阅读说明：本技术 一种增材制造设备用清粉装置 (Powder cleaning device for additive manufacturing equipment ) 是由 严生辉 薛蕊莉 张龙江 李嘉豪 杨小康 于 2021-08-25 设计创作，主要内容包括：本发明属于铸造设备技术领域,特别涉一种增材制造设备用清粉装置；本发明提供的增材制造设备用清粉装置包括清粉装置主体、支撑组件、清粉平台、清粉组件；支撑组件设置在清粉装置主体内部；清粉平台上设置若干通孔；清粉平台设置在支撑组件上；清粉组件包括第一清粉机构、第二清粉机构；第一清粉机构设置在清粉平台的上方,第二清粉机构设置在清粉平台的下方；将置有待清粉产品的清粉平台输送至清粉设备中,依次通过自然流粉、第一清粉机构清粉、第二清粉机构清粉及振动清粉,这样由机械化代替人工操作,显著地减少了工人的劳动强度,改善工作环境；提高了生产效率,降低产品清粉破损率,有效提高产品生产质量。(The invention belongs to the technical field of casting equipment, and particularly relates to a powder cleaning device for additive manufacturing equipment; the invention provides a powder cleaning device for additive manufacturing equipment, which comprises a powder cleaning device main body, a supporting assembly, a powder cleaning platform and a powder cleaning assembly, wherein the powder cleaning device main body is provided with a support assembly; the supporting component is arranged in the powder cleaning device main body; the powder cleaning platform is provided with a plurality of through holes; the powder cleaning platform is arranged on the supporting component; the powder cleaning component comprises a first powder cleaning mechanism and a second powder cleaning mechanism; the first powder cleaning mechanism is arranged above the powder cleaning platform, and the second powder cleaning mechanism is arranged below the powder cleaning platform; conveying the powder cleaning platform with the product to be cleaned into powder cleaning equipment, and sequentially performing natural powder flow, powder cleaning by a first powder cleaning mechanism, powder cleaning by a second powder cleaning mechanism and powder cleaning by vibration, so that manual operation is replaced by mechanization, the labor intensity of workers is obviously reduced, and the working environment is improved; the production efficiency is improved, the powder cleaning and damage rate of the product is reduced, and the production quality of the product is effectively improved.)

1. A powder cleaning device for additive manufacturing equipment is characterized by comprising a powder cleaning device main body, a supporting assembly, a powder cleaning platform and a powder cleaning assembly;

the supporting component is arranged inside the powder cleaning device main body;

the powder cleaning platform is provided with a plurality of through holes;

the powder cleaning platform is arranged on the supporting component;

the powder cleaning assembly comprises a first powder cleaning mechanism and a second powder cleaning mechanism; the first powder cleaning mechanism is arranged above the powder cleaning platform, and the second powder cleaning mechanism is arranged below the powder cleaning platform.

2. The additive manufacturing apparatus dust removing device according to claim 1,

the support assembly includes: the device comprises a support frame, a first support table and a second support table; the first supporting platform and the second supporting platform are respectively connected with the supporting frame, and the first supporting platform is arranged above the second supporting platform;

the first powder cleaning mechanism is arranged above the first supporting platform; the second powder cleaning mechanism is arranged between the first supporting table and the second supporting table;

the powder cleaning platform is embedded in the first supporting platform.

3. The additive manufacturing apparatus powder cleaning device according to claim 2, wherein the powder cleaning device further comprises a vibration component, and the vibration component comprises a vibration motor and an elastic member; a plurality of elastic pieces are arranged between the first supporting platform and the second supporting platform, and a vibration motor is arranged on the first supporting platform and/or the second supporting platform.

4. The additive manufacturing apparatus according to claim 3, wherein the powder cleaning apparatus further comprises a recovery apparatus provided below the second support table for collecting powder; and a grid plate structure is arranged in the position area of the second support platform opposite to the powder cleaning platform.

5. The additive manufacturing apparatus powder cleaning device according to claim 1, wherein the first powder cleaning mechanism includes a lifting mechanism, a powder cleaning cover; the lifting mechanism is connected with the powder cleaning cover, and a cover opening of the powder cleaning cover is provided with a plurality of first blowing nozzles; the first blowing nozzle faces the powder cleaning platform.

6. The additive manufacturing equipment powder cleaning device according to claim 2, wherein the second powder cleaning mechanism comprises a second powder cleaning mechanism frame and a second blowing nozzle, the second blowing nozzle is arranged on the second powder cleaning mechanism frame, and the second blowing nozzle faces the powder cleaning platform.

7. The additive manufacturing apparatus powder cleaning device according to claim 6, wherein the second powder cleaning mechanism further comprises a moving mechanism connected to the second powder cleaning mechanism frame for adjusting a position of the second powder cleaning mechanism frame relative to the powder cleaning platform.

8. The additive manufacturing apparatus powder cleaning device according to any one of claims 2 to 7, wherein the powder cleaning platform is fixedly connected with the first supporting table in an embedded manner.

9. The additive manufacturing apparatus powder cleaning device according to any one of claims 2 to 7, wherein the powder cleaning platform is detachably connected to the first support table in an embedded manner.

10. The additive manufacturing apparatus powder cleaning device according to claim 9, further comprising a rotating mechanism;

the powder cleaning platform comprises a first bearing plate and a second bearing plate, and the first bearing plate is movably connected with the second bearing plate; the first bearing plate and the second bearing plate are both provided with a plurality of through holes;

the first bearing plate is movably embedded in the first supporting table and used for placing a product to be cleaned;

the rotating mechanism is arranged on the second support platform; one end, far away from the second supporting table, of the rotating mechanism is movably connected with the second bearing plate, and the rotating mechanism is used for driving the second bearing plate to rotate so that the through hole of the first bearing plate is opposite to the through hole of the second bearing plate.

Technical Field

The invention belongs to the technical field of casting equipment, and particularly relates to a powder cleaning device for additive manufacturing equipment.

Background

In recent years, 3D printing technology has been popularized and applied to various industries, and 3D printing technology is mainly used for one-step forming of parts with complex structures at present, is flexible in production process, and is basically not limited by part structures and tool fixtures. At present, the 3D printing of the sand mold is industrially applied, and the production efficiency is high compared with that of the traditional industry, and the labor intensity of workers is low.

The cleaning of medium and large sand mold products is mainly carried out by jacking a working box, a worker uses a dust collector to suck uncured powder, then the medium and large sand mold products are lifted by a grabbing and lifting device, and finally floating powder on the surface is cleaned by compressed air. The process uses more tools, the labor intensity of workers is higher, and the sand removing efficiency is relatively lower. For small and medium-sized products, sand removal is more complex, the products can be taken out only by one layer manually, then sand removal is carried out one by one, the sand removal efficiency is extremely low, the products are damaged by carelessness when the products are taken out manually, especially, the powder removal of the small-sized products is extremely difficult, the production efficiency is extremely low, and the problems exist in batch production. Therefore, how to improve the sand removal efficiency of the printing product, reduce the labor intensity of workers and realize the mass and high-efficiency production of the product becomes a technical problem to be solved urgently in the industry at present.

Disclosure of Invention

The invention provides a powder cleaning device for additive manufacturing equipment and a powder cleaning method thereof, and solves the problems of low powder cleaning efficiency, high labor intensity of workers, high breakage rate of middle and small-sized products, complex powder cleaning process, high dust pollution and the like of the existing 3D printing products.

A powder cleaning device for additive manufacturing equipment comprises a powder cleaning device main body, a supporting assembly, a powder cleaning platform and a powder cleaning assembly;

the supporting component is arranged inside the powder cleaning device main body;

the powder cleaning platform is used for placing a product to be cleaned, and is provided with a plurality of through holes for forming a powder flowing channel so that uncured powder can naturally flow out;

the powder cleaning platform is arranged on the supporting component;

the powder cleaning assembly comprises a first powder cleaning mechanism and a second powder cleaning mechanism; the first powder cleaning mechanism is arranged above the powder cleaning platform, and the second powder cleaning mechanism is arranged below the powder cleaning platform; the powder cleaning assembly is used for cleaning powder on the product to be cleaned; wherein first clear powder mechanism is used for clearing up the powder of product upper surface, and the clear powder mechanism of second is used for clearing up the powder of the surface relative with clear powder platform of product.

In order to better implement the invention, the support assembly comprises: the device comprises a first supporting table, a second supporting table and a supporting frame; the first supporting platform and the second supporting platform are respectively connected with the supporting frame, and the first supporting platform is arranged above the second supporting platform; the first powder cleaning mechanism is arranged above the first supporting platform; the second powder cleaning mechanism is arranged between the first supporting table and the second supporting table; the powder cleaning platform is embedded in the first supporting platform.

In order to better realize the invention, the powder cleaning device also comprises a vibration assembly, wherein the vibration assembly comprises a vibration motor and an elastic piece; a plurality of elastic pieces are fixedly arranged between the first supporting table and the second supporting table, and a vibration motor is arranged on the first supporting table and/or the second supporting table; the vibration motor is a microwave vibration motor, and the support assembly is driven by the microwave vibration motor to vibrate, so that powder on the surface of the product falls due to vibration, and the powder on the surface of the product can be cleaned more effectively.

In order to better realize the invention, the powder cleaning device further comprises a recovery device, and the recovery device is arranged below the second support table and is used for collecting powder; the position area of the second support platform opposite to the powder cleaning platform is provided with a grid plate structure, so that the powder flows into the recovery device.

In order to better realize the invention, the first powder cleaning mechanism comprises a lifting mechanism and a powder cleaning cover; the lifting mechanism is connected with the powder cleaning cover, and a cover opening of the powder cleaning cover is provided with a plurality of first blowing nozzles; the first blowing nozzle faces the powder cleaning platform, and compressed air is introduced into the first blowing nozzle during powder cleaning; the lifting mechanism can adjust the distance between the first blowing nozzle and the product according to the height of the product.

In order to better realize the invention, the second powder cleaning mechanism comprises a second powder cleaning mechanism frame and a second blowing nozzle, wherein the second blowing nozzle is arranged on the second powder cleaning mechanism frame, faces to the powder cleaning platform, and is introduced with compressed air when powder is cleaned.

In order to better realize the invention, the second powder cleaning mechanism further comprises a moving mechanism, and the moving mechanism is connected with the second powder cleaning mechanism frame and is used for adjusting the position of the second powder cleaning mechanism frame relative to the powder cleaning platform, namely the moving mechanism drives the position of the powder cleaning mechanism frame to change, so that the powder cleaning without dead corners can be realized.

In order to better realize the invention, the powder cleaning platform is fixedly connected with the first supporting platform in an embedded manner.

In order to better realize the invention, the powder cleaning platform is embedded and detachably connected with the first supporting platform.

In order to better realize the invention, the powder cleaning device also comprises a rotating mechanism; the powder cleaning platform comprises a first bearing plate and a second bearing plate, and the first bearing plate is movably connected with the second bearing plate; the first bearing plate and the second bearing plate are both provided with a plurality of through holes; when the first bearing plate and the second bearing plate are initially installed, the through holes are installed in a staggered mode, namely, the powder cleaning platform formed by combining the first bearing plate and the second bearing plate is free of a powder flowing channel; the first bearing plate is movably embedded in the first supporting platform and used for placing a product to be cleaned.

The rotating mechanism is arranged on the second support platform; one end, far away from the second supporting table, of the rotating mechanism is movably connected with the second bearing plate, and the rotating mechanism is used for driving the second bearing plate to rotate so that the through hole of the first bearing plate is opposite to the through hole of the second bearing plate, namely, a powder flowing channel is formed by the powder cleaning platform formed by combining the first bearing plate and the second bearing plate.

In order to better realize the invention, the powder cleaning device further comprises a conveying mechanism, wherein the conveying mechanism penetrates through the second support platform and is arranged below the first support platform and used for conveying the powder cleaning platform.

In order to better realize the invention, the through hole of the first bearing plate is a round hole, and the through hole of the second bearing plate is a square hole, so that the quicksand channel is smoother.

In order to better realize the invention, the main body of the powder cleaning device is of a frame structure, and the periphery of the main body is made of transparent materials, so that the powder cleaning condition can be conveniently observed.

A powder cleaning method adopting the powder cleaning device with the rotating mechanism and the conveying mechanism comprises the following steps:

step S01, placing the powder cleaning platform in a working box of a printer;

step S02, after the printer lays the powder for a certain number of layers, the normal product printing is started;

step S03, after the product is printed, jacking up the powder cleaning platform, and conveying the powder cleaning platform into the powder cleaning device by adopting a conveying mechanism to enable the first bearing plate to be embedded into the first supporting table;

step S04, the rotating mechanism rotates to drive the second bearing plate to rotate, so that the through hole of the first bearing plate and the through hole of the second bearing plate form a passage oppositely; the powder flows out along the passage;

step S05, after the powder outflow is reduced, starting a first powder cleaning mechanism to blow powder;

step S06, after the powder on the surface of the product is cleaned, starting a vibration motor to drive the powder on the product to fall down, and simultaneously starting a second powder cleaning mechanism to blow powder;

and step S07, after the powder cleaning of the product is finished, the conveying mechanism conveys the powder cleaning platform with the product to the next station.

The invention has the beneficial effects that:

because the product produced by the additive manufacturing equipment needs to be cleaned of uncured powder, the powder cleaning device for the additive manufacturing equipment is provided with the powder cleaning platform with the through hole, the powder cleaning platform with the product to be cleaned is conveyed into the powder cleaning equipment and sequentially passes through natural powder flowing, powder cleaning by the first powder cleaning mechanism, powder cleaning by the second powder cleaning mechanism and vibration powder cleaning, so that manual operation is replaced by mechanization, the labor intensity of workers is obviously reduced, and the working environment is improved; the production efficiency is improved, the powder cleaning and damage rate of the product is reduced, and the production quality of the product is effectively improved.

Drawings

FIG. 1 is a schematic perspective view of a powder removing device according to an embodiment;

FIG. 2 is a front view of the structure of the powder cleaning device in the embodiment;

FIG. 3 is a schematic structural view of a first dust removing mechanism according to the embodiment;

100-a powder cleaning device body; 200-a support assembly; 300-a powder cleaning platform; 400-a powder cleaning component; 500-a conveying mechanism; 600-a rotation mechanism; 700-a vibration assembly; 800-a recovery unit;

210-a first support table; 220-a second support table;

310-a first carrier plate; 320-a second carrier plate;

410-a first dust removing mechanism; 420-a second powder cleaning mechanism;

710-a vibration motor; 720-an elastic member;

411-a lifting mechanism; 412-clear powder cover;

421-a second powder cleaning mechanism frame; 422-a second blowing nozzle; 423-moving mechanism.

Detailed Description

To facilitate an understanding of the invention, the invention is described more fully hereinafter with reference to the accompanying drawings, in which specific embodiments are shown. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

A powder cleaning device for additive manufacturing equipment, please refer to fig. 1 and fig. 2, comprising a powder cleaning device main body 100, a supporting component 200, a powder cleaning platform 300, and a powder cleaning component 400; the supporting component 200 is arranged inside the powder cleaning device main body 100; the powder cleaning platform 300 is used for placing a product to be cleaned, and a plurality of through holes are formed in the powder cleaning platform 300 and used for forming a powder flowing channel so that uncured powder can naturally flow out; the powder cleaning platform 300 is arranged on the support assembly 200, and the support assembly 200 is used for supporting the powder cleaning platform 300; the powder cleaning assembly 400 comprises a first powder cleaning mechanism 410 and a second powder cleaning mechanism 420; the first powder cleaning mechanism 410 is arranged above the powder cleaning platform 300, and the second powder cleaning mechanism 420 is arranged below the powder cleaning platform 300; the powder cleaning component 400 is used for cleaning powder on a product to be cleaned; wherein first clear powder mechanism 410 is used for clearing up the powder of product upper surface, and second clear powder mechanism 420 is used for clearing up the powder on the surface relative with clear powder platform 300 of product through the through-hole that sets up on clear powder platform 300, and first clear powder mechanism 410 and second clear powder mechanism 420 all can adopt the mode of blowing or inhaling to clear up the powder.

In one embodiment, the powder cleaning device further comprises a vibration assembly 700, wherein the vibration assembly 700 comprises a vibration motor 710 and an elastic member 720; a plurality of elastic members 720 are fixedly arranged between the first supporting platform 210 and the second supporting platform 220, and the elastic members 720 are preferably springs, so that the first supporting platform 210 and the second supporting platform 220 have a buffering effect, the phenomena that the first supporting platform 210 and the second supporting platform 220 are easy to wear due to rigid connection during vibration and the like are avoided, and further, the vibration effect can be increased by matching with the vibration motor 710; the first supporting table 210 and/or the second supporting table 220 are/is provided with a vibration motor 710; the vibration motor 710 is a microwave vibration motor 710, and the microwave vibration motor 710 drives the supporting component 200 to vibrate, so that the powder on the surface of the product falls due to vibration, and the powder on the surface of the product can be cleaned more effectively.

In one embodiment, the powder cleaning apparatus further includes a recycling apparatus 800, the recycling apparatus 800 is disposed below the second supporting platform 220 for collecting powder; the position area of the second supporting platform 220 opposite to the powder cleaning platform 300 is set to be a grid plate structure, so that the powder can conveniently flow into the recovery device 800, and the powder can be effectively collected for secondary utilization.

In one embodiment, referring to fig. 3, the first powder cleaning mechanism 410 includes a lifting mechanism 411 and a powder cleaning cover 412; the lifting mechanism 411 is connected with the powder cleaning cover 412, and a plurality of first blowing nozzles are arranged at the cover opening of the powder cleaning cover 412; the first blowing nozzle faces the powder cleaning platform 300, and compressed air is introduced into the first blowing nozzle during powder cleaning to blow off powder on the surface of a product; the lifting mechanism 411 can adjust the distance between the first blowing nozzle and the product according to the height of the product, and the optimal distance can be adjusted to enable the powder cleaning device to achieve the optimal powder cleaning effect.

Specifically, the cover opening of the powder cleaning cover 412 is provided with a grid plate, and the grid plate is provided with a plurality of fine through holes for shunting gas and increasing air pressure, so that the powder cleaning efficiency is higher.

In one embodiment, the second powder cleaning mechanism 420 includes a second powder cleaning mechanism frame 421 and a second blowing nozzle 422, the second powder cleaning mechanism frame 421 is provided with a plurality of second blowing nozzles 422, the second blowing nozzles 422 face the powder cleaning platform 300, and compressed air is introduced into the second blowing nozzles 422 during powder cleaning to blow off powder on the surface of the product opposite to the powder cleaning platform 300.

Specifically, the second powder cleaning mechanism 420 further includes a moving mechanism 423, and the moving mechanism 423 is connected to the second powder cleaning mechanism frame 421 and is configured to adjust the position of the second powder cleaning mechanism frame 421 relative to the powder cleaning platform 300, that is, the moving mechanism 423 drives the position of the powder cleaning mechanism frame to change up and down and/or horizontally, so that powder cleaning without a dead angle can be achieved.

In one embodiment, the powder cleaning platform 300 is fixedly connected with the first supporting platform 210 in an embedded manner; preferably, the breading platform 300 is a first support table 210 for holding a product to be breaded.

In one embodiment, the powder cleaning platform 300 is detachably connected with the first supporting platform 210 in an embedded manner; preferably, the powder removing platform 300 and the first supporting platform 210 can be connected by means of a clamping groove.

In one embodiment, the powder cleaning device further comprises a rotating mechanism 600; the powder cleaning platform 300 comprises a first bearing plate 310 and a second bearing plate 320, wherein the first bearing plate 310 is movably connected with the second bearing plate 320; the first carrier plate 310 and the second carrier plate 320 are both provided with a plurality of through holes; when the first bearing plate 310 and the second bearing plate 320 are initially installed, the through holes are installed in a staggered manner, that is, the powder cleaning platform 300 formed by combining the first bearing plate 310 and the second bearing plate 320 has no powder flowing channel; the first bearing plate 310 is movably embedded in the first supporting table 210 and used for placing a product to be cleaned; preferably, the through hole of the first bearing plate 310 is a circular hole, and the through hole of the second bearing plate 320 is a square hole, so that the quicksand passage is smoother.

The rotating mechanism 600 is disposed on the second supporting stage 220; the end of the rotating mechanism 600 far away from the second supporting platform 220 is movably connected to the second bearing plate 320, and the rotating mechanism 600 is used to drive the second bearing plate 320 to rotate, so that the through hole of the first bearing plate 310 is opposite to the through hole of the second bearing plate 320, that is, the powder cleaning platform 300 formed by combining the first bearing plate 310 and the second bearing plate 320 forms a powder flowing channel.

Specifically, the powder cleaning device further comprises a conveying mechanism 500, wherein the conveying mechanism 500 is arranged below the first supporting platform 210 through the second supporting platform 220 and used for conveying the powder cleaning platform 300.

It should be noted that the powder cleaning method of the powder cleaning device with the rotating mechanism 600 and the conveying mechanism 500 includes the following steps:

step S01, placing the powder cleaning platform 300 in a working box of a printer;

step S02, after the printer lays the powder for a certain number of layers, the normal product printing is started;

step S03, after the product is printed, the powder cleaning platform 300 is jacked up, and the powder cleaning platform 300 is conveyed into the powder cleaning device by the conveying mechanism 500, so that the first bearing plate 310 is embedded into the first supporting table 210;

step S04, the rotating mechanism 600 rotates to drive the second carrier plate 320 to rotate, so that the through hole of the first carrier plate 310 and the through hole of the second carrier plate 320 form a passage; the powder flows out along the passage;

step S05, after the powder outflow is reduced, the first powder cleaning mechanism 410 is opened to blow powder;

step 06, after the powder on the surface of the product is cleaned, the vibration motor 710 is started to drive the powder on the product to fall down, and the second powder cleaning mechanism 420 is started to blow powder;

step S07, after the product is cleaned, the conveying mechanism 500 conveys the cleaning platform 300 with the product to the next station.

In one embodiment, the main body 100 of the powder cleaning device is a frame structure, and the periphery of the main body is made of transparent material, so that the powder cleaning condition can be observed conveniently.

The powder cleaning device provided by the invention is in a completely closed state in the powder cleaning process, and no dust is discharged in the process; can set up the automatically rising door, when the clear powder product of treating is carried to needs, the automatically rising door rises, will treat clear powder product and carry to the device in the back, the automatically rising door falls to the clear wind device and seals the back completely, begins to clear powder work, and the clear frame check of the transparent material of powder course of operation accessible are looked over at any time and are trailed.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.