CN1314526C - Dishing spring type press mould - Google Patents
Dishing spring type press mould Download PDFInfo
- Publication number
- CN1314526C CN1314526C CNB2004100159620A CN200410015962A CN1314526C CN 1314526 C CN1314526 C CN 1314526C CN B2004100159620 A CNB2004100159620 A CN B2004100159620A CN 200410015962 A CN200410015962 A CN 200410015962A CN 1314526 C CN1314526 C CN 1314526C
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- counterdie
- mold insert
- patrix
- spring type
- molding die
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Abstract
The present invention relates to a dishing spring type press mold which is composed of an upper mold shim plate, an upper mold, an upper mold insert, an insert, a large dishing spring, a small dishing spring, a lower mold, a lower mold insert, an ejector mechanism in a lower mold ring groove, etc. Due to the adoption of a dishing spring structure capable of adjusting mold locking pressure, the present invention can control the amount of rubber material in a mold cavity, raises the qualification rate of products, simultaneously eliminates the phenomenon of the abrasion of component parts in the mold and greatly prolongs the service life of the mold; besides, the present invention has the advantages of simple structure and low manufacture cost of the mold.
Description
Technical field
The present invention relates to outside framework oil seal and be molded into pattern, especially once molding formed disk spring type molding die.
Background technology
In plant equipment, especially required precision higher as automobile, precision machine tool, engineering machinery or the like plant equipment, requirement to leakage barrier is very high, and outside framework oil seal is a vital part of undertaking the antiseep task of the said equipment under dynamic and static state, the workmanship of himself will directly influence the antiseep effect, and the quality of outside framework oil seal is decided by to make its mould and die accuracy, so the total quality that how to improve mould will be the key point that improves product antiseep precision.In the shaping mould of existing manufacturing outside framework oil seal, adopt the pressure injection mold of 3-4 layer structure mostly, this mould adopts material feeding plunger to move up and down structure, relative engagement required precision height, the Mould Machining complexity causes the cost height; Next is that the locked mode pressure process is non-adjustable, and sizing material how much in the uncontrollable die cavity, and product percent of pass is low; The 3rd is moving up and down of plunger, and abrasion are increased, and reduce die life.
Summary of the invention
Technical problem to be solved by this invention all provide in the defective that overcomes prior art a kind of simple in structure, the locked mode pressure process is adjustable, improve product percent of pass, prolong the disk spring type molding die of die life.
Technical problem of the present invention solves by following technical proposal:
It comprises upper die plate and patrix, be provided with in the upper die plate with jump ring and make spacing mold insert, and the mold insert end face is lower than the upper die plate end face, form difference in height, be located at the counterdie of patrix below and the processing of its bedding-in, be provided with in the counterdie respectively with counterdie, with mold insert matched in clearance and the counterdie mold insert that fixes, in the inner groove of counterdie, be provided with simultaneously the spacing ejecting mechanism of jump ring, it is characterized in that being provided with between described patrix and the mold insert patrix mold insert, and form outside framework oil seal blank die cavity by counterdie, patrix mold insert, counterdie mold insert; In the patrix, the top of patrix mold insert is provided with the video disc spring of guaranteeing upper die plate and patrix formation spacing, in the video disc spring, the omoplate place that is positioned at mold insert is provided with the saucer spring.
Described ejecting mechanism comprises by press ejection ring counterdie top board pushing tow, that be fixed with one mutually and counterdie backing plate, is evenly equipped with a plurality of push rods that are connected with the counterdie backing plate on the periphery of counterdie top board and counterdie backing plate, is arranged with spring on the push rod.
Described patrix mold insert and patrix, be provided with seal groove, be provided with sealing ring in the groove with the faying face place of mold insert.
Described seal groove is shaped as rectangle or triangle is semicircle or trapezoidal.
The difference in height of described mold insert and upper die plate is d, and the spacing of upper die plate and patrix is c, and both passes are: d＞c+0.1.
The fit clearance of described mold insert and counterdie mold insert comprises radial clearance a=0.01～0.1 millimeter, end play b=0.5～1.5 millimeter.
Axial fit clearance e=0.1～1 of described counterdie and counterdie mold insert millimeter.
The contact position of described counterdie and counterdie mold insert is provided with sealing angle α=0.5～1.5 °.
The binding site of described patrix and counterdie is provided with a plurality of ring stiffener grooves.
Described reinforcement groove is semicircle, is located on the counterdie end face.
Compared with prior art, the present invention simplifies the structure, and die manufacturing cost is reduced; Adopt the dish spring structure, can first locked mode injecting glue again, the locked mode adjustable in pressure is regulated locked mode pressure by regulating upper die plate with the spacing of patrix, can control in the die cavity sizing material what, make the product percent of pass raising; Because the unnecessary abrasion between the mould inside part have been avoided in the variation of mould structure, have improved die life.
Description of drawings
Fig. 1 partly cuts open structural representation for the present invention;
Fig. 2 is the P place structure enlarged drawing of Fig. 1.
The specific embodiment
Below with reference to above-mentioned accompanying drawing embodiment the present invention is described in detail again.
Referring to Fig. 1-Fig. 2, disk spring type molding die general structure is the cylinder bodily form, is installed in above separable cope match-plate pattern of moulding press lower bolster and the middle template (not shown).Following examples are the example introduction with outside framework oil seal specification 85 * 105 * 12 (millimeter): it comprises upper die plate 1 and patrix 14, mold insert 6 is installed in the upper die plate, the jump ring 3 of position-limiting action has been installed in the jump ring groove of mold insert 6, the effect of jump ring had both prevented that mold insert 6 from falling down, prevent that again upper die plate is deviate from mould when mould is inverted, described mold insert 6 end faces are lower than upper die plate 1 end face, and the formation difference in height is d.Be provided with patrix mold insert 5 between patrix 14 and the mold insert 6, the top of patrix mold insert 5 is provided with video disc spring 2, and video disc spring omoplate place interior, that be positioned at mold insert 6 is provided with saucer spring 4, and the specification of large and small dish spring is selected relevant with the size of outside framework oil seal, outside framework oil seal is big, and large and small dish spring is also selected bigger.The effect of video disc spring is to produce pressure, makes patrix mold insert 5 play the locked mode effect, guarantee sizing material while flowing locked mode.The effect of saucer spring is to keep in the die cavity enough pressure being arranged, and redundant rubber stock is run away, and when sizing material is too many, mold insert 6 is up pushed up, and plays and regulates the effect of die cavity internal pressure, and glue is not run in control, control burr thickness.
Described video disc spring 2 makes between patrix 14 and the upper die plate 1 and to form spacing c, and this spacing c is relevant with the decrement of video disc spring, determines that by die trial spacing c is too big, and video disc spring decrement is big, easily causes self ultimate deformation and causes skeleton 16 to be out of shape; Spacing c is too little, does not play the locked mode effect, so the relation of spacing c and difference in height d must meet: d＞c+0.1, present embodiment take the c=0.85 millimeter, so d＞0.95 millimeter.
Described patrix 14 belows are provided with the counterdie 13 of bedding-in processing, be provided with in the counterdie respectively with counterdie 13, with mold insert 6 matched in clearance and the counterdie mold insert 7 that is fixed as one by screw, in the inner groove of counterdie, be provided with the spacing ejecting mechanism of jump ring 10 simultaneously.And form outside framework oil seal blank die cavity by counterdie 13, patrix mold insert 5, counterdie mold insert 7.
Described ejecting mechanism comprises by counterdie top board 11 and counterdie backing plate 12 press ejection ring (not shown) pushing tow, that be fixed with one by sunk screw, on the periphery of the counterdie top board 11 of annular and counterdie backing plate 12, be evenly equipped with 3-8 push rod 8 that is connected with the counterdie backing plate, push rod quantity is decided on the mould size, be arranged with spring 9 on the push rod, the effect of spring is to realize that push rod resets.
Described patrix mold insert 5 is provided with sealing ring 15 with patrix 14, be provided with the seal groove of rectangle with the faying face place of mold insert 6 in the groove, its effect is that the sizing material in the die cavity is not up run, thereby prevents that adjacent faying face place from stopping up, killing.
Described mold insert 6 comprises radial clearance a=0.05 millimeter with the fit clearance of counterdie mold insert 7, end play b=1 millimeter, the size in gap is according to rubber kind difference, by the clearance control rubber flow rate, keep in the die cavity enough pressure being arranged, redundant rubber stock is run away.
The end play e=0.6 millimeter of described counterdie 13 and counterdie mold insert 7, this end play e is again in conjunction with contact position formed sealing angle α=1 °, can reduce mutual contact area, after the die cavity pressurization, make A portion that the strain of trace be arranged, produce better sealing effect, prevent from that sizing material from entering in both gaps to form overlap, exempt and repair the overlap operation.
Described patrix 14 is provided with 4 ring stiffener grooves 17 with the binding site of counterdie 13, this reinforcement groove is semicircle, is located on the counterdie end face, is convenient to when depanning product be taken out of with overlap, the sizing material outflow rate can be reduced, the pressure in the die cavity can be guaranteed again.
During product compression molding of the present invention, cope match-plate pattern by press promotes upper and lower mould separation, comprise that patrix 14, upper die plate 1, patrix mold insert 5, mold insert 6, dish spring etc. promote synchronously, earlier skeleton 16 is placed in the die cavity, a kind of annular sizing material is enclosed within the N place of counterdie mold insert 7, more another kind of sizing material (can be homochromy or not homochromy) is enclosed within the M place.Patrix 14 closes, upper die plate 1 is down exerted pressure, by video disc spring 2 skeleton 16 is pinned between patrix mold insert 5 and counterdie 13, continue pressurization again, sizing material is flow in the die cavity, the unnecessary sizing material of inner ring is between counterdie mold insert 7 and mold insert 6, by saucer spring 4, mold insert 6 is up pushed up, both kept that enough pressure was arranged in the die cavity, can make unnecessary sizing material run away rubber vulcanization moulding then again.Separate patrix 14 during depanning earlier, push rod 8 takes out product by the ejection ring jack-up in the press, withdraws from ejection ring, and spring 9 realizes that push rods reset.
Claims (10)
1, a kind of disk spring type molding die, it comprises upper die plate (1) and patrix (14), be provided with in the upper die plate with jump ring (3) and make spacing mold insert (6), and mold insert (6) end face is lower than the upper die plate end face, form difference in height, be located at the counterdie (13) of patrix (14) below and the processing of its bedding-in, be provided with in the counterdie (13) respectively and counterdie, with mold insert (6) matched in clearance and the counterdie mold insert (7) that fixes, in the inner groove of counterdie, be provided with simultaneously the spacing ejecting mechanism of jump ring (10), it is characterized in that being provided with patrix mold insert (5) between described patrix (14) and the mold insert (6), and by counterdie (13), patrix mold insert (5), counterdie mold insert (7) forms outside framework oil seal blank die cavity; In the patrix (14), the top of patrix mold insert (5) is provided with the video disc spring (2) of guaranteeing upper die plate and patrix formation spacing, in the video disc spring, the omoplate place that is positioned at mold insert (6) is provided with saucer spring (4).
2, disk spring type molding die according to claim 1, it is characterized in that described ejecting mechanism comprises by press ejection ring counterdie top board pushing tow, that be fixed with one mutually (11) and counterdie backing plate (12), on the periphery of counterdie top board and counterdie backing plate, be evenly equipped with a plurality of push rods (8) that are connected with the counterdie backing plate, be arranged with spring (9) on the push rod.
3, disk spring type molding die according to claim 1 and 2 is characterized in that described patrix mold insert (5) and patrix (14), is provided with seal groove with the faying face place of mold insert (6), is provided with sealing ring (15) in the groove.
4, disk spring type molding die according to claim 3 is characterized in that described seal groove is shaped as rectangle or triangle is semicircle or trapezoidal.
5, disk spring type molding die according to claim 1 and 2 is characterized in that the described mold insert (6) and the difference in height of upper die plate (1) are d, and upper die plate (1) is c with the spacing of patrix (14), and both passes are: d＞c+0.1.
6, disk spring type molding die according to claim 1, the fit clearance that it is characterized in that described mold insert (6) and counterdie mold insert (7) comprise radial clearance a=0.01～0.1 millimeter, end play b=0.5～1.5 millimeter.
7, disk spring type molding die according to claim 1 is characterized in that axial fit clearance e=0.1～1 millimeter of described counterdie (13) and counterdie mold insert (7).
8, disk spring type molding die according to claim 1, the contact position that it is characterized in that described counterdie (13) and counterdie mold insert (7) are provided with sealing angle α=0.5～1.5 °.
9, disk spring type molding die according to claim 1 is characterized in that the described patrix (14) and the binding site of counterdie (13) are provided with a plurality of ring stiffener grooves (17).
10, disk spring type molding die according to claim 9 is characterized in that described reinforcement groove (17) for semicircle, is located on counterdie (13) end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100159620A CN1314526C (en) | 2004-01-18 | 2004-01-18 | Dishing spring type press mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100159620A CN1314526C (en) | 2004-01-18 | 2004-01-18 | Dishing spring type press mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1557623A CN1557623A (en) | 2004-12-29 |
| CN1314526C true CN1314526C (en) | 2007-05-09 |
Family
ID=34351618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100159620A Expired - Fee Related CN1314526C (en) | 2004-01-18 | 2004-01-18 | Dishing spring type press mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1314526C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030979B (en) * | 2017-04-14 | 2023-06-02 | 宣城安安橡塑有限责任公司 | Automatic ejection die for disc spring sealing glue |
| CN109203332B (en) * | 2018-09-29 | 2021-02-05 | 安徽库伯密封技术有限公司 | Adjustable sealing ring sealing glue mold |
| CN109465990B (en) * | 2018-11-27 | 2021-09-10 | 安徽库伯密封技术有限公司 | Improved exposed framework sealing ring mold |
| CN113246348B (en) * | 2021-06-29 | 2022-11-11 | 哈尔滨利民橡胶有限公司 | BCS piston compression molding rubber mold |
| CN113894973B (en) * | 2021-08-24 | 2024-05-14 | 西安航空制动科技有限公司 | Forming method of inner spring oil retainer for airplane wheel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000015369A1 (en) * | 1998-09-11 | 2000-03-23 | The Ohio Mattress Company Licensing And Components Group | Machinery for automated manufacture of innerspring assemblies |
-
2004
- 2004-01-18 CN CNB2004100159620A patent/CN1314526C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000015369A1 (en) * | 1998-09-11 | 2000-03-23 | The Ohio Mattress Company Licensing And Components Group | Machinery for automated manufacture of innerspring assemblies |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1557623A (en) | 2004-12-29 |
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Granted publication date: 20070509 Termination date: 20130118 |