CN209336025U - A kind of split type mold core of injection mold - Google Patents
A kind of split type mold core of injection mold Download PDFInfo
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- CN209336025U CN209336025U CN201822218820.4U CN201822218820U CN209336025U CN 209336025 U CN209336025 U CN 209336025U CN 201822218820 U CN201822218820 U CN 201822218820U CN 209336025 U CN209336025 U CN 209336025U
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Abstract
The utility model discloses a kind of split type mold cores of injection mold, the mold core mold insert including mold core ontology and with the conical surface；Mold core ontology includes fixed part, front end and rear end, and mold core mold insert is set on fixed part, and fixed part is stretched out in mold core mold insert front end, forms annular groove between mold core mold insert and the front end and front end of fixed part；The front end of mold core mold insert is provided with the open groove that forming tank is constituted with annular groove；It is equipped with arc groove close to its front end on fixed part lateral wall, there are distances between arc groove and forming tank；The air discharge duct that the lateral wall of fixed part is equipped with outer link slot and both ends are connected to arc groove and outer link slot respectively；The gas vent for leading to link slot is provided on the lateral wall of mold core mold insert.By the above-mentioned means, the utility model can simplify processing technology, guarantee precision, it can also be ensured that the quality of product, and disassembling, assembling and replacing is convenient.
Description
Technical field
The utility model relates to injection mold fields, more particularly to a kind of split type mold core of injection mold.
Background technique
The mold core 1 of injection mold is mostly the structure of integral type at present, has the conical surface 2 and forming tank 3 on mold core 1, such as Fig. 1
It is shown.The structure usually has the drawback that one, processing technology complexity, forming tank 3 need to do electrode electric spark equipment and add
Work is completed, and the bad guarantee of precision；Two, it is not easy to be vented, is product molding end at forming tank 3, it is not corresponding at the structure
Exhaust structure, so the gas that product generates in injection heat plasticizing process is not easy to be discharged, therefore the system that such mold core 1 is produced
Product, have trapped gas, burn, starved the problems such as, quality cannot be guaranteed, and quality is not high；Three, 2 position of the conical surface is prone to wear, reason
That the conical surface 2 needs to be fitted close and be pressurized for a long time with mold core fixing seat in mold utilization on mold core 1, prolonged effect by
Pressure can cause the conical surface 2 to wear, and will lead to quality of item decline after wearing, or even will appear underproof product, for mill
It damages serious mold core 1 just and can only scrap processing and re-replace, and the replacement dismounting of mold core 1 is inconvenient, and due to being integral replacing, maintenance
Cost is relatively high.
Therefore, it is necessary to design a kind of mold core that can solve the above problem.
Utility model content
The utility model can be simplified mainly solving the technical problems that provide a kind of split type mold core of injection mold
Processing technology guarantees machining accuracy；Also there is exhaust structure, the gas that product generates in injection heat plasticizing process can be discharged
Body fills product more full, guarantees the quality of product；When wearing at the conical surface, the components of abrasion, dismounting side are only needed to change
Just, replacing construction is saved, maintenance cost is reduced.
In order to solve the above technical problems, the technical solution that the utility model uses is: providing a kind of injection mold
Split type mold core, comprising: mold core ontology and the mold core mold insert with the conical surface, the mold core mold insert cooperation are set in the mold core sheet
On body, the center line of the mold core mold insert is overlapped with the center line of the mold core ontology；The mold core ontology includes that fixation is arranged
Fixed part, the outer diameter of the mold core mold insert are less than the front end of the mold core mold insert internal diameter and outer diameter is inlayed greater than the mold core
The rear end of part internal diameter, the front end, fixed part and rear end are sequentially connected from front to back；The rear end of the mold core mold insert is supported
On the rear end, the fixed part is stretched out in the front end of the mold core mold insert, the inner sidewall of the mold core mold insert with it is described solid
Determine to form annular groove between the front end face in portion and the lateral wall of the front end；The front end of the mold core mold insert is in it
Open groove is arranged in the position of side wall, and the slot bottom of the opening groove is concordant with the front end of the fixed part, the opening
Property groove and the annular groove constitute forming tank；Position on the lateral wall of the fixed part close to its front end is provided with a circle arc
Groove, there are distances between the arc groove and the forming tank, and mold core mold insert inner sidewall and fixed part at the distance
Gap between lateral wall is 0.015mm-0.020mm；Position on the lateral wall of the fixed part close to its rear end is provided with one
It encloses outer link slot, multiple air discharge ducts, the both ends of the air discharge duct is distributed with around its axis direction on the lateral wall of the fixed part
It is connected to respectively with the arc groove and the outer link slot；It is provided on the lateral wall of the mold core mold insert and leads to the outer connection
The gas vent of slot.
Preferably, the lateral wall on the mold core mold insert positioned at the conical surface front end is the first cylindrical surface, the mold core edge
Lateral wall on part positioned at the conical surface rear end is the second cylindrical surface, and the diameter on the second cylindrical surface is greater than the straight of the first cylindrical surface
Diameter.
Preferably, the gas vent is arranged on second cylindrical surface.
Preferably, the gas vent has multiple.
Preferably, there are two the gas vents, two gas vents are oppositely arranged on the mold core mold insert.
Preferably, axis of the axis of the gas vent perpendicular to the mold core mold insert.
Preferably, the length direction of the air discharge duct is consistent with the axis direction of the mold core ontology.
Preferably, interior link slot corresponding with the outer link slot is provided on the inner sidewall of the mold core mold insert.
Preferably, it is provided with location hole on the rear end face of the mold core mold insert, the axis of the location hole is parallel to the mould
The axis of core mold insert；Position on the lateral wall of the rear end close to its front end is provided with keyway, after the keyway runs through described
The front end face of end is simultaneously opposite with the location hole；The positioning hole is provided with positioning pin, and one end of the positioning pin is fixed
It is arranged in the positioning hole, the other end of the positioning pin is plugged in the keyway.
The beneficial effects of the utility model are: the utility model can simplify processing technology, guarantee machining accuracy；Also have
There is exhaust structure, the gas that product generates in injection heat plasticizing process can be discharged, fill product more full, guarantees system
The quality of product；At the conical surface wear when, only need to change the components of abrasion, it is convenient for disassembly and assembly, save replacing construction, reduce maintenance at
This；Its structure is simple, easy to use.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of mold core in background technique；
Fig. 2 is a kind of schematic cross-sectional view of one preferred embodiment of split type mold core of injection mold of the utility model；
Fig. 3 is the partial structurtes enlarged diagram in the portion A in Fig. 2；
Fig. 4 is the schematic perspective view of mold core ontology in a kind of split type mold core of injection mold of the utility model；
Fig. 5 is that the stereochemical structure of another angle of mold core ontology in a kind of split type mold core of injection mold of the utility model is shown
It is intended to；
Fig. 6 is the schematic perspective view of mold core mold insert in a kind of split type mold core of injection mold of the utility model；
Fig. 7 is that the stereochemical structure of another angle of mold core mold insert in a kind of split type mold core of injection mold of the utility model is shown
It is intended to.
The components in the drawings are labeled as follows: 1, mold core；2, the conical surface；3, forming tank；4, mold core ontology；41, fixed part；
42, front end；43, rear end；44, arc groove；45, outer link slot；46, air discharge duct；47, annular groove；48, keyway；5, mould
Core mold insert；51, the first cylindrical surface；52, the second cylindrical surface；53, interior link slot；54, gas vent；55, open groove；56, fixed
Position hole；6, exhaust chamber.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
Fig. 2 to Fig. 7 is please referred to, the utility model embodiment includes:
A kind of split type mold core of injection mold, comprising: mold core ontology 4 and the mold core being equipped on mold core ontology 4
Mold insert 5；Surface structure after the mold core ontology 4 and the mold core mold insert 5 combination is similar to the surface structure of original mold core, no
The appearance for influencing mold core, nor affects on use.The mold core mold insert 5 is set on the mold core ontology 4, the mold core mold insert 5
Center line be overlapped with the center line of the mold core ontology 4.The mold core ontology 4 includes that fixation is arranged the mold core mold insert 5
Fixed part 41, outer diameter are less than the front end 42 of 5 internal diameter of mold core mold insert and outer diameter is greater than 5 internal diameter of mold core mold insert
Rear end 43, the front end 42, fixed part 41 and rear end 43 are sequentially connected from front to back.The rear end of the mold core mold insert 5
It is against on the rear end 43, the fixed part 41, the inner sidewall of the mold core mold insert 5 are stretched out in the front end of the mold core mold insert 5
Annular groove 47 is formed between the front end face of the fixed part 41 and the lateral wall of the front end 42.The mold core mold insert 5
Lateral wall on there is the conical surface 2, can be fitted close and be pressurized for a long time with mold core fixing seat；The design completely of the conical surface 2 is in mould
On core mold insert 5, mold core mold insert 5 can be only replaced after for a long time using the abrasion that is pressurized, reduce replacement cost, and replaced easy to be fast
Replacing construction is saved in victory, improves production efficiency.Lateral wall on the mold core mold insert 5 positioned at 2 front end of the conical surface is the first circle
Cylinder 51, the lateral wall that 2 rear end of the conical surface is located on the mold core mold insert 5 is the second cylindrical surface 52, the second cylindrical surface 52
Diameter is greater than the diameter on the first cylindrical surface 51.The front end of the mold core mold insert 5 is open recessed close to the setting of the position of its inner sidewall
The slot bottom of slot 55, the opening groove 55 is concordant with the front end of the fixed part 41, the opening groove 55 and the ring
Shape slot 47 constitutes forming tank 3；It is completed the process without doing electrode with electric spark equipment in processing, only needs directly to be added with numerically controlled lathe
Work goes out two open steps, simple process, easy to operate, and machining accuracy can guarantee.The fixed part 41
Position on lateral wall close to its front end is provided with a circle arc groove 44, stays between the arc groove 44 and the forming tank 3
There is certain distance, and the gap between 41 lateral wall of 5 inner sidewall of mold core mold insert at the distance and fixed part is 0.015mm-
Any one numerical value in 0.020mm (numberical range includes 0.015mm and 0.020mm), that is to say, that the fixation itself
Respective inside wall on lateral wall and the mold core mold insert 5 in portion 41 between the arc groove 44 and the forming tank 3
Gap be any one numerical value in 0.015mm-0.020mm, which can be discharged the gas in forming tank 3, but not
Pass through the glue material of production product in forming tank 3.Position on the lateral wall of the fixed part 41 close to its rear end is provided with one
Enclose outer link slot 45；There are three air discharge duct 46, the air discharge ducts for the distribution of its axis direction of lateral wall Shangrao of the fixed part 41
46 both ends are connected to the arc groove 44 and the outer link slot 45 respectively, can make the gas flow in arc groove 44
Outer link slot 45.Interior link slot 53 corresponding with the outer link slot 45 is provided on the inner sidewall of the mold core mold insert 5, it can be with
More preferably, gas is discharged faster, improves processing efficiency；The interior link slot 53 can form an exhaust with the outer link slot 45
Chamber 6, in order to which gas is more drained into discharge chamber.It is provided on second cylindrical surface 52 and leads to the interior link slot 53
With the gas vent 54 of the outer link slot 45, i.e., the described gas vent 54 is communicated with the exhaust chamber 6, with can facilitate discharge from
The gas for being generated in forming tank 3 and flowing to arc groove 44, flow to exhaust chamber 6 by air discharge duct 46 again.Arc groove 44, exhaust
The structure in the gap for leading to arc groove 44 in slot 46, interior link slot 53, outer link slot 45, gas vent 54 and forming tank 3 is set
The defects of meter can make injection-molded item be easier to fill, product trapped gas, starved is effectively solved, and the quality of product greatly mentions
It is high.The axis of the gas vent 54 perpendicular to the mold core mold insert 5 axis, can guarantee the structural strength of mold core mold insert 5.
There are two the gas vents 54, and two gas vents 54 are oppositely arranged on the mold core mold insert 5, gas to be discharged faster, protects
Demonstrate,prove the quality of plastic products.
Location hole 56 is provided on the rear end face of the mold core mold insert 5, the axis of the location hole 56 is parallel to the mold core
The axis of mold insert 5；Position on the lateral wall of the rear end 43 close to its front end is provided with keyway 48, and the keyway 48 runs through institute
State the front end face of rear end 43 and opposite with the location hole 56.Positioning pin is provided in the location hole 56 (not show in figure
Out), one end of the positioning pin is fixed in the location hole 56, and the other end of the positioning pin is plugged in the keyway
In 48, to prevent mold core mold insert 5 from rotating relative to mold core ontology 4, it is further ensured that being connected and fixed for the two.
The utility model can simplify processing technology, guarantee machining accuracy；Also there is exhaust structure, product can be discharged
The gas generated in injection heat plasticizing process fills product more full, guarantees the quality of product；When being worn at the conical surface 2,
The components of abrasion are only needed to change, it is convenient for disassembly and assembly, replacing construction is saved, maintenance cost is reduced；Its structure is simple, easy to use.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (9)
1. a kind of split type mold core of injection mold characterized by comprising mold core ontology and the mold core mold insert with the conical surface,
The mold core mold insert cooperation is set on the mold core ontology, the center of the center line of the mold core mold insert and the mold core ontology
Line is overlapped；The mold core ontology includes the fixed fixed part for being arranged the mold core mold insert, outer diameter less than the mold core mold insert internal diameter
Front end and outer diameter be greater than the rear end of the mold core mold insert internal diameter, the front end, fixed part and rear end are in the past extremely
After be sequentially connected；The rear end of the mold core mold insert is against on the rear end, and the fixation is stretched out in the front end of the mold core mold insert
Portion forms ring between the inner sidewall of the mold core mold insert and the front end face of the fixed part and the lateral wall of the front end
Shape slot；Open groove, the slot bottom of the opening groove is arranged close to the position of its inner sidewall in the front end of the mold core mold insert
Concordant with the front end of the fixed part, the opening groove and the annular groove constitute forming tank；The outside of the fixed part
Position on wall close to its front end is provided with a circle arc groove, and there are distances between the arc groove and the forming tank, and
Gap between mold core mold insert inner sidewall at the distance and fixed part lateral wall is 0.015mm-0.020mm；The fixed part
Lateral wall on close to the position of its rear end be provided with the outer link slot of a circle, around its axis direction point on the lateral wall of the fixed part
Multiple air discharge ducts are furnished with, the both ends of the air discharge duct are connected to the arc groove and the outer link slot respectively；The mold core
The gas vent for leading to the outer link slot is provided on the lateral wall of mold insert.
2. a kind of split type mold core of injection mold according to claim 1, it is characterised in that: the mold core mold insert is upper
Lateral wall in the conical surface front end is the first cylindrical surface, and the lateral wall that the conical surface rear end is located on the mold core mold insert is the
Two cylindrical surfaces, the diameter on the second cylindrical surface are greater than the diameter on the first cylindrical surface.
3. a kind of split type mold core of injection mold according to claim 2, it is characterised in that: the gas vent setting exists
On second cylindrical surface.
4. a kind of split type mold core of injection mold according to claim 1 or 2 or 3, it is characterised in that: the gas vent
Have multiple.
5. a kind of split type mold core of injection mold according to claim 4, it is characterised in that: the gas vent has two
A, two gas vents are oppositely arranged on the mold core mold insert.
6. a kind of split type mold core of injection mold according to claim 1 or 3, it is characterised in that: the gas vent
Axis of the axis perpendicular to the mold core mold insert.
7. a kind of split type mold core of injection mold according to claim 1, it is characterised in that: the length of the air discharge duct
Direction is consistent with the axis direction of the mold core ontology.
8. a kind of split type mold core of injection mold according to claim 1, it is characterised in that: the mold core mold insert it is interior
Interior link slot corresponding with the outer link slot is provided on side wall.
9. a kind of split type mold core of injection mold according to claim 1, it is characterised in that: after the mold core mold insert
Location hole is provided on end face, the axis of the location hole is parallel to the axis of the mold core mold insert；The lateral wall of the rear end
The upper position close to its front end is provided with keyway, and the keyway is through the front end face of the rear end and opposite with the location hole；
The positioning hole is provided with positioning pin, and one end of the positioning pin is fixed at the positioning hole, the positioning pin
The other end is plugged in the keyway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822218820.4U CN209336025U (en) | 2018-12-27 | 2018-12-27 | A kind of split type mold core of injection mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822218820.4U CN209336025U (en) | 2018-12-27 | 2018-12-27 | A kind of split type mold core of injection mold |
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| CN209336025U true CN209336025U (en) | 2019-09-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112123656A (en) * | 2020-09-10 | 2020-12-25 | 苏州三湘利电子科技有限公司 | Mold insert design of fluid control framework structure |
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2018
- 2018-12-27 CN CN201822218820.4U patent/CN209336025U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112123656A (en) * | 2020-09-10 | 2020-12-25 | 苏州三湘利电子科技有限公司 | Mold insert design of fluid control framework structure |
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