CN207578935U - One kind is used for 45 ° of molding mould structures of O-ring - Google Patents
One kind is used for 45 ° of molding mould structures of O-ring Download PDFInfo
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- CN207578935U CN207578935U CN201721700253.5U CN201721700253U CN207578935U CN 207578935 U CN207578935 U CN 207578935U CN 201721700253 U CN201721700253 U CN 201721700253U CN 207578935 U CN207578935 U CN 207578935U
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- involutory surface
- lower die
- upper mold
- bottom plate
- ring
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Abstract
The utility model is related to O-ring manufacturing technology fields, it is open a kind of for 45 ° of molding mould structures of O-ring, upper mounted plate and bottom plate set upper die and lower die respectively, there is semi-circular cross-section annular chamber on upper die and lower die, semi-circular cross-section diameter line angle with horizontal plane is 45 °, the semicircle annular chamber of upper die and lower die forms a circular cross-section annular die cavity, upper mold is with involutory surface under involutory surface in upper mold and upper mold, lower die has in lower die involutory surface under involutory surface and lower die, and parallel with horizontal plane；It is positioned between upper mounted plate and bottom plate by least two groups of detent mechanisms, detent mechanism includes location hole and positioning column, and location hole is opened on bottom plate, and positioning column is fixedly installed on upper mounted plate, positioning column can be injected in location hole, and positioning and guiding is carried out to clamping process.Ensure positioning accuracy during molding, prevent in molding extrusion process, involutory surface crimp causes O-ring forming cavity to deform, and causes product unqualified.
Description
Technical field
The utility model is related to O-ring manufacturing technology fields, more particularly to a kind of to be used for the molding mold knot of 45 ° of O-rings
Structure.
Background technology
45 ° of O-rings are necessary products under the operating condition for sealing industry high requirement, and mold is that rubber mold adds
The processing technology grasped is difficult in work.Traditional mould structure is by the use of 90 ° of conical surfaces as die joint, because of the excessive positioning accuracy of angle
The main reason for declining to a great extent, often quality is relatively low for the product made by the mold of the structure.
The traditional mould structure of 45 ° of parting O-rings is positioned using 90 ° of conical surfaces, and specific there are the following problems：
1）Positioning accuracy declines.According to theory of mechanics, positioning taper is bigger, and positioning accuracy is lower.Process is used in mold
In, the uniformity that mold positioning accuracy inserts sizing material is very sensitive, sizing material along when inserting in cavity ring week will not absolute uniform, mold
In molding, the more part of sizing material is first by pressure, and mold cannot be molded correctly, and there are upper mold inclination conditions trend, and that makes is same
Cause not of uniform size is there is from section on one product；
2）The contact of the concave-convex conical surface is very big with its processing roughness relationship, under different contacts, total height of mold
Degree has different values, reacts on mold parting surface, and the parting line of upper and lower mould just generates relative shift, is both that cannot overlap,
There is distortion circle in the product cross section made.
Therefore, the application proposes a kind of for 45 ° of molding mould structures of O-ring.
Utility model content
The goal of the invention of the utility model is：In view of the above problems, it provides a kind of for 45 ° of O-rings moldings
Mould structure, it is simple and practical in structure, can effectively ensure that positioning accuracy during molding, meanwhile, prevent molding extrusion process
In, the crimp of involutory surface leads to the deformation of O-ring forming cavity, and then causes O-ring product unqualified, ensure that product matter
Amount.
The technical solution adopted in the utility model is such：One kind is used for 45 ° of molding mould structures of O-ring, including
The opposite side of upper mounted plate and bottom plate, fixed plate and bottom plate is respectively correspondingly fixedly installed upper mold under
Mould matchingly offers annular chamber on the upper die and lower die, and the cross sectional shape of the annular chamber is semicircle, and semicircle
The diameter line in section and the angle of horizontal plane are 45 °, and the semicircle annular chamber of upper die and lower die can be with a section is combined into
Circular annular die cavity, upper mold have involutory surface and lower die in lower die with involutory surface under involutory surface in upper mold and upper mold, lower die
Lower involutory surface, involutory surface under involutory surface, upper mold in upper mold, involutory surface is parallel with horizontal plane under involutory surface and lower die in lower die,
During molding, involutory surface is bonded matching with involutory surface in lower die in upper mold, and involutory surface is bonded matching with involutory surface under lower die under upper mold,
The annular chamber is opened up in upper mold under involutory surface and upper mold between involutory surface, in lower die under involutory surface and lower die between involutory surface
The annular chamber is opened up, involutory surface is flushed with the inner side end of upper mounted plate in upper mold, involutory surface and bottom plate in lower die
Inner side end flushes；
It is positioned between fixed plate and bottom plate by least two groups of detent mechanisms of setting, single group positioning
Mechanism includes location hole and positioning column, and the location hole is opened on bottom plate, and the positioning column is fixedly installed on fixation
On plate, during molding, positioning column can be injected in location hole, and clamping process is positioned and is oriented to.
It is described in the utility model a kind of for 45 ° of molding mould structures of O-ring, involutory surface and lower die in the upper mold
The clout chamber of annular is offered between upper involutory surface, also offers annular between involutory surface under involutory surface and lower die under the upper mold
Clout chamber so that molding squeeze when, extra raw material can squeeze into the clout intracavitary at the spue line of the annular die cavity.
Described in the utility model a kind of for 45 ° of molding mould structures of O-ring, the location hole is stepped hole, institute
The imperial palace path portion for stating stepped hole is installed with positioning sleeve, and stepped hole is also offered on fixed plate, and positioning column is platform
Rank column, the major diameter part of step column are fixedly installed in the imperial palace path portion in upper mounted plate top bar hole, the positioning sleeve and fixed
The material hardness of position column is more than the material hardness of upper mounted plate and bottom plate.
It is described in the utility model a kind of for 45 ° of molding mould structures of O-ring, the small diameter portion of the positioning column
End there is arc angling, there is arc angling close to the end inner circle of upper mounted plate on the positioning sleeve.
It is described in the utility model a kind of for 45 ° of molding mould structures of O-ring, fixed plate and bottom plate
On offer step mounting groove, the upper die and lower die correspondence be installed in step mounting groove and pass through bolt respectively with it is upper solid
Fixed board is fixedly connected with bottom plate.
It is described in the utility model a kind of for 45 ° of molding mould structures of O-ring, fixed plate and bottom plate
Between be provided with three groups of detent mechanisms, three groups of detent mechanism lines form a triangles.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are：The utility model structure
It is simple and practical, the cooperation of vertical location hole and vertical positioning column, limit between upper die and lower die in the horizontal plane from
By spending, positioning accuracy during molding can effectively ensure that, avoid mold positioning accuracy is influenced by the uniformity that sizing material is inserted；
Meanwhile during molding, involutory surface under involutory surface and lower die under involutory surface, upper mold in involutory surface and lower die in upper mold, on
On mould involutory surface flushed with the inner side end of upper mounted plate, in lower die involutory surface flushed with the inner side end of bottom plate it is specific
Setting so that in above-below direction, the die joint of mold is the big plane with horizontal parallel, and roughness is by the modes such as being ground very
Easily reach, the total height of mold will not change substantially at various pressures, and the control of interface circularity only needs to ensure
The circularity of annular die cavity can just be reached, and effectively prevent in extrusion process is molded, the crimp of involutory surface leads to O-ring
The deformation of forming cavity, and then cause O-ring product unqualified, it ensure that product quality.
Description of the drawings
Fig. 1 is 90 ° of traditional conical surface mould structures；
Fig. 2 is the utility model bottom view；
Fig. 3 be in Fig. 2 A-A to revolved sectional view；
Fig. 4 is the sectional view that upper die and lower die coordinate in the utility model；
Fig. 5 is the decomposition diagram of Fig. 4；
Fig. 6 is the decomposition diagram of Fig. 3；
Fig. 7 is enlarged drawing at B in Fig. 6.
It is marked in figure：1 is upper mounted plate, and 2 be bottom plate, and 3 be upper mold, and 4 be lower die, and 5 be annular chamber, and 6 be circular die
Chamber, 7 be involutory surface in upper mold, and 8 be involutory surface under upper mold, and 9 be involutory surface in lower die, and 10 be involutory surface under lower die, and 11 be positioning
Structure, 11-1 are location hole, and 11-2 is positioning column, and 11-3 is positioning sleeve, and 11-4 is arc angling, and 12 be clout chamber, and 13 be platform
Rank mounting groove, 14 be step mounting portion, and 15 be bolt.
Specific embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Fig. 1 to 7, one kind is for 45 ° of molding mould structures of O-ring, including upper mounted plate 1 and bottom plate 2,
The opposite side of upper mounted plate 1 and bottom plate 2 is respectively correspondingly fixedly installed upper mold 3 and lower die 4, specifically, upper mounted plate 1
With offer step mounting groove 13 on bottom plate 2, upper mold 3 and the correspondence of lower die 4 are installed in step mounting groove 13 and pass through
Bolt 15 is fixedly connected respectively with upper mounted plate 1 and bottom plate 2, and step mounting portion 14, platform are respectively provided in upper mold 3 and lower die 4
Rank mounting portion 14 is adapted with step mounting groove 13, ensures upper mold 3 and lower die 4 respectively in upper mounted plate 1 and bottom plate 2
Good location is achieved a fixed connection by bolt 15 so that the installing and dismounting of upper mold 3 and lower die 4 is more convenient, after being convenient for
Phase repair and replacement；Annular chamber 5 is matchingly offered in upper mold 3 and lower die 4, the cross sectional shape of annular chamber 5 is semicircle, and partly
The diameter line of circular cross-section and the angle of horizontal plane are 45 °, and the semicircle annular chamber 5 of upper mold 3 and lower die 4, which can match, is combined into one
Section is circular annular die cavity 6, and upper mold 3 has right in lower die with involutory surface 8 under involutory surface 7 in upper mold and upper mold, lower die 4
Involutory surface 10 under conjunction face 9 and lower die, involutory surface 8 under involutory surface 7, upper mold in upper mold, involutory surface under involutory surface 9 and lower die in lower die
10 is parallel with horizontal plane, and during molding, involutory surface 7 is bonded matching with involutory surface in lower die 9 in upper mold, under upper mold involutory surface 8 with
The fitting of involutory surface 10 matching under lower die, opens up annular chamber 5 in upper mold between involutory surface 8 under involutory surface 7 and upper mold, pairing in lower die
Also annular chamber 5 is opened up under face 9 and lower die between involutory surface 10, involutory surface 7 is flushed with the inner side end of upper mounted plate 1 in upper mold,
Involutory surface 9 is flushed with the inner side end of bottom plate 2 in lower die；
It is positioned between upper mounted plate 1 and bottom plate 2 by least two groups of detent mechanisms 11 of setting, specifically,
Three groups of detent mechanisms, 11, three groups of 11 lines of detent mechanism are provided between upper mounted plate 1 and bottom plate 2 and form a triangle
Shape ensures that position fixing process is more precise and stable, and single group detent mechanism 11 includes location hole 11-1 and positioning column 11-2, location hole
11-1 is opened on bottom plate 2, and positioning column 11-2 is fixedly installed on upper mounted plate 1, and during molding, positioning column 11-2 can be injected
In location hole 11-1, clamping process is positioned and is oriented to；6 inner space of annular die cavity surrounds O-ring contour structures, and half
Diameter line, that is, spue line of circular cross-section（Namely parting line）Angle with horizontal plane is 45 °, and involutory surface also refers to die joint.
Further, the clout chamber 12 of annular is offered in upper mold in involutory surface 7 and lower die between involutory surface 9, under upper mold
Also the clout chamber 12 of annular is offered under involutory surface 8 and lower die between involutory surface 10 so that when molding squeezes, extra raw material can
It is squeezed at the spue line of annular die cavity 6 in clout chamber 12, so set, when ensure that molding, extra raw material can be from two
Direction（I.e. along the both direction of 45 ° of parting lines）It is squeezed into respectively in two clout chambers 12.
Further, location hole 11-1 is stepped hole, and the imperial palace path portion of stepped hole is installed with positioning sleeve 11-3, on
Also stepped hole is offered in fixed plate 1, positioning column 11-2 is step column, and the major diameter part of step column is fixedly installed in fixation
The material hardness of the imperial palace path portion in 1 top bar hole of plate, positioning sleeve 11-3 and positioning column 11-2 are more than upper mounted plate 1 and lower fixation
The material hardness of plate 2, so set, since vegetation operation has frequency, it is how many between positioning sleeve 11-3 and positioning column 11-2
Will occur some frequently to collide with, ensure that the service life of positioning sleeve 11-3 and positioning column 11-2, further, positioning column
The end of the small diameter portion of 11-2 has arc angling 11-4, the end inner circle of the upper close upper mounted plates 1 of positioning sleeve 11-3
With arc angling 11-4, it is arranged such so that during molding, when positioning column 11-2 has just contacted positioning sleeve 11-3, the arc of the two
Shape chamfering 11-4 can play effective guiding role so that clamping process is more smooth.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (6)
1. one kind is used for 45 ° of molding mould structures of O-ring, it is characterised in that：Including upper mounted plate（1）And bottom plate（2）,
Fixed plate（1）And bottom plate（2）Opposite side be respectively correspondingly fixedly installed upper mold（3）And lower die（4）, it is described
Upper mold（3）And lower die（4）On matchingly offer annular chamber（5）, the annular chamber（5）Cross sectional shape for semicircle, and
The diameter line of semi-circular cross-section and the angle of horizontal plane are 45 °, upper mold（3）And lower die（4）Semicircle annular chamber（5）It can coordinate
One section of composition is circular annular die cavity（6）, upper mold（3）With involutory surface in upper mold（7）With involutory surface under upper mold（8）,
Lower die（4）With involutory surface in lower die（9）With involutory surface under lower die（10）, involutory surface in upper mold（7）, involutory surface under upper mold（8）、
Involutory surface in lower die（9）With involutory surface under lower die（10）It is parallel with horizontal plane, during molding, involutory surface in upper mold（7）With lower die
Upper involutory surface（9）Fitting matches, involutory surface under upper mold（8）With involutory surface under lower die（10）Fitting matches, involutory surface in upper mold（7）
With involutory surface under upper mold（8）Between open up the annular chamber（5）, involutory surface in lower die（9）With involutory surface under lower die（10）Between
Also the annular chamber is opened up（5）；
Fixed plate（1）And bottom plate（2）Between pass through at least two groups of detent mechanisms of setting（11）It is positioned, it is single
Group detent mechanism（11）Including location hole（11-1）And positioning column（11-2）, the location hole（11-1）It is opened in bottom plate
（2）On, the positioning column（11-2）It is fixedly installed on upper mounted plate（1）On, during molding, positioning column（11-2）Location hole can be injected
（11-1）It is interior, clamping process is positioned and is oriented to.
It is 2. according to claim 1 a kind of for 45 ° of molding mould structures of O-ring, it is characterised in that：In the upper mold
Involutory surface（7）With involutory surface in lower die（9）Between offer annular clout chamber（12）, involutory surface under the upper mold（8）With under
Involutory surface under mould（10）Between also offer annular clout chamber（12）So that when molding squeezes, extra raw material can be from described
Annular die cavity（6）Spue line at squeeze into the clout chamber（12）It is interior.
It is 3. according to claim 1 a kind of for 45 ° of molding mould structures of O-ring, it is characterised in that：The location hole
（11-1）For stepped hole, the imperial palace path portion of the stepped hole is installed with positioning sleeve（11-3）, fixed plate（1）On
Also stepped hole, positioning column are offered（11-2）For step column, the major diameter part of step column is fixedly installed in upper mounted plate（1）On
The imperial palace path portion of stepped hole, the positioning sleeve（11-3）And positioning column（11-2）Material hardness be more than upper mounted plate（1）With
Bottom plate（2）Material hardness.
It is 4. according to claim 3 a kind of for 45 ° of molding mould structures of O-ring, it is characterised in that：The positioning column
（11-2）Small diameter portion end have arc angling（11-4）, the positioning sleeve（11-3）Upper close upper mounted plate（1）
End inner circle have arc angling（11-4）.
It is 5. according to claim 1 a kind of for 45 ° of molding mould structures of O-ring, it is characterised in that：It is fixed
Plate（1）And bottom plate（2）On offer step mounting groove（13）, the upper mold（3）And lower die（4）Correspondence is installed on step
Mounting groove（13）It is interior and pass through bolt（15）Respectively with upper mounted plate（1）And bottom plate（2）It is fixedly connected.
It is 6. according to any one of claims 1 to 5 a kind of for 45 ° of molding mould structures of O-ring, it is characterised in that：
Fixed plate（1）And bottom plate（2）Between be provided with three groups of detent mechanisms（11）, three groups of detent mechanisms（11）Line shape
Into a triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721700253.5U CN207578935U (en) | 2017-12-08 | 2017-12-08 | One kind is used for 45 ° of molding mould structures of O-ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721700253.5U CN207578935U (en) | 2017-12-08 | 2017-12-08 | One kind is used for 45 ° of molding mould structures of O-ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207578935U true CN207578935U (en) | 2018-07-06 |
Family
ID=62736214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721700253.5U Active CN207578935U (en) | 2017-12-08 | 2017-12-08 | One kind is used for 45 ° of molding mould structures of O-ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207578935U (en) |
-
2017
- 2017-12-08 CN CN201721700253.5U patent/CN207578935U/en active Active
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