CN204842925U - Gear structure of loosing core - Google Patents
Gear structure of loosing core Download PDFInfo
- Publication number
- CN204842925U CN204842925U CN201520560601.8U CN201520560601U CN204842925U CN 204842925 U CN204842925 U CN 204842925U CN 201520560601 U CN201520560601 U CN 201520560601U CN 204842925 U CN204842925 U CN 204842925U
- Authority
- CN
- China
- Prior art keywords
- core
- tooth bar
- circular arc
- initiatively
- loosing 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 gear structure of loosing core, it is good to aim at providing a stability, can be in stable application in succession under the prerequisite of guaranteeing casting pressure, make the arc structure gear structure of loosing core of demolding smoothly of loosing core. It sets up the convex guide slot on the mould including convex core, the arc of slidable setting in the convex guide slot rack of loosing core, the drive gear of rotatable setting on the mould, the rack and set up be used for driving the driving oil cylinder of rack removal of initiatively loosing core on the mould of initiatively loosing core, the one end of core is connected with the one end of the convex rack of loosing core, drive gear is located loose core rack and initiatively loosing core between the rack of arc, drive gear and the arc toothed bar mesh of loosing core, initiatively loose core rack and transmission gear meshing.
Description
Technical field
The utility model relates to mould core pulling mechanism, is specifically related to a kind of gear core pulling structure.
Background technology
A large amount of mould used at present, due to the relation of product structure, many moulds are all provided with core-pulling mechanism, to meet the needs of product structure.Core-drawing hole in common pulled core structure is generally straight hole, its can directly by cylinder or oil cylinder flexible come the process of loosing core of core.Its structure simpler production of common pulled core structure is convenient; But for the core-drawing hole of arc, because it cannot vertically directly be loosed core, thus common pulled core structure cannot be adopted.
The dynamics of loosing core that the pulled core structure arranged for this type of arc core-pulling hole at present exists usually is little, stability is not good, easily damages the problem of core in the process of loosing core; This cause at present for the foundry goods in this type of arc core-pulling hole after employing high-pressure casting, it easily occurs that in the process of loosing core arc-shaped core pulling structure cannot depanning smoothly, and the problem of easy damage core.Be at present reduce casting pressure to address this problem common way, but so easily produce again casting quality and reduce, compactness is general, there is a series of foundry goods practicality problems that affect such as shrinkage cavity and exists.
Utility model content
The purpose of this utility model is to overcome deficiency of the prior art, provides a kind of good stability, can the application of continous-stable under the prerequisite ensureing casting pressure, enables the gear core pulling structure of arc-shaped core pulling structure depanning smoothly.
The technical solution of the utility model is:
A kind of gear core pulling structure, comprise the core of circular arc, be arranged on the circular arc guide groove on mould, the circular arc be slidably arranged in circular arc guide groove is loosed core tooth bar, rotatably be arranged on the travelling gear on mould, the tooth bar and being arranged on mould for driving the driving oil cylinder of tooth bar movement of initiatively loosing core of initiatively loosing core; Loose core one end of tooth bar of one end and the circular arc of described core is connected, described travelling gear to be loosed core tooth bar and initiatively loosing core between tooth bar in circular arc, described travelling gear and circular arc tooth bar of loosing core is meshed, and described tooth bar of initiatively loosing core is meshed with travelling gear.
The good stability of this programme gear core pulling structure, can the application of continous-stable under the prerequisite ensureing casting pressure (high-pressure casting), enables the depanning smoothly of arc-shaped core pulling structure; It is greatly convenient to serve for this series products of production, improves production efficiency.On the other hand, owing to ensureing casting pressure, effectively can solve the casting quality caused because casting pressure is not enough like this and reduce, compactness is general, has that shrinkage cavity etc. is a series of affects foundry goods practicality problem.
As preferably, mould is provided with arc link slot, and one end of this arc link slot is connected with one end of circular arc guide groove, and the other end of arc link slot is communicated with mold cavity, and one end of described core is connected through arc link slot and circular arc tooth bar of loosing core.
As preferably, mould is provided with pilot hole, and described tooth bar of initiatively loosing core slidably is arranged in pilot hole.
As preferably, loose core one end of tooth bar of circular arc is provided with dovetail groove, and one end of core is provided with the dovetails with dovetail groove adaptation, and this dovetails is embedded in dovetail groove.
As preferably, circular arc guide groove, travelling gear, initiatively to loose core tooth bar and drive oil cylinder to be arranged on dynamic model.
The beneficial effects of the utility model are: good stability, can the application of continous-stable under the prerequisite ensureing casting pressure (high-pressure casting), enable the depanning smoothly of arc-shaped core pulling structure; It is greatly convenient to serve for this series products of production, improves production efficiency.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of gear core pulling structure of the present utility model.
In figure: mould 1, drive oil cylinder 2, tooth bar 3 of initiatively loosing core, core 4, circular arc is loosed core tooth bar 5, circular arc guide groove 6, travelling gear 7.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is described in further detail:
As shown in Figure 1, a kind of gear core pulling structure comprises the core 4 of circular arc, be arranged on the circular arc guide groove 6 on mould 1, the circular arc be slidably arranged in circular arc guide groove is loosed core tooth bar 5, rotatably be arranged on the travelling gear 7 on mould, the tooth bar 3 and being arranged on mould for driving the driving oil cylinder 2 of tooth bar movement of initiatively loosing core of initiatively loosing core.The telescopic direction of oil cylinder is driven to parallel with tooth bar of initiatively loosing core.Mould is provided with pilot hole.Tooth bar of initiatively loosing core slidably is arranged in pilot hole.In the present embodiment, circular arc guide groove, travelling gear, initiatively loose core tooth bar and drive oil cylinder be arranged on dynamic model.
Mould is provided with arc link slot.One end of this arc link slot is connected with one end of circular arc guide groove, and the other end of arc link slot is communicated with mold cavity.Loose core one end of tooth bar of one end and the circular arc of core is connected, and specifically, one end of core is connected through the loose core end of tooth bar of arc link slot and circular arc.Loose core one end of tooth bar of circular arc is provided with dovetail groove, and one end of core is provided with the dovetails with dovetail groove adaptation, and this dovetails is embedded in dovetail groove.
Travelling gear to be loosed core tooth bar and initiatively loosing core between tooth bar in circular arc.Travelling gear and circular arc tooth bar of loosing core is meshed.Tooth bar of initiatively loosing core is meshed with travelling gear.
As follows in the specific works process of the gear core pulling structure of the present embodiment:
By driving oil cylinder to drive tooth bar of initiatively loosing core to move, rack drives of initiatively loosing core travelling gear rotates, and then drives circular arc to loose core tooth bar along the rotation of circular arc guide groove, thus drives the smooth depanning of core.
Claims (5)
1. a gear core pulling structure, comprise the core of circular arc, it is characterized in that, also comprise the circular arc guide groove be arranged on mould, the circular arc be slidably arranged in circular arc guide groove is loosed core tooth bar, rotatably be arranged on the travelling gear on mould, the tooth bar and being arranged on mould for driving the driving oil cylinder of tooth bar movement of initiatively loosing core of initiatively loosing core; Loose core one end of tooth bar of one end and the circular arc of described core is connected, described travelling gear to be loosed core tooth bar and initiatively loosing core between tooth bar in circular arc, described travelling gear and circular arc tooth bar of loosing core is meshed, and described tooth bar of initiatively loosing core is meshed with travelling gear.
2. a kind of gear core pulling structure according to claim 1, it is characterized in that, described mould is provided with arc link slot, one end of this arc link slot is connected with one end of circular arc guide groove, the other end of arc link slot is communicated with mold cavity, and one end of described core is connected through arc link slot and circular arc tooth bar of loosing core.
3. a kind of gear core pulling structure according to claim 1, is characterized in that, described mould is provided with pilot hole, and described tooth bar of initiatively loosing core slidably is arranged in pilot hole.
4. a kind of gear core pulling structure according to claim 1 or 2 or 3, is characterized in that, loose core one end of tooth bar of described circular arc is provided with dovetail groove, and one end of core is provided with the dovetails with dovetail groove adaptation, and this dovetails is embedded in dovetail groove.
5. a kind of gear core pulling structure according to claim 1 or 2 or 3, is characterized in that, described circular arc guide groove, travelling gear, initiatively loose core tooth bar and drive oil cylinder be arranged on dynamic model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520560601.8U CN204842925U (en) | 2015-07-29 | 2015-07-29 | Gear structure of loosing core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520560601.8U CN204842925U (en) | 2015-07-29 | 2015-07-29 | Gear structure of loosing core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204842925U true CN204842925U (en) | 2015-12-09 |
Family
ID=54733522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520560601.8U Expired - Fee Related CN204842925U (en) | 2015-07-29 | 2015-07-29 | Gear structure of loosing core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204842925U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499534A (en) * | 2015-12-10 | 2016-04-20 | 重庆慧团商贸有限公司 | Movable mould core capable of realizing drawing out arc-shaped hole |
| CN105500646A (en) * | 2016-01-25 | 2016-04-20 | 中山市利群精密实业有限公司 | Arc-shaped slide core-pulling mechanism for plastic mould |
-
2015
- 2015-07-29 CN CN201520560601.8U patent/CN204842925U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499534A (en) * | 2015-12-10 | 2016-04-20 | 重庆慧团商贸有限公司 | Movable mould core capable of realizing drawing out arc-shaped hole |
| CN105500646A (en) * | 2016-01-25 | 2016-04-20 | 中山市利群精密实业有限公司 | Arc-shaped slide core-pulling mechanism for plastic mould |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20190729 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |