CN2506594Y

CN2506594Y - Material feeder

Info

Publication number: CN2506594Y
Application number: CN 01225665
Authority: CN
Inventors: 董永安
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-05-24
Filing date: 2001-05-24
Publication date: 2002-08-21
Anticipated expiration: 2011-05-24

Abstract

The utility model relates to a feeder, in particular to a feeder for feeding a pressing model groove on a pressing and molding equipment of powder materials such as alloyed powder of rare earth and metals. The feeder comprises a container of powder, a stirring part and a drive mechanism of the stirring part which are positioned in the container, the bottom of the container is provided with a screen, under which a splint is arranged to prevent the powder materials in the container from scattering and leaking. The feeder is used in a feeding mechanism of the equipment for pressing and molding powder materials. The feeder has simple structure. By adding the screen on the bottom of the container, the granularity of the screened powder is even and the density of the pressed products can be evener, meanwhile, the structure of the feeding mechanism can be simplified.

Description

Feeder

The utility model relates to the equipment appurtenances to the compression molding device feed of field of powder metallurgy, is specially to the reinforced feeder of the compacting die cavity of dusty material such as rare earth alloys powder pressing forming equipment.

In field of powder metallurgy, when the fineness of dusty material such as rare earth alloys powder acquired a certain degree, its flowing power was relatively poor, and easily lump, be difficult to be loaded into equably in the die cavity of compression molding device, therefore, compression molding device all is provided with special-purpose charging mechanism.The structure of charging mechanism is different because of the difference of compression molding device structure, usually comprise feeder, drive feeder and make the feeder can be above the equipment die cavity and the feed supplement device of the passage between reciprocating pay-off, feeder holding fix and the die cavity, feed supplement in feeder between the holding fix, feeder is positioned on the passage, with regard to the feeder in the charging mechanism, its complex structure, there is defective in local structure.

The purpose of this utility model is the feeder in the charging mechanism that a kind of field of powder metallurgy compression molding device is provided.

The utility model is to adopt following measure to realize: this feeder comprises the container that can hold powder, the stirring parts that are positioned at container and stirs the driver train of parts, and the utility model is provided with screen cloth at container bottom.Like this, through screen cloth, powder can drop in the die cavity to epigranular, makes compression moulding product internal density even.

The powder that stirring parts in the container are used to stir powder, pulverize caking, the following leakage speed of quickening powder, stirring parts of the present utility model comprise along container bottom by the bar of stirring of linear drives.

The utility model is for increasing the efficient of stirring, and the stirring parts in the container comprise a plurality of bars of stirring side by side.

The utility model is provided with at the container bottom that holds powder and becomes the movable supporting plate that connects with container, this supporting plate be positioned at set screen cloth below, play powder in the support container, when preventing that container is in non-die cavity top position, the following leakage of the interior powder of container.Passage in the existing compression molding device charging mechanism had both played the directional tagging to feeder, play support effect again to dusty material in the container, because it is poorly sealed between passage and the container, container is on passage in the crank motion process, powder spills seriously, set up this supporting plate after, not only can save the passage between the feeder holding fix and die cavity in the charging mechanism of existing compression molding device, make the integral structure of charging mechanism simpler, reasonable, and can effectively avoid powder to spill phenomenon.

Feeder described in the utility model is simple in structure, owing to set up screen cloth at container bottom, following leakage powder size is even, makes the density of presswork more even.

Description of drawings:

Fig. 1 is a constructional drawing of the present utility model;

Fig. 2 is the birds-eye view of Fig. 1;

Fig. 3 is the left view of Fig. 1;

Fig. 4 is the partial enlarged drawing of Fig. 3;

Fig. 5 is the application example of the utility model on compression molding device;

Fig. 6 is the another application example of the utility model on compression molding device;

In conjunction with the accompanying drawings utility model is further described: this feeder comprises the container 1 that can hold powder, the stirring parts that are positioned at container and stirs the driver train of parts, is provided with screen cloth 9 at container bottom.Stirring parts in the container comprise side by side stir bar 8.Constitute a framework by swing arm 2, the connecting strap 10 that is fixed on the swing arm, stir bar 8 and be fixed on the connecting strap 10.The driver train that stirs parts is made of slide block 3, connecting rod 4, crank 5 and motor and retarder 7.

Be provided with in container 1 bottom in the groove that becomes the movable supporting plate 12 that connects, this supporting plate end to be embedded on the container side with container to be opened, realize with container between activity connect, the supporting plate rear end is fixed with retracing spring 11; For the supporting plate that makes container bottom is opened more reliably, be provided with at the front end of supporting plate 12 and meet and discuss 6.

Fig. 5 is a kind of application of the utility model on powder pressing forming equipment.The feed mechanism that is positioned at powder compression equipment 21 back gas-tight silos 23 comprises feeder 18 described in the utility model, the driver train of feeder---pusher 19, the feed supplement mechanism that constitutes by feed bin 15 and feed supplement device 17, passage 20 between feeder holding fix and the equipment die cavity 13, this feeder is positioned in compression molding device and leads on the passage 20 of suppressing die cavity, drive above the die cavity and reciprocating between the holding fix by the pusher 19 of hydraulic pressure, the mechanism of feed supplement therebetween automatic feeding in container, when feeder is positioned at the die cavity top, drive mechanism is stirred parts, stir parts and stir powder, powder through the screen cloth epigranular fall in the die cavity, finish the compression moulding of powder by compression molding device.Should adopt the structure that does not have supporting plate with the feeder in the example feed mechanism, therefore, still continue to use the structure of passage in the feed mechanism, container directly slides on passage, and powder spills serious in the process of sliding.

Fig. 6 has provided the application of feeder in compression molding device that container bottom is provided with supporting plate.In this application example, because container bottom is provided with supporting plate, the whole feed mechanism of equipment has saved the passage 20 in the last application example, and other parts are identical.For making the feeder operation more reliable, establish a slide bar 14 on the compression molding device, feeder slides on this slide bar.When feeder moves to the reinforced inlet of equipment by pusher 19 drivings, the edge 22 of its inlet blocks through supporting plate 6 supporting plates 12 with container bottom of meeting and discussing, thereby open supporting plate, it is reinforced that container continues to move to the die cavity top, finish reinforced after, feeder is in the return process, and supporting plate resets under the effect of spring 11.Should owing to set up supporting plate, not only save the passage in the existing feed mechanism with in the example, and effectively avoid feeder the spilling of powder in the crank motion process.

Claims

1, a kind of feeder comprises the container (1) that can hold powder, the stirring parts that are positioned at container and stirs the driver train of parts, it is characterized by: be provided with screen cloth (9) at container bottom.

2, feeder as claimed in claim 1 is characterized by: stir parts and comprise along container bottom and stirred bar (8) by linear drives.

3, as claim 1,2 described feeders, it is characterized by: the stirring parts comprise a plurality of bars of stirring side by side.

4, as claim 1,2, described feeder, it is characterized by: be provided with the supporting plate (12) that becomes movable connection with container at the container bottom that holds powder.

5, feeder as claimed in claim 4 is characterized by: in the groove that the supporting plate end is embedded on the container side to be opened, the supporting plate rear end is fixed with retracing spring (11).

6, feeder as claimed in claim 4 is characterized by: the front end at supporting plate is provided with meet and discuss (6).

7, feeder as claimed in claim 5 is characterized by: the front end at supporting plate is provided with meet and discuss (6).