CN2571577Y - Reciprocative column guide rail powder feeder for warm-pressing technology of powder metallurgy - Google Patents
Reciprocative column guide rail powder feeder for warm-pressing technology of powder metallurgy Download PDFInfo
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- CN2571577Y CN2571577Y CN 02270829 CN02270829U CN2571577Y CN 2571577 Y CN2571577 Y CN 2571577Y CN 02270829 CN02270829 CN 02270829 CN 02270829 U CN02270829 U CN 02270829U CN 2571577 Y CN2571577 Y CN 2571577Y
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- powder
- plate
- flashboard
- feed shoe
- pressing technology
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Abstract
The utility model relates to a reciprocating column guide rail powder feeder for warm-pressing technology of powder metallurgy. The powder feeder is composed of two parts such as a feeding part and a driving part, wherein, the feeding part is composed of a cover plate 12, a gate plate 13, an inserting plate 14, a power loading shoe, a spring 11, and a heat insulating layer 10, and the driving part is composed of a connecting plate 2, a slide block 3, a guide sleeve 7, a pin bolt 4, guide rails 5, a bottom plate 6, a cylinder 8, and a shaft connecting plate 9. The centerline of the cylinder 8 is in parallel with the centerlines of the two guide rails 5 mutually, and is positioned in a vertical halving surface perpendicular to the centerlines of the two guide rails 5. The centerline of the cylinder 8 passes through the centroid of the powder loading shoe, which has good centering property. The utility model has the advantages of reasonable design, simple structure, easy fabrication and convenient operation. The powder feeder can feed powder accurately and uniformly with smooth motion, and completely achieve the requirement of powder feeding for warm pressing technology. The utility model is favorable to popularization and application of advanced warm pressing technology.
Description
Technical field
The utility model relates to PM technique, specifically is meant in warm-pressing technology, the thermal-pressing powder after the heating is sent into the pay-off of mould.
Background technology
Adopting warm-pressing technology to make high density high-performance iron-based powder metallurgy parts, is the advanced technology that suitability for industrialized production was succeeded in developing and be applied to the nineties.But warm-pressing technology not only requires powder temperature evenly, accurately, but also requires the powder feeder powder feeding accurately, evenly, fluent movements, and the powder that flows out from the temperature and pressure heater is being sent in the mold process by powder feeder, and it is little to guarantee that the powder heat scatters and disappears.Satisfying above-mentioned condition just can make warm-pressing technology produce and guarantee the quality of product smoothly.Therefore provide a kind of powder feeder that satisfies above-mentioned requirements, become warm-pressing technology and realize the requisite key of suitability for industrialized production.The powder feeder that is used for powder metallurgy production at present has following three types basically:
1. reciprocating type direct powder feeder
This system generally is made up of feed shoe and drive unit.Feed shoe links to each other with powder hose, and the mould platform of former is as spigot surface, and drive unit promotion feed shoe moves back and forth on the mould platform of former and carries out direct powder feeding.Owing to there is not provision for thermal insulation, the heat of powder can be lost to drive unit, makes drive unit produce thermal deformation, and back and forth the powder feeding campaign is restricted.In addition, a little less than the mould platform guide effect of former, be unfavorable for the powder powder feeding of poor mobile performance.
2. reciprocating type metering powder feeder
The action of this system is identical with reciprocating type direct powder feed system.Different is that the feed shoe of reciprocating type metering and confession tube cell directly are not communicated with.During the dress powder quantity is transported to cavity impression enterprising luggage powder from supplying the somewhere under the tube cell with feed shoe through the powder that measures.Meanwhile, confess in the future that with a baffle plate powder of tube cell cuts off.Carry the powder action by driving with the direct-connected machinery of feed shoe, device pneumatic or hydraulic pressure.In carrying out the powder feeding process, keep motionless for tube cell.Owing to there is not provision for thermal insulation, the heat of powder can be lost to drive unit.In addition, also be unfavorable for the powder powder feeding of mobile difference.
3. camber powder feeder
This system is generally used for the fixed mechanical type press of former.It utilizes feed shoe to rotate on cavity impression and adorns powder, so generally be referred to as the camber powder feeder.Feed shoe is fixed on the former platen, by action for powder driving cam control feed shoe.Equally, do not have provision for thermal insulation, the heat of powder will inevitably be lost on other device by feed shoe, equally also has the shortcoming of above-mentioned two kinds of powder feeders.
Summary of the invention
The purpose of this utility model is exactly in order to overcome the shortcoming of above powder feeder, designs a kind of simple in structure, widely applicable, powder feeding accurately, evenly, and the powder metallurgy warm-pressing technology of fluent movements is with reciprocating type cylindrical guide powder feeder.
A kind of powder metallurgy warm-pressing technology is with reciprocating type cylindrical guide powder feeder, it comprises feeding and drives two parts, its feeding partly is made up of cover plate, flashboard, plate, feed shoe, spring and heat insulation layer, connecting relation between them is as follows: the cover plate and the flashboard that are fixedly mounted on the press mould platform match, have dumping pit on the flashboard, cover plate offers charging aperture, during not feeding, dumping pit and charging aperture stagger mutually; During feeding, the centerline of dumping pit and charging aperture is on same straight line; The feed shoe inboard has vertical channel some and the plate interference fit that is used to change the feed shoe volume, and feed shoe is fixedlyed connected with the connecting shaft plate with connecting plate, and heat insulation layer is equipped with in the centre; End face is on same horizontal plane on the last end face of feed shoe and the connecting plate, be positioned at that two sides of flashboard on end face are provided with the flange that limits its relative cover plate sliding distance on this, a side flashboard flange that moves back and forth near drive part at feed shoe is connected with at least two springs, and the other end of spring all connects on the cover board; Drive part is made up of connecting plate, slide block, guide pin bushing, pin, guide rail, base plate, cylinder, connecting shaft plate, connecting relation between them is as follows: what two cylindrical guides were parallel to each other is fixedly mounted on the base plate, slide block and connecting plate are connected as a whole, and the guide pin bushing on two cylindrical guides is arranged in slide block.Cylinder is installed on the base plate, and two center lines of its center line and two guide rails are parallel to each other, and is positioned on the vertical bisector plane of two center line plane of guide rail, and the center line of cylinder is by the barycenter of feed shoe.
Dumping pit on the flashboard and the pass between the charging aperture on the cover plate are: the distance of establishing between flashboard two side flanges is L, and dumping pit center and the flashboard distance between flanges that is not connected spring are from being P, and the dumping pit diameter is R; The width of cover plate on the feed shoe direction of motion is k, and the charging aperture diameter is r, and the pass between them is: R=r+ (0～10 millimeter), p=k/2, L-k=R+ (0～30 millimeter).
The flashboard material is a heat-barrier material, preferably selects the good phenoplasts of heat-insulating property for use.
The utility model has been compared following advantage with existing powder feeder:
1. this powder feeder is reasonable in design, and is simple in structure, owing to take provision for thermal insulation, makes drive part reduced by heat conducting the influence greatly, can be because of thermal expansion does not produce distortion and influence powder feeding, thereby the powder temperature that guarantees to be sent to mould evenly, accurate; Because the displacement of flashboard can significantly reduce the leakage amount of powder much smaller than feed shoe displacement; Owing to adopt active plugboard can arbitrarily change the volume that feed shoe is adorned powder, can adapt to the needs of various production capacity; Because the center line of cylinder is good to neutrality by the barycenter of feed shoe.
2. adopt the guide rail orientation, make powder feeding accurately, evenly, fluent movements.Powder to the flowability difference is all applicable.
3. this powder feeder can cooperate fixedly former, also can cooperation activity former, and widely applicable.
4. the utility model powder feeder reaches the requirement of warm-pressing technology to powder feeding fully, and is widely applicable and easily manufactured, easy and simple to handle, so it will promote applying of advanced powder metallurgy warm-pressing technology.
Description of drawings
Fig. 1 is the structural representation front view of powder metallurgy warm-pressing technology with reciprocating type cylindrical guide powder feeder;
Fig. 2 is the profile in A-A cross section among Fig. 1;
Fig. 3 is the profile in B-B cross section among Fig. 2.
The specific embodiment
The feeding part is made up of cover plate 12, flashboard 13, plate 14, feed shoe 1, spring 11 and heat insulation layer 10 as shown in Figure 1 and Figure 2.Cover plate 12 is fixedly mounted in above the press mould platform, and the short tube on it connects the powder heater feed pipe.Feed shoe 1 inboard has vertical channel some and plate 14 interference fit that are used to change feed shoe 1 volume, plate 14 bottom surfaces with the bottom surface of feed shoe 1 on same horizontal plane, end face is higher than the end face of feed shoe 1, vertical channel adapts in its thickness and the feed shoe, offer the number of vertical channel, can decide according to the scope of throughput variations, the thickness of present embodiment plate 14 is 3mm, its end face is higher than feed shoe 10mm, and the vertical channel number is 4 pairs.Feed shoe 1 is connected with connecting shaft plate 9 usefulness screws with connecting plate 2, and heat insulation layer 10 is equipped with in the centre.End face is on same horizontal plane on the last end face of feed shoe 1 and the connecting plate 2, and under the promotion of cylinder 8, feed shoe 1 can move back and forth on the mould platform.As shown in Figure 3, flashboard 13 is positioned on the last end face of feed shoe 1 and connecting plate 2, flashboard 13 both sides are provided with two flanges that limit its relative cover plate 12 sliding distances, side flange near drive part is right flange, the other end that right flange is connected with 11, two springs 11 of two springs all is connected on the cover plate 12; Spring 11 always is in extended state, when flashboard 13 under the restriction that is not subjected to plate 14, under the elastic force effect of spring 11, connect the right flange abut against cover 12 of spring 11, at this moment dumping pit on the flashboard 13 and the charging aperture on the cover plate 12 stagger mutually, and powder can not flow out from cover plate 12; When feed shoe 1 rollback in cover plate 12, when being in dress powder position, plate 14 promotes flashboard 13, makes the left flange end of flashboard 13 be close to cover plate 12, at this moment the centerline of dumping pit on the flashboard 13 and the charging aperture on the cover plate 12 is on same straight line, and powder enters feed shoe 1 by flashboard 13.As shown in Figure 3, the distance of establishing between flashboard 13 left and right two flanges is L, and dumping pit center and left distance between flanges are from being P, and the dumping pit diameter is R; The width of cover plate 12 on feed shoe 1 direction of motion is k, and the charging aperture diameter is r, and the pass between them is: R=r+ (0～10 millimeter), p=k/2, L-k=R+ (0～30 millimeter).
Drive part is made up of connecting plate 2, slide block 3, guide pin bushing 7, pin 4, guide rail 5, base plate 6, cylinder 8, connecting shaft plate 9 as shown in Figure 1, 2, their connecting relation is: what two cylindrical guides 5 were parallel to each other is fixedly mounted on the base plate 6, fixes by pin 4.Two guide pin bushings 7 are fixed in the slide block 3, and can on guide rail 5, slide, slide block 3 and connecting plate 2 are an integral body, cylinder 8 is installed on the base plate 6, two center lines of its center line and two guide rails 5 are parallel to each other, and are positioned on the vertical bisector plane of two center line plane of guide rail 5, and the center line of cylinder is by the barycenter of feed shoe, can not produce eccentric moment, good to neutrality.
Operation principle of the present utility model is: when being in dress powder position, feed shoe 1 is in cover plate 12, plate 14 promotes flashboard 13, make the flange end that does not connect spring 11 of flashboard 13 be close to cover plate 12, at this moment the centerline of dumping pit on the flashboard 13 and the charging aperture on the cover plate 12 is on same straight line, and powder enters feed shoe 1.When feed shoe 1 under cylinder 8 promotes, when carrying out powder feeding forward, flashboard 13 is not when being subjected to the restriction of plate 14, under the elastic force effect of spring 11, the flange end abut against cover 12 that connects spring 11, at this moment dumping pit on the flashboard 13 and the charging aperture on the cover plate 12 stagger mutually, and powder can not flow out from cover plate 12.The impeller-hub of feed shoe 1, connecting plate 2, slide block 3, cylinder 8 is installed as one, and when the impeller-hub of cylinder 8 moved back and forth under gas pressure, feed shoe 1, connecting plate 2, slide block 3 also moved back and forth together.
For insulation and adiabatic needs, flashboard 13 materials are selected the good heat-barrier material of heat-insulating property for use, and present embodiment is selected phenoplasts for use, make flashboard 13 not only play the effect of cutting off powder, and can play adiabatic effect.Because the displacement of flashboard 13 is much smaller than the displacement of feed shoe 1, this has just significantly reduced the leakage amount of powder.In the different vertical groove of plate 14 insertion feed shoes 1, the volume of feed shoe 1 powder of adorning is also different, like this, can change each powder sending quantity of feed shoe 1, can adapt to the needs of various production capacity.
Claims (4)
1. a powder metallurgy warm-pressing technology is with reciprocating type cylindrical guide powder feeder, it comprises feeding and drives two parts, the feeding that it is characterized in that it partly is made up of cover plate, flashboard, plate, feed shoe, spring and heat insulation layer, connecting relation between them is as follows: the cover plate and the flashboard that are fixedly mounted on the press mould platform match, have dumping pit on the flashboard, cover plate offers charging aperture, during not feeding, dumping pit and charging aperture stagger mutually; During feeding, the centerline of dumping pit and charging aperture is on same straight line; The feed shoe inboard has vertical channel some and the plate interference fit that is used to change the feed shoe volume, and feed shoe is fixedlyed connected with the connecting shaft plate with connecting plate, and heat insulation layer is equipped with in the centre; End face is on same horizontal plane on the last end face of feed shoe and the connecting plate, be positioned at that two sides of flashboard on end face are provided with the flange that limits its relative cover plate sliding distance on this, a side flashboard flange that moves back and forth near drive part at feed shoe is connected with at least two springs, and the other end of spring all connects on the cover board; Drive part is made up of connecting plate, slide block, guide pin bushing, pin, guide rail, base plate, cylinder, connecting shaft plate, connecting relation between them is as follows: what two cylindrical guides were parallel to each other is fixedly mounted on the base plate, slide block and connecting plate are connected as a whole, cylinder is installed on the base plate, two center lines of its center line and two guide rails are parallel to each other, and be positioned on the vertical bisector plane of two center line plane of guide rail, the center line of cylinder is by the barycenter of feed shoe.
2. a kind of powder metallurgy warm-pressing technology according to claim 1 is with reciprocating type cylindrical guide powder feeder, it is characterized in that dumping pit on the flashboard and the pass between the charging aperture on the cover plate are: the distance of establishing between flashboard two side flanges is L, dumping pit center and the flashboard distance between flanges that is not connected spring are from being P, and the dumping pit diameter is R; The width of cover plate on the feed shoe direction of motion is k, and the charging aperture diameter is r, and the pass between them is: R=r+ (0～10 millimeter), p=k/2, L-k=R+ (0～30 millimeter).
3. a kind of powder metallurgy warm-pressing technology according to claim 1 is with reciprocating type cylindrical guide powder feeder, it is characterized in that two guide pin bushing and slide block interference fit of combining as a whole of connecting plate on the cylindrical guide.
4. a kind of powder metallurgy warm-pressing technology according to claim 1 is characterized in that with reciprocating type cylindrical guide powder feeder the flashboard material is the good heat-barrier material of heat-insulating property.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02270829 CN2571577Y (en) | 2002-06-05 | 2002-06-05 | Reciprocative column guide rail powder feeder for warm-pressing technology of powder metallurgy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02270829 CN2571577Y (en) | 2002-06-05 | 2002-06-05 | Reciprocative column guide rail powder feeder for warm-pressing technology of powder metallurgy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2571577Y true CN2571577Y (en) | 2003-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02270829 Expired - Fee Related CN2571577Y (en) | 2002-06-05 | 2002-06-05 | Reciprocative column guide rail powder feeder for warm-pressing technology of powder metallurgy |
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| CN (1) | CN2571577Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275334A (en) * | 2011-08-19 | 2011-12-14 | 天津市天锻压力机有限公司 | Powder feeding device for powder hydraulic machine |
| CN102585858A (en) * | 2011-01-13 | 2012-07-18 | 建德市恒明环保工程实业有限公司 | Hydraulic feeding bin with three feeding ports |
| CN107726333A (en) * | 2017-10-13 | 2018-02-23 | 柳州金螺机械股份有限公司 | Self-sealed feeding device |
-
2002
- 2002-06-05 CN CN 02270829 patent/CN2571577Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585858A (en) * | 2011-01-13 | 2012-07-18 | 建德市恒明环保工程实业有限公司 | Hydraulic feeding bin with three feeding ports |
| CN102275334A (en) * | 2011-08-19 | 2011-12-14 | 天津市天锻压力机有限公司 | Powder feeding device for powder hydraulic machine |
| CN107726333A (en) * | 2017-10-13 | 2018-02-23 | 柳州金螺机械股份有限公司 | Self-sealed feeding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |