阅读说明：本技术 一种3d增材运动系统及其方法 (3D additive movement system and method thereof ) 是由 李艳梅 王利萍 陈小童 龙显杏 许伟喜 于 2019-11-29 设计创作，主要内容包括：本发明公开一种3D增材运动系统及其方法,包括打印平台正上方安装有镜像分布沿着X方向移动的X方向滑块,X方向滑块上安装有喷头支架,X方向滑块还支撑盘,喷头支架上固定安装有喷头,喷头内缠绕有电加热丝,支撑盘上端设有卷辊,卷辊上裹卷有纤维复合条；本发明每层打印均采用两个镜像分布的喷头同时向打印中心位置移动,在喷头移动过程中,根据事先设定好的位置进行纤维复合条喷出进行打印,相对于现有,每层均由单个喷头进行打印,提高打印效率。(The invention discloses a 3D material increase movement system and a method thereof, wherein an X-direction sliding block which is distributed in a mirror image mode and moves along the X direction is arranged right above a printing platform, a spray nozzle support is arranged on the X-direction sliding block, a supporting plate is further arranged on the X-direction sliding block, a spray nozzle is fixedly arranged on the spray nozzle support, an electric heating wire is wound in the spray nozzle, a winding roller is arranged at the upper end of the supporting plate, and a fiber composite strip is wound on the winding roller; according to the invention, two nozzles distributed in a mirror image mode are adopted for printing on each layer, the nozzles move towards the printing center at the same time, and the fiber composite strips are sprayed out to be printed according to the preset position in the moving process of the nozzles.)

1. A3D material increase movement system comprises a base (1), wherein bottom end part sliding rails (11) which are symmetrically distributed are arranged at the upper end of the base (1), and a sliding printing platform (12) is mounted on the bottom end part sliding rails (11), and is characterized in that X-direction sliding blocks (2) which are distributed in a mirror image mode and move along the X direction are mounted right above the printing platform (12), spray head supports (20) are mounted right below the X-direction sliding blocks (2), spray heads (21) are fixedly mounted on the spray head supports (20), and electric heating wires are wound in the spray heads (21);

a platform driving motor (13) is mounted on the base (1), a platform driving threaded rod (14) is arranged at the output end of the platform driving motor (13), and the platform driving motor (13) is connected with the platform driving threaded rod (14) in a threaded fit manner;

the upper end of the spray head support (20) is provided with a rotating motor (22), the upper end of the rotating motor (22) is provided with a rotating shaft (23), the upper end of the rotating shaft (23) is provided with a supporting plate (24), the upper end of the supporting plate (24) is provided with winding rollers (25) which are axially distributed, the winding rollers (25) are wrapped with fiber composite strips (3), the supporting plate (24) is provided with through holes (241) which correspond to the winding rollers (25) one by one, the lower end of each through hole (241) is provided with a clamping sleeve (26), and an elastic clamping piece is arranged in each clamping;

the lower end of the supporting disk (24) is provided with telescopic rods (27) which correspond to the clamping sleeves (26) one by one, springs (28) are sleeved on the telescopic rods (27), clamping strips (29) are arranged at the bottom ends of the telescopic rods (27), and arc-shaped elastic pieces (291) which are symmetrically distributed are arranged at one ends of the clamping strips (29);

shower nozzle support (20) upper end is equipped with electronic cylinder supporting shoe (4), be equipped with electronic jar (41) on electronic cylinder supporting shoe (4), the shrink pole top of electronic jar (41) is equipped with extrusion carousel supporting shoe (42), movable groove (421) have been seted up to extrusion carousel supporting shoe (42) one end, extrusion carousel back shaft is installed to movable groove (421) internal rotation, extrusion rotation is gone up fixed mounting and is had extrusion carousel (43) on the back shaft, extrusion carousel back shaft and extrusion carousel driving motor (44) output fixed connection, wherein extrusion carousel driving motor (44) fixed mounting is at extrusion carousel supporting shoe (42) lateral wall.

2. The 3D additive movement system according to claim 1, wherein a scraping bin (5) is installed right below the spray head support (20), and a scraping blade (51) is arranged at the front end of a bin opening of the scraping bin (5).

3. The 3D additive movement system according to claim 2, wherein an electric heating wire is embedded in the scraping bin (5) and melts the residual fiber composite material, a residual liquid storage tank (56) is arranged on the X-direction sliding block (2), the residual liquid storage tank (56) is communicated with the scraping bin (5) through a communicating pipe (57), a high-viscosity pump is arranged in the scraping bin (5), the molten fiber composite material in the scraping bin (5) is pumped into the residual liquid storage tank (56) through the high-viscosity pump, and collection of the residual fiber composite material is completed.

4. The 3D additive material movement system according to claim 3, wherein the upper end of the scraping bin (5) is provided with symmetrically distributed lifting sleeves (52), wherein the spray head bracket (20) is provided with a scraping bin lifting motor (53), the output end of the scraping bin lifting motor (53) is provided with a lifting screw (54), the lifting screw (54) is in threaded fit connection with any one of the lifting sleeves (52), and the lower end of the spray head bracket (20) is provided with a lifting guide post which is in sliding connection with the other lifting sleeve (52).

5. The 3D additive movement system according to claim 4, wherein a Z-axis guide rail (6) is fixedly mounted at the upper end of the printing platform (12), an upper end supporting platform (61) which slides up and down along the Z-axis guide rail (6) is mounted on the Z-axis guide rail (6), a Z-axis driving motor (62) is fixedly mounted at the upper end of the printing platform (12), a Z-axis threaded rod (63) is arranged at the output end of the Z-axis driving motor (62), and the Z-axis threaded rod (63) is connected with the upper end supporting platform (61) in a threaded fit manner.

6. The 3D additive movement system according to claim 5, wherein a Y-axis guide rail (64) is installed at the lower end of the upper end support platform (61), an X-direction support platform (65) which slides along the Y-axis guide rail (64) is installed on the Y-axis guide rail (64), a Y-axis driving motor (66) is fixedly installed at the lower end of the upper end support platform (61), a Y-axis threaded rod (67) is arranged at the output end of the Y-axis driving motor (66), and the Y-axis threaded rod (67) is connected with the X-direction support platform (65) in a threaded fit mode.

7. The 3D additive material movement system according to claim 6, wherein an X-axis guide rail (7) is installed at the lower end of the X-direction supporting platform (65), the X-direction sliding block (2) slides along the X-axis guide rail (7), X-axis driving motors (8) which are symmetrically distributed are fixedly installed at the lower end of the X-direction supporting platform (65), an X-axis threaded rod (81) is arranged at the output end of each X-axis driving motor (8), and the X-axis threaded rods (81) are respectively connected with the corresponding X-direction sliding blocks (2) in a thread fit mode.

8. A3D additive movement system according to claim 7, wherein its method of use, comprises the steps of:

firstly, the Z-axis driving motor (62) drives the upper end supporting platform (61) to move along the Z-axis direction through a Z-axis threaded rod (63), so that the height position of the upper end supporting platform (61) is adjusted, namely the spray head (21) is adjusted to a specified height position;

secondly, the Y-axis driving motor (66) drives the X-direction supporting platform (65) to move along the Y-axis direction through a Y-axis threaded rod (67), so that the Y-direction position of the X-direction supporting platform (65) is adjusted; the X-axis driving motor (8) drives the X-direction sliding block (2) to move along the X-axis direction through the X-axis threaded rod (81), so that the X-direction position of the X-direction sliding block (2) is adjusted, the spray head (21) reaches a specified position, and printing is ready;

thirdly, the fiber composite strips (3) extend into the spray head (21), the fiber composite strips (3) are melted by an electric heating wire, the melted fiber composite strips (3) are sprayed out from the spray head (21) for 3D printing, each layer of printing is carried out by simultaneously moving the spray heads (21) which are distributed in a mirror image manner to a printing center position, and the fiber composite strips (3) are sprayed out for printing according to a preset position in the moving process of the spray heads (21);

fourthly, when the fiber composite strips (3) need to be replaced, a contraction rod of an electric cylinder (41) drives an extrusion turntable supporting block (42) to move to the position right above a spray head (21), meanwhile, a rotating motor (22) drives a supporting disc (24) to rotate through a rotating shaft (23), so that the front ends of the fiber composite strips (3) corresponding to a target winding roller (25) are positioned right above the spray head (21), when the extrusion turntable supporting block (42) and the arc elastic sheets (291) are positioned right above the spray head (21), the extrusion turntable supporting block (42) extrudes the arc elastic sheets (291), so that the arc elastic sheets (291) are opened, the arc elastic sheets (291) loosen the fiber composite strips (3) between the extrusion turntable (43), the extrusion turntable (3) extrudes the fiber composite strips at the moment, the extrusion turntable driving motor (44) is started, and the extrusion turntable driving motor (44) drives the extrusion turntable (43) to rotate, the extrusion turntable (43) enables the fiber composite strips (3) to extend downwards at a uniform speed through friction force, when the fiber composite strips (3) extend into the spray head (21), the fiber composite strips (3) are melted by an electric heating wire, the melted fiber composite strips (3) are sprayed out from the spray head (21) for 3D printing, and the uniform speed downward extension of the fiber composite strips (3) is realized, namely the amount of the melted fiber composite strips (3) sprayed out by the spray head (21) in unit time is constant, so that the uniform spraying of the spray head (21) is realized;

fifthly, in the 3D printing process, scraping by a scraper (51) to enable the printing layer to be in a set value, and enabling the scraped fiber composite material to enter a scraping bin (5);

sixthly, melting the residual fiber composite material by an electric heating wire in the scraping bin (5), pumping the molten fiber composite material in the scraping bin (5) into a residual liquid storage tank (56) by a high-viscosity pump, and collecting the residual fiber composite material;

and seventhly, when the spray head (21) does not need to spray out the melted fiber composite strips (3), closing the spray head (21) and the extrusion turntable driving motor (44) to stop spraying out the spray head (21).

Technical Field

The invention belongs to the field of 3D additive printing, and particularly relates to a 3D additive movement system and a method thereof.

Background

The additive manufacturing technology (also called 3D printing technology) has been rapidly developed in recent years, and can be classified into: selective laser sintering (SLS, SLM), laser Stereolithography (SLA), laser digital processing (DLP), fuse deposition process (FDM), etc. Among a plurality of additive manufacturing and forming processes, the fuse deposition process is popular with users because of the characteristics of low wire cost and simple equipment principle, and the printer of the existing fuse deposition process is applied in the fields of medical sanitation, animation creation, mold design and the like. With the in-depth knowledge of the fuse deposition process, higher requirements are also put on the process, such as: higher molding efficiency, etc.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a 3D additive movement system and a method thereof, and solves the problem of low forming efficiency of 3D additive movement in the prior art.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a 3D vibration material disk motion system, includes the base, and the base upper end is equipped with the bottom portion slide rail of symmetric distribution, installs gliding print platform on the slide rail of bottom portion, install the X direction slider that the mirror image distributes and remove along the X direction directly over the print platform, all install the shower nozzle support under the X direction slider, fixed mounting has the shower nozzle on the shower nozzle support, and the winding has electric heating wire in the shower nozzle.

Install platform driving motor on the base, platform driving motor output is equipped with platform drive threaded rod, wherein passes through screw-thread fit connection between platform driving motor and the platform drive threaded rod.

The utility model discloses a shower nozzle support, including shower nozzle support, rotating electrical machines, supporting disk, the supporting disk upper end is equipped with the rotating electrical machines, and the rotating electrical machines upper end is equipped with the rotation axis, and the rotation axis upper end is equipped with the supporting disk, and the supporting disk upper end is equipped with the winding up roller that the axial distributes, and the last parcel of winding up roller has the compound strip of fibre, has seted up on the supporting disk with the winding up roller one-.

The supporting disk lower extreme is equipped with and presss from both sides the cover one-to-one telescopic link, and the cover is equipped with the spring on the telescopic link, and the telescopic link bottom is equipped with the holding strip, and holding strip one end is equipped with the arc flexure strip of symmetric distribution.

The utility model discloses a shower nozzle support, including shower nozzle support, electronic jar support, extrusion carousel back shaft, extrusion carousel drive motor output fixed connection, wherein extrusion carousel drive motor fixed mounting is at extrusion carousel supporting shoe lateral wall, the shower nozzle support upper end is equipped with electronic jar supporting shoe, is equipped with electronic jar on the electronic jar supporting shoe, and the telescopic link top of electronic jar is equipped with extrusion carousel supporting shoe, and extrusion carousel supporting shoe one end has been seted up movable groove, and the extrusion carousel back shaft is installed to the movable groove internal rotation, and fixed mounting has the extrusion carousel on the.

Furthermore, a scraping bin is installed under the spray head support, and a scraper is arranged at the front end of a bin opening of the scraping bin.

Further, scrape and to inlay electric heating wire in getting the storehouse in the compression, electric heating wire melts surplus fiber composite, is equipped with the surplus liquid storage pot on the X direction slider, the surplus liquid storage pot with scrape and get between the storehouse through communicating pipe intercommunication, scrape and get and be equipped with the high viscosity pump in the storehouse, will scrape through the high viscosity pump and get the interior fiber composite who melts of storehouse and pump to the surplus liquid storage pot in, accomplish and collect surplus fiber composite.

Furthermore, the upper end of the scraping bin is provided with symmetrically distributed lifting sleeves, the spray head support is provided with a scraping bin lifting motor, the output end of the scraping bin lifting motor is provided with a lifting screw rod, the lifting screw rod is connected with any lifting sleeve in a threaded fit mode, the lower end of the spray head support is provided with a lifting guide pillar, and the lifting guide pillar is connected with another lifting sleeve in a sliding mode.

Further, printing platform upper end fixed mounting has the Z axle guide rail, installs gliding upper end supporting platform from top to bottom along the Z axle guide rail on the Z axle guide rail, and printing platform upper end fixed mounting has Z axle driving motor simultaneously, and Z axle driving motor output is equipped with the Z axle threaded rod, and the Z axle threaded rod passes through screw-thread fit with upper end supporting platform and is connected.

Furthermore, the Y-axis guide rail is installed to upper end supporting platform lower extreme, installs on the Y-axis guide rail along the gliding X direction supporting platform of Y-axis guide rail, and upper end supporting platform lower extreme fixed mounting has Y axle driving motor simultaneously, and Y axle driving motor output is equipped with the Y axle threaded rod, and the Y axle threaded rod passes through screw-thread fit with X direction supporting platform and is connected.

Furthermore, an X-axis guide rail is installed at the lower end of the X-direction supporting platform, an X-direction sliding block slides along the X-axis guide rail, X-axis driving motors which are symmetrically distributed are fixedly installed at the lower end of the X-direction supporting platform, an X-axis threaded rod is arranged at the output end of each X-axis driving motor, and the X-axis threaded rods are respectively connected with the corresponding X-direction sliding blocks in a threaded fit mode.

A 3D additive motion system, method of use thereof, comprising the steps of:

firstly, the Z-axis driving motor drives the upper end supporting platform to move along the Z-axis direction through a Z-axis threaded rod, so that the height position of the upper end supporting platform is adjusted, namely the spray head is adjusted to a specified height position;

secondly, the Y-axis driving motor drives the X-direction supporting platform to move along the Y-axis direction through the Y-axis threaded rod, so that the Y-direction position of the X-direction supporting platform is adjusted; the X-axis driving motor drives the X-direction sliding block to move along the X-axis direction through the X-axis threaded rod, so that the X-direction position of the X-direction sliding block is adjusted, the spray head reaches a specified position, and printing is prepared;

thirdly, the fiber composite strips extend into the spray head, the electrical heating wire melts the fiber composite strips, the melted fiber composite strips are sprayed out from the spray head for 3D printing, each layer of printing adopts two spray heads distributed in a mirror image mode to move towards the printing center, and the fiber composite strips are sprayed out for printing according to the preset position in the moving process of the spray heads;

fourthly, when the fiber composite strips need to be replaced, a contraction rod of the electric cylinder drives an extrusion turntable supporting block to move to a position right above a spray head, meanwhile, a rotating motor drives a supporting plate to rotate through a rotating shaft, the front end of the fiber composite strip corresponding to a target winding roller is positioned right above the spray head, the extrusion turntable supporting block and the arc elastic sheet are positioned right above the spray head, the extrusion turntable supporting block extrudes the arc elastic sheet to expand the arc elastic sheet, the arc elastic sheet relaxes the fiber composite strips between the arc elastic sheet and the extrusion turntable, the extrusion turntable extrudes the fiber composite strips during the period, the extrusion turntable driving motor is started at the moment, the extrusion turntable driving motor drives the extrusion turntable to rotate, the extrusion turntable enables the fiber composite strips to uniformly extend downwards through friction force, when the fiber composite strips extend to the interior of the spray head, the electrical heating wire melts the fiber composite strips, and the melted fiber composite strips are sprayed, 3D printing is carried out, and the fiber composite strips extend downwards at a uniform speed, namely the amount of the melted fiber composite strips sprayed out by the spray head in unit time is constant, so that the uniform spraying of the spray head is realized;

fifthly, scraping by a scraper in the 3D printing process to enable the printing layer to be in a set value, and enabling the scraped fiber composite material to enter a scraping bin;

sixthly, melting the residual fiber composite material by using an electric heating wire in the scraping bin, pumping the molten fiber composite material in the scraping bin into a residual liquid storage tank by using a high-viscosity pump, and collecting the residual fiber composite material;

and seventhly, when the spray head does not need to spray and melt the fiber composite strips, closing the spray head and extruding the rotary table driving motor to stop spraying.

The invention has the beneficial effects that:

1. according to the invention, two nozzles distributed in a mirror image mode are adopted for printing on each layer and move towards the printing center at the same time, and in the moving process of the nozzles, the fiber composite strips are sprayed out according to the preset position for printing, so that compared with the prior art, each layer is printed by a single nozzle, and the forming efficiency is improved;

2. according to the invention, the plurality of winding rollers are arranged on the supporting plate, so that the fiber composite strips wrapped among the plurality of winding rollers are not limited to the same type of fiber composite strips, if the same type of fiber composite strips wrapped among the plurality of winding rollers are used as the fiber composite strips, the same type of fiber composite strips can be supplemented in the printing process, and if different types of fiber composite strips wrapped among the plurality of winding rollers are used as the fiber composite strips, the different types of fiber composite strips can be switched according to actual printing requirements in the printing process, so that multi-material printing is realized.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic diagram of a structure with different viewing angles according to an embodiment of the present invention;

FIG. 3 is a schematic partial structure diagram of an embodiment of the present invention;

FIG. 4 is a schematic partial structure diagram of an embodiment of the present invention;

fig. 5 is an enlarged schematic view of the structure at a in the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 4, a 3D additive movement system includes a base 1, wherein the upper end of the base 1 is provided with symmetrically distributed bottom end sliding rails 11, a sliding printing platform 12 is installed on the bottom end sliding rails 11, X-direction sliding blocks 2 moving along the X direction in a mirror image distribution manner are installed right above the printing platform 12, nozzle supports 20 are installed right below the X-direction sliding blocks 2, nozzles 21 are fixedly installed on the nozzle supports 20, and electric heating wires are wound in the nozzles 21; when the device is used, when the fiber composite strips 3 extend into the spray head 21, the electrical heating wires melt the fiber composite strips 3, the melted fiber composite strips 3 are sprayed out from the spray head 21 to perform 3D printing, each layer of printing of the device adopts two spray heads 21 distributed in a mirror image mode to move towards the printing center position, the fiber composite strips 3 are sprayed out according to the preset position to perform printing in the moving process of the spray head 21, and each layer of printing is performed by a single spray head 21 compared with the prior art, so that the printing efficiency is improved.

A platform driving motor 13 is installed on the base 1, a platform driving threaded rod 14 is arranged at the output end of the platform driving motor 13, and the platform driving motor 13 is connected with the platform driving threaded rod 14 in a threaded fit manner; when the device is used, the platform driving motor 13 drives the platform driving threaded rod 14 to rotate, the printing platform 12 is driven to move, and the position of the printing platform 12 is adjusted.

The upper end of the spray head support 20 is provided with a rotating motor 22, the upper end of the rotating motor 22 is provided with a rotating shaft 23, the upper end of the rotating shaft 23 is provided with a supporting plate 24, the upper end of the supporting plate 24 is provided with a winding roller 25 which is axially distributed, the winding roller 25 is wrapped with the fiber composite strips 3, the supporting plate 24 is provided with through holes 241 which correspond to the winding roller 25 one by one, the lower end of each through hole 241 is provided with a clamping sleeve 26, and an elastic clamping piece is arranged in each.

During the use, compound strip 3 of fibre on the winding up roller 25 passes perforation 241, the elasticity card has certain clamping force to compound strip 3 of fibre, because be equipped with a plurality of winding up rollers 25 on the supporting disk 24, the compound strip 3 of fibre of wrapping up in between a plurality of winding up rollers 25 this moment is not restricted to same type fibre compound strip 3, if wrap up in same type fibre compound strip 3 of rolling up between a plurality of winding up rollers 25, can understand as printing the in-process, same type fibre compound strip 3 supplements, if wrap up in the compound strip 3 of different type fibre of rolling up between a plurality of winding up rollers 25, can understand as printing the in-process, switch different type fibre compound strip 3 according to actual printing demand, realize the printing of many materials.

The supporting disk 24 lower extreme is equipped with and presss from both sides the one-to-one correspondence telescopic link 27 of cover 26, the cover is equipped with spring 28 on the telescopic link 27, telescopic link 27 bottom is equipped with holding strip 29, holding strip 29 one end is equipped with the arc elastic piece 291 of symmetric distribution, when not receiving the exogenic action, the arc elastic piece 291 of symmetric distribution will stretch into to the 3 front ends of the compound strip of fibre between the arc elastic piece 291 and carry out the centre gripping, because spring 28 tension effect, make the compound strip of fibre 3 that is in between arc elastic piece 291 and the clamp sleeve 26 be in the state of stretching straight.

As shown in fig. 5, the arc-shaped elastic pieces 291 form a trumpet-shaped opening therebetween, and when an external force presses the arc-shaped elastic pieces 291, the arc-shaped elastic pieces 291 open to both outer sides, so that the arc-shaped elastic pieces 291 loosen the fiber composite strips 3 therebetween.

Shower nozzle support 20 upper end is equipped with electronic jar supporting shoe 4, be equipped with electronic jar 41 on the electronic jar supporting shoe 4, electronic jar 41 shrink pole top is equipped with extrusion carousel supporting shoe 42, movable groove 421 has been seted up to extrusion carousel supporting shoe 42 one end, extrusion carousel back shaft is installed to the rotation of movable groove 421, fixed mounting has extrusion carousel 43 on the extrusion rotation back shaft, extrusion carousel back shaft and extrusion carousel driving motor 44 output fixed connection, wherein extrusion carousel driving motor 44 fixed mounting is at extrusion carousel supporting shoe 42 lateral wall.

When the device is used, the contraction rod of the electric cylinder 41 drives the extrusion turntable supporting block 42 to move to the position right above the spray head 21, meanwhile, the rotating motor 22 drives the supporting plate 24 to rotate through the rotating shaft 23, so that the front end of the fiber composite strip 3 corresponding to the target winding roller 25 is positioned right above the spray head 21, namely, when the extrusion turntable supporting block 42 and the arc elastic piece 291 are positioned right above the spray head 21, the extrusion turntable supporting block 42 extrudes the arc elastic piece 291, so that the arc elastic piece 291 is opened, at the moment, the fiber composite strip 3 between the arc elastic pieces 291 is loosened, during the period, the extrusion turntable 43 extrudes the fiber composite strip 3, at the moment, the extrusion turntable driving motor 44 is started, the extrusion turntable driving motor 44 drives the extrusion turntable 43 to rotate, the extrusion turntable 43 enables the fiber composite strip 3 to uniformly extend downwards through friction force, when the fiber composite strip 3 extends to the interior of the spray head 21, the electric, the melted fiber composite strips 3 are sprayed out from the spray head 21 for 3D printing, and the uniform speed downward extension of the fiber composite strips 3 is realized, namely the amount of the melted fiber composite strips 3 sprayed out by the spray head 21 in unit time is constant, namely the uniform spraying of the spray head 21 is realized; when the spray head 21 does not need to spray out the melted fiber composite strips 3, the spray head 21 is closed and the extrusion turntable driving motor 44 is closed, so that the spray head 21 stops spraying out.

Install under shower nozzle support 20 and scrape and get storehouse 5, scrape and get 5 cang kou front end in storehouse and be equipped with scraper 51, printing the in-process carrying out 3D, because shower nozzle 21 is in the lackluster or scribbles and spout inhomogeneously, and when producing to print the layer and appear unnecessary surplus allowance, when printing layer model height and be greater than the setting value promptly, strike off through scraper 51, make and print the layer and be in the setting value, the surplus fibre combined material who strikes off gets into to scraping and gets 5 in.

The upper end of the scraping bin 5 is provided with symmetrically distributed lifting sleeves 52, wherein the spray head bracket 20 is provided with a scraping bin lifting motor 53, the output end of the scraping bin lifting motor 53 is provided with a lifting screw 54, the lifting screw 54 is in threaded fit connection with any lifting sleeve 52, and the lower end of the spray head bracket 20 is provided with a lifting guide post which is in sliding connection with the other lifting sleeve 52; when the scraping bin lifting motor 53 is used, the lifting screw 54 is driven to rotate by the scraping bin lifting motor, the scraping bin 5 is driven to be adjusted in height up and down, and the height of the scraping bin 5 is set.

Scrape and get and inlay electric heating wire in the storehouse 5, electric heating wire melts surplus fibre combined material, is equipped with surplus liquid storage pot 56 on the X direction slider 2, surplus liquid storage pot 56 with scrape and get through communicating pipe 57 intercommunication between the storehouse 5, scrape and be equipped with the high viscosity pump in getting the storehouse 5, will scrape through the high viscosity pump and get the fibre combined material that melts in the storehouse 5 and pump to the surplus liquid storage pot 56 in, the completion is collected surplus fibre combined material.

As shown in fig. 2 and 3, a Z-axis guide rail 6 is fixedly mounted at the upper end of the printing platform 12, an upper end supporting platform 61 which slides up and down along the Z-axis guide rail 6 is mounted on the Z-axis guide rail 6, a Z-axis driving motor 62 is fixedly mounted at the upper end of the printing platform 12, a Z-axis threaded rod 63 is arranged at the output end of the Z-axis driving motor 62, and the Z-axis threaded rod 63 is connected with the upper end supporting platform 61 through thread matching; during the use, Z axle driving motor 62 passes through Z axle threaded rod 63 drive upper end supporting platform 61 and moves along Z axle direction, realizes upper end supporting platform 61 height position control.

A Y-axis guide rail 64 is arranged at the lower end of the upper end supporting platform 61, an X-direction supporting platform 65 sliding along the Y-axis guide rail 64 is arranged on the Y-axis guide rail 64, a Y-axis driving motor 66 is fixedly arranged at the lower end of the upper end supporting platform 61, a Y-axis threaded rod 67 is arranged at the output end of the Y-axis driving motor 66, and the Y-axis threaded rod 67 is connected with the X-direction supporting platform 65 in a threaded fit manner; when the X-axis position adjusting device is used, the Y-axis driving motor 66 drives the X-direction supporting platform 65 to move along the Y-axis direction through the Y-axis threaded rod 67, and Y-direction position adjustment of the X-direction supporting platform 65 is achieved.

An X-axis guide rail 7 is installed at the lower end of the X-direction supporting platform 65, the X-direction sliding block 2 slides along the X-axis guide rail 7, X-axis driving motors 8 which are symmetrically distributed are fixedly installed at the lower end of the X-direction supporting platform 65, an X-axis threaded rod 81 is arranged at the output end of each X-axis driving motor 8, and the X-axis threaded rods 81 are respectively connected with the corresponding X-direction sliding blocks 2 in a threaded fit mode; when the X-axis slide block is used, the X-axis drive motor 8 is independently driven, the X-axis drive motor 8 drives the X-direction slide block 2 to move along the X-axis direction through the X-axis threaded rod 81, and the X-direction position adjustment of the X-direction slide block 2 is realized.

A method of using a 3D additive motion system, comprising the steps of:

firstly, a Z-axis driving motor 62 drives an upper end supporting platform 61 to move along the Z-axis direction through a Z-axis threaded rod 63, so that the height position of the upper end supporting platform 61 is adjusted, namely the spray head 21 is adjusted to a specified height position;

secondly, driving the X-direction supporting platform 65 to move along the Y-axis direction by a Y-axis driving motor 66 through a Y-axis threaded rod 67, so as to realize Y-direction position adjustment of the X-direction supporting platform 65; the X-axis driving motor 8 drives the X-direction sliding block 2 to move along the X-axis direction through the X-axis threaded rod 81, so that the X-direction position of the X-direction sliding block 2 is adjusted, the spray head 21 reaches a specified position, and printing is ready to be carried out;

thirdly, the fiber composite strips 3 extend into the spray head 21, the electrical heating wire melts the fiber composite strips 3, the melted fiber composite strips 3 are sprayed out from the spray head 21 for 3D printing, each layer of printing adopts two spray heads 21 distributed in a mirror image mode to simultaneously move to a printing center position, and the fiber composite strips 3 are sprayed out for printing according to a preset position in the moving process of the spray heads 21;

fourthly, when the fiber composite strips 3 need to be replaced, the contraction rod of the electric cylinder 41 drives the extrusion turntable supporting block 42 to move to the position right above the spray head 21, meanwhile, the rotating motor 22 drives the supporting disc 24 to rotate through the rotating shaft 23, so that the front ends of the fiber composite strips 3 corresponding to the target winding roller 25 are positioned right above the spray head 21, when the extrusion turntable supporting block 42 and the arc elastic pieces 291 are positioned right above the spray head 21, the extrusion turntable supporting block 42 extrudes the arc elastic pieces 291, the arc elastic pieces 291 are opened, the fiber composite strips 3 between the arc elastic pieces 291 are loosened, during the period, the extrusion turntable 43 extrudes the fiber composite strips 3, at the moment, the extrusion turntable driving motor 44 is started, the extrusion turntable driving motor 44 drives the extrusion turntable 43 to rotate, the extrusion turntable 43 enables the fiber composite strips 3 to uniformly extend downwards through friction force, and when the fiber composite strips 3 extend to the interior of the spray head 21, the electric heating wire melts the fiber composite strips 3, the melted fiber composite strips 3 are sprayed out from the spray head 21 for 3D printing, and the uniform speed downward extension of the fiber composite strips 3 is realized, namely, the amount of the melted fiber composite strips 3 sprayed out by the spray head 21 in unit time is certain, so that the uniform spraying of the spray head 21 is realized;

fifthly, in the 3D printing process, scraping by a scraper 51 to enable the printing layer to be in a set value, and enabling the scraped fiber composite material to enter a scraping bin 5;

sixthly, melting the residual fiber composite material by an electric heating wire in the scraping bin 5, pumping the molten fiber composite material in the scraping bin 5 into the residual liquid storage tank 56 by a high-viscosity pump, and collecting the residual fiber composite material;

and seventhly, when the spray head 21 does not need to spray and melt the fiber composite strips 3, closing the spray head 21 and the extrusion turntable driving motor 44 to stop spraying of the spray head 21.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.