CN208812377U - It is a kind of for manufacturing the mold of U-shaped rubber ring - Google Patents
It is a kind of for manufacturing the mold of U-shaped rubber ring Download PDFInfo
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- CN208812377U CN208812377U CN201821517938.0U CN201821517938U CN208812377U CN 208812377 U CN208812377 U CN 208812377U CN 201821517938 U CN201821517938 U CN 201821517938U CN 208812377 U CN208812377 U CN 208812377U
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Abstract
The utility model provides a kind of for manufacturing the mold of U-shaped rubber ring, belongs to technical field of mold.It solve the problems, such as how to improve in mould service life.This mold includes upper mold, middle mould and lower die, middle mould is in the form of annular discs, there is radially projecting and annular in shape slice part on the outer peripheral surface of middle mould, type chamber is formed between slice part, upper die and lower die three, there is embryo material mounting table in lower die, there is binder platform corresponding with embryo material mounting table position in upper mold, the table top of binder platform with the table top of embryo material mounting table is plane and parallel, the outside of embryo material mounting table has the blocking surface upwardly extended from the table top of embryo material mounting table, and slice part and type chamber are located at the inside of embryo material mounting table.This mold still uses stamping technique, under the premise of not increasing cost, by changing depressed position of embryo material during pressing mold, substantially reducing the pressing times of middle mould thin slice and by pressure, being damaged so that deformation is less likely to occur middle mould slice part.
Description
Technical field
The utility model belongs to technical field of mold, is related to a kind of for manufacturing the mold of U-shaped rubber ring.
Background technique
Rubber industry is one of important foundation industry of national economy.It is indispensable that it not only provides daily life for people
The light industrys rubber product such as daily, medical, and mentioned to the heavy industry such as digging, traffic, building, machinery, electronics and new industry
For various rubber system production equipments or rubber components.Wherein, rubber seal is one of widely applied product of field of sealing technology, outside
Shape size is relatively small, and usage amount is big, and production technology mostly uses molding sulfuration process.Rubber ring type is more, according to section shape
The difference of shape can be divided into O-ring seal, U-shaped sealing ring, V-shaped seal ring, YX type sealing ring, flower bud type sealing ring etc..These rubber
The manufacture of circle generallys use mold injection molding or the molding of mold press mold.
Wherein, there is a ring annular groove on the inner peripheral surface of the U-shaped rubber ring of lips, be different from and be commonly used for manufacturing O-shaped rubber
The mold of cushion rubber, dedicated for manufacture the U-shaped rubber ring of lips mold not only include upper die and lower die, further include be located at upper mold and
Middle mould between lower die forms and the U-shaped consistent type of rubber loop-shaped when upper die and lower die molding between the two and middle mould
Chamber, U-shaped rubber ring are formed by above-mentioned mold pressing mold.
But in the prior art, the above-mentioned mold for manufacturing the U-shaped rubber ring of lips has the following deficiencies: due to usual U
The size of type rubber ring is smaller, the width of annular recess about 0.75~1mm, causes so above-mentioned for forming on middle mould
The size at the position of annular groove is also very small, and structure is very thin, and in actual use, middle mould is easy by long-term squeeze
It is deformed, causes middle mould damage rate higher, such mold report undesirable so as to cause the rubber ring quality manufactured
Useless rate is higher, influences the service life of mold.In view of the above drawbacks, the common technological means of the prior art is often through use
Intensity is higher, and expensive material is used to manufacturing mould among the above, to improve service life；Or it is directly changed manufacture work
Skill such as overcomes drawbacks described above by injection mold injection molding.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, is proposed a kind of for manufacturing U-shaped rubber
The technical issues of mold of cushion rubber, the utility model solves is the service life of mould in how improving.
The purpose of this utility model can be realized by the following technical scheme: it is a kind of for manufacturing the mold of U-shaped rubber ring,
Including upper mold, middle mould and lower die, the middle mould is in the form of annular discs, has on the outer peripheral surface of the middle mould radially projecting and annular in shape
Slice part, type chamber is formed between the slice part, upper die and lower die three, which is characterized in that in the lower die have embryo
Expect mounting table, there is binder platform corresponding with embryo material mounting table position in the upper mold, the table top of the binder platform is put with embryo material
The table top for setting platform is plane and parallel, and the outside of the embryo material mounting table has to be upwardly extended from the table top of embryo material mounting table
Blocking surface, the slice part and type chamber are located at the inside of embryo material mounting table.
This mold is exclusively used in the manufacture U-shaped rubber ring of lips, and using stamping technique, wherein the slice part design of middle mould
Exactly in order to the annular groove of U-shaped rubber ring inner peripheral surface can be enable to form in pressing mold；The utility model is thin for middle mould
Piece portion thinner thickness, defect prone to compressive deformation, design principle are as follows: the utility model passes through the structure to upper die and lower die
Improvement is made, the depressed position of embryo material is changed, i.e., by designing the embryo material mounting table to lower recess in lower die, then in upper mold
It is upper to design corresponding binder platform, it, can shape between embryo material mounting table and binder platform when binder platform, which enters lower die, carries out mould assembling action
At squeezing passage, the blocking surface on the outside of embryo material mounting table is kept off in one end of squeezing passage, and slice part and type chamber are located at embryo
Expect that the inside of mounting table, the i.e. other end outlet of the squeezing passage are located at the peripheral side of slice part and communicate with type chamber, at this time embryo
Material is placed on embryo material mounting table and is located in squeezing passage, and with the decline of upper molding compound platform, such embryo material can first exist
It is pressurized in squeezing passage and becomes like form paste, since squeezing passage one end is stopped by blocking surface, then, it is pressurized
Embryo material afterwards will be intracavitary further by molded from the other end output flow of squeezing passage to type, from above-mentioned analysis it is found that
By above-mentioned design, the period and position that embryo material is mainly pressurized, by the buffering of squeezing passage, are flowed into squeezing passage
Embryo material after type chamber is pressurized substantially to be completed, then embryo material, in the intracavitary further compression of type, centering mould slice part squeezes
Pressure and extrusion time just will be greatly reduced, so that slice part is squeezed power and becomes comparable small, so that slice part is not
Easily deform service life that is impaired, and then improving middle mould.
In the above-mentioned mold for manufacturing U-shaped rubber ring, the table top of the binder platform and the table top of embryo material mounting table
Horizontally disposed, the table surface height of the embryo material mounting table is consistent with the height of position at the vertical half of slice part.
By above-mentioned design, enable the embryo material from the squeezing passage outlet outflow formed between above-mentioned two table top by slice part
The synchronous type formed between the type chamber formed between slice part and upper mold and slice part and lower die that enters of shunting function it is intracavitary, with
The decline of upper mold so that the two sides up and down of slice part are all slowly synchronous to be full of embryo material, so that embryo material is intracavitary into one in type
After step is pressurized, the two sides up and down of slice part are capable of forming preferable stress balance, so that slice part will not be because of bearing up-down force
It is excessively uneven and that unilateral deformation occurs is impaired, and then further improve the service life of middle mould.
In the above-mentioned mold for manufacturing U-shaped rubber ring, opened on the table top of the binder platform and embryo material mounting table
Equipped with groove in a ring, the position of two grooves is corresponding up and down, and the groove leans on plesiotype chamber.By with the design of upper groove,
On the one hand embryo material is enabled to obtain deceleration buffer when being extruded the squeezing passage of two table tops formation, under upper mold
Drop, so that the time that embryo material can be grown as far as possible rests in squeezing passage, so that reducing embryo material enters the extruding after type chamber
Time thereby reduces the pressing times of slice part and is improved by pressure further such that slice part is not easy to be deformed
The service life of middle mould；On the other hand, due to having gap between upper mold, middle mould and lower die molding latter three, these gaps
Presence will lead to rubber after molding and flash occur, and by designing above, need to demould when rubber ring is formed by pressing mold
When, due to meeting residual fraction rubber in above-mentioned groove, so that a biggish flash of circle is formed on the rubber ring at position herein,
People, which need to only tear the flash, can remove rubber ring in the flash at the position, so that the process of trimming is enormously simplified, so that
The manufacture of rubber ring is more convenient.
In the above-mentioned mold for manufacturing U-shaped rubber ring, have annularly on the type bottom of chamber face in the upper mold
Arc groove, the arc groove are located at the surface of slice part.When upper die and lower die are close to be fully come together, pass through the above arc groove
Design, be conducive to the release of embryo material extruding force, to reduce extruding for middle mould slice part, mould service life in raising.
In the above-mentioned mold for manufacturing U-shaped rubber ring, the periphery of the binder platform has parallel with blocking surface
Mating surface, the blocking surface is parallel with mating surface and is inclined-plane and has gap between the two.By the above inclined design, when
When squeezing passage of the embryo material between two table tops is squeezed, above-mentioned inclined-plane can generate a reaction obliquely to embryo material
Power, rather than the reaction force residence time which adds embryo materials in squeezing passage directly transversely acted on is generated,
So that embryo material enters back into the compression of type chamber after obtaining enough extruding in squeezing passage, middle mould slice part is advantageously reduced in this way
Pressing times and by pressure, thus in being conducive to improve mould service life；Above-mentioned gap is that the movement of upper die and lower die provides
Mobile space, also, as the molding of upper die and lower die, both above-mentioned gap formed can more become smaller, guarantee to squeeze logical
Embryo material in road can obtain squeezing without running out of from gap enough.
In the above-mentioned mold for manufacturing U-shaped rubber ring, upper surface and/or following table of the middle mould close to slice part
It is equipped with half slot one of torn edges on face, tear corresponding with above-mentioned torn edges half slot, one position is respectively equipped in the upper mold and/or lower die
Half slot two of side, after upper die and lower die molding, between the upper surface and upper mold of the middle mould, the lower surface of middle mould and lower die
Between all have gap, above-mentioned half slot one of torn edges and half slot two of torn edges are communicated by corresponding gap with type chamber.Due to upper mold, in
There is gap between mould and lower die molding latter three, the presence in these gaps will lead to rubber after molding and flash occurs, and
By designing above, when rubber ring needs to demould by pressing mold molding, due to meeting residual fraction rubber in above-mentioned groove, in this way
As soon as enclosing biggish flash so that formed on the rubber ring at position herein, people, which need to only tear the flash, can remove rubber ring at this
The flash at position, so that the process of trimming is enormously simplified, so that the manufacture of rubber ring is more convenient；Meanwhile when upper and lower mould is complete
When closing up entirely, part embryo material can be gone to from type chamber in half slot two of half slot one of torn edges and torn edges, to be conducive to the intracavitary extruding force of type
Release, advantageously reduce the compression of middle mould slice part, the service life of mould in raising.
In the above-mentioned mold for manufacturing U-shaped rubber ring, the upper surface of the middle mould is equipped with excessive glue in a ring
Slot has gap, between the excessive glue groove passes through after upper die and lower die molding between the upper surface and upper mold of the middle mould
Gap is communicated with type chamber.By designing above, when upper and lower mould fully comes together, part embryo material can be gone in excessive glue groove from type chamber, from
And be conducive to the release of the intracavitary extruding force of type, the compression of middle mould slice part is advantageously reduced, the service life of mould in raising.
In the above-mentioned mold for manufacturing U-shaped rubber ring, there is multiple embryo material mounting tables, the embryo in the lower die
Expect that the inner circumferential side of mounting table has mating cavity compatible with middle mould shape.By designing above, this secondary film tool can be manufactured
Multiple rubber rings are conducive to improve manufacture efficiency.
Compared with prior art, this has the advantage that this mold still using pressure for manufacturing the mold of U-shaped rubber ring
Mold technique makes improvement by the structure to upper die and lower die under the premise of not increasing cost, changes embryo material in pressing mold mistake
Depressed position in journey, substantially reduces the pressing times of middle mould thin slice and by pressure, so that middle mould slice part is less likely to occur
Deformation is impaired, to substantially increase the service life of middle mould.
Detailed description of the invention
Fig. 1 is structural schematic diagram when this mold is opened.
Fig. 2 is the structural schematic diagram that this mold enters matched moulds stage.
Fig. 3 is the partial enlarged view in Fig. 2 at A.
Fig. 4 is the structural schematic diagram after this mold clamping.
Fig. 5 is the partial enlarged view in Fig. 4 at B.
In figure, 1, upper mold；1a, binder platform；1a1, mating surface；2, middle mould；2a, slice part；3, lower die；3a, embryo material are placed
Platform；3b, blocking surface；4, type chamber；5, squeezing passage；6, groove；7, arc groove；8, gap；9, half slot one of torn edges；10, torn edges half
Slot two；11, excessive glue groove；12, mating cavity；13, embryo material；14, U-shaped rubber ring.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Specifically, as shown in Figure 1, it includes upper mold 1, middle mould 2 and lower die 3 that this, which is used to manufacture the mold of U-shaped rubber ring,.Its
In, middle mould 2 is in the form of annular discs, has radially projecting and annular in shape slice part 2a, the thickness of slice part 2a on the outer peripheral surface of middle mould 2
Degree is 0.75mm~1mm.As shown in Figures 2 and 3, type chamber 4, lower die 3 are formed between 3 three of slice part 2a, upper mold 1 and lower die
It is upper that there is the embryo material mounting table 3a settled in a ring and downwards, have in upper mold 1 corresponding with the embryo material position mounting table 3a and downward
It protrudes and binder platform 1a in a ring is formed between binder platform 1a and embryo material mounting table 3a when binder platform 1a enters lower die 3
One section of squeezing passage 5 for 13 pressurized flow of embryo material.3 inner surface of lower die of the peripheral side embryo material mounting table 3a is blocking surface 3b, pressure
Expect that the periphery of platform 1a has the mating surface 1a1 parallel with blocking surface 3b, and the two is inclined-plane, blocking surface 3b is kept off in squeezing passage
5 one end is simultaneously formed between mating surface 1a1 for the gap 8 that upper and lower mould is mobile and embryo material will not be made to run out of, squeezing passage 5
The other end outlet positioned at slice part 2a peripheral side and communicated with type chamber 4.In the present embodiment, there are multiple embryo materials in lower die 3
The inner circumferential side of mounting table 3a, embryo material mounting table 3a have mating cavity 12 compatible with middle 2 shape of mould.
More specifically, the table top of the embryo material mounting table 3a and table top of binder platform 1a is parallel to each other and horizontally disposed plane,
Squeezing passage 5 is formed between above-mentioned two table top and exports, the table surface height position of embryo material mounting table 3a opposite with slice part 2a
At the vertical half of slice part 2a.Also, it is offered in a ring on the table top of binder platform 1a and embryo material mounting table 3a
Groove 6, the positions of two grooves 6 is corresponding up and down, and groove 6 is located at the exit of squeezing passage 5.4 bottom surface of type chamber in upper mold 1
Upper to have arc groove 7 annular in shape, arc groove 7 is located at the surface of slice part 2a.
Again as shown in Figure 4 and Figure 5, middle mould 2 is equipped in a ring on the upper surface and/or lower surface of slice part 2a
Half slot 1 of torn edges is respectively equipped with half slot of annular torn edges corresponding with above-mentioned torn edges half slot, one 9 positions in upper mold 1 and/or lower die 3
2 10, after upper mold 1 and lower die 3 mold, between the upper surface and upper mold 1 of middle mould 2, between the lower surface of middle mould 2 and lower die 3
With gap, above-mentioned half slot 1 of torn edges and half slot 2 10 of torn edges are communicated by corresponding gap with type chamber 4.The upper surface of middle mould 2
On be additionally provided with excessive glue groove 11 in a ring, after upper mold 1 and lower die 3 mold, excessive glue groove 11 is communicated by gap with type chamber 4.
Again as shown in Figures 1 to 5, this mold manufactures to obtain U-shaped rubber ring 14 using stamping technique, specifically manufactures
Journey is as follows: the first step, feeding；Upper mold 1 is opened, cricoid rubber embryo material 13 is put on embryo material mounting table 3a；Second step, pressing mold
Molding；3 mould assembling action of upper mold 1 and lower die, embryo material 13 are first pressurized in squeezing passage 5 and become like form paste, so
It is flow in type chamber 4 by squeezing passage 5 further by molded again afterwards；Third step demoulds blanking；4th step, trimming.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although upper mold 1, binder platform 1a, mating surface 1a1, middle mould 2, slice part 2a, lower die 3, embryo is used more herein
Expect mounting table 3a, blocking surface 3b, type chamber 4, squeezing passage 5, groove 6, arc groove 7, gap 8, half slot 1 of torn edges, half slot of torn edges
2 10, the terms such as excessive glue groove 11, mating cavity 12, embryo material 13, U-shaped rubber ring 14, but the possibility using other terms is not precluded
Property.The use of these terms is merely for the convenience of describing and explaining the nature of the invention；It is construed as any
The additional limitation of one kind is all contrary to the spirit of the present invention.
Claims (8)
1. a kind of for manufacturing the mold of U-shaped rubber ring, including upper mold (1), middle mould (2) and lower die (3), the middle mould (2) is in
It is discoid, there is radially projecting and annular in shape slice part (2a), the slice part on the outer peripheral surface of the middle mould (2)
Type chamber (4) are formed between (2a), upper mold (1) and lower die (3) three, which is characterized in that are put on the lower die (3) with embryo material
It sets platform (3a), there is binder platform (1a) corresponding with the embryo material mounting table position (3a), the binder platform (1a) on the upper mold (1)
Table top with the table top of embryo material mounting table (3a) be plane and parallel, the outside of the embryo material mounting table (3a) has from embryo material
The blocking surface (3b) that the table top of mounting table (3a) upwardly extends, the slice part (2a) and type chamber (4) are located at embryo material mounting table
The inside of (3a).
2. according to claim 1 for manufacturing the mold of U-shaped rubber ring, which is characterized in that the binder platform (1a)
The table-surface level of table top and embryo material mounting table (3a) arrangement, table surface height and slice part (2a) of the embryo material mounting table (3a)
The height of position is consistent at vertical half.
3. according to claim 1 for manufacturing the mold of U-shaped rubber ring, which is characterized in that the binder platform (1a) and
Groove (6) in a ring is offered on the table top of embryo material mounting table (3a), the position of two grooves (6) is corresponding up and down.
4. according to claim 1 or 2 or 3 for manufacturing the mold of U-shaped rubber ring, which is characterized in that the upper mold (1)
There is arc groove (7) annular in shape, the arc groove (7) is located at the surface of slice part (2a) on interior type chamber (4) bottom surface.
5. according to claim 1 or 2 or 3 for manufacturing the mold of U-shaped rubber ring, which is characterized in that the binder platform
The periphery of (1a) has the mating surface (1a1) parallel with blocking surface (3b), and the blocking surface (3b) and mating surface (1a1) are oblique
Face and between the two have gap (8).
6. according to claim 1 or 2 or 3 for manufacturing the mold of U-shaped rubber ring, which is characterized in that the middle mould (2)
Half slot one (9) of torn edges, the upper mold (1) and/or lower die are equipped on the upper surface and/or lower surface of slice part (2a)
(3) half slot two (10) of torn edges corresponding with above-mentioned half slot one (9) position of torn edges is respectively equipped on, when the upper mold (1) and lower die
(3) it after molding, is all had between the upper surface and upper mold (1) of the middle mould (2), between the lower surface of middle mould (2) and lower die (3)
Gap, above-mentioned half slot one (9) of torn edges and half slot two (10) of torn edges are communicated by corresponding gap with type chamber (4).
7. according to claim 1 or 2 or 3 for manufacturing the mold of U-shaped rubber ring, which is characterized in that the middle mould (2)
Upper surface be equipped with excessive glue groove (11) in a ring, after the upper mold (1) and lower die (3) molding, the middle mould (2) it is upper
There is gap, the excessive glue groove (11) is communicated by gap with type chamber (4) between surface and upper mold (1).
8. according to claim 1 or 2 or 3 for manufacturing the mold of U-shaped rubber ring, which is characterized in that the lower die (3)
Interior to have multiple embryo material mounting tables (3a), the inner circumferential side of the embryo material mounting table (3a) has compatible with middle mould (2) shape
Mating cavity (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821517938.0U CN208812377U (en) | 2018-09-17 | 2018-09-17 | It is a kind of for manufacturing the mold of U-shaped rubber ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821517938.0U CN208812377U (en) | 2018-09-17 | 2018-09-17 | It is a kind of for manufacturing the mold of U-shaped rubber ring |
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| Publication Number | Publication Date |
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| CN208812377U true CN208812377U (en) | 2019-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821517938.0U Active CN208812377U (en) | 2018-09-17 | 2018-09-17 | It is a kind of for manufacturing the mold of U-shaped rubber ring |
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| CN (1) | CN208812377U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109016311A (en) * | 2018-09-17 | 2018-12-18 | 浙江海卫科技股份有限公司 | It is a kind of for manufacturing the mold of U-shaped rubber ring |
-
2018
- 2018-09-17 CN CN201821517938.0U patent/CN208812377U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109016311A (en) * | 2018-09-17 | 2018-12-18 | 浙江海卫科技股份有限公司 | It is a kind of for manufacturing the mold of U-shaped rubber ring |
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