CN204644446U - A kind of powder feeder - Google Patents
A kind of powder feeder Download PDFInfo
- Publication number
- CN204644446U CN204644446U CN201520138641.3U CN201520138641U CN204644446U CN 204644446 U CN204644446 U CN 204644446U CN 201520138641 U CN201520138641 U CN 201520138641U CN 204644446 U CN204644446 U CN 204644446U
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- Prior art keywords
- powder
- cylindrical shell
- suction nozzle
- rotating disk
- powder feeder
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Abstract
The utility model provides a kind of powder feeder of plasma spray, comprise: casing, described casing is provided with a powder cylindrical shell, in described powder cylindrical shell, central authorities are provided with a balancing point, and the bottom of this powder cylindrical shell have let slip a remark and described in let slip a remark and be positioned at described casing, be provided with rotating disk and suction nozzle in described casing, described suction nozzle is positioned on described rotating disk; Described rotating disk top is provided with groove around centre rotational axis, lets slip a remark and suction nozzle described in described groove in the vertical direction aligning.Simple, the compact handling ease of the utility model structure, volume are little, substantially reduce the overall volume of powder feeder, and powder feeding is simultaneously continuous, even, improves the homogeneity of cladding layer thickness.
Description
Technical field
The utility model relates to plasma spray field, is specifically related to a kind of powder feeder.
Background technology
Argon plasma arc is utilized to make thermal source during plasma spray, adopt Powdered alloy to make stopping composition and powdered alloy is piled a kind of novel surface processing technology being welded in base metal surface, the property that it can make cheap common material surface acquisition high alloy material have.Because plasma transferred arc temperature is high, heat is concentrated, the effect workpiece time is short, therefore the crucible zone that workpiece is formed is shallow, base material alloy layer dilution ratio is low, and matrix heat affected zone is little, and spray-welding coating is typical metallurgical binding tissue, bonding strength high, plasma spray has become element of installation surface abrasionproof, anticorrosion etc. the important processing means of one.
Powdered alloy is supplied continuously by powder feeder needed amount, by sending a point air-flow (also using argon gas) to send into welding gun, and is blown in electric arc.The powder feeding equipment being specifically applied to this technology at present has dead-weight powder feeder, scraper-type powder feeder, screw powder feeder kapillary powder feeder etc.These powder feeders have respective feature above, are suitable for different situations.Scraper-type powder feeder because of cheap, control the advantages such as simple and powder amount variable range is wide and be widely used.But existing scraper-type powder feeder, when carrying fine powder (-200 ~+500 order), due to agglomerate and the viscous of fine powder, and causes powder feeding discontinuous, powder sending quantity is uneven, the cladding layer obtained is in uneven thickness, and surface quality is poor, finally causes shaping failure.
Utility model content
In order to tackle problems of the prior art, the utility model provides the simple powder feeder of a kind of structure, comprising:
Casing, described casing is provided with a powder cylindrical shell, and described powder cylindrical shell has a balancing point, and the bottom of this powder cylindrical shell has and lets slip a remark and be positioned at described casing, and be provided with rotating disk and suction nozzle in described casing, described suction nozzle is positioned on described rotating disk;
Described rotating disk top is provided with groove around described centre rotational axis, and described groove in the vertical direction aims at leting slip a remark and suction nozzle of described powder cylindrical shell.
Above-mentioned powder feeder, wherein, the top of described balancing point is fixedly installed in the top inner wall in described powder cylindrical shell.
Above-mentioned powder feeder, wherein, described powder cylindrical shell comprises balance tracheae and variable valve.
Above-mentioned powder feeder, wherein, described groove comprises large groove and is arranged on the minor groove of described large channel bottom.
Above-mentioned powder feeder, wherein, described centre rotational axis is connected with the rotor of a step-down gear.
Above-mentioned powder feeder, wherein, described step-down gear is also connected to a step-by-step motor.
Above-mentioned powder feeder, wherein, described powder cylindrical shell is funnel-form cylindrical shell wide at the top and narrow at the bottom.
Above-mentioned powder feeder, wherein, described suction nozzle comprises axle, spring, interior mouth and conduit;
And described suction nozzle end is provided with a ball.
The utility model by arranging a balancing point in powder cylindrical shell, utilize this balancing point the powder in powder cylindrical shell evenly can be broken up, and then by the leting slip a remark and fall on rotating disk groove of powder cylinder body bottom, powder is delivered to below suction nozzle by the rotation via rotating disk, utilizes suction nozzle by the powder sucking-off after breaing up to laser processing zone; Further, owing to arranging the groove of pattern at rotating disk top to limit the rotational freedom of mouth in suction nozzle, this can improve the suction nozzle more precisely comprehensive powder drawn on rotating disk; Simultaneously simple, the compact handling ease of the utility model structure, volume are little, substantially reduce the overall volume of powder feeder.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, the utility model and feature, profile and advantage will become more obvious.Mark identical in whole accompanying drawing indicates identical part.Deliberately proportionally do not draw accompanying drawing, focus on purport of the present utility model is shown.
A kind of powder feeder schematic diagram that Fig. 1 provides for the utility model;
The rotating disk vertical view of a kind of powder feeder that Fig. 2 provides for the utility model;
The rotating disk side-view of a kind of powder feeder that Fig. 3 provides for the utility model.
Embodiment
In the following description, give a large amount of concrete details to provide to understand more thoroughly the utility model.But, it is obvious to the skilled person that the utility model can be implemented without the need to these details one or more.In other example, in order to avoid obscuring with the utility model, technical characteristics more well known in the art are not described.
In order to thoroughly understand the utility model, by proposing detailed step and detailed structure in following description, to explain the technical solution of the utility model.Preferred embodiment of the present utility model is described in detail as follows, but except these are described in detail, the utility model can also have other embodiments.
With reference to shown in Fig. 1, the utility model provides a kind of powder feeder, comprising: casing 1, casing is provided with a powder cylindrical shell 2, has a balancing point 3 at powder cylindrical shell 2, and optionally, one end of balancing point 3 is fixedly installed on the top inner wall center in powder cylindrical shell 2; The bottom of this powder cylindrical shell 2 has and to let slip a remark and this is let slip a remark and is positioned at casing 1 simultaneously, and be provided with rotating disk 8 and suction nozzle 4 in casing, suction nozzle 4 is positioned on rotating disk 8; Rotating disk 8 top is provided with the groove of ring-type around the turning axle at its center, and groove in the vertical direction aims at leting slip a remark, for laying the powder fallen from leting slip a remark of suction nozzle 4 and powder cylindrical shell 2.When carrying out work, balancing point 3 in powder cylindrical shell 2 can swing at powder cylindrical shell 2, and then the powder held in powder cylindrical shell 2 broken up and falls to by leting slip a remark in the groove on rotating disk 8, afterwards via the rotation of rotating disk 8, powder after breaing up is delivered to suction nozzle 4 place, powder along with conduit flows out casing continuously, evenly, and delivers to laser processing zone under the effect of vacuum slot 4.First the utility model utilizes the balancing point in powder cylindrical shell 2 to be broken up by powder, and is transported to suction nozzle position by rotating disk, realizes by powder delivery to utilizing region, and structure is simple, convenient and practical.
Need simultaneously illustrate; in powder cylindrical shell 2, arrange a balancing point is only a kind of preferred embodiment; in some other embodiment; in powder cylindrical shell 2, arrange other devices with agitating function also can play identical technique effect, this can't impact protection domain of the present utility model.
In the utility model one optional embodiment, powder cylindrical shell 2 also comprises and is provided with balance tracheae (not indicating in figure) and variable valve (not indicating in figure), for regulating the pressure in powder cylindrical shell 2, avoids causing industrial accident.
In the utility model one optional embodiment, with reference to shown in Fig. 2 and Fig. 3, above-mentioned groove comprises large groove 10a and is arranged on the minor groove 10b bottom large groove 10a, groove distribution simultaneously can refer to shown in Fig. 2, by this graphic designs, by adjusting the position of suction nozzle and highly drawing the powder at different positions place, improve absorption efficiency.
In the utility model one optional embodiment, the center of rotating disk 4 is connected with the rotor 5 of a step-down gear 6.
In the utility model one optional embodiment, step-down gear 6 is also connected to a step-by-step motor 7.Powder feeder provided by the invention, when carrying fine powder, can realize uniform and stable conveying, when making laser melting coating fine powder, obtain even curface, in actual applications, and our transfer rate by regulating the rotating speed of step-by-step motor 7 to regulate powder.
In the utility model one optional embodiment, powder cylindrical shell 2 is funnel-form cylindrical shell wide at the top and narrow at the bottom, and this structure metal-powder be conducive in powder cylindrical shell 2 is concentrated and evenly fallen in the groove of rotating disk 8 upper surface slowly through leting slip a remark.
In the utility model one optional embodiment, suction nozzle comprises axle, spring 9, interior mouth and conduit, and suction nozzle end is provided with a ball 10.Utilize spring 9 that suction nozzle 4 is pressed in the top of rotating disk 8 downwards, the ball 10 simultaneously arranged bottom suction nozzle, the contact friction of alternative face is carried out with point cantact friction, avoid due to face contact friction and cause suction nozzle lower surface rapid wear thus cause powder outlet quantity to change, also ensure that the purity of powder simultaneously.Should be noted that, should ensure that when dial rotation interior mouth is all the time perpendicular to rotating disk, but owing to there is the impact of frictional force, so adopt axle to limit the movement at different directions and the rotation of interior mouth, and namely it extend into the rotational freedom that rotating disk inner structure shape limits interior mouth by interior gonys portion.
In sum, because the utility model have employed as above technical scheme, by arranging a balancing point in powder cylindrical shell, utilize this balancing point the powder in powder cylindrical shell evenly can be broken up, and then by the leting slip a remark and fall on rotating disk groove of powder cylinder body bottom, powder is delivered to below suction nozzle by the rotation via rotating disk, utilizes suction nozzle by the powder sucking-off after breaing up to laser processing zone; Further, the utility model is owing to being provided with the groove of pattern to limit the rotational freedom of mouth in suction nozzle at rotating disk top, this can improve the suction nozzle more precisely comprehensive powder drawn on rotating disk.Simple, the compact handling ease of the utility model structure, volume are little, substantially reduce the overall volume of powder feeder.
Above preferred embodiment of the present utility model is described.It is to be appreciated that the utility model is not limited to above-mentioned particular implementation, the equipment wherein do not described in detail to the greatest extent and structure are construed as to be implemented with the usual manner in this area; Any those of ordinary skill in the art, do not departing under technical solutions of the utility model ambit, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solutions of the utility model, or being revised as the Equivalent embodiments of equivalent variations, this does not affect flesh and blood of the present utility model.Therefore, every content not departing from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solutions of the utility model protection.
Claims (8)
1. a powder feeder, is characterized in that, comprising:
Casing, described casing is provided with a powder cylindrical shell, and described powder cylindrical shell has a balancing point, and the bottom of this powder cylindrical shell have let slip a remark and described in let slip a remark and be positioned at described casing, be provided with rotating disk and suction nozzle in described casing, described suction nozzle is positioned on described rotating disk;
Described rotating disk top is provided with groove around centre rotational axis, lets slip a remark and suction nozzle described in described groove in the vertical direction aligning.
2. powder feeder as claimed in claim 1, it is characterized in that, the top of described balancing point is fixedly installed in the top inner wall in described powder cylindrical shell.
3. powder feeder as claimed in claim 1, is characterized in that, described powder cylindrical shell also includes balance tracheae and variable valve.
4. powder feeder as claimed in claim 1, is characterized in that, described groove comprises large groove and is arranged on the minor groove of described large channel bottom.
5. powder feeder as claimed in claim 1, it is characterized in that, described centre rotational axis is connected with the rotor of a step-down gear.
6. powder feeder as claimed in claim 5, it is characterized in that, described step-down gear is also connected to a step-by-step motor.
7. powder feeder as claimed in claim 1, it is characterized in that, described powder cylindrical shell is funnel-form cylindrical shell wide at the top and narrow at the bottom.
8. the powder feeder as described in as any in claim 1 to 7 one, is characterized in that, described suction nozzle comprises axle, spring, interior mouth and conduit;
And described suction nozzle end is provided with a ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520138641.3U CN204644446U (en) | 2015-03-11 | 2015-03-11 | A kind of powder feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520138641.3U CN204644446U (en) | 2015-03-11 | 2015-03-11 | A kind of powder feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204644446U true CN204644446U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520138641.3U Expired - Fee Related CN204644446U (en) | 2015-03-11 | 2015-03-11 | A kind of powder feeder |
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| Country | Link |
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| CN (1) | CN204644446U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112226765A (en) * | 2020-11-09 | 2021-01-15 | 宁波中物力拓超微材料有限公司 | Control method for laser cladding powder feeding |
-
2015
- 2015-03-11 CN CN201520138641.3U patent/CN204644446U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112226765A (en) * | 2020-11-09 | 2021-01-15 | 宁波中物力拓超微材料有限公司 | Control method for laser cladding powder feeding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20170311 |
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| CF01 | Termination of patent right due to non-payment of annual fee |