CN104325142A - Continuous-rolling continuous-burning powder rolling device - Google Patents
Continuous-rolling continuous-burning powder rolling device Download PDFInfo
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- CN104325142A CN104325142A CN201410546580.4A CN201410546580A CN104325142A CN 104325142 A CN104325142 A CN 104325142A CN 201410546580 A CN201410546580 A CN 201410546580A CN 104325142 A CN104325142 A CN 104325142A
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Abstract
The invention relates to a continuous-rolling continuous-burning powder rolling device, which comprises a powder supply device, a roll milling device, a sintering device, a green body transmission device and a green body temporary storing device, wherein the green body transmission device is provided with a cutter and a transmission mechanism, the cutter is used for cutting rolled powder green bodies into blocks, and the transmission mechanism is used for transmitting the cut green body blocks into the green body temporary storing device; the green body temporary storing device has a temporary storing space used for storing a plurality of green body blocks before the green body blocks are sent into the sintering device. On a premise that the device realizes a basic rolling function, the green body transmission device and the green body temporary storing device are introduced so as to continuously convey and store belt materials, the stored belt materials are sent to the sintering device to be sintered to carry out on-line preliminary sintering and realize continuous rolling and continuous burning, and a purpose of bulk continuous production is realized. In addition, the green body temporary storing device can simultaneously store a plurality of green bodies, and the green bodies are sent into the sintering device in one time to carry out preliminary sintering so as to greatly improve production efficiency and bring convenience for operation.
Description
Technical field
The present invention relates to powder apparatus for continous formation, be specifically related to a kind of tandem-rolling continuous and burn powder rolling device.
Background technology
Metal-powder rolling is a kind of progressive forming technique in powder metallurgy, constantly feeds between two rolls by drawing-in device by metal dust, relies on the pressure rolling of roll to become to have certain thickness and continuous length and has the band of suitable intensity.Metal-powder rolling technique is used for producing porous functional material, can seeking balance between plate pi of strength and porosity easily, and can keep the three-dimensional communication of hole, obtains property material.
What Fig. 1 showed is powder rolling schematic diagram.Existing rolling device 20 adopts longitudinal rolling usually, and namely powder 201 is rolled into band green compact 203 through roll 202 from top to bottom, in the case, powder can be utilized to conduct oneself with dignity and coordinate roll rotation to be rolled.Same, also can carry out the cross rolling of powder, namely a pair roller keeps flat, and powder is rolled in the horizontal direction.In cross rolling situation, powder needs to be rolled by horizontal motive force.The band green compact thickness that powder rolling device obtains is little, intensity difference, just can carry out follow-up processing, therefore, need the green compact of rolling to transfer in sintering equipment to sinter after needing to sinter, so that batch sinters.But, like this rolling is separated with sintering operation, easily destroys rolling green compact in midway, be unfavorable for realizing conveying and follow-up secondary operations, be difficult to realize batch continuous prodution.
Summary of the invention
In view of this, a kind of operation facility, quantity-produced tandem-rolling continuous burning powder rolling device are provided.
A kind of tandem-rolling continuous burns powder rolling device, it comprises powder feeder unit, roll milling apparatus, sintering equipment, green compact conveyer and green compact buffer storage, become block green body to the connecting gear of green compact buffer storage after described green compact conveyer has cutter that the powder green compact after by rolling cuts into block and transmits cutting, described green compact buffer storage has the spatial cache depositing polylith green compact before feeding sintering equipment.
Above-mentioned tandem-rolling continuous burns powder rolling device under the prerequisite realizing basic rolling function, introduce green compact conveyer and buffer storage, band is stored with continus convergence, the band stored is delivered in sintering equipment and is sintered, carry out online preliminary sintering, realize tandem-rolling continuous to burn, reach the object of batch continuous prodution.And green compact buffer storage can store polylith green compact simultaneously, disposable feeding sintering equipment tentatively sinters subsequently, greatly enhances productivity and operates facility.
Accompanying drawing explanation
Fig. 1 is longitudinal powder rolling principle schematic.
Fig. 2 is the axonometric drawing of the tandem-rolling continuous burning powder rolling device of the embodiment of the present invention.
Fig. 3 is the structural representation of powder feeder unit in the tandem-rolling continuous burning powder rolling device of Fig. 2.
Fig. 4 is the structural representation of roll milling apparatus in the tandem-rolling continuous burning powder rolling device of Fig. 2.
Fig. 5 is the structural representation of green compact conveyer in the tandem-rolling continuous burning powder rolling device of Fig. 2.
Fig. 6 is the structural representation of green compact buffer storage in the tandem-rolling continuous burning powder rolling device of Fig. 2.
Fig. 7 is the structural representation of sintering equipment in the tandem-rolling continuous burning powder rolling device of Fig. 2.
Detailed description of the invention
Below with reference to specific embodiments and the drawings, the present invention is described in detail.
Refer to Fig. 2, illustrate that the tandem-rolling continuous of the embodiment of the present invention burns powder rolling device 10, this device 10 it comprise powder feeder unit 11, roll milling apparatus 12, green compact conveyer 13, green compact buffer storage 14 and sintering equipment 15, become block green body to the connecting gear of green compact buffer storage after described green compact conveyer 13 has cutter 131 that the powder green compact after by rolling cuts into block and transmits cutting, described green compact buffer storage 14 has the spatial cache depositing polylith green compact before feeding sintering equipment 15.
Powder feeder unit 11, for supplying powder, is preferably metal dust.Particularly, as shown in Figure 2, powder feeder unit 11 comprises barrel 112, is placed in the interior conveyor screw 113 for conveying powder of barrel 112 and is located at the feeding funnel 114 that conveyor screw 113 exports one end, and described feeding funnel 114 has the adjustable type mouth 114a of opening shape.Preferably, feeding funnel 114 is connecting cylinder portion 114b near the part of conveyor screw 113, by a retaining ring 118 and conveyor screw 113 compact siro spinning technology.Feeding funnel 114 is square cavity 114c in the part of immediately connecting cylinder portion 114b, and extend forward taper bucket 114d by square cavity 114c, the opening of taper bucket 114d is the adjustable type mouth 114a of aforementioned opening shape.Type mouth 114a is positioned at the roller gap mesophase spherule pair with roll milling apparatus 12, preferably square, is equivalent to the cross sectional shape of profile band.This type mouth 114a can adjust size, thus can adjust the initial width for powder powder and/or thickness.Preferably, barrel 112 adopts all-sealed structure, and powder transmits in barrel 114, and advanced by conveyor screw 113 lateral transport, continuous feed, carries out continuous rolling.
Further, powder feeder unit 11 also comprise feed hopper 115, heater 116, for driving the power set of conveyor screw 113 as motor.As shown in Figures 2 and 3, motor is installed on a motor sleeve 117, and motor is connected with conveyor screw 113 by connecting axle 117a.Feed hopper 115 is as metal dust feed(raw material)inlet.Heater 116 for preheating powder before being rolled, and the powder after heating is easier to rolling, and charging one end of barrel 112 is located at by heater 116, and namely powder first heats through heater 116 before entering barrel 112.Heater 116 can be a heating and thermal insulation cylinder, can control temperature, to powder heating and thermal insulation, realizes powder rolling at a certain temperature, thus controls mobility and the rolling performance of powder.Powder feeder unit 11 is fixed in frame 110, and frame 110 also has support 110a, for supporting heater 116.
Powder feeder unit 11 also has for powder control device 119, for controlling power set as motor (motor) rotating speed, thus regulates the unit interval for powder amount.Metal dust raw material enters roll milling apparatus 12 by feeding funnel 115 and is rolled, and the unit interval is larger for powder amount, and the powder initial density entering roll milling apparatus 12 is also larger, will affect the band green compact performance of powder rolling formation.Therefore, by the control for powder control device 119, the band green compact performance that powder rolling is formed can be adjusted.
As shown in Figure 3, roll milling apparatus 12 comprises roll 121 that two longitudinal directions are arranged side by side and for regulating the hydraulic regulating device 122 in two roll 121 gaps.Particularly, roll milling apparatus 12 is installed on a combined frame 120, and frame 120 is installed on a base plate 129.Combined frame 120 is assembled by connector by multiple framework, and for convenience detach, installation, is convenient to the replacing of each type component in whole device.Two rolls 121 are driven by power transmission 126.In a specific embodiment, power transmission 126 is by the combination of the transmission device such as motor and gear, such as, two rolls 121 can be driven respectively to rotate by two motors, be rolled powder.In another embodiment, power transmission 126 also can, by one of them roll 121 transmission of a driven by motor, drive another roll 121 to rotate by devices such as gear drives.Preferably, roll milling apparatus 12 is also equipped with frequency converter, is connected with motor, for controlling motor speed, to regulate mill speed.More preferably, frequency converter is continuous stepless adjustable type frequency conversion device, realizes the consecutive variations of mill speed, is convenient to regulate the speed, and obtains the speed parameter accurately that can obtain good strip quality.
Two roll 121 gaps realize roll gap continuously adjustabe by hydraulic regulating device 122, in one embodiment, be specially the roll 121 regulating bottom, bottom roll 121 both sides axle head is supported by hydraulic regulating device 122, by regulating the hydraulic regulating device 122 being positioned at bottom, the roll gap width of upper and lower two rolls 121 can be changed.Rolling roll gap is also an important technological parameter, can the performance such as influence of rolled thickness, density and porosity.Therefore, by controlled rolling roll gap, the performances such as the rolling thickness of band, density and porosity can be adjusted.
Roll milling apparatus 12 is provided with striker plate 124 in the axial both sides of roll 121 and is provided with waste tray 125 bottom roll 121.Avoid dust by two striker plates 124 to reveal from side, prevent from entering into bearing failure rotatable parts.Waste tray 125 is as bottom roll 121, and the dust revealed during rolling can be caught with pallet 125, and can be extracted out by pallet 125 easily and reclaimed by waste material.By this closed rolling substantially, avoid the device loss leaking and therefore bring of powder micronic dust.Also a front apron can be set in the front of roll 121 further.
Roll milling apparatus 12 is also provided with the force-measuring sensing device 123 for on-line real-time measuremen roll-force, specifically comprises dynamometry guide rod 1231, dynamometry slide block 1232 and dynamometry and regulates part 1233.Dynamometry guide rod 1231 is a pair, the roll 121 that end is caught up with by the circular hole in frame 120 in lower end is connected, the transmission of reaction force between roller when realizing rolling, dynamometry guide rod 1231 upper end supports dynamometry slide block 1232, dynamometry slide block 1232 is installed force cell 1235, bear tested load (as fixed block).Dynamometry regulates on part 1233 and is provided with adjusting nut 1237, and adjusting nut 1237 is connected with force cell 1235, utilizes adjusting nut 1237 can regulate the precompression of sensor 1235.In actual production, roll-force is one of important technical parameter, determines that roll-force can provide effective reference for the rational of technique exactly.Therefore, this rolling device 10 is provided with force-measuring sensing device 123.Specifically part 9 is regulated to realize by dynamometry guide rod 7, dynamometry slide block 8 and dynamometry.This roll milling apparatus 12 one end connects powder feeder unit, and the other end connects green compact conveying device 13, to realize the continuous rolling of band, and mass continuous seepage.
As shown in Figure 5, green compact conveyer 13 comprise for green compact after placing and transmit rolling conveyer belt 131, be positioned at conveyer belt 131 side guide rail 132, across the cutter 133 be arranged at above conveyer belt 131, described cutter 133 at least one end is fixed on described guide rail 132 slidably.Aforementioned connecting gear mainly comprises conveyer belt 131, realize band from roll milling apparatus 12 to the transmission of green compact buffer storage 14, translatory movement is controlled by conveyer belt power conveying device 136, match with mill speed, speed is adjustable, realizes steadily transmitting, power conveying device 136 adopts belt transmission agency, can be driven by motor, power conveying device 136 manipulates case 137 and is connected with one, to control transporting velocity.Guide rail 132 and conveyer belt 131 are installed on a conveyer frames 130.The one-tenth block band of designated length can be cut out by cutter 133, pre-store one block of block band is transported to green compact buffer storage 14 at next step, then enter sintering equipment and sinter.Cutter 133 has a cutting knife, is positioned at above conveyer belt 131, moves downward the band on cutting conveyer belt 131.Cutter 133 can adopt two or more, is located at side by side and transmits on route, operate simultaneously, cut out polylith band green compact simultaneously.Cutter 133 realizes the cut-out of spacing to band when transmitting, band shearing length is adjustable, and preferably, be marked with scale at transmission guide rail 132, therefore, the tolerance of shearing length can utilize the scale on guide rail 132 to demarcate.Therefore, can conveniently cut the band length needed for user.Green compact conveyer 13 also extends in charging side and is provided with a retainer plate 134, and it is inner that retainer plate 134 can extend to roll milling apparatus 12, closer to roll 121, plays better supporting role to rolled strip, green strip can be avoided to rupture.Guide rail 132 has two tracks, lays respectively at the both sides of conveyer belt 131.Green compact conveyer 13 transmit rolling after band, the cutting of continuous spacing, sends into green compact buffer storage 14 successively, realizes continuous rolling, sintering.
As shown in Figure 6, green compact buffer storage 14 has multiple layer tray 141, and each pallet 141 is for depositing one piece of rolling green compact out.The pallet 141 of every one deck is equivalent to a storage platform or spatial cache, can solve the storage problem of the band when continuous rolling like this, play buffer-stored effect, front and back device is connected through smooth and easy, and operation continuously.Green compact buffer storage 14 also has the adjustment support 142 of a highly automated adjustment, and this adjustment support 142 has hydraulic means 143, for progressively rising or decline pallet 141 receive to make multiple pallet 141 green compact sent successively.Support 142 is regulated to be located on a base 144, support 142 is regulated to have the two pairs of support bars 145 being positioned at base 144 both sides, often pair of support bar 145 is by hinge interconnection, the bottom of one of them support bar is connected with hydraulic means 143, when top braces plays pallet 141. concrete operations, band is sent in pallet 141 by green compact conveyer 13, pallet 141 is after receiving band, the hydraulic means 143 of bottom stretches, support bar 145 is made to reduce certain distance, then last layer pallet 141 is utilized to continue to receive the band sent, continue to decline, circulation like this, after green compact buffer storage 14 each layers of pallet 141 all store up filled band material, send into sintering equipment 15 more together to sinter.
As shown in Figure 7, sintering equipment 15 has shell 151, as same casing structure.Sintering equipment 15 is built with multiple supporting plate 152, each supporting plate 152 is for placing a block green body, the quantity of described supporting plate 152 is suitable with described pallet 141, described multiple pallet 141 is corresponding with multiple supporting plate 152 position when sending into sintering equipment 15, be more preferably highly roughly consistent, so that put into by the polylith green compact of each for green compact buffer storage 14 pallet 141 buffer memory in sintering equipment 15 sintering processes simultaneously simultaneously.Preferably, sintering equipment 15 and green compact conveyer 13 adopt slitless connection form, such as, pallet 141 and supporting plate 152 slitless connection or interval relative.Be provided with heat power supply device 153 in sintering equipment 15, sintering heat power supply device 153 is preferably any one nonstorage calorifier, to realize quick of short duration sintering or the insulation of green compact.Sintering equipment 15 is also provided with multiple roller bearing 154 at input and output material two ends, is provided with mesh conveyor belt 155, so just facilitates input and output material between two roller bearings 154.Sintering equipment 15 has craft port, for multiple pallets 141 of green compact buffer storage 14 being butted up against multiple supporting plates 152 of green compact conveyer 13 in the face of green compact conveyer 13 one end.Sintering equipment 15, for green sintering, makes rolled strip possess preliminary intensity, facilitates follow-up to carry and secondary forming.
In addition, the conveyer frames 130 of the frame 110 of powder feeder unit 11, the frame 120 of roll milling apparatus 12 and base plate 129, green compact conveyer 13, the adjustment support 142 of green compact buffer storage 14 all mutual near, be arranged in order according to material direction, be preferably and be mutually removably mounted on one, green compact buffer storage 14 docks with sintering equipment 15 and is connected, therefore, whole tandem-rolling continuous burns powder rolling device 10 as a wholeization version, save production site, enhance productivity and ease-to-operate, convenient production control progress together.
When above-mentioned tandem-rolling continuous burning powder rolling device 10 works, metal dust raw material is inputted continually by feed hopper 115, the transmission speed of drive screw 113 is controlled for powder control device 119, control for powder amount, after heater 116 heats, discharge bucket 114 is delivered to by drive screw 113, powder enters between a pair roller 121 through its type mouth 114a, roll gap between roll 121 is regulated by hydraulic regulating device 122, powder enters into conveyer belt 131 along retainer plate 134 after a pair roller 121 rolling, block is divided into by cutting knife, deliver in green compact buffer storage 14 again, green compact buffer storage 14 receives the green compact of cutting one by one by pallet 141, after installing to the green compact of predetermined quantity, namely the supporting plate 152 directly delivering to sintering equipment 15 sinters, i.e. discharging after sintering, form the thick finished product of band.
Thus, under above-mentioned tandem-rolling continuous burning powder rolling device 10 realizes the prerequisite of basic rolling function, introduce green compact conveyer 13 and green compact buffer storage 14, band is stored with continus convergence, the band stored is delivered in sintering equipment 15 again and is sintered, carry out online preliminary sintering, realize tandem-rolling continuous and burn, reach the object of batch continuous prodution.And green compact buffer storage 14 can store polylith green compact simultaneously, disposable feeding sintering equipment tentatively sinters subsequently, greatly enhances productivity and operates facility.Further, this device 10 also can on-line monitoring roll-force data by force-measuring sensing device 123, also can access control system, realize automation mechanized operation and produce.Such as, powder feeder unit 11 has for powder control device 119, the band green compact performance that adjustment powder rolling is formed.Roll milling apparatus 12 has hydraulic regulating device 122, realizes two roll 121 Connexins adjustable, to adjust the performances such as rolling thickness, density and porosity.Therefore, by controlled rolling roll gap, the performances such as the rolling thickness of band, density and porosity can be adjusted.Roll milling apparatus 12 is equipped with frequency converter, is connected with motor, for controlling motor speed, realizes the consecutive variations of mill speed, obtains the speed parameter accurately that can obtain good strip quality.Green compact conveyer 13 has manipulation case 137, to control transporting velocity.Therefore, this device 10 can facilitate regulating parameter, the multiple parameters of precise rolling control band and performance, and the band green compact of continuous rolling all size also realize preliminary sintering, conveniently carry and following process.Be appreciated that the above device 10 form had both been applicable to the continuous seepage of metal dust, be also applicable to the continuous seepage of other similar non-metal powders.
It should be noted that; the present invention is not limited to above-mentioned embodiment, and according to creative spirit of the present invention, those skilled in the art can also make other changes; these changes done according to creative spirit of the present invention, all should be included within the present invention's scope required for protection.
Claims (10)
1. a tandem-rolling continuous burns powder rolling device, it comprises powder feeder unit, roll milling apparatus and sintering equipment, it is characterized in that, also comprise green compact conveyer and green compact buffer storage, become block green body to the connecting gear of green compact buffer storage after described green compact conveyer has cutter that the powder green compact after by rolling cuts into block and transmits cutting, described green compact buffer storage has the spatial cache depositing polylith green compact before feeding sintering equipment.
2. tandem-rolling continuous as claimed in claim 1 burns powder rolling device, and it is characterized in that, described green compact buffer storage has multiple layer tray, and each pallet is used for depositing a block green body.
3. tandem-rolling continuous as claimed in claim 2 burns powder rolling device, it is characterized in that, described sintering equipment has multiple supporting plate, each supporting plate is for placing a block green body, the quantity of described supporting plate is suitable with described pallet, described sintering equipment and green compact buffer storage slitless connection, described multiple pallet is corresponding with multiple blade position when sending into sintering equipment.
4. tandem-rolling continuous as claimed in claim 1 burns powder rolling device, it is characterized in that, described green compact buffer storage also has the adjustment support of a highly automated adjustment, described adjustment support has hydraulic means, for progressively rising or decline pallet receive to make multiple pallet the green compact sent successively.
5. tandem-rolling continuous as claimed in claim 1 burns powder rolling device, it is characterized in that, described green compact conveyer comprise for green compact after placing and transmit rolling conveyer belt, be positioned at conveyer belt side guide rail, across the cutter be arranged at above conveyer belt, described cutter at least one end is fixed on described guide rail slidably.
6. tandem-rolling continuous as claimed in claim 1 burns powder rolling device, it is characterized in that, described roll milling apparatus comprises roll that two longitudinal directions are arranged side by side and for regulating the hydraulic regulating device of two roll seams.
7. tandem-rolling continuous as claimed in claim 1 burns powder rolling device, and it is characterized in that, described roll milling apparatus is provided with the force-measuring sensing device for on-line real-time measuremen roll-force.
8. tandem-rolling continuous as claimed in claim 6 burns powder rolling device, and it is characterized in that, described roll milling apparatus is provided with striker plate in the axial both sides of roll and is provided with waste tray bottom roll.
9. tandem-rolling continuous as claimed in claim 1 burns powder rolling device, it is characterized in that, described powder feeder unit comprises barrel, be placed in barrel in for the conveyor screw of conveying powder, to the heater of powder heating and be located at the feeding funnel that conveyor screw exports one end, described feeding funnel has the adjustable type mouth of opening shape.
10. tandem-rolling continuous as claimed in claim 1 burns powder rolling device, it is characterized in that, described powder feeder unit also comprises power set, controls the confession powder control device of power set rotating speed, described roll milling apparatus has provides the power transmission of power and the frequency converter of control power transmission speed change to rolling, and described green compact conveyer has the manipulation case controlling green compact transporting velocity.
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| CN201410546580.4A CN104325142B (en) | 2014-10-16 | 2014-10-16 | Tandem-rolling continuous burns powder rolling device |
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| CN201410546580.4A CN104325142B (en) | 2014-10-16 | 2014-10-16 | Tandem-rolling continuous burns powder rolling device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105313432A (en) * | 2015-12-10 | 2016-02-10 | 张侃 | Double metal plate powder rolling equipment |
| CN107321987A (en) * | 2017-07-21 | 2017-11-07 | 四川大学 | Multiple physical field couples superfast sintering integrated equipment |
| CN110722164A (en) * | 2019-11-29 | 2020-01-24 | 西北有色金属研究院 | Preparation method for improving uniformity of large-size powder rolled metal porous plate |
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| CN104325142B (en) | 2016-09-21 |
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