CN86210689U - Powder-forming press - Google Patents
Powder-forming press Download PDFInfo
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- CN86210689U CN86210689U CN198686210689U CN86210689U CN86210689U CN 86210689 U CN86210689 U CN 86210689U CN 198686210689 U CN198686210689 U CN 198686210689U CN 86210689 U CN86210689 U CN 86210689U CN 86210689 U CN86210689 U CN 86210689U
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- CN
- China
- Prior art keywords
- compression
- depression bar
- cam
- extrusion
- extrude
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- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The utility model relates to a metal powder-forming press. As the utility model is provided with compression and extrusion adjusting mechanisms, the task of compression, extrusion and preventing a concave die from floating upwards can be completed through a pressure lever. The powder-forming press has simple structure and low cost. As the powder-forming press has no need of using a stop and release mechanism, the impact phenomenon does not exist when the extrusion is started, and thus the quality of the product can be enhanced. Meanwhile, after the enough press time is ensured, other time can be compressed to the minor range, and the production speed can be enhanced.
Description
The utility model relates to a kind of powder shaping press, promptly metal dust etc. is packed in the metal pattern, and is compressed, extrude (demoulding) processing, is compressed into the powder shaping press of regulation shape.
The Japan clear 60-162597 of publication proposes a kind of powder shaping press shown in Fig. 1 (a) and Fig. 1 (b).This press extrudes cam 123,124 mainly by the compression of being located on the main shaft 103, compression, extrusion bar 127,128, formations such as fork 148 and stop relieving mechanism.During compression, compression cam 123 is depressed the base plate 120 that links into an integrated entity with die 112 and down-pressed pole 117 by constrictor 127, the roller 148a, the 147a that are arranged at fork 148 1 ends.Discharge and when extruding, extrude cam 124 by extruding bar 128, thus earlier, after the roller 149a that depresses push rod 141 and be located at fork 148 1 ends depress 146a and base plate 120 discharges and the extrusion process.Also promptly the compression of this press, extrusion and release function are realized by compression, extrusion bar 127,128 and relieving mechanism by compression cam 123, extrusion cam 124 respectively, so this press part is many, and complex structure and cost are expensive.And, in the dispose procedure before compression ends and extrudes beginning, in order to prevent that die 112 from rising along with the rising of upper punch 108, constrictor 127 must give 120 1 downforce of base plate preventing the rising of die 112 by roller 148a, 147a, but is discharging at the end, also promptly in moment that crank 134 and retainer 137 are thrown off, because the effect of this downforce, die 112 can be subjected to a unexpected downward impact, therefore, can bring certain influence to the quality of stampings in the die 112.
Task of the present utility model aims to provide a kind of above-mentioned various shortcoming that overcome, compression, extrude cam respectively by compression, extrude governor motion and depression bar and a fork and finish above-mentioned compression, extrusion and prevention die rising task, and do not exist above-mentioned impact phenomenon simple in structure, cost is low and the better powder press of performance.
Powder shaping press according to the utility model enforcement, its compression, extrusion (demoulding) mechanism comprise the compression cam of being located on the main shaft and extrude cam, depression bar with this two cam action, with the interlock of this depression bar, the swing arm that can freely swing around a fulcrum, and can be with the motion of this swing arm, the down-pressed pole that is connected with die, between above-mentioned two cams and depression bar, also be provided with the compression of fixedlying connected with depression bar and moving up and down along with the rotation of cam, extrude governor motion, two cams by this compression, what extrude the governor motion drive is same depression bar.
Effect of the present utility model is conspicuous, at first, task of in the utility model, only using a depression bar to finish compression, extrude and stop die to float, therefore, simple in structure, low cost of manufacture, secondly, in the utility model, because compression, extrusion governor motion are arranged, so needn't adopt the stop relieving mechanism in the prior art, there is not impact phenomenon in the moment that begins to extrude, but quite steady, so the quality of product can be improved on the basis of prior art.So the powder shaping press of implementing according to the utility model has reached with better simply mechanism and method of operating, produces the purpose of quality product.
The drawing explanation:
Fig. 1 (a) is the longitudinal section of Japanese publication powder shaping press that clear 60-162597 proposes.Fig. 1 (b) is the profile along Fig. 1 (a) II-II line.
Fig. 2 is the longitudinal section according to first kind of embodiment of powder shaping press of the utility model enforcement.
Fig. 3 is the left cutaway view of press shown in Figure 2.
A figure is the compression according to the powder shaping press of the utility model enforcement, the cutaway view of extrusion governor motion among Fig. 4, and b figure is the profile along A-A hatching among a figure.
A figure is the swing arm of the powder shaping press implemented according to the utility model and the cutaway view of the syndeton between the down-pressed pole among Fig. 5, and b figure is the profile along B-B hatching among a figure.
Fig. 6 is the trip map according to a certain goods of compacting of the working end of the swing arm of the powder shaping press of the utility model enforcement, die, upper punch.
Fig. 7 is cam and the roller location drawing corresponding with each point position on the trip map shown in Figure 6.
Fig. 8 is the schematic diagram according to second kind of embodiment of powder shaping press of the utility model enforcement.
Fig. 9 is the schematic diagram according to the third embodiment of powder shaping press of the utility model enforcement.
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 2, main shaft 1 is supported on the top of fuselage 3 by bearing 2, and main shaft 1 is driven by gear reduction (not drawing among the figure) by power source (not drawing among the figure).Top shoe 4 is connected on the crank axle 7 on the main shaft 1 freely by connecting screw rod 5 and 6 liftings of crank adapter sleeve.
The press die set is made of upper punch 8, die 9, core bar 10, low punch 11, upper punch 8 is connected on the upper piston 4 by adapter sleeve 60, die 9 is fixedly set in the hole of work top 12, and is connected with lower pulling plate 14 by work top 12, guide post 13.Guide post 13 is supported and can freely be moved up and down by the pilot hole on the fuselage 21, an end that is placed in the pneumatic cylinder (or being hydraulic cylinder) 22 outside the guide post 13 is connected with fuselage, the other end is connected with the lower surface of work top 12, it always makes its active force that moves upward for 12 1 of work tops, and core bar 10 is connected with work top 12 by connecting plate 16, connecting rod 15.Low punch 11 links to each other with piston 18 by bearing 17, and piston 18 is located in the oil cylinder 19 of fixedlying connected with fuselage 3, makes oil cylinder 19 become the pressure pad of low punch 11.One end of down-pressed pole 23 is connected with lower pulling plate 14, the other end be positioned at fuselage 3 on limiting plate 24 under nut 25 be connected, adjusting nut 25 can change the upper limit position (immediate shipment powder height) of die 9.
As shown in Figure 4, end at main shaft 1 is equipped with curve shape and a compression cam that has nothing in common with each other mutually 26 and extrusion cam 27, cam 26 on the upper end of adjustment rack 28 28a and main shaft 1, between 27, with cam 26,27 corresponding positions are respectively equipped with regulates compression time and the compression of the time of extrusion, extrude and regulate turning rolls 29,30, with compression, extrude cam 26,27 compressions of contact respectively, extrude roller 31,32 respectively by being located at the roller shaft 33 on the turning rolls, 34 are articulated in turning rolls 29, in 30, this two pair roller and roller shaft constitute compression respectively, extrude roller devices compression adjustment bolt 35, extrude an end (35 of regulating bolt 36,36 are the adjustable connector that connects turning rolls and adjustment rack 28) by back- up ring 37a, 37b is individually fixed on the upper end 28a of adjustment rack 28, the other end and turning rolls 29,30 are threaded.By regulating bolt 35,36, can change the relative position of turning rolls 29,30 and adjustment rack 28, can change the relative position of roller 31,32 and cam 26,27 respectively.
As shown in Figure 3, support by two fairleads 44 that are fixed on the fuselage 3, and the upper end that can only free-moving along the vertical direction depression bar 38 and the lower end 28b of adjustment rack 28 link into an integrated entity, swing arm 39 is arranged at the press central lower, and can freely rotate around the fulcrum 40 that is fixed on the fuselage, fulcrum 40 positions are arranged at the middle part of swing arm, the lower end of depression bar 38 is connected with swing arm 39 by slide block free to rotate 41 that is connected in depression bar 38 lower ends and the chute 42 that is positioned at swing arm 39 1 ends, and an end of compression spring 43 is connected with the lower end of fairlead 44.The other end is connected with the lower end of depression bar 38, and this spring 43 always acts on the depression bar 38 lower pulling force so that roller 31 is in contact condition with cam 26 or roller 32 with cam 27.
The other end of swing arm 39 is that the working end is connected with down-pressed pole 23 adjustable grounds, down-pressed pole 23 is provided with regulates the adjusting device that die upper and lower limit position is used, the structure of this connection and adjusting device as shown in Figure 5, mainly comprising can be along regulating sleeve 48, the slide block 47 of down-pressed pole 23 upper and lower slips, be located at the chute 46 of swing arm 39 1 ends, be located at the flange 49 on the down-pressed pole 23 of regulating sleeve 48 belows, be fixed in the limiting plate 24 on the fuselage 3 of flange 49 belows, be positioned at these limiting plate 24 belows, with the adjusting nut 25 that is threaded on the down-pressed pole 23.Regulating sleeve 48 is placed on the down-pressed pole 23 of limiting plate 24 tops, and place in the slide block 47, regulating sleeve 48 is connected by screw thread 50 with slide block 47, slide-bar 51 places in the slide block 47, slide block 47 places in the chute 46, and slide-bar 51 can have trace to rotate in slide block 47, and slide block 47 can move along chute 46, by regulating the distance between the upper surface 53 that regulating sleeve 48 can change the lower surface of regulating sleeve 48 and the flange 49 on the down-pressed pole 23, thereby can regulate the lower position of die.And the position of adjusting nut 25 when contacting with limiting plate 24 is the upper limit position of down-pressed pole 23 dies, can regulate this upper limit position by adjusting nut 25.
In the present embodiment, because depression bar 38 and down-pressed pole 23 are positioned at the both sides of the fulcrum 40 of swing arm 39, so when depressing die 9, depression bar 38 moves upward, both direction of motion is opposite.But the other end of the swing arm of swinging with depression bar 38, the working end direction of motion that is swing arm is consistent with die 9, and die 9 descends with this working end just, so, Fig. 6 impulse stroke figure of depression bar 38 that do not draw, and shown the impulse stroke figure of working end.
Fig. 6 is the impulse stroke figure of the powder shaping press major part in process in the present embodiment, wherein, 1., 2., 3. be respectively the working end of upper punch 8, swing arm 39 and the stroke curve of die 9, the shape that be located at compression on the main shaft, extrudes cam 26,27 is made by job requirement in advance.When main shaft rotated, cam drove compression, extrudes adjustment rack by roller, thereby by depression bar 38, swing arm 39, down-pressed pole 23, die 9 is descended, fixed low punch 11 just can cooperate upper punch 8, from below compressing powder goods, and further the goods that press is ejected outside the die.Its concrete actuating length as shown in Figure 6.
In Fig. 6, transverse axis is represented to be equipped with cam 26,27 and by crank 6 and top shoe 4 etc. the rotational angle of the main shaft 1 of upper punch 8 is housed, and the longitudinal axis is represented the working end of upper punch 8, swing arm 39 and the lifting position that die 9 changes with this rotational angle.When compacting action beginning, at first as shown in Figure 6, upper punch 8 begins to descend along curve 1 under the driving of top shoe 4.When upper punch 8 was in Fig. 6 (a) some position, upper punch 8 did not also enter in the die 9, and the corresponding cam and the position of roller are shown in a figure among Fig. 7.When upper punch 8 metal dusts firm and in the die 9 contact, between the lower surface 52 of regulating sleeve 48 and the upper surface 53 of flange 49 gap is arranged, this gap is the precommpression gap.When upper punch 8 begin to embed die to press down promptly begin to carry out precommpression after, cam begins to rise by the end that compression, extrusion governor motion make depression bar 38 reach the swing arm 39 that links to each other with depression bar 38, thereby make the other end of swing arm 39, be that its working end begins to descend along curve 2, when precommpression finished, the upper surface 53 of flange 49 just contacted with the lower surface 52 of regulating sleeve 48.Precommpression finishes swing arm working end, back and continues to descend, and down-pressed pole 23 is descended by flange 49, thereby make punch 9 as curve 3. shown in, 2. beginning descends with curve, in this process, compress, to b point compression knot, at this moment, the position of cam and roller is shown in the b figure among Fig. 7, by regulating maximum compressibility or the compression time that bolt 3 can change depression bar 38.Thereafter, upper punch 8 begins to rise to the c point, at b to c, but does not comprise that the location dimension of depression bar 38 is held in compression position at the end, and pushes down the down-pressed pole 23 that links into an integrated entity with die 9 by swing arm 39 in the process that c orders, and stops die 9 to rise, at this moment.Shown in the b among Fig. 7, pinch rolloer 31 is in contact condition with compression cam 26, is in disengaged condition and extrude cam 27 with extrusion roller 32.During to the c point, begin to carry out the extrusion process, because pinch rolloer 31 and extrusion roller 32 pass through separately turning rolls and connector and adjustment rack 28 and depression bar 38 formations one rigid body respectively, therefore along with extrude roller 32 and extrusion cam 27 contact and by jack-up, comprise that the whole rigid body that extrudes roller also is lifted thereupon, so pinch rolloer 31 beginnings are thrown off with compression cam 26, at this moment, the relative position of roller and cam is shown in the c figure among Fig. 7.Thereafter, upper punch 8 continues to rise, and the working end of swing arm 39 and die 9 continue to descend along the curve that coincides together under the effect that extrudes cam 27, and dropping to the d point is lower-limit point, extrude and finish, at this moment the relative position of cam and roller is shown in the d figure among Fig. 7.At this moment, compression cam 26 keeps disengaged condition with pinch rolloer 31, is in maximum extrusion state and extrude roller 32 with extrusion cam 27.Can change maximum extruder output or maximum extrusion time by regulating extrusion adjusting bolt, regulate the lower position that regulating sleeve 48 can change die 9.
Extrude when finishing, the upper surface of die 9 and core bar 10 and the upper surface of low punch 11 are in the same plane, and after low punch 11 was released stampings, die and depression bar began to return to initial position separately.
In the above-described embodiments, depression bar 38 is located at the both sides of the fulcrum 40 of swing arm 39 with down-pressed pole 23, but also can allow depression bar 38 and down-pressed pole 23 be located at the homonymy of fulcrum 40 as shown in Figure 8.Label identical with Fig. 2, Fig. 3 among Fig. 8 is represented identical or suitable part.At this moment, if down-pressed pole 23 is located between depression bar 38 and the fulcrum 40, can reduce action of cam power relatively.If depression bar 38 is located between down-pressed pole 23 and the fulcrum 40, then can reduce the stroke of depression bar 38 relatively.Among Fig. 8, depression bar 38 is consistent with the direction of motion of down-pressed pole 23.
Again, in Fig. 3 and Fig. 8, swing arm 39 all is located at the below of main shaft 1, but also can be located at swing arm 39 top of main shaft 1 as shown in Figure 9.Label identical with Fig. 2, Fig. 3 among Fig. 9 is represented identical or suitable part.
In addition, down-pressed pole 23 can have multiple with the syndeton and the adjustment structure of swing arm, for example as shown in Figure 9, regulating sleeve 48 is moved on to the below of swing arm 39, and establish external screw thread, while also suitably changes the adjusting nut 25 that limits the use of on the adjusting die and establishes external screw thread, when regulating upper and lower limit, just can operate outside by transmission devices such as worm and gears.
In addition, compression, the adjustable connector that extrudes in the governor motion also can be without bolt, and by regulate chute, hydraulic cylinder waits and connects roller shaft and adjustment rack.
Claims (6)
1, a kind of powder shaping press, its compression, extrusion (demoulding) mechanism comprise: be located at the compression cam on the main shaft and extrude cam, depression bar with this two cam action, with the interlock of this depression bar, the swing arm that can freely swing around a fulcrum, and can be with the motion of this swing arm, the down-pressed pole that is connected with die, the utility model is characterised in that, also be provided with the compression of fixedlying connected with depression bar and moving up and down along with the rotation of cam between two cams and the depression bar, extrude governor motion, two cams by this compression, extrude governor motion and drive a depression bar motion.
2, according to the described powder shaping press of claim 1, it is characterized in that, described compression, extrusion governor motion comprise the adjustment rack of fixedlying connected with depression bar, the adjustable connector that adjustment rack and following roller devices are coupled together is connected compression on the adjustment rack adjustablely, extrudes roller devices in the position respectively by this adjustable connector.
3, according to the described powder shaping press of claim 2, its feature exists, in described compression, extrude roller devices and comprise compression, extrude roller shaft and be installed in compression, extrusion roller on this compression, the extrusion roller shaft respectively.
4,, it is characterized in that described depression bar and down-pressed pole are positioned at the both sides of swing arm fulcrum, and the direction of motion of this two depression bar is opposite according to the described powder shaping press of claim 1.
According to the described powder shaping press of claim 1, it is characterized in that 5, described down-pressed pole is provided with regulates the adjusting device that die upper and lower limit position is used respectively, and on fuselage, be provided with the limiting plate used of restriction upper limit position and cooperate with it.
6, according to the described powder shaping press of claim 5, it is characterized in that, the described adjusting device of using die upper and lower limit position of regulating respectively is nut and regulating sleeve, and, the nut that limits the use of in this adjusting is positioned at the below of described limiting plate, and the regulating sleeve that this adjusting limits the use of down is positioned at the top of described limiting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198686210689U CN86210689U (en) | 1986-12-23 | 1986-12-23 | Powder-forming press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198686210689U CN86210689U (en) | 1986-12-23 | 1986-12-23 | Powder-forming press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86210689U true CN86210689U (en) | 1987-12-16 |
Family
ID=4812326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN198686210689U Withdrawn CN86210689U (en) | 1986-12-23 | 1986-12-23 | Powder-forming press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86210689U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100473521C (en) * | 2006-03-31 | 2009-04-01 | Tdk株式会社 | Molding apparatus |
-
1986
- 1986-12-23 CN CN198686210689U patent/CN86210689U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100473521C (en) * | 2006-03-31 | 2009-04-01 | Tdk株式会社 | Molding apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |