CN212045987U

CN212045987U - 3D prints high-speed material feeding unit

Info

Publication number: CN212045987U
Application number: CN201922370941.5U
Authority: CN
Inventors: 刘冉
Original assignee: Shenzhen Geeetech Technology Co ltd
Current assignee: Shenzhen Geeetech Technology Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-12-01
Anticipated expiration: 2029-12-26

Abstract

The utility model relates to the technical field of 3D printing, in particular to a 3D printing high-speed feeding device; the servo motor is fixedly connected with the rear side surface of the base, and a transmission gear connected with an output shaft of the servo motor is arranged on the front side surface of the base; two driving wheels are symmetrically arranged on two sides of the transmission gear, the two driving wheels are respectively in rotating connection with the base through rotating shafts, and driven gears meshed with the transmission gear are arranged on the driving wheels; the upper end of the base is provided with an adjusting device, and the adjusting device is provided with extrusion wheels respectively matched with the two driving wheels; the utility model discloses rational in infrastructure, but through adjustment handle quick adjustment action wheel and the coefficient of friction between the pinch roller, improve feed frictional force through two sets of synchronous action wheels and pinch roller, can prevent effectively that the feed from skidding the phenomenon, thereby improve feed speed and guarantee to print efficiency and quality.

Description

3D prints high-speed material feeding unit

Technical Field

The utility model relates to a 3D prints technical field, specifically indicates a 3D prints high-speed material feeding unit.

Background

3D printing (3DP), one of the rapid prototyping technologies, is a technology that constructs an object by printing layer by layer using an adhesive material such as powdered metal or plastic based on a digital model file. 3D printing is typically achieved using digital technology material printers; the method is often used for manufacturing models in the fields of mold manufacturing, industrial design and the like, and is gradually used for directly manufacturing some products, and parts printed by the technology are already available.

The 3D printer is printing the in-process, and the material that spouts plastics need process such as rapid heating, the design of spouting plastics and quick cooling, and the material feeding unit of present 3D printer generally is that a action wheel compresses tightly circular consumptive material with a follow driving wheel, utilizes frictional force pay-off. The consumable and the feeding wheel are only in point and linear contact, and the friction force generated by a small contact surface is limited. When the resistance in the feeding process is too large, the sliding phenomenon is easy to occur between the feeding device and the material, so that the printing precision is influenced, and the printing efficiency is also restricted. Accordingly, the prior art is yet to be improved and developed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a rational in infrastructure, stability good, can effectively improve the 3D who prints efficiency and print high-speed material feeding unit.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model discloses a 3D prints high-speed material feeding unit, including base and servo motor, servo motor and the trailing flank fixed connection of base, be equipped with the drive gear with servo motor output shaft on the leading flank of base; two driving wheels are symmetrically arranged on two sides of the transmission gear, the two driving wheels are respectively in rotating connection with the base through rotating shafts, and driven gears meshed with the transmission gear are arranged on the driving wheels; the upper end of the base is provided with an adjusting device, and the adjusting device is provided with extrusion wheels respectively matched with the two driving wheels.

According to above scheme, adjusting device includes two regulating blocks, and two regulating blocks are connected with the base cooperation respectively, and the top of action wheel is located correspondingly to two extrusion wheels, and two extrusion wheels rotate through pivot and corresponding regulating block respectively and be connected.

According to the scheme, the guide strip is arranged on the front side surface of the base, and the two adjusting blocks and the extrusion wheels thereof are symmetrically arranged on two sides of the guide strip; the upper end of the guide strip is provided with an adjusting handle, and the adjusting handle is respectively connected with the two adjusting blocks in a matching manner.

According to the scheme, the adjusting block is of a triangular structure, the extrusion wheel is connected to the bottom corner end of the adjusting block through the rotating shaft, and one top corner end of the adjusting block is fixedly connected with the base through the rotating shaft; the adjusting handle is connected with the other vertex angle end of the two adjusting blocks in a matching way.

According to the scheme, the two side edges of the front side surface of the base are both provided with the guide blocks, and the guide blocks are provided with the material conveying ports; the lower extreme of gib block also is equipped with and passes the material mouth, and three biography material mouths all are in on the linear feed passageway and this feed passageway all is tangent with the outer fringe of two action wheels.

The utility model discloses beneficial effect does: the utility model discloses rational in infrastructure, but through adjustment handle quick adjustment action wheel and the coefficient of friction between the pinch roller, improve feed frictional force through two sets of synchronous action wheels and pinch roller, can prevent effectively that the feed from skidding the phenomenon, thereby improve feed speed and guarantee to print efficiency and quality.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure:

1. a base; 2. a servo motor; 3. a driving wheel; 11. a guide strip; 12. a guide block; 13. a material conveying port; 14. an adjusting block; 15. an adjusting handle; 21. a transmission gear; 31. a driven gear; 32. and (4) extruding the wheel.

Detailed Description

The technical solution of the present invention will be described below with reference to the accompanying drawings and examples.

As shown in fig. 1, the utility model discloses a 3D printing high-speed feeding device, including base 1 and servo motor 2, servo motor 2 is connected with the trailing flank fixed connection of base 1, is equipped with the drive gear 21 with servo motor 2 output shaft on the leading flank of base 1; two driving wheels 3 are symmetrically arranged on two sides of the transmission gear 21, the two driving wheels 3 are respectively rotatably connected with the base 1 through rotating shafts, and a driven gear 31 meshed with the transmission gear 21 is arranged on each driving wheel 3; the upper end of the base 1 is provided with an adjusting device, and the adjusting device is provided with extrusion wheels 32 respectively matched with the two driving wheels 3; servo motor 2 drives two action wheels 3 through the drive gear 21 on the output shaft and rotates, and the fit clearance between extrusion wheel 32 and the action wheel 3 constitutes the feed passageway, and the plastic-sprayed material is extruded output under the effect of frictional force, and extrusion wheel 32 passes through adjusting device and can change the clearance between it and the action wheel 3 to realize the regulation of frictional force through extrusion stress's change, guarantee that the plastic-sprayed material under high-speed printing state can not appear skidding the phenomenon, guarantee 3D printing efficiency and quality.

The adjusting device comprises two adjusting blocks 14, the two adjusting blocks 14 are respectively matched and connected with the base 1, the two extrusion wheels 32 are correspondingly arranged above the driving wheel 3, and the two extrusion wheels 32 are respectively in rotating connection with the corresponding adjusting blocks 14 through rotating shafts; the adjusting block 14 is used for installing and adjusting the extrusion wheel 32, and the position of the adjusting block 14 relative to the driving wheel 3 is adjusted, so that the gap between the extrusion wheel 32 and the driving wheel 3 is changed, and the friction coefficient between the plastic spraying material and the feeding device is realized.

The front side surface of the base 1 is provided with a guide strip 11, and the two adjusting blocks 14 and the extrusion wheels 32 thereof are symmetrically arranged at two sides of the guide strip 11; the upper end of gib block 11 is equipped with adjustment handle 15, and adjustment handle 15 is connected with two regulating blocks 14 cooperations respectively, gib block 11 is used for installing adjustment handle 15, and adjustment handle 15 can adopt various mechanisms that can drive the action of regulating block 14 such as spiral pressure regulating formula, rack formula or flange pressure regulating, the utility model discloses set up screw rod and spring between preferred adjustment handle 15 and the gib block 11, adjustment handle 15's spiral action can change the clearance between extrusion wheel 32 and the action wheel 3 on the regulating block 14.

The adjusting block 14 is of a triangular structure, the extrusion wheel 32 is connected to the bottom corner end of the adjusting block 14 through a rotating shaft, and one top corner end of the adjusting block 14 is fixedly connected with the base 1 through the rotating shaft; adjusting handle 15 is connected with the cooperation of another apex angle end of two regulating blocks 14, one of them apex angle end of regulating block 14 is articulated with base 1 as the hinge fulcrum, and the rotation of regulating block 14 on base 1 can drive extrusion wheel 32 and move from top to bottom to change the clearance gear between extrusion wheel 32 and the action wheel 3, because the motion trail of extrusion wheel 32 is circumferential motion for another apex angle end of regulating block 14, consequently the refining of pressure regulating precision can be realized to regulating block 14 under adjusting handle 15's spinning drive.

The two side edges of the front side surface of the base 1 are provided with guide blocks 12, and the guide blocks 12 are provided with material conveying ports 13; the lower extreme of gib block 11 also is equipped with and passes material mouth 13, and three material mouth 13 that pass all is in on the linear feed passageway and this feed passageway all is tangent with the outer fringe of two action wheels 3.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims

1. The utility model provides a 3D prints high-speed material feeding unit, includes base (1) and servo motor (2), its characterized in that: the servo motor (2) is fixedly connected with the rear side surface of the base (1), and a transmission gear (21) connected with an output shaft of the servo motor (2) is arranged on the front side surface of the base (1); two driving wheels (3) are symmetrically arranged on two sides of the transmission gear (21), the two driving wheels (3) are respectively and rotatably connected with the base (1) through rotating shafts, and a driven gear (31) meshed with the transmission gear (21) is arranged on each driving wheel (3); the upper end of the base (1) is provided with an adjusting device, and the adjusting device is provided with extrusion wheels (32) which are respectively matched with the two driving wheels (3).

2. The 3D printing high-speed feeding device according to claim 1, wherein: the adjusting device comprises two adjusting blocks (14), the two adjusting blocks (14) are respectively matched and connected with the base (1), the two extrusion wheels (32) are correspondingly arranged above the driving wheel (3), and the two extrusion wheels (32) are respectively connected with the corresponding adjusting blocks (14) in a rotating mode through rotating shafts.

3. The 3D printing high-speed feeding device according to claim 2, characterized in that: the front side surface of the base (1) is provided with a guide strip (11), and the two adjusting blocks (14) and the extrusion wheels (32) thereof are symmetrically arranged on two sides of the guide strip (11); the upper end of the guide strip (11) is provided with an adjusting handle (15), and the adjusting handle (15) is respectively connected with the two adjusting blocks (14) in a matching manner.

4. The 3D printing high-speed feeding device according to claim 3, characterized in that: the adjusting block (14) is of a triangular structure, the extrusion wheel (32) is connected to the bottom corner end of the adjusting block (14) through a rotating shaft, and one top corner end of the adjusting block (14) is fixedly connected with the base (1) through the rotating shaft; the adjusting handle (15) is connected with the other vertex angle end of the two adjusting blocks (14) in a matching way.

5. The 3D printing high-speed feeding device according to claim 3, characterized in that: the two side edges of the front side surface of the base (1) are provided with guide blocks (12), and the guide blocks (12) are provided with material conveying ports (13); the lower extreme of gib block (11) also is equipped with and passes material mouth (13), and three material mouth (13) of passing are all on linear feed channel and this feed channel all is tangent with the outer fringe of two action wheels (3).