CN215473107U

CN215473107U - 3D printing material feeding device

Info

Publication number: CN215473107U
Application number: CN202120813729.6U
Authority: CN
Inventors: 葛志祥; 黄超; 刘展志
Original assignee: Hubei Joye 3d High-Tech Co ltd
Current assignee: Hubei Joye 3d High-Tech Co ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2022-01-11
Anticipated expiration: 2031-04-20

Abstract

The utility model discloses a 3D printing material feeding device, which comprises a printing table, a slide rail, a strickle component and a feeding component, wherein: the utility model discloses a printing machine, including printing table, slide rail, scraping component, pay-off subassembly, scraper component, material storage hopper, slide rail, material storage hopper, the printing table upper surface forms the face of printing, slide rail fixed connection be in on the face of printing, scrape the subassembly and the pay-off subassembly all with slide rail sliding connection, the pay-off subassembly presss from both sides and locates two scrape between the subassembly, scrape the subassembly length direction with slide rail sliding direction is perpendicular, it includes the scraper blade to scrape the subassembly, the scraper blade under the terminal surface with the face of printing butt, the pay-off subassembly includes the storage hopper, the discharge gate is seted up to the storage hopper below, the discharge gate with the face of printing butt. According to the utility model, the storage hopper is adopted to supply materials to the printer, the scrapers are arranged on two sides of the storage hopper in the moving direction for scraping, the straightness of the scrapers in the moving process is ensured by the slide rails, the uniform thickness of the printed powder on each layer can be ensured, and the printing quality is improved.

Description

3D printing material feeding device

Technical Field

The utility model relates to the technical field of 3D printing, in particular to a 3D printing material feeding device.

Background

The 3D printing technology, one of the rapid prototyping technologies, is a technology for constructing an object by using photosensitive materials such as photosensitive resin and the like and printing layer by layer on the basis of a digital model file. The laser sintering 3D printing system adopts a powder laying mode to lay a layer of powder and print a layer.

Because the mobility is good when liquid is printed, only need to strickle and print next time, and powder mobility is not as good as liquid, and every layer of printing just need add once powder and strickle, if do not have special feeding mechanism, only rely on the scraper blade to hang and move and make the powder flow, can lead to printing finished product quality poor, consequently need adopt special feeding mechanism to feed it.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the technical defects and provides a 3D printing material feeding device which is used for solving the problem of poor printing quality of solid fixation 3D in the prior art.

In order to achieve the technical purpose, the technical scheme of the utility model is as follows: the utility model provides a 3D printing material feed arrangement, its includes print table, slide rail, strickles off subassembly and pay-off subassembly, wherein: the upper surface of the printing table forms a printing surface. The slide rail fixed connection is on the printing surface. Strickle the subassembly and all with slide rail sliding connection with the pay-off subassembly, the pay-off subassembly presss from both sides and locates two and strickle the subassembly between, strickle subassembly length direction and slide rail sliding direction perpendicular, strickle the subassembly and include the scraper blade, terminal surface and printing face butt under the scraper blade, the pay-off subassembly includes the storage hopper, and the discharge gate is seted up to the storage hopper below, discharge gate and printing face butt.

Preferably, the number of the slide rails is two, the two slide rails are arranged in parallel, the two scraping assemblies and the feeding assembly are arranged between the two slide rails in a spanning manner, and two ends of each of the scraping assemblies and two ends of each of the feeding assembly are fixedly connected with the sliding seats of the two slide rails respectively.

Preferably, 3D printing material feed arrangement still includes drive assembly, and drive assembly includes drive unit, band conveyer and connecting block, and band conveyer and slide rail parallel arrangement, band conveyer and drive unit fixed connection are on the face of printing, and drive unit is connected with band conveyer transmission, and it all is connected with band conveyer's belt with the connecting block respectively to strike off subassembly and pay-off subassembly.

Preferably, the strickle component further comprises a first connecting seat, the first connecting seat is arranged between the two sliding rails in a crossing mode, two ends of the first connecting seat are fixedly connected with sliding seats of the two sliding rails respectively, and the first connecting seat is fixedly connected with the scraper.

Preferably, the feeding assembly further comprises a second connecting seat, the second connecting seat is arranged between the two sliding rails in a crossing mode, two ends of the second connecting seat are fixedly connected with sliding seats of the two sliding rails respectively, and the second connecting seat is fixedly connected with the storage hopper.

Preferably, the drive unit is a motor.

Preferably, the driving assembly further comprises a connecting shaft, the two belt conveyors are respectively arranged at two ends of the scraping assembly, the connecting shaft is arranged between the two belt conveyor rotating shafts, and the connecting shaft is connected with the belt conveyor rotating shafts through a coupling.

Preferably, the storage hopper includes storage hopper body and polylith connecting plate, and the connecting plate setting is in storage hopper body below, and polylith connecting plate surrounds and forms the discharge gate.

Preferably, 3D prints material feed arrangement still includes the vibration unit, and vibration unit fixed connection is at the lateral surface of the connecting plate that sets up along discharge gate length direction.

Preferably, the vibrating units are uniformly arranged along the length direction of the discharge port.

Compared with the prior art, the utility model has the beneficial effects that: the storage hopper is adopted to feed the printer, the scrapers are arranged on two sides of the motion direction of the storage hopper to scrape, straightness of the scrapers in the motion process is guaranteed through the sliding rails, the thickness of printed powder on each layer is even, and printing quality is improved.

Drawings

Fig. 1 is a top view of a 3D printing material feeding device provided by the present invention;

fig. 2 is a front view of a 3D printed material feeding device provided by the present invention;

fig. 3 is a front view and a side view of a storage hopper and a vibration unit of a 3D printing material feeding device provided by the present invention;

reference numerals: 1-printing table, 2-sliding rail, 3-strickle component, 4-feeding component, 5-driving component, 6-vibration unit, 11-printing surface, 31-scraper, 32-first connecting seat, 41-storage hopper, 42-second connecting seat, 51-driving unit, 52-belt conveyor, 53-connecting block, 54-connecting shaft, 411-discharge port, 412-storage hopper body and 413-connecting plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1 and fig. 2, the present embodiment provides a 3D printing material feeding device, which includes a printing table 1, a slide rail 2, a leveling component 3, and a feeding component 4, wherein:

a printing surface 11 is formed on the upper surface of the printing table 1, and powder is paved on the printing surface 11 and is used for laser sintering and curing to be solid. Slide rail 2 fixed connection is on printing face 11, for strickleing off subassembly 3 and providing support and guide, slide rail 2 should adopt the high standard component of straightness accuracy, makes the high position of strickleing off subassembly 3 and scraping at every turn unanimous, because print the highly uniform that drops at every turn, thereby can guarantee to print before every turn that the powder layer thickness on a surface is unanimous, guarantees laser sintering's precision and effect.

Strike off subassembly 3 and feeding subassembly 4 and all with slide rail 2 sliding connection, feeding subassembly 4 presss from both sides and locates two and strike off between the subassembly 3, it is perpendicular with slide rail 2 sliding direction to strike off subassembly 3 length direction, it includes scraper blade 31 to strike off subassembly 3, terminal surface and printing face 11 butt under the scraper blade 31, it is preferred, strike off subassembly 3 still includes first connecting seat 32, first connecting seat 32 strides and locates between two slide rails 2, first connecting seat 32 both ends respectively with the sliding seat fixed connection of two slide rails 2, first connecting seat 32 and scraper blade 31 fixed connection, in this embodiment, scraper blade 31 is connected in the middle of first connecting seat 32, with the screw fixation. The feeding assembly 4 comprises a storage hopper 41, solid powder for sintering is filled in the storage hopper 41, a discharge port 411 is formed below the storage hopper 41, the discharge port 411 is abutted to the printing surface 11, after the position of the printed material after sintering is lowered, a gap is formed between the storage hopper 41 and the discharge port 411 due to the lowering of the upper surface position of the printed material in the moving process of the storage hopper 41, and the powder in the storage hopper 41 can be discharged and filled in the gap. The feeding assembly 4 further comprises a second connecting seat 42, the second connecting seat 42 is spanned between the two slide rails 2, two ends of the second connecting seat 42 are respectively fixedly connected with the slide seats of the two slide rails 2, the second connecting seat 42 is fixedly connected with the storage hopper 41, and similarly, the storage hopper 41 is also connected in the middle of the second connecting seat 42 and fixed by screws. Preferably, the storage hopper 41 includes a storage hopper body 412 and a plurality of connection plates 413, the connection plates 413 are disposed under the storage hopper body 412, and the plurality of connection plates 413 surround to form the discharge port 411, in this embodiment, the discharge port 411 is square, please refer to fig. 3, the 3D printing material feeding apparatus further includes a vibration unit 6, the vibration unit 6 is fixedly connected to an outer side surface of the connection plate 413 disposed along a length direction of the discharge port 411, and the vibration unit 6 is uniformly disposed along the length direction of the discharge port 411, because the powder used for laser sintering has poor flowability, in the moving process of the feeding assembly 4, the vibration unit 6 vibrates to vibrate the connection plates 413, which can promote the powder in the storage hopper 41 to flow out, and at the same time, the connection plates 413 vibrate to drive the powder of the printing surface 11, which can make the powder particles tightly adhere to each other, to improve the sintering effect to a certain extent, and the vibration unit 6 can adopt elements such as a rotor motor, the vibration direction is preferably perpendicular to the length direction of the discharge port 411.

As a preferred embodiment, the number of the slide rails 2 is two, the two slide rails 2 are arranged in parallel, the two strickle assemblies 3 and the feeding assembly 4 are both arranged between the two slide rails 2 in a straddling manner, two ends of the strickle assemblies 3 and two ends of the feeding assembly 4 are respectively fixedly connected with the sliding seats of the two slide rails 2, the two slide rails 2 can ensure that the strickle assemblies 3 and the feeding assembly 4 slide stably, the slide rails 2 are generally arranged at the edge of the printing surface 11, and the middle position of the slide rails is used for 3d printing.

Further preferably, the 3D printing material feeding device further includes a driving assembly 5, the driving assembly 5 includes a driving unit 51, a belt conveyor 52 and a connecting block 53, the belt conveyor 52 is parallel to the sliding rail 2, the belt conveyor 52 and the driving unit 51 are fixedly connected to the printing surface 11, the driving unit 51 is in transmission connection with the belt conveyor 52, the leveling assembly 3 and the feeding assembly 4 are respectively connected to a belt of the belt conveyor 52 through the connecting block 53, the driving unit 51 is preferably a motor in this embodiment, and a transmission shaft of the motor and the belt conveyor 52 can be in transmission connection through a synchronous belt.

Preferably, the driving assembly 5 further comprises a connecting shaft 54, the number of the belt conveyors 52 is two, the belt conveyors 52 are respectively arranged at two ends of the scraping assembly 3, the connecting shaft 54 is arranged between the rotating shafts of the two belt conveyors 52, the connecting shaft 54 is connected with the rotating shafts of the belt conveyors 52 through a coupling, each of the scraping assembly 3 and the feeding assembly 4 is connected with two belt conveyors 52, and the phenomenon that the single-side driving enables the single-side stress of the scraping assembly 3 and the single-side stress of the feeding assembly 4 to be uneven, so that the transmission is unsmooth or even blocked is avoided.

The following is a brief description of the working principle of the 3D printing material feeding device provided by the present invention: after each sintering, the position of a printed part is lowered to be lower than the printing surface 11, the driving unit 51 drives the belt conveyor 52 to move, the belt conveyor 52 is in flexible transmission, the strickle component 3 and the feeding component 4 are driven by the belt conveyor 52 alone to move to ensure the straightness in the moving process, so the strickle effect is influenced, and the sintering quality is influenced finally, therefore, the sliding rail 2 is adopted for limiting, the straightness in the translation process of the strickle component 3 and the feeding component 4 is ensured, because the strickle component 3 and the feeding component 4 have large span, the strickle component 3 and the feeding component 4 are stressed unevenly and the mechanism is prone to failure due to the fact that the strickle component 3 and the feeding component 4 are driven by the linear module or the single-side belt conveyor 52 for single-side transmission, the double-side belt conveyor 52 is adopted, the two conveyors are in transmission connection through the connecting shaft 54, the same running speed is ensured, and if the double-side linear module transmission is adopted, the speed of the two sides is required to be ensured to be the same, namely the synchronous motion of the motor is ensured, or a corresponding transmission structure is adopted to transmit the motion from the linear module on one side to the linear module on the other side, the slide rail 2 is not required by adopting the linear module transmission, during the motion process of the strickle component 3 and the feeding component 4, since the discharge opening 411 is flush with the printing surface 11, the powder in the storage hopper 41 flows out, the vibration of the vibration unit 6 promotes the outflow of the powder, and simultaneously the powder particles on the printing surface 11 can be tightly attached, the scrapers 31 on the opposite sides of the movement direction of the scraping assembly 3 and the feeding assembly 4 scrape the powder, the scrapers 31 are arranged on the two sides of the storage hopper 41, so that after printing is finished each time, the strickle component 3 and the feed component 4 move once along one direction to print next time, namely, the strickle component 3 and the feed component 4 move back and forth each time printing is carried out twice.

In summary, according to the 3D printing material feeding device provided by the utility model, the storage hopper is used for feeding the printer, the scrapers are arranged on two sides of the storage hopper in the moving direction for scraping, the sliding rails are used for ensuring the straightness of the scrapers in the moving process, the thickness of the powder printed on each layer is uniform, and the printing quality is improved.

The above embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a 3D printing material feed arrangement, its characterized in that includes print table, slide rail, strickles off subassembly and pay-off subassembly, wherein:

a printing surface is formed on the upper surface of the printing table;

the sliding rail is fixedly connected to the printing surface;

the scraping component and the feeding component are both connected with the sliding rail in a sliding mode, the feeding component is clamped between the two scraping components, the length direction of the scraping component is perpendicular to the sliding direction of the sliding rail, the scraping component comprises a scraping plate, the lower end face of the scraping plate is abutted to the printing face, the feeding component comprises a storage hopper, a discharge hole is formed in the lower portion of the storage hopper, and the discharge hole is abutted to the printing face.

2. The 3D printing material feeding device according to claim 1, wherein the number of the slide rails is two, the two slide rails are arranged in parallel, the two scraping assemblies and the feeding assembly are arranged between the two slide rails in a spanning manner, and two ends of each of the scraping assemblies and the feeding assembly are respectively fixedly connected with sliding seats of the two slide rails.

3. The 3D printing material feeding device according to claim 2, wherein the 3D printing material feeding device further comprises a driving assembly, the driving assembly comprises a driving unit, a belt conveyor and a connecting block, the belt conveyor and the sliding rail are arranged in parallel, the belt conveyor and the driving unit are fixedly connected to the printing surface, the driving unit is in transmission connection with the belt conveyor, and the scraping assembly and the feeding assembly are respectively connected with a belt of the belt conveyor through the connecting block.

4. The 3D printing material feeding device according to claim 2, wherein the scraping assembly further comprises a first connecting seat, the first connecting seat spans between the two slide rails, two ends of the first connecting seat are respectively and fixedly connected with sliding seats of the two slide rails, and the first connecting seat is fixedly connected with the scraper.

5. The 3D printing material feeding device according to claim 2, wherein the feeding assembly further comprises a second connecting seat, the second connecting seat is spanned between the two slide rails, two ends of the second connecting seat are respectively fixedly connected with sliding seats of the two slide rails, and the second connecting seat is fixedly connected with the storage hopper.

6. A 3D printed material feeding device according to claim 3, characterized in that the driving unit is a motor.

7. The 3D printing material feeding device according to claim 3, wherein the driving assembly further comprises two connecting shafts, the two belt conveyors are respectively arranged at two ends of the scraping assembly, the connecting shafts are arranged between the two belt conveyor rotating shafts, and the connecting shafts are connected with the belt conveyor rotating shafts through couplings.

8. The 3D printing material feeding device according to claim 1, wherein the storage hopper comprises a storage hopper body and a plurality of connecting plates, the connecting plates are arranged below the storage hopper body, and the plurality of connecting plates surround to form the discharge hole.

9. The 3D printing material feeding device according to claim 8, further comprising a vibration unit, wherein the vibration unit is fixedly connected to the outer side face of the connecting plate arranged along the length direction of the discharging port.

10. The 3D printing material feeding device according to claim 9, wherein the vibrating units are arranged uniformly along the length direction of the discharge port.