CN109551614A - A kind of ultrasonic unit for powder pressing forming - Google Patents
A kind of ultrasonic unit for powder pressing forming Download PDFInfo
- Publication number
- CN109551614A CN109551614A CN201811182200.8A CN201811182200A CN109551614A CN 109551614 A CN109551614 A CN 109551614A CN 201811182200 A CN201811182200 A CN 201811182200A CN 109551614 A CN109551614 A CN 109551614A
- Authority
- CN
- China
- Prior art keywords
- cavity plate
- ultrasonic
- die holder
- vibration generator
- pressing forming
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/022—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form combined with vibrating or jolting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/04—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with one ram per mould
Abstract
The present invention relates to a kind of ultrasonic units for powder pressing forming, including die holder, the cavity plate on the die holder, and the punch-pin of the relatively described cavity plate setting, and the punch-pin and the cavity plate cooperate, and the chamber as powder compacting is collectively formed；It is characterized by: being provided at least one ultrasonic vibration generator in the die holder, the vibration output section of the ultrasonic vibration generator is arranged towards the cavity plate, at least one ram is wherein provided between the cavity plate and the vibration output section of the ultrasonic vibration generator, and the ultrasonic vibration generator can drive the ram to hit to the cavity plate.The present invention drives ram to hit cavity plate with ultrasonic vibration generator, so that the ultrasonic unit is produced big to the vibrational energy of dusty material when working, and frequency is high, so that it is high via the product compactness obtained after the ultrasonic unit compression moulding, and there is good mechanical property.
Description
Technical field
The invention belongs to powder to suppress relevant technical field, more particularly to a kind of ultrasound for powder pressing forming
Wave apparatus.
Background technique
Powder pressing forming is for being made loose powder with prespecified geometric, size, density and intensity
Semifinished or finished goods.
Wherein, ceramic powders forming technique is mixed with forming agent using Zirconium oxide powder, Zirconium powder as raw material, warp
It crosses dry-pressing formed, sintering process to be fabricated, such technique mainly produces the flat pattern ceramic system of light-type, high rigidity
Product, high production efficiency are suitble to mass production, and at low cost, stock utilization is high, and shear resistant is good.
Currently, ceramic compression moulding, particular by under the static pressure of press machine and mold, powder is pressed in 15-600MPa
Under power, it is pressed into required shape, since zirconia material material is firmly crisp, there is irregular corner angle, static pressure effects on microcosmic
After lower compression moulding, there can be many gaps between particle, will form stomata, cause the compactness of material after forming low, it can shadow
Ring mechanical property such as hardness, intensity, wearability, high temperature resistant, the corrosion resistance for arriving ceramic panel.
Specifically, the powder pressing forming device as disclosed in Chinese patent (application number: 2017107076452), has
Body disclose using disengaging gas air-flow generate vibration drive film layer shake, mixed with powder, at the same by powder gap into
Row filling.
However, above-mentioned powder pressing forming device is at work, and since the energy generated using film vibration is low, frequency
Small, spread scope is limited, can only cause the light exercise close to film surface material, be insufficient to allow entire construction material closely knit, from
And influence whether the mechanical property of product after compression moulding；Moreover, this effect is just without solution is not pressed after the pressurizing
Powder arranges mixed and disorderly problem during system.
Summary of the invention
Based on this, it is necessary to for the technical problems in the prior art, provide a kind of for powder pressing forming
Ultrasonic unit.
Specifically, a kind of ultrasonic unit for powder pressing forming, including die holder, it is recessed on the die holder
Mould, and the punch-pin of the relatively described cavity plate setting, the punch-pin and the cavity plate cooperate, and have been collectively formed and have suppressed as powder
Chamber；It is characterized by: at least one ultrasonic vibration generator is provided in the die holder, the ultrasonic vibration generator
Vibration output section is arranged towards the cavity plate, wherein setting between the cavity plate and the vibration output section of the ultrasonic vibration generator
It is equipped at least one ram, and the ultrasonic vibration generator can drive the ram to hit to the cavity plate
It hits.
As a preferred solution of the present invention, the ultrasonic vibration generator includes ultrasonic transducer, and is set to described super
Amplitude transformer on acoustic wave transducer；One end of the amplitude transformer is fixedly connected with the ultrasonic transducer, and other end is to institute
State cavity plate setting, and the ram is placed on the amplitude transformer towards on a side end face of the cavity plate, and with the cavity plate
It contacts.
As a preferred solution of the present invention, the ultrasonic vibration generator further includes guide sleeve, and the guide sleeve is socketed in
In the amplitude transformer, and slided relative to the amplitude transformer.
As a preferred solution of the present invention, the ultrasonic vibration generator further includes elastic supporting member for supporting optical member, for described super
Acoustic wave transducer is supported, and the elastic supporting member for supporting optical member can carry out flexible adjustment to the support of the ultrasonic transducer.
As a preferred solution of the present invention, the elastic supporting member for supporting optical member is spring, and the both ends of the spring surpass with described respectively
Acoustic wave transducer and the die holder only support.
As a preferred solution of the present invention, the ram is steel ball, is provided between the amplitude transformer and the cavity plate
More steel balls.
As a preferred solution of the present invention, the amplitude transformer is fixed with sheath, and more in one end towards the cavity plate
The steel ball setting contacts on the sheath, and with the cavity plate.
As a preferred solution of the present invention, the ultrasonic unit further comprises cooling system, for the ultrasound
Vibration machine cools down.
As a preferred solution of the present invention, the cooling system includes gas-tpe fitting, and the gas-tpe fitting is arranged described
On the die holder cover board of die holder, for importing cold air in the die holder, and the cold air can occur by way of the ultrasonic vibration
Device, and the fit-up gap between the cavity plate and the die holder discharges.
As a preferred solution of the present invention, multiple ultrasonic vibration generators are provided in the die holder.
Due to the application of the above technical scheme, compared with the prior art, the invention has the following advantages:
Ultrasonic unit provided by the present invention for powder pressing forming is used during powder pressing forming
Ultrasonic vibration generator driving ram hits cavity plate, so that the ultrasonic unit is produced to dusty material when working
Vibrational energy it is big, and frequency is high so that high via the product compactness obtained after the ultrasonic unit compression moulding, and
With good mechanical property.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the ultrasonic unit provided by the present invention for powder pressing forming.
Fig. 2 is the structural schematic diagram of cavity plate in the present invention.
Wherein, 10, die holder；11, intermediate die；12, pilot hole；13, die holder cover board；14, pillar；20, cavity plate；21, water conservancy diversion
Slot；30, punch-pin；40, ultrasonic vibration generator；41, ultrasonic transducer；42, amplitude transformer；43, elastic supporting member for supporting optical member；44, stud；
45, guide sleeve；50, ram；61, gas-tpe fitting；230, chamber；421, sheath.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " it include one or more phases
Any and all combinations of the listed item of pass.
The claimed ultrasonic unit for powder pressing forming of the present invention, for the process in powder pressing forming
Middle addition ultrasonic vibration is vibrated low frequency impact and high frequency ultrasound and is transmitted in each powder, so that powder filling wedge angle generates
Gap in, adaptive aligned position entanglement, so as to improve the ultrasonic unit to product after dusty material compression moulding
Compactness.
Referring to Fig. 1, the ultrasonic unit provided by the present invention for powder pressing forming, including die holder 10, it is set to
Cavity plate 20 on the die holder 10, the punch-pin 30 that the relatively described cavity plate 20 is arranged, and for occurring in the die holder 10
The ultrasonic vibration generator 40 of ultrasonic vibration.Wherein, the cavity plate 20 cooperates with the punch-pin 30, and has been collectively formed as powder
The chamber 230 of end compacting.The vibration output section of the ultrasonic vibration generator 40 is arranged towards the cavity plate 20, and the two it
Between at least one ram 50 is set, enable ultrasonic vibration generator 40 drive the ram 50 to the cavity plate 20 into
Row is hit.
The die holder 10 is the supporting structure of the ultrasonic unit, for being supported to cavity plate 20 placed on it,
So that punch-pin 30 is driven pushing by press machine and is cooperated with the cavity plate 20.
In the present embodiment, the die holder 10 includes intermediate die 11, and the intermediate die 11 is arranged in the die holder 10 and institute
It states between cavity plate 20, and is fixedly connected respectively with the die holder 10 and the groove 20, specifically available straight pin 101 and screw
102 are respectively fixedly connected intermediate die 11 and die holder 10 and intermediate die 11 and cavity plate 20, guarantee die holder 10 in this
Between assembly precision between mould 11 and intermediate die 11 and cavity plate 20.Wherein, distinguish in the die holder 10 and the intermediate die 11
Pilot hole 12 is offered, for assembling to the ultrasonic vibration generator 40.
It is appreciated that the die holder 10 of the present embodiment and the split type structure setting of intermediate die 11, have been convenient for die holder 10 in life
Opening up to the pilot hole 12 for assembling ultrasonic vibration generator 40 when producing preparation, that is to say, that be convenient for the die holder 10
Production preparation.
The ultrasonic vibration generator 40 drives the ram 50 for generating ultrasonic vibration in a manner of ultrasonic vibration
The cavity plate 20 is hit.In the present embodiment, multiple ultrasonic vibration generators 40 are provided in the die holder 10, specifically
The number of ultrasonic vibration generator 40 can be set according to the demand of pressed powder required for chamber 230 between cavity plate 20 and punch-pin 30
Amount.
Specifically, the ultrasonic vibration generator 40 includes ultrasonic transducer 41, is set to the ultrasonic transducer 41
On amplitude transformer 42 and elastic supporting member for supporting optical member 43；One end of the amplitude transformer 42 is fixedly connected with the ultrasonic transducer 41,
Specifically available stud 44 is fixedly connected；The other end of the amplitude transformer 42 is arranged to the groove 20, and the shock
Part 50 is placed on a side end face of the amplitude transformer 42 towards the cavity plate 20, and is contacted with the cavity plate 20.Also
It is to say, the side end face towards the cavity plate 20 in the amplitude transformer 42 of the present embodiment is on the ultrasonic vibration generator 40
Vibrate output section.And the ultrasonic vibration generator 40 is at work, the energy converter 41 can generate ultrasound after powering on
High-frequency vibration, produced high-frequency vibration amplifies when amplitude transformer 42 again works energy converter 41, and ultrasonic energy is concentrated on
The ram 50 being placed in the amplitude transformer 42 carries out the driving of high-frequency vibration.
The elastic supporting member for supporting optical member 43 is for being supported the ultrasonic transducer 41, and 43 energy of the elastic supporting member for supporting optical member
Enough supports to the ultrasonic transducer 41 carry out flexible adjustment, enable the elastic supporting member for supporting optical member 43 to the ultrasonic wave
Generated vibration offer reaction force when working of energy converter 41, in order to which ultrasonic transducer 41 passes through 42 pairs of amplitude transformer shocks
The driving of the progress high-frequency vibration of part 50.
Specifically, the elastic supporting member for supporting optical member 43 be spring, the both ends of the spring respectively with the ultrasonic transducer 41
It is only supported with the die holder 10.Wherein the spring is preferably compressed spring.Further, the both ends of the spring are socketed in respectively
The ultrasonic transducer 41, to limit to the spring, is prevented on the pillar 14 of the 10 upper die holder cover board 13 of die holder
It is deviated when only spring provides the reaction force that ultrasonic transducer 41 vibrates.
In the present embodiment, the ultrasonic vibration generator 40 further includes guide sleeve 45, and the guide sleeve 45 is socketed in institute
It states in amplitude transformer 42, and is slidably connected relative to the amplitude transformer 42.To play limit to amplitude transformer 42 with the guide sleeve 45
With the effect of guiding.Wherein the guide sleeve 45 is arranged in the pilot hole 12 of the die holder 10, and between the pilot hole 12
Gap cooperation, is up and down reciprocatingly slided so that guide sleeve 45 is able to carry out in the die holder 10.
The ram 50 by the amplitude transformer 42 driving for hitting cavity plate 20, with to being placed in the cavity plate 20 and institute
It states the powder between punch-pin 30 in chamber 230 and carries out vibratory drive.
In the present embodiment, the ram 50 is steel ball, and is set between each amplitude transformer 42 and the cavity plate 20
It is equipped with more steel balls, it is preferable that be provided with two steel balls between each amplitude transformer 42 and the cavity plate 20.
It is appreciated that the present embodiment is the structure setting of ram 50 by steel ball, solves ultrasonic vibration heavy high
The conducting problem of energy in laminated structure part, so that the high-frequency vibration of amplitude transformer 42, when being conducted to cavity plate 20 through steel ball, becomes steel
Ball is transmitted to cavity plate 20 and is placed in cavity plate 20 and punch-pin 30 to the low frequency impact of cavity plate 20 and the compound motion of high-frequency vibration
Between powder in chamber 230 vibration be also low frequency impact and high-frequency vibration compound motion so that vibration distribution is more equal
It is even, and function and effect are more preferable.
Further, the amplitude transformer 42 is fixed with sheath 421, and the more steel in one end towards the cavity plate 20
Ball setting contacts on the sheath 421, and with the cavity plate 20.So that amplitude transformer 42 carries out high-frequency vibration drive to steel ball
It when dynamic, directly contacted especially by sheath 421 with steel ball, protection is played the role of to amplitude transformer 42 with this, had and prolong
The effect of long 42 service life of amplitude transformer.
As a preferred solution of the present invention, ultrasonic unit of the invention further includes cooling system, for the ultrasound
Vibration machine 40 cools down, and is particularly used for carrying out the ultrasonic transducer 41 on ultrasonic vibration generator 40 cold
But cool down.
Specifically, the cooling system includes gas-tpe fitting 61, and the mould of the die holder 10 is arranged in the gas-tpe fitting 61
On flap plate 13, for toward importing cold air in the die holder 10, and the cold air can by way of the ultrasonic vibration generator 40,
And discharged from the fit-up gap between the cavity plate 20 and the die holder 10, it is realized with this to ultrasonic vibration generator 40
It cools.That is, when the ultrasonic vibration generator 40 is assemblied in the pilot hole 12 of the die holder 10, with the mould
There are certain intervals between the pilot hole 12 of seat 10, for use as the flow channel of cold air.Referring to Fig. 2, the cavity plate 20 is in face
Multiple diversion trenches 21 are offered, on a side end face of the die holder 10 for use as the channel of cold air outflow.
To sum up, the ultrasonic unit provided by the present invention for powder pressing forming, in the process of powder pressing forming
In, cavity plate is hit with ultrasonic vibration generator driving ram, so that the ultrasonic unit is produced to powder when working
The vibrational energy of powder material is big, and frequency is high, so that closely knit via the product obtained after the ultrasonic unit compression moulding
Degree is high, and has good mechanical property.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of ultrasonic unit for powder pressing forming, including die holder, the cavity plate on the die holder, and it is opposite
The punch-pin of the cavity plate setting, the punch-pin and the cavity plate cooperate, and the chamber as powder compacting is collectively formed；It is special
Sign is: at least one ultrasonic vibration generator, the vibration output section of the ultrasonic vibration generator are provided in the die holder
It is arranged towards the cavity plate, wherein being provided at least one between the cavity plate and the vibration output section of the ultrasonic vibration generator
A ram, and the ultrasonic vibration generator can drive the ram to hit to the cavity plate.
2. the ultrasonic unit according to claim 1 for powder pressing forming, it is characterised in that: the ultrasonic vibration
Generator includes ultrasonic transducer, and the amplitude transformer on the ultrasonic transducer；One end of the amplitude transformer and institute
It states ultrasonic transducer to be fixedly connected, other end is arranged to the cavity plate, and the ram is placed on the luffing pole face
It is contacted on a side end face of the cavity plate, and with the cavity plate.
3. the ultrasonic unit according to claim 2 for powder pressing forming, it is characterised in that: the ultrasonic vibration
Generator further includes guide sleeve, and the guide sleeve is socketed in the amplitude transformer, and can be slided relative to the amplitude transformer.
4. the ultrasonic unit according to claim 2 for powder pressing forming, it is characterised in that: the ultrasonic vibration
Generator further includes elastic supporting member for supporting optical member, and for being supported to the ultrasonic transducer, and the elastic supporting member for supporting optical member can be right
The support of the ultrasonic transducer carries out flexible adjustment.
5. the ultrasonic unit according to claim 4 for powder pressing forming, it is characterised in that: the resilient support
Part is spring, and the both ends of the spring are only supported with the ultrasonic transducer and the die holder respectively.
6. the ultrasonic unit according to claim 2 for powder pressing forming, it is characterised in that: the ram is
Steel ball is provided with more steel balls between the amplitude transformer and the cavity plate.
7. the ultrasonic unit according to claim 6 for powder pressing forming, it is characterised in that: the amplitude transformer exists
One end towards the cavity plate is fixed with sheath, and the more steel ball settings abut on the sheath, and with the cavity plate
Cooperation.
8. the ultrasonic unit according to claim 1 for powder pressing forming, it is characterised in that: the ultrasonic wave dress
Setting further comprises cooling system, for cooling down to the ultrasonic vibration generator.
9. the ultrasonic unit according to claim 8 for powder pressing forming, it is characterised in that: the cooling system
Including gas-tpe fitting, the gas-tpe fitting is arranged on the die holder cover board of the die holder, for importing cold air in the die holder,
And the cold air can be by way of the ultrasonic vibration generator, and the fit-up gap between the cavity plate and the die holder is outside
Discharge.
10. the ultrasonic unit according to claim 1 for powder pressing forming, it is characterised in that: in the die holder
It is provided with multiple ultrasonic vibration generators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811182200.8A CN109551614B (en) | 2018-10-11 | 2018-10-11 | Ultrasonic device for powder compression molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811182200.8A CN109551614B (en) | 2018-10-11 | 2018-10-11 | Ultrasonic device for powder compression molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109551614A true CN109551614A (en) | 2019-04-02 |
| CN109551614B CN109551614B (en) | 2021-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811182200.8A Active CN109551614B (en) | 2018-10-11 | 2018-10-11 | Ultrasonic device for powder compression molding |
Country Status (1)
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| CN (1) | CN109551614B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110341231A (en) * | 2019-06-20 | 2019-10-18 | 南京理工大学 | A kind of axial ultrasonic auxiliary pressure setting and drawing method |
| CN111483034A (en) * | 2020-05-25 | 2020-08-04 | 南通华兴磁性材料有限公司 | Forming method of flat ultra-thin manganese-zinc ferrite magnetic core |
| CN114619029A (en) * | 2022-01-31 | 2022-06-14 | 江苏海曼特电气有限公司 | Compacting die for powder metallurgy production |
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| CN110341231A (en) * | 2019-06-20 | 2019-10-18 | 南京理工大学 | A kind of axial ultrasonic auxiliary pressure setting and drawing method |
| CN111483034A (en) * | 2020-05-25 | 2020-08-04 | 南通华兴磁性材料有限公司 | Forming method of flat ultra-thin manganese-zinc ferrite magnetic core |
| CN114619029A (en) * | 2022-01-31 | 2022-06-14 | 江苏海曼特电气有限公司 | Compacting die for powder metallurgy production |
| CN114619029B (en) * | 2022-01-31 | 2022-11-29 | 江苏海曼特电气有限公司 | Compacting die for powder metallurgy production |
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| CN109551614B (en) | 2021-04-20 |
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