CN202137873U - Mould for half-exposed framework type oil seal - Google Patents
Mould for half-exposed framework type oil seal Download PDFInfo
- Publication number
- CN202137873U CN202137873U CN201120197058U CN201120197058U CN202137873U CN 202137873 U CN202137873 U CN 202137873U CN 201120197058 U CN201120197058 U CN 201120197058U CN 201120197058 U CN201120197058 U CN 201120197058U CN 202137873 U CN202137873 U CN 202137873U
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- Prior art keywords
- mould
- skeleton
- utility
- model
- type oil
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- 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 - Lifetime
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- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000011159 matrix material Substances 0.000 claims description 9
- 238000012797 qualification Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 239000012790 adhesive layer Substances 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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Abstract
The utility model discloses a mould for half-exposed framework type oil seal, comprising a core mould, an upper mould and a lower mould; a framework is set among the core mould, the upper mould and the lower mould; the lower mould and the inner surface of the framework are in clearance fit way; the upper mould and the outer surface of the framework are in interference fit way, and the sealing surface of the upper mould at the contact corner is extended by 1.2-1.5 mm. The beneficial effects of the utility model are as follows: the utility model can better solve the phenomena namely adhesive leakage of outer edge of half-exposed framework type oil seal, scratch of framework and striping of adhesive layer; the utility model largely raises the qualification rate of the product.
Description
Technical field
The utility model relates to a kind of mould, particularly a kind of mould that partly exposes the matrix type oil sealing.
Background technology
Because traditional oil sealing mould structure is shown in Fig. 1-3: reach sealing through patrix 2 and skeleton 4 outer surface interference fit; Reach sealing through interference fit on counterdie 3 and the skeleton 4 corner height; These two kinds of mould structures be prone to when sulfuration is produced that glue appears leaking in exposed parts at skeleton 4, skeleton 4 impressions are serious and get rusty, defective such as A place sizing material layer is stripped from, make product percent of pass very low.
Summary of the invention
The goal of the invention of the utility model is: a kind of novel mould that partly exposes the matrix type oil sealing is provided, to overcome the problem that exists in the above-mentioned prior art.
The technical scheme that the utility model adopts is such: a kind of mould that partly exposes the matrix type oil sealing; Comprise core, upper die and lower die; Between said core, the upper die and lower die skeleton is arranged; Said counterdie and skeleton inner surface are matched in clearance, and the outer surface of said patrix and skeleton is an interference fit, and the sealing surface of corner's patrix of contact extends 1.2-1.5mm.
As optimal way, said counterdie and skeleton inner surface are the matched in clearance of 0.05mm, and the outer surface of said patrix and skeleton is the interference fit of 0.05mm.
In sum, owing to adopted technique scheme, the beneficial effect of the utility model is: can solve the phenomenon that the leakage glue, skeleton scratch, the glue-line that partly expose matrix type oil sealing outer part is stripped from well, improve the qualification rate of product greatly.
Description of drawings
Fig. 1 is the structural representation that partly exposes the matrix type oil sealing.
Fig. 2 is the enlarged drawing of circle part among Fig. 1.
Fig. 3 is the enlarged drawing at A place among Fig. 2.
Fig. 4 is the enlarged drawing after the A place architecture advances.
Mark among the figure: 1 is core, and 2 is patrix, and 3 is counterdie, and 4 is skeleton, and 5 is the outer glue-line, and 6 is rubber.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Like Fig. 1,2, shown in 4; A kind of mould that partly exposes the matrix type oil sealing comprises core 1, patrix 2 and counterdie 3, between said core 1, patrix 2 and the counterdie 3 skeleton 4 is arranged; Said counterdie 3 is a matched in clearance with skeleton 4 inner surfaces; Said patrix 2 is an interference fit with the outer surface of skeleton 4, and the sealing surface of corner's patrix 2 of contact extension 1.2-1.5mm, sees A4 place among Fig. 4.
Said counterdie 3 is the matched in clearance of 0.05mm with skeleton 4 inner surfaces, and said patrix 2 is the interference fit of 0.05mm with the outer surface of skeleton 4, sees A2 among Fig. 4, A1 place respectively.
The sealed width at A3 place is 1mm among Fig. 4.
The interference fit at A1 place prevents mainly that sizing material from overflowing from this and causes leakage glue.
The matched in clearance at A2 place mainly is that skeleton 4 can produce elastic deformation when skeleton 4 outside interference, can be with skeleton 4 outside scratches when ejecting product, and skeleton 4 can not be bonded at counterdie 3 yet simultaneously, is convenient to pickup.
The sealing surface at A3 place guarantees that skeleton 4 and patrix 2 have certain contact width, the sealing better effects if.
The sealing surface at A4 place extends, and mainly is the distance that increases patrix 2 and skeleton 4 corners, thereby makes A place glue-line thickening, and when product ejected, glue-line can produce good elastic deformation, so can glue-line not peeled off.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (2)
- One and half expose the matrix type oil sealing mould; Comprise core (1), patrix (2) and counterdie (3); Between said core (1), patrix (2) and the counterdie (3) skeleton (4) is arranged; It is characterized in that: said counterdie (3) is a matched in clearance with skeleton (4) inner surface, and said patrix (2) is an interference fit with the outer surface of skeleton (4), and the sealing surface of corner's patrix (2) of contact extends 1.2-1.5mm.
- 2. a kind of mould that partly exposes the matrix type oil sealing according to claim 1; It is characterized in that: said counterdie (3) is the matched in clearance of 0.05mm with skeleton (4) inner surface, and said patrix (2) is the interference fit of 0.05mm with the outer surface of skeleton (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120197058U CN202137873U (en) | 2011-06-13 | 2011-06-13 | Mould for half-exposed framework type oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120197058U CN202137873U (en) | 2011-06-13 | 2011-06-13 | Mould for half-exposed framework type oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202137873U true CN202137873U (en) | 2012-02-08 |
Family
ID=45548949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120197058U Expired - Lifetime CN202137873U (en) | 2011-06-13 | 2011-06-13 | Mould for half-exposed framework type oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202137873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171977A (en) * | 2015-08-27 | 2015-12-23 | 成都盛帮密封件股份有限公司 | Semi-encapsulated oil sealing die and vulcanizing production process |
-
2011
- 2011-06-13 CN CN201120197058U patent/CN202137873U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171977A (en) * | 2015-08-27 | 2015-12-23 | 成都盛帮密封件股份有限公司 | Semi-encapsulated oil sealing die and vulcanizing production process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120208 |
|
| CX01 | Expiry of patent term |