KR102336822B1 - Unit block arrangement apparatus and method for mamufacturing 3D shape - Google Patents

Abstract

The present invention relates to a unit block arrangement device for 3D shape production and a method thereof, which stack and arrange unit blocks in a fixed position in a mold when the unit blocks are partially joined and laminated to produce a 3D shape. The unit block arrangement device for 3D shape production of the present invention comprises: a workbench(100); a mold (200) installed on the upper part of the workbench; and a unit block supply unit (300) installed on the upper part of the workbench to stack and arrange unit blocks (B) in a plane layer by layer inside the mold while moving in the three-axis directions of X, Y, and Z. The unit block supply unit comprises: a main body (310) positioned on the upper part of the mold; an upper plate (340) installed inside the main body and having second unit block receiving holes (341) for receiving the unit blocks at regular intervals; a lower plate (320) having unit block passing holes (321) corresponding to the second unit block receiving holes and supplying the unit blocks to the inside of the mold; and an intermediate moving plate (330) having first unit block receiving holes (331) corresponding to the second unit block receiving holes and receiving the unit blocks from the upper plate or supplying the unit blocks provided from the upper plate to the lower plate while reciprocating horizontally between the upper plate and the lower plate.

Description

Unit block arrangement apparatus and method for mamufacturing 3D shape}

The present invention relates to an apparatus and method for arranging unit blocks for producing a three-dimensional shape, which stacks and arranges the unit blocks in a fixed position in a mold when manufacturing a three-dimensional shape by partially bonding and laminating unit blocks.

In general, the three-dimensional shape production technology using a 3D printer divides the three-dimensional shape into unit planes and hardens the liquid raw material with UV irradiation for each plane, or melts the raw material in the form of powder or filament with a heat source such as a laser and laminates it. follow

However, the 3D shape production technology using such a 3D printer has the advantage of automatically creating a precise shape while the driving unit capable of 3-axis movement moves along with the 3D shape computational modeling data, but printing in point units or plane units Since it is a method to create a shape by repeatedly performing

In order to solve this problem, "a method of manufacturing a three-dimensional shape" proposed by the present applicant through Korean Patent No. 10-1722979 is known.

In the manufacturing method of the three-dimensional shape, the unit blocks are supplied in stages so that they are arranged in a plane layer by layer inside the frame of the forming frame and stacked, and unit blocks constituting the three-dimensional shape to be manufactured among the unit blocks supplied for each stacking step It is made in such a way that the unit blocks are partially bonded to each other to form a unit block assembly, then the mold is removed and non-bonded unit blocks not included in the unit block assembly are removed.

Since the manufacturing method of such a three-dimensional shape is a method of forming a three-dimensional shape by partially bonding unit blocks having a predetermined volume, it is different from the conventional method of making a shape by hardening or melting raw materials in units of points or planes. Compared to that, there is an advantage in that the time and energy required for the production of a large three-dimensional shape can be significantly reduced.

However, in the above-described method for manufacturing a three-dimensional shape, if any one of the stacked unit blocks is not arranged in the correct position, the desired shape is greatly deviated as well as a large defect in structural strength occurs. Accuracy of supply and arrangement must be guaranteed, and for this reason, as the raw material supply unit moves in three dimensions, it has no choice but to supply numerous unit blocks one by one in the forming mold, which takes too much time to supply the unit blocks. have

Domestic Registered Patent Publication No. 10-1722979

The present invention has been devised to solve the above problems, and an object of the present invention is to provide an apparatus and method for arranging unit blocks for three-dimensional shape production, which can supply and arrange unit blocks in a mold to the right position quickly and accurately.

In order to achieve the above object, the unit block arrangement device for producing a three-dimensional shape of the present invention is installed on a work bench, a forming mold installed on the upper part of the work bench, and the upper part of the work table while moving in the three-axis directions of X, Y, and Z. A unit block supply unit for stacking and arranging unit blocks in a plane layer by layer inside the molding die, and a body in which the unit block supply unit is positioned above the molding die, and the unit block passing holes through which the unit block passes are spaced at regular intervals is formed with a lower plate installed inside the main body to supply the unit block to the inside of the mold, and has first unit block receiving holes corresponding one-to-one to the unit block passing holes, and is horizontally positioned at the upper part of the lower plate. and a middle moving plate for supplying the unit block accommodated in the first unit block receiving hole to the unit block passing hole of the lower plate while reciprocating.

In addition, an upper plate having second unit block accommodating holes corresponding to the first unit block accommodating holes one-to-one may be further provided on the upper portion of the intermediate moving plate.

In this case, the upper plate is preferably configured to reciprocate horizontally.

On the other hand, a through hole is formed in the workbench, and the forming frame has an edge portion fixed to the upper portion of the workbench to surround the through hole, a guide housing installed on the lower portion of the workbench to communicate with the through hole, and the inside of the guide housing It may be composed of a bottom surface in which the unit blocks supplied from the unit block supply unit are stacked and arranged while descending in stages.

In addition, unit block seating grooves are formed at regular intervals to form an equilateral triangular arrangement on the bottom surface of the molding frame, and the unit block passing hole and the first unit block receiving hole are each with respect to the x-axis spacing of the unit block seating grooves It may be formed at an interval that is a multiple of n1 and an interval that is a multiple of n2 with respect to the interval of the y-axis.

In addition, an evacuation groove corresponding to the unit block seating groove may be formed on the lower surface of the lower plate.

In addition, it is preferable that the first unit block accommodating holes are formed at the same height as the unit block to accommodate only a single unit block, respectively.

On the other hand, a bonding unit for applying bonding force to the unit blocks arranged inside the forming frame while horizontally moving in the X and Y two-axis directions may be installed on the upper portion of the workbench.

And the method for arranging unit blocks for producing a three-dimensional shape of the present invention comprises an odd-numbered layer arrangement step in which a plurality of unit blocks are arranged in a plane on a mold so that the adjacent three unit blocks form an equilateral triangle, and the three adjacent unit blocks are and an even-numbered layer arranging step in which a plurality of unit blocks are planarly arranged on top of the odd-numbered layers to form an equilateral triangle.

In this case, the odd-numbered layer arranging step supplies unit blocks multiple times at intervals of n1 multiples of the diameter of the unit blocks in the x-axis direction, and unit blocks multiple times at intervals of n2 multiples of the diameter of the unit blocks in the y-axis direction. This can be done by supplying blocks.

In addition, in the even-numbered layer arranging step, a plurality of times are supplied at intervals of n1 multiples of the diameter of the unit block in the x-axis direction between the unit blocks arranged in the odd-numbered layers, and the y-axis is provided between the unit blocks arranged in the odd-numbered layers. It may be made by supplying it a plurality of times at intervals of n2 multiples of the diameter of the unit block in the direction.

On the other hand, after the odd-numbered layer arrangement step, the unit block bonding step of bonding the unit blocks constituting the three-dimensional shape to be manufactured among the unit blocks arranged in the odd-numbered layer to each other, and the bottom surface of the molding frame is lowered to a certain height. It is preferable to pass the lowering step of the bottom surface of the molding die.

In addition, the odd-numbered layer arranging step includes a first step of supplying unit blocks at intervals of n1 multiples of the diameter of the unit blocks in the x-axis direction and n2 multiples of the diameter of the unit blocks in the y-axis direction, and unit blocks in the x-axis direction. A second step of supplying unit blocks at intervals of n1 multiples while repeating horizontal movements n1-1 times by the diameter of , may include a fourth step of supplying the unit block at intervals of n1 multiples while repeating horizontal movement n1-1 times by the diameter of the unit block in the -x-axis direction.

In this case, after step 4, the fifth step of supplying unit blocks at intervals of n2 multiples by moving in the y-axis direction as much as the diameter of the unit blocks in the y-axis direction until the arrangement of all unit blocks in the odd-numbered layer is completed; , a sixth step of supplying unit blocks at intervals of n1 multiples while repeating horizontal movement n1-1 times as much as the diameter of the unit block in the x-axis direction, and moving in the y-axis direction by 120˚ by the diameter of the unit block to multiply by n2 The seventh step of supplying the unit blocks at intervals and the eighth step of supplying the unit blocks at intervals of n1 multiples while repeating the horizontal movement n1-1 times by the diameter of the unit block in the -x-axis direction may be repeated.

In addition, the step of arranging even-numbered layers comprises supplying unit blocks at intervals of n1 multiples of the diameter of the unit blocks in the x-axis direction and n2 multiples of the diameter of the unit blocks in the y-axis direction between unit blocks arranged in odd-numbered layers. Step 1-1 and step 2-1 of supplying unit blocks at intervals of n1 multiples while repeating horizontal movement n1-1 times as much as the diameter of the unit block in the x-axis direction, and moving by the diameter of the unit block in the 120˚ direction After step 3-1 of supplying the unit blocks at intervals of n2 multiples between the unit blocks arranged in the odd-numbered layer, the horizontal movement is repeated n1-1 times by the diameter of the unit block in the -x-axis direction. A step 4-1 of supplying the unit blocks at intervals of n1 multiples between the arranged unit blocks may be included.

In this case, after step 4-1, until the unit blocks are seated between the unit blocks arranged in all odd-numbered layers, the unit blocks are moved in the 60˚ direction by the diameter of the unit blocks arranged in the odd-numbered layers. Step 5-1 of supplying unit blocks at intervals of n2 multiples, and repeating horizontal movement n1-1 times by the diameter of the unit blocks in the x-axis direction, unit blocks at intervals of n1 multiples between unit blocks arranged in odd-numbered layers Step 6-1 of supplying the unit blocks, the step 7-1 of supplying unit blocks at intervals of n2 multiples between the unit blocks arranged in odd-numbered layers after moving as much as the diameter of the unit blocks in the 120° direction, and the x-axis Step 8-1 of supplying the unit blocks at intervals of n1 multiples between the unit blocks arranged in odd-numbered layers while repeating horizontal movement n1-1 times by the diameter of the unit blocks in the direction may be repeated.

The present invention configured as described above is configured to supply the unit blocks to the inside of the forming die at regular intervals through a plurality of unit block passing holes formed in the lower plate while the intermediate moving plate reciprocates. There is an effect that can quickly stack and arrange the unit blocks in place over the entire length of the molding frame by performing only a few repetitions, compared to the conventional arrangement.

1 is a plan view of a unit block arrangement device for producing a three-dimensional shape according to the present invention.
Figure 2 is a front view of the unit block arrangement device for producing a three-dimensional shape according to the present invention.
3 is a plan view showing the upper surface and the lower surface of the lower plate constituting the unit block arrangement device for producing a three-dimensional shape according to the present invention.
4 is a cross-sectional view sequentially illustrating a process in which a unit block supply unit constituting a unit block arrangement device for producing a three-dimensional shape according to the present invention supplies the unit block to a molding die.
5 is a view sequentially illustrating a process in which odd-numbered layers of unit blocks are arranged in a mold according to the method for arranging unit blocks for producing a three-dimensional shape according to the present invention.
6 is a cross-sectional view showing a state in which the unit blocks are joined according to the method for arranging the unit blocks for producing a three-dimensional shape according to the present invention.
7 is a view sequentially illustrating a process in which even-numbered layers of unit blocks are arranged according to the method for arranging unit blocks for producing a three-dimensional shape according to the present invention.
8 is a cross-sectional view showing a state in which the arrangement of the unit blocks to the top height of the 3D product to be manufactured according to the method for arranging the unit blocks for manufacturing a three-dimensional shape according to the present invention is completed.
9 is a view showing a state in which the production of a 3D product is completed according to the method for arranging unit blocks for manufacturing a 3D shape according to the present invention.

The features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments, taken in conjunction with the accompanying drawings.

Prior to this, the terms or words used in the present specification and claims are based on the technical idea of the present invention based on the principle that the inventor can appropriately define the concept of the term in order to best describe his invention. It must be interpreted with a corresponding meaning and concept.

In addition, the terms or words used in the specification and claims are used only to describe specific embodiments, and are not intended to limit the present invention.

For example, the singular expression includes the plural expression unless the context clearly dictates otherwise. In addition, terms such as “comprises” or “comprising” or “having” are intended to designate the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more It should be understood that this does not preclude the possibility of addition or existence of other features or numbers, steps, operations, components, parts, or combinations thereof.

In addition, when a part of a layer, film, region, plate, etc. is said to be "on" another part, this includes not only the case where it is "directly on" another part, but also the case where there is another part in between. Conversely, when a part of a layer, film, region, plate, etc. is said to be "under" another part, this includes not only cases where it is "directly under" another part, but also a case where another part is in between.

In addition, terms including an ordinal number, such as "first", "second", etc. used herein may be used to describe various elements, but the elements are not limited by the terms, and the terms are It is used only for the purpose of distinguishing one component from another.

Hereinafter, in describing an embodiment of the present invention in detail with reference to the drawings, the same reference numerals are used for the same components, and only different parts are mainly described so as not to overlap as much as possible for clarity.

1 is a plan view of a unit block arranging apparatus for producing a three-dimensional shape according to the present invention, and FIG. 2 is a front view of an apparatus for arranging a unit block for producing a three-dimensional shape according to the present invention. The unit block arrangement device for shape production includes a workbench 100, a forming frame 200 installed on the upper portion of the workbench 100, and is installed on the workbench 100 to move in the three-axis directions of X, Y, and Z. It basically includes a unit block supply unit 300 for stacking and arranging the unit blocks (B) in a plane layer by layer inside the molding frame 200 .

The unit block (B) in this embodiment is described and illustrated for example that it is made in the form of a sphere of the same diameter, which has the best stability during lamination, but is not limited thereto. may consist of

In addition, the unit block (B) may be made of various materials such as metal, synthetic resin, chocolate, wood, cement, brick, clay, and the like.

The forming frame 200 includes an edge portion 210 fixed to the upper portion of the workbench 100 , a guide housing 220 installed in the lower portion of the workbench 100 , and stepwise along the inside of the guide housing 220 . While descending, the unit blocks B supplied from the unit block supply unit 300 are separated by a bottom surface 230 on which they are stacked.

In this case, a through hole 110 is formed in the work table 100 , and the edge portion 210 is fixed to the upper portion of the work table 100 so as to surround the through hole 110 , and the bottom surface 230 . Silver is installed so as to be able to elevate inside the guide housing 220 through the elevating unit 240 installed in the lower portion of the work table (100). The bottom surface 230 waits inside the through hole 110 formed in the work bench 100 and enters the guide housing 220 while descending stepwise when the unit blocks B are stacked.

It is preferable that the unit block seating grooves 231 are formed on the bottom surface 230 of the molding frame 200 so that the unit blocks B supplied from the unit block supply unit 300 do not flow and are seated in the correct position. do.

The unit block seating grooves 231 form a triangular arrangement known as the most stable arrangement structure, and are continuously formed along the x-axis direction and the y-axis direction.

In this case, the unit block seating groove 231 is designed to form an equilateral triangular arrangement structure forming an equilateral triangle with each other at the same interval as the diameter of the unit block B, considering that the unit blocks B are formed in a spherical shape of the same diameter. is formed

In addition, when the unit block (B) is stacked, considering that the even-numbered layers are stacked shifted by a distance corresponding to the radius of the unit block (B) in the x-axis direction and the y-axis direction with respect to the odd-numbered layers, the bottom surface ( 230) has a margin 232 spaced apart in the y-axis direction by a distance corresponding to the radius of the unit block B from the edge of the region in which the unit block seating groove 231 is formed (see FIG. 7).

Meanwhile, a transfer unit 400 for transferring the unit block supply unit 300 in the x, y, and z-axis directions is provided on the upper portion of the work table 100 .

The transfer unit 400 includes a vertical cylinder 410 for transferring the unit block supply unit 300 in the z-axis, a first transfer rail 420 for transferring the vertical cylinder 410 in the y-axis, and the first It may be composed of a second transfer rail 430 for transferring the transfer rail 420 in the x-axis.

In this embodiment, the first transfer rail 420 and the second transfer rail 430 are configured to receive the transfer force through the ball screw and the driving motor, respectively, but it is not necessary to be limited thereto so that the transfer force is given in various ways. Of course, it can be configured.

On the other hand, the unit block supply unit 300 is composed of a main body 310 positioned above the forming frame 200 , a lower plate 320 and an intermediate moving plate 330 installed horizontally inside the main body 310 .

3 is a plan view showing the upper and lower surfaces of the lower plate constituting the unit block arrangement apparatus for producing a three-dimensional shape according to the present invention. As shown, the lower plate 320 is a unit block through which the unit block (B) passes. Through-holes 321 are formed at regular intervals.

In this case, the unit block passing holes 321 are formed at intervals of n1 multiples of the diameter of the unit block B in the x-axis direction and n2 multiples of the diameter of the unit block B in the y-axis direction.

In this embodiment, the x-axis spacing and the y-axis spacing of the unit block through holes 321 are shown and described as an example (n1 = n2) formed to be the same (n1 = n2) with a two-fold larger interval of the diameter of the unit block (B), It may be formed so that the x-axis spacing and the y-axis spacing of the unit block passing holes 321 are not equal to each other.

That is, the interval of the x-axis of the unit block through-holes 321 is three times larger than the diameter of the unit block (B), and the interval of the y-axis of the unit block through-holes 321 is 2 of the diameter of the unit block (B). It may be formed at multiple large intervals.

As such, the reason for setting the interval of the unit block through holes 321 to be an integer multiple of the diameter of the unit block B is that the interval between the unit block through holes 321 is the same as the diameter of the unit block (B). This is because the strength of the lower plate 320 is too low to the extent that it is difficult to maintain a horizontal state.

Considering this, as the diameter of the unit block (B) is smaller, it is preferable to set the interval of the unit block passing hole 321 to be larger.

On the other hand, when the unit block supply unit 300 descends, the lower plate 320 to prevent the unit block B already seated in the unit block seating groove 231 and the bottom surface 320a of the lower plate 320 from interfering. It is preferable that an evacuation groove 322 corresponding to the unit block seating groove 231 is formed on the bottom surface 320a of the .

The intermediate moving plate 330 has a first unit block receiving hole 331 corresponding to the unit block passing hole 321 one-to-one.

In addition, the intermediate moving plate 330 is installed to reciprocate horizontally over a certain distance so that the unit block B accommodated in the first unit block receiving hole 331 according to the moving direction passes through the unit block passing hole of the lower plate 320 . (321) is supplied.

To this end, a transfer cylinder 350 for horizontally reciprocating the intermediate moving plate 330 is installed on the outside of the main body 310 .

In addition, groove portions 312 for accommodating one end and the other end of the intermediate moving plate 330 reciprocating, respectively, are formed on one side and the other side of the main body 310 (see FIG. 5 ).

In addition, each of the first unit block accommodating holes 331 is preferably formed at the same height as the unit block (B) so as to accommodate only a single unit block (B).

In this case, since only one of the unit blocks B is supplied from the middle moving plate 330 to the lower plate 320, a smooth supply without jamming is guaranteed.

Meanwhile, an upper plate 340 having second unit block accommodating holes 341 corresponding to the first unit block accommodating holes 331 one-to-one may be further provided on the upper portion of the intermediate moving plate 330 .

In this case, the second unit block accommodating hole 341 is formed to be located on a vertical line different from the unit block passing hole 321 by a predetermined distance, and has a length sufficient to accommodate a plurality of unit blocks (B) at once. is formed

The main body 310 can accommodate a plurality of unit blocks (B) in the upper portion of the upper plate (340) so as to continuously supply the unit blocks (B) to the second unit block receiving hole (341) of the upper plate (340). It has a space portion 311 of a certain size.

In this case, the intermediate moving plate 330 moves to one side to receive the unit block (B) from the second unit block receiving hole 341 of the upper plate 340, and moves to the other side to receive the supplied unit block (B). It is provided as a through hole 321 of the unit block of the lower plate 320 (see FIG. 4).

At this time, since the second unit block accommodating hole 341 is formed to be long enough to accommodate a plurality of unit blocks B at once, there is always a plurality of units in the second unit block accommodating hole 341 . Since the blocks (B) are accommodated in excess, the intermediate moving plate 330 can reliably receive the unit block (B) from the second unit block receiving hole 341 without a single omission.

Although not shown, the upper plate 340 may also be configured to reciprocate horizontally like the intermediate plate 330 .

In this case, a transfer cylinder for horizontally reciprocating the upper plate 340 is installed on the outside of the main body 310 like the intermediate moving plate 330 , and each reciprocating movement is performed on one side and the other side of the main body 310 . A groove portion for accommodating one end and the other end of the upper plate 340 is formed.

In this way, when the upper plate 340 is configured to reciprocate horizontally, the positions of the unit blocks (B) positioned on the upper part of the upper plate 340 are changed by the movement of the upper plate 340 and the second unit block receiving hole is changed. The entry of the unit block (B) to the 341 is made more reliably.

4 is a cross-sectional view sequentially illustrating a process in which the unit block supply unit constituting the unit block arrangement device for producing a three-dimensional shape according to the present invention supplies the unit blocks to the forming mold, as shown, the intermediate moving plate 330 ) is moved to one side so that the first unit block accommodating hole 331 is positioned on the same vertical line as the second unit block accommodating hole 341, and is a unit block from the second unit block accommodating hole 341 of the upper plate 340. (B) is provided, and the first unit block receiving hole 331 is moved to the other side so that it is positioned on the same vertical line as the unit block passing hole 321, and the unit block (B) provided from the upper plate 340 is applied to the lower plate. It is supplied to the unit block through hole 321 of (320).

On the other hand, the unit block arrangement device for producing a three-dimensional shape of the present invention is installed on the upper portion of the workbench 100 and horizontally moved in the X and Y two-axis directions while the unit block (B) arranged inside the forming frame 200 It may further include a bonding unit 500 for imparting bonding force to the .

In this case, the bonding unit 500 is configured to provide bonding force to the unit block (B) in various ways according to the material of the unit block (B).

For example, the bonding unit 500 uses a heat-melt bonding method using a heating source such as an electron beam or laser, or a chemical adhesive such as mortar, putty, clay, cement, epoxy or hot melt, or a natural adhesive such as glue. In this way, bonding force can be imparted to the unit block (B).

In addition, a transfer unit 600 for transferring the bonding unit 500 in the x and y-axis directions is provided on the upper portion of the work table 100 .

Since the transfer unit 600 is similar to the transfer unit 400 for transferring the unit block supply unit 300 , a detailed description thereof will be omitted.

The apparatus for arranging unit blocks for producing a three-dimensional shape of the present invention configured as described above repeatedly performs the odd-numbered layer arranging step, the unit block joining step, the lowering step of the bottom surface of the forming die, and the even-numbered layer arrangement step. A unit block (B) is stacked therein.

1. Odd-numbered layer arrangement step

The odd-numbered layer arranging step is a step in which a plurality of unit blocks (B) are arranged in a plane on the bottom surface 230 of the forming frame 200 so that the three adjacent unit blocks (B) form an equilateral triangle, in the x-axis direction. The unit blocks (B) are supplied to the bottom surface 230 of the forming die 200 a plurality of times at intervals of n1 multiples of the unit block diameter, and unit blocks (B) at intervals of n2 multiples of the unit block diameter in the y-axis direction. These are made by supplying the bottom surface 230 of the molding die 200 over a plurality of times.

More specifically, in the unit block seating groove 231 formed on the bottom surface 230 of the molding die 200, an interval n1 multiples of the diameter of the unit block B in the x-axis direction and the unit block B in the y-axis direction. The first step of supplying the unit blocks at intervals of n2 multiples of the diameter of The second step of supplying the unit block (B) and the third step of supplying the unit block (B) to the unit block seating groove (231) at intervals of n2 multiples by moving in the 60˚ direction by the diameter of the unit block (B) and a fourth step of supplying the unit block B to the unit block seating groove 231 at intervals of n1 multiples while repeating horizontal movement n1-1 times by the diameter of the unit block B in the -x-axis direction. can

4 is a cross-sectional view sequentially illustrating a process in which the unit block supply unit constituting the unit block arrangement device for producing a three-dimensional shape according to the present invention supplies the unit block to the molding die, and FIG. 5 is a three-dimensional shape production according to the present invention. As a view sequentially showing the process of arranging the odd-numbered layer of unit blocks on the molding die according to the unit block arrangement method for the unit block, as shown, the second unit block receiving hole 341, the unit block passing hole 321, , in the case where the first unit block receiving holes 331 are formed equally at intervals of two times the diameter of the unit block (B), the first to fourth steps are performed as follows.

<Step 1>

As shown in FIG. 4 , the unit block supply unit 300 waits at one side of the forming die 200 , and then moves to the upper part of the forming die 200 along the x-axis transport rail, and then descends to a certain height while forming. The unit block B is seated in the unit block seating groove 231 formed on the bottom surface 230 of the frame 200 .

That is, after the intermediate moving plate 330 moves to one side and drops the unit block B accommodated in the second unit block accommodating hole 341 of the upper plate 340 into the first unit block accommodating hole 331 and is provided. , when the unit block (B) provided by moving to the other side is supplied to the unit block passing hole 321 of the lower plate 320, the unit block B supplied to the unit block passing hole 321 of the lower plate 320 is It falls and is seated in the unit block seating groove 231 .

At this time, the reason that the lower plate 320 of the unit block supply unit 300 descends to approach the unit block seating groove 231 is caused by the impact generated when the unit block B is seated in the unit block seating groove 231 . This is to prevent a phenomenon in which the unit block seating groove 231 is not normally seated in the unit block seating groove 231 while bouncing.

As such, when the unit block supply unit 300 seats the unit block (B) in the unit block seating groove 231, the unit block passing hole 321 of the lower plate 320 moves the unit block in the x-axis direction and the y-axis direction. (B) Since they are formed at intervals of twice the diameter, as shown in FIG. 5A , the unit blocks (B) are not seated in all of the unit block seating grooves 231, but in the unit block seating grooves 231. It is seated at every drain interval.

<Step 2>

When the first step is completed as described above, the unit block supply unit 300 rises to its original position and then horizontally moves once in the x-axis direction by the diameter of the unit block (B). And, as shown in FIG. 5B , the unit block supply unit 300 descends to a predetermined height to supply a new unit block B to the corresponding unit block seating groove 231 .

At this time, since the evacuation groove 322 is formed in the bottom surface 320a of the lower plate 320, there is no interference between the bottom surface 320a of the lower plate 320 and the unit block B seated through the first step. The supply of block (B) is possible.

<Step 3>

When the second step is completed as described above, as shown in FIG. 5c , the unit block supply unit 300 rises to its original position and then moves in the 60° direction by the diameter of the unit block B. Then, the unit block supply unit 300 descends to a predetermined height to supply a new unit block B to the corresponding unit block seating groove 231 .

<Step 4>

When the third step is completed as described above, as shown in FIG. 5d , the unit block supply unit 300 moves horizontally once in the -x-axis direction by the diameter of the unit block B after the unit block supply unit 300 rises to its original position. Then, the unit block supply unit 300 descends to a predetermined height to supply a new unit block B to the corresponding unit block seating groove 231 .

When the unit blocks (B) are supplied in stages over a total of four steps as described above, the unit blocks (B) are seated in all the unit block seating grooves 231, and the odd-numbered layer arrangement is completed.

When the odd-numbered layer arrangement is completed, the unit block supply unit 300 stops the supply of the unit block (B) and returns to the initial standby position on the x-axis transfer rail.

not shown, but When the second unit block accommodating hole 341, the unit block passing hole 321, and the first unit block receiving hole 331 are formed at intervals of three or more times the diameter of the unit block (B), the fourth step After performing, until the unit block (B) is seated in all the unit block seating grooves 231, the unit block is seated at intervals of n2 multiples by moving in the y-axis direction by the diameter of the unit block (B) by 60˚. The fifth step of supplying the unit block B to the groove 231 and the n1 multiple interval to the unit block seating groove 231 while repeating the horizontal movement n1-1 times as much as the diameter of the unit block B in the x-axis direction In the sixth step of supplying the unit block (B) to the The seventh step of supplying and the second of supplying the unit block (B) to the unit block seating groove 231 at intervals of n1 multiples while repeating horizontal movement n1-1 times as much as the diameter of the unit block (B) in the -x-axis direction Repeat step 8.

When the unit blocks B are seated in all the unit block seating grooves 231 while repeating steps 5 to 8, the unit block supply unit 300 stops the supply of the unit blocks B and waits for the first time. return to position

As described above, in the present invention, a plurality of unit blocks (B) are supplied at regular intervals into the mold 200 through the unit block supply unit 300, and are repeatedly performed several times while moving a certain distance along the x-axis and the y-axis. As long as the unit blocks (B) are perfectly arranged in an equilateral triangle over the entire length of the forming die 200, working time compared to the prior art in which the unit blocks (B) are supplied and arranged one by one over the entire area of the forming die 200 can be greatly shortened.

2. Unit block joining step

6 is a cross-sectional view showing a state in which the unit blocks are joined according to the method for arranging the unit blocks for producing a three-dimensional shape according to the present invention. As the unit 500 horizontally moves in the two-axis directions of X and Y, the unit blocks B arranged in the mold 200 are joined together.

The bonding unit 500 is made using computational modeling data including three-dimensional shape information (or coordinate information) of the product as applied in a typical CAD/CAM system or 3D printer, the modeling data can be obtained using any one of known programs for modeling a three-dimensional shape.

3. Lowering the bottom of the forming mold

When the odd-numbered layer arrangement step is completed, the bottom surface 230 of the forming frame 200 is lowered by a predetermined height of the unit block (B).

Here, the predetermined height means a height difference between the upper end of the unit block constituting the odd-numbered layer and the upper end of the unit block B constituting the even-numbered layer thereafter.

When the bottom surface 230 of the molding die 200 is lowered to a certain height, a space for stacking a new unit block (B) is secured inside the molding die 200 .

4. Even-numbered layer arrangement step

7 is a view sequentially showing the process of arranging even-numbered unit blocks according to the unit block arrangement method for producing a three-dimensional shape according to the present invention. As shown, the bottom surface 230 of the forming mold 200 is When descending to a certain height, the unit blocks B are stacked by arranging the even-numbered layers in the same form as the odd-numbered layers on top of the arranged odd-numbered layers.

The even-numbered layer arrangement step is a step in which a plurality of unit blocks (B) are arranged in a plane on top of the odd-numbered layer so that three adjacent unit blocks (B) form an equilateral triangle, and the unit blocks (B) arranged on the odd-numbered layer Step 1-1 of supplying the unit block (B) at intervals of n1 multiples of the diameter of the unit block (B) in the x-axis direction and at intervals of n2 multiples of the diameter of the unit block (B) in the y-axis direction (FIG. 7a) see), the 2-1 step of supplying the unit blocks (B) at intervals of n1 multiples while repeating the horizontal movement n1-1 times as much as the diameter of the unit block (B) in the x-axis direction (refer to FIG. 7b), 120˚ After moving as much as the diameter of the unit block (B) in the direction, the unit block (B) is supplied at intervals of n2 multiples between the unit blocks (B) arranged in the odd-numbered layer using the spare portion 232 (3-1) Step (refer to Fig. 7c), repeating the horizontal movement n1-1 times by the diameter of the unit block (B) in the -x-axis direction, between the unit blocks (B) arranged in the odd-numbered layer, the unit blocks at intervals of n1 multiples It may be composed of a 4-1 step (refer to FIG. 7d) of supplying.

Although not shown, the second unit block accommodating hole 341, the unit block passing hole 321, and the first unit block receiving hole 331 are spaced at intervals of three or more times the diameter of the unit block (B). When formed, after performing the step 4-1, the unit blocks are moved by the diameter of the unit blocks in the 60˚ direction until the unit blocks B are seated in all the unit block seating grooves 231 and arranged in odd-numbered layers. Step 5-1 of supplying unit blocks at intervals of n2 multiples between unit blocks, and repeating horizontal movement n1-1 times by the diameter of the unit block in the x-axis direction, n1 between unit blocks arranged in odd-numbered layers A sixth step of supplying unit blocks at multiple intervals, and a 7-1 step of supplying unit blocks at n2 multiple intervals between unit blocks arranged in odd-numbered layers after moving as much as the diameter of the unit blocks in the 120˚ direction; , repeating step 8-1 of supplying unit blocks at intervals of n1 multiples between unit blocks arranged in odd-numbered layers while repeating horizontal movement n1-1 times by the diameter of the unit block in the x-axis direction.

When the unit block (B) is seated between the unit blocks (B) arranged on all odd-numbered layers while repeating the steps 5-1 to 8-1, the unit block supply unit 300 sends the unit block ( Stop supplying B) and return to the initial standby position.

When the even-numbered layer arrangement is completed in this way, the unit block bonding step is performed, and then the odd-numbered layer arrangement step, the unit block bonding step, the lowering step of the mold bottom, and the even-numbered layer arrangement step are repeatedly performed.

8 is a cross-sectional view showing a state in which the arrangement of the unit blocks to the top height of the 3D product to be manufactured according to the method for arranging the unit blocks for producing a three-dimensional shape according to the present invention is completed. When the unit blocks (B) are stacked step by step to the top height, the arrangement of the unit blocks (B) is completed.

And, when the bottom surface 230 of the forming die 200 is raised after the arrangement of the unit blocks B is completed, the unbonded unit blocks B1 are removed and finally formed as shown in FIG. 9 . This completed 3D product (C) can be obtained.

As such, although preferred embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the above-described embodiments, and those skilled in the art to which the present invention pertains can modify without departing from the spirit of the present invention It is possible, and such modifications will fall within the scope of the present invention.

100...table 110...through hole
200...Forming mold 210...Edge
220...guide enclosure 230...bottom
231... Unit block seating groove 300... Unit block supply part
310...Body 340...Top
341...Second unit block receiving hole 320...Lower plate
320a... Bottom 321... Unit block passing hole
322...evacuation home 330...middle board
331... 1st unit block receiving hole 500... Junction unit
B...unit block

Claims (16)

Supply of unit blocks installed on the work table, the forming frame installed on the work bench, and the unit block installed on the work bench and arranged in a plane layer by layer inside the forming frame while moving in the three directions of X, Y, and Z In the unit block arrangement device for three-dimensional shape production having a part,
The unit block supply unit is formed with a main body located on the upper part of the mold, and the unit block passing holes through which the unit block passes at regular intervals, and is installed inside the main body to supply the unit block to the inside of the mold. It has a lower plate and first unit block accommodating holes corresponding one-to-one to the unit block passing holes, and the unit block accommodated in the first unit block accommodating hole passes through the unit block of the lower plate while horizontally reciprocating at the upper part of the lower plate. Provided with an intermediate plate for supplying the ball;
An upper plate is provided on the upper portion of the intermediate moving plate, which horizontally reciprocates and has second unit block accommodating holes corresponding to the first unit block accommodating holes on a one-to-one basis;
a through hole is formed in the workbench;
The forming frame includes an edge portion fixed to the upper part of the work bench to surround the through hole, a guide housing installed on the lower part of the work bench to communicate with the through hole, and the unit block supply unit while descending stepwise along the inside of the guide housing. having a bottom surface on which the supplied unit blocks are stacked;
Unit block seating grooves are formed at regular intervals on the bottom surface of the molding frame so that the adjacent three unit blocks form an equilateral triangular arrangement;
The unit block passing hole and the first unit block accommodating hole are arranged at intervals as large as n1 multiples of the diameter of the unit block in the x-axis direction and n2 multiples of the diameter of the unit block in the y-axis direction, respectively. Device. delete delete delete delete The method of claim 1,
An evacuation groove corresponding to the unit block seating groove is formed on the lower surface of the lower plate. A unit block arrangement device for producing a three-dimensional shape. The method of claim 1,
A unit block arrangement device for three-dimensional shape production having a bonding unit installed on the upper part of the workbench to apply bonding force to the unit blocks arranged inside the mold while horizontally moving in the X and Y two-axis directions. The method of claim 1,
A unit block arrangement device for manufacturing a three-dimensional shape formed in the same height as the unit block so that each of the first unit block receiving holes can accommodate only a single unit block. An odd-numbered layer arranging step in which a plurality of unit blocks are planely arranged on a molding frame so that three adjacent unit blocks form an equilateral triangle shape, and a plurality of unit blocks of the odd-numbered layer so that the three adjacent unit blocks form an equilateral triangle shape including an even-numbered layer arrangement step which is planarly arranged thereon;
In the odd-numbered layer arranging step, unit blocks are supplied a plurality of times at intervals of n1 multiples of the diameter of the unit blocks in the x-axis direction, and unit blocks are supplied multiple times at intervals of n2 multiples of the diameter of the unit blocks in the y-axis direction. A method of arranging unit blocks for three-dimensional shape production. delete 10. The method of claim 9,
The even-numbered layer arrangement step is
supplying multiple times at intervals of n1 multiples of the diameter of the unit blocks in the x-axis direction between unit blocks arranged in odd-numbered layers;
A method of arranging unit blocks for three-dimensional shape production by supplying a plurality of times at intervals of n2 multiples of the diameter of the unit blocks in the y-axis direction between unit blocks arranged in odd-numbered layers. 10. The method of claim 9,
After the odd-numbered layer arrangement step,
a unit block bonding step of bonding unit blocks constituting a three-dimensional shape to be manufactured among unit blocks arranged in odd-numbered layers; and
A method for arranging unit blocks for three-dimensional shape production in which the bottom surface of the molding die is lowered to a predetermined height. 10. The method of claim 9,
The odd-numbered layer arrangement step is
a first step of supplying unit blocks at intervals of n1 multiples of the diameter of the unit blocks in the x-axis direction and at intervals of n2 multiples of the diameter of the unit blocks in the y-axis direction;
a second step of supplying unit blocks at intervals of n1 multiples while repeating horizontal movement n1-1 times by the diameter of the unit blocks in the x-axis direction;
a third step of supplying the unit blocks at intervals of n2 multiples by moving in the 60˚ direction by the diameter of the unit blocks; and
- A method for arranging unit blocks for three-dimensional shape production, comprising a fourth step of supplying unit blocks at intervals of n1 multiples while repeating horizontal movement n1-1 times by the diameter of the unit blocks in the x-axis direction. 14. The method of claim 13,
Until the arrangement of all unit blocks of odd-numbered layers is completed after step 4,
a fifth step of supplying the unit blocks at intervals of n2 multiples by moving in the 60˚ direction by the diameter of the unit blocks in the y-axis direction;
a sixth step of supplying unit blocks at intervals of n1 multiples while repeating horizontal movement n1-1 times as much as the diameter of the unit blocks in the x-axis direction;
a seventh step of supplying the unit blocks at intervals of n2 multiples by moving in the 120˚ direction by the diameter of the unit blocks in the y-axis direction; and
- A method for arranging unit blocks for three-dimensional shape production, characterized in that repeating the eighth step of supplying the unit blocks at intervals of n1 multiples while repeating the horizontal movement n1-1 times as much as the diameter of the unit blocks in the x-axis direction. 12. The method of claim 11,
The even-numbered layer arrangement step is
a step 1-1 of supplying unit blocks at intervals of n1 multiples of the diameter of the unit blocks in the x-axis direction and n2 multiples of the diameter of the unit blocks in the y-axis direction between unit blocks arranged in odd-numbered layers;
a 2-1 step of supplying unit blocks at intervals of n1 multiples while repeating horizontal movement n1-1 times as much as the diameter of the unit block in the x-axis direction;
a 3-1 step of supplying unit blocks at intervals of n2 multiples between unit blocks arranged in odd-numbered layers after moving as much as the diameter of the unit blocks in the 120˚ direction; and
-Manufacturing a three-dimensional shape including the 4-1 step of supplying unit blocks at intervals of n1 multiples between unit blocks arranged in odd-numbered layers while repeating horizontal movement n1-1 times as much as the diameter of the unit block in the x-axis direction How to arrange unit blocks for use. 16. The method of claim 15,
Until the unit blocks are seated between the unit blocks arranged in all odd-numbered layers after step 4-1,
a step 5-1 of supplying the unit blocks at intervals of n2 multiples between the unit blocks arranged in odd-numbered layers by moving as much as the diameter of the unit blocks in the 60˚ direction;
a 6-1 step of supplying unit blocks at intervals of n1 multiples between unit blocks arranged in odd-numbered layers while repeating horizontal movement n1-1 times by the diameter of the unit blocks in the x-axis direction;
a 7-1 step of supplying unit blocks at intervals of n2 multiples between unit blocks arranged in odd-numbered layers after moving as much as the diameter of the unit blocks in the 120° direction; and
A step 8-1 of repeatedly supplying unit blocks at intervals of n1 multiples between unit blocks arranged in odd-numbered layers while repeating horizontal movement n1-1 times by the diameter of the unit blocks in the x-axis direction. Unit block arrangement method for 3D shape production.

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