Double-nozzle device for continuous carbon fiber 3D printing

Abstract

The utility model relates to a double-nozzle device for continuous carbon fiber 3D printing, which comprises a mounting plate, a carbon fiber nozzle device and a resin nozzle device, the carbon fiber nozzle device and the resin nozzle device are mounted on the mounting plate, the carbon fiber nozzle device is used for forming a carbon fiber sample piece, and the resin nozzle device is used for forming a peripheral resin structure surrounding the carbon fiber sample piece. The carbon fiber nozzle device comprises a lifting mechanism and a resin nozzle connected with the lifting mechanism, the lifting mechanism is used for driving the resin nozzle to move up and down, and when the carbon fiber nozzle device acts, the resin nozzle moves upwards to avoid. According to the double-nozzle device for continuous carbon fiber 3D printing, the whole formed sample piece is made of a carbon fiber material, the shell is made of a resin material, the two different materials are extruded through different nozzles, and the performance of the formed sample piece is enhanced under the condition that the size precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to nonmetallic additive manufacturing technical field, especially relate to a double nozzle device for continuous carbon fiber 3D printing. BACKGROUND

[0002] 3D printing as the main implementation form of additive manufacturing technology is called " manufacturing technology with industrial revolution significance " and is a new emerging technology in manufacturing field that is developing rapidly, carbon fiber composite material is important strategic material of developing national defense and national economy and belongs to key material of technology intensive. The combination of continuous carbon fiber composite material and 3D printing rapid prototyping technology provides a new manufacturing way for the forming manufacturing of carbon fiber material parts.

[0003] The combination of continuous carbon fiber composite material and 3D printing technology can give full play to the performance advantages of carbon fiber composite material light weight and high strength and also comprehensively has the advantages of 3D printing technology rapid prototyping, and the combination of the two provides a new idea for increasing the application breadth of carbon fiber material and expanding its application field and has broad development prospect.

[0004] Due to the continuity, expansibility and anisotropy of carbon fiber composite material, the continuous carbon fiber composite material 3D printing technology is prone to the risk of material blockage and breakage in the forming process, and due to the characteristics that the fiber is expanded from a circle to a cloth shape in the forming process, when the single nozzle is used to form the carbon fiber material model, the forming size precision is poor, and the roughness is high. UTILITY MODEL CONTENTS

[0005] In order to solve the problems in the background art, the utility model provides a double nozzle device for continuous carbon fiber 3D printing, the overall forming sample piece adopts carbon fiber material, the shell adopts resin material, and two different materials adopt different nozzles to extrude, which enhances the performance of the forming sample piece under the condition of increasing the size precision.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a double nozzle device for continuous carbon fiber 3D printing, including mounting plate and carbon fiber nozzle device and resin nozzle device installed on the mounting plate, the carbon fiber nozzle device is used for forming carbon fiber sample piece, and the resin nozzle device is used for forming the peripheral resin structure to surround the carbon fiber sample piece, the carbon fiber nozzle device includes lifting mechanism and resin nozzle connected with the lifting mechanism, the lifting mechanism is used for driving the resin nozzle to move up and down, when the carbon fiber nozzle device acts, the resin nozzle moves upward to avoid.

[0008] Further, the resin nozzle device is fixedly installed on one side of the carbon fiber nozzle device, the lifting mechanism comprises a lifting motor module, a connecting piece and a resin nozzle, the output end of the lifting motor module is connected with the connecting piece, the resin nozzle is fixedly connected on the connecting piece, the lifting motor module drives the connecting piece to move up and down, thereby driving the resin nozzle to move up and down.

[0009] Further, the resin nozzle device further comprises a heat dissipation device, the heat dissipation device is fixedly installed on the upper end of the resin nozzle, for reducing the temperature of the upper end of the resin nozzle.

[0010] Further, the heat dissipation device comprises a heat dissipation fin and a heat dissipation fan, the heat dissipation fan is oppositely installed with the heat dissipation fin.

[0011] Further, the carbon fiber nozzle device comprises a driving wheel device, a feeding channel and a carbon fiber nozzle, the feeding channel is located directly below the driving wheel device, the driving wheel device is used for conveying carbon fiber to the feeding channel, the feeding channel extends into the carbon fiber nozzle, and the carbon fiber nozzle is used for extruding the carbon fiber into a sample.

[0012] Further, the driving wheel device comprises a driving component, a driving wheel and a driven wheel, the driving component is fixedly installed on the mounting plate, the output end of the driving component is connected with the driving wheel, and the driving wheel is engaged with the driven wheel.

[0013] Further, the driving wheel device further comprises an adjusting mechanism, the adjusting mechanism is used for adjusting the height position of the driven wheel, and the adjusting mechanism comprises an adjusting handle, an adjusting screw, a sliding block, a spring and the driven wheel, the adjusting handle is fixedly connected with the adjusting screw, the spring and the sliding block are sleeved on the adjusting screw, the adjusting handle is rotated to drive the adjusting screw to rotate, thereby driving the sliding block to move, one end of the spring is abutted with the sliding block, and the driven wheel is rotatably installed on the sliding block.

[0014] Further, the carbon fiber nozzle device further comprises an insulating plate, and the insulating plate is fixedly installed on the upper end of the carbon fiber nozzle.

[0015] Further, the carbon fiber cutting device is installed on the carbon fiber nozzle device and is used for cutting the carbon fiber close to the carbon fiber nozzle.

[0016] Further, the carbon fiber shearing device comprises a shearing motor module and a shearing blade, the output end of the shearing motor module is fixedly connected with the shearing blade, is used for driving the shearing blade to perform a shearing action, the feeding channel comprises a channel upper part and a channel lower part, the channel lower parts are separated, the shearing blade is used for cutting the carbon fiber from the separated position, and the separated position is arranged close to the carbon fiber nozzle.

[0017] The utility model discloses a carbon fiber 3D printing device, which comprises a feeding channel, a carbon fiber nozzle device and a resin nozzle device.

[0018] The utility model discloses a double nozzle device for continuous carbon fiber 3D printing, including mounting panel and the carbon fiber nozzle device and resin nozzle device of installation on mounting panel, the carbon fiber nozzle device is used for forming carbon fiber sample piece, and the resin nozzle device is used for forming the peripheral resin structure and surrounds carbon fiber sample piece, adopts the mode of double nozzle to enhance the performance of the forming sample piece under the condition of increasing the size precision, improves the forming degree of freedom, and increases the forming object range.

[0019] The carbon fiber nozzle device comprises a lifting mechanism, which is used to drive the resin nozzle to move up and down. When the carbon fiber nozzle device is in action, the resin nozzle moves upward to avoid, thereby increasing the molding precision.

[0020] The utility model discloses a shearing device, which shears the carbon fiber material in the front section of the feeding channel, increases the molding degree of freedom, and the carbon fiber shearing device is close to the carbon fiber nozzle, belongs to the process of proximal shearing, and can increase the precision in the molding process. BRIEF DESCRIPTION OF DRAWINGS

[0021] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of preferred embodiments, and are not meant to limit the present utility model. Throughout the drawings, like reference numerals are used to designate like parts. In the drawings:

[0022] Figure 1 is the structure schematic view of the double nozzle device for continuous carbon fiber 3D printing provided by the utility model;

[0023] Figure 2 is the front view of the double nozzle device for continuous carbon fiber 3D printing provided by the utility model;

[0024] Figure 3 is the side view of the double nozzle device for continuous carbon fiber 3D printing provided by the utility model;

[0025] Figure 4 is the structure schematic view of the carbon fiber shearing device. DETAILED DESCRIPTION

[0026] Exemplary embodiments of the present application will be described herein below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it is understood that the present application can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0027] As shown in the drawings, the present application provides a double nozzle device for continuous carbon fiber 3D printing, comprising a mounting plate 1, a carbon fiber nozzle device 2 and a resin nozzle device 3 mounted on the mounting plate 1, the carbon fiber nozzle device is used for molding a carbon fiber sample, and the resin nozzle device is used for molding a peripheral resin structure to surround the carbon fiber sample, the carbon fiber nozzle device 2 comprises a lifting mechanism and a resin nozzle 23 connected with the lifting mechanism, the lifting mechanism is used to drive the resin nozzle to move up and down, and when the carbon fiber nozzle device is in action, the resin nozzle 23 moves upward to avoid interference. Figures 1-4

[0028] The double nozzle device enhances the performance of the molded sample under the condition of increasing size accuracy, and improves the molding freedom and increases the molding object range under the action of the shearing device.

[0029] The resin nozzle device 2 is fixedly installed on one side of the carbon fiber nozzle 3 device, the lifting mechanism comprises a lifting motor module 21, a connecting piece 22 and a resin nozzle 23, the output end of the lifting motor module 21 is connected with the connecting piece 22, the resin nozzle 23 is fixedly connected on the connecting piece 22, and the lifting motor module 21 drives the connecting piece 22 to move up and down, thereby driving the resin nozzle 23 to move up and down.

[0030] The resin nozzle 23 is connected with the lifting motor module 21 through the connecting piece 22, and the up and down movement of the resin nozzle 23 can be realized, which can enhance the molding accuracy of the carbon fiber, when the carbon fiber nozzle 33 device is molding continuous carbon fiber material, the resin nozzle device 2 is lifted to avoid friction with the carbon fiber material, the path arrangement of the fiber material is reduced, and the fiber laying accuracy is improved; when the resin nozzle device 2 is molding resin material, the resin nozzle 23 is lowered to a specified position under the movement of the lifting motor module 21 to realize the molding of the resin material,

[0031] ​Further, the resin nozzle device 2 further comprises a heat dissipation device, which is fixedly installed at the upper end of the resin nozzle 23, and is used for reducing the temperature of the upper end of the resin nozzle 23.

[0032] As a specific embodiment, the heat dissipation device comprises a heat dissipation fin 241 and a heat dissipation fan 242, which is oppositely installed with the heat dissipation fin 241. The heat dissipation fin interacts with the resin nozzle fan to increase the heat dissipation speed, reduce the temperature of the upper end of the resin nozzle 23 to avoid blockage, and ensure the molding conditions.

[0033] The carbon fiber nozzle device 3 comprises a driving wheel device 31, a feeding channel 32 and a carbon fiber nozzle 33. The feeding channel 32 is located directly below the driving wheel device 31, the driving wheel device 31 is used for conveying carbon fiber to the feeding channel 32, the feeding channel 32 extends into the carbon fiber nozzle 33, and the carbon fiber nozzle 33 is used for extruding the carbon fiber into a sample.

[0034] The feeding channel 32 is preferably a Teflon channel. Due to the high temperature resistance and smoothness of the Teflon channel 32, it can ensure smooth feeding of the carbon fiber material during the molding process and reduce the risk of material breakage and blockage.

[0035] The driving wheel device 31 comprises a driving component 311, a driving wheel 312 and a driven wheel 313. The driving component 311 is fixedly installed on the mounting plate 1, the output end of the driving component 311 is connected with the driving wheel 312, and the driving wheel 312 is engaged with the driven wheel 313. The driving component 311 is preferably a motor, which drives the driving wheel 312 to realize the feeding movement of the carbon fiber material, so as to convey the carbon fiber material into the Teflon channel 32. The driving wheel 312 adopts a flexible wheel structure to reduce the damage of the carbon fiber material during feeding.

[0036] The driving wheel device 31 further comprises an adjusting mechanism 34, which is used for adjusting the height position of the driven wheel 313. The adjusting mechanism 34 comprises an adjusting handle 341, an adjusting screw 342, a sliding block 344 and a spring 343. The adjusting handle 341 is fixedly connected with the adjusting screw 342, the spring 343 and the sliding block 344 are sleeved on the adjusting screw 342, rotating the adjusting handle 341 drives the adjusting screw 342 to rotate and in turn drives the sliding block 344 to move, one end of the spring 343 abuts against the sliding block 344, and the other end is fixed. The driven wheel 313 is rotatably installed on the sliding block 344. Through the action of the adjusting mechanism, the feeding action of the driving wheel device 31 on the carbon fiber material can be adjusted to avoid slipping.

[0037] Further, the carbon fiber nozzle device further comprises a heat insulation plate 36 fixedly installed at the upper end of the carbon fiber nozzle 33.

[0038] Further, in order to improve the laying precision of the carbon fiber material, the 3D printing double nozzle device further comprises a carbon fiber shearing device 35 installed on the carbon fiber nozzle device 3 and used for shearing the carbon fiber close to the carbon fiber nozzle 33.

[0039] The carbon fiber shearing device 35 comprises a shearing motor module 351 and a shearing blade 352, the output end of the shearing motor module 351 is fixedly connected with the shearing blade 352 and used for driving the shearing blade 352 to perform a shearing action, the feeding channel 32 comprises a channel upper part and a channel lower part, the channel lower parts are separated, the shearing blade 352 is used for cutting the carbon fiber from the separated position close to the carbon fiber nozzle 33.

[0040] The carbon fiber shearing device 35 is close to the carbon fiber nozzle 33 and belongs to a proximal shearing process, so that the precision in the forming process can be increased.

[0041] The double nozzle device for continuous carbon fiber 3D printing comprises a mounting plate 1, a carbon fiber nozzle device 3 and a resin nozzle device 2 installed on the mounting plate 1, the carbon fiber nozzle device 3 is used for forming a carbon fiber sample, the resin nozzle device 2 is used for forming a peripheral resin structure to surround the carbon fiber sample, the double nozzle device enhances the performance of the formed sample under the condition of increasing the size precision, improves the forming degree of freedom and increases the forming object range.

[0042] The double nozzle device for continuous carbon fiber 3D printing comprises a mounting plate 1, a carbon fiber nozzle device 3 and a resin nozzle device 2 installed on the mounting plate 1, the carbon fiber nozzle device 3 is used for forming a carbon fiber sample, the resin nozzle device 2 is used for forming a peripheral resin structure to surround the carbon fiber sample, the double nozzle device enhances the performance of the formed sample under the condition of increasing the size precision, improves the forming degree of freedom and increases the forming object range.

[0043] It should be finally pointed out that: the above examples are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been explained in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A dual-jet device for continuous carbon fiber 3D printing, characterized in that, The installation plate and the carbon fiber nozzle device and resin nozzle device installed on the installation plate are used to form a carbon fiber sample and a peripheral resin structure surrounding the carbon fiber sample, the carbon fiber nozzle device includes a lifting mechanism and a resin nozzle connected with the lifting mechanism, the lifting mechanism is used to drive the resin nozzle to move up and down, and the resin nozzle moves upward to avoid when the carbon fiber nozzle device operates.

2. The dual-jet device for continuous carbon fiber 3D printing of claim 1, wherein, The resin nozzle device is fixedly installed on one side of the carbon fiber nozzle device, the lifting mechanism includes a lifting motor module, a connecting piece and a resin nozzle, the output end of the lifting motor module is connected with the connecting piece, and the resin nozzle is fixedly connected on the connecting piece, the lifting motor module drives the connecting piece to move up and down, and in turn drives the resin nozzle to move up and down.

3. The dual-jet device for continuous carbon fiber 3D printing of claim 2, wherein, The resin nozzle device further comprises a heat dissipation device, which is fixedly installed on the upper end of the resin nozzle and is used to reduce the temperature of the upper end of the resin nozzle.

4. The dual-jet device for continuous carbon fiber 3D printing of claim 3, wherein, The heat dissipation device comprises a heat dissipation fin and a heat dissipation fan, and the heat dissipation fan is installed opposite to the heat dissipation fin.

5. The dual-jet device for continuous carbon fiber 3D printing of claim 2, wherein, The carbon fiber nozzle device comprises a driving wheel device, a feeding channel and a carbon fiber nozzle, the feeding channel is located directly below the driving wheel device, the driving wheel device is used to deliver carbon fiber to the feeding channel, the feeding channel extends into the carbon fiber nozzle, and the carbon fiber nozzle is used to extrude the carbon fiber into a sample.

6. The dual-jet device for continuous carbon fiber 3D printing according to claim 5, wherein, The driving wheel device comprises a driving component, a driving wheel and a driven wheel, the driving component is fixedly installed on the installation plate, the output end of the driving component is connected with the driving wheel, and the driving wheel is engaged with the driven wheel.

7. The dual-jet device for continuous carbon fiber 3D printing according to claim 6, characterized in that, The driving wheel device further comprises an adjusting mechanism, the adjusting mechanism is used to adjust the height position of the driven wheel, and the adjusting mechanism comprises an adjusting handle, an adjusting screw, a sliding block and a spring, the adjusting handle is fixedly connected with the adjusting screw, the spring and the sliding block are sleeved on the adjusting screw, the adjusting handle is rotated to drive the adjusting screw to rotate and in turn drive the sliding block to move, one end of the spring is abutted with the sliding block, and the other end is fixed, and the driven wheel is rotatably installed on the sliding block.

8. The dual-jet device for continuous carbon fiber 3D printing of claim 4, wherein, The carbon fiber nozzle device further comprises a heat insulation plate, which is fixedly installed on the upper end of the carbon fiber nozzle.

9. The dual-jet device for continuous carbon fiber 3D printing of claim 5, wherein, Further comprising a carbon fiber shearing device, which is installed on the carbon fiber nozzle device and is used to shear the carbon fiber close to the carbon fiber nozzle.

10. The dual-jet device for continuous carbon fiber 3D printing according to claim 9, characterized in that, The carbon fiber shearing device comprises a shearing motor module and a shearing blade, the output end of the shearing motor module is connected with the shearing blade and is used to drive the shearing blade to perform shearing action, the feeding channel comprises an upper channel and a lower channel, the lower channels are separated, the shearing blade is used to cut the carbon fiber from the separated position, and the separated position is close to the carbon fiber nozzle.

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