CN86108609A - Powder shaping press - Google Patents
Powder shaping press Download PDFInfo
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- CN86108609A CN86108609A CN86108609.0A CN86108609A CN86108609A CN 86108609 A CN86108609 A CN 86108609A CN 86108609 A CN86108609 A CN 86108609A CN 86108609 A CN86108609 A CN 86108609A
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- compression
- depression bar
- extrusion
- cam
- powder shaping
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Abstract
The present invention relates to a kind of metal dust moulding press.The present invention is by being provided with compression, extruding governor motion, can finish the task of compression, extrusion and prevention die come-up with a depression bar, therefore, simple in structure according to powder shaping press of the invention process, low cost of manufacture, and, because needn't use the stop relieving mechanism, do not exist in the moment that begins to extrude and to go out phenomenon, therefore, can improve the quality of product.Simultaneously, after guaranteeing that enough press times are arranged, can be compressed to other times in the small range, thereby can improve speed of production.
Description
The present invention relates to a kind of powder shaping press, promptly metal dust etc. is packed in the metal pattern, compressed, extrude (demoulding) processing, be 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 opening on the 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 invention 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.
According to powder shaping press of the invention process, 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, also be provided with compression between above-mentioned two cams and depression bar, extrude governor motion, two cams are same depression bars by this compression, the drive of extrusion governor motion.
Effect of the present invention is conspicuous, at first, task of only using a depression bar to finish compression, extrude and stop die to float in the present invention, therefore, simple in structure, low cost of manufacture, secondly, in the present invention, 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, reached with better simply mechanism and method of operating according to powder shaping press of the invention process, produce 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 invention process.
Fig. 3 is the left cutaway view of press shown in Figure 2.
Fig. 4 is the compression according to powder shaping press of the invention process, the cutaway view of extrusion governor motion.
Fig. 5 is according to the swing arm of powder shaping press of the invention process and the cutaway view of the syndeton between the down-pressed pole.
Fig. 6 is the trip map according to a certain goods of compacting of the working end of the swing arm of powder shaping press of the invention process, 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 invention process.
Fig. 9 is the schematic diagram according to the third embodiment of powder shaping press of the invention process.
The present invention is further illustrated below in conjunction with accompanying drawing.
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).Upper piston 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 connecting rod that connects turning rolls and adjustment rack 28) by back-up ring 37,38 are individually fixed on the upper end 28a of adjustment rack 28 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, the rotational angle that mold shaft is represented that cam 26,27 is housed and the main shaft 1 of upper punch 8 is housed by crank 6 and piston 4 etc.When compacting action beginning, at first as shown in Figure 6, upper punch 8 begins to descend along curve 1 under the driving of upper piston 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 end, 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 35 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.
Errata
1. after the preceding revisal of the capable revisal of file name page or leaf
Open on the specification 1 14 and rise and
24 also be provided with compression, also be provided with depression bar fixedly connected,
And about the rotation work along with cam
The compression of motion,
2 fall 9 Fig. 4 for a figure among Fig. 4 is
2 fall 8 figure.Figure, b figure is along A-A among a figure
The profile of hatching
2 fall 7 Fig. 5 for a figure among Fig. 5 is
2 fall 6 figure.Figure, b figure is along B-B among a figure
The profile of hatching.
37 upper pistons, 4 top shoes 4
The adjustable connector of 3 24 connecting rod) passes through back-up ring
…37、38 37a、37b
59 mold shaft transverse axis
9 pistons, 4 top shoes 4
5 10 angles.Angle, the longitudinal axis are represented upper punch 8
, the working end of swing arm 39 and recessed
Lifting position.
5 11 upper pistons, 4 top shoes 4
And about the rotation work along with cam
The compression of motion,
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 present invention is characterised in that, also is provided with compression between two cams and the depression bar, extrudes governor motion, and two cams drive a depression bar motion by this compression, extrusion governor 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.
According to the described powder shaping press of claim 2, it is characterized in that 3, described compression, extrusion roller devices comprise compression, extrude roller shaft and be installed in this compression respectively, extrude compression, the extrusion roller on the roller shaft.
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 |
|---|---|---|---|
| CN86108609.0A CN1004684B (en) | 1986-12-20 | 1986-12-20 | Powder molding press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86108609.0A CN1004684B (en) | 1986-12-20 | 1986-12-20 | Powder molding press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86108609A true CN86108609A (en) | 1988-07-06 |
| CN1004684B CN1004684B (en) | 1989-07-05 |
Family
ID=4803990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86108609.0A Expired CN1004684B (en) | 1986-12-20 | 1986-12-20 | Powder molding press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1004684B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103522577A (en) * | 2013-10-22 | 2014-01-22 | 严培义 | Undershoot springback device of powder forming machine |
| CN104039542A (en) * | 2011-10-21 | 2014-09-10 | 菲特压片机械有限公司 | Press |
| CN107214991A (en) * | 2017-07-14 | 2017-09-29 | 广西壮族自治区农业科学院农业资源与环境研究所 | A kind of matrix compression-molding apparatus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074983C (en) * | 1998-04-16 | 2001-11-21 | 朱锦忠 | Powder shaping press |
| CN100364763C (en) * | 2006-02-15 | 2008-01-30 | 南京东部精密机械有限公司 | Top pressing system for large powder press |
-
1986
- 1986-12-20 CN CN86108609.0A patent/CN1004684B/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104039542A (en) * | 2011-10-21 | 2014-09-10 | 菲特压片机械有限公司 | Press |
| CN104039542B (en) * | 2011-10-21 | 2016-03-09 | 菲特压片机械有限公司 | press |
| CN103522577A (en) * | 2013-10-22 | 2014-01-22 | 严培义 | Undershoot springback device of powder forming machine |
| CN103522577B (en) * | 2013-10-22 | 2015-05-13 | 宁波汇众粉末机械制造有限公司 | Undershoot springback device of powder forming machine |
| CN107214991A (en) * | 2017-07-14 | 2017-09-29 | 广西壮族自治区农业科学院农业资源与环境研究所 | A kind of matrix compression-molding apparatus |
| CN107214991B (en) * | 2017-07-14 | 2023-08-29 | 广西壮族自治区农业科学院农业资源与环境研究所 | Matrix compression molding device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1004684B (en) | 1989-07-05 |
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| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
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| 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 |