KR20150026760A - 3d printer including z-axis interworking part - Google Patents

Abstract

The present invention provides a 3D printer that includes a Z-axis interworking unit capable of performing precision molding by preventing rattle in Z-axis movement and easily controlling triaxis parallel via adoption of a Z-axis interworking unit structure in which a pair of guide posts and a Z-axis transport mechanism are connected to a pair of fixation plates.

Description

3D PRINTER INCLUDING Z-AXIS INTERWORKING PART < RTI ID = 0.0 >

The present invention relates to a 3D printer, and more particularly, to a 3D printer, in which a pair of guide posts and a Z-axis feed mechanism are connected to one or more fixed plates, And a 3D printer including a Z-axis interlocking portion.

3D printers are devices that produce stereoscopic products like real objects while stacking layers of raw materials such as metal, rubber, and plastic according to a design. With 3D printers, there is no waste of raw materials, as designers can virtually create multiple parts to build up the product by stacking the raw materials. In addition, the production process can be simplified and the production cost can be greatly reduced.

In recent years, the use of 3D printers capable of molding the objects using 3D data of objects has been increasing. These 3D printers have been used for previous modeling and sample production before mass production, but thereafter, a technical basis is being developed that can be used for the mass production of mass-produced products centering on small-volume production of various types of products.

The product molding method of a 3D printer includes so-called additive type, in which a target object is formed into a two-dimensional plane shape, and the shape is formed by melt-fusing while stacking the object in three dimensions.

As a kind of the additive type, a wire or filament made of thermoplastic plastic is supplied through a supply reel and a transfer roll, and the supplied filament is melted in a heater nozzle mounted on a three-dimensional transfer mechanism relatively positioned with respect to a work table in XYZ three directions There is a filament melt lamination molding method in which a two-dimensional planar shape is formed by discharging it and a three-dimensional object is formed by laminating it on a work table.

A three-dimensional printing apparatus similar to the filament melt lamination forming method among the above forming methods is shown in Fig.

The conventional three-dimensional printing apparatus includes a support 11 for placing a printing object, a color imparting device for ejecting colored material to the molding, and a support 11 ), A transfer device (10) capable of moving the relative position of the color imparting device, an inkjet nozzle (20) mounted on the transfer device (10) And the support base 11 can move up and down under the control of the control device.

However, since the above-described conventional technique has a rattling that may occur before and after the movement in the process of moving the inkjet nozzle 20 along the X axis, the Y axis, and the Z axis, it is difficult to precisely form a target object There was a problem.

In addition, when the three-dimensional printing apparatus is placed on the ground, it is troublesome that the parallelism of the apparatus itself is adjusted when the parallelism does not fit, and it is difficult to adjust the three axes so as to be parallel.

(Patent Document 1) KR10-0330945 B1

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a method of manufacturing a semiconductor device, which comprises at least one fixed plate fixed to an upper portion or a lower portion of a frame portion, a pair of guide posts connecting one or more fixed plates, And a Z-axis interlocking portion which is capable of forming a three-dimensional object more precisely by guiding the movement of the Z-axis interlocking portion including the axis feed mechanism in parallel to the Z-axis.

Furthermore, it is an object of the present invention to provide a Z-axis interlocking portion which is provided with a Z-axis interlocking portion for improving the machining speed through the construction of the Z-axis interlocking portion and capable of precisely forming the Z- And a printer.

According to an aspect of the present invention, there is provided a 3D printer including a frame unit, A body portion supporting the frame portion; An axis interlocking portion connected to the frame portion and moving in the X axis, the Y axis, and the Z axis; And a filament supply module mounted on the frame part and the body part to supply the filament, wherein the axial interlocking part comprises at least one fixing plate fixed to the upper or lower part of the frame part; A pair of guide posts connecting the at least one stationary plate; And a Z-axis feed mechanism disposed between the pair of guide posts.

Preferably, the Z-axis interlocking portion includes: a work table; A lift plate positioned at a lower portion of the work table and inserted into the pair of guide posts and the Z-axis feed mechanism and vertically reciprocating in the Z-axis direction; And a pair of guide joints fixed to the work table to guide movement of the elevating plate to be inserted into the pair of guide posts.

Preferably, the axial interlocking portion includes: a movable block guide rail connecting the upper portion of the frame portion; And a movable block inserted in the movable block guide rail and moving in the Y axis direction along the movable block guide rail.

Preferably, the axial interlocking portion includes a linear block guide rail disposed on an upper portion of the movable block in an X-axis direction perpendicular to the movable block guide rail; And a linear block disposed on the linear block guide rail and moving in the X-axis direction.

Preferably, the filament supply module includes an extruder mounted on a side of the frame, the extruder including a feed roll for feeding filaments; A heat block arranged to surround the linear block; A nozzle disposed inside the heat block; A filament supply reel mounted on one side of the body portion and having the filament disposed therein; And a guide tube communicating with the nozzle.

Preferably, the filament supply module includes: an injection part communicating with one side of the nozzle and into which the guide tube is inserted; And a Teflon filament separating member surrounding the inner surface of the injection unit.

Preferably, the heat block heats and liquefies the filaments conveyed along the guide tube by the conveying roll of the extruder, and the nozzles inject the liquefied filaments onto the work table do.

Preferably, the 3D printer further comprises: an enclosed chamber surrounding the frame portion and the body portion; And a temperature control unit disposed in the chamber.

Preferably, the temperature regulating section includes: a heater positioned in the chamber to raise the temperature inside the chamber; And a temperature sensor electrically connected to the heater to sense a temperature inside the chamber.

Preferably, the 3D printer further includes a controller electrically connected to the heater and the temperature sensor, wherein the controller receives a signal sensed by the temperature sensor, and then controls on / off of the heater, Thereby maintaining a predetermined temperature inside the chamber.

According to the present invention as described above, it is possible to precisely mold the pair of guide posts and the Z-axis feed mechanism through the configuration of the Z-axis cooperating part so that the three-axis parallel movement of the pair of guide posts and the Z-

In addition, the present invention improves work efficiency by eliminating the troubles of installing a conventional Z-axis moving device through a joint for each axis and difficulty in matching parallelism due to manual operation.

FIG. 1 is a perspective view of one direction showing the prior art,
FIG. 2 is a perspective view of a 3D printer including a Z-axis linked portion according to an exemplary embodiment of the present invention,
Fig. 3 is a perspective view in one direction showing that one fixing plate is applied to only the upper part of the frame part in Fig. 2,
Fig. 4 is a perspective view in one direction showing that one fixing plate is applied to only a lower portion of the frame portion in Fig. 2,
Fig. 5 is a perspective view in one direction showing that the two pairs of fixing plates of Fig. 2 are applied to the upper and lower portions of the frame portion, Fig.
Fig. 6 is a front view in one direction of Fig. 2,
Fig. 7 is a side view of the nozzle, the heat block, and the feed roll, the injection unit, and the filament separating member of Fig. 2 in one direction.

The components constituting the 3D printer including the Z-axis linked portion of the present invention may be used integrally or individually. In addition, some components may be omitted depending on the usage form.

A preferred embodiment of the 3D printer 100 including the Z-axis linked portion according to the present invention will be described with reference to Figs. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, the definitions of these terms should be described based on the contents throughout this specification.

The terms 'X-axis' and 'Y-axis' used in the present invention define the controller 150 of FIG. 2 in the horizontal and vertical directions, respectively, when viewed from the front.

In addition, the term 'Z axis' used in the present invention defines the work table 133e of FIG. 2 in the vertical direction in a state viewed from above, throughout the specification.

1. Description of components

Hereinafter, a 3D printer 100 including a Z-axis interlocking unit according to an embodiment of the present invention will be described with reference to FIGS. 2 to 7 as follows.

The 3D printer 100 including the Z-axis interlocking unit according to an embodiment of the present invention includes a frame 110, a body 120, an axis interlock 130, a filament supply module 140, a controller 150, A chamber 160, a temperature controller 170, and a controller 180.

The frame part 110 is a shape in which the rectangular pipe is formed in a rectangular shape in a direction perpendicular to the vertex of the square pipe.

A body part 120 is connected to one end of the elongated square pipe. The frame interlock part 130, the filament supply module 140, and the controller 150 are mounted on the frame part 110.

The body part 120 has a hexahedral shape and is connected to one end of the elongated square pipe to support the frame part 110.

The X-axis interlocking part 130 is connected to the frame part 110 and moves in the X-axis, the Y-axis and the Z-axis. And a Z-axis interlocking portion 133.

The X-axis interlocking portion 131 includes a movable block 131a and a movable block guide rail 131b.

The movable block 131a is inserted into the movable block guide rail 131b connecting the upper portion of the frame portion 110 and moves in the Y axis direction along the movable block guide rail 131b.

The movable block guide rails 131b are arranged to connect the upper portion of the frame portion 110 so that the movable block 131a moves in the Y-axis direction, but does not deviate from the track.

The Y-axis interlocking portion 132 includes a linear block 132a and a linear block guide rail 132b.

The linear block 132a is disposed on the linear block guide rail 131b and moves in the X-axis direction.

The linear block guide rails 132b are disposed on the upper portion of the movable block 131a in the X axis direction perpendicular to the movable block guide rails 131b. Move in the X-axis direction, but guide the track so that it does not deviate.

The Z-axis interlocking portion 133 includes a fixed plate 133a, a Z-axis feed mechanism 133b, a guide post 133c, a guide joint 133d, a work table 133e, and a lift plate 133f.

One or more fixing plates 133a may be fixed to the upper portion or the lower portion of the frame portion 110, and one example of the pair of the fixing plates 133a is shown in Fig.

One fixing plate 133a disposed and fixed to the upper portion of the frame 110 fixes one end of the pair of guide posts 133c and is fixed to the lower portion of the frame 110, Fixing plate 133a fixes the other end of the pair of guide posts 133c and the Z-axis feed mechanism 133b.

3, the fixing plate 133a is installed only on the upper portion of the frame 110 and includes a Z-axis feed mechanism 133b and a pair of guide posts 133c on one side of the body 120, May be directly fixed.

4, the fixing plate 133a is installed on only one side of the body part 120, and a Z-axis feed mechanism 133b and a pair of guide posts 133c ) Can be directly fixed.

5, the fixing plate 133a may be fixed to both the upper and lower corners of the frame 110 in consideration of the weight of the lifting plate 133f. At this time, the fixing plate 133a ) Can be applied as needed.

The Z axis feed mechanism 133b is disposed between the pair of guide posts 133c and the work table 133e and the lift plate 133f are movable in the Z axis direction by the Z axis feed mechanism 133b.

The guide post 133c connects the pair of fixing plates 133a and is formed as a pair. The guide post 133c guides the work table 133e and the lifting plate 133f so that they can move only in the Z axis direction by guiding the work table 133e and the lifting plate 133f so as not to move laterally when moving along the Z axis.

The guide joint 133d is fixed to the work table 133e so as to be inserted into the pair of guide posts 133c, and the lift plate 133f moves and is formed as a pair. The guide joint 133d moves along the pair of guide posts 133c to support the work table 133e and the lift plate 133f in parallel to the Z axis only.

The work table 133e is located inside the frame portion 110 and is disposed on the upper portion of the lift plate 133f. The liquefied filament 50 injected from the nozzle 142 is laminated on the work table 133e to form a three-dimensional object.

Here, a separate material for removing the three-dimensional object after molding may be attached to the surface of the work table 133e.

The lifting plate 133f is positioned below the work table 133e and is inserted into the pair of guide posts 133c and the Z-axis feed mechanism 133b to be vertically reciprocated in the Z-axis direction.

The filament supply module 140 is mounted on the frame 110 and the body 120 to supply the filament 50. The filament supply module 140 includes an extruder 141, And includes a block 143, a filament supply reel 144, a guide tube 145, an injection portion 146, and a filament separating member 147.

The extruder 141 is mounted on a side portion of the frame portion 110 and includes a feed roll 141a for feeding the filament 50. [

The nozzle 142 is disposed inside the heat block 143, and the liquefied filament 50 is injected onto the work table 133e.

Further, the diameter of the nozzle 142 may be 0.4 mm or 0.8 mm, and the accuracy of the three-dimensional object is determined according to the diameter. The nozzle 142 includes a nozzle body 142a vertically inserted and fixed inside the heat block 143, a nozzle head 142b positioned on the other side of the nozzle body 142a, a nozzle 142b connected to the guide tube 145, An introduction hole 142c located at one side of the body 142a and a lead-out hole 142d formed through the nozzle head 142b.

The heat block 143 is arranged to surround the linear block 132a and the heat block 143 is connected to the filament 50 ) Is liquefied by heating.

The filament supply reel 144 is mounted on one side of the body part 120 and is disposed with the filament 50 being rotatable so that the filament 50 can be constantly supplied.

The guide tube 145 communicates with the extruder 141 and the nozzle 142. The filament 50 is inserted into the guide tube 145 and serves as a passage through which the nozzle 142 can be moved.

The injection unit 146 is connected to one side of the nozzle 142 and the guide tube 145 is inserted into the injection unit 146 as shown in FIG. At this time, the material of the injection part 146 is preferably PEEK, but is not limited thereto.

The filament separating member 147 is a Teflon material that surrounds the inner surface of the injection unit 146. The filament separating member 147 may be mounted on the inner surface of the injection section 146 in the form of a tube or may be coated on the inner surface of the injection section 146.

The filament separating member 147 plays an important role in helping the filament to be smoothly conveyed to the nozzle 142 by the feed roll 141a without sticking to the injection portion 146 even when the heat block 143 is heated .

2, the controller 150 is disposed at a corner portion where the frame 110 and the body 120 contact with each other. The controller 150 includes an axis interlock 130 and a filament supply module 140, So that each operation can be controlled and controlled.

The chamber 160 is a cube surrounding the frame 110 and the body 120, and the inside of the chamber 160 may be formed in a vacuum. The chamber 160 is preferably made of a closed type, and a temperature control unit 170 is disposed inside the chamber 160.

The temperature regulator 170 is located inside the chamber 160. The temperature regulator 170 includes a heater 171 and a temperature sensor 172. [

The heater 171 is a general device for electrically raising the temperature. The heater 171 is located in the chamber 160 and serves to raise the temperature inside the chamber 160.

The temperature sensor 172 is electrically connected to the heater 171 to sense the temperature inside the chamber 160 and the signal sensed by the temperature sensor 172 is transmitted to the controller 180.

The controller 180 is electrically connected to the heater 171 and the temperature sensor 172. The controller 180 controls the ON / OFF of the heater 171 after receiving the signal sensed by the temperature sensor 172 Thereby maintaining a predetermined temperature inside the chamber 160. [

At this time, it is particularly preferable that the predetermined temperature is within 100 DEG C, but it is not limited thereto.

2. How it works

Hereinafter, the operation of the FDM 3D printer will be described in detail with reference to FIGS. 2 to 7. FIG.

The filament is formed by threading the raw material of the 3D printer into a long thread. Here, the raw material of the 3D printer can be any thermoplastic material, and ABS, PLA and the like can be used.

The extruder pushes the filament 50 to a nozzle and a heat block.

The heat block 143 is a device for heating the nozzle 142 to melt the filament and the nozzle 142 is a hole through which the filament 50 melted by the heat block 143 comes out. The 3D printer controls the position of the nozzle 142 to produce a product by stacking the raw materials extruded into the nozzle 142.

Here, the 3D printer may include a space for producing a product. This is called a box, and is defined as a frame unit 110 in the present invention. The nozzle 142 can move in three dimensions in the box and accumulate the raw material at a predetermined position under the control of the controller 150.

In general, the box can have the shape of a hexahedron. In this case, the controller 150 for controlling the position of the 3D printer may be disposed in a box of a hexahedron shape.

According to one aspect, the nozzle 142 of the 3D printer can be controlled in three axes of X-axis, Y-axis, and Z-axis. Also, the control devices for controlling each axis may be located on one side in a box of a hexahedron shape. For example, to smoothly process the Z-axis in a box, such as a profile, three axes can be machined into one plate. If all three axes are attached to the profile and the three axes are arranged in three stages, the parallelism of the three axes can be made easier than in the case of machining each axis. Therefore, processing using a 3D printer can be performed more quickly, and a more precise product can be manufactured.

The method according to an embodiment may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

10: Feeding device
11: Support
12: Color imparting device
20: Inkjet nozzle
50: filament
100: 3D printer including Z-axis linked part
110:
120:
130:
131: X-axis interlocking part
131a: movable block
131b: movable block guide rail
132: Y-axis interlocking part
132a: Linear block
132b: linear block guide rail
133: Z-axis interlocking part
133a: Fixing plate
133b: Z-axis feed mechanism
133c: Guide post
133d: guide joint
133e: Workbench
133f: lifting plate
140: filament supply module
141: Extruder
141a:
142: nozzle
142a: nozzle body
142b: nozzle head
142c: introduction ball
142d:
143: Heat block
144: filament supply reel
145: guide tube
146:
147: filament separating member
150: controller
160: chamber
170: Temperature control unit
171: Heater
172: Temperature sensor
180:

Claims (10)

A frame part;
A body portion supporting the frame portion;
An axis interlocking portion connected to the frame portion and moving in the X axis, the Y axis, and the Z axis; And
And a filament supply module mounted on the frame part and the body part to supply filaments,
Wherein the shaft interlocking portion includes at least one fixing plate fixed to an upper portion or a lower portion of the frame portion; A pair of guide posts connecting the at least one stationary plate; And a Z-axis feed mechanism disposed between the pair of guide posts.
A 3D printer comprising a Z-axis linked portion.
The method according to claim 1,
The Z-
bench;
A lift plate positioned at a lower portion of the work table and inserted into the pair of guide posts and the Z-axis feed mechanism and vertically reciprocating in the Z-axis direction; And
And a pair of guide joints fixed to the work table to guide movement of the elevating plate to be inserted into the pair of guide posts.
A 3D printer comprising a Z-axis linked portion.
The method according to claim 1,
Wherein the axis-
A movable block guide rail connecting an upper portion of the frame portion; And
And a movable block inserted in the movable block guide rail and moving in the Y axis direction along the movable block guide rail.
Y-axis interlocking portion,
A 3D printer comprising a Z-axis linked portion.
The method of claim 3,
Wherein the axis-
A linear block guide rail disposed on an upper portion of the movable block in an X-axis direction perpendicular to the movable block guide rail; And
And a linear block disposed on the linear block guide rail and moving in the X-axis direction.
X-axis interlocking portion,
A 3D printer comprising a Z-axis linked portion.
5. The method of claim 4,
The filament supply module includes:
An extruder mounted on a side of the frame, the extruder including a feed roll for feeding filaments;
A heat block arranged to surround the linear block;
A nozzle disposed inside the heat block;
A filament supply reel mounted on one side of the body portion and having the filament disposed therein; And
And a guide tube communicating with the nozzle.
A 3D printer comprising a Z-axis linked portion.
6. The method of claim 5,
The filament supply module includes:
An injection part communicating with one side of the nozzle and into which the guide tube is inserted; And
And a Teflon filament separating member surrounding the inner surface of the injection unit.
A 3D printer comprising a Z-axis linked portion.
7. The method according to any one of claims 1 to 6,
The heat block heats and liquefies the filaments conveyed along the guide tube by the transport roll of the extruder, and
Characterized in that the nozzle is such that the liquefied filaments are injected onto the work table,
A 3D printer comprising a Z-axis linked portion.
The method according to claim 1,
In the 3D printer,
An enclosed chamber surrounding the frame portion and the body portion; And
And a temperature control unit disposed in the chamber.
A 3D printer comprising a Z-axis linked portion.
9. The method of claim 8,
The temperature controller may include:
A heater positioned within the chamber to raise the temperature inside the chamber; And
And a temperature sensor electrically connected to the heater to sense a temperature inside the chamber.
A 3D printer comprising a Z-axis linked portion.
10. The method of claim 9,
The 3D printer further includes a control unit electrically connected to the heater and the temperature sensor,
Wherein the control unit controls the on / off of the heater after receiving the sensed signal from the temperature sensor to maintain a predetermined temperature inside the chamber.
A 3D printer comprising a Z-axis linked portion.

Images