CN208649143U - A kind of symmetrical carbon pipe shaping mould - Google Patents
A kind of symmetrical carbon pipe shaping mould Download PDFInfo
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- CN208649143U CN208649143U CN201821158977.6U CN201821158977U CN208649143U CN 208649143 U CN208649143 U CN 208649143U CN 201821158977 U CN201821158977 U CN 201821158977U CN 208649143 U CN208649143 U CN 208649143U
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- cavity
- plug
- carbon pipe
- pressure head
- lower die
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Abstract
The purpose of the utility model is to provide a kind of symmetrical carbon pipe shaping moulds, including lower die, plug, cylindrical mandrel and pressure head；Cavity is set inside lower die, and upper end cavity is cylinder, middle-end cavity is the up big and down small centrum of outer diameter or bowl-shape cavity, lower end cavity are cylindrical, rounding off at cavity diameter variation；Plug outer diameter and lower end cavity cooperate；Pressure head top is that cylindrical or cuboid, pressure head lower part are the cylinder cooperated with upper end cavity, and the lower surface on pressure head top is contacted with lower die upper surface；Inside cavity setting and the body concentric cylindrical mandrel of chamber, cylindrical mandrel one end is fixed；It is corresponding with cylindrical mandrel that through-hole is set on pressure head and plug；The mold cavity of any one half shape of the correspondence that lower die, plug, cylindrical mandrel and pressure head surround carbon pipe symmetrical above and below.The symmetrical carbon pipe assembling that the utility model mold can produce half uses.Pressure transmits uniform, carbon pipe better quality in pressing process, and yield rate is higher.
Description
Technical field
The utility model belongs to superhard material high-pressure synthesis field, and in particular to a kind of symmetrical carbon pipe shaping mould.
Background technique
Cubic boron nitride extreme hardness is only second to diamond, is the material of inserted tool.The process that cubic boron nitride is made
In, wherein have a step need will raw material and catalyst mix after be pressed into cylindric bar and be put into carbon pipe, carbon pipe electrified regulation.?
During high-temperature pressurizing, carbon tube resistor, which changes, influences the stabilization of electric current.There are metallic conduction steel ring, two in existing structure both ends
Both ends temperature is lower than centre when holding thermally conductive very fast, heating.Medium temperature is high, be easy to cause baked waist phenomenon, causes to synthesize intracavitary office
Portion's non-uniform temperature.Therefore, a kind of internal cavity can be made as cylinder, external outer diameter is shape broad in the middle small in ends
Carbon pipe, such as middle section are arc-shaped to keep middle section resistance small, and fever is few, to balance the temperature for synthesizing intracavitary portion
Carbon pipe.Nobody did the process that the carbon pipe of this shape is used to manufacture cubic boron in the past, and also nobody did this
The mold of shape carbon pipe.
Summary of the invention
The purpose of the utility model is to provide a kind of symmetrical carbon pipes of carbon pipe after simple, easily manufactured, automatic release molding
Molding die.
The purpose of this utility model is achieved in that a kind of symmetrical carbon pipe shaping mould, including lower die, stifled
Head, cylindrical mandrel and pressure head；Cavity is set inside lower die, and upper end cavity is cylinder, middle-end cavity is that outer diameter is up big and down small
Centrum or bowl-shape cavity, lower end cavity are cylinder, rounding off at cavity diameter variation；Plug outer diameter is matched with lower end cavity
It closes；Pressure head top is that cylindrical or cuboid, pressure head lower part are the cylinder cooperated with upper end cavity, the following table on pressure head top
Face is contacted with lower die upper surface；Inside cavity setting and the body concentric cylindrical mandrel of chamber, cylindrical mandrel one end is fixed；Pressure head and stifled
It is corresponding with cylindrical mandrel that through-hole is set on head；The correspondence that lower die, plug, cylindrical mandrel and pressure head surround carbon pipe symmetrical above and below
The mold cavity of any one half shape.
Plug is projection shape, the nose-circle cylinder being arranged concentrically including bottom end cylindrical body and thereon；Outside the cylindrical body of bottom end
Diameter is greater than nose-circle cylinder, nose-circle cylinder and lower end cavity corresponding matching.
Lower die is arranged on the support frame, and opening is arranged on support frame, and plug bottom end cylindrical member at one end is arranged under support frame
Side, the plug other end pass through the lower end cavity that the opening on support frame enters lower die；Pressure-bearing platform, plug bottom are set below support frame
It holds and cylinder is set below cylindrical body, connected between cylinder piston head and plug bottom end cylindrical body by buffer spring；Cylinder compression
Under state, plug is arranged on pressure-bearing platform, and under cylinder elongation state, plug moves up ejection carbon pipe after molding.
Lower die is arranged in the bottom end cylindrical body upper surface of plug and locating device for positioning pin is arranged between the cylindrical body of bottom end.
The beneficial effects of the utility model are: the both ends that produce of the utility model are thick, intermediate thin carbon pipe for cube
The manufacturing process of boron nitride, can effective balance carbon pipe temperature, avoid baked waist phenomenon.To improve the service life of carbon pipe and stand
The quality of square boron nitride.Mould structure is simple, installation is facilitated to manufacture, at low cost.The utility model mold can produce half
Symmetrical carbon pipe, be used in combination by two half carbon pipes.Mold is simpler than once producing entire carbon pipe in this way.And
The outer diameter of pressure head is equal to the maximum outer diameter of carbon pipe, and pressure transmits uniform, carbon pipe better quality in pressing process, and yield rate is higher.
The half carbon pipe manufactured is difficult to voluntarily take out, and is released using cylinder, convenient and efficient.
Detailed description of the invention
Fig. 1 is the utility model embodiment 1.
Fig. 2 is Fig. 1 explosive view.
Fig. 3 is 1 two kinds of carbon tube shape schematic diagrames of embodiment.
Fig. 4 is the utility model embodiment 2.
Fig. 5 is Fig. 4 explosive view.
Fig. 6 is 2 two kinds of carbon pipe schematic diagrames of embodiment.
Fig. 7 is the utility model embodiment 3.
Fig. 8 is that Fig. 7 cylinder extends pusher schematic diagram.
1 it is wherein upper mold, 2 be lower die, 3 be pressure head, 4 be plug, 5 be cylindrical mandrel, 6 be cavity, 7 be cylindrical cavity, 8 is
Cavity, 9 be press bench, 10 be piston rod, 11 be pin shaft, 12 be pin hole, 13 be support frame, 14 be pressure-bearing platform, 15 be
Cylinder, 16 are buffer spring.
Specific embodiment
As shown in Figure 1-3, a kind of cubic boron nitride manufacture arc carbon pipe shaping mould embodiment 1: including upper mold 1, under
Mould 2, cylindrical mandrel 5, pressure head 3 and plug 4.Upper mold 1 and lower die 2 are cylinder, and cavity 3 is arranged inside；Lower die 2 is arranged upper
On mould 1 and its cavity 3 and the cavity 3 of upper mold 1 surround top and bottom be it is cylindrical, intermediate cross-section is round and diameter than upper
End and the big cavity 8 in lower end, rounding off at 8 diameter change of cavity.Above the cavity 3 of lower die 1 be cylindrical cavity 7, cylindrical cavity 7 with
The corresponding positioning device for constituting upper mold 1 of cylindrical upper mold 1,1 lower surface of upper mold and 2 cylindrical cavity of lower die, 7 following table face contact；Positioning
Device can make upper mold 1 and 2 installation site of lower die correct, guarantee concentric.Setting can between 7 side wall of 1 side wall of upper mold and cylindrical cavity
Dismantling connection device.When pressure head 3 is pressed downward, upper mold 1 and lower die 2 can be made to separate to the upward reaction force of upper mold 1 by pressure material,
Setting detachable connecting device can prevent 1 lower die 2 of upper mold separate and also it is easy to disassemble separated.Setting and cavity 8 are same in cavity 8
The cylindrical mandrel 5 of axis, 5 lower end of cylindrical mandrel are fixed on press bench 9.Plug 4 is arranged on press bench 9
And the upper end and 8 lower end of cavity cooperate；Pressure head 3 is arranged on rampiston bar 10 and its lower end and 8 upper end of cavity cooperate.It is stifled
First 4 and pressure head 3 in setting with cylindrical mandrel 5 cooperate through-hole.Upper mold 1, lower die 2, cylindrical mandrel 5, pressure head 3 and plug 4 surround
With the consistent mold cavity of carbon tube shape.
It is equivalent in lower die 2 provided with stepped hole, first layer hole is cylindrical cavity 7, and the second layer is cavity 3.2 cylindrical cavity of lower die
7 at least two pin shaft 11 of lower surface setting is positioned with the pin shaft 12 in upper mold 1.Specific plug 4, pressure head 3, cylindrical mandrel 5, on
The matching relationship in aperture can have with reference to pervious cylindrical carbon control modeling between mould 1 and lower die 2.In the past in cubic boron nitride
Manufacture in, all the use of shape is cylindrical carbon pipe.Nobody expects that thick using centre, both ends are thin, diameter rounding off
Carbon pipe realizes that temperature is even by changing resistance.Needless to say the dedicated mold of manufacture produces such carbon pipe.The utility model
Mold can produce such carbon pipe, make cubic boron nitride manufacture in carbon tube temperature degree uniformly, improve service life of carbon pipe and vertical
The quality of square boron nitride.
At least one pin hole 12 is arranged in the surface that lower die 2 contacts upper mold 1, protrusion corresponding with pin hole 12 is arranged in upper mold 1
Pin shaft 11 is realized the positioning of 1 lower die 2 of upper mold by pin shaft 11 and pin hole 12, prevents from rotating between upper mold 1 and lower die 2.It is stifled
First 4 be projection shape, the nose-circle cylinder being arranged concentrically including bottom end cylindrical body and thereon；Bottom end cylindrical body outer diameter is greater than top
Cylindrical body, nose-circle cylinder and cavity lower end corresponding matching；Lower die 2 be arranged on the cylindrical body upper surface of bottom end and with bottom end cylinder
Locating device for positioning pin is set between body.The outer diameter of pressure head 3 is no more than the diameter of 8 upper end of cavity, facilitates pressure head 3 to push and enters sky
Chamber 8.
The sideline endpoint that the both ends of 8 longitudinal section of cavity are rectangle, both ends rectangle is ipsilateral is by circular sliding slopes.Or cavity
The cone for transition that 8 both ends are cylindrical body, among cavity to be between the biggish cylindrical body of radius, 8 both ends of cavity and air centre be
Body.The carbon pipe of formation is as shown in figure 3, there is much the specification of carbon pipe in specific production, such as carbon pipe is 44 millimeters high, wall thickness maximum
2.5 millimeters, minimum at 0.8 millimeter.
When it is implemented, plug 4 and cylindrical mandrel 5 are fixed on press bench 9, lower die 2 is placed into plug 4
On, 4 nose-circle cylinder of plug enters in the cavity of lower die 2.Upper mold 1 is put into the cylindrical cavity 7 of lower die 2 makes pin shaft 11 enter pin
Hole 12 positions.It is connected with 7 side wall of 1 side wall of upper mold and 2 cylindrical cavity of lower die, fixes upper and lower position between upper mold lower die.It will
The raw material of fixed weight is put into cavity 8, and press machine band dynamic head 3 is depressed into scheduled position.After the completion of compacting, pressure head 3 is moved
It opens.It takes upper mold 1 away, carbon pipe is taken out.The utility model does not need specially to make clamping tool, it is only necessary to upper die and lower die positioning
It is accurate.And mold is simple and convenient.
The mold of above-described embodiment can once produce the carbon pipe of completion.But because the outer diameter of pressure 3 is not carbon
The diameter of pipe maximum, pressure head 3 needs to push the needs that enough distances are just able to satisfy compacting in pressing process.For right up and down
The carbon pipe of title, can design and manufacture the mold of half carbon pipe.Two half carbon pipes are combined use.
As shown in Figure 4-8, a kind of molding die of symmetrical carbon pipe, including lower die 2, plug 4, cylindrical mandrel 5 and pressure head 3；
Cavity 6 is set inside lower die 2, and cavity 6 divides for upper end cavity, middle-end cavity and lower end cavity.Upper end cavity is cylindrical, middle-end
Cavity is the up big and down small centrum of outer diameter or bowl-shape cavity, lower end cavity are cylindrical, round and smooth mistake at 6 diameter change of cavity
It crosses.Upper end cavity largest outside diameter, middle-end cavity outer diameter are greater than lower end cavity.Middle-end cavity is also possible between two parallel planes
Sphere, outer diameter is up big and down small.4 outer diameter of plug and lower end cavity cooperate；3 top of pressure head is cylindrical or cuboid, pressure
First 3 lower part is the cylinder cooperated with upper end cavity, and the lower surface on 3 top of pressure head is contacted with 2 upper surface of lower die, determines pressure head
3 distances moved in cavity 6.Cylindrical core 5 mould concentric with cavity 6 is set inside cavity 6, and 5 one end of cylindrical mandrel is fixed.Pressure
First 3 and plug 4 on setting through-hole it is corresponding with cylindrical mandrel 5.In the correspondence that lower die 2, plug 4, cylindrical mandrel 5 and pressure head 3 surround
The mold cavity of any one half shape of symmetrical carbon pipe down.
Plug 4 is projection shape, the nose-circle cylinder being arranged concentrically including bottom end cylindrical body and thereon；Outside the cylindrical body of bottom end
Diameter is greater than nose-circle cylinder, nose-circle cylinder and lower end cavity corresponding matching.
As Figure 7-8, in a kind of molding die embodiment 3 of symmetrical carbon pipe, lower die 2 is arranged on support frame 13, branch
Opening is set on support 13, and 4 bottom end cylindrical member at one end of plug is arranged below support frame 13, and 4 other end of plug passes through support frame
Opening on 13 enters the lower end cavity of lower die 2；Pressure-bearing platform 14 is set below support frame 13, is set below 4 bottom end cylindrical body of plug
Cylinder 15 is set, is connected between 4 bottom end cylindrical body of 15 piston head of cylinder and plug by buffer spring 16；15 compressive state of cylinder
Under, plug 4 is arranged on pressure-bearing platform 14, and under 15 elongation state of cylinder, plug 4 moves up ejection carbon pipe after molding.
Pressure head 3 is arranged on moving up and down pressurizing device, such as rampiston bar 40.5 one end of cylindrical mandrel is fixed on
On pressure-bearing platform 14 or in 14 following platform of pressure-bearing platform.After the carbon pipe molding of half, because combining closely with lower die 2, and position
In in lower die, being difficult to take out.Plug 4 is set to move up and down ejection carbon pipe after molding by cylinder 15, what be can be convenient in this way takes
Walk carbon pipe.Again because plug 4 bears very big pressure, and cylinder 15 is unbearable when compacting carbon dust forms carbon pipe, so setting is held
It presents a theatrical performance as the last item on a programme and 14 bears pressure in pressing process.Because of the presence of buffer spring 16,15 compressive state lower piston head of cylinder is lower than stifled
First 4 lower surface；Cylinder 15 is solely subjected to spring force, and the pressure for being not subject to compacting will not be damaged.Under 15 elongation state of cylinder, plug
4 move rising.
Two kinds of structures of the complete carbon pipe formed after the half carbon pipe assembling that the utility model produces, as shown in Figure 6.This
The mold of utility model produces the carbon pipe of half, and the carbon pipe of two half symmetrically fits together, and constitutes complete carbon pipe, no
It will affect use.But mold is simple very much, does not need upper mold.And because pressure head lower diameter is bigger, it is equal to carbon pipe
Diameter maximum, pressing process carbon dust stress is evener, and product quality is higher.
It can also be using carbon pipe symmetrical in Fig. 7 in a kind of cubic boron nitride manufacture arc carbon pipe shaping mould embodiment 1
Molding die embodiment 3 in cylinder and buffer spring push plug 4 to move up, to release carbon pipe after molding.At this time
Fig. 7 in Fig. 1 the difference is that；Include upper mold in the embodiment 1 of Fig. 1, there is no upper mold and pressure head in the embodiment 3 of Fig. 7
Diameter and shape are different.
As illustrated in figures 4-5, a kind of symmetrical carbon pipe molding die embodiment 2 and embodiment 3 the difference is that；Under
Mould 2 is arranged in the bottom end cylindrical body upper surface of plug 4 and locating device for positioning pin is arranged between the cylindrical body of bottom end.Plug 4 is set
It sets on press bench 9,5 one end of cylindrical mandrel is fixed on press bench 9.Pressure head 3 connects rampiston bar
10 with moving up and down together.Using a kind of this method, half carbon pipe after molding can not be released directly, need by lower die 2 from
After being removed on plug 4, the release of carbon pipe is taken away again from lower die lower end cavity with tool.
When it is implemented, plug is placed on pressure-bearing platform, and its lower end is connected by spring with cylinder.Lower die setting is being propped up
On support, pressure head is connected with rampiston head.The raw material of the amount of setting in advance is put into lower mode cavity body, mobile pressure head enters lower die
Until scheduled position.After the completion of compacting, pressure head is removed.Carbon tube top is gone out cavity by cylinder elongation, takes out carbon pipe.
Claims (4)
1. a kind of symmetrical carbon pipe shaping mould, it is characterised in that: including lower die, plug, cylindrical mandrel and pressure head；It is set inside lower die
Cavity is set, upper end cavity is cylinder, middle-end cavity is the up big and down small centrum of outer diameter or bowl-shape cavity, lower end cavity are round
Cylindricality, rounding off at cavity diameter variation；Plug outer diameter and lower end cavity cooperate；Pressure head top is cylindrical or rectangular
Body, pressure head lower part are the cylinder cooperated with upper end cavity, and the lower surface on pressure head top is contacted with lower die upper surface；Inside cavity
Setting and the body concentric cylindrical mandrel of chamber, cylindrical mandrel one end is fixed；It is corresponding with cylindrical mandrel that through-hole is set on pressure head and plug；
The mold cavity of any one half shape of the correspondence that lower die, plug, cylindrical mandrel and pressure head surround carbon pipe symmetrical above and below.
2. a kind of symmetrical carbon pipe shaping mould according to claim 1, it is characterised in that: the plug is projection shape, packet
The nose-circle cylinder for including bottom end cylindrical body and being arranged concentrically thereon；Bottom end cylindrical body outer diameter is greater than nose-circle cylinder, top cylinder
Body and lower end cavity corresponding matching.
3. a kind of symmetrical carbon pipe shaping mould according to claim 2, it is characterised in that: the lower die is arranged in support frame
On, opening is set on support frame, and plug bottom end cylindrical member at one end is arranged below support frame, and the plug other end passes through on support frame
Opening enter lower die lower end cavity；Pressure-bearing platform is set below support frame, cylinder, cylinder are set below the cylindrical body of plug bottom end
It is connected between piston head and plug bottom end cylindrical body by buffer spring；Under cylinder compression state, plug is arranged on pressure-bearing platform,
Under cylinder elongation state, plug moves up ejection carbon pipe after molding.
4. a kind of symmetrical carbon pipe shaping mould according to claim 2, it is characterised in that: the bottom of plug is arranged in the lower die
It holds cylindrical body upper surface and locating device for positioning pin is set between the cylindrical body of bottom end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821158977.6U CN208649143U (en) | 2018-07-21 | 2018-07-21 | A kind of symmetrical carbon pipe shaping mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821158977.6U CN208649143U (en) | 2018-07-21 | 2018-07-21 | A kind of symmetrical carbon pipe shaping mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208649143U true CN208649143U (en) | 2019-03-26 |
Family
ID=65785439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821158977.6U Expired - Fee Related CN208649143U (en) | 2018-07-21 | 2018-07-21 | A kind of symmetrical carbon pipe shaping mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208649143U (en) |
-
2018
- 2018-07-21 CN CN201821158977.6U patent/CN208649143U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190326 Termination date: 20200721 |