CN202062601U - Sealing gasket die for high-pressure oil pump - Google Patents
Sealing gasket die for high-pressure oil pump Download PDFInfo
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- CN202062601U CN202062601U CN2011201647010U CN201120164701U CN202062601U CN 202062601 U CN202062601 U CN 202062601U CN 2011201647010 U CN2011201647010 U CN 2011201647010U CN 201120164701 U CN201120164701 U CN 201120164701U CN 202062601 U CN202062601 U CN 202062601U
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- die
- groove
- boss
- die cavity
- annular groove
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Abstract
The utility model discloses a sealing gasket die for a high-pressure oil pump. Opposite planes of an upper die and a lower die are provided with an opposite annular groove die cavity respectively; a boss is formed in a ring of the annular groove die cavity of the lower die; the peripheral shape of the boss is similar to the inner ring shape of the annular groove; the upper surface of the boss is a plane; a groove which is matched with the boss in the ring of the annular groove die cavity of the lower die is formed in a ring of the annular groove die cavity of the upper die; the lower bottom surface of the groove is a plane; and after the upper die and the lower die are closed, a certain gap is formed between the upper surface of the boss and the lower bottom surface of the groove. In the sealing gasket die, the boss and the groove which are matched with each other are formed between the lower die and the upper die, the boss of the lower die enters the groove of the upper die like a piston when the upper die is pressed downwardly towards the lower die, glue can be smoothly injected into the annular groove die cavity by the notch edge of the groove of the upper die, and residual glue can flow into the gap after the glue is filled into the die cavity and adheres to a framework. The boss of the lower die is matched with the groove of the upper die during die pressing, and the boss of the lower die and the groove of the upper die are structural pieces which have contribution to glue injection into the inner ring die cavity.
Description
Technical field
The utility model relates to a kind of making mould of metal-rubber composite gland bush, and particularly a kind of metal-rubber composite gland bush is made the injecting glue die cavity of mould.
Background technology
High-pressure oil pump is arranged in construction machinery hydraulic system, the high-pressure oil pump sealing gasket is arranged between the end cap of high-pressure oil pump and the oil pump body, the high-pressure oil pump sealing gasket is thin metal plain film skeleton of annular and rubber combined sealing gasket, Chinese patent ZL201020510255.X discloses in a kind of high-pressure oil pump and has used sealing gasket, the high-pressure oil pump sealing is lined with the thin metal plain film skeleton of annular, on the thin metal plain film skeleton of annular, be distributed with pilot hole along circular periphery, on the thin metal plain film skeleton of annular, edge along inner orifice has recessed step respectively below, along being compounded with the rubber seal line on the recessed ledge frame at inner orifice edge, the height of the seal lip of potted line is a bit larger tham the thickness of the thin metal plain film skeleton of annular.High-pressure oil pump sealing gasket metal-rubber sealing article is made of die pressing.Make the high-pressure oil pump sealing gasket with die pressing and will use mould, the high-pressure oil pump sealing gasket is an annular products, high-pressure oil pump sealing gasket mould has plate shaped upper die and lower die, the upper die and lower die opposite face is the plane, alignment pin is arranged between the upper die and lower die, the hole, on the relative face of upper die and lower die relative annular groove die cavity is arranged respectively, the annular groove die cavity has the outer shroud die cavity and the interior ring die cavity that holds rubber that are used to hold the thin metal plain film skeleton of annular that communicates, rubber mold can also have hand torn edges die cavity and cut the glue laminated line, for the high-pressure oil pump sealing gasket mould that the thin metal plain film skeleton of annular is arranged, on die face, also has the locating piece of the thin metal plain film skeleton of annular.In the prior art, the high-pressure oil pump sealing gasket upper mould face relative with counterdie is the plane.Because potted line is small-sized, during use, encircle in the die cavity in can not being placed in the sizing material semi-finished product, but annular is approached the outer shroud die cavity that metal plain film skeleton is placed on counterdie, again thin slice shape sizing material semi-finished product pendulum on the ring inner plane of the annular groove die cavity of counterdie, last, after counterdie closes, under the pressure of vulcanizing press, be expressed in the interior ring die cavity of annular groove die cavity and be adhered on the interior collar extension of the thin metal plain film skeleton of annular having viscoelastic sizing material in the ring of annular groove die cavity between the upper die and lower die, after the locked mode sulfuration, become the high-pressure oil pump sealing gasket.The structural member that does not help injecting glue in this high-pressure oil pump sealing gasket mould, having the viscoplasticity sizing material is to use, the ring inner plane of the annular groove die cavity between the counterdie is expressed to the interior ring die cavity that holds rubber, the half-finished consumption of sizing material is very bad fixed, because high-pressure oil pump sealing gasket rubber seal lip is small-sized, the half-finished consumption of sizing material is very big to the influence of product quality, the general half-finished consumption of sizing material will be slightly more than the glue amount in the product, unnecessary sizing material does not have suitable accommodated position, can only be last, between the ring inner plane of the annular groove die cavity between the counterdie, cause matched moulds sternly not make the poor quality of product.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, proposes a kind ofly to have the injecting glue die cavity and hold many
The high-pressure oil pump sealing gasket mould of surplus sizing material position.
The utility model is realized with the following method.
High-pressure oil pump sealing gasket mould has plate shaped upper die and lower die; the upper die and lower die opposite face is the plane; alignment pin is arranged between the upper die and lower die; the hole; the locating piece that the thin metal plain film skeleton of annular is arranged above the counterdie; on the relative face of upper die and lower die relative annular groove die cavity is arranged respectively; the annular groove die cavity has the outer shroud die cavity and the interior ring die cavity that holds rubber that are used to hold the thin metal plain film skeleton of annular that communicates; in the ring of counterdie annular groove die cavity boss is arranged; the peripheral shape of boss is similar to the interior annular shape of annular groove; it above the boss plane; the groove that matches with boss in the counterdie annular groove die cavity ring is arranged in the ring of patrix annular groove die cavity; the bottom surface of groove is the plane; after upper die and lower die close, between the bottom surface of the top and groove of boss certain clearance is arranged.
During use; earlier the thin metal plain film skeleton of annular be placed on counterdie above; then bar shaped sizing material semi-finished product are trapped among around the boss in the ring of counterdie annular groove die cavity; on the vulcanizing press patrix is being pressed on the counterdie again; downward at patrix near in the process of counterdie; the notch edge of patrix groove is pressed in bar shaped sizing material top earlier; when patrix continues to press to counterdie downwards; the notch edge of patrix groove pushes sizing material downwards; in the process of matched moulds; viscoelastic sizing material is extruded in the interior ring die cavity that flows to the annular groove die cavity and is adhered on the interior collar extension of the thin metal plain film skeleton of annular, in the gap between the bottom surface of the top and groove of unnecessary sizing material inflow boss.
The boss and the groove that match are arranged between counterdie of the present utility model and the patrix, bar shaped sizing material semi-finished product are trapped among around the counterdie boss, when patrix is pressed to counterdie downwards, the boss of counterdie is similar to piston and enters in the patrix groove, the notch edge of patrix groove sizing material swimmingly pressure injection in the interior ring die cavity of annular groove die cavity, in sizing material is full of the ring die cavity and be adhered on the interior collar extension of the thin metal plain film skeleton of annular after, because between the bottom surface of the top and groove of boss certain clearance is arranged, can allow unnecessary sizing material flow in the gap.The boss of counterdie and patrix groove match when mold pressing, are the structural members that helps inwardly to encircle injecting glue in the die cavity.
Adopt above-mentioned boss and the groove structure that matches that between counterdie and patrix, have, the size in gap between the size of the side by selecting mould boss and groove and the angle of upper and lower mould opposite face and the top and groove bottom surface of boss, be added with hand torn edges die cavity again and cut the glue laminated line, can design comparatively ideal high-pressure oil pump sealing gasket mould.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is the main cross-sectional schematic according to a kind of high-pressure oil pump sealing gasket mould of invention scheme proposition of the present utility model;
Fig. 2 is the schematic side view of facing upward of patrix;
Fig. 3 is the schematic top plan view of counterdie;
Fig. 4 is the I place section enlarged diagram of Fig. 1;
Fig. 5 is that the master of high-pressure oil pump sealing gasket looks schematic diagram;
Fig. 6 is the A-A generalized section of Fig. 5;
Fig. 7 ~ Figure 12 is in the step-by-step procedure of mold pressing, the I place enlarged diagram of Fig. 1.
The specific embodiment
Among Fig. 1 ~ Fig. 3 and Figure 12; high-pressure oil pump sealing gasket mould has plate shaped patrix 1 and counterdie 2; upper die and lower die opposite face 15; the 16th, the plane; locating hole is arranged between the upper die and lower die; pin 3; 4; the locating piece 5 that the thin metal plain film skeleton of annular is arranged above the counterdie; on the relative face of upper die and lower die relative annular groove die cavity 6 is arranged respectively; 7; the annular groove die cavity has the outer shroud die cavity 8 and the interior ring die cavity 9 that holds rubber that are used to hold the thin metal plain film skeleton of annular that communicates; in the ring of counterdie annular groove die cavity boss 10 is arranged; the peripheral shape of boss is similar to the interior annular shape of annular groove; top 11 of boss is planes; the groove 12 that matches with boss in the counterdie annular groove die cavity ring is arranged in the ring of patrix annular groove die cavity; the bottom surface of groove is plane 13; after upper die and lower die close, between the bottom surface of the top and groove of boss certain clearance 14 is arranged.
Among Fig. 5, Fig. 6, the high-pressure oil pump sealing is lined with the thin metal plain film skeleton 17 of annular, annular approaches on the metal plain film skeleton, is distributed with pilot hole 18 along circular periphery, the above and below of the thin metal plain film skeleton of annular has recessed step 19 respectively along the edge of inner orifice, along being compounded with rubber seal line 20 on the recessed ledge frame at inner orifice edge, the height of the seal lip of potted line is a bit larger tham the thickness of the thin metal plain film skeleton of annular.
Downward near in the process of counterdie among Fig. 7 ~ Figure 12 at patrix, the notch edge of patrix groove is pressed in bar shaped sizing material top earlier, when patrix continues to press to counterdie downwards, the notch edge of patrix groove pushes sizing material downwards, in the process of matched moulds, viscoelastic sizing material is extruded in the interior ring die cavity that flows to the annular groove die cavity and is adhered on the interior collar extension of the thin metal plain film skeleton of annular, in the gap between the bottom surface of the top and groove of unnecessary sizing material inflow boss.
Claims (1)
1. high-pressure oil pump sealing gasket mould; plate shaped upper die and lower die are arranged; the upper die and lower die opposite face is the plane; alignment pin is arranged between the upper die and lower die; the hole; the locating piece that the thin metal plain film skeleton of annular is arranged above the counterdie; on the relative face of upper die and lower die relative annular groove die cavity is arranged respectively; the annular groove die cavity has the outer shroud die cavity and the interior ring die cavity that holds rubber that are used to hold the thin metal plain film skeleton of annular that communicates; it is characterized in that: in the ring of counterdie annular groove die cavity boss is arranged; the peripheral shape of boss is similar to the interior annular shape of annular groove; it above the boss plane; the groove that matches with boss in the counterdie annular groove die cavity ring is arranged in the ring of patrix annular groove die cavity; the bottom surface of groove is the plane, after upper die and lower die close, between the bottom surface of the top and groove of boss certain clearance is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201647010U CN202062601U (en) | 2011-05-21 | 2011-05-21 | Sealing gasket die for high-pressure oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201647010U CN202062601U (en) | 2011-05-21 | 2011-05-21 | Sealing gasket die for high-pressure oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202062601U true CN202062601U (en) | 2011-12-07 |
Family
ID=45056478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201647010U Expired - Fee Related CN202062601U (en) | 2011-05-21 | 2011-05-21 | Sealing gasket die for high-pressure oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202062601U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211403A (en) * | 2011-05-21 | 2011-10-12 | 铁岭市友邦橡胶制品有限公司 | Die for sealing gasket of high-pressure oil pump |
| CN109689330A (en) * | 2016-11-29 | 2019-04-26 | 东和株式会社 | The manufacturing method of compression-molding apparatus, compression-molding method and compression forming product |
-
2011
- 2011-05-21 CN CN2011201647010U patent/CN202062601U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211403A (en) * | 2011-05-21 | 2011-10-12 | 铁岭市友邦橡胶制品有限公司 | Die for sealing gasket of high-pressure oil pump |
| CN109689330A (en) * | 2016-11-29 | 2019-04-26 | 东和株式会社 | The manufacturing method of compression-molding apparatus, compression-molding method and compression forming product |
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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: 20111207 Termination date: 20170521 |