CN206357581U - A kind of rotation stripping mechanism of gear injection mold - Google Patents
A kind of rotation stripping mechanism of gear injection mold Download PDFInfo
- Publication number
- CN206357581U CN206357581U CN201621324279.XU CN201621324279U CN206357581U CN 206357581 U CN206357581 U CN 206357581U CN 201621324279 U CN201621324279 U CN 201621324279U CN 206357581 U CN206357581 U CN 206357581U
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- CN
- China
- Prior art keywords
- dynamic model
- stripping mechanism
- injection mold
- core
- main core
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of rotation stripping mechanism of gear injection mold; including dynamic model small-sized core and zanjon bearing; the zanjon bearing is set on the outside of cavity block; the cavity block is arranged in cover half main core; the cavity block lower end sets in dynamic model main core, the dynamic model main core and is provided with the dynamic model small-sized core.Complicated gear mechanism is simplified to a bearing by the utility model, but function is constant；So doing both reduces cost, in turn simplify mould structure so that the manufacturing process of mould simplifies.
Description
Technical field
The utility model is related to injection mold technical field, more particularly to a kind of rotating stripping demoulding machine of gear injection mold
Structure.
Background technology
Injection mold is the tool for plasthetics rapid shaping.Injection mold is made up of dynamic model and cover half two parts,
Dynamic model is arranged on the moving die plate of injection (mo(u)lding) machine, and cover half is arranged on the fixed form of injection (mo(u)lding) machine.In injection moulding
When dynamic model and cover half closure constitute running gate system and die cavity, dynamic model and cover half separation are to take out plastic products during die sinking.Mould
Mainly it is made up of running gate system, thermoregulating system, forming part and constitutional detail.Wherein running gate system and forming part are and plastics
Direct contact portion, and change with plastics and product, it is most complicated, change maximum, it is desirable to process finish and essence in mold
Spend highest part.Running gate system refer to plastics from nozzle enter die cavity before runner section, including sprue, cold slug well, point
Runner and cast gate etc..Forming part refers to the various parts for constituting article shape, including dynamic model, cover half and die cavity, core, shaping
Bar and exhaust outlet etc..
Plastic beveled wheel is more widely used in as beaten because of its excellent building-up property and having self-lubricating property
The machine driving occasion of print machine, duplicator or other office electric equipments；As shown in figure 1, one of which plastic beveled wheel
Sectional structure chart.But plastic beveled wheel is because its shape is special, it is impossible to using simply die sinking mode by helical gear from mould
It is middle to release.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of rotation stripping mechanism of gear injection mold, can be by
Helical gear is released from mould, simple in construction.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is as follows：
Determine that plastic must turn over an angle in the demoulding by helical gear property, otherwise tooth form will be destroyed.
So-called rotating stripping demoulding refers to when plastic is separated with die cavity (core), due to plastic component structure the need for must have one with die cavity (core)
The motion rotated against, this motion is exactly rotating stripping demoulding motion.
A kind of rotation stripping mechanism of gear injection mold, including dynamic model small-sized core and zanjon bearing, the zanjon bearing
It is set on the outside of cavity block, the cavity block is arranged in cover half main core, the cavity block lower end sets dynamic model master
The dynamic model small-sized core is provided with core, the dynamic model main core.
Further, the cavity block is set with the cover half main core gap, and the cavity block passes through the depth
The relatively described cover half main core of ditch bearing is rotated against.
Further, the cavity block inner surface is the smooth surface by polishing.
Further, the guide hole added with releasing agent is set in the cavity block.
Further, the multiple cavity blocks of correspondence are respectively arranged between rotation stripping mechanism, the rotation stripping mechanism
It is separate.
Using above-mentioned technical proposal, compared with gear rotation stripping mechanism, it the advantage is that：
(1) mould structure is simplified, complicated gear mechanism is simplified to a bearing, but function is constant；So do
Both cost is reduced, mould structure is in turn simplify so that the manufacturing process of mould simplifies.
(2) avoid and interfere, simplify ejecting mechanism.
Brief description of the drawings
Fig. 1 is plastic gear sectional structure chart of the present utility model；
Fig. 2 is rotating stripping demoulding structure sectional structure chart of the present utility model；
Fig. 3 is injection mold top view of the present utility model；
In figure, 10- die cavities, 20- dynamic model main cores, 30- cover half main cores, 40- zanjon bearings, 50- dynamic model small-sized cores.
Embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.Herein it should be noted that
Explanation for these embodiments is used to help understand the utility model, but does not constitute to restriction of the present utility model.This
Outside, as long as technical characteristic involved in each embodiment of the utility model disclosed below does not constitute conflict each other
It can just be mutually combined.
As shown in Fig. 2 a kind of rotation stripping mechanism of gear injection mold, including dynamic model small-sized core 50 and zanjon bearing
40, the zanjon bearing 40 is set in the outside of cavity block 10, and the cavity block 10 is arranged in cover half main core 30, described
The lower end of cavity block 10 sets in dynamic model main core 20, the dynamic model main core 20 and is provided with the dynamic model small-sized core 50.
When being opened from A-A die joints, gear plastic can be wrapped tightly in dynamic model small-sized core 50 in the presence of package power
On so that gear plastic departs from cover half together with dynamic model, and at this moment gear plastic and dynamic model main core 20 and dynamic model small-sized core 50 be all
Do not rotate, only downward die sinking campaign.But plastic helical gear is during die sinking, there can be a circumference to cavity block 10
The component in direction, this component causes cavity block 10 to have the trend of a rotation, in order that cavity block 10 rotates, in die cavity
Insert 10 is outer to lay a deep groove ball bearing 40, facilitates die cavity to rotate.When mould is smoothly molded, gear plastic is deviate from from die cavity
When, it is possible to gear plastic is released from dynamic model small-sized core 50 with push rod, a cyclic process is completed.
Wherein, the cavity block 10 is set with the gap of cover half main core 30, and the cavity block 10 is by described
The relatively described cover half main core 30 of zanjon bearing 40 is rotated against.
Can gear plastic smoothly be stripped the package power for the dynamic model small-sized core 50 that places one's entire reliance upon, because of the surface of dynamic model small-sized core 50
Product it is too small there is provided package power can not meet the demoulding require.
Wherein, the inner surface of cavity block 10 is the smooth surface by polishing.
Wherein, the guide hole added with releasing agent is set in the cavity block 10.
By adding releasing agent to cavity block 10 or setting smooth surface so that dynamic model small-sized core 50 is packed tightly
Power meets the demoulding and required.
Preferably, the multiple cavity blocks of correspondence are respectively arranged with phase between rotation stripping mechanism, the rotation stripping mechanism
It is mutually independent.As shown in figure 3,4 cavity blocks are provided with simultaneously, four gear plastics of one-shot forming.
Embodiment of the present utility model is explained in detail above in association with accompanying drawing, but the utility model is not limited to be retouched
The embodiment stated.For a person skilled in the art, it is right in the case where not departing from the utility model principle and spirit
These embodiments carry out a variety of change, modification, replacement and modification, still fall within protection domain of the present utility model.
Claims (5)
1. a kind of rotation stripping mechanism of gear injection mold, it is characterised in that：It is described including dynamic model small-sized core and zanjon bearing
Zanjon bearing is set on the outside of cavity block, and the cavity block is arranged in cover half main core, and the cavity block lower end is set
Put in dynamic model main core, the dynamic model main core and be provided with the dynamic model small-sized core.
2. a kind of rotation stripping mechanism of gear injection mold according to claim 1, it is characterised in that：The die cavity edge
Block is set with the cover half main core gap, and the cavity block is relative by the relatively described cover half main core of the zanjon bearing
Rotation.
3. a kind of rotation stripping mechanism of gear injection mold according to claim 2, it is characterised in that：The die cavity edge
Block inner surface is the smooth surface by polishing.
4. a kind of rotation stripping mechanism of gear injection mold according to claim 2, it is characterised in that：The die cavity edge
Guide hole added with releasing agent is set in block.
5. a kind of rotation stripping mechanism of gear injection mold according to claim 2, it is characterised in that：The multiple types of correspondence
Cavity insert is respectively arranged with separate between rotation stripping mechanism, the rotation stripping mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621324279.XU CN206357581U (en) | 2016-12-05 | 2016-12-05 | A kind of rotation stripping mechanism of gear injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621324279.XU CN206357581U (en) | 2016-12-05 | 2016-12-05 | A kind of rotation stripping mechanism of gear injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206357581U true CN206357581U (en) | 2017-07-28 |
Family
ID=59372406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621324279.XU Expired - Fee Related CN206357581U (en) | 2016-12-05 | 2016-12-05 | A kind of rotation stripping mechanism of gear injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206357581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108081552A (en) * | 2017-12-22 | 2018-05-29 | 骏伟塑胶制品（太仓）有限公司 | A kind of teeth plastic wheel injection mold |
-
2016
- 2016-12-05 CN CN201621324279.XU patent/CN206357581U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108081552A (en) * | 2017-12-22 | 2018-05-29 | 骏伟塑胶制品（太仓）有限公司 | A kind of teeth plastic wheel injection mold |
| CN108081552B (en) * | 2017-12-22 | 2023-11-10 | 江苏骏伟精密部件科技股份有限公司 | Plastic gear 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 |
Granted publication date: 20170728 Termination date: 20181205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |