CN204294929U - With the extrusion molding dies of inner spiral hole pole - Google Patents
With the extrusion molding dies of inner spiral hole pole Download PDFInfo
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- CN204294929U CN204294929U CN201420727535.4U CN201420727535U CN204294929U CN 204294929 U CN204294929 U CN 204294929U CN 201420727535 U CN201420727535 U CN 201420727535U CN 204294929 U CN204294929 U CN 204294929U
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Abstract
The utility model discloses a kind of extrusion molding dies with inner spiral hole pole, comprise bar shaping mould, core rod seat, flow distribution plate, ring flange and core bar line, bar shaping mould is assemblied in the axial centre of ring flange, core rod seat is assemblied in the axial centre of flow distribution plate, two assembly parts are total to before and after longitudinal center line and assemble, the afterbody of bar shaping mould is stretched in the front end of core rod seat, and core bar line is positioned at bar shaping mould, and its rear end is fixed on core rod seat.The axial centre of bar shaping mould has band spiral fluted endoporus.Ring flange is connected with the extrusion head of extruder, vacuumizes precompressed to the material cylinder of extruder, automatically produces the carbide alloy pole of band inner spiral hole with constant speed extruding cemented carbide bar.Bar is pushed by steady pressure and enters in the endoporus of bar shaping mould, helicla flute along inner hole wall rotates and moves ahead, drive core bar line together to rotate formation inner spiral hole simultaneously, rely on bar shaping mould inner hole wall spiral fluted friction distortion action to make bar rotate and go out.
Description
Technical field
The utility model relates to a kind of bar extruding mould, is specifically related to a kind of extrusion molding dies with inner spiral hole pole.
Background technology
Hard alloy bar with inside spin Cooling Holes is the mainstream product of ultra-fine cemented carbide new and high technology.With the drill bit that this bar production goes out, slotting cutter, screw tap, reamer etc., have the advantages such as good cooling results, chip removal efficiency is high, surface smoothness good, life tools are long.
The equipment of current production inside spin Cooling Holes hard alloy bar is all rely on traditional die cavity and transmission handle, convex mould base, rigid helical line punch, die forms assembling die, as CN1457940A, CN202106568 U and CN203061591 U etc., the rotation of mould mouth is all driven by actuating unit, there is following defect in this structure: first complex structure is so complicated operation, secondly the precision of product affects larger by each side factor, as extruding force, the uniformity etc. of extrusion speed and powder materials, so the profile of product unsightly, size is unstable, also likely crack, qualification rate is low.
Utility model content
The dimensional stability that the purpose of this utility model is to provide a kind of energy to improve is with inner spiral hole carbide alloy pole product, good looking appearance, the extrusion molding dies that qualification rate is high.
The utility model discloses a kind of extrusion molding dies with inner spiral hole pole, comprise bar shaping mould, core rod seat, flow distribution plate, ring flange and core bar line, bar shaping mould is assemblied in the axial centre of ring flange, core rod seat is assemblied in the axial centre of flow distribution plate, two assembly parts are total to before and after longitudinal center line and assemble, the afterbody of bar shaping mould is stretched in the front end of core rod seat, and core bar line is positioned at bar shaping mould, and its rear end is fixed on core rod seat.The axial centre of bar shaping mould has band spiral fluted endoporus.
Described core rod seat comprises the conical cap, cylindrical bar and the spool that connect successively; The basal diameter of conical cap is greater than the diameter of cylindrical bar, conical cap top outwardly, its short transverse center line overlaps with the longitudinal center line of cylindrical bar; Cylindrical bar is hollow stem, and its spool link has shrouding, and two spools are welded on shrouding along the length direction of cylindrical bar, and position is vertical or horizontal axis median plane symmetry about cylindrical bar, is connected as a single entity between two spools by yoke plate.
The outside of described two spools vertically symmetry offers breach.
Described flow distribution plate is convex plectane, and axial centre has the circular hole running through its convex, and the periphery of circular hole is evenly equipped with the axial deflector chute being positioned at convex annulus; The cylindrical bar of described core rod seat is connected in circular hole, spool is positioned at outside convex end, conical cap is positioned at outside the other end of flow distribution plate.
Described bar shaping mould is T-shaped cylindrical bar, and axial centre endoporus is followed successively by continuous print circular hole, indent circular hole and straight hole from head toward bar portion, and the phase cross surface in head and bar portion is crossed in the front end of indent circular hole; Described helicla flute has some groups, and the length direction along straight hole hole wall is uniform; The convex of described flow distribution plate and the circular hole end of bar shaping mould assemble.
Tooth top between described adjacent grooves is circular arc.
The outer wall of described ring flange has the screw thread for being connected with the extrusion head of extruder.
The utility model is connected to form extrusion nozzle device by the screw thread of ring flange outer wall and the extrusion head of extruder, rotate without the need to actuating unit driven mold, structure is simple, only need vacuumize precompressed to the material cylinder of extruder, with constant speed extruding cemented carbide bar, bar shaping mould just can produce the carbide alloy pole of band inner spiral hole automatically.
Principle is as follows: cemented carbide powder is by the propelling movement of extruder steady pressure, deflector chute through flow distribution plate at the uniform velocity enters in the endoporus of bar shaping mould, helicla flute along inner hole wall rotates and moves ahead, the core bar line be fixed on core rod seat is driven together to rotate, the rotation of core bar line forms inner spiral hole, relies on bar shaping mould inner hole wall spiral fluted friction distortion action to make bar rotate and go out.The sizing area of bar shaping mould and the bar minister degree of T-shaped bar longer, the part that pressing material carries out stressed distortion rotation by this mould in extruded process is long, not easily produces plastic deformation, makes the molding effect of bar better, good looking appearance.And threaded hole spiral-shaped in, have the stable guiding of spiral fluted in extrusion process always, can not skid, so threaded hole is evenly spiral-shaped, greatly improve the dimensional stability of threaded hole bar.Simultaneously in screw extrusion process force way evenly, also substantially can not crack, the qualification rate of product increases substantially.
In a word, the utility model can make bar in extrusion process, obtain abundant deformation, and produce stable pitch dimension, dimensional stability is strong.There is the advantages such as assembling is simple, extrusion performance is stablized, good forming effect, less by other influences in extrusion process, product does not crack substantially.
Accompanying drawing explanation
Fig. 1 is that the master of the utility model preferred embodiment looks sectional structure schematic diagram.
Fig. 2 is the structural representation of bar shaping mould in Fig. 1.
Fig. 3 is the structure for amplifying schematic diagram of core rod seat in Fig. 1.
Fig. 4 is that schematic diagram is looked on a left side of Fig. 3.
Fig. 5 is that enlarged diagram is looked on a left side for flow distribution plate in Fig. 1.
Detailed description of the invention
Preferred embodiment, produces as the extrusion nozzle of extruder the carbide alloy pole being with double helix endoporus using this mould.
As shown in Figures 1 to 5, structure disclosed in the present embodiment work comprises bar shaping mould 1, core rod seat 2, flow distribution plate 3, ring flange 4 and core bar line 5, bar shaping mould 1 is assemblied in the axial centre of ring flange 4, core rod seat 2 is assemblied in the axial centre of flow distribution plate 3, and two assembly parts are total to before and after longitudinal center line and assemble.Core bar line 5 is positioned at bar shaping mould 1, and its rear end is fixed on core rod seat 2.The outer wall of ring flange 4 has the screw thread for being connected with the extrusion head 6 of extruder.
Bar shaping mould 1 is the T-shaped cylindrical bar of the axial central bore of band, axial centre endoporus is followed successively by continuous print circular hole 11, indent circular hole 12 and straight hole 13 from head toward bar portion, the phase cross surface in head and bar portion is crossed in the front end of indent circular hole 12, and the hole wall of straight hole 13 is evenly equipped with some groups of helicla flutes along its length.Tooth top between adjacent grooves is circular arc.
Core rod seat 2 comprises the conical cap 21, cylindrical bar 22 and the spool 23 that connect successively.The basal diameter of conical cap 21 is greater than the diameter of cylindrical bar 22, conical cap 21 top outwardly, its short transverse center line overlaps with the longitudinal center line of cylindrical bar 22.Cylindrical bar 21 is hollow stem, and its spool link has shrouding 24, and two spools 23 are welded on shrouding 24 along the length direction of cylindrical bar 21, and position is symmetrical about cylindrical bar 22 horizontal axis median plane, is connected as a single entity between two spools 23 by yoke plate 25.The outside of two spools 23 vertically symmetry offers breach.
In extrusion process, core rod seat 2 is stressed, and the pitch of holes between spool 23 easily changes, and easily produces defective work after sintering, to be connected as a single entity by two spools 23 just to have stopped the excessive too small problem of pitch of holes by yoke plate 25.Core bar line 5 adopts thick nylon wire, and its one end is worn as entered from single line pipe 23 wherein, makes the length on both sides consistent after passing from another root spool 23.
Flow distribution plate 3 is convex plectane, and its axial centre has the circular hole 32 running through convex 31, and the periphery of circular hole 32 is evenly equipped with the axial deflector chute 33 being positioned at convex 31 annulus.
The convex end that cylindrical bar 22 is connected in circular hole 31, spool 23 is positioned at flow distribution plate 3 of core rod seat 2 is outer, conical cap 21 is positioned at outside the other end of flow distribution plate 3.The convex 31 of flow distribution plate 3 assembles with the circular hole end of bar shaping mould 1.Spool 23 stretches in the indent circular hole 12 of bar shaping mould 1.
The utility model is connected to form extrusion nozzle device by the screw thread of ring flange outer wall and the extrusion head of extruder, only need vacuumize precompressed to the material cylinder of extruder, with constant speed extruding cemented carbide bar, bar shaping mould just can produce the carbide alloy pole of band inner spiral hole automatically.
Principle is as follows: cemented carbide powder is by the propelling movement of extruder steady pressure, deflector chute through flow distribution plate at the uniform velocity enters in the endoporus of bar shaping mould, helicla flute along inner hole wall rotates and moves ahead, the core bar line be fixed on core rod seat is driven together to rotate, the rotation of core bar line forms inner spiral hole, relies on bar shaping mould inner hole wall spiral fluted friction distortion action to make bar rotate and go out.The sizing area of bar shaping mould and the bar minister degree of T-shaped bar longer, the part that pressing material carries out stressed distortion rotation by this mould in extruded process is long, not easily produces plastic deformation, makes the molding effect of bar better, good looking appearance.And threaded hole spiral-shaped in, have the stable guiding of spiral fluted in extrusion process always, can not skid, so threaded hole is evenly spiral-shaped, greatly improve the dimensional stability of threaded hole bar.Simultaneously in screw extrusion process force way evenly, also substantially can not crack, the qualification rate of product increases substantially.
Claims (7)
1. the extrusion molding dies with inner spiral hole pole, it is characterized in that: it comprises bar shaping mould, core rod seat, flow distribution plate, ring flange and core bar line, bar shaping mould is assemblied in the axial centre of ring flange, core rod seat is assemblied in the axial centre of flow distribution plate, two assembly parts are total to before and after longitudinal center line and assemble, the afterbody of bar shaping mould is stretched in the front end of core rod seat, and core bar line is positioned at bar shaping mould, and its rear end is fixed on core rod seat; The axial centre of bar shaping mould has band spiral fluted endoporus.
2. the extrusion molding dies of band inner spiral hole pole as claimed in claim 1, is characterized in that: described core rod seat comprises the conical cap, cylindrical bar and the spool that connect successively; The basal diameter of conical cap is greater than the diameter of cylindrical bar, and outwardly, its short transverse center line overlaps with the longitudinal center line of cylindrical bar on the top of conical cap; Cylindrical bar is hollow stem, and its spool link has shrouding, and two spools are welded on shrouding along the length direction of cylindrical bar, and position is vertical or horizontal axis median plane symmetry about cylindrical bar, is connected as a single entity between two spools by yoke plate.
3. the extrusion molding dies of band inner spiral hole pole as claimed in claim 2, is characterized in that: the outside of described two spools vertically symmetry offers breach.
4. the extrusion molding dies of band inner spiral hole pole as claimed in claim 2, it is characterized in that: described flow distribution plate is convex plectane, and axial centre has the circular hole running through its convex, the periphery of circular hole is evenly equipped with the axial deflector chute being positioned at convex annulus; The cylindrical bar of described core rod seat is connected in circular hole, spool is positioned at outside convex end, conical cap is positioned at outside the other end of flow distribution plate.
5. the extrusion molding dies of band inner spiral hole pole as claimed in claim 4, it is characterized in that: described bar shaping mould is T-shaped cylindrical bar, its axial centre endoporus is followed successively by continuous print circular hole, indent circular hole and straight hole from head toward bar portion, and the phase cross surface in head and bar portion is crossed in the front end of indent circular hole; Described helicla flute has some groups, and the length direction along straight hole hole wall is uniform; The convex of described flow distribution plate and the circular hole end of bar shaping mould assemble.
6. the extrusion molding dies of band inner spiral hole pole as claimed in claim 5, is characterized in that: the tooth top between described adjacent grooves is circular arc.
7. the extrusion molding dies of band inner spiral hole pole as claimed in claim 1, is characterized in that: the outer wall of described ring flange has the screw thread for being connected with the extrusion head of extruder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420727535.4U CN204294929U (en) | 2014-11-28 | 2014-11-28 | With the extrusion molding dies of inner spiral hole pole |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420727535.4U CN204294929U (en) | 2014-11-28 | 2014-11-28 | With the extrusion molding dies of inner spiral hole pole |
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| CN204294929U true CN204294929U (en) | 2015-04-29 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251800A (en) * | 2015-11-27 | 2016-01-20 | 浙江中质合金材料有限公司 | Method for processing hard alloy twin-screw-hole rod extrusion die |
| CN109702191A (en) * | 2018-12-21 | 2019-05-03 | 西安瑞福莱钨钼有限公司 | A kind of preparation method of high-precision dynamic balancing rotary anode target |
| CN111468732A (en) * | 2020-04-29 | 2020-07-31 | 江西耀升钨业股份有限公司 | Hard alloy cutter with internal spiral cooling liquid hole and production equipment thereof |
| CN115591968A (en) * | 2022-10-10 | 2023-01-13 | 吉林大学（Cn） | Opposite spiral torsion extrusion die for high-performance plate |
| CN118080855A (en) * | 2024-04-28 | 2024-05-28 | 合肥工业大学 | In-situ forming device for Y-shaped piece of aluminum-based composite material |
-
2014
- 2014-11-28 CN CN201420727535.4U patent/CN204294929U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251800A (en) * | 2015-11-27 | 2016-01-20 | 浙江中质合金材料有限公司 | Method for processing hard alloy twin-screw-hole rod extrusion die |
| CN109702191A (en) * | 2018-12-21 | 2019-05-03 | 西安瑞福莱钨钼有限公司 | A kind of preparation method of high-precision dynamic balancing rotary anode target |
| CN111468732A (en) * | 2020-04-29 | 2020-07-31 | 江西耀升钨业股份有限公司 | Hard alloy cutter with internal spiral cooling liquid hole and production equipment thereof |
| CN115591968A (en) * | 2022-10-10 | 2023-01-13 | 吉林大学（Cn） | Opposite spiral torsion extrusion die for high-performance plate |
| CN118080855A (en) * | 2024-04-28 | 2024-05-28 | 合肥工业大学 | In-situ forming device for Y-shaped piece of aluminum-based composite material |
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