KR101692739B1

KR101692739B1 - Manufacturing Method and Apparatus of Pattern for Mold

Info

Publication number: KR101692739B1
Application number: KR1020150056521A
Authority: KR
Inventors: 박노진
Original assignee: 박노진; 주식회사 퓨쳐캐스트
Priority date: 2015-04-22
Filing date: 2015-04-22
Publication date: 2017-01-04
Also published as: KR20160125718A

Abstract

The method for manufacturing a mold for manufacturing a mold according to the present invention is characterized in that the first modeling data for shaping a three-dimensional model for molding a mold is used to generate second modeling data including position information of each block for stacking blocks for model building A second step of stacking the blocks on the substrate surface while moving according to the positional information included in the second modeling data to fabricate a three-dimensional temporary model that is formed in the three-dimensional model, And a third step of fabricating the 3D model by processing the model according to the first modeling data.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a mold manufacturing method,

The present invention relates to a method of manufacturing a mold for making a mold and an apparatus for manufacturing the same, and more particularly, to a method of manufacturing a mold for producing a mold by molding a unit block for making a model of wood or a synthetic resin material in a three- The present invention relates to a method and apparatus for manufacturing a mold for making a mold, which can significantly reduce the cost and time required for manufacturing a mold for molding.

In general, casting is one of the metal processing techniques for pouring molten metal into molds such as sand molds and molds and solidifying them to produce various types of casting products. Forging, sheet metal, welding, etc. It can be mass-produced with relatively simple facilities and easy to process than other processing methods.

In order to obtain the above-described casting product, a pattern having a shape of a cast product P must first be provided. In the past, since the above-mentioned model is mainly manufactured by processing wood material such as wood, this model is also referred to as a wooden form .

As shown in FIG. 1, when a casting product P to be manufactured by casting is symmetrical like a bottle as shown in FIG. 1, for example, 10) are formed on the upper surface of the casting product (P) by using wooden material corresponding to the half shape of the cast product (P).

When the model is completed, the casting product is covered with each model to form an upper mold and a lower mold, respectively, and the molten metal solution is poured between upper and lower molds to solidify the casting product.

In this case, if the model is small, it is generally manufactured by machining a single piece of wood. However, if the model is large, such as an automobile or an engine of a ship, it is difficult to obtain a large- And the shape of the wooden piece 21 are adhered to each other to produce a model.

In this case, to prevent deformation or damage of the completed model, the timber piece 21 made of high quality wood that has been naturally dried for a long period of time should be used, and a skilled worker must use the shape of the model and the state of the wood piece 21 And the shape and the like of the wooden piece 21 is selected in consideration of the above-mentioned problems, the cost and time required for model production are excessively increased.

Therefore, in order to solve such a problem, recently, as described in [Document 1], there has been developed a method of manufacturing a model made of a mixture of cement and sand, but in this case, It is inevitable to increase the time and cost (labor cost) required for model production.

[Patent Document 1] Korean Patent No. 10-1340683 (issued on December 5, 2013)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art as described above, and it is an object of the present invention to provide a three-dimensional shape forming unit capable of moving along a three-dimensional coordinate by laminating unit blocks for model building of wood or synthetic resin Which can reduce the cost and time required for the production of a mold for a mold, by automatically producing a three-dimensional model for producing a mold to be produced.

According to another aspect of the present invention, there is provided a method of manufacturing a mold for making a mold, the method comprising: a first step of forming a three-dimensional model for forming a mold by using first modeling data, A first step of obtaining second modeling data including a first modeling data and a second modeling data, a third step of producing a three-dimensional temporary model in which blocks are stacked on a substrate surface while moving according to position information included in the second modeling data, And a third step of fabricating the 3D model by processing the 3D model according to the first modeling data.

Further, in the first step, the second modeling data is obtained by transforming the first modeling data so that the overhang is formed in the outer direction of the outer surface of the three-dimensional model.

In addition, in the second step, the three-dimensional temporary model is manufactured by a first operation for applying an adhesive to a position at which the block is to be stacked, a second operation for stacking the block at the position where the adhesive is applied, And a third operation.

The second step may include sequentially performing the first to third operations on the same position of the substrate surface while moving along the position information included in the second modeling data, At least one of the first operation and the third operation can be performed at the same time.

The apparatus for producing a mold for making a mold according to the present invention is characterized in that the first modeling data for shaping a three-dimensional model for molding a mold is used, and a second modeling A data conversion unit for obtaining data, a three-dimensional shape forming unit for forming a three-dimensional shape by stacking blocks while moving along three-dimensional coordinates, a processor for processing a three-dimensional shape while moving along three- Dimensional shaping unit to form a three-dimensional temporary model formed on the base material in accordance with the positional information included in the data, and when the production of the three-dimensional temporary model is completed, And a control unit for controlling the operation of the machine so as to process the shape of the 3D model according to the coordinate information included in the data. It shall be.

The three-dimensional shape forming unit may include a first working machine for applying an adhesive to a position where the blocks are to be stacked, a second working machine for stacking blocks at a position where the adhesive is applied, and a third working machine for fixing the stacked blocks .

The three-dimensional shape forming unit sequentially performs the operations of the first to third working units on the same position of the substrate surface while moving along the position information included in the second modeling data, And the operation of at least one of the first to third working machines can be performed simultaneously with respect to the position.

The second working machine may include a block cartridge having a plurality of blocks housed therein and a block supplying device for sequentially supplying the blocks inside the block cartridge to a position where the adhesive is applied.

Further, the block cartridge is detachably coupled to the block supply device.

The method and apparatus for manufacturing a mold for manufacturing a mold according to the present invention are characterized in that a three-dimensional shape forming unit capable of moving along three-dimensional coordinates is used to form a unit block for making a model of wood or synthetic resin, By automatically producing the model, there is an advantage in that the cost and time, which are used in the production of the model for the mold production, can be remarkably reduced in comparison with the conventional technology.

In addition, the method and apparatus for manufacturing a mold for manufacturing a mold according to the present invention are characterized in that a unitary block for model making is stacked to form a three-dimensional temporary model, which is formed on the outer surface of the three- It is possible to improve the dimensional and surface roughness of the manufactured 3D model and to maintain the dimensional stability of the mold in a very stable manner.

In addition, the apparatus for producing a mold for making a mold according to the present invention is not only easy to supply, but also can be supplied in various forms as well as being easy to supply, by constituting the block supplied to the three-dimensional shape forming unit for forming the three- The present invention is advantageous in that various cartographic features can be easily implemented by replacing the cartridges accommodating the blocks of the form as needed.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view for explaining a method of manufacturing a mold for making a mold according to the prior art,
2 is a diagram showing the overall configuration of an apparatus for producing a mold for making a mold according to the present invention,
FIGS. 3A and 3B are views for explaining the configuration of a block stacking module applied to the device shown in FIG. 2,
4 is a view showing a configuration of a second working machine applied to the apparatus shown in Fig. 2,
5 and 6 are sectional views taken along the line AA of FIG. 4 for explaining the operation of the second working machine shown in FIG. 4,
FIG. 7 is a view showing another modification of the second working machine shown in FIG. 4;
8 is a block diagram for explaining the operation configuration of the apparatus shown in FIG. 2,
Fig. 9 is a process diagram for explaining a manufacturing method of a casting mold using the apparatus shown in Fig. 2, and Fig.
FIGS. 10, 11A, 11B, and 11C are diagrams showing a three-dimensional temporary model produced by the method for manufacturing a mold for making a mold according to the present invention, respectively.

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

FIG. 2 is a view showing the overall structure of a manufacturing apparatus for a mold for making a mold according to the present invention, and FIGS. 3A and 3B are views for explaining the structure of a block lamination module applied to the apparatus shown in FIG.

4 is a cross-sectional view taken along the line AA in FIG. 4 for explaining the operation of the second working machine shown in FIG. 4, and FIG. 4 is a view showing a configuration of a second working machine applied to the apparatus shown in FIG. Fig. 7 is a view showing another modification of the second working machine shown in Fig. 4. Fig.

Fig. 8 is a block diagram for explaining the operation configuration of the apparatus shown in Fig. 2, Fig. 9 is a process diagram for explaining a method of manufacturing a mold for making a mold using the apparatus shown in Fig. 2, And FIGS. 11A, 11B, and 11C are diagrams showing a three-dimensional temporary model produced by the method for manufacturing a mold for making a mold according to the present invention, respectively.

The apparatus for manufacturing a mold for manufacturing a mold according to the present invention may be a PC, a USB, a CD-ROM, or the like, which is used for shaping (or designing) a 3D model for producing a mold, or stores data information (first modeling data described later) And a main body 50 of a model making apparatus connected to the designing means 30 by the communication line 35 to receive first modeling data which is the shape information of the three dimensional model, do.

In this case, the design means is equipped with a program for three-dimensional shape modeling such as CAD, and the data information or the first modeling data can be easily recognized by a person skilled in the art by using the design means Dimensional position information (or three-dimensional coordinate information) of each node as data representing a three-dimensional model.

The main body 50 is mounted with a control unit 100 for controlling operations of the three-dimensional shaping unit 200 and the machining unit 80 to be described later. The main body 50 is provided with power input, work start signal input, A plurality of input devices 51 and 53 for inputting conditions and the like and a display device 52 for displaying the working state of the model making device and the like may be installed.

Although the designing means 30 and the main body 50 are separately formed in this embodiment, the designing means 30 and the main body 50 are not limited to this, and if necessary, the designing means 30 and the main body 50 may be integrally formed .

One side of the main body 50 is provided with a three-dimensional shape forming unit 200 (see FIG. 1) for forming a three-dimensional shape by laminating blocks while moving along three-dimensional coordinates on the surface of the substrate 10 provided on the work table D ) Are coupled or connected in a communicable state.

In this case, the substrate 10 refers to a conventional plate or the like that provides a base surface for making a model, and the block B for model building refers to a block such as wood or plastic Means that it is made of the same shape (rectangular plate or original plate) using synthetic resin material.

The three-dimensional shape forming unit 200 includes a movable rocker module 60 including a plurality of movable rockers 61, 62, and 63 movable along three-dimensional coordinates (i.e., capable of moving in three directions) And a block stacking module 70 which is coupled to the module 60 and stacks and fixes the model building block B on the substrate 10 side.

The movable rocker module 60 includes a first movable rocker 61 connected to one side of the main body 10 or the unshown support portion to move in a first direction (for example, the X direction) And a second movable arm 62 connected to the second movable arm 62 to move in a third direction (for example, the Y direction) 3 moveable arm 63, but the present invention is not limited thereto, and the moveable arm module 60 may be constructed by using any one of normal manipulators capable of three-dimensional coordinate movement within the range of performing the same function Can be preferably implemented.

The block stacking module 70 includes a first work machine 71 for applying an adhesive to a position where the block for model building B is to be stacked, a second work machine 71 for stacking the block B at the position where the adhesive is applied, And a third work machine 73 for fixing the stacked blocks B. In the present embodiment, the first to third work machines are sequentially connected to each other in the lateral direction.

At this time, the position where the block is stacked is determined by the position information included in the second modeling data obtained by converting the first modeling data as described later.

In the present embodiment, for example, the first working machine 71 includes a tubular first working machine main body 71a in which an adhesive is received, a second working machine body 71b provided under the first working machine main body 71a, The nozzle device 71b may include a roll coater structure or the like within the range of performing the same function.

The second working machine 72 is a device for supplying the unit block B one by one to the position where the adhesive is applied. The second working machine 72 includes a tubular block cartridge 72e in which a plurality of blocks B are housed, And a tubular block supply device main body 72a to which the block cartridge 72e is coupled and sequentially supplies the blocks B in the block cartridge 72e one by one.

In the present embodiment, as an example, the case where the block cartridge 72e is detachably coupled to the upper portion of the block supply device main body 72a has been described as an example, but if necessary, the block cartridge 72e may be provided as a block supply It is also possible to have a structure that is formed integrally with the apparatus main body 72a and refills unit blocks as necessary.

If the block cartridge 72e is replaced with a new one as in the present embodiment, the user can replace the upper and lower covers C1 and C2 of the block cartridge 72e, The upper and lower covers C1 and C2 can be omitted.

As described above, when the block supplied to the second working machine 72 is configured as a cartridge-type replaceable type, it is easy to supply the block. Further, as in the present embodiment, various types of blocks such as a disk- There is also an advantage that implementation of various model shapes is facilitated by replacing the accommodated cartridge as needed.

In the present embodiment, the block supply main body 72a is formed in a tubular shape in which the upper surface on which the block cartridge 72e is engaged and the lower surface on which the block B is discharged are opened as an example. However, A pair of stoppers 72c for preventing the discharge of the block B are provided at the lower portion of the hinge 72b so that the hinge 72b is rotatable and the stoppers 72c are respectively rotated And a hydraulic cylinder 72d for sequentially discharging the unit blocks B one by one.

6, the block supply device main body 72a according to the present embodiment has a structure in which the stopper 72c is rotated by the operation of the hydraulic cylinder 72d, B) one by one.

6 (d), when the piston rod of the hydraulic cylinder 72d is retracted, the stopper 72c is rotated about the hinge 72b by a normal elasticity such as a torsion spring supported on one side of the body 72a The structure is restored to its original position by the restoration body. Since the above structure can be expected by anyone skilled in the art, a detailed description of the constitution will be omitted here.

In this case, the block supply system of the block supply apparatus main body 72a shown in this embodiment is only one example, and it can be configured in various different ways according to a design change of a person skilled in the art within the scope of performing the same function Of course.

7, a plate-shaped stopper 172c is provided on the lower surface of the block supply device body 172a to prevent the block from being discharged. On both sides of the block supply device body 172a, (Not shown) through which the piston rod of the inflow cylinder 172d reciprocates and a through hole (not shown) through which the block B pushed by the piston rod is discharged.

In this case, a guide protrusion 172f for guiding the movement of the block to be discharged may protrude outward from a side surface of the through-hole through which the block is discharged.

The third working machine 73 is for firmly fixing the stacked block B at the position where the adhesive is applied as described above. In the present embodiment, for example, the third working machine 73 is provided inside A tubular third working body 73a in which a hydraulic device, a solenoid device, or a mechanical device for driving the apparatus is accommodated and a block fixing device 73b provided in the lower portion of the third working body 73a .

In this case, the block fixing device 73b may be provided with a nail gun, a stapler, or the like commonly used in woodworking, or an adhesive applied by pressure (or with heat) Or the like.

On the other hand, on the other side of the main body 50 or the support (not shown), three-dimensional machining (three-dimensional machining in the present invention) is performed while moving along the three-dimensional coordinates on the surface of the substrate 10 provided on the work table D, The processing machine 80 may be operated by using a separate manipulator (capable of three-dimensional coordinate movement) from the block stacking module 70, Or may be configured to be installed integrally or alternatively in the same moveable arm module 60 as the module 70. [

At this time, the processing machine 80 can be preferably implemented using a conventional CNC or a machining center capable of three-dimensional processing while moving according to input coordinates.

First, the first modeling data for shaping the three-dimensional model 20 to be produced from the designing means 30 is input through the input unit 110 to the modeling apparatus The control unit 100 converts the input data into second modeling data for shaping the three-dimensional temporary model 25 having a larger outline size than the three-dimensional model through the data conversion unit 120.

At this time, the data conversion unit 120 converts the first modeling data according to a conversion method previously stored in a memory (not shown).

In this embodiment, the first modeling data is converted into second modeling data so that the outer shape of the three-dimensional model 20 is formed in the outward direction.

For this purpose, the data conversion unit 120 transforms the outward direction (i.e., the outward direction of the outer surface of the model) and the upward direction (i.e., the stacking direction) at each point (or node point) forming the outer surface of the 3D model 20, The first modeling data is converted into the second modeling data so that the shape of the unit block and / or the size (i.e., the width, length, and height) of the unit block are considered .

In addition, the second modeling data thus transformed includes position information (i.e., three-dimensional coordinate information) of each block B for stacking blocks for model building.

When the first and second modeling data are obtained in the above-described manner, the controller 100 controls the movable arm driving unit 65 to produce the three-dimensional temporary model 25 and the three-dimensional model 20 in a manner to be described later, The first to third working machine driving portions 130a, 130b, and 130c, and the machine driving portion 85, as shown in FIG.

The control unit 100, the input unit 110 and the data conversion unit 120 may be provided in any one of the design means 30 or the main body 50 as described above, And may be provided in a device structure in which the design means 30 and the main body 50 are integrated as described above.

The method of manufacturing a model using the apparatus for manufacturing a mold according to the present invention is as follows. First, an operator designes a three-dimensional model (20) for producing a mold by using the design means (30) The first modeling data to be shaped is transmitted to the control unit 100 through the input unit 110 (S10, S20).

When the step S10 is completed, the controller 100 transforms the input first modeling data as described above, and outputs the three-dimensional temporary model 25, which is a shape that is overlaid on the outer surface of the three-dimensional model 20, The second modeling data is obtained (S30).

At this time, the second modeling data includes position information of each block for stacking the model building block B as described above.

When the step S30 is completed, the controller 100 moves the block lamination module 70 by the movable rocking module 60 according to the position information included in the second modeling data, Dimensional shaping unit 200 to control the operation of the three-dimensional shaping unit 200 to produce the 3D temporary model 25 by stacking and fixing the block B (S40).

In this case, the operation of the three-dimensional shape forming unit 200 is shown in FIG. 10. As can be seen from the drawing, the first working machine moves along the outermost left line of the three-dimensional model, (G), the block lamination module (70) is moved in the rightward direction by a predetermined distance and then moved in the downward direction in the drawing.

In this process, the first working machine 71 continues to apply the adhesive to the other required positions, and the second working machine 72 located beside the first working machine 71 moves the block B to the position G where the adhesive is applied And the like.

In addition, when the movement to the lower direction is completed, the block stacking module 70 is moved in the rightward direction by a predetermined distance and then moved upward in the drawing.

In this process, the first working machine 71 continues to apply the adhesive to the other required positions, and the second working machine 72 located beside the first working machine 71 moves the block B to the position G where the adhesive is applied And the third working machine performs an operation of fixing the block B raised on the adhesive by using the fixture F. [

In addition, the above-described operation is performed while gradually increasing the height of the three-dimensional shaping unit 200 from the bottom surface of the substrate to the plane including the highest point of the three-dimensional model. Specifically, When the work of the above-described method is completed along the entire frame line of the tangent 3D model, the 3D shape forming unit 200 (preferably, the block shape) is formed by a predetermined height (preferably by the thickness of the block) until reaching the maximum height of the 3D model The same operation is performed on the plane.

As described above, in the model making apparatus according to the present invention, the block stacking module 70 moves along a predetermined path (in the zigzag direction in this embodiment), and at the same position on the surface of the substrate 10, A process of applying an adhesive, a process of stacking a block at a position where an adhesive is applied, and a process of securing a stacked block are sequentially performed, while at least one of the above operations (I.e., a model making operation) can be performed at a remarkably fast speed.

11A and 11B show a three-dimensional temporary model 25 completed by the above-described operation. If necessary, the three-dimensional temporary model 25 may be used for modeling The block B may be stacked such that the upper and lower blocks are staggered (i.e., in a zigzag form) as in normal brick-piling.

In the present embodiment, the three-dimensional temporary model 25 is formed in a solid shape filled with hollows. However, the present invention is not limited thereto, and if necessary, The hollow portion may be formed at the center of the block B to reduce the stacking time and the number of stacked layers.

When the step S40 is completed, the controller 100 dries the 3D temporary model 25 for a predetermined period of time so that the 3D temporary model 25 can solidify solidly. The drying time depends on the shape of the 3D temporary model 25, May be set differently for a few seconds to several days depending on the thickness and the characteristics of the adhesive used (S50).

When the drying of the three-dimensional temporary model 25 is completed in step S50, the controller 100 controls the processor 80 to three-dimensionally process the three-dimensional temporary model 25 according to the first modeling data, Dimensional model 20 to be finally produced (S60)

As described above, according to the present invention, a method and apparatus for manufacturing a mold for manufacturing a mold are manufactured by laminating unit blocks for making a model of wood or synthetic resin in a three-dimensional shape forming unit movable along three-dimensional coordinates The three-dimensional model for mold production is automatically produced, which is advantageous in that the cost and time for manufacturing the mold for mold production can be remarkably reduced when compared with the conventional technology.

10: substrate 20: model
50: main body 60: movable rock module
70: block stacking module 80:
100: control unit 120: data conversion unit
200: Three-dimensional shape forming unit

Claims

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A data conversion unit for obtaining second modeling data including positional information of each block for stacking blocks for model building using first modeling data for shaping a three-dimensional model for making a mold;
A first work machine for applying an adhesive to a position where the block is to be stacked, a second work machine for stacking blocks at a position where the adhesive is applied, and a third work machine for fixing the stacked blocks, A three-dimensional shaping unit including a movable rocking module for moving the block stacking module along three-dimensional coordinates; And
And a control unit for controlling the operation of the three-dimensional shaping unit so as to form a three-dimensional temporary model which is formed by laminating blocks on a base material according to the position information included in the second modeling data,
Wherein the three-dimensional shape forming unit sequentially performs operations of the first to third working units with respect to a first position, which is one of positions where the blocks are stacked, while performing an operation on the first position Wherein the operation is selectively performed by a work machine that does not perform the operation at the first position for the second position, which is another position where the blocks are stacked.

6. The method of claim 5,
Further comprising a processor for processing the three-dimensional shape while moving along three-dimensional coordinates,
Wherein the control unit controls the operation of the machining apparatus to process the shape of the 3D model according to the coordinate information included in the first modeling data when the 3D model is completed, .

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6. The method of claim 5,
Wherein the second working machine comprises a block cartridge in which a plurality of blocks are housed and a block supply device for sequentially supplying the blocks inside the block cartridge to a position where the adhesive is applied. Device.

9. The method of claim 8,
Wherein the block cartridge is detachably coupled to the block supply device.