阅读说明：本技术 自动化流水线3d打印机及打印方法 (Automatic assembly line 3D printer and printing method ) 是由 董汇丰 闵建飞 章锦晶 李健喆 邓业民 杨相茹 封华 于 2020-12-31 设计创作，主要内容包括：本申请公开了一种自动化流水线3D打印机及打印方法,该自动化流水线3D打印机包括：固定架、3D打印机模组和传送系统；其中,所述3D打印机模组设于所述固定架上,3D打印机模组设置为N个并沿所述传送系统的输送方向布置,N为大于1的整数；所述传送系统上沿输送方向至少设置有N+1个打印平台,所述打印平台与所述传送系统可分离设置；所述打印机还包括用于控制所述打印平台升降并将打印平台固定在传送系统上方的升降固定组件,所述传送系统设为双向输送。本申请解决了相关技术中的3D打印机的打印效率较低,无法满足使用需求的问题。(The application discloses automatic assembly line 3D printer and printing method, this automatic assembly line 3D printer includes: the device comprises a fixing frame, a 3D printer module and a transmission system; the 3D printer modules are arranged on the fixing frame, the number of the 3D printer modules is N, the 3D printer modules are arranged along the conveying direction of the conveying system, and N is an integer greater than 1; the conveying system is at least provided with N +1 printing platforms along the conveying direction, and the printing platforms and the conveying system can be arranged in a separable mode; the printer further comprises a lifting fixing assembly used for controlling the printing platform to lift and fixing the printing platform above the conveying system, and the conveying system is set to be capable of conveying in two directions. The 3D printer that this application had solved among the correlation technique prints efficiency lower, can't satisfy user demand's problem.)

1. An automated pipeline 3D printer, comprising: the device comprises a fixing frame, a 3D printer module and a transmission system; wherein the content of the first and second substances,

the 3D printer modules are arranged on the fixing frame, the number of the 3D printer modules is N, the 3D printer modules are arranged along the conveying direction of the conveying system, and N is an integer greater than 1;

the conveying system is at least provided with N +1 printing platforms along the conveying direction, and the printing platforms and the conveying system can be arranged in a separable mode;

the printer further comprises a lifting fixing assembly used for controlling the printing platform to lift and fixing the printing platform above the conveying system, and the conveying system is set to be capable of conveying in two directions.

2. The automated pipeline 3D printer of claim 1, wherein the lifting fixing assembly comprises a lifting mechanism for controlling the printing platform to lift and a fixing mechanism for fixing the printing platform after the printing platform is lifted.

3. The automated pipeline 3D printer of claim 2, wherein the conveying system is configured as a double speed chain conveyor, the double speed chain conveyor passes through the fixed frame, and the 3D printer module is fixed on the fixed frame and located above the double speed chain conveyor.

4. The automatic assembly line 3D printer of claim 3, wherein the lifting mechanism corresponds to the 3D printer module, the lifting mechanism comprises a jacking mechanism arranged below the speed chain conveying device and a jacking platform arranged at an output end of the jacking mechanism, and the printing platform is arranged above the jacking platform.

5. The automatic assembly line 3D printer of claim 4, wherein the lifting mechanism further comprises a guide plate and guide shafts distributed around the guide plate, a first end of each guide shaft penetrates through the guide plate in a sliding mode, and a second end of each guide shaft is fixedly connected with the jacking platform.

6. The automated pipeline 3D printer of claim 3, wherein the fixing mechanisms are arranged at the upper part of the fixing frame and are positioned at two opposite sides of the fixing frame, and two fixing mechanisms are arranged at each side;

the fixing mechanism comprises a rotating mechanism fixed on the fixing frame, the output end of the rotating mechanism faces downwards vertically and is provided with a bearing piece, and the bearing piece is arranged along the horizontal direction.

7. The automated pipeline 3D printer of claim 1, wherein the 3D printer module comprises a horizontal motion device, a vertical motion device, and a consumable extrusion device; wherein the content of the first and second substances,

the consumable extrusion device is fixed on the vertical movement device, the vertical movement device is fixed on the horizontal movement device, and the horizontal movement device is fixed on the fixed frame.

8. The automated in-line 3D printer of claim 7, wherein the consumable extrusion device comprises: the extruder, the rotating mechanism and the rotary driving mechanism; wherein the content of the first and second substances,

the rotating mechanism can rotate around a horizontal shaft, the first end of the rotating mechanism is in transmission connection with the extruder, and the second end of the rotating mechanism is in transmission connection with the rotating driving mechanism.

9. The automatic assembly line 3D printer according to claim 3, further comprising a material receiving device and a scraper fixed on the fixing frame, wherein the scraper is located above the speed-multiplying chain conveying device, the scraper is arranged perpendicular to the conveying direction of the speed-multiplying chain conveying device, and the scraper and the upper surface of the printing platform are located on the same horizontal plane;

the material receiving device is positioned below the speed multiplying chain conveying device and used for receiving the model scraped from the printing platform by the scraper.

10. A method of 3D printing, using an automated pipeline 3D printer according to any one of claims 1 to 9 and comprising the steps of:

(1) dividing the printing model into N parts with the same number as that of the 3D printer modules;

(2) placing N +1 printing platforms on a conveying system one by one;

(3) the control transmission system sequentially conveys the first printing platform to the printing stations of the first to Nth 3D printer modules, and the printing of the corresponding part of the printing model is completed by lifting and fixing the printing platform on each printing station through the lifting fixing assembly;

(4) in the process, the conveying system is controlled to convey the second printing platform to the Nth printing platform to the printing stations of the first to Nth 3D printer modules in sequence, and the printing of the printing models of the corresponding parts is completed by lifting and fixing the printing platforms on the printing stations through the lifting fixing assemblies;

(5) the control transmission system conveys the first printing platform to an unloading station for unloading the printing model, and simultaneously conveys the (N + 1) th printing platform to a printing station of the first 3D printer module for printing the first part of the printing model;

(6) when the second printing platform to the (N + 1) th printing platform are in the printing process, controlling the conveying system to reversely rotate and conveying the unloaded first printing platform to the initial position;

(7) and (4) repeating the step (3), sequentially unloading the printing models from the second printing platform to the (N + 1) th printing platform in the process, and controlling the conveying system to reversely rotate in the unloading process to convey the corresponding printing platforms to the initial positions for second-round printing.

Technical Field

The application relates to the field of 3D printing, in particular to an automatic assembly line 3D printer and a printing method.

Background

The 3D printer is applied to industries such as art creativity, education, jewelry, medical treatment and the like. The ubiquitous printing efficiency is low among the present monomer 3D printer, prints the single problem of model colour. After the printing of the single printer is finished, manual materials need to be taken in time, automation cannot be realized, and the efficiency problem cannot be solved; the method for solving the problem of single color of the printing model is to increase the number of extrusion heads, and due to the limitation of the equipment structure, the method is commonly used for double extrusion heads at present, namely double-color printing; it is clear that two-color printing is not able to meet the ever-increasing 3D printing requirements.

In order to solve the above problems, the related art provides a multi-station type 3D printer, which prints different parts of a model by printers at different stations, thereby improving printing efficiency, but in the printing process of the 3D printer, a printing platform is placed on a conveyor belt for printing, so that the printing platform participating in printing can be put into the next round of printing after the model printing is completed by all the printing platforms, for example, in the related art, a set of multi-station type 3D printer is formed by 5 printing platforms and 5 3D printers, because the printing platforms print on the conveyor belt, after the printing of the whole model is completed by a first printing platform, the whole body can be reversely conveyed to a starting position by the conveyor belt for the next round of printing after the remaining 4 printing platforms are completely completed, and in the printing process, part of the 3D printer is in a long-time shutdown state, resulting in the overall printing efficiency still being inadequate.

The problem that the printing efficiency of the 3D printer in the correlation technique is lower and the use requirement cannot be met is solved.

Disclosure of Invention

The application mainly aims to provide an automatic assembly line 3D printer and a printing method, so that the problems that the printing efficiency of the 3D printer in the related technology is low and the use requirement cannot be met are solved.

In order to achieve the above object, the present application provides an automated pipeline 3D printer, including: the device comprises a fixing frame, a 3D printer module and a transmission system; the 3D printer modules are arranged on the fixing frame, the number of the 3D printer modules is N, the 3D printer modules are arranged along the conveying direction of the conveying system, and N is an integer greater than 1; the conveying system is at least provided with N +1 printing platforms along the conveying direction, and the printing platforms and the conveying system can be arranged in a separable mode; the printer further comprises a lifting fixing assembly used for controlling the printing platform to lift and fixing the printing platform above the conveying system, and the conveying system is set to be capable of conveying in two directions.

Further, the lifting fixing assembly comprises a lifting mechanism for controlling the printing platform to lift and a fixing mechanism for fixing the printing platform after the printing platform rises.

Further, the conveying system is provided with a speed-multiplying chain conveying device, the speed-multiplying chain conveying device penetrates through the fixed frame, and the 3D printer module is fixedly arranged on the fixed frame and located above the speed-multiplying chain conveying device.

Further, elevating system with 3D printer module corresponds, elevating system is including locating the climbing mechanism of doubly fast chain conveyor below and locating the jacking platform of climbing mechanism output, print platform is located the jacking platform top.

Furthermore, elevating system still includes the deflector and distributes deflector guide shaft all around, the first end of guide shaft slides and runs through the deflector, the second end with jacking platform fixed connection.

Further, the guide plate is fixed on the lower part of the fixing frame.

Furthermore, the fixing mechanisms are arranged at the upper part of the fixing frame and positioned at two opposite sides of the fixing frame, and two fixing mechanisms are arranged at each side; the fixing mechanism comprises a rotating mechanism fixed on the fixing frame, the output end of the rotating mechanism faces downwards vertically and is provided with a bearing piece, and the bearing piece is arranged along the horizontal direction.

Furthermore, rotary mechanism is including fixing fixed plate on the mount, the fixed plate lower extreme is provided with the motor perpendicularly, the output of motor down and with hold carrier transmission connection.

Further, hold carrier and include the fixture block that the level set up, the first end of fixture block with the output transmission of motor is connected, and the second end is provided with the bracing piece perpendicularly.

Furthermore, the supporting rod is in threaded connection with the clamping block and is locked through a nut, so that the supporting height of the supporting rod is adjustable.

Furthermore, the lower extreme of fixed plate still is provided with the gag lever post perpendicularly, the gag lever post with the bracing piece corresponds from top to bottom, and has fixed interval between the two, fixed interval with print platform's high matching.

Furthermore, positioning holes are formed in the periphery of the printing platform, and positioning pins corresponding to the positioning holes are further arranged on the upper portion of the fixing frame.

Further, the 3D printer module comprises a horizontal movement device, a vertical movement device and a consumable extrusion device; the consumable extrusion device is fixed on the vertical movement device, the vertical movement device is fixed on the horizontal movement device, and the horizontal movement device is fixed on the fixing frame.

Further, the consumable extrusion apparatus comprises: the extruder, the rotating mechanism and the rotary driving mechanism; the rotating mechanism can rotate around a horizontal shaft, the first end of the rotating mechanism is in transmission connection with the extruder, and the second end of the rotating mechanism is in transmission connection with the rotating driving mechanism.

The printer further comprises a material receiving device and a scraper fixed on the fixing frame, wherein the scraper is positioned above the speed-multiplying chain conveying device and is perpendicular to the conveying direction of the speed-multiplying chain conveying device, and the scraper and the upper surface of the printing platform are positioned on the same horizontal plane; the material receiving device is positioned below the speed multiplying chain conveying device and used for receiving the model scraped from the printing platform by the scraper.

According to another aspect of the application, there is provided a 3D printing method using an automated pipeline 3D printer and comprising the steps of:

(1) dividing the printing model into N parts with the same number as that of the 3D printer modules;

(2) placing N +1 printing platforms on a conveying system one by one;

(3) the control transmission system sequentially conveys the first printing platform to the printing stations of the first to Nth 3D printer modules, and the printing of the corresponding part of the printing model is completed by lifting and fixing the printing platform on each printing station through the lifting fixing assembly;

(4) in the process, the conveying system is controlled to convey the second printing platform to the Nth printing platform to the printing stations of the first to Nth 3D printer modules in sequence, and the printing of the printing models of the corresponding parts is completed by lifting and fixing the printing platforms on the printing stations through the lifting fixing assemblies;

(5) the control transmission system conveys the first printing platform to an unloading station for unloading the printing model, and simultaneously conveys the (N + 1) th printing platform to a printing station of the first 3D printer module for printing the first part of the printing model;

(6) when the second printing platform to the (N + 1) th printing platform are in the printing process, controlling the conveying system to reversely rotate and conveying the unloaded first printing platform to the initial position;

(7) and (4) repeating the step (3), sequentially unloading the printing models from the second printing platform to the (N + 1) th printing platform in the process, and controlling the conveying system to reversely rotate in the unloading process to convey the corresponding printing platforms to the initial positions for second-round printing.

In the embodiment of the application, a fixing frame, a 3D printer module and a transmission system are arranged; the 3D printer modules are arranged on the fixing frame, the number of the 3D printer modules is N, the 3D printer modules are arranged along the conveying direction of the conveying system, and N is an integer greater than 1; the conveying system is at least provided with N +1 printing platforms along the conveying direction, and the printing platforms and the conveying system can be arranged in a separable mode; the printer is still including being used for control print platform goes up and down and fixes the fixed subassembly of lift above transfer system with print platform, transfer system establishes to two-way transport, has reached to rise fixedly with print platform and has printed for the print platform who accomplishes the model printing can be carried to the initial position by the transfer system of reversal and carries out the purpose that the second round printed, thereby has realized the technological effect who improves the printing speed and the efficiency of 3D printer, and then has solved the printing efficiency of the 3D printer among the correlation technique and lower, can't satisfy user demand's problem.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:

FIG. 1 is a schematic diagram of an axial structure according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a front view structure according to an embodiment of the present application;

FIG. 3 is a schematic side view of an embodiment according to the present application;

FIG. 4 is a schematic diagram of another axial structure according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a consumable extrusion apparatus according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a printing process of a consumable extrusion apparatus according to an embodiment of the present application;

wherein, 1 extruder, 2 rotary driving mechanism, 21 motor installed parts, 22 driving gears, 23 driving motor, 3 driven gear, 4 pivots, 5 bearings, 6 extrusion motor, 7 transmission cover, 8 ring flanges, 9 typefaces, 10 supporting platform, 11 transmission system, 110 doubly fast chain conveyor, 12 print platform, 13 mounts, 143D printer module, 15 jacking platform, 16 jacking mechanism, 17 load bearing spare, 18 rotary mechanism, 19 locating pins, 20 consumptive material extrusion device, 24 gag lever post, 25 bracing pieces, 27 scrapers, 28 guiding axles, 29 deflector.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used.

In this application, the terms "upper", "lower", "inside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "disposed," "provided," "connected," "secured," and the like are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In addition, the term "plurality" shall mean two as well as more than two.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 6, an embodiment of the present application provides an automated pipeline 3D printer, where the automated pipeline 3D printer includes: a fixed frame 13, a 3D printer module 14 and a transmission system 11; the 3D printer modules 14 are arranged on the fixing frame 13, the number of the 3D printer modules 14 is N, and the 3D printer modules are arranged along the conveying direction of the conveying system 11, where N is an integer greater than 1; at least N +1 printing platforms 12 are arranged on the conveying system 11 along the conveying direction, and the printing platforms 12 and the conveying system 11 can be arranged separately; the printer further comprises a lifting fixing assembly for controlling the lifting of the printing platform 12 and fixing the printing platform 12 above the conveying system 11, and the conveying system 11 is set to be capable of bidirectional conveying.

In this embodiment, the fixing frame 13 is used for installing and supporting the 3D printer module 14, the conveying system 11 is located below the 3D printer module 14 and is used for conveying the printing platform 12, the 3D printer module 14 is set to be N, the printing platform 12 is set to be N +1, and N is 5 for the description in this embodiment. The model to be printed is divided into 5 parts, each of the 5 3D printer modules 14 is responsible for printing one of the parts, and a station located before the first 3D printer module 14 is set as a starting station.

When the printing device is used, the first printing platform 12 is placed at the initial station, the conveying system 11 is started to convey the first printing platform 12 to the printing station corresponding to the first 3D printer module 14, then the first printing platform 12 is lifted and fixed through the lifting fixing component, and printing of the first part of the model is completed. Meanwhile, the second printing platform 12 is placed at the initial position, when the first printing platform 12 finishes printing, the first printing platform descends to the conveying system 11 through the lifting fixing component, at the moment, the conveying system 11 acts to convey the first printing platform 12 and the second printing platform 12 to the printing station corresponding to the second 3D printer module 14 and the printing station corresponding to the first 3D printer module 14 respectively, and similarly, the printing of the second part of the model on the first printing platform 12 and the first part of the model on the first printing platform 12 is finished. In this way, when the first printing platform 12 prints on the fifth 3D printer module 14, the second printing platform 12, the third printing platform 12, the fourth printing platform 12 and the fifth printing platform 12 respectively print on the fourth printer module, the third printer module, the second printer module and the first printer module, and the sixth printing platform 12 is located at the start position of the transport system 11.

At this time, the transmission system 11 continues to operate to convey the first printing platform 12 with the model printed to the next position and perform model unloading, the sixth printing platform 12 is conveyed to the printing station corresponding to the first printer module to perform printing, and the corresponding printing platform 12 is lifted and fixed by the lifting fixing component in the printing process of each 3D printer module 14, so that after the first printing platform 12 finishes unloading, other printing platforms 12 are not located on the transmission system 11, that is, the transmission system 11 can be controlled to reversely convey the first printing platform 12 to the initial position, and so on, the circular printing of each printing platform 12 is completed.

This embodiment has reached and has risen fixed printing with print platform 12 for accomplish print platform 12 that the model printed can be carried to the purpose that the initial position carries out the second round and prints by the transport system 11 of reversal, thereby realized the technological effect who improves the printing speed and the efficiency of 3D printer, and then the printing efficiency of having solved the 3D printer among the correlation technique is lower, can't satisfy user demand's problem.

As shown in fig. 1 to 6, the lifting fixing component includes a lifting mechanism for controlling the lifting of the printing platform 12 and a fixing mechanism for fixing the printing platform 12 after the printing platform 12 rises, in this embodiment, the lifting mechanism and the fixing mechanism are respectively responsible for the lifting and fixing of the printing platform 12, specifically, the lifting mechanism may be implemented by an air cylinder, a hydraulic cylinder or a screw rod mechanism, and the fixing mechanism may be implemented by a suction cup and a fixture, which is not limited herein.

As shown in fig. 1 to 6, the conveying system 11 is configured as a speed-multiplying chain conveying device 110, the speed-multiplying chain conveying device 110 passes through the fixing frame 13, and the 3D printer module 14 is fixed on the fixing frame 13 and located above the speed-multiplying chain conveying device 110. In this embodiment, the frame structure of the double-speed chain conveying device 110 is used, so that the middle part of the frame structure has the operation space of the lifting mechanism.

As shown in fig. 1 to 6, the lifting mechanism corresponds to the 3D printer module 14, the lifting mechanism includes a jacking mechanism 16 disposed below the double-speed chain conveying device 110 and a jacking platform 15 disposed at an output end of the jacking mechanism 16, and the printing platform 12 is located above the jacking platform 15.

Specifically, climbing mechanism 16 adopts the jacking cylinder, the output at the jacking cylinder is fixed to jacking platform 15, the action through the jacking cylinder drives print platform 12 who is located on jacking platform 15 to rise and descend, climbing mechanism 16 also can adopt the pneumatic cylinder like this, for improving the accuracy of print platform 12 lift in-process, elevating mechanism still includes deflector 29 and distributes at deflector 29 guiding axle 28 all around, the first end of deflector 28 slides and runs through deflector 29, second end and jacking platform 15 fixed connection, deflector 29 is fixed in mount 13 lower part, in-process that print platform 12 goes up and down, deflector 28 also slides from top to bottom in deflector 29 thereupon, thereby realize the accurate direction to print platform 12 lift process.

As shown in fig. 1 to 6, the fixing mechanisms are disposed on the upper portion of the fixing frame 13 and located on two opposite sides of the fixing frame 13, and two fixing mechanisms are disposed on each side, so that the two sides of the printing platform 12 are fixed, and the stability of fixing the printing platform 12 is guaranteed; the fixing mechanism comprises a rotating mechanism 18 fixed on a fixing frame 13, the output end of the rotating mechanism 18 faces downwards vertically and is provided with a bearing part 17, the bearing part 17 is arranged along the horizontal direction, the output ends of the bearing part 17 and the rotating mechanism 18 form an L-shaped component together, when the printing platform 12 ascends, the bearing part 17 faces outwards, when the printing platform 12 ascends to a set height, the rotating mechanism 18 drives the bearing part 17 to rotate to the position below the printing platform 12, then the jacking mechanism 16 resets, the printing platform 12 is provided with the bearing part 17 to support and fix, the rotating mechanism 18 comprises a fixing plate fixed on the fixing frame 13, the lower end of the fixing plate is vertically provided with a motor, and the output end of the motor faces.

As shown in fig. 1 to 6, the bearing member 17 includes a horizontally disposed clamping block, a first end of the clamping block is in transmission connection with an output end of the motor, a second end of the clamping block is vertically provided with a support rod 25, the upper end of the support rod 25 is in contact with the lower surface of the printing platform 12 to support and fix the printing platform 12, and the support rod 25 is in threaded connection with the clamping block and is locked by a nut, so that the support height of the support rod 25 is adjustable.

As shown in fig. 1 to 6, in order to further improve the stability of the printing platform 12 after fixing, a limiting rod 24 is vertically arranged at the lower end of the fixing plate, the limiting rod 24 vertically corresponds to the supporting rod 25, and a fixed distance is provided between the limiting rod 24 and the supporting rod, the fixed distance matches with the height of the printing platform 12, positioning holes are arranged around the printing platform 12, positioning pins 19 corresponding to the positioning holes are further arranged on the upper portion of the fixing frame, and when the printing platform 12 rises to a set height, the positioning pins 19 are inserted into the corresponding positioning holes.

As shown in fig. 1-6, the 3D printer module 14 includes a horizontal movement device, a vertical movement device, and a consumable extrusion device 20; wherein, consumable extrusion device 20 is fixed on the vertical motion device, and the vertical motion device is fixed on the horizontal motion device, and the horizontal motion device is fixed on mount 13.

As shown in fig. 1 to 6, the extrusion device of the current 3D printer can implement horizontal and vertical movements, a moving path of the extrusion device is parallel to a model and is printed layer by layer in the printing process, when some models (for example, fonts) are printed, a transition section is formed from a first character to a second character, when the extrusion device closes an outlet of a printing material after printing the first character and then moves to an initial printing position of the second character, because a part of the printing material remains after the extrusion device closes the outlet, the printing material falls on a platform under the action of gravity, so that a connecting line is formed in the moving process of the extrusion device on the transition section, the connecting line is obvious after multi-layer printing, and the quality of a printed product is finally affected.

In order to solve the restriction that is limited by extrusion device mechanical structure among the correlation technique, extrusion device forms unnecessary line at the in-process that the printing changeover portion moved, and the line is comparatively obvious after the multilayer printing, finally influences the problem of the quality of printing the product, improves consumptive material extrusion device 20, and is concrete, and consumptive material extrusion device 20 includes: the extruder comprises an extruder 1, a rotating mechanism and a rotating driving mechanism; the rotating mechanism can rotate around a horizontal shaft, the first end of the rotating mechanism is in transmission connection with the extruder 1, and the second end of the rotating mechanism is in transmission connection with the rotating driving mechanism.

In this embodiment, extruder 1 can adopt extruder 1 structure among the correlation technique, its first end fixed connection with rotary mechanism, rotary mechanism is the level setting, and can rotate around the horizontal axis under the drive of rotary driving mechanism 2, thereby it rotates certain angle to drive extruder 1 around the horizontal axis, make originally vertically extruder 1 deflect to the slope, because printing platform 12 is the level setting, and extruder 1 printing plane is the plane perpendicular with extruder 1, consequently, printing plane is the plane of slope in printing platform 12, like the part a of 3 in the figure, 3D printing is carried out along the planar inclined direction motion of printing to extruder 1.

More specifically, in the present embodiment, a printing support platform 10 and two models of fonts 9 located on the support platform 10 are taken as an example for explanation, a space between two fonts 9 is a transition section, a tilted plane is used for slicing the model to be printed, a plane where each slice is located is a printing plane perpendicular to the extruder 1, a part of the printing plane only includes the support platform 10 (e.g., part a in fig. 3), the rest of the printing planes include the support platform 10 and a part of the fonts 9 (e.g., part B in fig. 3), for the printing plane including the support platform 10 and the part of the fonts 9, the extruder 1 prints along the tilted direction of the printing plane with the font 9 part as a starting point, after printing of the part (B1) of the first font 9 on the printing plane is completed, the extruder 1 moves to the part (B2) of the support platform 10 for printing, and then moves horizontally to the transition section between two fonts 9 for printing the part of the support platform 10, and finally, the part which is moved to the second font 9 is printed, so that the extruder 1 is used for printing the supporting platform 10 in the moving process of the transition section, the connecting line which is positioned in the transition section in the related technology is eliminated, the extruder 1 does not need to be closed in the whole printing process, the printing can be continuously carried out, the printing efficiency is improved, and the printing time is saved.

As shown in fig. 1 to 6, the rotating mechanism includes a transmission sleeve 7, a bearing 5 sleeved in the transmission sleeve 7, and a rotating shaft 4 sleeved in the bearing 5, wherein a first end of the rotating shaft 4 is in transmission connection with the extruder 1, and a second end is in transmission connection with the rotation driving mechanism 2. The relative rotation between the rotating shaft 4 and the transmission sleeve 7 is realized through the matching of the rotating shaft 4 and the bearing 5, so that the rotating process is more stable.

As shown in fig. 1 to 6, the rotary driving mechanism 2 includes a driving motor assembly fixed on the transmission sleeve 7, and an output end of the driving motor assembly is provided with a driving gear 22; the second end of the rotating shaft 4 is provided with a driven gear 3 engaged with the driving gear 22. Drive driving gear 22 through starting driving motor subassembly and rotate to drive rather than the driven gear 3 rotation of meshing, drive pivot 4 and extruder 1 rotation then, realize the deflection of extruder 1, through driving motor subassembly control, it is better to reach control accuracy, advantage that control speed is faster.

As shown in fig. 1 to 6, the extruder 1 includes an extruding motor 6, a flange 8 is fixedly disposed on an end surface of the extruding motor 6, and a first end of the rotating shaft 4 is fixedly connected to the flange 8. The driving motor assembly comprises a motor mounting piece 21 fixedly arranged on the transmission sleeve 7 and a driving motor 23 fixedly arranged on the motor mounting piece 21, the output end of the driving motor 23 can rotate around a horizontal shaft and is in transmission connection with the driving gear 22, and the driving motor 23 can adopt a stepping motor or a servo motor.

As shown in fig. 1 to 6, the printer further includes a material receiving device and a scraper 27 fixed on the fixing frame 13, the scraper 27 is located above the double-speed chain conveying device 110, the scraper 27 is arranged perpendicular to the conveying direction of the double-speed chain conveying device 110, and the scraper 27 and the upper surface of the printing platform 12 are located on the same horizontal plane; the receiving device is positioned below the double-speed chain conveying device 110 and is used for receiving the model scraped from the printing platform 12 by the scraper 27.

Specifically, it should be noted that the scraper 27 is fixed on the fixing frame 13, the speed-multiplying chain conveying device 110 drives the printing platform 12 with the model placed thereon to move to the scraper 27, at this time, the speed-multiplying chain conveying device 110 continues to drive the printing platform 12 to move, the model on the printing platform 12 is scraped by the scraper 27 and then falls into the material receiving device, the printing platform 12 passes through the gap between the scraper 27 and the speed-multiplying chain conveying device 110, and the material receiving device can be set as a material receiving trolley, so that the transportation is facilitated.

According to another aspect of the application, there is provided a 3D printing method using an automated pipeline 3D printer and comprising the steps of:

(1) dividing the printing model into N parts with the same number as that of the 3D printer modules 14;

(2) placing N +1 printing platforms 12 one by one on the transport system 11;

(3) the control transmission system 11 sequentially conveys the first printing platform 12 to the printing stations of the first to Nth 3D printer modules 14, and the printing of the corresponding part of the printing model is completed by lifting and fixing the printing platform 12 on each printing station through the lifting fixing assembly;

(4) in the process, the control transmission system 11 sequentially conveys the second printing platform 12 to the Nth printing platform 12 to the printing stations of the first to Nth 3D printer modules 14, and the printing of the printing models of the corresponding parts is completed by lifting and fixing the printing platform 12 on each printing station through the lifting fixing assembly;

(5) controlling the conveying system 11 to convey the first printing platform 12 to the unloading station for printing model unloading, and meanwhile conveying the (N + 1) th printing platform 12 to the printing station of the first 3D printer module 14 for printing the first part of the printing model;

(6) when the second printing platform 12 to the (N + 1) th printing platform 12 are in the printing process, controlling the conveying system 11 to reversely rotate and convey the unloaded first printing platform 12 to the initial position;

(7) and (4) repeating the step (3), sequentially unloading the printing models on the second printing platform 12 to the (N + 1) th printing platform 12 in the process, and controlling the conveying system 11 to reversely rotate in the unloading process to convey the corresponding printing platform 12 to the initial position for second round printing.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.