KR20230120354A - Prefabricated molding block set for 3D printing - Google Patents

Abstract

The present invention relates to a set of prefabricated molding blocks for 3D printing, and more specifically, it is possible to provide a molding space for 3D printing formed of a plurality of assembling blocks that can be individually assembled and separated, so that outputs of various sizes can be produced after 3D printing. Post-processing can be performed by separating only the loaded assembly blocks, and a new 3D printing job can be performed immediately by assembling a separate assembly block manufactured in the same shape in the area where the assembly blocks are separated, increasing work productivity. It is about a set of prefabricated molding blocks for 3D printing that can increase and increase efficiency.

Description

Prefabricated molding block set for 3D printing}

The present invention relates to a set of prefabricated molding blocks for 3D printing, and more specifically, it is possible to provide a molding space for 3D printing formed of a plurality of assembling blocks that can be individually assembled and separated, so that outputs of various sizes can be produced after 3D printing. Post-processing can be performed by separating only the loaded assembly blocks, and a new 3D printing job can be performed immediately by assembling a separate assembly block manufactured in the same shape in the area where the assembly blocks are separated, increasing work productivity. It is about a set of prefabricated molding blocks for 3D printing that can increase and increase efficiency.

A 3D printer is a device that implements an actual sculpture by stacking materials layer by layer based on the three-dimensional information of a digitized drawing in which a three-dimensional object to be produced is structured (sliced) into very thin layers. Compared to methods such as milling, three-dimensional objects can be easily produced.

Originally, 3D printers were developed for purposes such as modeling or sample production prior to mass production, but recently 3D printers have enabled low-volume production of a variety of products, eliminating mold production for prototype development, reducing time and cost. It is used in various fields such as medicine, industry, and life because it can reduce production, can be produced without limiting the amount of orders, can adjust the time to market, and can manufacture complex products without special skills. .

Depending on the product molding method, these 3D printing technologies are classified into Material Extrusion (ME), Photo Polymerization (PP), Power Bed Fusion (PBF), and Direct Energy Deposition (Direct Energy Deposition). ,DED), etc., and the device and material are different according to each method.

Among them, power bed fusion (PBF) 3D printing applies a powdered material, selectively irradiates a laser to the material to melt the metal powder, and then applies a layer of powder material again and then irradiates the laser. By repeating the process, the 3D stereoscopic output to be printed is printed.

In addition, after 3D printing by power bed fusion (PBF), post-processing such as removing foreign substances from the loaded output, heat treatment, surface processing, and painting is performed to complete the 3D printed output.

Here, the mold plate loaded with the output is separated from the 3D printer for post-processing and transported to a post-processing device or place, and when only the output is removed from the molding after post-processing through a cutting tool, In order to remove the remaining fine print, the upper surface of the molding plate is ground and planarized.

On the other hand, in the past, after all the above-described tasks were completed, the molded plate was re-assembled in the 3D printer to perform a new 3D printing job, but this requires a lot of time for post-processing and correcting the molded plate, resulting in a decrease in the amount of output compared to the time. There is a problem of low and low work efficiency.

In addition, when the size of the output of 3D printing is small, even if only a certain portion of the molded plate is used, inefficient consumption occurs because the entire upper surface of the molded plate must be ground and flattened to level the upper surface of the molded plate. However, there is a problem in that a lot of cost is incurred in remanufacturing and replacing the molded plate, which is consumable.

Therefore, it is possible to increase the production of 3D printed output and improve work efficiency by reducing the inefficient time spent in the 3D printing process, and to minimize the inefficient consumption of the molding plate for 3D printing, thereby reducing the cost of the molding plate. The molding space for 3D printers that can be reduced is needed.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to perform post-processing processing using only the area where the 3D printing output is loaded, preventing consumption of unused areas by post-processing processing It is to provide a set of prefabricated molding blocks for 3D printing that can reduce the cost of replacing and correcting molding spaces by extending the lifespan of consumable molding spaces.

In addition, another object of the present invention is to perform a post-processing process that takes 2 to 3 days or more after the 3D printing job is finished, and then replace only the area where the 3D printing output is loaded without performing a new 3D printing job. It is to provide a set of prefabricated molding blocks for 3D printing that can be performed to reduce inefficiently wasted work time.

Meanwhile, the objects of the present invention are not limited to the objects mentioned above, and other objects not mentioned will be clearly understood by those skilled in the art from the description below.

In order to achieve the above objects, the present invention is assembled inside a 3D printer, a molding space in which materials for 3D printing can be melted and stacked, a die coupled inside the 3D printer and a plurality of assemblies assembled on the upper surface of the die It is made up of blocks, and provides a prefabricated molding block set for 3D printing, characterized in that only the assembly block loaded with the 3D printed output can be separated from the die and transported.

In a preferred embodiment, the die has a predetermined length in an inward direction from the end of the upper surface of the die, and a plurality of first coupling bars protruding at regular intervals along the circumference of the die are the same based on each first coupling bar. A plurality of second coupling bars are formed between a plurality of holes spaced apart from each other on a line and formed with a predetermined diameter and holes adjacent to each other and fastened so as to protrude from the upper surface of the die, and the assembly block has a center located in the hole. On the lower surface of the assembly block, a coupling groove into which the first and second coupling bars disposed adjacent to each hole can be inserted is formed, and one side and the other side of the second coupling bar are disposed adjacent to each other. It has a length capable of inserting and coupling a predetermined area into the coupling groove of each assembly block.

In a preferred embodiment, the plurality of assembly blocks include a corner assembly block disposed near a corner of the die and assembled on the upper surface of the die and an inner assembly block disposed between the disposed corner assembly blocks and assembled on the upper surface of the die. The corner assembly block and the die are formed with guide holes formed in communication with each other at positions corresponding to each other so that pins can be inserted, and the corner assembly to be assembled at each end of the die is formed by inserting the pin into the guide hole. Blocks can be arranged on the same line and guided to be assembled.

In a preferred embodiment, the die has a block positioning unit capable of tightly fixing a plurality of assembly blocks assembled to the die by pressing the exposed surface of the corner assembly block in the vertical direction from both outer surfaces of the die corner. Further, the block positioning unit is formed spaced apart from both outer surfaces by a predetermined distance based on each edge of the die corner, and in a groove formed having a predetermined depth from the upper outer surface of the die in an inward direction, and the groove An adjustment member inserted into the inner surface of the groove parallel to the outer surface of the die at a predetermined distance from each other to press the corner assembly block inwardly in contact with the groove, wherein the adjustment member is inserted into the groove and seated with a screw. It includes a body having a screw hole into which a screw hole can be inserted and a pressing surface extending in a vertical direction from the outer end of the upper surface of the body and in contact with the corner assembly block, and a screw can be fastened to the inner surface of the groove When a fastening groove is formed and a screw is inserted into the screw hole and pressurized and tightened so as to be fastened to the fastening groove, the adjustment member moves to come into contact with the inner surface of the groove, so that the pressing surface compresses the corner assembly block inwardly. can be pressurized.

In a preferred embodiment, a block separator is formed on the die to individually separate each assembly block from the die by pressing, a screw thread is formed on an inner surface of a hole formed in the die, and the block separator is formed in the plurality of holes. Springs to be inserted respectively, a liner formed in a shape corresponding to the coupling groove so that it is connected to the upper end of the spring, seated on the first and second coupling bars adjacent to the hole, and inserted into the coupling groove of each assembly block, and the lower end of the spring It is disposed on the outer surface, and includes a pressing member for supporting and pressurizing the spring so that it protrudes from the upper surface of the die and is fastened to the hole with a screw thread formed on the outer surface, and a tool is inserted into the pressing member to tighten the pressing member. As a through-hole is formed to tighten the pressing member, the pressing member moves upward and compresses the spring, and due to the repulsive force of the compressed spring, the liner presses the lower surface of each assembly block to form each assembly block. It can be separated from the die.

In addition, the present invention is a prefabricated molding block set on which a three-dimensional output is loaded, a coating device for applying a material for 3D printing to the upper surface of the prefabricated molding block set, and a prefabricated molding block set disposed on top of the prefabricated molding block set and coated with the material It is possible to further provide a 3D printer including an irradiation device for melting a material by irradiating a laser onto the upper surface of the molding block set.

The present invention has the following excellent effects.

According to the prefabricated molding block set for 3D printing of the present invention, since the molding space in which the 3D printing output is loaded is formed by assembling a plurality of assembly blocks, post-processing can be performed by removing only the assembly block loaded with the output. It is possible to prevent unused assembly blocks from being consumed by post-processing, thereby increasing the lifespan of assembly blocks that are not frequently used, and reducing replacement costs by reducing the replacement area of the wasted molding space. There are advantages.

In addition, according to the prefabricated molding block set for 3D printing of the present invention, a second coupling bar is formed on the upper surface of the die so that the assembling blocks assembled adjacent to each other are engaged together, so that a plurality of assembling blocks are disposed adjacent to each other and assembled. Since the tolerance between blocks can be minimized, there is an advantage in preventing defects in the output printed on the upper surface of the prefabricated molding block set due to fine gaps or multi-levels that may occur between adjacent assembly blocks due to tolerance.

In addition, according to the assembly type molding block set for 3D printing of the present invention, a block positioning unit capable of pressing the exposed outer surface of the corner assembly block inward is formed on the outer surface of the die corner, and a plurality of pieces assembled on the upper surface of the die are formed. Since the assembly blocks can be fixed in close contact, there is an advantage in preventing the occurrence of minute gaps between a plurality of assembled assembly blocks.

In addition, according to the prefabricated molding block set for 3D printing of the present invention, a block separating portion capable of pressing a force upward from the lower part of the die is formed in the die in each area where the center of each assembly block is disposed, which is applied during 3D printing There is an advantage in that the assembly blocks expanded by the losing heat can be easily separated from the die individually with little force.

1 is a perspective view for explaining a prefabricated molding block set for 3D printing according to an embodiment of the present invention;
2 is an exploded view for explaining the configuration of a prefabricated molding block set for 3D printing according to an embodiment of the present invention;
3 is a plan view showing a top surface of a die of a prefabricated molding block set for 3D printing according to an embodiment of the present invention;
4 is a bottom view of the assembly block showing the type and shape of the assembly block of the assembly block set for 3D printing according to an embodiment of the present invention;
5 is a view for explaining a block positioning unit of a prefabricated molding block set for 3D printing according to an embodiment of the present invention;
6 is a view for explaining a block separator of a prefabricated molding block set for 3D printing according to an embodiment of the present invention.

The terms used in the present invention have been selected from general terms that are currently widely used as much as possible, but in certain cases, there are terms arbitrarily selected by the applicant. Therefore, its meaning should be understood.

Hereinafter, the technical configuration of the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

However, the present invention is not limited to the embodiments described herein and may be embodied in other forms, and like reference numerals denote like elements throughout the specification.

1 is a perspective view for explaining a prefabricated molding block set for 3D printing according to an embodiment of the present invention, and FIG. 2 is an exploded view for explaining the configuration of a prefabricated molding block set for 3D printing according to an embodiment of the present invention. .

Referring to FIGS. 1 and 2 , the prefabricated molding block set 100 for 3D printing of the present invention is coupled to be disposed inside a 3D printer to provide a molding space so that a 3D printed output can be loaded.

Here, the 3D printer selectively irradiates the applied powder material with a laser to melt the powder, applies another layer of powder material, and then repeats the process of irradiating the laser to produce a 3D stereoscopic output to be printed. It is a 3D printing device of power bed fusion (PBF).

In addition, the 3D printer largely includes a molding space in which a 3D printing output is loaded, an application device for applying a material for 3D printing, and an irradiation device for melting the material by irradiating a laser beam to the molding space in which the material is applied.

That is, the prefabricated molding block set 100 for 3D printing of the present invention can be provided as a 3D printer by being coupled to the lower part of the irradiation device.

In addition, the assembly block set 100 for 3D printing of the present invention includes a die 110 and a plurality of assembly blocks 120, and the plurality of assembly blocks 120 form one plate. (110) Used by assembling on the upper surface.

3 is a plan view showing a top surface of a die of a prefabricated molding block set for 3D printing according to an embodiment of the present invention. Referring to FIG. 3, the die 110 is used to fix and support the plurality of assembly blocks 120. To guide the assembly position, the first coupling bar 111, the hole 112, the second coupling bar 113 is formed.

The first coupling bar 111 is formed in plurality at regular intervals along the circumference of the die 110, and in detail, the assembly block 120 disposed at each end of the upper surface of the die 110 and It can be formed in a corresponding number and location.

In addition, the first coupling bar 111 has a predetermined length inward from the end of the upper surface of the die 110 and protrudes from the upper surface of the die 110 .

The hole 112 is formed in plurality by being spaced apart from each other at regular intervals on the same line based on each first coupling bar 111 .

At this time, each assembly block 120 is arranged so that its center is located in each hole 112 and coupled to the upper surface of the die 110.

In addition, the hole 112 has a predetermined diameter and is formed through the die 110 in the vertical direction, so that heat applied during 3D printing can be quickly released, resulting in heat from the prefabricated molding block set 100. deformation can be minimized.

The second coupling bars 113 are arranged to be spaced apart from each other on the same line based on each first coupling bar 111 and are formed in the die 110, and in detail, each first coupling bar 111 As a reference, it is disposed between the holes 112 adjacent to each other on the same line and is formed to protrude from the upper surface of the die 110.

That is, the first and second coupling bars 111 and 113 are arranged in a lattice arrangement on the die 110 and are formed to protrude from the upper surface of the die 110 .

In addition, the second coupling bar 113 may be fixed to the die 110 by a separate fixing member 113a.

In detail, an accommodation groove in which the second coupling bar 113 can be accommodated is formed in the die 110, and the second coupling bar 113 is inserted to protrude a predetermined portion from the upper surface of the die 110. , A separate fixing member 113a capable of being fixed to the die 110 by penetrating the second coupling bar 113 may be formed at a side of the receiving groove.

Accordingly, when the second coupling bar 113 is damaged or deformed, only the damaged or deformed second coupling bar 113 is individually separated and repaired without replacing or repairing the entire prefabricated molding block set 100. or can be replaced.

In addition, the second coupling bar 113 has one side and the other side disposed adjacent to each other and formed to a length capable of being coupled to each assembly block 120 to be assembled by a predetermined area, preferably the second coupling bar ( 113) is arranged to be coupled to each assembly block 120 disposed adjacent to each other by 1/2 area of the second coupling bar 113 and fixed to the die 110, and the second coupling bar 1/2 length of (113) may be formed shorter than the length from the end to the center of each assembly block (120).

Due to this, it is possible to minimize the tolerance that may occur between the assembly blocks 120 assembled to be adjacent to each other on the die 110, so that a fine gap between the assembled assembly blocks 120 is generated and foreign matter is trapped or a layer is formed. It is possible to prevent defects from occurring in the output due to horizontal and vertical misalignment in the molding space where 3D printing is performed.

Figure 4 is a bottom view of the assembly block showing the type and shape of the assembly block of the assembly block set for 3D printing according to an embodiment of the present invention. Referring to Figure 4, the plurality of assembly blocks 120 are 3D printing The material for the is applied to provide an area where the material melted by laser irradiation can be laminated, and is composed of a corner assembly block 121 and an inner assembly block 122.

In addition, the plurality of assembly blocks 120 are arranged so that their centers are located in respective holes 112 and coupled to the die 110 .

In addition, each of the plurality of assembly blocks 120 is a three-dimensional shape having the same horizontal and vertical lengths and heights, and is a rectangular parallelepiped having a square bottom surface having the same horizontal and vertical lengths.

The corner assembly block 121 is an assembly block disposed near the corner of the die 110 to guide the assembly position when assembling the plurality of assembly blocks 120 on the upper surface of the die 110, and has a first coupling groove. (121a), a guide hole (121b) and a separation hole (121c) are formed.

The first coupling groove 121a is a groove into which the protruding parts of the first and second coupling bars 111 and 113 are inserted to couple the corner assembly block 121 to the upper surface of the die 110, and the corner assembly block The first and second coupling bars 111 and 113 formed adjacent to each other around the hole 112 of the die 110 are inserted into the surface of the die 121 in contact with the die 110 .

At this time, the first coupling groove 121a is the first and second coupling bars 111 and 113 disposed adjacent to the hole 112 on the surface where the corner assembly block 121 contacts the die 110. ) and is formed in a shape and position corresponding to That is, the first coupling groove 121a may be formed in a cross shape based on the center of the corner assembly block 121 .

The guide hole 121b is a hole capable of guiding the corner assembly blocks 121 to be assembled at each end of the upper surface of the die 110 to be assembled on the same line, and is located at the outer corner of the corner assembly block 121. It is formed through so that the pin is inserted in the vertical direction.

At this time, a guide groove or a guide hole into which a pin inserted into the guide hole 121b can be inserted is formed in the die 110 at a position corresponding to the guide hole 121b.

Accordingly, when assembling the plurality of assembly blocks 120 to the die 110, the guide hole 121b moves the plurality of assembly blocks 120 to the initially designed assembly position on the upper surface of the die 110. Not only can a reference position be guided for assembly, but also corner assembly blocks 121 to be assembled at each end of the upper surface of the die 110 can be arranged and guided to be assembled on the same line.

The separation hole 121c is a hole to which a screw is fastened to separate the corner assembly block 121 from the die 110, and is formed through an area symmetrical from the center of the corner assembly block 121 in the vertical direction, , A screw thread into which the screw can be fastened is formed on the inner surface of the separation hole 121c.

Here, the screw is formed longer than the height of the corner assembly block 121, and no separate hole or groove is formed in the die 110.

Accordingly, when it is difficult to separate the plurality of assembly blocks 121 from the die 110 due to thermal expansion or poor assembly, the screws are pressed downward into the separation holes 121c to form the die 110. When tightened until reaching the upper surface of the die 110, the corner assembly block 121 can be pushed out and separated, so that the corner assembly block 121 is removed from the die 110 with little force, that is, the screw. can be separated by tightening force.

On the other hand, a coupling area 114 that can be coupled to the output device by a fastening means such as a bolt or a nut is formed at each corner area of the die 110, and due to this, the corner assembly block 121 is When assembled near the corner of the upper surface of the die 110, it is formed by cutting a predetermined area so as not to interfere with the coupling area 114.

The inner assembly block 122 is an assembly block disposed and assembled between the corner assembly blocks 121 assembled on the upper surface of the die 110, and has a second coupling groove 122a formed therein.

The second coupling groove 122a is a groove into which the protruding parts of the first and second coupling bars 111 and 113 are inserted to couple the inner assembly block 122 to the upper surface of the die 110, and is the inner assembly block. The first and second coupling bars 111 and 113 formed adjacent to the hole 112 of the die 110 as a center are formed on the surface of the die 122 in contact with the die 110 to be inserted.

At this time, the second coupling groove 122a is the first and second coupling bars 111 and 113 disposed adjacent to the hole 112 on the surface where the inner assembly block 122 contacts the die 110. ) and is formed in a shape and position corresponding to That is, the second coupling groove 122a may be formed in a cross shape based on the center of the inner assembly block 122 .

On the other hand, the inner assembly block 122 is shown in the shape of a rectangular parallelepiped having a square bottom of 1×1, but is not limited thereto, and may be 1×2, 1×3, 2×2, or 2×3 depending on the user's purpose. It can be made in the shape of a rectangular parallelepiped with a base of the back.

5 is a view for explaining a block position adjusting unit of a prefabricated molding block set for 3D printing according to an embodiment of the present invention. Referring to FIG. 5, the prefabricated molding block set 100 for 3D printing of the present invention A block position adjusting unit 130 capable of tightly fixing the plurality of assembly blocks 120 assembled on the upper surface of the die 110 and finely adjusting the assembled position is further formed.

The block positioning unit 130 presses the exposed surface of the corner assembly block 121 in a vertical direction to tightly fix the plurality of assembly blocks 120 and also presses the plurality of assembly blocks 120 assembled on the upper surface of the die 110. As a means for finely adjusting the overall position of the assembly block 120, it is composed of a groove 131 and an adjustment member 132.

The grooves 131 are formed to be spaced apart from each other by a predetermined distance on both outer surfaces of each corner of the die 110 and have a predetermined depth from the upper outer surface of the die 110 to the inside.

Specifically, it is formed to have a predetermined depth on the outer surface of the upper portion of the die 110 at the position where the first coupling bar 111 adjacent to each corner of the die 110 is formed.

The adjusting member 132 is inserted into the inner surface of the groove 131 parallel to the outer surface of the die 110 at a predetermined distance from the inside of the groove 131 to move the corner assembly block 121 inward. As a means capable of contact pressure, it includes a body (132a) and a pressing surface (132b).

In addition, the adjustment member 132 is inserted into the groove 131 and can move a predetermined separation distance (a) in a vertical direction from the outer surface of the die 110 toward the inner side.

Here, the separation distance (a) is the distance between the inner surface of the groove 131 and the groove 131 when the outer surface of the adjustment member 132 is disposed parallel to the outer surface of the die 110 and is inserted. It is the distance between the inner surface and the inner surface of the adjusting member 132 facing the inner surface, and is the distance that the adjusting member 132 can move in the inner direction from the outer surface of the die 110, preferably the separation distance (a) may be designed to be spaced within 0.5 mm.

The body 132a is inserted and seated in the groove 131, and a screw hole 132a-1 through which a screw can be fastened is formed.

The screw hole 132a-1 is vertically formed through the outer surface of the die 120, and at this time, a screw inserted through the screw hole 132a-1 is formed on the inner surface of the groove 131. A fastening groove into which can be fastened is formed.

The pressing surface 132c extends in a vertical direction from the outer end of the body 132a and is formed to contact the outer surface of the corner assembly block 121.

That is, since a screw is inserted into the screw hole 132a-1 and pressed while being fastened to the fastening groove, when the adjusting member 132 moves to come into contact with the inner surface of the groove 131, the pressing The surface 132c may compress and press the corner assembly block 121 in an inward direction.

Due to this, not only can the plurality of assembly blocks 120 assembled on the upper surface of the die 110 be tightly fixed, but also the entire position of the plurality of assembly blocks 120 on the die 110 can be finely adjusted.

6 is a view for explaining a block separator of a prefabricated molding block set for 3D printing according to an embodiment of the present invention. Referring to FIG. 6, the prefabricated molding block set 100 for 3D printing of the present invention includes the plurality of A block separator 140 capable of individually separating the two assembly blocks 120 from the die 110 may be further formed, including a spring 141, a liner 142 and a pressing member 143. It is done.

The spring 141 is inserted into each hole 112 formed in the die 110, respectively.

The liner 142 is connected to the upper end of the spring 141 and is seated on the first and second coupling bars 111 and 113 formed adjacent to the hole 112, and the coupling groove 121a of each assembly block 120, 122a).

In addition, the liner 142 is formed in a shape corresponding to the first and second coupling grooves 121a and 122a so that it can be inserted into and coupled to the coupling grooves 121a and 122a of each assembly block 120, respectively. More specifically, the liner 142 may be formed in a cross shape corresponding to the cross shape of the first and second coupling grooves 121a and 122a.

The pressing member 143 is disposed at the lower end of the spring 141 to support and press the spring 141 to protrude from the upper surface of the die 110 .

Meanwhile, threads are formed on the inner surface of the hole 112 and the outer surface of the pressing member 143 so that the pressing member 143 can move vertically in the hole 112. In addition to this, the pressing member 143 may be fastened in various ways capable of moving within the hole 112 .

In addition, the pressing member 143 is formed with a tool fastening hole penetrating in the vertical direction so that a tool for fastening the pressing member 143 can be inserted.

Here, the tool fastening hole is opened downward of the die 110 in addition to being coupled with the tool, so that heat received during 3D printing can be quickly released, so that the die 110 and the assembly block can be dissipated due to the heat. Thermal expansion or deformation of the (120) can be minimized.

That is, the separating part 140 tightens the pressing member 143 with the tool and moves the pressing member 143 upward, thereby pressurizing and compressing the spring 141, and the spring 141 is compressed. The liner 142 subjected to the repulsive force presses the lower surface of each assembly block 120 to separate each assembly block 120 from the die 110 individually.

Accordingly, when each assembly block 120 is expanded by heat applied during printing of a three-dimensional output product, and it is difficult to separate by human power, the separation unit 140 can easily be used with little force, that is, the force of tightening the screws. can be separated

Therefore, the prefabricated molding block set 100 for 3D printing of the present invention is formed by assembling the plurality of assembling blocks 120, and post-processing can be performed by removing only the assembling block 120 on which the output is loaded. Therefore, it is possible to prevent the unused corner assembly block 121 from being consumed by post-processing, thereby increasing the lifespan of the corner assembly block 121 that is not frequently used, and the inner assembly block that is frequently used and quickly consumed. Since only (122) needs to be replaced, there is an advantage in that the cost of replacement can be reduced.

As reviewed above, the present invention has been shown and described with preferred embodiments, but is not limited to the above embodiments, and to those skilled in the art within the scope of not departing from the spirit of the present invention Various changes and modifications will be possible.

100: set of prefabricated molding blocks 110: die
111: first coupling bar 112: hole
113: second coupling bar 113a: fixing member
114: coupling area 120: a plurality of assembly blocks
121: corner assembly block 121a: first coupling groove
121b: guide hole 121c: separation hole
122: inner assembly block 122a: second coupling groove
130: block positioning unit 131: home
132: adjusting member 132a: body
132a-1: screw hole 132b: pressing surface
140: block separation unit 141: spring
142: liner 143: pressing member
a: predetermined distance

Claims (6)

It is assembled inside the 3D printer and is a molding space where materials for 3D printing can be melted and stacked.
A die coupled inside the 3D printer; and
It includes; a plurality of assembly blocks that can be assembled and separated from the die;
A prefabricated molding block set for 3D printing, characterized in that only the assembly block loaded with the 3D printed output can be separated from the die and transported.
According to claim 1,
In the die,
a plurality of first coupling bars protruding at regular intervals along the circumference of the die and having a predetermined length inward from an end of the upper surface of the die;
A plurality of holes formed with a predetermined diameter and spaced apart from each other on the same line based on each first coupling bar; and
A plurality of second coupling bars disposed between holes adjacent to each other and coupled to protrude from the upper surface of the die; are formed,
The assembly block is arranged so that the center is located in the hole,
On the lower surface of the assembly block, a coupling groove into which the first and second coupling bars disposed adjacent to each hole can be inserted is formed,
The second coupling bar is a set of prefabricated molding blocks for 3D printing, characterized in that one side and the other side have a length capable of being inserted into and coupled to a predetermined area in the coupling groove of each assembly block disposed adjacent to each other.
According to claim 2,
The plurality of assembly blocks: silver
a corner assembly block disposed near a corner of the die and assembled to an upper surface of the die; and
Including; an inner assembly block disposed between the disposed corner assembly blocks and assembled on the upper surface of the die;
The corner assembly block and the die are formed with guide holes formed in communication with each other at positions corresponding to each other so that pins can be inserted,
A prefabricated molding block set for 3D printing, characterized in that by inserting the pin into the guide hole, the corner assembly blocks to be assembled at each end of the die can be arranged and assembled on the same line.
According to claim 3,
The die is further formed with a block positioning unit capable of tightly fixing a plurality of assembly blocks assembled on the die by vertically pressing the exposed surface of the corner assembly block on both outer surfaces of the die corner,
The block positioning unit:
grooves formed on both outer surfaces of the die corner by a predetermined distance and having a predetermined depth in an inward direction from the upper outer surface of the die; and
Including; an adjustment member that is inserted into the inner surface of the groove parallel to the outer surface of the die at a predetermined distance from the groove and can contact and press the corner assembly block inward,
The adjusting member:
a body inserted into the groove and having a screw hole into which a screw can be inserted; and
A pressing surface extending in a vertical direction from the outer end of the upper surface of the body and contacting the corner assembly block; includes,
A fastening groove into which a screw can be fastened is formed on the inner surface of the groove,
When a screw is inserted into the screw hole and pressurized and tightened so as to be fastened to the fastening groove, the adjusting member moves to come into contact with the inner surface of the groove, so that the pressing surface can compress and press the corner assembly block inward. A set of prefabricated molding blocks for 3D printing.
According to claim 4,
A block separation unit is formed on the die to individually separate each assembly block from the die by pressing,
A thread is formed on the inner surface of the hole formed in the die,
The block separator:
springs respectively inserted into the plurality of holes;
a liner formed in a shape corresponding to the coupling groove so as to be connected to the upper end of the spring and seated on the first and second coupling bars adjacent to the hole to be inserted into and coupled to the coupling groove of each assembly block; and
a pressure member disposed at a lower end of the spring, having a screw thread formed on an outer surface thereof, fastened to the hole, and supporting and pressurizing the spring so that the spring protrudes from the upper surface of the die; including,
A through hole into which a tool can be inserted to fasten the pressing member is formed in the pressing member, and as the pressing member is tightened, the pressing member moves upward while compressing the spring, and the liner due to the repulsive force of the compressed spring. Prefabricated molding block set for 3D printing, characterized in that each assembly block can be separated from the die by pressing the lower surface of each assembly block.
A set of prefabricated molding blocks for 3D printing according to any one of claims 1 to 6, in which a three-dimensional output is loaded;
An application device for applying a material for 3D printing to the upper surface of the prefabricated molding block set; and
3D printer, characterized in that it comprises a; irradiation device disposed on top of the prefabricated molding block set and irradiating a laser to the upper surface of the prefabricated molding block set to which the material is applied to melt the material.