CN1649722A - Powder compacting method and powder compacting system - Google Patents
Powder compacting method and powder compacting system Download PDFInfo
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- CN1649722A CN1649722A CNA028293096A CN02829309A CN1649722A CN 1649722 A CN1649722 A CN 1649722A CN A028293096 A CNA028293096 A CN A028293096A CN 02829309 A CN02829309 A CN 02829309A CN 1649722 A CN1649722 A CN 1649722A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/005—Control arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/30—Feeding material to presses
- B30B15/302—Feeding material in particulate or plastic state to moulding presses
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- Powder Metallurgy (AREA)
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Abstract
This invention has been realized in order to obtain green compacts of a fixed height by pressure molding of material powder with a fixed gap between upper and lower punches. A powder compacting method of this invention performs a punch driving step wherein, after filling material powder in a cavity, the material powder filled in the cavity is pressure molded by using an upper punch and a lower punch, said punch driving step comprising a primary driving step of driving either one of the punches until the thickness of the cavity formed between the upper and lower punches becomes slightly greater than a target molding thickness, and a secondary driving step of measuring a gap between the upper and lower punches and driving either one of the punches while controlling it until the measured value reaches the target molding thickness.
Description
Technical field
The present invention relates to material powder is carried out the powder forming method and the powder forming device of press molding.
Background technology
In the past, be used between upper punch and low punch to being filled in that material powder in the die cavity carries out press molding and the building mortion that forms the press-powder body the so-called punching machine that has mechanisms such as utilizing crank that upper punch is driven.
The example of this punching machine (powder forming device) 110 is shown in Fig. 8.This punching machine 110 is to be used to be shaped the device of cylinder press-powder body, its structure is: the upper punch cylindraceous 114 that columned plug 113 that the punch die 112 that the outer peripheral face of shaping press-powder body is used, shaping inner peripheral surface are used and shaping upper surface are used can remain on the framework 111 up or down, and this framework 111 is fixed with the low punch cylindraceous 115 that the lower surface of shaping press-powder body is used.
In addition, Fig. 8 shows and uses so-called pressing mold to move up and down the punching machine 110 of pressing shape method (withdrawalmethod), this pressing mold moves up and down presses the shape method to be: if the distance that upper punch 114 descends regulation is pressurizeed to material powder, then punch die 112 and plug 113 begin to descend with upper punch 114 integratedly, if finished the press molding of material powder, then upper punch 114 rises, and punch die 112 and plug 113 further descend and extract the press-powder body.
Moving up and down by crank mechanism shown in Figure 9 116 of upper punch 114 undertaken.Utilize this crank mechanism 116 to be set at: when upper punch 114 dropped to bottom dead centre, the interval of last low punch 114,115 became the thickness of the press-powder body that will obtain.That is, because the mobile phase of upper punch 114 drops to assigned position for the low punch 115 that is fixed in the mode that mechanically is restricted, so the speciality of this punching machine 110 is to obtain certain thickness press-powder body easily.
But, because the deviation of the loading of the stretching, extension of the framework 111 of each parts of maintenance, deflection, material powder etc., although upper punch 114 has dropped to bottom dead centre sometimes, but, the interval of last low punch does not form setting, as a result, can not obtain having the press-powder body of specific thickness, thereby the thickness of press-powder body produces deviation.
The present invention makes in view of the above problems, and purpose is to make being spaced apart of low punch to carry out press molding definitely, obtains having certain thickness press-powder body.
Summary of the invention
For solving above-mentioned problem, powder forming method of the present invention, be behind the filling work procedure that material powder is filled in the die cavity, carry out the powder forming method that drift drives operation, wherein, to drive operation be to be filled into material powder in this die cavity carries out press molding between upper punch and low punch operation to drift; Be characterised in that, drift driving operation has: the thickness of driving either party's drift formed die cavity up between last low punch becomes the once driving operation of the state bigger slightly than shaping target thickness and measures the interval and the limit of going up low punch and control limit driving either party drift becomes above-mentioned shaping target thickness up to described measured value secondary driving operation.
Perhaps, be characterised in that, the drift that material powder in the die cavity is formed drives operation to have: drive either party's drift and make the approaching once driving operation of low punch and when once driving interval that operation makes low punch greater than the shaping target thickness, the limit controls the limit and drives the last either party at least of low punch becomes the shaping target thickness up to the interval of last low punch secondary driving operation.
In this powder forming method, can once drive in the operation fixing in the low punch either party's drift and drive the opposing party's drift, and drive at secondary and to drive once driving side's drift fixing in the operation fixedly the opposing party's drift in the operation.Perhaps, can in two-step, drive side's drift and fixing the opposing party's drift.
According to this method, since the limit measuring go up low punch between edge material powder is carried out press molding up to becoming the shaping target thickness, even stretch or deflection so framework produces, also become predetermined distance between the last low punch, can obtain to have certain thickness press-powder body.
And, be set at when being a bit larger tham the shaping target thickness once driving the interval that will go up low punch in the operation, secondary drive in the operation must on the interval of low punch adjust.As a result, the press-powder body that can be shaped reliably and provide desirable thickness.
And, when once driving the interval that to go up low punch in the operation and set die cavity for and be the shaping target thickness, even the interval of last low punch is once driving in the operation because of the deflection of device etc. does not become desirable value, also can secondary drive in the operation on the interval of low punch carry out small adjustment.As a result, can make the thickness of press-powder body reliably is below the setting.
And, preferably, in filling work procedure, make and constitute: on making the upper surface that is disposed at punch die slidably and the open piston shoes box of lower surface advance to after the operation of advancing on the die cavity, make the piston shoes box keep out of the way operation from what die cavity was kept out of the way, and in keeping out of the way the process of operation, low punch is risen relatively with respect to punch die, and the part that will be filled into the material powder in the die cavity boosts on the punch die, the piston shoes box that utilization is kept out of the way scrapes off a part that boosts the material powder on the punch die, keeping out of the way operation when finishing, low punch is turned back on the position of keeping out of the way before the operation with respect to the relative position of punch die.
Promptly, because being filled into the density of the material powder in the die cavity is different before and after the advance and retreat direction of piston shoes box, so, by driving low punch in linkage up and down and change the degree of depth of die cavity with filling work procedure, it is different that thereby the volume that makes the material powder in the die cavity produces before and after the advance and retreat direction of piston shoes box, can make the amount that is filled into the material powder in the die cavity even.Therefore, owing to the loading of material powder in whole die cavity becomes evenly, so, can stably make the whole uniform press-powder body of density, thickness by being spaced apart definitely of low punch pushed.
In addition, powder forming device of the present invention is characterised in that, be to be filled into the interior material powder of die cavity carries out press molding between upper punch and low punch powder forming device, comprise: the either party of a low punch drive unit up and down in the driving, the secondary drive unit that the either party's of last low punch upper-lower position is finely tuned, be used for obtaining the measuring mechanism at the interval of low punch, feed back the measurement result of this measuring mechanism and control the secondary drive unit becomes desired value up to measurement result control part.
According to the present invention since can measure the interval of low punch and with the material powder press molding to becoming the shaping target thickness, so, even framework generation stretching, extension or deflection also become predetermined distance between last low punch, can obtain certain thickness press-powder body.
In this powder forming device, can adopt a side in the low punch to drive by drive unit and the opposing party by constituting that the secondary drive unit drives.Perhaps also can adopt either party's drift only by constituting that drive unit and secondary drive unit drive.
At this moment, if employing drives constituting of upper punch by the secondary drive unit, then because easy formation low punch is fixed, the device of punch die structure moving up and down, so, can easily form and carry out the powder forming device that pressing mold moves up and down pressure shape method.
In addition, drive constituting of low punch if adopt, then owing to carrying out following operation, promptly with the secondary drive unit by the secondary drive unit, drive low punch when utilizing the piston shoes box to fill and make the uniform operation of powder loading in the die cavity, so simplification that can implement device.
Description of drawings
Fig. 1 is the cutaway view of major part of the powder forming device of an expression form of implementation of the present invention, is the figure of explanation filling work procedure;
Fig. 2 be in the expression powder forming device shown in Figure 1, low punch is at the figure that keeps out of the way the rising operation in the operation of piston shoes box;
Fig. 3 be in the expression powder building mortion shown in Figure 1, low punch descends and finished the figure of the state that material powder fills;
Fig. 4 A is the figure that is used to illustrate the powder forming method of a form of implementation of the present invention, is that expression makes upper punch drop to the cutaway view of the Mechanical Driven operation of bottom dead centre;
Fig. 4 B is the figure that is used to illustrate the powder forming method of a form of implementation of the present invention, is that expression rises low punch to become the cutaway view of the adjustment operation of shaping target thickness up to the thickness of die cavity;
Fig. 4 C is the figure that is used to illustrate the powder forming method of a form of implementation of the present invention, is the cutaway view of the operation of the expression press-powder body of extracting formed thereby from punch die;
Fig. 5 is the action line chart of the action of last low punch in expression powder forming each operation and piston shoes box;
Fig. 6 is the cutaway view of major part of the powder forming device of expression other forms of implementation of the present invention;
Fig. 7 is the flow chart figure that the powder forming method of the present invention of powder forming device shown in Figure 6 has been adopted in expression;
Fig. 8 is the schematic diagram of the summary of the powder forming device before the expression;
Fig. 9 is the schematic diagram of an example of the upper punch driving mechanism in the expression powder forming device;
Concrete form of implementation
Below, with reference to accompanying drawing form of implementation of the present invention is described.
Fig. 1～Fig. 4 represents the major part of the powder forming device 1 of the present invention's the 1st form of implementation, mark 10 is upper punch, mark 20 is low punches, mark 30 is plugs, mark 40 is punch dies, mark 50 is piston shoes boxes, and mark 60 is to measure the measuring mechanism (bottom dead centre revisal linear scale) of going up the distance L between the low punch, and P is a material powder.
Being provided with on punch die 40 is shaped uses hole 40a, with the center configuration of hole 40a plug 30 is arranged in this shaping.Chimeric upper punch cylindraceous 10 seals by the low punch cylindraceous 20 chimeric from the below with from the top with the space cylindraceous between hole 40a and the plug 30 to be formed at shaping, and has formed die cavity C.In this die cavity C, material powder P is pressurizeed, be shaped along the press-powder body Z of the shape of die cavity C.
The piston shoes box 50 of filling material powder P in die cavity C forms the box-shaped that lower surface opens wide, and (left and right directions among the figure) reciprocatingly slides before and after the upper surface state of contact of following surface and punch die 40.The never illustrated hopper of material powder P is supplied in the piston shoes box 50, and be positioned on the die cavity C, thereby the material powder P that remains in inside is dropped in the die cavity C, and fill by advancing to position shown in Figure 1.
The bottom dead centre revisal is installed between upper punch holding member 10A and the low punch holding member 20A with linear scale (measuring mechanism) 60, and will be to the distance between upper punch holding member 10A and the low punch holding member 20A, promptly, upper punch 10 exports as signal with the measured value that the interval of low punch 20 has carried out measuring.Preestablished desired value in the control part 90 that is transfused to this signal, flow that can fluid pressure cylinder 80 is controlled so that measured value becomes this desired value.Desired value is to make the thickness of the die cavity C between upper punch 10 and low punch 20 become the value of shaping target thickness.
In addition, also import piston shoes box position detection signal to control part 90, this signal is by the position of not shown piston shoes box position-detection sensor output and expression piston shoes box 50.
Then, with reference to Fig. 5 the powder forming method of the powder forming device that constitutes like that more than having adopted is described.In addition, in the action line chart shown in Figure 5, transverse axis represents upper punch 10 is carried out the angle of mechanically operated crank, and the longitudinal axis is represented the position of low punch and piston shoes box, and the top of the longitudinal axis is the advance side of piston shoes box 50 and the top of going up low punch.
When press molding, at first upper punch 10, low punch 20 and punch die 40 are disposed on the initial position respectively.
[filling work procedure]
Piston shoes box 50 is advanced (operation of advancing), as shown in Figure 1, make it to be opened on face on the die cavity C (Fig. 5 (a)), and fill material powder P.At this moment, piston shoes box 50 from the rear (right side of Fig. 1) forwards (left side of Fig. 1) advance, and move on the position shown in Figure 1, so beginning face opening on the rear side of die cavity C, face opening on the side forwardly then.Therefore, piston shoes box 50 is the relative long period of side opening in the wings, and to die cavity C base feed powder P, so the density of the material powder P that fills by rear side is high more more.
Then, as shown in Figure 2, piston shoes box 50 is retreated and keep out of the way (keeping out of the way operation) from die cavity C, and make low punch 20 with respect to punch die 40 risings (Fig. 5 (b)) at this initial stage of keeping out of the way operation, promptly, piston shoes box 50 is retreated, utilize the wall portion of the front side of piston shoes box 50 to scrape off the unnecessary material powder P of institute's mounting on punch die 40 and the plug 30, retreat to such an extent that low punch 20 is risen after by the back in wall portion than the front side of die cavity C, the part of material powder P that will be filled in the rear side of die cavity C thus boosts above the punch die 40, scrape off by piston shoes box 50 simultaneously, thereby, in the front and rear part amount that is filled into the material powder P among the die cavity C is carried out revisal.Like this, the volume of material powder P increases at the front side of die cavity C, and reduces at the rear side of die cavity C.
And then as shown in Figure 3, after piston shoes box 50 was kept out of the way from die cavity C fully, the low punch 20 that makes rising descended with respect to punch die 40 and turns back to initial position (Fig. 5 (c)).Thereby the material powder P that is pushed the die cavity C front side that plays on the punch die 40 turns back to (in the punch die 40) in the die cavity C, and material powder P has been filled in the die cavity C with its packed height front side height, mode that rear side is low.
That is, owing to material powder falls to being filled in the die cavity by nature from the piston shoes box, so the die cavity rear side density long at piston shoes box opening time is high relatively.Therefore, if fill with equal height on the whole, the amount of the material powder that the die cavity rear side that then density is high is filled is many more, and the material powder P of this occupied state is carried out press molding and the density of the press-powder body that obtains is uneven.
Relative therewith, in this form of implementation, packed height by making material powder is high and low at highdensity rear side at low-density front side, eliminates loading inhomogeneous on the advance and retreat direction of piston shoes box, thereby material powder P is filled among the whole die cavity C equably.
[drift driving operation]
Fig. 4 A～Fig. 4 C represents by driving the process of the press molding that low punch carries out.
(once driving operation)
At first, shown in Fig. 4 A, under the state that low punch 20 is fixed, make upper punch 10 drop to bottom dead centre (mechanical moving boundary position), the material powder P in the die cavity C is compressed.In this device, although design is that upper punch 10 drops to the double dot dash line position shown in Fig. 5 (d) (desirable bottom dead centre),, because in fact the deflections of device etc. can only drop to for example solid line position shown in Fig. 5 (e).
(in the design) desirable bottom dead centre of this upper punch 10 is set for, and be fixed in die cavity C about the big for example about 1mm of shaping target thickness that forms thickness specific pressure powder between the low punch 20 on the initial position.That is, do not drop under the situation of desirable bottom dead centre even do not produce deflection, stretching, extension and upper punch 10 at device, become the thickness state bigger than shaping target thickness of die cavity C yet, the press-powder body of thickness less than the shaping target thickness can not be shaped.
(secondary driving operation)
Then, shown in Fig. 4 B, the crank of Mechanical Driven upper punch 10 is stopped, upper punch 10 being fixed under the state of bottom dead centre, drive fluid pressure cylinder 80 and make low punch 20 become shaping target thickness (Fig. 5 (g)) from the thickness that initial position rises up to die cavity C.The mobile of the low punch 20 of this moment is to be undertaken by the measured value of feedback bottom dead centre revisal with linear scale 60.
Promptly, receive the flow of the control part 90 control fluid pressure cylinders 80 of detection signal with linear scale 61 from the loading revisal, and utilize the bottom dead centre revisal to measure the interval of low punch with linear scale 60, utilize control part 90 to control the driving of fluid pressure cylinder 80, low punch 20 is risen reach the shaping target thickness up to measured value.
At this moment, although boosted slightly because of low punch 20 risings make upper punch 10 sometimes (Fig. 5 (e ')), but owing to be that the measured value at the interval by feeding back low punch makes low punch 20 risings, so low punch 20 is driven to such an extent that reach that shaping target thickness and revisal upper punch 10 descend and the insufficient section that causes can make the thickness of press-powder body reach desired value up to the thickness of die cavity C.
Then, shown in Fig. 4 C, upper punch 10 is risen (Fig. 5 (h)), and plug 30 and punch die 40 are descended with respect to low punch 20, extract the press-powder body Z of formed thereby from punch die 40.In addition, drive the low punch 20 that rises in the operation at secondary and turn back to initial position (Fig. 5 (i)), become the state that the next press-powder body that is shaped is prepared.
As above can access global density like that evenly and be configured as the press-powder body Z of shaping target thickness.
In addition, the different shape of each component parts shown in the above-mentioned form of implementation and combination etc. are examples, in the scope that does not break away from purport of the present invention, can carry out various changes according to designing requirement etc.In illustrated embodiment, be upper punch 10 to be carried out Mechanical Driven, drive in the operation at secondary and utilize 80 pairs of low punches 20 of fluid pressure cylinder to drive once driving in the operation, but also can be opposite, adopt the formation of low punch being carried out Mechanical Driven, in secondary driving operation, upper punch is driven once driving in the operation.In addition, in above-mentioned form of implementation, adopted fluid pressure cylinder 80, still also can adopt various drive units such as electric servomotor as the secondary drive unit.
In addition, though in above-mentioned form of implementation, make bigger than shaping target thickness at the thickness that once drives formed die cavity C in the operation, but, because as long as be the shaping target thickness once driving the thickness that to go up low punch set positions forming cavity in the operation earlier, then only carry out secondary when thickness that deflection etc. makes die cavity does not become the shaping target thickness and drive operation and get final product producing, so control that can simplification device because of device.Utilize the words of this manufacturing process, if at the thickness that once drives die cavity in the operation less than the shaping target thickness, the press-powder body littler than desirable thickness that just be shaped is if but be effective for certain value under with regard to situation such as enough at the thickness of for example press-powder body on next precision.
Below with reference to Fig. 6 and Fig. 7 second kind of form of implementation of the present invention described.In CNC pressure apparatus 201 shown in Figure 6, drive punch die 205 with the die cavity C that has filled material powder P and upper punch respectively about in the of 208, low punch 209 is always fixing.
Punch die 205 is installed on the slid underneath device 203 that slides in the below guider 202 via push-down head 204, moves up and down under the driving of driving mechanisms such as ball screw framework (not shown).Be fixed in low punch 209 on the fixed head 213 below punch die 205, be configured to from below be entrenched in the die cavity C.
Can come in and go out upper punch 208 in die cavity C above low punch 209 with low punch 209 opposed to each other arranged coaxial.This upper punch 208 is installed in via top pressure head 207 on the top guider 210 that slides in the top slider 206, and wherein the top pressure head is made up of hydraulic piston 222 that upper punch plate 223 is installed and hydraulic cylinder 201.Top slider 206 is attached on the bent axle 212 via linkage 211, and bent axle 212 rotates under the effect of CD-ROM drive motor M (drive unit).CD-ROM drive motor M is the servo motor that drives, stops to control according to the program that is stored in the computer (control part) 220.
That is, in the pressure head 207, whole up by about CD-ROM drive motor (drive unit) the M driving, and hydraulic piston 222 is by about hydraulic means (secondary drive unit) 226 drivings.
And, on CNC pressure apparatus 201, in the upper punch plate 223 that is fixed with upper punch 208 and be fixed with fixedly pulling of low punch 209 and be provided with the linear scale (measuring mechanism) 214 that is used for measuring upper punch plate 223 and fixedly pulls the interval between 213 between 213.The measured value of this linear scale 214 is imported in the computer 220, and the computer 220 that has been transfused to this measured value is exported the driving signal of CD-ROM drive motor M and the driving signal of hydraulic efficiency servo-valve 224 according to program.
With reference to Fig. 7 the powder forming method that has adopted above-mentioned such CNC pressure apparatus 201 that constitutes is described.In addition, in action line chart shown in Figure 7, transverse axis is represented the anglec of rotation of the bent axle 212 of Mechanical Driven upper punch 208, and the longitudinal axis is represented the above-below direction of low punch 208,209 and punch die 205.
[drift driving operation]
At first, when press molding, earlier upper punch 208, low punch 209 and punch die 205 are configured in initial position respectively.
(once driving operation)
At first, under the state of having fixed low punch 209 and punch die 205 (a), make top pressure head 207 drop to bottom dead centre (mechanical moving boundary position) D, and close the die cavity C (i) that has filled material powder P.
(secondary driving operation)
When degree in crank angle becomes 180 ° and make top pressure head 207 when reaching bottom dead centre D, utilize the program of computer 220 that the CD-ROM drive motor M of Mechanical Driven top pressure head 207 is stopped, and the upper punch 208 that the decline by top pressure head 207 is descended stop to descend (ii).Then, when pressure head 207 stops to descend up, drive hydraulic efficiency servo-valve 224, and supply with hydraulic pressure to hydraulic cylinder 221, making hydraulic piston 222 is that upper punch 208 descends, and reaches setting value (thickness of die cavity C becomes the value of shaping target thickness) (iii) up to the measured value of linear scale 214.And, when upper punch 208 is descended, about half of the descending stroke by making punch die 205 decline upper punch 208 (b), material powder P in the die cavity C is urged from both sides up and down, be subjected to uniform plus-pressure effect, thereby on above-below direction, be compressed into uniform density.
Then, if the measured value of linear scale 214 becomes setting value, then hydraulic efficiency servo-valve 224 is controlled by computer 220, hydraulic piston 222 is risen, thereby upper punch 208 rises, start the running of CD-ROM drive motor M once more, upper punch 208 is risen (iv) with top pressure head 207, and make punch die 205 declines (c).Thus, be configured as product (press-powder body) Z of shaping target thickness
0Extracted and be positioned on the low punch 209 from punch die 205 (die cavity C).
By the above press-powder body Z that can obtain to be configured as the shaping target thickness like that
0
In addition, the different shape of each component parts shown in the above-mentioned form of implementation and combination etc. are examples, in the scope that does not break away from purport of the present invention, can carry out various changes according to designing requirement etc.In illustrated embodiment,, also can take on the contrary to drive and drive the low punch and the fixing formation of upper punch in the operations at two though fixed low punch 209 and drive and to drive upper punch 208 in the operation once driving operation and secondary.
In addition, though in above-mentioned form of implementation, make in that once to drive in the operation thickness of formed die cavity bigger than shaping target thickness, but, because as long as be the shaping target thickness once driving the thickness that to go up low punch set positions forming cavity in the operation earlier, then only carry out secondary when thickness that deflection etc. makes die cavity does not become the shaping target thickness and drive operation and get final product producing, so control and shortening manufacturing time that can simplification device because of device.Utilize the words of this manufacturing process, if at the thickness that once drives die cavity in the operation less than the shaping target thickness, the press-powder body littler than desirable thickness that just be shaped is if but be effective for certain value under with regard to situation such as enough at the thickness of for example press-powder body on next precision.
As previously discussed, according to the present invention and since the limit measuring go up low punch between edge the material powder press molding is arrived the shaping target thickness, so, even the loading of material powder produces deviation or framework and produces and stretch or deflection, the also press-powder body of manufacturing objective thickness stably.
By material powder is filled in the whole die cavity with even amount, and make being spaced apart of low punch carry out punching press definitely, just can stably make integral thickness, the uniform press-powder body of density.
Claims (12)
1, a kind of powder forming method, be behind the filling work procedure that material powder is filled in the die cavity, carry out the powder forming method that drift drives operation, wherein, to drive operation be to be filled into material powder in this die cavity carries out press molding between upper punch and low punch operation to drift;
Above-mentioned drift driving operation has: the thickness of driving either party's drift formed die cavity up between last low punch becomes the once driving operation of the state bigger slightly than shaping target thickness and measures the interval and the limit of going up low punch and control limit driving either party drift becomes above-mentioned shaping target thickness up to described measured value secondary driving operation.
2, a kind of powder forming method, be behind the filling work procedure that material powder is filled in the die cavity, carry out the powder forming method that drift drives operation, wherein, to drive operation be to be filled into material powder in this die cavity carries out press molding between upper punch and low punch operation to drift;
Above-mentioned drift drives operation to have: drive either party's drift and make the approaching once driving operation of low punch and control the limit and drive the above-mentioned either party at least who goes up low punch becomes the shaping target thickness up to above-mentioned interval of going up low punch secondary driving operation by above-mentioned when once driving operation and making above-mentioned interval of going up low punch greater than the shaping target thickness, limit.
3, powder forming method as claimed in claim 1, drive in the operation at above-mentioned drift, above-mentioned once drive operation and above-mentioned secondary drive drive in the operation above-mentioned on either party's drift in the low punch, drive in the operation fixedly the opposing party's drift at above-mentioned operation and the above-mentioned secondary of once driving.
4, powder forming method as claimed in claim 2, drive in the operation at above-mentioned drift, above-mentioned once drive operation and above-mentioned secondary drive drive in the operation above-mentioned on either party's drift in the low punch, drive in the operation fixedly the opposing party's drift at above-mentioned operation and the above-mentioned secondary of once driving.
5, powder forming method as claimed in claim 1 drives in the operation at above-mentioned drift, above-mentioned once drive fix in the operation above-mentioned on either party's drift in the low punch, and drive at above-mentioned secondary and to drive this drift in the operation; At the above-mentioned drift that drives the opposing party in the operation that once drives, and in above-mentioned secondary driving operation, fix this drift.
6, powder forming method as claimed in claim 2 drives in the operation at above-mentioned drift, above-mentioned once drive fix in the operation above-mentioned on either party's drift in the low punch, and drive at above-mentioned secondary and to drive this drift in the operation; At the above-mentioned drift that drives the opposing party in the operation that once drives, and in above-mentioned secondary driving operation, fix this drift.
7, as each described powder forming method of claim 1～6, above-mentioned filling work procedure is constituted, on making the upper surface that is disposed at above-mentioned punch die slidably and the open piston shoes box of lower surface advance to after the operation of advancing on the die cavity, make above-mentioned piston shoes box keep out of the way operation from what above-mentioned die cavity was kept out of the way, and in above-mentioned process of keeping out of the way operation, above-mentioned low punch is risen relatively with respect to above-mentioned punch die, and the part that will be filled into the material powder in the above-mentioned die cavity boosts on the above-mentioned punch die, the above-mentioned piston shoes box that utilization is kept out of the way scrapes off and is pushed a part that plays the material powder on this punch die, in the above-mentioned operation of keeping out of the way when finishing, above-mentioned low punch is turned back on the position of keeping out of the way before the operation with respect to the relative position of above-mentioned punch die.
8, a kind of powder forming device is to be filled into material powder in the die cavity carries out press molding between upper punch and low punch powder forming device, comprising:
Drive above-mentioned either party's drive unit up and down of going up low punch,
The secondary drive unit that the above-mentioned upper-lower position of going up the either party of low punch is finely tuned,
Be used for obtaining the above-mentioned measuring mechanism of going up the interval of low punch,
Feed back the measurement result of this measuring mechanism and control above-mentioned secondary drive unit becomes desired value up to this measurement result control part.
9, powder forming device as claimed in claim 8, an above-mentioned side who goes up in the low punch is driven by an above-mentioned drive unit and above-mentioned secondary drive unit.
10, powder forming device as claimed in claim 8, an above-mentioned side who goes up in the low punch is driven by an above-mentioned drive unit, and the opposing party is driven by above-mentioned secondary drive unit.
11, as each described powder forming device of claim 8～10, above-mentioned upper punch is driven by above-mentioned secondary drive unit.
12, as each described powder forming device of claim 8～10, above-mentioned low punch is driven by above-mentioned secondary drive unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP205621/2002 | 2002-07-15 | ||
| JP2002205621A JP2004042126A (en) | 2002-07-15 | 2002-07-15 | Powder molding method and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1649722A true CN1649722A (en) | 2005-08-03 |
| CN100522586C CN100522586C (en) | 2009-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028293096A Expired - Fee Related CN100522586C (en) | 2002-07-15 | 2002-07-25 | Powder compacting method and powder compacting system |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20060127268A1 (en) |
| EP (1) | EP1541327A4 (en) |
| JP (1) | JP2004042126A (en) |
| KR (1) | KR20050042773A (en) |
| CN (1) | CN100522586C (en) |
| AU (1) | AU2002323943A1 (en) |
| BR (1) | BR0212507A (en) |
| WO (1) | WO2004007184A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113453879A (en) * | 2019-02-18 | 2021-09-28 | 道尔斯特技术有限两合公司 | Method for powder compacting at least two compacts and powder compacting device |
| CN114535575A (en) * | 2017-05-29 | 2022-05-27 | 三菱综合材料株式会社 | Powder forming and pressing method and powder forming and pressing device for cutting blade compact |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7237730B2 (en) * | 2005-03-17 | 2007-07-03 | Pratt & Whitney Canada Corp. | Modular fuel nozzle and method of making |
| WO2008079074A1 (en) * | 2006-12-27 | 2008-07-03 | Result Press Ab | Apparatus and method for compacting powder |
| JPWO2008114827A1 (en) | 2007-03-20 | 2010-07-08 | 株式会社タンガロイ | Compression molding method for throw-away tip |
| US8316541B2 (en) * | 2007-06-29 | 2012-11-27 | Pratt & Whitney Canada Corp. | Combustor heat shield with integrated louver and method of manufacturing the same |
| RU2446949C2 (en) * | 2008-01-17 | 2012-04-10 | Михаил Алексеевич Паюсов | Briquette press |
| JP5428457B2 (en) * | 2009-03-30 | 2014-02-26 | 三菱マテリアル株式会社 | Powder molding equipment |
| JP5428456B2 (en) * | 2009-03-30 | 2014-02-26 | 三菱マテリアル株式会社 | Powder molding product manufacturing method and powder molding apparatus |
| CN102049875B (en) * | 2009-11-10 | 2014-08-27 | 北京宝粒特木煤机械制造有限公司 | Wood coal briquetting machine |
| CN102173085B (en) * | 2011-02-11 | 2013-10-02 | 北京理工大学 | Method and device for extrusion molding and explosion-proof relief of sensitive materials |
| IT201800006882A1 (en) * | 2018-07-03 | 2020-01-03 | FILTER PRESS TO DEHYDRATE INCOERENT WET MATERIAL | |
| JP7567522B2 (en) * | 2021-02-02 | 2024-10-16 | トヨタ自動車株式会社 | Motor Driven Powder Molding Machine |
| CN115366229B (en) * | 2021-08-16 | 2024-08-06 | 三峡大学 | Method for forming furnace liner blank by adopting honeycomb briquette furnace liner blank high-efficiency forming device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3029151B2 (en) * | 1991-08-31 | 2000-04-04 | ファナック株式会社 | Electric powder molding machine |
| JPH0557497A (en) * | 1991-09-04 | 1993-03-09 | Sumitomo Electric Ind Ltd | Nc powder compacting machine |
| JPH07115234B2 (en) * | 1991-11-25 | 1995-12-13 | 株式会社ヨシツカ精機 | Method of correcting pressure position in powder molding press |
| DE19506636C2 (en) * | 1995-02-25 | 1997-12-04 | Dorstener Maschf Ag | Filling device for filling a mold cavity in the molding table of a press, in particular a press for the building block industry |
| DE19846210A1 (en) * | 1998-10-07 | 2000-04-13 | Dorst Masch & Anlagen | Press for the production of moldings |
| JP2001062597A (en) * | 1999-08-30 | 2001-03-13 | Hoden Seimitsu Kako Kenkyusho Ltd | Pressurizing device |
| JP2001191199A (en) * | 1999-12-28 | 2001-07-17 | Sumitomo Special Metals Co Ltd | Compacting device, magnetic powder feeding method and rare earth magnet |
-
2002
- 2002-07-15 JP JP2002205621A patent/JP2004042126A/en active Pending
- 2002-07-25 EP EP02755655A patent/EP1541327A4/en not_active Withdrawn
- 2002-07-25 US US10/521,648 patent/US20060127268A1/en not_active Abandoned
- 2002-07-25 WO PCT/JP2002/007537 patent/WO2004007184A1/en not_active Application Discontinuation
- 2002-07-25 BR BR0212507-2A patent/BR0212507A/en not_active Application Discontinuation
- 2002-07-25 KR KR1020057000340A patent/KR20050042773A/en active Search and Examination
- 2002-07-25 CN CNB028293096A patent/CN100522586C/en not_active Expired - Fee Related
- 2002-07-25 AU AU2002323943A patent/AU2002323943A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114535575A (en) * | 2017-05-29 | 2022-05-27 | 三菱综合材料株式会社 | Powder forming and pressing method and powder forming and pressing device for cutting blade compact |
| CN114535575B (en) * | 2017-05-29 | 2024-04-26 | 三菱综合材料株式会社 | Powder molding pressing method and powder molding pressing device for cutting blade green compacts |
| CN113453879A (en) * | 2019-02-18 | 2021-09-28 | 道尔斯特技术有限两合公司 | Method for powder compacting at least two compacts and powder compacting device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050042773A (en) | 2005-05-10 |
| CN100522586C (en) | 2009-08-05 |
| EP1541327A4 (en) | 2005-10-05 |
| AU2002323943A1 (en) | 2004-02-02 |
| BR0212507A (en) | 2004-08-24 |
| JP2004042126A (en) | 2004-02-12 |
| AU2002323943A8 (en) | 2004-02-02 |
| EP1541327A1 (en) | 2005-06-15 |
| US20060127268A1 (en) | 2006-06-15 |
| WO2004007184A1 (en) | 2004-01-22 |
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