CN206917966U - Anti-return cylinder structure - Google Patents
Anti-return cylinder structure Download PDFInfo
- Publication number
- CN206917966U CN206917966U CN201720843566.XU CN201720843566U CN206917966U CN 206917966 U CN206917966 U CN 206917966U CN 201720843566 U CN201720843566 U CN 201720843566U CN 206917966 U CN206917966 U CN 206917966U
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- China
- Prior art keywords
- oil pocket
- oil
- cylinder body
- piston
- cylinder
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Abstract
The utility model discloses a kind of anti-return cylinder structure, including cylinder body and the piston for being movably arranged at cylinder body internal cavity, cylinder body internal cavity is divided into front oil pocket and back oil pocket by the piston, the lateral surface that cylinder body is located at front oil pocket connects provided with the first oil connection with front oil pocket, the lateral surface that cylinder body corresponds to back oil pocket connects provided with the second oil connection with back oil pocket, the piston rod for stretching out cylinder body front end is connected with piston, one-way conduction valve is provided between second oil connection and back oil pocket, the one-way conduction valve closure when filling full oily in back oil pocket.The anti-return cylinder structure between the second oil connection and back oil pocket by being provided with one-way conduction valve, closed when filling full oily in back oil pocket to close oil inlet passage, prevent that oil stream is moved in cylinder body, pushing away oil cylinder piston by the pressure of hydraulic oil will not retreat, so that sliding block will not also retreat, to complete one-shot forming to part.Without increasing drilling processing procedure, so as to improve operating efficiency, increase output, reduce cost.
Description
Technical field
It the utility model is related to a kind of cylinder structure, more particularly to a kind of anti-return cylinder structure.
Background technology
Mold forming hole, which utilizes, before part need to use tunnel loose core pin during mould molding, and is positioned and extracted out by oil cylinder, press
Because oil cylinder can not withstand core pulling pin in casting, core pulling pin during die casting is caused to be given up the throne, just forming parts hole can not be molded completely, be needed
It could be completed in rear process increase drilling operating.
The content of the invention
In order to overcome drawbacks described above, the utility model, which provides one kind, makes the one-time formed anti-return in mold forming hole before part
Cylinder structure.
The utility model in order to solve its technical problem used by technical scheme be：A kind of anti-return cylinder structure, bag
Include cylinder body and be movably arranged at the piston of the cylinder body internal cavity, the cylinder body internal cavity is divided into front oil pocket with after by the piston
Oil pocket, the lateral surface that the cylinder body is located at the front oil pocket connect provided with the first oil connection with the front oil pocket, the cylinder
The lateral surface that body corresponds to the back oil pocket connects provided with the second oil connection with the back oil pocket, is connected with and stretches on the piston
Go out the piston rod of the cylinder body front end, one-way conduction valve is provided between second oil connection and the back oil pocket, when described
One-way conduction valve closure when filling is full oily in back oil pocket.
As further improvement of the utility model, be additionally provided with second cylinder connector oil pipe be communicated to it is described unidirectional
Conducting valve.
As further improvement of the utility model, the outer end of the piston rod is fixedly connected with sliding block by sliding block connecting rod
, forming hole slipper block loose core pin is fixed with the take-up housing, the end of the slipper block loose core pin corresponds to parts to be processed
Place hole to be drilled.
The beneficial effects of the utility model are：The anti-return cylinder structure passes through between the second oil connection and back oil pocket
Provided with one-way conduction valve, closed when filling full oily in back oil pocket to close oil inlet passage, prevent that oil stream is moved in cylinder body, passes through liquid
The pressure of force feed pushes away oil cylinder piston and will not retreated, so that sliding block will not also retreat, to complete one-shot forming to part.Need not
Increase drilling processing procedure, so as to improve operating efficiency, increase output, reduce cost.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model use state figure.
With reference to accompanying drawing, make the following instructions：
1 --- cylinder body；2 --- front oil pocket；
3 --- back oil pocket；4 --- the first cylinder connector；
5 --- the second oil connection；6 --- piston rod；
7 --- one-way conduction valve；8 --- oil pipe；
9 --- sliding block connecting rod；10 --- take-up housing；
11 --- slipper block loose core pin；12 --- part.
Embodiment
Below in conjunction with accompanying drawing, a preferred embodiment of the present utility model is elaborated.But guarantor of the present utility model
Shield scope is not limited to following embodiments, i.e., is made in every case with present utility model application the scope of the claims and description simple
Equivalent changes and modifications, all still belong within the utility model patent covering scope.
It is a kind of anti-return cylinder structure described in the utility model refering to Fig. 1-2, including cylinder body 1 and is movably arranged at institute
The piston of cylinder body internal cavity is stated, the cylinder body internal cavity is divided into front oil pocket 2 and back oil pocket 3, the cylinder body position by the piston
Connected in the lateral surface of the front oil pocket provided with the first oil connection 4 with the front oil pocket, the cylinder body corresponds to the rear oil
The lateral surface of chamber connects provided with the second oil connection 5 with the back oil pocket, is connected with the piston before stretching out the cylinder body
The piston rod 6 at end, one-way conduction valve (7) is provided between second oil connection and the back oil pocket, when in the back oil pocket
Filling one-way conduction valve closure when full oily.
Wherein, oil pipe 8 is additionally provided with second cylinder connector and is communicated to the one-way conduction valve；Outside the piston rod
End is fixedly connected with take-up housing 10 by sliding block connecting rod 9, and forming hole slipper block loose core pin 11, institute are fixed with the take-up housing
The end for stating slipper block loose core pin corresponds to the place hole to be drilled of parts to be processed 12.
When needing to be molded the hole of part 12 with loose core of oil cylinder, oil cylinder stroke switch is opened, the second oil pipe is first passed through and connects
Head oil-feed (the first oil connection is fuel-displaced), make to promote before cylinder body inner carrier is right, when piston shifts most front side onto, check valve closure is stifled
Firmly the second cylinder connector, prevent that oil stream is moved in cylinder body, will not now be retreated because the pressure of hydraulic oil pushes away oil cylinder piston, so as to
Sliding block will not also retreat, so as to complete one-shot forming to part.After formed product, oil cylinder stroke switch closure, the first oil
Cylinder joint oil-feed, one-way conduction valve are opened, and oil cylinder piston retreats, with this circulation work.
As can be seen here, the anti-return cylinder structure between the second oil connection and back oil pocket by being provided with one-way conduction
Valve, closed when filling full oily in back oil pocket to close oil inlet passage, prevent that oil stream is moved in cylinder body, pushed away by the pressure of hydraulic oil
Firmly oil cylinder piston will not retreat, so that sliding block will not also retreat, to complete one-shot forming to part.Without increasing drilling system
Journey, so as to improve operating efficiency, increase output, reduce cost.
Claims (3)
1. a kind of anti-return cylinder structure, including cylinder body (1) and the piston for being movably arranged at the cylinder body internal cavity, in the cylinder body
Cavity is divided into front oil pocket (2) and back oil pocket (3) by the piston, and the lateral surface that the cylinder body is located at the front oil pocket is provided with
First oil connection (4) connects with the front oil pocket, and the lateral surface that the cylinder body corresponds to the back oil pocket is provided with the second oil pipe
Joint (5) is connected with the back oil pocket, and the piston rod (6) for stretching out the cylinder body front end is connected with the piston, and its feature exists
In：One-way conduction valve (7) is provided between second oil connection and the back oil pocket, when filling full oily in the back oil pocket
The one-way conduction valve closure.
2. anti-return cylinder structure according to claim 1, it is characterised in that：Oil is additionally provided with second cylinder connector
Pipe (8) is communicated to the one-way conduction valve.
3. anti-return cylinder structure according to claim 1, it is characterised in that：The outer end of the piston rod is connected by sliding block
Extension bar (9) is fixedly connected with take-up housing (10), and forming hole slipper block loose core pin (11) is fixed with the take-up housing, and the sliding block is taken out
The end of core needle corresponds to the place hole to be drilled of parts to be processed (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720843566.XU CN206917966U (en) | 2017-07-12 | 2017-07-12 | Anti-return cylinder structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720843566.XU CN206917966U (en) | 2017-07-12 | 2017-07-12 | Anti-return cylinder structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206917966U true CN206917966U (en) | 2018-01-23 |
Family
ID=61347142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720843566.XU Active CN206917966U (en) | 2017-07-12 | 2017-07-12 | Anti-return cylinder structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206917966U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103420A (en) * | 2019-06-03 | 2019-08-09 | 常州密优精密模具有限公司 | Injection mold oil cylinder guide check valves device |
-
2017
- 2017-07-12 CN CN201720843566.XU patent/CN206917966U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103420A (en) * | 2019-06-03 | 2019-08-09 | 常州密优精密模具有限公司 | Injection mold oil cylinder guide check valves device |
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| GR01 | Patent grant |