CN217252832U - Powder spreading and conveying structure - Google Patents
Powder spreading and conveying structure Download PDFInfo
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- CN217252832U CN217252832U CN202221163117.8U CN202221163117U CN217252832U CN 217252832 U CN217252832 U CN 217252832U CN 202221163117 U CN202221163117 U CN 202221163117U CN 217252832 U CN217252832 U CN 217252832U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model provides a powder is spread and is sent structure relates to and send whitewashed equipment technical field, include: a powder spreading and forming mechanism and a powder supplying mechanism; through setting up raw and other materials powder storehouse at the side of spreading powder forming mechanism, powder jar component sets up the bottom in the shaping cabin, the powder in the raw and other materials powder storehouse enters into powder jar component, utilize powder jar component to drive the powder and enter into the shaping cabin, set up outside the shaping cabin with powder jar component, can not cause the obvious increase of equipment cabin size, scraper in the shaping cabin removes and drives the powder and remove, tile the powder on powder bed, effectively avoid the influence of raw and other materials powder mobility to shaping part quality, traditional powder feeding equipment who exists among the prior art has been alleviated, it requires highly to powder mobility to go up the powder mode, send the big technical problem of powder mode equipment occupation space down.
Description
Technical Field
The utility model belongs to the technical field of powder feeding equipment technique and specifically relates to a structure is spread to powder and is sent.
Background
The powder feeding equipment structure commonly used in the additive manufacturing equipment by a powder laying method at present is an upper powder feeding mode and a lower powder feeding mode. The upper powder feeding mode is a single-cylinder structure (forming cylinder), powder falls into a powder spreading vehicle from a powder bin through a pipeline, and the powder is uniformly spread on a forming substrate or a powder bed in the forming cylinder through the movement of the powder spreading vehicle; the lower powder feeding mode is a double-cylinder layout structure (a forming cylinder and a powder supply cylinder), and powder is pushed out from the powder supply cylinder through the movement of a scraper so as to be uniformly laid on a forming substrate or a powder bed in the forming cylinder.
The upper powder feeding mode has relatively high requirement on powder flowability, and the single cylinder layout structure occupies relatively small equipment space and is easy to operate in cooperation with a powder circulating system, so that the single cylinder layout structure is more applied to powder-spreading additive manufacturing equipment with large-size breadth (300 mm multiplied by 300 mm); the lower powder feeding mode has relatively low requirement on powder flowability, the double-cylinder layout structure occupies relatively large equipment space, and a powder cylinder structure needs to be arranged in an equipment cabin, so that the double-cylinder layout structure is difficult to operate in cooperation with a powder circulating system, and is more applied to powder-laying additive manufacturing equipment with medium and small-size breadth (less than or equal to 300mm multiplied by 300 mm).
However, in the conventional powder feeding equipment, the requirement of the upper powder feeding mode on the powder flowability is high, and the occupied space of the lower powder feeding mode equipment is large.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a powder is spread and is sent structure to alleviate the traditional powder feeding equipment that exists among the prior art, go up the powder feeding mode and have high to powder mobility requirement, lower powder feeding mode equipment occupation space big technical problem.
In a first aspect, the utility model provides a structure is spread to powder, include: a powder paving and forming mechanism and a powder supplying mechanism;
the powder paving and forming mechanism is provided with a forming cabin, a scraper and a powder paving bed, wherein the scraper is positioned above the powder paving bed, and the scraper is configured to be capable of moving in the forming cabin so as to enable powder in the forming cabin to be uniformly paved on the powder paving bed;
confession powder mechanism includes raw and other materials powder storehouse and the powder jar component that communicates each other, raw and other materials powder storehouse is located spread powder forming mechanism's top side, powder jar component is located the bottom in shaping cabin, powder jar component configuration is to be carried the powder extremely in the shaping cabin.
In an alternative embodiment of the method of the present invention,
the powder paving and forming mechanism comprises a powder paving device and a powder paving track;
spread the powder track set up in the shaping cabin, spread the one end of powder ware with spread powder track sliding connection, spread the other end of powder ware with the scraper is connected, spread the powder ware can along spread the powder track and remove, so that the scraper drives powder in the shaping cabin removes.
In an alternative embodiment of the method of the present invention,
the powder paving and forming mechanism also comprises a forming cylinder body and a forming cylinder piston;
the shaping cylinder body is located the below in shaping cabin, shaping cylinder piston set up in the shaping cylinder body, shaping cylinder piston configuration is configured to can drive spread the powder bed and be in move in the shaping cylinder body.
In an alternative embodiment of the method of the invention,
the powder laying forming mechanism also comprises a forming substrate;
one side of the forming substrate is connected with the forming cylinder piston, one side of the forming substrate, which is far away from the forming cylinder piston, is connected with the powder paving bed, and the powder paving bed forms a forming part.
In an alternative embodiment of the method of the invention,
the powder cylinder component comprises a powder cylinder main body and a powder cylinder piston;
the powder jar main part with the shaping cabin intercommunication, powder jar piston set up in the powder jar main part, the powder jar main part with raw and other materials powder storehouse intercommunication, powder jar piston configuration is configured to can drive the powder storehouse in the powder jar main part moves to in the shaping cabin.
In an alternative embodiment of the method of the present invention,
the raw material powder bin is rotatably connected with a powder falling control shaft, the powder falling control shaft is provided with a notch, and a discharging channel is formed between the notch and the inner wall of the raw material powder bin when the raw material powder bin is in a discharging state.
In an alternative embodiment of the method of the present invention,
the powder spreading and conveying structure further comprises an overflow recycling mechanism;
the overflow recycling mechanism is connected with the powder paving and forming mechanism, and the overflow recycling mechanism is used for collecting redundant powder in the forming cabin after the powder paving.
In an alternative embodiment of the method of the present invention,
the overflow recovery mechanism comprises a powder overflow bin and an overflow pipeline;
one end of the overflow pipeline is connected with the powder overflow bin, the other end of the overflow pipeline is connected with the forming cabin, and powder in the forming cabin enters the powder overflow bin through the overflow pipeline.
In an alternative embodiment of the method of the invention,
the powder spreading and forming mechanism is provided with a feeding hole and a discharging hole;
the feed inlet with supply powder mechanism intercommunication, the discharge gate with overflow pipe intercommunication, the feed inlet with the discharge gate sets up relatively spread orbital both sides department of powder.
In an alternative embodiment of the method of the present invention,
the powder spreading structure further comprises a high-energy beam device;
the high-energy beam device is connected with the powder laying forming mechanism and is configured to melt a powder layer on the powder laying bed.
The utility model provides a structure is spread to powder, include: a powder spreading and forming mechanism and a powder supplying mechanism; through setting up raw and other materials powder storehouse at the side of spreading powder forming mechanism, powder jar component sets up the bottom in the shaping cabin, the powder in the raw and other materials powder storehouse enters into powder jar component, utilize powder jar component to drive the powder and enter into the shaping cabin, set up outside the shaping cabin with powder jar component, can not cause the obvious increase of equipment cabin size, scraper in the shaping cabin removes and drives the powder and remove, tile the powder on powder bed, effectively avoid the influence of raw and other materials powder mobility to shaping part quality, traditional powder feeding equipment who exists among the prior art has been alleviated, it requires highly to powder mobility to go up the powder mode, send the big technical problem of powder mode equipment occupation space down.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an overall schematic structural diagram of a powder laying and conveying structure provided by an embodiment of the present invention.
Icon: 100-a powder spreading and forming mechanism; 110-a shaping chamber; 120-a scraper; 130-spreading a powder bed; 140-powder spreader; 150-powder paving track; 160-forming a cylinder body; 170-forming a cylinder piston; 180-molding a substrate; 190-forming the part; 200-a powder supply mechanism; 210-raw material powder bin; 211-a powder falling control shaft; 220-a powder jar member; 221-powder cylinder body; 222-powder cylinder piston; 300-an overflow recovery mechanism; 310-powder overflow bin; 320-an overflow conduit; 400-high energy beam device.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The traditional powder feeding mode has high requirement on the flowability of raw material powder, and if the flowability of the powder is general or poor, the powder cannot fall smoothly due to the accumulation of the powder in a powder paving vehicle, the powder is difficult to uniformly lay on a forming substrate 180 or a powder bed, the problems of powder shortage, powder bouncing, agglomeration and the like of the powder bed are easily caused, the actual quality effect of forming of additive manufacturing equipment by a powder paving method is influenced, and further, the quality defect of the inside of a formed part 190 is caused. The powder spreader 140 configured in the upper powder feeding manner has a complicated structure, and is inconvenient in fault handling, maintenance and the like.
The powder cylinder of the lower powder feeding mode needs to be directly arranged in the equipment cabin, so that continuous and uninterrupted additive manufacturing and forming can be realized only by adding sufficient raw material powder at one time. Therefore, the powder preparation amount of the lower powder feeding mode is far more than that of the upper powder feeding mode, and the manufacturing cost control of large-size parts is not facilitated. The double-cylinder structure of the lower powder feeding mode needs a larger equipment cabin than the upper powder feeding mode, and the overlarge equipment cabin can also bring adverse effects on the equipment in the aspects of equipment floor area, cabin sealing, control of circulating wind field in the cabin, consumption of inert protective gas and the like.
In view of this, as shown in fig. 1, the present embodiment provides a powder spreading structure, including: a powder laying and forming mechanism 100 and a powder supply mechanism 200; the powder laying and forming mechanism 100 is provided with a forming chamber 110, a scraper 120 and a powder laying bed 130, wherein the scraper 120 is positioned above the powder laying bed 130, and the scraper 120 is configured to be capable of moving in the forming chamber 110 so as to uniformly lay the powder in the forming chamber 110 on the powder laying bed 130; the powder supply mechanism 200 includes a raw material powder bin 210 and a powder cylinder member 220 which are communicated with each other, the raw material powder bin 210 is located at the top side of the powder laying forming mechanism 100, the powder cylinder member 220 is located at the bottom of the forming chamber 110, and the powder cylinder member 220 is configured to be able to deliver powder into the forming chamber 110.
The powder spreading structure provided by the embodiment includes: a powder laying and forming mechanism 100 and a powder supply mechanism 200; through setting up raw and other materials powder storehouse 210 in the side of shop's powder forming mechanism 100, powder jar component 220 sets up the bottom at shaping cabin 110, the powder in raw and other materials powder storehouse 210 enters into powder jar component 220, utilize powder jar component 220 to drive the powder and enter into shaping cabin 110, set up powder jar component 220 outside shaping cabin 110, can not cause the obvious increase of equipment cabin size, scraper 120 in shaping cabin 110 moves and drives the powder and remove, tile the powder on shop's powder bed 130, effectively avoid raw and other materials powder mobility to the influence of shaping part 190 quality, traditional powder feeding equipment that has alleviated existence among the prior art, the powder mobility requirement is high on powder for the last powder feeding mode, the powder feeding mode equipment occupation space is big technical problem down.
Regarding the structure and shape of the powder placement forming mechanism 100, specifically:
the powder spreading and forming mechanism 100 comprises a forming chamber 110, a scraper 120, a powder spreading bed 130, a powder spreader 140, a powder spreading rail 150, a forming cylinder 160, a forming cylinder piston 170 and a forming substrate 180, wherein a cavity above the powder spreading and forming mechanism 100 is the forming chamber 110, the forming cylinder 160 is arranged below the powder spreading and forming mechanism 100, two ends of the powder spreading rail 150 are connected with the inner wall forming the forming chamber 110, the powder spreading rail 150 is fixed in the forming chamber 110, the powder spreader 140 is slidably mounted on the powder spreading rail 150, so that the powder spreader 140 can slide along the powder spreading rail 150, the scraper 120 is mounted on the powder spreader 140, moves along the powder spreading rail 150 along with the powder spreader 140, and powder in the forming chamber 110 is uniformly spread on the powder spreading bed 130 below the scraper 120 by the scraper 120.
The molding cylinder 160 is located below the molding chamber 110, the molding cylinder piston 170 is installed in the molding cylinder 160 and moves up and down along the molding cylinder 160, the molding base plate 180 is installed at the end of the molding cylinder piston 170, the powder spreading bed 130 is installed on the molding base plate 180, and the molded part 190 is molded on the powder spreading bed 130 and the molding base plate 180.
Regarding the structure and shape of the powder supply mechanism 200, specifically:
the powder supply mechanism 200 comprises a raw material powder bin 210 and a powder cylinder member 220, the raw material powder bin 210 is installed on the side edge of the powder laying forming mechanism 100, the powder cylinder member 220 is installed below the powder laying forming mechanism 100, the powder cylinder member 220 comprises a powder cylinder main body 221 and a powder cylinder piston 222, the powder cylinder piston 222 is installed in the powder cylinder main body 221 and can move up and down in the powder cylinder main body 221, powder in the raw material powder bin 210 enters the powder cylinder main body 221, the powder is ejected out by the powder cylinder piston 222, and then the powder can be conveyed into the forming cabin 110.
The powder falling control shaft 211 is installed in the raw material powder bin 210, the powder falling control shaft 211 can rotate along the axis direction of the powder falling control shaft 211, a notch is formed in the powder falling control shaft 211, when the powder falling control shaft 211 rotates to the position where a discharging channel can be formed between the notch and the inner wall of the raw material powder bin 210, the powder falling control shaft is in a discharging state, and powder in the raw material powder bin 210 enters the powder cylinder main body 221.
Regarding the structure and shape of the overflow recovery mechanism 300, specifically:
the overflow recycling mechanism 300 includes a powder overflow bin 310 and an overflow pipe 320, the excessive powder in the molding chamber 110 enters the powder overflow bin 310 through the overflow pipe 320, and the feed inlet and the discharge outlet in the molding chamber 110 are respectively arranged at two end positions of the powder laying track 150, when the scraper 120 lays the powder, the scraper 120 moves along the direction of the feed inlet towards the discharge outlet, that is, the excessive powder can fall into the overflow pipe 320 from the discharge outlet.
The powder spreading structure operates as follows: raw material powder is loaded into the raw material powder bin 210, the powder falling amount is controlled through the powder falling control shaft 211, the powder enters the powder cylinder main body 221, the powder spreader 140 carrying scraper 120 moves to the right side of the powder cylinder main body 221 along the powder spreading rail 150, the powder cylinder piston 222 pushes the raw material powder to be lifted to the platform position of the forming cabin 110, the forming cylinder piston 170 in the forming cylinder body 160 drives the forming substrate 180 to descend by a set layer thickness height, the powder spreader 140 carrying scraper 120 moves to the left side of the forming cylinder along the powder spreading rail 150 to complete uniform laying of the raw material powder on a powder bed, and redundant raw material powder enters the powder overflow bin 310 along the overflow pipeline 320. The high energy beam device 400 performs the current layer melting scan on the powder bed to complete the current layer molding of the molded part 190. The running process is then repeated until the formed part 190 completes the additive manufacturing process. In this process, the excess raw material powder may be collected in the powder overflow bin 310 and refilled into the raw material powder bin 210 by a manual or powder circulation system, thereby achieving continuous and uninterrupted molding of the additive manufacturing process.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A powder spreading structure, comprising: a powder laying and forming mechanism (100) and a powder supply mechanism (200);
the powder spreading and forming mechanism (100) is provided with a forming cabin (110), a scraper (120) and a powder spreading bed (130), wherein the scraper (120) is positioned above the powder spreading bed (130), and the scraper (120) is configured to be capable of moving in the forming cabin (110) so that powder in the forming cabin (110) is uniformly spread on the powder spreading bed (130);
the powder supply mechanism (200) comprises a raw material powder bin (210) and a powder cylinder component (220) which are communicated with each other, the raw material powder bin (210) is located on the side edge of the top of the powder paving and forming mechanism (100), the powder cylinder component (220) is located at the bottom of the forming cabin (110), and the powder cylinder component (220) is configured to be capable of conveying powder into the forming cabin (110).
2. Powder spreading structure according to claim 1,
the powder paving and forming mechanism (100) comprises a powder paving device (140) and a powder paving track (150);
shop powder track (150) set up in shaping cabin (110), shop powder ware (140) one end with shop powder track (150) sliding connection, shop powder ware (140) the other end with scraper (120) are connected, shop powder ware (140) can be followed shop powder track (150) remove, so that scraper (120) drive powder in the shaping cabin (110) removes.
3. Powder spreading structure according to claim 2,
the powder laying and forming mechanism (100) further comprises a forming cylinder body (160) and a forming cylinder piston (170);
the forming cylinder body (160) is located below the forming cabin (110), the forming cylinder piston (170) is arranged in the forming cylinder body (160), and the forming cylinder piston (170) is configured to be capable of driving the powder spreading bed (130) to move in the forming cylinder body (160).
4. Powder spreading structure according to claim 3,
the powder laying and forming mechanism (100) further comprises a forming substrate (180);
one side of the forming substrate (180) is connected with the forming cylinder piston (170), one side of the forming substrate (180) far away from the forming cylinder piston (170) is connected with the powder spreading bed (130), and the powder spreading bed (130) forms a forming part (190).
5. Powder spreading structure according to claim 3,
the powder cylinder member (220) includes a powder cylinder main body (221) and a powder cylinder piston (222);
the powder cylinder main body (221) is communicated with the forming cabin (110), the powder cylinder piston (222) is arranged in the powder cylinder main body (221), the powder cylinder main body (221) is communicated with the raw material powder bin (210), and the powder cylinder piston (222) is configured to be capable of driving the powder bin in the powder cylinder main body (221) to move into the forming cabin (110).
6. Powder spreading structure according to claim 5,
the raw material powder bin (210) is rotatably connected with a powder falling control shaft (211), the powder falling control shaft (211) is provided with a notch, and when the powder falling control shaft is in a discharging state, a discharging channel is formed between the notch and the inner wall of the raw material powder bin (210).
7. Powder spreading structure according to claim 2,
the powder spreading structure further comprises an overflow recovery mechanism (300);
mechanism (300) is retrieved in the overflow with shop powder forming mechanism (100) is connected, overflow retrieve mechanism (300) be used for collecting shop after the powder unnecessary powder in shaping cabin (110).
8. Powder spreading structure according to claim 7,
the overflow recovery mechanism (300) comprises a powder overflow bin (310) and an overflow pipeline (320);
one end of the overflow pipeline (320) is connected with the powder overflow bin (310), the other end of the overflow pipeline (320) is connected with the molding cabin (110), and powder in the molding cabin (110) enters the powder overflow bin (310) through the overflow pipeline (320).
9. Powder spreading structure according to claim 8,
the powder paving and forming mechanism (100) is provided with a feeding hole and a discharging hole;
the feed inlet with supply powder mechanism (200) intercommunication, the discharge gate with overflow pipe (320) intercommunication, the feed inlet with the discharge gate sets up relatively spread the both sides end department of powder track (150).
10. Powder spreading structure according to claim 1,
the powder spreading structure further comprises a high energy beam device (400);
the high-energy beam device (400) is connected with the powder laying forming mechanism (100), and the high-energy beam device (400) is configured to be capable of melting the powder layer on the powder laying bed (130).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221163117.8U CN217252832U (en) | 2022-05-16 | 2022-05-16 | Powder spreading and conveying structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221163117.8U CN217252832U (en) | 2022-05-16 | 2022-05-16 | Powder spreading and conveying structure |
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| Publication Number | Publication Date |
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| CN217252832U true CN217252832U (en) | 2022-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221163117.8U Active CN217252832U (en) | 2022-05-16 | 2022-05-16 | Powder spreading and conveying structure |
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| CN (1) | CN217252832U (en) |
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- 2022-05-16 CN CN202221163117.8U patent/CN217252832U/en active Active
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