WO2017025014A1

WO2017025014A1 - Three-dimensional printing method and three-dimensional printing device

Info

Publication number: WO2017025014A1
Application number: PCT/CN2016/094118
Authority: WO
Inventors: 闫伟; 李世强
Original assignee: 珠海天威飞马打印耗材有限公司
Priority date: 2015-08-10
Filing date: 2016-08-09
Publication date: 2017-02-16
Also published as: CN105034374A

Abstract

A three-dimensional printing method and a three-dimensional printing device using the method. The three-dimensional printing method comprises a step of starting printing (S1), a step of pausing three-dimensional printing (S2) and a step of continuing three-dimensional printing (S3), wherein the step of pausing three-dimensional printing (S2) comprises a step of inputting a printing pause command (S21), a step of stopping printing head extruding (S22), a step of recording printing information (S23), and a step of maintaining the temperature of the printing head and the temperature of a three-dimensional printing platform and maintaining the height of the three-dimensional printing platform (S26); and the step of continuing three-dimensional printing (S3) comprises a step of inputting a printing continuation command (S31), and a step of the printing head continuing printing according to the printing information (S33). By means of the method, material consumption and waste may be reduced, and at the same time, overall costs of a printer will not increase.

Description

Three-dimensional printing method and three-dimensional printing device

Technical field

The present invention relates to the field of printing, and in particular to a three-dimensional printing method and a three-dimensional printing apparatus for implementing the same. The present invention is based on a Chinese patent application filed on Aug. 10, 2015, the application number of which is incorporated herein by reference.

Background technique

3D printer, also known as 3D printer, is a machine that uses rapid prototyping technology. Based on digital model files, it uses molding materials to construct three-dimensional entities by layer-by-layer printing. Before printing, it is necessary to use computer modeling software to model, and then “partition” the built 3D model into a layer-by-layer section, ie, slice, to guide the 3D printer to print layer by layer. 3D printers have been widely used in the product manufacturing industry. The working principle of 3D printers is basically the same as that of traditional printers. It consists of control components, mechanical components, print heads, consumables (ie molding materials) and media. The printing principle is basically similar.

If there is an error during the 3D printing process or when the printing is interrupted, or if the silk material is missing in the printing and a new silk material needs to be replaced, the printer program will start again and the model needs to restart printing, which causes the already printed object to be printed. Obsolete, resulting in a waste of a large amount of silk consumables, resulting in a lot of manpower, materials, time wasted.

technical problem

A first object of the present invention is to provide a three-dimensional printing method that can continue three-dimensional printing after a pause.

A second object of the present invention is to provide a three-dimensional printing apparatus that can continue three-dimensional printing after a pause.

Technical solution

In order to achieve the first object of the present invention, the present invention provides a three-dimensional printing method for a three-dimensional printer comprising a print head moving in a horizontal plane and a three-dimensional printing platform moving in a vertical direction, wherein the three-dimensional printing method comprises three-dimensional printing Step, suspending the three-dimensional printing step and continuing the three-dimensional printing step; suspending the three-dimensional printing step includes: inputting a step of suspending the printing instruction; step of stopping the printing of the printing head; recording the printing information; maintaining the temperature of the printing head and the temperature of the three-dimensional printing platform The step of maintaining the height of the three-dimensional printing platform, the step of continuing the three-dimensional printing comprises: inputting a step of continuing the printing instruction; and the step of the printing head continuing to print according to the printing information.

Preferably, after the step of recording the print information, the step of suspending the three-dimensional printing further comprises the steps of: recording the pause position; the step of moving the print head to a position outside the three-dimensional print platform, and continuing the three-dimensional operation after inputting the step of continuing the print instruction The printing step further includes the step of moving the print head to the pause position.

A further solution is that after the step of suspending the three-dimensional printing, the three-dimensional printing method further comprises a re-three-dimensional printing step, the re-three-dimensional printing step comprising: a step of inputting a re-printing instruction; a step of clearing the last printing information; and a step of importing new model data; The step of performing three-dimensional printing based on the new model data.

A further solution is that after the step of clearing the last print information, the re-three-dimensional printing step further comprises the step of clearing the pause position.

In order to achieve the second object of the present invention, the present invention provides a three-dimensional printing apparatus comprising a print head, a three-dimensional printing platform, a memory and a processor, wherein the print head moves in a horizontal plane, and the three-dimensional printing platform moves in a vertical direction, wherein the memory is used In the stored program, the processor is configured to execute a program for: receiving a pause print instruction; stopping the print head from being squeezed; recording the print information; maintaining the temperature of the print head and the temperature of the three-dimensional print platform; maintaining the height of the three-dimensional print platform; Print instruction; controls the print head to continue printing according to the print information.

Beneficial effect

By applying the three-dimensional printing method and the three-dimensional printing apparatus of the present invention, by inputting a pause printing signal, by recording three-dimensional printing information and maintaining the temperature of the printing head and the temperature of the printing platform, the silk material can be replaced at this time, and after the silk material is replaced, the input is input. Continue to print the signal, and continue the three-dimensional printing from the last pause point according to the last held print information, so that the three-dimensional printing can be continued after the pause, thereby reducing the waste of the silk consumables and reducing the waste of manpower, materials and time. Does not increase the overall cost of the printer, effectively improving the user experience.

Moreover, when the silk material is replaced, the print head will extrude a part of the silk material. In order to prevent the extruded part from affecting the solid model, the pause position of the print head is recorded, and the print head is moved to a place outside the three-dimensional printing platform. After returning to the pause position after replacing the silk material, the solid model is not affected and the print quality is improved.

In addition, when printing is paused, if it is necessary to reprint, the last print information and pause position can be cleared, and then the new model can be printed.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a block diagram showing an embodiment of a three-dimensional printer of the present invention.

Figure 2 is a block diagram of another embodiment of the three-dimensional printer embodiment of the present invention.

3 is a flow chart of an embodiment of a three-dimensional printing method of the present invention.

4 is a flow chart showing the steps of suspending a three-dimensional printer in an embodiment of the three-dimensional printing method of the present invention.

Figure 5 is a flow chart showing the steps of continuing the three-dimensional printer in the embodiment of the three-dimensional printing method of the present invention.

Figure 6 is a flow chart showing the steps of re-three-dimensional printer in the embodiment of the three-dimensional printing method of the present invention.

Figure 7 is a system block diagram of an embodiment of a three-dimensional printing apparatus of the present invention.

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Embodiments of the invention

3D printer embodiment:

1 and 2, FIG. 1 and FIG. 2 are structural views of the three-dimensional printer 1 at different viewing angles. The three-dimensional printer 1 includes a housing 11 that encloses a cavity for three-dimensional imaging in which an X-axis servo motor 121, a Y-axis servo motor 122, and a Z-axis servo motor 123 are mounted (see Fig. 7). The Z-axis servo motor 123 is mounted at the bottom of the cavity, a screw is connected to the Z-axis servo motor, a guide rod is also mounted on the bottom wall of the cavity, and a Z-axis moving bracket 131 is mounted on the guide rod, in the Z The shaft moving bracket 131 is provided with a three-dimensional printing platform 132. Since the Z-axis moving bracket 131 is screwed with the screw thread, when the Z-axis servo motor operates, the screw will be driven to rotate, and then the three-dimensional printing platform 132 is driven by the Z-axis servo motor. Move down in the Z-axis direction.

The Y-axis servo motor 122 is mounted on the side wall of the cavity, and a guide rod is fixedly disposed on the side wall, and a Y-axis moving bracket is disposed on the guide rod, and the Y-axis servo motor is connected to the Y-axis moving bracket through the belt, when Y When the shaft servo motor 122 rotates, the Y-axis moving bracket is slid along the guide rod by the belt, that is, the Y-axis moving bracket is moved in the Y-axis direction by the Y-axis servo motor 122.

An X-axis servo motor 121 and two guide rods are mounted on the Y-axis moving bracket, and two guide rods are respectively disposed on both sides of the X-axis servo motor 121, and a print head 14 and a consumable supply motor are disposed on the two guide rods. Assembly and changeover unit 2 (see Figure 3). When the X-axis servo motor 121 rotates, the print head 14 is slid along the guide bar by the belt, that is, the print head 14 is moved in the X-axis direction by the X-axis servo motor 121. The X-axis servo motor 121, the Y-axis servo motor 122, and the Z-axis servo motor constitute the servo motor assembly of this embodiment. The casing 11 is provided with two wire wheels 161 on the outer side of the cavity, and a wire 151 is wound around the wire wheel 161, and the wire 151 is used as an image forming material for three-dimensional imaging of the present embodiment.

Three-dimensional printing method embodiment:

Referring to Figure 3, Figure 3 is a flow chart of a three-dimensional printing method. When three-dimensional printing is performed by using a three-dimensional printer, step S1 is first executed, the three-dimensional printer imports data that needs to be printed, and starts three-dimensional printing according to the data of the printing model, including resetting the print head, resetting the three-dimensional printing platform, and the like.

When it is necessary to pause the three-dimensional printing in progress, step S2 is executed to pause the three-dimensional printing. After the three-dimensional printer pauses the three-dimensional printing, the silk material 151 can be replaced. After the silk material is replaced, the step S3 can be performed, and the original printing is performed. Continue to 3D printing on the basis. When the print module is found to be defective after the pause of the three-dimensional printing, and the printing needs to be abandoned, step S4 may be performed, and the three-dimensional printer re-three-dimensionally prints the new model.

Referring to Figure 4, Figure 4 is a flow chart for suspending the three-dimensional printing step. When the suspending three-dimensional printing step is performed, step S21 is first performed, a pause printing instruction is input to the three-dimensional printer, and then step S22 is performed, the extruding device in the printing head stops the squeezing, and then step S23 is executed, and the three-dimensional printer records the printing information, the printing information. Including the layered data of the model currently being printed, the data of the three-dimensional printing that has been completed, the data of the three-dimensional printing that has not been completed, and then performing step S24, the three-dimensional printer records the coordinates of the pause position of the print head at the pause time, and then prints in step S25. Moving the head to a position outside the three-dimensional printing platform, and then performing step S26 to maintain the temperature of the print head and the temperature of the three-dimensional printing platform, that is, maintaining the temperature of the heater in the print head and the temperature of the heater in the three-dimensional printing platform, thereby making the print head The inner wire continues to be molten and avoids unfinished model deformation on the 3D printing platform, while also locking the Z-axis servo motor to maintain the height of the 3D printing platform.

Referring to Figure 5, Figure 5 is a flow chart for continuing the three-dimensional printing step. When the step of continuing the three-dimensional printing is performed, step S31 is first performed to input a three-dimensional printing instruction to the three-dimensional printer, and then step S32 is executed, the three-dimensional printer reads the coordinate information of the pause position and moves the print head to the pause position, and then performs step S33, three-dimensional The printer reads the print information and the print head continues to print according to the print information.

Referring to Figure 6, Figure 6 is a flow chart for re-three-dimensional printing. When the re-three-dimensional printing step is performed, step S41 is first executed, a re-three-dimensional printing instruction is input to the three-dimensional printer, and then step S42 is executed to input a re-printing instruction to the three-dimensional printer, and then step S43 is performed to clear the last printing information, and then step S44 is performed. The pause position is cleared, and then step S45 is executed to import new model data to the three-dimensional printer. Finally, step S45 is executed, and the three-dimensional printer performs three-dimensional printing based on the new model data.

Three-dimensional printing device embodiment:

The three-dimensional printer 1 includes a three-dimensional printing device for controlling a servo motor assembly, a heating device, a processor 21, and a memory 22, the three-dimensional printing device including a three-dimensional printing platform 132, a print head 14, An X-axis servo motor 121, a Y-axis servo motor 122, a Z-axis servo motor 123, a three-dimensional printing platform heating device 17, a print head heating device 18, a processor 21, and a memory 22. Print head heating device 18 is disposed within the printhead, the printhead heating device 18 is for heating the printhead, the three-dimensional printing platform heating device 17 is disposed on the three-dimensional printing platform, and the three-dimensional printing platform is heated 17 for heating the three-dimensional printing platform.

The processor 21 outputs a movement control signal to the X-axis servo motor 121, the Y-axis servo motor 122, and the Z-axis servo motor 123, respectively, and an extrusion device is further mounted in the print head 14, and the processor 21 also outputs the extrusion to the extrusion device. Control signal, processor 21 to three-dimensional printing platform heating device 17 outputting a first heating control signal, processor 21 to print head heating device 17 outputs a second heating control signal, the memory 22 stores a program, and the processor 21 can write the printing information and the pause position information to the memory 22.

When the three-dimensional printing apparatus is in operation, the processor 21 is configured to execute a program stored in the memory 22, and the processor 21 is configured to: receive a pause print instruction, stop the print head from being squeezed, record print information, record a pause position, and move the print head The position outside the three-dimensional printing platform, the temperature of the print head and the temperature of the three-dimensional printing platform, the height of the three-dimensional printing platform are maintained, the print instruction is continued, the print head is moved to the pause position, and the print head is controlled to continue printing according to the print information.

When re-three-dimensional printing is required, the processor 21 can also be configured to: receive a reprint instruction, clear the last print information, import new model data, clear the pause position, and perform three-dimensional printing based on the new model data.

Industrial applicability

The three-dimensional printer of the present invention can replace the silk material by inputting a pause printing signal to the three-dimensional printer, by recording the three-dimensional printing information, and maintaining the temperature of the printing head and the temperature of the printing platform. After the silk material is replaced, the printing signal is continued through the input. And according to the last held print information, continue the three-dimensional printing from the last pause point, so that the three-dimensional printing can be continued after the pause, thereby reducing the waste of the silk consumables, reducing the waste of manpower, materials, time, and not increasing The overall cost of the 3D printer effectively improves the user experience.

Claims

A three-dimensional printing method for a three-dimensional printer, the three-dimensional printer comprising a print head moving in a horizontal plane and a three-dimensional printing platform moving in a vertical direction,

It is characterized by:

The three-dimensional printing method includes a three-dimensional printing step, a pause three-dimensional printing step, and a three-dimensional printing step;

The pause three-dimensional printing step includes:

Enter a pause print command;

The print head stops squeezing;

Record print information;

Maintaining the temperature of the printhead and the temperature of the three-dimensional printing platform;

Maintain the height of the 3D printing platform;

The continuing three-dimensional printing step includes:

Enter the continue print instruction;

The printhead continues printing in accordance with the print information.
The three-dimensional printing method according to claim 1, wherein:

After the step of recording the print information, the step of suspending the three-dimensional printing further comprises:

The step of recording the pause position;

The step of moving the print head to a position outside the three-dimensional printing platform;

After the input of the continue printing instruction, the step of continuing the three-dimensional printing further includes:

The printhead moves to the pause position.
The three-dimensional printing method according to claim 2, wherein:

After suspending the three-dimensional printing step, the three-dimensional printing method further includes a re-three-dimensional printing step, the re-three-dimensional printing step comprising:

Enter a reprint instruction;

Clear the last print information;

Import new model data;

Three-dimensional printing is performed based on the new model data.
The three-dimensional printing method according to claim 3, wherein:

After the last print information is cleared, the re-three-dimensional printing step further includes:

Clear the pause position.
3D printing device, including

a print head that moves in a horizontal plane;

a three-dimensional printing platform, the three-dimensional printing platform moves in a vertical direction;

It is characterized by:

a memory for storing a program;

a processor for receiving a pause print instruction, stopping the print head from being squeezed, recording print information, maintaining a temperature of the print head and a temperature of the three-dimensional print platform, maintaining a height of the three-dimensional print platform, receiving a resume print instruction, and The printhead is controlled to continue printing in accordance with the print information.
The three-dimensional printing method according to claim 5, wherein:

The processor is further for recording a pause position, moving the printhead to a position outside the three-dimensional printing platform, and moving the printhead to the pause position.
The three-dimensional printing method according to claim 6, wherein:

The processor is further configured to receive a reprint instruction, clear a last print information, import new model data, and perform three-dimensional printing based on the new model data.
The three-dimensional printing method according to claim 7, wherein:

The processor is further configured to clear the pause position.