CN205630941U - Ceramic nozzle isostatic compaction mould - Google Patents

Ceramic nozzle isostatic compaction mould Download PDF

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Publication number
CN205630941U
CN205630941U CN201620492182.3U CN201620492182U CN205630941U CN 205630941 U CN205630941 U CN 205630941U CN 201620492182 U CN201620492182 U CN 201620492182U CN 205630941 U CN205630941 U CN 205630941U
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CN
China
Prior art keywords
gum cover
mold
cone
frustum
mould
Prior art date
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 - Fee Related
Application number
CN201620492182.3U
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Chinese (zh)
Inventor
保玉芝
赵文林
李虎
赵强
蒋学文
瞿建军
何振宝
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NINGXIA MACHINERY RESEARCH INSTITUTE Co Ltd
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NINGXIA MACHINERY RESEARCH INSTITUTE Co Ltd
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Priority to CN201620492182.3U priority Critical patent/CN205630941U/en
Application granted granted Critical
Publication of CN205630941U publication Critical patent/CN205630941U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a mold, ceramic nozzle isostatic compaction mould especially, forming die, including the gum cover, install the mould inner core in the gum cover and install the rubberizing lid at the fixed mould inner core in gum cover upper end, its characterized in that is equipped with the rigidity outer mould supporting with the gum cover at above -mentioned gum cover overcoat, the equipartition has the through -hole on the outer disc of mould outside the rigidity, the mould lower extreme is fixed with mounting flange outside the rigidity, mounting flange is installed to the mould up end outside the rigidity, the rubberizing is covered and is installed the upper end in the gum cover. The technical scheme of the utility model having the axiality that can effectively guarantee nozzle mould inner core, can effectively preventing the characteristics such as phenomenon emergence of blank atress fracture when the loosening bolt, adopt rigidity, flexible composite construction and positioner from top to bottom simultaneously, can effectively guarantee the size precision such as appearance, shape of concentricity and the ceramic blank of mould inner core and steel overcoat, reduced the allowance of follow -up processing on the one hand, on the other hand is the reduction in the number of rejects effectively, puies forward high pressure heater work efficiency rate.

Description

Ceramic nozzle isostatic pressing mold
Art
This utility model relates to a kind of mould, particularly a kind of ceramic nozzle isostatic pressing mold.
Background technology
Nozzle is widely used in all trades and professions such as machinery, oil, chemical industry, automobile, boats and ships, Aero-Space, metallurgy, coal, is surface peening, surface clean, surface spraying, surface modification, etc. one of critical component in plant equipment.Nozzle can support the use with various dry types or efficiency wet type sand blasting machine, compressed air shotblasting machine, and almost all of Engineering Machinery Plant is required for using sandblasting or shot blasting equipment to carry out surface process.Various plant equipment, pipeline etc., before spraying paint, need surface is carried out sandblasting or bead;The various pipelines of petroleum industry need to be carried out with sandblasting.The range of nozzle almost covers all machinery manufacturing industry, and its demand is huge.
The method making nozzle has a variety of, such as injection forming, dry-pressing formed, extrusion molding, isostatic pressing.Injection forming needs to be familiar with the key parameter such as slurry solid content and plaster mold water absorption rate, complex technical process, and is difficult to prepare the product that density is higher.During dry-pressing formed compacting length bigger workpiece, blank is easy to crack, causes product length limited.Extrusion molding relates to the complex technical process such as pug moisture, plasticity.And the method for isostatic pressed has only to cementitious preferable powder and mould gets final product pressed blanks, and the nozzle that length is bigger can be made, and owing to base substrate all directions pressure is consistent, base substrate each position consistent in density, sintered body internal density reaches unanimity, and is conducive to improving the service life of nozzle.The demoulding for convenience, much the most conventional ceramic nozzle isostatic pressing mold is stagewise, connects with slot each other.nullChinese patent " a kind of single spraying head ceramic nozzle isostatic pressing mold inner core " Patent Office of the People's Republic of China authorizes disclosed Patent No. 201210401043.1 on May 19th, 2015,The utility model patent of utility model entitled " a kind of single spraying head ceramic nozzle isostatic pressing mold inner core ",Owing to the technical scheme of this patent is to be integrated by bolt combination with the frustum of a cone by long conical rod,Combinatorial surface between two parts is two anchor rings,After combining it is difficult to ensure that the axiality in two part axle center,Simultaneously because the intensity for inner core of the blank after hydrostatic profile、Rigidity is the lowest,During unscrewing bolt,Due to when long conical rod and the frustum of a cone are the most concentric or long conical rod relatively rotates with the frustum of a cone,Will result in the dislocation of long conical rod and the frustum of a cone,Blank is made to be easy to ftracture by the active force of inner core,Form waste product.
Isostatic pressing is to utilize the Incoercibility of liquid medium and uniformly transfer the characteristic of pressure by the powder that is contained in elastic mould by the way of airtight pressurization, become to have effigurate high-compactness base substrate by loose powder pressing, base substrate has each position consistent in density, end properties is stable, uniform texture, is therefore widely used.At present in the manufacturing process of ceramic, the general mode using isostatic pressing prepares blank.Patent No. 201120051785.7 as disclosed in Patent Office of the People's Republic of China's December in 2011 authorizes on the 14th, patent name is the technical scheme of " a kind of isostatic pressing mold ", disclose one and include mould SMIS, mold base, mould SMIS upper end is provided with mould top cover, it is additionally provided with gum cover outside mould SMIS, gum cover upper and lower side is respectively arranged with on gluing lid and lower Jiao Gai, gluing lid and lower Jiao Gai and is respectively coated by mould top cover and mold base.In actual application, when this mould is put in equal pressing equipment, on the one hand after gum cover is by immense pressure, extruding plug makes plug deform, cause inner core deviation gum cover place axis that bias i.e. occurs, on the other hand due to ceramic powders Density inhomogeneity in gum cover and still have certain mobility, after the direct pressurized of gum cover, the circularity of base substrate cylindrical is very poor, and two top covers limit gum cover deformation during pressurized, the flatness error causing blank upper and lower surface is big, adds following process amount.
Summary of the invention
This utility model is for problems of the prior art, it is provided that a kind of axiality that can effectively ensure that mold core and outer mold, and has the ceramic nozzle isostatic pressing mold being convenient in demoulding.
For realizing the purpose of this utility model, be the technical scheme is that a kind of ceramic nozzle isostatic pressing mold, the mold core that including gum cover, is arranged in gum cover and be arranged on gum cover upper end and fix the gluing lid of mold core, it is characterized in that outside above-mentioned gum cover, be set with the rigidity outer mold supporting with gum cover, the periphery of rigidity outer mold is evenly equipped with through hole, it is fixed with mounting flange in rigidity outer mold lower end, being provided with locating flange in rigidity outer mold upper surface, gluing lid is arranged on the upper end in gum cover.
Above-mentioned locating flange has the seam supporting with rigidity outer mold upper surface, has the location hole supporting with mold core upper end cylindrical in the center of locating flange.
Above-mentioned mold core is by long conical rod, the frustum of a cone and by long conical rod, the bolt composition that the frustum of a cone links into an integrated entity, a diameter is had to be less than short axle or the endoporus of this end face diameter on the end face that the longest circular cone shank diameter is less, the hole matched with the long short axle of circular cone rod end surface or the short axle matched with long circular cone rod end surface endoporus is had with long conical rod on the end face matched on the frustum of a cone, have, on short axle on long conical rod or the end face in endoporus, the internal thread hole matched with bolt, frustum of a cone lower end periphery there is an annular groove, one is had along its axial elongated slot in rigidity outer mold lower end and annular groove corresponding position.
The short axle of above-mentioned long circular cone rod end surface is splined shaft, and the hole of the frustum of a cone end face matched with splined shaft is internal splined hole.
The endoporus of above-mentioned long circular cone rod end surface is internal splined hole, and the little short axle of the frustum of a cone end face matched with internal splined hole is splined shaft.
The flange I matched with end flanges under rigidity outer mold it is fixed with in above-mentioned mold core lower surface.
The technical solution of the utility model has the following characteristics that
1, can effectively ensure that the axiality of nozzle mold inner core.Due to the technical solution of the utility model by the attachment structure of nozzle mold inner core from plane contact become cylinder and endoporus be connected or spline is connected, can effectively ensure the axiality of nozzle mold inner core two component assembling process, it is ensured that nozzle is the axiality of inner bore of part after isostatic pressing;
2, can effectively prevent the phenomenon of blank stress cracking when unscrewing bolt from occurring.Owing to using spline to connect, the rotation between long conical rod and the frustum of a cone can be effectively prevented when unscrewing bolt, cause blank by long conical rod or the radial force of the frustum of a cone, make the blank after hydrostatic profile become the phenomenon of cracking to occur, can effectively improve the qualification rate of nozzle blank;
3, the technical solution of the utility model uses rigidity, flexible composite construction, by steel overcoat and the locating flange supporting with it, can effectively ensure that mold core and the concentricity of steel overcoat and the profile of ceramic blank, shape equidimension precision, on the one hand the allowance of following process is decreased, on the other hand can effectively reduce the number of rejects and seconds rate, improve working (machining) efficiency.
Accompanying drawing explanation
Accompanying drawing 1 is this utility model assembling of the present utility model structural representation;
Accompanying drawing 2 is the structural representation of this utility model embodiment 1;
Accompanying drawing 3 is the structural representation of the long conical rod of this utility model embodiment 1;
Accompanying drawing 4 is the structural representation of this utility model embodiment 1 frustum of a cone;
Accompanying drawing 5 is the structural representation of this utility model embodiment 2;
Accompanying drawing 6 is the structural representation of the long conical rod of this utility model embodiment 2;
Accompanying drawing 7 is the end face structure schematic diagram of the long conical rod of this utility model embodiment 2;
Accompanying drawing 8 is the structural representation of this utility model embodiment 2 frustum of a cone;
Accompanying drawing 9 is the end face structure schematic diagram of this utility model embodiment 2 frustum of a cone.
Detailed description of the invention
Embodiment 1:
As shown in Figure 1,2,3, 4, it is set with gum cover in rigidity outer mold 5, the periphery of rigidity outer mold is evenly equipped with through hole 7, in the upper surface of rigidity outer mold, locating flange 1 is installed, the seam supporting with rigidity outer mold upper surface is had on locating flange, the location hole supporting with mold core 3 upper end cylindrical is had in the center of locating flange, locating flange is fixed on rigidity outer mold upper surface by screw 2, by the seam on locating flange and hole, location, it is ensured that mold core and the concentricity of rigidity outer mold.
Mold core is arranged in gum cover 6, and the upper end of mold core is fixed in gum cover by gluing lid 4 and the locating flange being arranged in gum cover.Rigidity outer mold lower end is fixed with mounting flange 9, the flange I 10 matched with end flanges under rigidity outer mold it is fixed with in mold core lower surface, gum cover lower end is fixed in the annular groove of mold core lower end periphery by iron wire 11, and iron wire joint is positioned at rigidity outer mold lower end with annular groove corresponding position along its axial elongated slot 12.Two flanges are fixed by the lower end of mold core and rigidity outer mold by bolt 8, and between two flanges, the seam by complementing one another ensures concentricity.
On the small end of 13 i.e. the end face of lower end of long conical rod, there is the diameter short axle 19 less than this end face diameter, the end face matched with long conical rod on the frustum of a cone 14 has the hole 20 matched with the long short axle of circular cone rod end surface.During assembly jig inner core, the short axle of long conical rod lower end is inserted the hole of frustum of a cone upper surface, due to when processing long conical rod and the frustum of a cone, short axle and Kong Yuchang conical rod and the axiality of frustum of a cone periphery or concentricity can be ensured, by bolt through the bolt hole 15 on the frustum of a cone long conical rod and the frustum of a cone are assembled into one time, its cooperation face is mainly the cooperation in short axle and hole, so that it may the axiality of the effective isostatic pressing mold inner core ensureing long conical rod and frustum of a cone composition.
Having annular groove on the lower end periphery of the frustum of a cone, be used for fixing gum cover 6 lower end, the frustum of a cone lower surface in mold core is fixed with the flange I 10 matched with end flanges under rigidity outer mold.
On the basis of above-described embodiment, change the short axle of long conical rod lower end into hole, the hole of frustum of a cone upper surface is changed the short axle matched with the hole of long conical rod lower end into, it is possible to realize this utility model purpose.
During use, first gum cover lower end is fixed in the annular groove of mold core lower end periphery, it is bolted by the flange of the flange I of mold core lower end with rigidity outer mold lower end, then ceramic powder is loaded in the cavity of gum cover and the formation of mold core outer surface by gum cover upper end, after making ceramic powder degree of compaction in mould uniformly after vibrations, gluing lid is loaded gum cover upper end, locating flange is fixed on rigidity outer mold upper end, so that it may put in equal pressing equipment and pressurize.
It is the best that base substrate internal-external circle concentricity after pressurization keeps, and roundness of external circle and surfacing good, the processing capacity in later stage can be significantly reduced.
Embodiment 2:
As shown in Fig. 1,5,6,7,8,9, on the basis of embodiment 1, changing the short axle on long conical rod or the frustum of a cone or hole into splined shaft or the splined hole matched therewith, so that it may be effectively ensured when unclamping bolt, long conical rod and the frustum of a cone will not produce and rotate against
In figure: 13 be long conical rod, 14 be the frustum of a cone, 15 be bolt hole, 17 be match with bolt female thread, 18 be internal splined hole, 19 for splined shaft.
On the basis of above-described embodiment, change the internal splined hole of long conical rod lower end into splined shaft, the splined shaft of frustum of a cone upper surface is changed the internal splined hole matched with the splined shaft of long conical rod lower end into, it is possible to realize this utility model purpose.

Claims (6)

1. a ceramic nozzle isostatic pressing mold, the mold core that including gum cover, is arranged in gum cover and be arranged on gum cover upper end and fix the gluing lid of mold core, it is characterized in that outside above-mentioned gum cover (6), be set with the rigidity outer mold (5) supporting with gum cover, the periphery of rigidity outer mold is evenly equipped with through hole (7), it is fixed with mounting flange (9) in rigidity outer mold lower end, locating flange (1), the upper end that gluing lid (4) is arranged in gum cover are installed in rigidity outer mold upper surface.
Ceramic nozzle isostatic pressing mold the most according to claim 1, it is characterized in that on above-mentioned locating flange (1), have the seam supporting with rigidity outer mold (5) upper surface, have the location hole supporting with mold core (3) upper end cylindrical in the center of locating flange.
Ceramic nozzle isostatic pressing mold the most according to claim 2, it is characterized in that above-mentioned mold core (3) is by long conical rod (13), the frustum of a cone (14) and by long conical rod, the bolt composition that the frustum of a cone links into an integrated entity, a diameter is had to be less than short axle or the endoporus of this end face diameter on the end face that the longest circular cone shank diameter is less, the hole matched with the long short axle of circular cone rod end surface or the short axle matched with long circular cone rod end surface endoporus is had with long conical rod on the end face matched on the frustum of a cone, have, on short axle on long conical rod or the end face in endoporus, the internal thread hole matched with bolt, frustum of a cone lower end periphery has an annular groove (16), one is had along its axial elongated slot (12) in rigidity outer mold (5) lower end and annular groove corresponding position.
Ceramic nozzle isostatic pressing mold the most according to claim 3, it is characterised in that the short axle of above-mentioned long conical rod (13) end face is splined shaft, the hole of the frustum of a cone (14) end face matched with splined shaft is internal splined hole.
Ceramic nozzle isostatic pressing mold inner core the most according to claim 3, it is characterised in that the endoporus of above-mentioned long conical rod (13) end face is internal splined hole, the little short axle of the frustum of a cone (14) end face matched with internal splined hole is splined shaft.
6. according to the ceramic nozzle isostatic pressing mold described in claim 4 or 5, it is characterised in that be fixed with the flange I (10) matched with end flanges (9) under rigidity outer mold (5) in above-mentioned mold core (3) lower surface.
CN201620492182.3U 2016-05-26 2016-05-26 Ceramic nozzle isostatic compaction mould Expired - Fee Related CN205630941U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620492182.3U CN205630941U (en) 2016-05-26 2016-05-26 Ceramic nozzle isostatic compaction mould

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620492182.3U CN205630941U (en) 2016-05-26 2016-05-26 Ceramic nozzle isostatic compaction mould

Publications (1)

Publication Number Publication Date
CN205630941U true CN205630941U (en) 2016-10-12

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Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105881717A (en) * 2016-05-26 2016-08-24 宁夏机械研究院股份有限公司 Isostatic compaction mold for ceramic nozzle
CN111483171A (en) * 2020-04-22 2020-08-04 四川士达特种炭材有限公司 Isostatic pressing graphite barrel material forming die and isostatic pressing cylindrical graphite processing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105881717A (en) * 2016-05-26 2016-08-24 宁夏机械研究院股份有限公司 Isostatic compaction mold for ceramic nozzle
CN105881717B (en) * 2016-05-26 2018-04-06 宁夏机械研究院股份有限公司 Ceramic nozzle isostatic pressing mold
CN111483171A (en) * 2020-04-22 2020-08-04 四川士达特种炭材有限公司 Isostatic pressing graphite barrel material forming die and isostatic pressing cylindrical graphite processing method

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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: 20161012

Termination date: 20210526