WO2015115736A1 - 3d printer using shaft linear motor - Google Patents

3d printer using shaft linear motor

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Publication number
WO2015115736A1
WO2015115736A1 PCT/KR2014/012692 KR2014012692W WO2015115736A1 WO 2015115736 A1 WO2015115736 A1 WO 2015115736A1 KR 2014012692 W KR2014012692 W KR 2014012692W WO 2015115736 A1 WO2015115736 A1 WO 2015115736A1
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WO
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Application
Patent type
Prior art keywords
frame
coil
member
printing
linear
Prior art date
Application number
PCT/KR2014/012692
Other languages
French (fr)
Korean (ko)
Inventor
김홍윤
권영목
심호근
윤영민
Original Assignee
(주)티피씨 메카트로닉스
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10Processes of additive manufacturing
    • B29C64/106Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material

Abstract

The present invention relates to a 3D printer using a shaft linear motor, comprising: a worktable on which a 3D model is manufactured; a printing module for printing the 3D model on the worktable; and the shaft linear motor for printing, which linearly moves the printing module and/or the worktable, wherein the shaft linear motor for printing comprises: a stator unit which is provided in a linear movement direction of the printing module and/or the worktable so as to guide a linear movement of the printing module and/or the worktable and has a permanent magnet provided therein; a mover unit which is provided to cover the outer circumferential surface of the stator unit and linearly moves along the stator unit by means of electromagnetic force which is generated between the mover unit and the permanent magnet when current is applied; a frame unit having a coil accommodating space in which the mover unit is provided, and is connected to the printing module and/or the worktable so as to linearly move the printing module and/or the worktable according to the linear movement of the mover unit; and a fluid providing unit provided at one side of the frame unit so as to provide low-temperature fluid into the frame unit, thereby allowing the low-temperature fluid to flow into the inner space of the frame unit so as to cool heat generated from the stator unit and the mover unit.

Description

3D printer using a linear motor shaft

The present invention relates to a 3D printer, using a linear motor shaft, and more particularly, to a 3D printer, using a shaft linear motor capable of ensuring the operation precision and operation stability in a work process of a 3D model.

The 3D printer means an equipment for producing a 3D model, i.e. dimensional objects built up in machining, lamination methods (Layer-by-layer) materials such as liquid, powder form of the polymeric resin, metal converts the 3D design data. . 3D printing is a technology derived from the image in a number of RP (Rapid Prototyping) to utilize the material to belong means for stereolithography to produce, as an official technical terms are referred to in the stacking process (Additive Manufacturing), Additive Fab, Layer Mfg., Freeform Fab. And the like are used interchangeably.

Such a 3D printer can be classified according to their possible utilization in layered manufacturing method and a solid object material. For lamination method, extrusion (Extrusion) method, spraying (Jetting) scheme, photocurable (Light Polymerized) method, and the like, powder sintering (Granular Sintering) method, materials include polymers such as PLA, ABS, HDPE, metal, there is paper.

Here, the extrusion method is a method of molding by extruding the heated material at a high temperature through a fine nozzle. Injection is a method of forming by ejecting the liquid material of the high-voltage, photo-curing method is a method of solidifying the material by the polymerization reaction taking place in the photo-curable plastic by light irradiation, the powder sintering method is not higher than the melting point of the powder or a method of solidification by heat, so the partial melting occurs.

1 is a view for explaining the principle of a conventional extrusion method of a 3D printer. Referring to FIG. 1, in such a way that the 3D printer of the extrusion laminated material in such a manner as to output a fine thread, that the thermoplastic material of the filaments form a thin film form is dissolved in the nozzle 330, the nozzle 330 radiating a high temperature enough to melt the plastic and the plastic is cured at room temperature.

Being more specifically, is moved toward the nozzle 330 by a filament wound around the filament spool 310 to the extruder 320, the heated filament at the nozzle 330 is ejected from the nozzle 330 is laminated, the 3D models are produced.

These 3D printers such as extrusion method has a lower equipment cost and maintenance cost benefits simply because the structure and programs of the device compared to other methods. In addition, the development of an open source format, 3D printing technology has been leading the popularity and can be applied to a wide variety of materials and can be easily applied to a variety of industries and the possible advantages to large due to the simple structure.

On the other hand, the surface roughness is relatively low, the need detailed implementation flow shape support for preventing the falling of the material when there is insufficient disadvantages, cured, there is a disadvantage that production speed is relatively slow. However, 3D printers in the extrusion method is due to advantages such as the spread is easy for the home such as personal is expected to achieve the flagship of the future 3D printer market.

Here, in the case of the 3D printer, including a 3D printer of the extrusion, the extruder shown in Figure 1 for the production of 3D models, and so the printing module configured with a feeder to move in the X-axis and Y-axis direction, is responsible for the linear motion of the printing module the structure is provided. In some 3D printing it should be also installed structure that is responsible for the movement of the Z-axis direction.

A structure that is responsible for the linear motion is not suitable for the production of more sophisticated 3D models to the problem of repeatability and accuracy, there is the use of an electric motor is applied to the belt structure, due to the Backlash (Backlash) caused problems.

The object of this invention is to provide as, 3D printer, ensuring the repeatability and accuracy using a precision capable of manufacturing a shaft of a 3D model, a linear motor made in view of the above problems.

In addition, conventional rotary motor to solve the problem of the lowering of the cooling effect caused by cooling using a heat sink or a fan, a shaft linear motor in the same time and increase the accuracy of the reliability and operation of the work can extend the life span using there is still another object to provide a 3D printer.

In addition, there is yet another object to eliminate the problem of damage to a 3D model that is produced by opening a door provided in a 3D printer to provide a 3D printer, using a more stable 3D printing shaft linear motor operation is possible during the operation.

The above object is a according to the present invention, and the operation is a 3D model that produced the table, the printing shaft linear motor for which the printing module to print the 3D model on the work table, the linear movement of the printing module and at least one of the work table and comprising; Shaft for the printing, the linear motor is the printing module and are provided along at least one linear direction of movement of the work table and guiding the at least one linear movement of said work table, the printing module and, stator provided with permanent magnets inside and is provided to surround the outer peripheral surface of the stator, a current is applied when receiving coil by electromagnetic forces generated in the gap between the permanent magnet and the movable confident is installed on the movable female and, inside the linear movement along said stator and a frame part which is space is provided, wherein the printing module and are connected with at least one of said work table linearly moving the printing module and at least one of said work table in accordance with the linear movement of the movable confident, installed at one side of the frame portion It is, to provide a fluid of low temperature into the frame portion Including the systems studied; While the low temperature of the fluid flow inside the space above the frame parts is achieved by the 3D printer, using the above linear motor stator and the shaft, comprising a step of cooling the heat generated from the movable confident.

Here, installed on the other side of the frame portion may further include a flow control valve for controlling the flow rate of the fluid of the frame parts of the interior space.

In addition, the stator part is a hollow inside, is provided with a stator frame, a plurality of through-holes on the outer peripheral surface; And comprises the permanent magnet installed in the inner space of the stator frame, wherein the fluid of claim when the fluid supply of parts the frame in the study, the fluid flowing into the internal space the frame part by the plurality of through-holes via the movable confident through is introduced into the stator frame, it is possible to remove heat of the permanent magnet.

In addition, the stator frame may be made of aluminum.

Further, the high installation and the government frame so as to surround the outer periphery of the stator frame, a plurality of coil members has an annular cross section; And it is provided in the stator frame so as to be in contact closely with the annular end face of the coil member, may comprise a plurality of insulating members that are provided for each among the plurality of coil members.

In addition, the insulating member is an insulating plate having a ring shape corresponding to the end face of the coil member; And it may be made of an insulating guide formed to protrude on both sides of the insulating plate from the outer peripheral surface of the insulating plate.

Here, the frame member, the coil receiving space is provided, the movable frame to the outer portion, the fluid provides installed; A first coupling member coupled to the open side of the movable frame; And coupled to the other end opening of the movable frame and a second coupling member for closing the said coil housing space, to secure the position of the plurality of the coil member and the plurality of insulating members in said coil receiving space can.

And, the first engagement member is inserted into the coil receiving space, surrounding the coil members received in the coil receiving space being formed in the first projecting portion in contact with the insulating member, the first projection integral with the to cover the one side of the movable frame and comprise a first coupling body having a structure in which the stator frame through said first coupling body may be coupled to the movable frame bolting.

In addition, the first projection has an inner diameter larger than the outer diameter of the coil member, the outer diameter is having an annular cross section with an outer diameter smaller than the inner diameter of the coil receiving member, wherein the first projection has isolated the time of insertion as the coil receiving space may be in contact with the member applies a force to the insulating member preventing the occurrence of the gap (gap) between the plurality of the coil member and the plurality of insulating members.

And, the second engagement member is inserted into the coil receiving space, surrounding the coil members received in the coil receiving space being formed as a second projecting portion in contact with the insulating member, the second projection integral with the to cover the other side of the movable frame, and comprise a second coupling body with a structure in which the stator frame through the second coupling body may be coupled to the movable frame bolting.

In addition, the second projection is an inner diameter greater than the outer diameter of the coil member, the outer diameter is having an annular cross section with an outer diameter smaller than the inner diameter of the coil receiving member, wherein the second projection is isolated the time of insertion as the coil receiving space may be in contact with the member applies a force to the insulating member preventing the occurrence of the gap (gap) between the plurality of the coil member and the plurality of insulating members.

Here, the work table and lock of the housing space which accommodates the printing module is formed, a door for opening and closing the main frame and the opening in the main frame having an opening a front is opened, and lock and unlock the door further comprising a shaft for a linear motor, and; The lock shaft linear motors is, to surround the movable for locking of the cylindrical permanent magnet is accommodated for locking therein chair module and the outer peripheral surface of the lock the movable module is provided on the door, the permanent for when the lock current is supplied, It is received within the coil for generating an electromagnetic force between the magnet and comprising a lock stator module to move linearly by the electromagnetic force of the movable locking module; The main frame is formed in the lock 02 the locking movable module to be inserted and the insertion release said lock movable module in accordance with the current applied to the lock stator module is turned off, insert and inserted into the locking hole of the door the can lock and unlock.

The control from the work table for controlling the lock shaft linear motor for the 3D model, and to control the printing module and the printing shaft linear motor for the printing, the printing of the door during operation of the 3D model so that it is locked, the may further include.

And according to the configuration described above, according to the present invention, the shaft linear due to the implementation of a linear motion by the motor backlash (Backlash) in linear motion by a conventional pulley gear is removed high repeatability with a simplified structure, precision, the 3D printer with high accuracy, and high speed, and the acceleration is improved production speed shaft linear motor due to is provided.

In addition, directly supplying the fluid of low temperature to the movable confident of the printing shaft linear motor according to absorbed by the heat generated upon operation of the movable confident in the low temperature fluid, it is possible to cool the heating coil, thereby for printing to improve the efficiency of the linear motor shaft it is possible to improve the accuracy and reliability of the operation of the 3D printing operation.

In addition, by cooling the coil to generate heat of a high temperature, to reduce the degradation of the coil member by the heat generated in the coil member at the time of electric current applied to the coil member by reducing the failure frequency of the stator and the movable confident, whole 3D printer the life can be extended.

1 is a view for explaining the principle of a conventional extrusion method of a 3D printer,

2 is a perspective view of the 3D printer, according to the invention,

3 is a view for explaining the internal structure of the 3D printer shown in Figure 2,

Figure 4 is a diagram for explaining the printing shaft linear motor for the 3D printer, according to the invention,

5 is a view schematically showing a connection between the printing shaft structure of a linear motor element for the 3D printer, according to the invention,

6 is a simplified view of the exploded perspective view of the printing shaft linear motor for the 3D printer, according to the invention,

7 is a diagram illustrating a perspective view of the operation of printing the female shaft linear motor for the 3D printer, according to the invention,

Figure 8 is a view for explaining an operating state of the lock shaft linear motor for the 3D printer, according to the present invention.

3D printer using the shaft linear motor according to the present invention for printing the work table, the printing module and the printing module and at least one of said work table for printing a 3D model on the work table is a 3D modeling of moving straight It includes a linear motor and shaft; Shaft for the printing, the linear motor is the printing module and are provided along at least one linear direction of movement of the work table and guiding the at least one linear movement of said work table, the printing module and, stator provided with permanent magnets inside and is provided to surround the outer peripheral surface of the stator, a current is applied when receiving coil by electromagnetic forces generated in the gap between the permanent magnet and the movable confident is installed on the movable female and, inside the linear movement along said stator and a frame part which is space is provided, wherein the printing module and are connected with at least one of said work table linearly moving the printing module and at least one of said work table in accordance with the linear movement of the movable confident, installed at one side of the frame portion It is, to provide a fluid of low temperature into the frame portion Including the systems studied; It characterized in that the low temperature fluid to flow, while the space inside the frame portion to cool the heat generated in the stator and the movable confident.

Hereinafter, it will be explained in detail embodiments according to the present invention with reference to the accompanying drawings.

2 is a view for explaining an internal structure of a 3D printer (1) shown in a perspective view, and Figure 3 is a diagram of a 3D printer (1) according to the present invention. Referring to Figures 2 and 3, 3D printer (1) according to the invention comprises a main frame 10, a door 20, a printing module 30 and a printing shaft linear motor 100 for .

The main frame 10 is provided in a substantially rectangular shape, is a housing space formed therein to accommodate the components such as the printing module 30 and the printing shaft linear motor (100). Then, the front has an open aperture of the body frame 10 is formed by a door 20 opening and closing the opening, a 3D model produced by 3D printing operations through the door 20 can be moved to the outside.

Here, if the location of the shape and the door 20 of the technical idea is the main frame 10 of the present invention those skilled in the art, but is not limited to two, and the configuration depicted in Figure 3 in a variety of forms based on the technical concept of the present invention that is, of course, it is produced.

A lower portion of the main frame 10. The work table 40 to be a 3D model seat produced by a printing module 30 is formed, and printing in a state of being spaced apart from the work table 40 to the top of the work table 40 the module 30 is provided.

Printing module 30 for printing 3D printing models on the work table (40). 3D printer (1) according to the invention the filament to move by a (not shown) extruder to move the bar, the printing module 30 for example, be the 3D printer (1) of an extrusion method is the filament 50 and the extruders ( 50) may include a nozzle (not shown) to heat by discharging.

Here, the construction of the printing module 30 is a bar that can be prepared in various forms known in the group, and a detailed description thereof will be omitted herein. Further, as this is one example of using the invention, the 3D printer (1) is an extrusion method for example, when applied to the 3D printer (1) in different ways printing module 30 will contain the components according to the method.

On the other hand, the printing shaft linear motor 100 includes a linearly reciprocating at least one of a printing module 30 and the work table (40). In the present invention, the printing shaft linear motor 100, a printing module 30, the X-axis direction and the Y is provided so as to linearly move in the axial direction, the printing shaft linear motor 100 for the work table 40 for the Z axis and that for linear movement in a direction as an example.

Here, the reference, reference number 110a in Fig. 3 is bayida guide for guiding the linear movement of the printing module 30 and the work table 40.

Hereinafter, with reference to Figures 4 to 7 will be described in detail printing shaft linear motor according to the present invention.

A, an exemplary printing shaft linear motor 100 according to the embodiment of the present invention as shown in Figure 4 and the stator 110, the movable portion (120), the frame unit 130, fluid provider 140 and a flow control valve 150.

Stator 110 in accordance with one embodiment of the present invention is installed in the body frame 10 in a straight line direction of movement of the printing module 30 and the work table 40, the printing module 30 and the work table (40 ) guides the linear movement.

Stator 110 according to the present invention includes a stator frame 111 and permanent magnets 113. The A stator frame in accordance with one embodiment of the present invention 111 is provided with a plurality of through-holes 112 on the outer peripheral surface as shown in Fig.

Here, the plurality of the through-hole 112 is communicated with possible openings and the internal space of the stator frame (111). In one embodiment of the invention, the stator frame 111 is preferably made of aluminum.

In one embodiment of the invention, the inner space of the stator frame 111 is provided with a permanent magnet 113 is N pole and the S pole are arranged sequentially. Works with the arrangement, and stator 110 and the movable portion (120) of the permanent magnet 113 is installed on the stator frame 111 is the technology bar, herein it is within the scope apparent from those skilled in the admission thereto of specific Description will be omitted.

In one embodiment of the present invention, description will be made on the movable portion (120) and the frame part 130.

As shown in Figs. 5 to 7, the movable portion (120) in accordance with one embodiment of the present invention comprises a plurality of coil members 121 and the plurality of insulating members (122). Here, the movable portion (120) is a member for movement along the length of a straight line direction of the stator frame is provided so as to surround the periphery of 111, and coil member 121 is a stator frame 111. When current is applied to.

In one embodiment of the invention, the plurality of coil member 121 is provided on the stator frame 111 so as to surround the outer periphery of the stator frame 111. In this embodiment, a member for generating an electromagnetic force for a plurality of the coil member 121 is a permanent magnet 113 provided on the stator 110. When electric current is applied.

6, the coil member 121 in accordance with one embodiment of the present invention preferably has a cylindrical configuration having a predetermined thickness according to the degree of having an annular cross-section, wound coil.

The coil member 121 in accordance with one embodiment of the present invention has a structure in which a stator frame 111, the through. Accordingly, the inner diameter of the coil member 121 in accordance with one embodiment of the present invention preferably has a diameter larger than the outer diameter of the stator frame (111).

The coil member 121 in accordance with one embodiment of the present invention, the stator frame insert is, long stator frame 111 to be movable along the direction of the coil member 121, the stator frame 111 when the current applied to the 111 it is installed on is preferred. The insulating member 122 provided between the plurality of coil member 121 as shown in Figure 7 is arranged.

6 and 7, the In one embodiment of the invention, the plurality of the insulating member 122 is provided for each among a plurality of coil member 121.

It is installed on the stator frame 111 so as to closely contact with the annular end surface of the plurality of the coil member 121, a member for the current of the coil member 121 from being directly transferred to the stator frame 111.

That is, in one embodiment of the present invention, the plurality of the insulating member 122 is any one of the coil member 121 is provided between the plurality of the coil member 121, and defining a plurality of coil member 121, flowing no electric current is affected by the coil member 121 located adjacent thereto, and at the same time, on to prevent the plurality of the coil member 121 is directly in contact with the stator frame 111, the coil member 121 the flowing current can not be delivered to a stator frame (111).

In one embodiment of the present invention, the insulating member 122 is made of an insulating plate (122a) and the insulating guide (122b).

6, the insulating plate (122a) according to one embodiment of the present invention preferably has a ring structure corresponding to the cross section of the coil member 121. The inner diameter of the insulating plate (122a) preferably has a diameter larger than the outer diameter of the stator frame (111).

In one embodiment of the invention, the outer diameter of the insulating plate (122a) preferably has a diameter equal to the outer diameter of the coil member 121. Then, the outer peripheral surface of the insulating plate (122a) are formed in the insulating guides (122b).

In one embodiment of the invention, the insulating guide (122b) is preferably formed to protrude on both sides of the insulating plate (122a) from the outer peripheral surface of the insulating plate (122a). When it is installed between one of the insulating member 122, the two coil members 121, the insulating plate (122a) is in contact closely with the sides of two coil members 121, the adjacent location, the insulating guide (122b ) is preferably provided so as to surround the outer peripheral portion of the two coil members 121.

Hereinafter, description will be made on the frame part 130.

In one embodiment of the invention, the frame unit 130, a printing module according to the, is connected to the printing module 30 and the work table 40, linear movement of the movable portion (120) as shown in Figure 3 ( 30) and the work table 40 to move linearly.

Then, the frame portion 130 is a member for fixing the movable portion (120). That is, closing the frame portion 130 comprises a coil receiving space in a state a plurality of coil members 121 and the plurality of the insulating member 122 is received in the coil receiving space 132, 132 in accordance with one embodiment of the present invention and a member for securing the arrangement between the plurality of coil members 121 and the plurality of insulating members (122).

6 and 7, the frame unit 130 in accordance with one embodiment of the present invention includes a movable frame 131, the first coupling member 133 and the second coupling member 137 .

One embodiment the movable frame 131 according to the embodiment of the present invention is a member provided with a coil receiving space 132 therein, a coil receiving space 132 has a structure capable of communication with the outside. Here, the coil receiving space 132, preferably with a space where the coil member 11 and the insulating member 122 is installed, a cylindrical shape.

At this time, the inner diameter of the movable frame 131 is preferably has a diameter larger than the outer diameter of the coil member 121 and the insulating member 122. And, in one embodiment of the present invention, the movable frame 131, it is preferable that the current applied to the coil member 121 made of an insulating material does not flow.

In one embodiment of the invention, the fluid inlet opening (131a) and fluid outflow openings (131b) has an outer surface with a structure that is in communication with the coil receiving space 132 of the movable frame 131 is provided. Here, the fluid inlet opening (131a) of the fluid supply unit 140 is connected. Then, the fluid outlet opening (131b) is provided with a flow control valve 150. For the fluid supply unit 140 and the flow control valve 150 will be described later.

On the other hand, a member which is coupled to one side according to the embodiment of the invention, the first coupling member 133 comprises a coil receiving space mover ever closing the open side of the 132 frame 131. The In one embodiment of the present invention, the first coupling member 133 comprises a first projection 134 and the first coupling body 135 is inserted into the coil receiving space 132.

In this embodiment, the first as the protrusion 134 is provided to protrude from one side of the first coupling body 135, the inner diameter is larger than the coil outer diameter and an outer diameter of the coil receiving smaller annular section than the diameter of the space (132) it is preferred with.

Accordingly, when the first engagement member 133 in accordance with one embodiment of the present invention to be installed on the movable frame 131, the first projection 134 has a first projection 134, the inner circumferential surface a first coupling member of the surrounding the outer periphery of the coil member 121 is located adjacent the section 133, vertical cross-sectional view of the first projection 134 is provided to engage the one side of the insulating guide (122b) of the insulating member (122). At this time, the first projection 134 is preferably fitted on the coil receiving space 132 of the movable frame (131).

In one embodiment of the invention, the first coupling body (135) preferably having a structure that covers a side of the first projection 134 and is integrally formed, the movable frame 131. Moreover, the external appearance of the first coupling body (135) in accordance with one embodiment of the present invention preferably has a structure corresponding to the appearance of the movable frame (131).

A first coupling body 135, it is preferable that the stator frame 111 is provided with the body through-hole (135a) penetrating. In one embodiment of the invention, the first coupling body 135 is preferably coupled to the bolting movable frame 131 by a bolt 136. The

On the other hand, according to one embodiment of the invention, the second coupling member 137 comprises a second projection 138 and the second coupling body 139 is inserted into the coil receiving space 132.

In this embodiment, the second projection 138 of the second coupling as provided to protrude from one side of the body 139, the inner diameter is larger than the coil outer diameter and an outer diameter of the coil receiving smaller annular section than the diameter of the space (132) it is preferred with.

Accordingly, when the second coupling member 137 in accordance with one embodiment of the present invention to be installed on the movable frame 131, the second projection 138 of the second inner peripheral surface of the second coupling member of the projection 138 surrounding the outer periphery of the coil member 121 located adjacent to the (137), a longitudinal sectional view of the second projection 138 is provided to engage the one side of the insulating guide (122b) of the insulating member (122). At this time, the second projection 138 is preferably fitted on the coil receiving space 132 of the movable frame (131).

In one embodiment of the invention, the second engagement body (139) preferably having a structure that covers the other side of the second projection 138 and is integrally formed, the movable frame 131. Moreover, the external appearance of the second coupling body 139, in accordance with one embodiment of the present invention preferably has a structure corresponding to the appearance of the movable frame 131, similarly to the above first coupling body (135).

The second coupling body 139, it is preferable that the stator frame 111 is provided with the body through-hole (139a) penetrating. In one embodiment of the invention, the second coupling body 139 is preferably coupled to the bolting movable frame 131 by a bolt 136. The

Hereinafter, with reference to FIGS. 4 to 6, description will be made on the fluid supply unit 140 and the flux control valve 150 according to one embodiment of the invention.

4, the fluid supply unit 140 is connected to the fluid inlet opening (131a) provided on the outer side of the movable frame 131 by the fluid provided tube, the movable frame 131 at a predetermined pressure a coil receiving space 132 is a member for providing a fluid of low temperature. Roneun fluid supply unit 140 according to the embodiment of the present invention, the pneumatic pump may be used. However, it not necessarily limited to this.

In one embodiment of the present invention, may be used the air in the fluid is at room temperature a low temperature, if the fluid which can easily cool the coil member 121 is heated at the position of each work area of ​​various not put a limitation on the type of fluid it can be variable.

Provided in the printing shaft linear motor 100 according to an embodiment of the present invention, the coil receiving space 132 of the fluid supply unit 140. In operation, the fluid providing the movable frame 131 in 140 of as the fluid is in contact with the plurality of coil member 121 received in the coil receiving space 132, by absorbing heat of the coil member 121 serves to cool the coil member 121.

Further, the coil receiving a fluid flows into the space 132 is not to cool only the coil member 121, flows into the inner space of the stator frame 111 through a plurality of through holes 112 provided on the stator frame 111 It is, while in contact with the permanent magnet 113, by absorbing heat of the permanent magnet 113, serves to cool the permanent magnet 113 at the same time.

Fluid according to one embodiment of the present invention providing unit 140 is connected to the frame 130 for protecting the movable portion (120), the heated substantially above 100 ℃ during operation of the printing shaft linear motor 100 for the coil provided directly to the fluid of low temperature to the member 121, absorbs heat in the coil member 121 of the high-temperature state, and absorbs heat from the permanent magnet 113 is heated by the heat generated in the coil member 121 Thereby, it is possible to cool by the movable portion (120) and the stator (110), improving the operating efficiency of the printing shaft linear motor (100).

On the other hand, the flow control valve 150 in accordance with one embodiment of the present invention is connected to a fluid outlet opening (131b). In one embodiment of the invention, the flow control valve 150 is a member for regulating the amount of fluid flowing into the movable frame 131 through the fluid supply unit (140). That is, the amount of In one embodiment of the invention the flow control fluid flows into the valve 150, a coil receiving space 132 of the fluid outlet opening to adjust the degree of opening and, movable frame 131 of the (131b) It can be adjusted.

On the other hand, 3D printer (1) according to the present invention may further include a locking and unlocking the lock shaft linear motor 200 for that for the door 20 to the main body frame 10. Figure 8 is a view for explaining an operating state of the lock shaft linear motor 200 for the 3D printer (1) according to the present invention.

Referring to FIG. 8, the locking shaft linear motor 200 according to the present invention may include a movable locking module 220, and lock the stator module 210 for.

Movable locking module 220 has a cylindrical shape in which a permanent magnet (not shown) for receiving the lock therein. Then, the stator modules 210 for locking is provided on the door 20 so as to surround the outer circumferential surface of the movable lock module 220 for. Then, when the application of current to lock the stator module 210 is accommodated inside the coil (not shown), the stator modules 210 are locked to generate an electromagnetic force between itself and lock the permanent magnet, the movable locking by the electromagnetic force a chair module 220 is moved linearly.

Here, the main frame 10 has, as shown in Figure 8, the movable module 220 for locking is formed on the locking ball 11 to be off insert, and insert the current applied to the lock stator modules 210 locking the movable module 220 is turned off for in accordance with the insert and inserted into the locking hole 11, thereby releasing the door 20 is locked and lock.

Here, the function, that the control unit (not shown) for controlling the printing module 30 and the printing shaft linear motor (100) such that the 3D model printing in the work table 40 of the 3D printer (1) according to the invention when the printing operation of the 3D model may door 20 controls the lock shaft linear motors 200 are such that the locked state.

This being over, 3D printing in the work process blocked by opening the automatic door 20, the door 20 is open due to a mistake, such as it is possible to prevent the disasters that can happen to damage or operator of a 3D model that you are working on.

The present invention described above is not limited by the embodiments described above and the accompanying drawings, various substitutions may be made without departing from the scope of the present invention, modifications and changes are possible it is conventional in the art it will be apparent to a person of knowledge.

<Explanation of symbols>

1: 3D printer 10: body frame,

20: 30 doors: printing module

40: Tables

100: Printing shaft linear motor 110: stator

120: movable confident 130: frame portion

131: movable frame 131a: a fluid inlet opening

131b: the fluid outlet opening 115. The first coupling member

134: first protrusion 135: first coupling body

137: second coupling member 138: second protrusion

139: second coupling body 140: a fluid supply unit

150: Flow control valve

200: lock shaft linear motor 210 for: a stator module for locking

220: locking the movable module

The invention in the equipment of a 3D printer for producing 3D models, i.e. solid object stacked in machining, lamination methods (Layer-by-layer) materials such as liquid, powder form of the polymeric resin, metal converts the 3D design data, it is applicable.

Claims (13)

  1. And a work table 3D models are produced,
    And a printing module for printing 3D models on the work table,
    The printing module and a printing shaft linear motor for linear movement of the at least one of said work table;
    The printing shaft linear motor is
    And a stator provided with a permanent magnet inside is provided along the printing module and the work table of the at least one linear direction of movement and guiding the at least one straight-line movement of the worktable and the printing module,
    And by electromagnetic force generated between itself and the application is installed to surround the outer peripheral surface of the stator, a current when the permanent magnet movable confident that straight-line movement along the stator,
    And a coil receiving space in which the movable confident installation provided inside, are connected to the printing module and at least one of said work table to move linearly at least one of the printing modules and the work table in accordance with the linear movement of the movable confident and a frame portion,
    It is installed on one side of the frame parts, including parts of the fluid provided to provide a fluid of low temperature into the inside of the frame section;
    The low temperature fluid is of a 3D printer using a linear motor shaft, characterized in that while the inner flow space the frame portion to cool the heat generated in the stator and the movable confident.
  2. According to claim 1,
    Is installed on the other side of the frame portion, 3D printer using a linear motor shaft, characterized in that it further comprises a flow control valve for controlling the flow rate of the fluid of the frame parts of the interior space.
  3. According to claim 1,
    The stator unit
    A stator frame inside is hollow, provided with a plurality of through-holes on the outer peripheral surface; And
    And including the permanent magnet installed in the inner space of the stator frame,
    In the fluid providing a fluid inlet to the fluid supply when the internal space of said frame of a portion the frame is introduced into the stator frame via the plurality of through-holes via the movable confident, the heat of the permanent magnet 3D printer using a linear motor shaft, characterized in that to remove.
  4. According to claim 1,
    The stator frame is a 3D printer using a linear motor shaft, characterized in that made of aluminum.
  5. According to claim 1,
    Wherein the female is movable,
    And the installation and the state frame so as to surround the outer periphery of the stator frame, a plurality of coil members has an annular cross section; And
    The coil is provided on the stator frame members so as to closely contact with the annular end surface, 3D printer using a shaft linear motor comprising a plurality of insulating members that are provided for each among the plurality of coil members.
  6. 6. The method of claim 5,
    The insulating member is,
    An insulating plate having a ring shape corresponding to the end face of the coil member; And
    The 3D printer isolated from the outer circumferential surface of the plate with the shaft linear motor which comprises an insulating guide formed to protrude on both sides of the insulating plate.
  7. According to claim 1,
    The frame member,
    The coil receiving space is provided, the movable frame to the outer portion, the fluid provides installed;
    A first coupling member coupled to the open side of the movable frame; And
    It is coupled to the other end opening of the movable frame to fix the position of the plurality of the coil member and the plurality of the insulating member in a second including a coupling member, accommodating the coil space for closing the coil receiving space 3D printer using the shaft linear motor according to claim.
  8. The method of claim 7,
    The first engagement member,
    And a first projection is inserted into the coil receiving space, surrounding the coil members received in the coil receiving space in contact with the insulating member,
    The second is formed of a first projection integral with, to cover the side of the movable frame and comprise a first coupling body having a structure in which the stator frame with a through,
    The first engagement body 3D printer using a linear motor shaft, characterized in that the bolting coupled to the movable frame.
  9. The method of claim 8,
    Wherein the first projection has an inner diameter larger than the outer diameter of the coil member, the outer diameter has an annular cross section with an outer diameter smaller than the inner diameter of the coil receiving member,
    Wherein the first projection is characterized in that while in contact with the insulating member during insertion as the coil receiving space by applying a force to the insulating member preventing the occurrence of the gap (gap) between the plurality of the coil member and the plurality of insulating members 3D printer using a shaft linear motor.
  10. The method of claim 7,
    The second engagement member,
    And the second projection is inserted into the coil receiving space, surrounding the coil members received in the coil receiving space in contact with the insulating member,
    The second is formed from a second projection integral with, to cover the other side of the movable frame, and comprise a second coupling body with a structure in which the stator frame through the second coupling body is bolted to the movable frame, 3D printer using a linear motor shaft, characterized in that the coupling.
  11. 11. The method of claim 10,
    The second projection has an inner diameter larger than the outer diameter of the coil member, the outer diameter has an annular cross section with an outer diameter smaller than the inner diameter of the coil receiving member,
    It said second projection is characterized in that while in contact with the insulating member during insertion as the coil receiving space by applying a force to the insulating member preventing the occurrence of the gap (gap) between the plurality of the coil member and the plurality of insulating members 3D printer using a shaft linear motor.
  12. According to claim 1,
    Wherein the work table and the receiving spaces accommodating the printing module is formed, the body frame having a front opening is open and,
    And a door for opening and closing the opening portion of the main frame,
    Further comprising a locking shaft for a linear motor to lock and unlock the door, and;
    The lock shaft linear motors, the
    And a movable module of the cylindrical lock the permanent magnet is accommodated for locking therein,
    The locking mover to surround the outer circumferential surface of the module is installed in the door, the coil for generating an electromagnetic force between the current applied when the permanent magnets for the lock is housed inside, movable modules for the locking by the electromagnetic force for the lock comprises a stator module to move linearly;
    The main frame is formed in the lock 02 the locking movable module to be inserted and the insertion release said lock movable module in accordance with the current applied to the lock stator module is turned off, insert and inserted into the locking hole of the door 3D printers using a linear motor shaft, comprising a step of unlocking and locking.
  13. 13. The method of claim 12,
    In the work table, and it controls the printing module and the printing shaft linear motor such that the 3D model printing, the control unit further controlling said lock shaft linear motor for printing the door during operation of the 3D model so that it is locked, 3D printer using a linear motor shaft, characterized in that it comprises.
PCT/KR2014/012692 2014-02-03 2014-12-23 3d printer using shaft linear motor WO2015115736A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR10-2014-0012082 2014-02-03
KR20140012082 2014-02-03

Publications (1)

Publication Number Publication Date
WO2015115736A1 true true WO2015115736A1 (en) 2015-08-06

Family

ID=53757282

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2014/012692 WO2015115736A1 (en) 2014-02-03 2014-12-23 3d printer using shaft linear motor

Country Status (1)

Country Link
WO (1) WO2015115736A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001218443A (en) * 1999-12-24 2001-08-10 Nikon Corp Linear motor, fluid circulation system for the same and exposing apparatus
US6722872B1 (en) * 1999-06-23 2004-04-20 Stratasys, Inc. High temperature modeling apparatus
KR20080055950A (en) * 2005-09-28 2008-06-19 티에치케이 가부시끼가이샤 Linear motor and method of manufacturing the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6722872B1 (en) * 1999-06-23 2004-04-20 Stratasys, Inc. High temperature modeling apparatus
JP2001218443A (en) * 1999-12-24 2001-08-10 Nikon Corp Linear motor, fluid circulation system for the same and exposing apparatus
KR20080055950A (en) * 2005-09-28 2008-06-19 티에치케이 가부시끼가이샤 Linear motor and method of manufacturing the same

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