CN206520161U - A kind of injection mold gas-guiding structure - Google Patents
A kind of injection mold gas-guiding structure Download PDFInfo
- Publication number
- CN206520161U CN206520161U CN201621226604.9U CN201621226604U CN206520161U CN 206520161 U CN206520161 U CN 206520161U CN 201621226604 U CN201621226604 U CN 201621226604U CN 206520161 U CN206520161 U CN 206520161U
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- push pedal
- exhaust
- edge
- cavity
- injection mold
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Abstract
The utility model discloses a kind of injection mold gas-guiding structure, including push pedal, front cavity and rear cavity, the through hole matched with front cavity is provided with the middle part of described push pedal, front cavity is arranged on through hole, rear cavity can cooperatively form injection molding cavity with front cavity, exhaust ring, the edge connection of exhaust ring and front cavity are provided with push pedal through hole edge.Original four direction exhaust structure is changed to whole circle exhaust, the too small influence exhaust in prior art intermediate gap is overcome, gap is too big then to produce the technical problem of overflow edge, and provides a complete exhaust passage, the mold use life-span is improved, the yields of product is improved.
Description
Technical field
The present invention relates to injection mold field, more particularly to a kind of injection mold gas-guiding structure.
Background technology
In injection production process, when particularly producing the injecting products of big part, it is often necessary to which front and rear die is combined, with shape
Into injection molding cavity, then by injecting high temperature colloid in injection molding cavity, followed by cooling so that product cooling is molded.In injection
During, because being full of air in original injection molding cavity, need when high temperature colloid is injected, by original in injection molding cavity
Air squeeze out.Because after the pressure of high temperature colloid is big, and general front and rear die is combined, because the need for technique, can reserve
Exhaust space very little, so exhaust for extremely important in injection moulding process.
In existing exhaust technique, typically use four direction passages and be exhausted, because the requirement of mould in itself, exhaust
Passage can not crime it is very big, no person can influence the stability of die, so it is common technology that four direction passages, which are exhausted, but
It is to be found in actual production, four exhaust channels are firstly because capacity is smaller, so need to increase the gap of exhaust, but
The consequence of gap increase is then the overflow edge for producing injecting products, causes product edge to produce burr, but not in time discharges air,
Bubble is then easily produced in injecting products, product quality is influenceed, is only by injection molding cavity in the prior art moreover
Air exports to the other positions of mould, is mainly released air by the space between mould, if the preferable mould of sealing
Tool, the stability that mould can be influenceed overall, or even occur pouring in down a chimney for air, have a strong impact on product quality and die life.
The content of the invention
The problem to be solved in the present invention is how to solve exhaust clearance in injection moulding process to cause very much the situation of overflow edge to send out greatly
It is raw, and mould the problem of be vented in time, also has the problem of overall exhaust is unimpeded in addition.
In order to solve the above problems, the invention provides a kind of injection mold gas-guiding structure, including push pedal, front cavity and after
The through hole matched with front cavity is provided with the middle part of die, described push pedal, described front cavity is arranged on through hole, described
Rear cavity can cooperatively form with front cavity and exhaust ring is provided with injection molding cavity, described push pedal through hole edge, the exhaust ring with
The edge connection of front cavity.It is vented by the way that the exhaust mode of injection molding cavity is changed into whole circle, original air is passed through into injection molding cavity side
Edge is all discharged, and is solved 4 points that the exhaust of original four direction only leans on and is exhausted, greatly accelerates the efficiency of exhaust, because
To increase the area of exhaust, so exhaust clearance can reduce accordingly, the situation hair of the excessive glue in injection moulding process is prevented
It is raw, product quality is improved, a good exhaust passage is provided again.
Exhaust ring is chamfering structure.Chamfering structure is equivalent to the passage there is provided an air discharge, and injection molding cavity is by falling
The gap at angle is overflowed, and overall structure is not influenceed.
Exhaust ring gap length is 0.008mm-0.012mm., can be effectively by gap length control in the range of this
The generation of overflow edge accident is prevented, while ensure that the exhaust efficiency of maximum.
Peripheral exhaust groove is additionally provided with push pedal, described peripheral exhaust groove is arranged in push pedal with circular configuration.
Peripheral exhaust groove is actually a part for the guide pipeline of whole mould, and the effect for accommodating certain air is also taken in addition,
Using circular benefit be with exhaust ring respective outer side edges, be conducive to the release of gas.
The air slot of peripheral exhaust groove is additionally provided with push pedal, described air slot one end connects with peripheral exhaust groove
Logical, the other end is connected with push pedal edge.Air slot is a part for the guide pipeline of whole mould, and effect is that peripheral exhaust is recessed
Air in groove is guided to the edge of push pedal, makes air export outside, the effect for accommodating portion of air is also taken in addition.
Also include engaging set, described engaging is set on push pedal periphery, and described engaging set height is slightly above front cavity
Highly.Engaging is set on push pedal edge, and effect is to prevent front and rear die during combination, because some mistakes cause mistake
Position so that die is damaged.The position of engaging set can allow rear cavity to engage just, and rear cavity can be then withstood when misplacing, and prevent
Only contingency occurs.And the height for engaging set is slightly above the height of front cavity, it is therefore an objective to which placing dislocation is, damage front cavity
End.
Engaging set is with the edge of the forward die one side of push pedal, being provided with edge air slot, the edge air slot is with leading
Air drain together with.Because there is engaging to cover, need to set the structure of air guide on engaging set, what is contacted with push pedal
Edge, on the position of the EDGE CONTACT of the one side of die, is provided with edge air guide air slot, this edge air slot is to set
Put on engaging set, in groove structure, it is therefore an objective to guide air to enter, and accommodate certain air.
Engaging, which is put, is additionally provided with steam vent, and described steam vent is arranged on edge air slot, and described steam vent is passed through
Wear engaging set.Steam vent is arranged on edge air slot, for the air on edge air slot to be exported outside mould.
Rear cavity can be mutually clamped with engaging set, with front cavity formation injection molding cavity.Rear cavity with engage set engaging there is provided
One accurate binding site, prevents the accident that dislocation is combined from occurring.
Interface channel is provided with the face that rear cavity is contacted with push pedal, described interface channel connection exhaust ring and periphery are arranged
Gas groove.Overall exhaust mode is, after the combination of front and rear die, and the air formed in injection molding cavity, injection molding cavity passes through exhaust ring
It is delivered on the interface channel on rear cavity face, interface channel connects the air in this peripheral exhaust groove, peripheral exhaust groove
It is extruded continuation to move to air slot, air slot connection edge air slot is arranged finally by the steam vent on the air slot at edge
Go out outside mould, whole pipeline both serves guiding air discharge, and the effect for accommodating a certain amount of air is served again.
The present invention has following beneficial effect：
1. do not produce overflow edge.Because the air-guiding gap used is controlled between 0.008mm-0.012mm, this gap can
Ensure not produce overflow edge during air guide, it is ensured that the quality of product.
2. exhaust is smoothly.Because the air that exhaust is used in whole circle exhaust, injection molding cavity can be from each side
To timely discharge, reduce and bubble is produced in product because exhaust is caused not in time.
3. overall exhaust is unimpeded.There is a complete exhaust passage outside from injection molding cavity to mould, gas open is discharged
Outside mould, solve it is original exhaust simply dug out in mould a part space carry out receiving air, and by mould it
Between gap discharge gas, so as to have influence on the quality of product and the life-span of mould.
Brief description of the drawings
Fig. 1 is a kind of schematic perspective view of injection mold gas-guiding structure of the invention.
Brief description of the drawings：1 is exhaust ring, and 2 be peripheral exhaust groove, and 3 be air slot, and 4 be edge air discharge duct, and 5 be steam vent.
Embodiment
Presently preferred embodiments of the present invention is described in detail below in conjunction with the accompanying drawings so that the present invention a little with feature more
Easily it is readily appreciated by one skilled in the art, so as to make apparent define to protection scope of the present invention.
Embodiment 1
A kind of injection mold gas-guiding structure of the present invention is main by push pedal, front cavity, rear cavity and engaging set mutually composition, pushes away
The middle part of plate can set on through hole and be fixed provided with circular through hole, die.Engaging is set on the edge of push pedal, is blocked
Trap is tubular structure, and height is slightly above the height of front cavity, and inside just surrounds push pedal, is contacted in engaging set with push pedal
Position, on the edge of the contact of the plane of front cavity, is provided with edge air slot 3, edge air slot 3 is to engaging set side
Steam vent 5 is provided with to the structure of depression, and in the bottom of depression.Exhaust ring 1, exhaust ring 1 are provided with the edge of through hole
Specially one circle chamfering, the gap length between chamfering and original through hole edge is 0.008mm-0.012mm.In push pedal,
A circle peripheral exhaust groove 2 is provided with the periphery of through hole, peripheral exhaust groove 2 does not connect with exhaust ring 1.Peripheral exhaust groove
Be provided with four air slots 3 on 2 periphery, air slot 3 be arranged on four positive directions of rounded periphery air discharge duct to.Air slot 3
One end is connected with the exhaust groove of periphery, and the other end is connected with edge air slot 3.
Rear cavity is structure as a whole, on the face that rear cavity is contacted with push pedal, is provided with interface channel, and interface channel can be with
After front cavity is combined with rear cavity, connection exhaust ring 1 and peripheral exhaust groove 2.
Specific workflow is that after current rear cavity is combined, the air guide channel of mould is because of front and rear die dependency structure
Coordinate, form a closed aiutage for leading to mold exterior and arrive.When high temperature colloid injects, the air in injection molding cavity is first
Shed, because air guide area is big, in time can discharged the air in injection molding cavity by the whole circle of exhaust ring 1.The row of exhaust ring 1
In the air gone out, the peripheral exhaust groove 2 that push pedal is entered by the interface channel of rear cavity, in peripheral exhaust groove 2
Air continues to be under pressure, then by the air slot 3 that four positive directions are set in peripheral exhaust groove 2, enters in engaging set
On edge air discharge duct 4, air is discharged by the steam vent 5 on edge air discharge duct 4.
The air discharge duct combined to form using this front and rear die, can prevent excessive in die edge fluting, and moving back
Directly set air guide channel that die can be brought to fix in the class to pay no attention to and the problem of excessive glue is serious.
Embodiments of the present invention are explained in detail above in conjunction with accompanying drawing, but the present invention is not limited to above-mentioned implementation
Mode, can also be on the premise of present inventive concept not be departed from the knowledge that those of ordinary skill in the art possess
Various changes can be made.
Claims (10)
1. it is provided with and preceding mould in the middle part of a kind of injection mold gas-guiding structure, including push pedal, front cavity and rear cavity, described push pedal
The through hole that benevolence matches, described front cavity is arranged on through hole, and described rear cavity can cooperatively form injection molding cavity with front cavity,
Characterized in that, exhaust ring is provided with described push pedal through hole edge, the edge connection of the exhaust ring and front cavity.
2. injection mold gas-guiding structure according to claim 1, it is characterised in that described exhaust ring is chamfering structure.
3. injection mold gas-guiding structure according to claim 2, it is characterised in that described exhaust ring gap length is
0.008mm-0.012mm。
4. injection mold gas-guiding structure according to claim 1, it is characterised in that be additionally provided with periphery in described push pedal
Exhaust groove, described peripheral exhaust groove is arranged in push pedal with circular configuration.
5. injection mold gas-guiding structure according to claim 4, it is characterised in that be additionally provided with periphery in described push pedal
Exhaust groove air slot, described air slot one end is connected with peripheral exhaust groove, and the other end is connected with push pedal edge.
6. injection mold gas-guiding structure according to claim 1, it is characterised in that also including engaging set, described engaging
Push pedal periphery is set on, described engaging set height is slightly above front cavity height.
7. injection mold gas-guiding structure according to claim 6, it is characterised in that described engaging set and the forward mould of push pedal
On the edge of benevolence one side, be provided with edge air slot, the edge air slot and air slot together with.
8. injection mold gas-guiding structure according to claim 7, it is characterised in that described engaging puts the row of being additionally provided with
Stomata, described steam vent is arranged on edge air slot, and described steam vent covers through engaging.
9. injection mold gas-guiding structure according to claim 6, it is characterised in that described rear cavity can be with engaging set
It is mutually clamped, with front cavity formation injection molding cavity.
10. injection mold gas-guiding structure according to claim 1, it is characterised in that described rear cavity is contacted with push pedal
Face on be provided with interface channel, described interface channel connection exhaust ring and peripheral exhaust groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621226604.9U CN206520161U (en) | 2016-11-15 | 2016-11-15 | A kind of injection mold gas-guiding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621226604.9U CN206520161U (en) | 2016-11-15 | 2016-11-15 | A kind of injection mold gas-guiding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206520161U true CN206520161U (en) | 2017-09-26 |
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ID=59888269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621226604.9U Expired - Fee Related CN206520161U (en) | 2016-11-15 | 2016-11-15 | A kind of injection mold gas-guiding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206520161U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108437356A (en) * | 2018-03-13 | 2018-08-24 | 苏州精锐精密机械有限公司 | Injection mold |
-
2016
- 2016-11-15 CN CN201621226604.9U patent/CN206520161U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108437356A (en) * | 2018-03-13 | 2018-08-24 | 苏州精锐精密机械有限公司 | Injection mold |
| CN108437356B (en) * | 2018-03-13 | 2024-03-08 | 苏州精锐精密机械有限公司 | Injection mold |
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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: 20170926 Termination date: 20181115 |