CN202691038U - Sealing ring - Google Patents
Sealing ring Download PDFInfo
- Publication number
- CN202691038U CN202691038U CN 201220263552 CN201220263552U CN202691038U CN 202691038 U CN202691038 U CN 202691038U CN 201220263552 CN201220263552 CN 201220263552 CN 201220263552 U CN201220263552 U CN 201220263552U CN 202691038 U CN202691038 U CN 202691038U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- ring body
- injection
- sealing ring
- injection moulding
- 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
A sealing ring comprises a sealing ring body made of elastic materials. A cutting port is arranged on the sealing ring body, and an overlapping slope is arranged on a port portion of the cutting port of the sealing ring body. The sealing ring relates to the technical field of material storing type injection molding machine, is particularly used for slinging sealing between injection molding pistons and injection molding cylinders and is simple in structure, reliable in work and capable of reducing manufacturing, using and maintaining difficulties and cost of an injection molding machine.
Description
Technical field
The utility model relates to storing type injection machine technical field, especially relates to a kind of seal ring for slipper seal between injection moulding piston and the injection cylinder.
Background technique
The storing type plastic-injection moulding machine, at first in preformed mechanism, the plastic raw material melting is become the slurry of moulding that is easy to flow, moulding slurry is stored in the cylinder of getting the raw materials ready, be stored in slurry injects injection cylinder before injection moulding the storing area of moulding in the cylinder of getting the raw materials ready, then by the injection moulding piston slurry of moulding in the injection cylinder delivered in the injection mould by injection-moulding nozzle.The storing type plastic-injection moulding machine is provided with preformed mechanism, has advantages of that speed of production is fast, efficient is high, good product quality.
Injection moulding piston and injection cylinder slipper seal cooperate.Mostly adopt at present injection moulding piston side and the slipper seal of injection cylinder surface integral formula to cooperate, so very high requirement has been proposed all for linear expansion coefficient difference, injection moulding piston and the injection cylinder slippage sealing of elastoplastic in relative motion dust seal matching gap of injection moulding piston and injection cylinder and the form and position tolerance that adds man-hour etc., in case locking and can't working between injection moulding piston and the injection cylinder has so just increased the manufacturing of injection moulding machine and difficulty and the cost of working service greatly.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of seal ring that can be used for slipper seal between injection moulding piston and the injection cylinder.
The used technological scheme of the utility model is: a kind of seal ring, comprise the seal ring body of being made by elastic material, and the seal ring body is provided with and cuts off mouth, and the seal ring body cuts off a mouthful oral area and is provided with the lapping inclined-plane.
The utility model, described seal ring is a trip ring under free state, the inner ring of seal ring is stuck in the set draw-in groove in piston side during use, the outer ring of seal ring is close to the surface of injection cylinder, the lapping inclined-plane lapping of seal ring body cut-out mouthful oral area together, the axis projection of seal ring is a complete annulus, can guarantee like this to mould slurry and can not flow out along side and the gap between the injection cylinder of injection moulding piston when injection moulding.Because described seal ring is trip ring, utilize its elasticity can make the outer ring of seal ring be close to all the time injection cylinder and show, therefore the reliability of sealing is very high.Because moulding slurry when adopting described seal ring reliably to prevent injection moulding between injection moulding piston side and injection cylinder surface flows out along side and the gap between the injection cylinder of injection moulding piston, therefore the matching gap value between injection moulding piston and the injection cylinder can be suitably larger than the matching gap value that adopts injection moulding piston side and injection cylinder surface integral formula slipper seal structure, like this can appropriateness reduce the linear expansion coefficient difference to injection moulding piston and injection cylinder, injection moulding piston and injection cylinder slippage sealing of elastoplastic in relative motion dust seal matching gap and add the requirement of the form and position tolerance in man-hour, thus the manufacturing of injection moulding machine and difficulty and the cost of working service can be reduced.
As preferably, the seal ring body cuts off a mouthful oral area wedge angle rounding.This preferred version can prevent that the seal ring body from cutting off a mouthful oral area wedge angle scratch injection cylinder surface, improves the operational safety of corresponding part.
As preferably, the number of degrees of the inclined angle alpha on lapping inclined-plane are 30
0To 40
0This preferred version, lapping position intensity is high, and good reliability is good to gap compensating for variations adaptability.
As preferably, described seal ring body is made by the 65Mn Spring Steel Band.This preferred version, material source is extensive, and easy processing is conducive to reduce material and manufacture cost.
The beneficial effect that the utility model brings is: the described seal ring of employing is realized the slippage sealing of elastoplastic in relative motion dust seal between injection moulding piston and the injection cylinder between injection moulding piston side and injection cylinder surface, moulding slurry when preventing injection moulding flows out along side and the gap between the injection cylinder of injection moulding piston, reliable operation can reduce the manufacturing of injection moulding machine and difficulty and the cost of working service.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is that the seal ring body cuts off mouthful set lapping ramp structure of an oral area schematic diagram;
Fig. 4 is the utility model structural representation that the lapping inclined-plane overlaps when assembling;
Fig. 5 is the left view of Fig. 4.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Such as Fig. 1, Fig. 2, shown in Figure 3, the utility model comprises the seal ring body 1 of being made by elastic material 65Mn Spring Steel Band, seal ring body 1 is provided with and cuts off mouth, seal ring body 1 cuts off a mouthful oral area and is provided with lapping inclined-plane 1.1, seal ring body 1 cuts off a mouthful oral area wedge angle rounding 1.2, and the number of degrees of the inclined angle alpha on lapping inclined-plane 2 are 30
0To 40
0, for example 35
0As shown in Figure 1, the utility model is trip ring under free state.In use, the inner ring of seal ring is stuck in the set draw-in groove in piston side, the outer ring of seal ring is close to the surface of injection cylinder, and the lapping inclined-plane lapping that the seal ring body cuts off mouthful oral area together (such as Fig. 4, shown in Figure 5), the axis projection of seal ring is a complete annulus.The described seal ring of employing is realized the slippage sealing of elastoplastic in relative motion dust seal between injection moulding piston and the injection cylinder between injection moulding piston side and injection cylinder surface, moulding slurry in the time of can preventing injection moulding reliably flows out along side and the gap between the injection cylinder of injection moulding piston, the matching gap that matching gap between injection moulding piston and the injection cylinder can cooperate greater than injection moulding piston side and the slipper seal of injection cylinder surface integral formula of routine, so just can reduce the linear expansion coefficient difference to injection moulding piston and injection cylinder, injection moulding piston and injection cylinder slippage sealing of elastoplastic in relative motion dust seal matching gap and add the requirement of the form and position tolerance in man-hour, thus the manufacturing of injection moulding machine and difficulty and the cost of working service can be reduced.
The specific embodiment of the above only is the better mode of execution of the utility model, is not to limit implementation scope of the present utility model with this.The equivalence that all shapes according to the utility model, structure are done changes and ought to all be included in the protection domain of the present utility model.
Claims (4)
1. a seal ring comprises the seal ring body (1) of being made by elastic material, and seal ring body (1) is provided with and cuts off mouth, it is characterized in that: seal ring body (1) cuts off a mouthful oral area and is provided with lapping inclined-plane (1.1).
2. seal ring according to claim 1 is characterized in that: seal ring body (a 1) cut-out mouthful oral area wedge angle rounding (1.2).
3. seal ring according to claim 1, it is characterized in that: the number of degrees of the inclined angle alpha of lapping inclined-plane (2) are 30
0To 40
0
4. according to claim 1 and 2 or 3 or 4 described seal rings, it is characterized in that: described seal ring body (1) is made by the 65Mn Spring Steel Band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220263552 CN202691038U (en) | 2012-06-06 | 2012-06-06 | Sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220263552 CN202691038U (en) | 2012-06-06 | 2012-06-06 | Sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202691038U true CN202691038U (en) | 2013-01-23 |
Family
ID=47546662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220263552 Expired - Fee Related CN202691038U (en) | 2012-06-06 | 2012-06-06 | Sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202691038U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104821462A (en) * | 2015-04-17 | 2015-08-05 | 中航光电科技股份有限公司 | Sealing ring and sealing assembly and cable connector which use the sealing ring |
| CN105650281A (en) * | 2016-03-12 | 2016-06-08 | 哈电集团哈尔滨电站阀门有限公司 | Graphite-metal combined sealing ring |
-
2012
- 2012-06-06 CN CN 201220263552 patent/CN202691038U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104821462A (en) * | 2015-04-17 | 2015-08-05 | 中航光电科技股份有限公司 | Sealing ring and sealing assembly and cable connector which use the sealing ring |
| CN105650281A (en) * | 2016-03-12 | 2016-06-08 | 哈电集团哈尔滨电站阀门有限公司 | Graphite-metal combined sealing ring |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20170606 |