CN209141351U - A kind of injection mold - Google Patents
A kind of injection mold Download PDFInfo
- Publication number
- CN209141351U CN209141351U CN201821443443.8U CN201821443443U CN209141351U CN 209141351 U CN209141351 U CN 209141351U CN 201821443443 U CN201821443443 U CN 201821443443U CN 209141351 U CN209141351 U CN 209141351U
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- CN
- China
- Prior art keywords
- mold
- interior module
- module
- injection
- connecting 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.)
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of injection molds, include mold and interior module, and mold is provided with the connecting hole for connecting interior module；The injection hole that interior module is provided with the die cavity for injection molding and is connected to die cavity, interior module are exhaust Steel material；Mold is provided with the exhaust duct being connected to connecting hole.It can be reduced unnecessary air discharge duct in die cavity wall, reduce injection pressure, reduce the formed product dwell time, reduce and eliminate product internal stress, prevent deformation of products, die joint is avoided to open the overlap and other flaws of exhaust system generation, it can make to be resolved due to the problem of more difficult formed products such as cast gate deviation, wall unevenness even, thin-walled, moulding material high temperature generate gas and mold cavity in quickly gather pressure caused by burn, trace, lack material, part deformation the defects of sufficiently solved, production efficiency is improved, production cost is saved.
Description
Technical field
The utility model relates to mould applications, more particularly, to a kind of injection mold.
Background technique
During mold injection, fused materials are entered in mold cavity, due to the intracavitary presence for itself having air and are melted
Material can generate various gases during heating.It is being heated to exhaust gas in mold cavity and fused materials
Various gases can be generated in the process, and the measure that the prior art uses is main are as follows: on the mould intracavity wall face and/or face of product
On open little groove, the gas in die cavity along these little grooves discharge chamber outside, easily cause be molded into product in cavity in this way
It is easy to produce the flaws such as burr on face, pressure is quickly gathered in the gas and mold cavity generated due to fused materials high temperature and generates product
It burns, trace, lack material, product internal stress is big, is easy to produce the deformation of product, has some thimbles, mold insert that can not provide enough
Surface region is to accommodate the factors such as bulk gas.It has been filled out when trapped gas in the center of die cavity, fused materials and has covered mould intracavity wall face,
Gas cannot be thus discharged, because die cavity alluviation gas, continues injection molding, pressure increase will cause gas to fire when molding
It burns, forms product and burn the appearance for influencing product.
Thus, it is necessary to which a kind of novel mold is arranged, the gas in die cavity can be smoothly discharged, and gas compression is avoided to fire
It is quick-fried.
Utility model content
In order to overcome the deficiencies of the prior art, the technical solution adopted in the utility model is:
A kind of injection mold, includes mold and interior module, and the mold is provided with the company for connecting interior module
Connect hole；The injection hole that the interior module is provided with the die cavity for injection molding and is connected to die cavity, interior module are exhaust Steel material；
The mold is provided with the exhaust duct being connected to connecting hole.
Another specific embodiment according to the present utility model, further has, on the interior module with connecting hole hole wall
The part not being bonded forms exhaust clearance with mold；Exhaust clearance is connected to exhaust duct.
Another specific embodiment according to the present utility model, further has, on the connecting hole hole wall and/or internal model
The setting of part outer wall is fluted, and groove is connected to exhaust duct.
Another specific embodiment according to the present utility model, further has, and is provided with ring on the connecting hole hole wall
Around the groove of interior module, groove is connected to exhaust duct.
Another specific embodiment according to the present utility model, further has, and the interior module is in the form of a column；On interior module
It is provided with notch, notch is connected to exhaust duct.
Another specific embodiment according to the present utility model, further has, and the mold is provided with cooling duct,
Coolant liquid in cooling duct is used to cool down the material in die cavity.
Another specific embodiment according to the present utility model, further has, the interior module by aligning structure with
Connecting hole connection.
Another specific embodiment according to the present utility model, further has, and the aligning structure is including setting
The alignment grooves for aligning protrusion and be arranged on connecting hole hole wall on module.
Another specific embodiment according to the present utility model, further has, and at least two are provided on the mold
A connecting hole, interior module are correspondingly arranged at least two.
The utility model use a kind of injection mold, have the advantages that can be reduced it is unnecessary in die cavity wall
Air discharge duct can reduce injection pressure, reduce the formed product dwell time, reduces and eliminates product internal stress, prevent product from becoming
Shape avoids die joint from opening the overlap and other flaws of exhaust system generation, can make due to cast gate deviation, wall unevenness is even, thin-walled
The problem of Deng more difficult formed product, is resolved, and quickly gathers pressure in the gas and mold cavity that moulding material high temperature generates and draws
Rise burn, trace, lack material, part deformation the defects of sufficiently solved, improve production efficiency, save production cost.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model；
Fig. 2 is the structural schematic diagram of module in the utility model；
Fig. 3 is the cross-sectional view of module in the utility model.
Specific embodiment
Specific embodiment of the present utility model is described in further detail below in conjunction with attached drawing.
As shown in Figure 1 to Figure 3, a kind of injection mold includes mold 1 and interior module 2, and mold 1, which is provided with, to be used for
The connecting hole of module 2 in connecting；The injection hole 2b that interior module 2 is provided with the die cavity 2a for injection molding and is connected to die cavity 2a,
Interior module 2 is exhaust Steel material；Mold 1 is provided with the exhaust duct being connected to connecting hole.
Mold 1 includes die ontology, the inserts for assembling interior module 2, and connecting hole is arranged in inserts；Mold sheet
Body is provided with the mounting hole for assembling inserts.Common, mold 1 includes upper cores and lower mode, and the interior setting of module 2 exists
In upper cores or lower mode, the die joint of injection hole 2b connection mode is arranged between upper cores and lower mode；Upper cores with
Lower mode molding, by injection hole 2b toward die cavity 2a injection material.At least two connecting holes, interior module 2 are provided on mold 1
It is correspondingly arranged at least two；In the single injection process of mold 1, primary injection molding obtains multiple products.
It is vented steel, the micropore that there are many inside, the volume of 20%-30% is loose hole.In injecting products in mold cavity
When, the micropore permeation that air can be smoothly through above steel is gone out, can be reduced unnecessary gas vent on die cavity 2a wall surface,
Air discharge duct reduces injection pressure, reduces the formed product dwell time, reduces and eliminate the stress of product.It avoids utilizing die joint
The overlap flaw opening exhaust system and generating, is sufficiently solved, and production efficiency is improved, and saves production cost.
The manufacture craft of injection mold includes step a~c.Step a, 1 machine-shaping of mold are arranged on mold 1
There is connecting hole and be connected to the exhaust duct of connecting hole, exhaust Steel material machine-shaping is interior module 2, is provided with mould on interior module 2
The chamber 2a and injection hole 2b for being connected to die cavity 2a.With forging casting technology, processing obtains mold 1, and connecting hole, exhaust duct forging are cast
Type；Preferably, 1 connecting hole of mold after forging casting is ground and/or is polished.It is common, mold 1 include upper cores and
Lower mode, forging casting obtains upper cores and lower mode in step a, and connecting hole is arranged in upper cores or lower mode, upper after forging casting
Mode and lower mode are attached face grinding and/or polishing.The interior module 2 of step a is machining on numerical control device, selects
It is vented Steel material, the interior module 2 with die cavity 2a is obtained by milling.Such as, interior module 2 is set as cylindrical type, first selects exhaust steel
Bar carries out outer wall turnning and milling to bar, obtains die cavity 2a by boring milling and/or bore hole.
Step b is removed the burr on interior 2 outer wall of module and die cavity 2a wall surface by grinding wheel, and wheel grinding speed 40~
80m/s, grinding wheel graininess >=800,100~130L/h of flow velocity of cuttings liquid；Module 2 is vented the gas permeability of steel in guaranteeing.Interior module 2
Burr removal is clean on outer wall and die cavity 2a wall surface, and gained surface is clean and tidy, convenient for the electro-discharge machining of clast, avoids remaining surface
Burr causes pitting in electro-discharge machining.40~80m/s of speed of the relatively interior module 2 in wheel grinding face；Preferably, wheel grinding
60~80m/s of speed, grinding wheel graininess >=1000,115~130L/h of flow velocity of cuttings liquid, the more finishing of interior 2 surface of module, roughness
Small, burr removal is clean, and clast is smaller and is easy to be washed away by the cuttings liquid that flow velocity is 115~130L/h.
Step c, interior module 2 connect power supply, and module 2 in electro-discharge machining, the clast of exhaust steel hole, which melts, to be removed, power supply
24~36V of voltage, 120~190A of electric current, 2~5min of interior 2 conduction time of module.Preferably, 30~36V of voltage, electric current 150~
190A, 3~4min of interior 2 conduction time of module.Alternatively, 32~36V of first power-on voltage, 150~190A of electric current, interior module 2 are powered
2~3min of time；30~32V of power-on voltage, 120~160A of electric current again, 2~5min of interior 2 conduction time of module.Burn-up grinding or
Make the clast of blockage of the micro orifice when milling, admirably guarantees the gas permeability of module 2 in exhaust steel, gas excludes good in mold injection
Good, institute's injection material pressure maintaining is good.
In step a and step b, oiliness cuttings liquid is used；2~6cSt of viscosity of cuttings liquid used in step b.More preferably
, 2~4cSt of viscosity of cuttings liquid, clast can preferably be rinsed removing.In step a and step b, the superhard matter of M class is used
Alloy-steel cutter.
In step c, by module 2 in jig clamping, epoxy resin is set as clamping the component of interior module 2 on jig
Material.Epoxide resin material has fabulous insulating properties, high temperature resistant high voltage.
In step c, by module 2 in jig clamping, interior module 2 is driven to shake by vibration device；It is put in first
For the interior module 2 of angle after being powered and shaking a period of time, jig drives interior module 2 to turn to the second placement angle, interior module 2
Continue to be powered and shake.
It further include having step d, after the clast of exhaust steel hole is removed, interior module 2 covers antirust oil and storage.
Interior module 2 with a thickness of 3~10mm.
The part not being bonded on interior module 2 with connecting hole hole wall forms exhaust clearance, exhaust clearance connection with mold 1
Exhaust duct.Preferably, the part not being bonded on interior module 2 with connecting hole hole wall, it is only necessary to be arranged on interior module 2 far from injection hole
One end of 2b, during mold injection, the air at the top of product can be discharged from exhaust steel.Alternatively, on connecting hole hole wall
And/or fluted, groove connection exhaust duct is arranged in interior 2 outer wall of module；Preferably, it is provided on connecting hole hole wall around interior module
2 groove, groove are connected to exhaust duct.Preferably, groove only needs to be arranged in one end on interior module 2 far from injection hole 2b.
Interior module 2 is in the form of a column；Notch is provided on interior module 2, notch is connected to exhaust duct, and notch is formed with connecting hole hole wall
Gap, gap are connected to exhaust duct.Preferably, interior module 2 is in cylindrical type, is provided with several notch on the cylinder of interior module 2.
Mold 1 is provided with cooling duct 3, and the coolant liquid in cooling duct 3 is used to cool down the material in die cavity 2a.It is cooling
Channel 3 and connecting hole are close or even cooling duct 3 is on the outside of connecting hole.
Interior module 2 is connect by aligning structure with connecting hole, in the interior contraposition of module 2 insertion mold 1, the position injection hole 2b
Fixed and position precision is preferable, is molded convenient for material.It common are, aligning structure includes that the contraposition that is arranged on interior module 2 is convex
The alignment grooves for rising and being arranged on connecting hole hole wall.
Interior module 2 is additionally provided with vent, and vent is connected to connecting hole.
Above embodiments are only to illustrate the technical solution of the utility model and are not intended to limit it, all without departing from this
Any modification of utility model spirit and scope or equivalent replacement should all cover the range in technical solutions of the utility model
It is interior.
Claims (9)
1. a kind of injection mold, it is characterised in that: include mold (1) and interior module (2), the mold (1) is provided with
For connecting the connecting hole of interior module (2)；The interior module (2) be provided with for injection molding die cavity (2a) and with die cavity (2a)
The injection hole (2b) of connection, interior module (2) are exhaust Steel material；The mold (1) is provided with the exhaust being connected to connecting hole
Road.
2. a kind of injection mold according to claim 1, it is characterised in that: on the interior module (2) with connecting hole hole wall
The part not being bonded forms exhaust clearance with mold (1)；Exhaust clearance is connected to exhaust duct.
3. a kind of injection mold according to claim 1 or 2, it is characterised in that: on the connecting hole hole wall and/or internal model
The setting of part (2) outer wall is fluted, and groove is connected to exhaust duct.
4. a kind of injection mold according to claim 3, it is characterised in that: be provided on the connecting hole hole wall around interior
The groove of module (2), groove are connected to exhaust duct.
5. a kind of injection mold according to claim 1 or 2, it is characterised in that: the interior module (2) is in the form of a column；Internal model
Notch is provided on part (2), notch is connected to exhaust duct.
6. a kind of injection mold according to claim 1, it is characterised in that: the mold (1) is provided with cooling duct
(3), the coolant liquid in cooling duct (3) is used to cool down the material in die cavity (2a).
7. a kind of injection mold according to claim 1, it is characterised in that: the interior module (2) by aligning structure with
Connecting hole connection.
8. a kind of injection mold according to claim 7, it is characterised in that: the aligning structure includes being arranged in interior module
(2) alignment grooves for aligning protrusion and be arranged on connecting hole hole wall on.
9. a kind of according to claim 1,2,6 to 8 any injection mold, it is characterised in that: set on the mold (1)
At least two connecting holes are equipped with, interior module (2) is correspondingly arranged at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821443443.8U CN209141351U (en) | 2018-09-03 | 2018-09-03 | A kind of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821443443.8U CN209141351U (en) | 2018-09-03 | 2018-09-03 | A kind of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209141351U true CN209141351U (en) | 2019-07-23 |
Family
ID=67266836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821443443.8U Expired - Fee Related CN209141351U (en) | 2018-09-03 | 2018-09-03 | A kind of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209141351U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116080015A (en) * | 2023-02-27 | 2023-05-09 | 李丽萌 | Hand mold forming mold and demolding method |
-
2018
- 2018-09-03 CN CN201821443443.8U patent/CN209141351U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116080015A (en) * | 2023-02-27 | 2023-05-09 | 李丽萌 | Hand mold forming mold and demolding method |
| CN116080015B (en) * | 2023-02-27 | 2024-05-10 | 李丽萌 | Hand mold forming mold and demolding method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190723 |