CN201626087U - Front cylinder cover leakproof structure of injection molding machine - Google Patents
Front cylinder cover leakproof structure of injection molding machine Download PDFInfo
- Publication number
- CN201626087U CN201626087U CN2009202826114U CN200920282611U CN201626087U CN 201626087 U CN201626087 U CN 201626087U CN 2009202826114 U CN2009202826114 U CN 2009202826114U CN 200920282611 U CN200920282611 U CN 200920282611U CN 201626087 U CN201626087 U CN 201626087U
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- China
- Prior art keywords
- groove
- oil cylinder
- cylinder
- front cover
- cylinder protecgulum
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- Expired - Fee Related
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- Actuator (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a front cylinder cover leakproof structure of an injection molding machine and comprises a front cover (1) of the cylinder, an O-shaped ring (2) and a dust ring (4), wherein the front cover (1) of the cylinder and the O-shaped ring (2) are matched with one end of a cylinder (7), the piston rod (6) of the cylinder (7) passes through the front cover (1) of the cylinder, and the left circular bead of the front cover (1) of the cylinder is provided with a first groove (1-1); the O-shaped ring (2) is installed in the first groove (1-1), the inner wall of the front cover (1) of the cylinder is provided with a second groove (1-2) in which a first seal ring (3) is arranged, the inner wall of the front cover (1) of the cylinder is provided with a third groove (1-3), a second seal ring (3') is arranged in the third groove (1-3), a fourth groove (1-4) is arranged between the third groove (1-3) of the front cover (1) of the cylinder and the right end surface of the front cover (1) of the cylinder, and the dust ring (4) is installed in the fourth groove (1-4). The structure adopts double sealing, the dust ring is directly installed in the front cover of the cylinder, and thus the sealing property of the front cover of the cylinder is improved.
Description
Technical field
The utility model relates to a kind of injection machine front end housing hermetically-sealed construction, is mainly used in the injection machine sealed cylinder, plays the effect of sealed hydraulic oil, belongs to the injection moulding field.
Background technology
Injection machine oil cylinder front end housing hermetically-sealed construction before improving as shown in Figure 1, injection machine oil cylinder protecgulum all is only with a sealing ring, and dustproof gland and the oil cylinder protecgulum of dress dust ring be separate and adopt screw to be connected dustproof gland and oil cylinder protecgulum, increased the probability of leaking, sealing effectiveness is not fine.。
Summary of the invention
The purpose of this utility model is the deficiency that overcomes prior art, and a kind of sealing property injection machine front end housing hermetically-sealed construction preferably is provided, and to reduce the leakage of hydraulic oil, reduces production costs.
The technical scheme that realizes above-mentioned purpose is: a kind of injection machine front end housing hermetically-sealed construction, comprise the oil cylinder protecgulum and " O " type circle that cooperate with oil cylinder one end, dust ring, the piston rod of oil cylinder passes the oil cylinder protecgulum, oil cylinder protecgulum left side shoulder is provided with first groove, " O " type circle is installed in this first groove, oil cylinder protecgulum inwall is provided with second groove, and in this second groove, first sealing ring is installed, also have the 3rd groove on the oil cylinder protecgulum inwall, and second sealing ring is installed in the 3rd groove, have the 4th groove between the 3rd groove of oil cylinder protecgulum and oil cylinder protecgulum right side, dust ring is installed in the 4th groove.
After adopting technique scheme, have the 3rd groove on original oil cylinder protecgulum inwall, and in the 3rd groove second sealing ring is installed, first sealing ring and second sealing ring have just formed double containment; Dustproof gland and oil cylinder protecgulum are made into an integral body in this mechanism, between the 3rd groove of oil cylinder protecgulum and oil cylinder protecgulum right side, have the 4th groove, dust ring is directly installed in the 4th groove, so just strengthened the sealing of oil cylinder front end housing, the probability of the leakage of oil plant is reduced, only be connected the problem that causes sealing effectiveness bad with oil cylinder protecgulum separation employing screw with a sealing ring and dustproof gland thereby solved injection machine oil cylinder protecgulum.
Description of drawings
Fig. 1 looks cross-sectional view for injection machine front end housing hermetically-sealed construction improves preceding master;
Fig. 2 looks cross-sectional view for master of the present utility model;
Fig. 3 is an oil cylinder front-cover structure schematic diagram of the present utility model;
Fig. 4 is " oil cylinder protecgulum " of the present utility model A-A cutaway view.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
Shown in Fig. 2～4, a kind of injection machine front end housing hermetically-sealed construction, comprise the oil cylinder protecgulum 1 and " O " type circle 2 that cooperate with oil cylinder 7 one ends, dust ring 4, the piston rod 6 of oil cylinder 7 passes oil cylinder protecgulum 1, oil cylinder protecgulum 1 left side shoulder is provided with the first groove 1-1, " O " type circle 2 is installed in this first groove 1-1, oil cylinder protecgulum 1 inwall is provided with the second groove 1-2, and in this second groove 1-2, first sealing ring 3 is installed, install on first sealing ring, 3 left sides and porosely copper sheathing 8 to be installed with back-up ring 5 and on first sealing ring, 3 the right, also have the 3rd groove 1-3 on oil cylinder protecgulum 1 inwall, and in the 3rd groove 1-3, be equipped with second sealing ring 3 ', first sealing ring 3 of second groove and second sealing ring 3 in the 3rd groove ' just form double containment, have the 4th groove 1-4 between the 3rd groove 1-3 of oil cylinder protecgulum 1 and oil cylinder protecgulum 1 right side, dust ring 4 is installed in the 4th groove 1-4.
Operation principle of the present utility model is as follows:
When piston rod 6 moves with respect to oil cylinder protecgulum 1, because oil cylinder protecgulum 1 has the 3rd groove 1-3 on the inwall of original oil cylinder protecgulum 1, and in the 3rd groove 1-3, be equipped with second sealing ring 3 ', first sealing ring 3 of such second groove and second sealing ring 3 in the 3rd groove ' just form double containment, and dustproof gland and oil cylinder protecgulum 1 are made into an integral body, between the 3rd groove 1-3 of oil cylinder protecgulum 1 and oil cylinder protecgulum 1 right side, have the 4th groove 1-4, dust ring 4 is directly installed in the 4th groove 1-4, so just strengthen the sealing property of injection machine front end housing hermetically-sealed construction, the also corresponding reduction of the leakage probability of hydraulic oil.
This structure adopts double containment and dust ring 4 to be directly installed on the interior structure of the 4th groove 1-4 of oil cylinder protecgulum 1, and the sealing property of oil cylinder protecgulum is improved, and significantly reduces the leakage of hydraulic oil, has saved production cost.
Claims (1)
1. injection machine front end housing hermetically-sealed construction, comprise the oil cylinder protecgulum (1) and " O " type circle (2) that cooperate with oil cylinder (7) one ends, dust ring (4), the piston rod (6) of oil cylinder (7) passes oil cylinder protecgulum (1), oil cylinder protecgulum (1) left side shoulder is provided with first groove (1-1), " O " type circle (2) is installed in this first groove (1-1), oil cylinder protecgulum (1) inwall is provided with second groove (1-2), and in this second groove (1-2), first sealing ring (3) is installed, it is characterized in that: also have the 3rd groove (1-3) on oil cylinder protecgulum (1) inwall, and second sealing ring (3 ') is installed in the 3rd groove (1-3), have the 4th groove (1-4) between the 3rd groove (1-3) of oil cylinder protecgulum (1) and oil cylinder protecgulum (1) right side, dust ring (4) is installed in the 4th groove (1-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202826114U CN201626087U (en) | 2009-12-25 | 2009-12-25 | Front cylinder cover leakproof structure of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202826114U CN201626087U (en) | 2009-12-25 | 2009-12-25 | Front cylinder cover leakproof structure of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201626087U true CN201626087U (en) | 2010-11-10 |
Family
ID=43057473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202826114U Expired - Fee Related CN201626087U (en) | 2009-12-25 | 2009-12-25 | Front cylinder cover leakproof structure of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201626087U (en) |
-
2009
- 2009-12-25 CN CN2009202826114U patent/CN201626087U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20121225 |