KR20200084459A - Printing method of 3d printer - Google Patents

Abstract

Provided is a printing method of a 3D printer having multiple heads, capable of reducing a printing time. According to the present invention, the printing method, which is a printing method of a 3D printer having multiple heads, the 3D printer including a shared column disposed at a center of the 3D printer, a plurality of columns disposed around the shared column, and a plurality of heads in which each of the heads is connected to the shared column and two columns among the plurality of columns to perform printing within a predetermined region, includes: printing a mono-section, which is an area in which only one of the heads is able to perform the printing among areas that are printed by the 3D printer; printing a multi-section, which is an area in which at least two of the heads are able to perform the printing while at least one of the heads is unable to perform the printing among the areas that are printed by the 3D printer; and printing a core section, which is an area in which all of the heads are able to perform the printing among the areas that are printed by the 3D printer.

Description

How to print a 3D printer with multi-heads{PRINTING METHOD OF 3D PRINTER}

The present invention relates to a method for outputting a 3D printer having a multi-head.

3D printers use raw materials such as metal, rubber, plastic

D. It is a device that produces products in a three-dimensional sense like real objects. In the past, it was used a lot for the purpose of manufacturing mock-up products or prototypes before mass production, but recently, it has been used for manufacturing parts of automobiles or airplanes, or it has been used for outputting characters or models in animations or games. Is being tried.

In 3D printing technology, a Fused Deposition Model Technology (FDM) is known. The FDM method refers to a method in which a thermoplastic layer of a plastic material is melted with the heat of a nozzle and then applied to a bed so that layer layers are stacked up. The 3D printer by the FDM method contributed to the popularization of the 3D printer because it was inexpensive and the price of the filament as a raw material was not expensive.

The 3D printer by the FDM method supplies filaments through a supply reel and a transfer roll, and the supplied filaments are melted and discharged from a heater nozzle mounted in a 3D transport mechanism that is positioned in three directions, X, Y, and Z, It can be stacked on a work table to form a three-dimensional object.

Conventional FDM 3D printers are equipped with a single head equipped with a nozzle. Even when a plurality of nozzles are provided, there is a fear that the moving path of the head may interfere, so that the head provided with the nozzle is provided singly. In this case, the processing time may not be a big problem in the case of a small-sized output, but when processing a relatively large-sized output, there is a problem that the output time is greatly increased with a single head, causing inconvenience when using a 3D printer. have.

According to an embodiment of the present invention, an object of the present invention is to provide a 3D printer that is provided to move a plurality of heads individually to produce a three-dimensional object.

It is also an object to provide a 3D printer in which a plurality of heads do not interfere with each other.

The objects of the present invention are not limited to the objects mentioned above, and other objects and advantages of the present invention not mentioned can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. In addition, it will be readily appreciated that the objects and advantages of the present invention can be realized by means of the appended claims and combinations thereof.

The output method of the present invention for achieving the above object is provided with a shared column disposed in the center and a plurality of columns arranged around the shared column, and connected to two columns of the shared column and the plurality of columns to determine a predetermined area. A method of outputting a 3D printer having a multi-head provided with a plurality of heads, including a head performing output within, outputting a monosection that is an area where only one head can be output from a region capable of being output to a 3D printer, At least two heads can be output from the area that can be output to the 3D printer, and at least one head can output a multi-section, which is a non-printable area, and all of the multiple heads can be output from the area that can be output to the 3D printer. And outputting the core section, which is an area.

In one embodiment of the present invention, the step of outputting the multi-section is either the second work permission, which is the right to output the monosection and the multisection, or the third work permission, which is the right to output the monosection, respectively. One is assigned, and the head to which the second work permission is granted and the head to which the third work permission is granted simultaneously output different areas.

In one embodiment of the present invention, the step of outputting the core section is the first work right, the right to output the mono section, the multi section and the core section, respectively, and the right to output the mono section and the multi section. One of the third work permission, which is the right to output only the second work permission or mono section, is given the first work permission head, the second work permission head, and the third work permission The head simultaneously outputs different areas.

In the exemplary embodiment of the present invention, when there are a plurality of heads to which the first work permission is granted, only one of the heads to which the first work permission is granted performs output.

The output method of the present invention has an effect of reducing output time by outputting a plurality of individually moving heads.

In addition, it is possible to prevent a plurality of heads from interfering with each other by using a structure of a plurality of delta transfer methods sharing a central shared column.

In addition, the central shared column moves in the vertical direction, so there is no area where output is impossible.

In addition to the above-described effects, the concrete effects of the present invention will be described together while describing the specific matters for carrying out the invention.

1 is a perspective view showing a 3D printer for an output method according to an embodiment of the present invention.
2 is a plan view showing a 3D printer for an output method according to an embodiment of the present invention.
3 is a state diagram showing an area that can be output by each head included in a 3D printer for explaining an output method according to an embodiment of the present invention.
4 is a flowchart illustrating an output method according to an embodiment of the present invention.
5 is a table showing work permission and workable area in an output method according to an embodiment of the present invention.

The above-described objects, features, and advantages will be described in detail below with reference to the accompanying drawings, and accordingly, a person skilled in the art to which the present invention pertains can easily implement the technical spirit of the present invention. In the description of the present invention, when it is determined that detailed descriptions of known technologies related to the present invention may unnecessarily obscure the subject matter of the present invention, detailed descriptions will be omitted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numbers in the drawings indicate the same or similar components.

First, a configuration of a 3D printer for implementing some embodiments of the present invention will be described.

1 is a perspective view showing a 3D printer for an output method according to an embodiment of the present invention, and FIG. 2 is a plan view showing a 3D printer for an output method according to an embodiment of the present invention.

1 to 2, the 3D printer 1 according to an embodiment of the present invention connects the upper frame 10, the lower frame 20 and the upper frame 10 and the lower frame 20 It includes a plurality of columns (40:column). In addition, a shared column 50 movable in the vertical direction may be further provided at the center of the region formed by the plurality of columns 40.

The shared column 50 is mounted on the upper frame 10 and can be provided to be movable in the vertical direction. In one example, the shared column 50 may be located in the center of the upper frame 10.

The nozzle assembly 60 may be mounted on the plurality of columns 40 and the shared column 50. The nozzle assembly 60 includes two arms 40, 61, 62, 63 and a head 64 mounted on adjacent columns 40 and a shared column 50. The head 64 may be provided with a nozzle (not shown) that melts and supplies the thermoplastic filament.

The plurality of columns 40 is provided with six, each one end is connected to the upper frame 10, each other end may be connected to the lower frame 20. The line connecting one end of the six columns 40 connected to the upper frame 10 may form a regular hexagon. That is, one end of the six columns 40 connected to the upper frame 10 may be located at a vertex of a regular hexagon.

Each of the six columns 40 extends in parallel. Therefore, the line connecting the other end of the six columns 40 connected to the lower frame 10 forms a regular hexagon. The regular hexagon formed by the column 40 in the upper frame 10 and the regular hexagon formed by the lower frame 20 may correspond to each other. Accordingly, the six columns 40 connecting the upper frame 10, the lower frame 20 and the upper frame 10 and the lower frame 20 may form a regular hexagonal column.

A base 30 may be further provided on an upper portion of the lower frame 20. The base 30 serves as a work table in which a three-dimensional shape is produced. The base 30 is fixed on the lower frame 20, and the nozzle assembly 60 can be moved to produce a three-dimensional shape.

The nozzle assembly 60 includes a plurality of arms 61, 62, 63 and a head 64 on which a nozzle is mounted. A total of six nozzle assemblies 60 may be provided. Each nozzle assembly 60 may be located in a space formed by two adjacent columns 41 and 42 and the shared column 50, respectively.

Each nozzle assembly 60 includes three arms 61, 62, 63 and a head 64 to which three arms 61, 62, 63 are connected. The three arms 61, 62, and 63 may be connected to a first column 41, a second column 42, or a shared column 50 adjacent to each other.

In detail, the three arms 61, 62 and 63 have a first arm 61 with one end connected to the first column 41 and the other end connected to the head 64, and one end of the second column 42. It includes a second arm 62 connected to the other end is connected to the head 64, and a third arm 63, one end is connected to the shared column 50 and the other end is connected to the head 64.

The first arm 61 is provided to be movable in the vertical direction along the first column 41, and the second arm 62 is provided to be movable in the vertical direction along the second column 42. In addition, the third arm 63 is provided to be movable in the vertical direction along the shared column 50.

The first arm 61, the second arm 62, and the third arm 63 are provided to be movable in the vertical direction along the first column 41, the second column 42, or the shared column 50, respectively. In addition, it may be provided to be tiltable for each column. In detail, the vertical movement of the first arm 61, the second arm 62, and the third arm 63 is impaired in the first column 41, the second column 42, or the third column 43, respectively. Tilting may be provided so as not to receive.

A plurality of arms (61,62,63) are provided to be movable in the vertical direction along the first column (41), the second column (42) or the shared column (50), respectively, and tiltable for each column By being provided, the head 64 can easily manufacture a three-dimensional object in a predetermined area A formed by the first column 41, the second column 42, and the shared column 50.

The shared column 50 may be provided to be movable in the vertical direction. When the first arm 61 moves up and down along the first column 41 and the second arm 62 moves up and down along the second column 42, the third arm 63 is shared The position of the head 64 may be adjusted by moving in the vertical direction along the column 50 or by moving the shared column 50 in the vertical direction.

In this way, the shared column 50 is provided to be movable in the vertical direction, so that the head 64 may not be interfered by the shared column 50. The head 64 is provided with a heater and a nozzle, and the filament melted by the heater is supplied through the nozzle to produce a three-dimensional object.

As described above, six heads are provided, and three-dimensional objects can be easily manufactured in six regions formed by two adjacent columns and the shared column 50. The heads located in each area can be individually moved. That is, the nozzle assembly located in each region can be operated individually.

3 is a state diagram showing an area that can be output by each head included in a 3D printer for explaining an output method according to an embodiment of the present invention, and FIG. 4 is an output method according to an embodiment of the present invention 5 is a table showing work permission and workable area in an output method according to an embodiment of the present invention.

Hereinafter, an output method according to some embodiments of the present invention will be described.

As illustrated in FIG. 3, the output method according to an embodiment of the present invention includes a mono section 100 in which only one head can be output, and a multi-section in which at least two heads can be output but not all of the heads can be output. It includes a section 110 and a core section 120, which is an area where all heads can be output.

As shown in FIG. 4, the output method of the present invention includes a shared column 50 disposed in the center and a plurality of columns 40 disposed around the shared column 50, and the shared column 50 and multiple As a method for outputting a 3D printer having a multi-head provided with a plurality of heads (64) including a head (64) connected to two of the columns (40) and performing printing within a predetermined area The step of outputting a monosection, which is an area in which only one head of the 3D printer can output, is capable of outputting at least two heads among the areas capable of outputting to the 3D printer, and at least one head cannot be output. And outputting a multi-section, which is an area, outputting a core section, which is an area in which a plurality of heads are all outputable from a 3D printer-printable area, and a shared column raising step of raising the shared column 50.

Then, the above-described step of outputting the mono-section, the step of outputting the multi-section, the step of outputting the core section and the step of raising the shared color are repeated until the output is completed.

In addition, the step of outputting the multisection 110 outputs only the second operation permission or the monosection 100, which is the authority to output the multiple sections 64 and the monosection 100 and the multisection 110, respectively. One of the third work authority, which is the right to do so, is granted, and the head 64 to which the second work authority is granted and the head 64 to which the third operation authority is granted simultaneously outputs different areas.

And, in the step of outputting the core section 120, one of the first work permission, the second work permission, and the third work permission may be given to the plurality of heads 64.

The head 64 to which the first work authority is granted may output the monosection 100, the multisection 110, and the core section 120.

The head 64 to which the second work authority is granted may output the monosection 100 and the multisection 110.

In addition, the head 64 to which the third work authority is granted may output the monosection 100.

In addition, the head 64 to which the first work permission is granted, the head 64 to which the second work permission is granted, and the head 64 to which the third work permission is granted may simultaneously perform output of different areas.

At this time, when there are a plurality of heads 64 to which the first work permission has been granted, only one head 64 of the heads 64 to which the first work permission has been granted can perform output.

This is because if the number of heads 64 that can enter the core section 120 is large, the head 64 performing the output in the core section 120 is determined as one, so that collision or interference that may occur between the heads 64 is determined. It has the effect of excluding potential.

As described above, the present invention has been described with reference to the exemplified drawings, but the present invention is not limited by the examples and drawings disclosed in the present specification, and can be varied by those skilled in the art within the scope of the technical idea of the present invention. It is obvious that modifications can be made. In addition, although the operation and effect according to the configuration of the present invention has not been explicitly described while explaining the embodiment of the present invention, it is natural that the predictable effect should also be recognized by the configuration.

1: 3D printer 10: Upper frame
20: lower frame 30: base
40: column 41: first column
42: second column 50: shared column
60: nozzle assembly 61: first arm
62: second arm 63: third arm
64: head

Claims (4)

It includes a shared column disposed in the center and a plurality of columns arranged around the shared column, and includes a head connected to two of the shared column and the plurality of columns to perform output within a predetermined area, As a method of outputting a 3D printer having a multi-head provided with a plurality of the head,
Outputting a monosection that is an area in which only one head of the areas capable of being output to the 3D printer is available;
Outputting a multi-section in which at least two heads are outputable from the 3D printer-capable area, and at least one head is a non-printable area;
Outputting a core section, which is an area in which a plurality of the heads are all output from the area capable of being output to the 3D printer;
Output method comprising a.
According to claim 1,
The step of outputting the multi-section grants one of a plurality of the heads of the second work right, which is the right to output a monosection and a multisection, or a third work right, which is the right to output a monosection, respectively. An output method in which the head to which the second work permission is granted and the head to which the third work permission is granted are simultaneously outputting different areas.
According to claim 1,
In the step of outputting the core section, a plurality of the heads, respectively, a first work right that is a right to output a monosection, a multisection and a core section, and a second work right that is a right to output a monosection and a multisection, respectively. Alternatively, one of the third work authority, which is the authority to output only the monosection, is granted, the head to which the first operation authority is granted, the head to which the second operation authority is granted, and the third operation authority to be granted The head is an output method for performing output of different areas at the same time.
According to claim 3,
An output method in which only one head of the heads to which the first work permission is granted performs output when the heads to which the first work permission is granted are plural.

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