JP2019098694A - Flask design device, flask production method, concrete molding production method, flask design system, and flask design method - Google Patents

Abstract

To provide a flask design device capable of converting a flak for a concrete molding into data output by a 3D printer.SOLUTION: A design data acquisition part 100 acquires design data 200 of a flask of a concrete molding. As the design data 200, e.g., the cAD data of the flask of a concrete molding can be given. A partial data creation part 110 creates partial data 210 of the part output for a 3D printer corresponding to the instruction information of a user from the design data acquired by the design data acquisition part 100. An output data conversion part 120 converts the design data 200 processed by the partial data creation part 110 into output data 220 for a 3D printer. The partial data creation part 110 performs a process of adding solid molding of a character or a pattern to the design data 200.SELECTED DRAWING: Figure 2

Description

  In particular, the present invention relates to a mold design apparatus for a concrete molded product, a mold, a concrete molded product, a mold design system, and a mold design method.

Conventionally, "box culverts" that can be connected in a box shape are known to those skilled in the art as an example of a concrete molded product such as a secondary concrete product (precast concrete) or the like. Box culverts are used in a variety of applications, such as pipes (pipes) for draining sewage and rainwater, roads, sidewalks, water storage tanks, fire protection water tanks, joint grooves, and rain water penetration grooves.
Box culverts are manufactured under factory control, so their quality is stable. In addition, construction using a box culvert can shorten the construction period as compared to forming concrete on site.

  The form of concrete moldings including these box culverts is mainly made of steel, and welding was used for its assembly. Therefore, labor and time required for welding, deformation due to welding heat, and the like occur, which requires a great deal of time for manufacturing.

Here, referring to Patent Document 1, a 3D printer for forming a three-dimensional object is an outer frame portion having a shape corresponding to the outer frame of at least a part of the target object, and the hollow space is surrounded A construction method of a shaped object is described which includes an outer frame portion forming step of forming an outer frame portion and a reinforcing step of reinforcing the outer frame portion formed in the outer frame portion forming step.
The method of constructing a three-dimensional object of Patent Document 1 can reduce design restrictions in terms of materials and form, can shorten the construction time, and can further process the three-dimensional forming apparatus. It is possible to reduce the load.

JP, 2015-186851, A

  However, the method of constructing a three-dimensional object of Patent Document 1 can not be applied to a concrete molded article such as a box culvert manufactured using a mold.

  The present invention has been made in view of such a situation, and an object of the present invention is to solve the above-mentioned problems and to provide a formwork design apparatus capable of applying shaping by a 3D printer to a concrete molded article.

The formwork design apparatus according to the present invention includes a design data acquisition unit that acquires design data of a mold of a concrete molded product, and the design data acquired by the design data acquisition unit in correspondence with user instruction information. A partial data creation unit that creates partial data of a portion to be output for a 3D printer, and an output data conversion unit that converts the partial data created by the partial data creation unit into output data for the 3D printer It is characterized by
In the mold design apparatus of the present invention, the concrete molded product is a box culvert, and the partial data creation unit corresponds to the instruction information related to the arrangement when the box culvert is connected along a curve. The partial data of an oblique cutting member for forming the box culvert into a single oblique line is created.
In the formwork design apparatus of the present invention, the concrete molded product is a box culvert, and the partial data creation unit is the partial data of the corner portion of the box culvert and / or a part of the surface of the box culvert And generating the partial data according to.
The apparatus for designing a formwork of the present invention is characterized in that the concrete molded product is a box culvert, and the partial data creation unit creates the partial data for forming a hole in the surface of the box culvert. .
In the formwork designing apparatus according to the present invention, the output data conversion unit fills gaps in the design data so as to prevent a leak at the time of molding of the concrete molded product, and reduces a joint portion of the surface to make the surface uneven. To convert smoothly.
The form design apparatus of the present invention further includes an output unit that outputs the output data converted by the output data conversion unit to the 3D printer.
The formwork of the present invention is characterized by being outputted by the output data created by the formwork designing apparatus.
The concrete molded article of the present invention is characterized by being manufactured by the above-mentioned formwork.
The formwork design system according to the present invention comprises a formwork design apparatus for designing a formwork of a concrete molded article, and a 3D printer for creating a formwork of the concrete molded article from output data outputted by the formwork design apparatus. The mold design system includes a design data acquisition unit that acquires design data of a mold of the concrete molded product, and a user from the design data acquired by the design data acquisition unit. A partial data creation unit that creates partial data of a portion to be output for a 3D printer in accordance with the instruction information of 3D, and the partial data created by the partial data creation unit is converted to output data for the 3D printer An output unit configured to output the output data converted by the output data conversion unit to the 3D printer. And wherein the Rukoto.
The mold design method of the present invention is a mold design method executed by a mold design apparatus for designing a mold of a concrete molded article, wherein the mold design apparatus is designed data of a mold of a concrete molded article. Is acquired, and partial data of a portion to be output for a 3D printer is created from the acquired design data in accordance with the user's instruction information, and the created partial data is output data for the 3D printer To convert.

  According to the present invention, acquiring design data of a mold for a concrete-formed product, creating partial data of a portion to be output for a 3D printer, and converting the created partial data into output data for a 3D printer Thus, it is possible to provide a formwork design apparatus capable of applying shaping with a 3D printer to a concrete molded article such as a box culvert manufactured using a formwork.

It is a system configuration figure of a formwork design system concerning an embodiment of the invention. It is a block diagram which shows the control structure of the formwork design system shown in FIG. It is a flowchart of the form design output process which concerns on embodiment of this invention. It is a conceptual diagram of the design data acquisition process shown in FIG. It is a conceptual diagram of arrangement | positioning of the box culvert in the diagonal cutting member creation process shown in FIG. It is the schematic of each box culvert shown in FIG. It is a schematic perspective view of the oblique cutting member shown in FIG. It is a schematic front view of the corner part member in the surface corner member preparation process shown in FIG. 3, and a surface part member. It is a schematic side view of the hole member in the hole member creation process shown in FIG.

Embodiment
[System configuration of form design system X]
First, the system configuration of a mold design system X according to the embodiment of the present invention will be described with reference to FIG. The formwork design system X of the present embodiment is a system for designing a formwork of a concrete molded product. Moreover, the frame design system X can also manufacture the part of the formwork of the said concrete formation goods. In this embodiment, an example in which a box culvert is mainly used as the concrete molded article will be described.
The form design system X is configured by connecting the form design apparatus 1 to the 3D printer 3 via the network 2.

  The form design apparatus 1 is an information processing apparatus provided with control calculation means for designing a form of a concrete molded product and a recording medium. The form design device 1 may be, for example, a portable or stationary PC (Personal Computer), FC (Factory Computer), a workstation, a server, a portable terminal such as a smartphone or a tablet terminal, or the like.

  Network 2 is a general network. The network 2 is, for example, a local area network (LAN), a wide area network (WAN), a short distance network, a mobile telephone network, or the like. The network 2 may be a network of various wired or wireless connections. This wireless connection may be, for example, a general wireless LAN or Bluetooth (registered trademark).

  The 3D printer 3 is a 3D printer of various methods for forming a 3D print based on the output data 220 (FIG. 2). As the 3D printer 3, for example, devices of various formation methods such as a FDM (Fused Deposition Modeling) method, an optical formation method, an inkjet method, and a powder sintering method can be used. Moreover, as a raw material used for modeling of 3D print in 3D printer 3, various resin such as ABS resin, PLA resin, ultraviolet curing resin, gypsum, starch powder, metal corresponding to modeling method of 3D print of the printer It is possible to use various materials such as powder and cement.

(Configuration of form design device 1)
The mold design apparatus 1 further includes a control unit 10, an image processing unit 11, a storage unit 12, an input unit 13, a display unit 14, and a network connection unit 15. The respective units may be connected by a common bus or may be further connected by a dedicated bus between the respective units.

  The control unit 10 is a control operation unit that controls the entire mold design device 1. The control unit 10 may be, for example, a general central processing unit (CPU) or a micro processing unit (MPU).

  The image processing unit 11 is a control operation unit that executes image processing and the like. The image processing unit 11 may be, for example, a graphics processing unit (GPU) or a digital signal processor (DSP). In addition, the image processing unit 11 may be able to execute various renderings of various three-dimensional data such as the Open GL standard, and shader operations at high speed. In addition, the image processing unit 11 may function as an accelerator that supports calculations such as a ray tracing method and a radiosity method. In addition, the image processing unit 11 may have a support function of physical operation such as structure or strength calculation. Further, the image processing unit 11 may have a support function such as division of polygons and calculation of normals.

  The storage unit 12 is a non-temporary recording medium in which various data are stored. The storage unit 12 is, for example, various random access memories (RAMs), read only memories (ROMs), embedded multi media cards (eMMCs), solid state drives (SSDs), hard disk drives (HDDs), optical recording media, and the like. . Here, regarding the recording medium accessed at high speed such as the RAM of the storage unit 12, it may be directly connected to the control unit 10.

  The input unit 13 is a device for the user of the mold design apparatus 1 to issue various instructions. The input unit 13 is, for example, a keyboard, a mouse, a touch pad, a touch panel, a digitizer, a 3D mouse, a stereo camera, and the like.

The display unit 14 is a device that displays various data of the mold design device 1. The display unit 14 may be, for example, various displays such as a liquid crystal display, an organic EL (Organic EL) or an OLED (Organic light-emitting diode) display.
The input unit 13 and the display unit 14 may be configured as an integrated touch panel.

  The network connection unit 15 is an interface related to, for example, a wireless LAN, a wired LAN, a cellular phone dial-up connection, etc., for connecting to the 3D printer 3 via the network 2.

[Control configuration of form design system X]
Next, a control configuration of the mold design system X according to the embodiment of the present invention will be described with reference to FIG.
The control unit 10 of the mold design apparatus 1 includes a design data acquisition unit 100, a partial data creation unit 110, an output data conversion unit 120, and an output unit 130.
The storage unit 12 of the mold design apparatus 1 stores design data 200, partial data 210, and output data 220.

The design data acquisition unit 100 acquires design data 200 of a mold of a concrete molded product.
The design data acquisition unit 100 acquires the design data 200 from, for example, another information processing apparatus via the network 2 or an external recording medium such as various flash memories or an optical recording medium according to a user instruction. Further, at this time, the design data acquisition unit 100 may convert the design data 200 into a format suitable for formwork design.

  The partial data creation unit 110 creates, from the design data 200 acquired by the design data acquisition unit 100, partial data 210 of a portion to be output for a 3D printer, corresponding to the user's instruction information. Specifically, the partial data creation unit 110 may create the partial data 210 of the oblique cutting member corresponding to the arrangement data of the design data 200. Further, the partial data creation unit 110 may create the partial data 210 of the corner portion member and / or the partial data 210 of the surface portion member. Further, the partial data creation unit 110 may create the partial data 210 of the hole partial member.

  Also, the partial data creation unit 110 may interactively obtain the user's instruction information using, for example, a GUI (Graphical User Interface). The instruction information may be information on instruction of arrangement data of the concrete molded product. Further, the instruction information may be information of an instruction related to the arrangement when the box culverts are connected along the curve. Further, the instruction information may be information of various characters or instructions of three-dimensional modeling. Further, the instruction information may be information on the position or size of a hole for forming a hole in the surface, or an instruction indicating formation.

The output data conversion unit 120 converts the partial data 210 created by the partial data creation unit 110 into output data 220 for a 3D printer. At this time, the output data conversion unit 120 converts the output data 220 suitable for a concrete molded product.
Specifically, the output data conversion unit 120 may, for example, divide the partial data 210 into specific units and convert the divided design data 200 into output data 220. The specific unit may be, for example, a size that can be output by a 3D printer.
In addition, the output data conversion unit 120 performs processing to fill gaps in the partial data 210 and reduce joint portions of the surface, for example, in order to prevent a leak at the time of molding of a concrete molded product, It may be converted.
Further, the output data conversion unit 120 may smoothly convert, for example, the unevenness of the surface on which the concrete molded product is molded.

  The output unit 130 outputs the output data 220 converted by the output data conversion unit 120 to the 3D printer. At this time, the output unit 130 transmits, for example, the output data 220 to the 3D printer that outputs the output via the network 2.

The design data 200 is data for designing a form of a concrete molded product. Specifically, the design data 200 may be a box culvert form, as the type of concrete molded article. The design data 200 may be, for example, CAD (Computer-Aided Design) data of a mold. The CAD data may be, for example, 3D data including solid coordinates and surface coordinates of a polygon (polygon) such as a file of “.DXF”, “.dwg”, and “.stl” format.
In addition, the design data 200 may include arrangement data of a concrete formed article, data indicating the type of partial data 210 described below, and the like. Also, the arrangement data may include user instruction information on the arrangement when the box culverts are connected along a curve. The instruction information of the user relating to this arrangement may be the number, a straight line (center line) which is a tangent of a curve, or the like. The design data 200 may also include the position of the partial data 210 on the design data 200 and data of the bulking material, the holding member, and the like.

The partial data 210 is data of a portion of the design data 200 to be formed by the 3D printer 3. The partial data 210 may be 3D data including, for example, three-dimensional coordinates and surface coordinates of the oblique cutting member, the corner partial member, the surface partial member, or the hole partial member. Here, the oblique cutting member is a member inserted from the bottom side of the mold or the concrete injection side in order to form the box culvert into a one-sided slant. Further, the corner portion member is a member held by the steel formwork corresponding to the corner portion of the box culvert. The surface portion member is a member held by a steel form or the like corresponding to a surface portion related to a part of the surface of the box culvert. This surface part member may contain various characters and three-dimensional modeling. The hole portion member is a member corresponding to the hole portion for forming the hole in the surface of the box culvert. The hole portion corresponds to a human hole or the like for inspection of the pipe, and it is necessary to form not only a circular shape but also a shape or the like according to a receiving frame of a manhole.
The design data 200 may include parameters corresponding to the type of the partial data 210, image data, and the like. The parameters and image data may be data of the angle of the oblique cutting member, the shape of the corner portion member, and the shape of the surface portion member or the hole portion member. The data of this formation may be, for example, data specifying the size, depth, shape and the like. Also, the data of this formation may include various image data. This image data may be, for example, grayscale bitmap data, vector data, data of 3D polygons, or the like. Among these, in the bitmap data, the grayscale density of each pixel may correspond to unevenness such as the height at the time of modeling of the 3D printer 3. Further, this image data may include character data other than bitmap data. This character data may include attribute data such as character size and font.

  The output data 220 may be STL (Standard Triangulated Language) data or the like that can be output by the 3D printer 3. Further, it may be a command sequence for control of the 3D printer 3, tool path data, slice (cross section, slice) data (hereinafter simply referred to as "slice data") or the like.

  Here, the control unit 10 of the form design apparatus 1 executes a device driver of the 3D printer 3 installed on the OS (Operating System) stored in the storage unit 12 and a control program such as an application program. It is possible to function as the design data acquisition unit 100, the partial data creation unit 110, the output data conversion unit 120, and the output unit 130.

[Formwork design output processing by form design system X]
Next, with reference to FIGS. 3 to 5, details of a form design output process for designing a form and outputting it by realizing the form design method by the form design system X according to the embodiment of the present invention will be described.
In the formwork design output processing of the present embodiment, design data 200 conforming to the standard of a general concrete molded product is acquired, and this is used to create partial data 210 corresponding to the user's instruction information by the application GUI, This is converted into output data 220 for the 3D printer 3. The output data 220 thus output is three-dimensionally shaped by the 3D printer 3.
Further, the mold design output process of the present embodiment can be realized mainly by the control unit 10 and the image processing unit 11 of the mold design device 1 executing the control program stored in the storage unit 12. .
Hereinafter, with reference to the flowchart of FIG. 3, the details of the form design output process according to the present embodiment will be described step by step.

(Step S101)
First, the design data acquisition unit 100 performs design data acquisition processing.
Here, the user starts the application of the form design device 1 and designates the reading of the design data 200 by the input unit 13. Then, the design data acquisition unit 100 acquires the design data 200. At this time, the design data acquisition unit 100 reads design data 200 such as a file in a place designated by the user, and stores the design data 200 in the storage unit 12.
FIGS. 4A to 4E show examples in which the design data acquisition unit 100 draws the design data 200 of the mold.

  In addition, the design data acquisition unit 100 may convert the file format of the design data 200 into a format suitable for form design of a concrete molded product. Specifically, for example, the design data acquisition unit 100 may designate each part from CAD data or the like, classify it into a tree format, and convert polygons of each part into data of a unique format. At this time, the design data acquisition unit 100 may appropriately complement the surface if the direction of the normal is reversed between the surfaces, or if there is an incomplete data location with a gap or a gap. .

(Step S102)
Next, when an instruction of the user such as “create partial data” in the GUI of the application is acquired by the input unit 13, the partial data creation unit 110 selects the type of the partial data 210. Specifically, for example, the partial data creation unit 110 causes the image processing unit 11 to 3D render the read design data 200 and display the design data 200 on the display unit 14. Further, the partial data creation unit 110 instructs the user to indicate the type and creation location of the partial data 210, and acquires instruction information. The partial data creation unit 110 branches to processing of each partial data 210 by selection of the partial data 210 included in the instruction information. Here, the process branches into any of the processes for creating partial data 210 of the oblique cutting member, the corner portion, the surface portion, or the hole portion.

(Step S103)
When creating a diagonal cutting member, the partial data creation unit 110 performs diagonal cutting member creation processing.
First, the partial data creation unit 110 acquires instruction information related to the arrangement when the box culverts are connected along the curve. Specifically, the partial data creation unit 110 causes the input unit 13 to instruct the user by using the GUI on instruction information related to the arrangement when the box culverts are connected along the curve. The instruction information may be the number of box culverts, the position (coordinates) of the center line to be arranged, or the like. In addition, it is also possible to designate the angle R of the curve in the instruction information.
In addition, the partial data creation unit 110 sets this instruction information as the arrangement data of the design data 200, and causes the display unit 14 to display the state of the arrangement for confirmation by the user. Then, the partial data creation unit 110 creates the partial data 210 of the oblique cutting member and stores the partial data 210 in the storage unit 12. As described above, since the angle of the single oblique of the oblique cutting member is not constant, the partial data creation unit 110 corresponds to the partial data 210 of the oblique cutting member of a plurality of angles corresponding to the setting of the arrangement data of the design data 200. It can be created.
Thereafter, the partial data creation unit 110 proceeds with the process to step S106.

Here, with reference to specific examples shown in FIGS. 5 to 7, examples of arrangement data and oblique cutting members in the oblique cutting member creation process will be described.
In the plan view of FIG. 5, box culverts B of 2000 (inside height) × 2000 (inside width) × 2000 (length) mm are connected, and are laid in a curved manner with respect to the center lines A1 and A2 from the end. It is an example which shows arrangement in the case of doing. In this example, the length of the portion that needs to be disposed at an angle R is 9.6 m. Further, in this example, the arrangement along the curve is performed by using box culverts C1 to C4 molded into a single-slope. Specifically, in this example, the partial data creation unit 110 is a single-sided one having 8 degrees and 40 minutes at one place between box culverts C2 to C3 and 34 degrees and 40 minutes at the other four places. Set in the placement data to lay two pairs together.

The external appearance of the box culvert B shown in FIG. 5 and the one-sided box culvert C1 will be described with reference to FIG.
FIG. 6 (a) is a side view of the box culvert B when manufactured in this state. FIG. 6 (b) is a side view of the box culvert C1. In these figures, the state at the time of manufacture of a box culvert is shown, and it is illustrated so that the injection side of concrete of a formwork may be upper side and the bottom side may be lower. This is because when each box culvert is manufactured, the formwork and reinforcing bars (not shown) are fixed and concrete is poured, with the receiving joint such as a stamped type being up and down. is there. That is, each box culvert in the layout diagram of FIG. 5 is actually manufactured in a state of being inclined by 90 degrees with respect to the drawing example of FIG.
FIG. 6 (c) is a front view when box culvert B is placed after manufacture. In the figure, a laying mortar D and a foundation concrete E are illustrated below the box culvert B.

Referring back to FIG. 6 (b), the partial data creation unit 110 creates partial data 211 of the oblique cutting member in the case of manufacturing the box culvert C1 of one side.
Specifically, the partial data creation unit 110 creates partial data 211 of an oblique cutting member to be inserted into a normal mold and raise the bottom of the input concrete so as to be oblique. Moreover, the raising material F, such as steel, is mounted in the lower part of this diagonal cutting member. In addition, the partial data creation unit 110 may add and set the design data 200 for the bulking material F.

FIG. 7 shows an example in which the partial data 211 of the oblique cutting member shown in FIG. 6B is drawn as a semi-transparent projection view.
The oblique cutting member includes a joint portion 211a and a base portion 211b. By using the oblique cutting member having the joint portion 211a, it is possible to easily manufacture a box culvert having a receiving and inserting like a printing type.

(Step S104)
When creating a corner portion and / or a surface portion, the partial data creation unit 110 performs a surface corner member creation process.
When the corner portion of the box culvert is instructed by the instruction information, the partial data creation unit 110 also instructs the user whether curved surface processing or specific shaping is to be performed. In addition, the partial data creation unit 110 also instructs the user regarding the radius of this curved surface processing, modeling, and the like. The instruction on the formation may be an instruction to input image data or the like.
In addition, when the partial portion of the box culvert is instructed, the partial data generation unit 110 inputs the position, size, depth, shape, etc. of the portion, and image data corresponding to various characters and three-dimensional modeling. Prompt the user.
Then, the partial data creation unit 110 creates the partial data 212 of the corner portion member and / or the partial data 213 of the surface portion member corresponding to the instruction information of the user. The partial data creation unit 110 obtains the coordinates of the design data 200 of the instructed part, creates polygons, divides the polygons, and the like, and creates partial data 210 corresponding to the instruction information. In addition, the partial data creation unit 110 may add and set, to the design data 200, a holding member for holding the corner portion member and / or the surface portion member on a steel formwork or the like.
Thereafter, the partial data creation unit 110 proceeds with the process to step S106.

The partial data 212 of the corner partial member and the partial data 213 of the surface partial member will be described with reference to FIG. FIG. 8 shows a screen example in which a side view of “core” which is a formwork of a portion corresponding to the inside of a box culvert in FIG. 4E is displayed on the display unit 14 and a part is replaced by partial data 210. It shows.
Specifically, in FIG. 8, the partial data creation unit 110 creates, for example, partial data 212 of the corner partial member of the radius indicated by the instruction information. Here, partial data 212 is arranged at four corners.
Further, the partial data creation unit 110 creates, for example, partial data 213 of surface partial members including characters, patterns, and the like designated by the user. Here, the partial data 213 is disposed on the surface of the steel form 202 in contact with the concrete.

Although not shown in FIG. 8, holding members for holding the corner portion member and the surface portion member may be added to the steel mold frame 202, respectively.
Moreover, not only the example of this figure, the user can designate arbitrary characters and patterns in the corner portion member and the surface portion member, and can designate the size, the shape, and the like of the character and the pattern. That is, in the case of characters, font, size, depth and height of solid, deformation of shape and curved surface, etc. can be specified. Also, in the case of a pattern, it is possible to specify bitmap data, 3D data, and the like. Based on these instructions, the partial data creation unit 110 converts the data into appropriate polygon data and creates the partial data 210.

(Step S105)
When creating a hole portion, the partial data creation unit 110 performs a hole member creation process.
The partial data creation unit 110 instructs the user to indicate instruction information on the position and shape of the hole member for forming the hole portion. In this case, the instruction information may have a diameter in the case of a circular shape, and may have an instruction to input image data etc. in the case of a shape that matches the receiving frame of the manhole.
Then, the partial data creation unit 110 creates the partial data 210 of the hole partial member corresponding to the instruction information of the user.
Thereafter, the partial data creation unit 110 proceeds with the process to step S106.

FIG. 9 shows partial data 214 of this hole member. In this side view, box culvert B is an example in which partial data 214 of the hole partial member of the hole is provided.
Although not shown here, a holding member for holding the steel form may be added.

(Step S106)
Here, the output data conversion unit 120 performs output data conversion processing.
For example, the user gives an instruction of “convert to output data” using the input unit 13 with the GUI of the application. The output data conversion unit 120 acquires this instruction. Then, the output data conversion unit 120 converts the partial data 210 into, for example, output data 220 for the 3D printer 3.
At this time, the output data conversion unit 120 may divide the output data 220 into the size of a specific unit that can be output by the 3D printer 3.
In addition, the output data conversion unit 120 may perform strength calculation and structure calculation when the partial data 210 is added to the design data 200. As a result, the output data conversion unit 120 can output the output data 220 in units adjusted so as to maintain the strength not to lose shape during molding of concrete.

  In addition, for example, the output data conversion unit 120 may divide the output data 220 so that the output member has a strength that is less likely to be damaged or deformed. At this time, the output data conversion unit 120 may convert the output data 220 in accordance with the difference between the intensities when the intensities assumed at the time of original design and at the time of output are different. Specifically, although the design data 200 is design data of a conventional steel form, when the raw material of modeling of the 3D printer 3 includes a member such as resin, the output data conversion unit 120 conforms to this. Conversion to increase the strength. At this time, for example, the output data conversion unit 120 may thicken the polygon of the portion of the output data 220 where the stress is large, or increase the unit of division and increase the strength by combination. Further, the unit of division of the output data 220 may be changed or the assumed strength or the like may be changed according to the method of molding the concrete molded product designated by the user.

Further, the output data conversion unit 120 may convert the data into the output data 220, for example, after filling the gaps of the partial data 210 and performing processing to reduce the joint portion of the surface. At this time, for example, when converting the polygons of the partial data 210 into STL data, the output data conversion unit 120 doubles or thickens the polygons of the concrete forming surface so that gaps are not sufficiently generated. It is also good. In addition, when creating slice data, the output data conversion unit 120 adds a command such that shaping of the 3D printer 3 proceeds so as to orthogonalize the output direction of the material on each surface or close the gap. Alternatively, they may be slightly shifted one by one. Thereby, it becomes possible to prevent the leak at the time of manufacture of a concrete cast.
Conversely, the output data conversion unit 120 makes the inside of the polygon of the partial data 210 a space, and then creates a structure like a beam inside, so that the outputted formwork is less likely to be deformed and the strength is enhanced. It may be converted into output data 220.

Further, the output data conversion unit 120 may smoothly convert, for example, the unevenness of the surface on which the concrete molded product is molded.
Specifically, if the angle between the polygons on the surface on which the concrete is to be formed is not gentler than the specific angle, the polygons of the partial data 210 may be divided and smoothed. Also, if the angle between the face of the curve, the character or the pattern polygon is acute, the partial data 210 may be divided and smoothed. This makes it easy to peel off the concrete molded article after molding.
In addition, the output data conversion unit 120 may perform the above-described change on the design data 200 itself. The output data conversion unit 120 may perform this change corresponding to the bulking material, the holding member, and the like.

(Step S107)
Next, the output unit 130 performs output processing.
The output unit 130 outputs the output data 220 converted by the output data conversion unit 120 to the 3D printer. In the present embodiment, the output unit 130 transmits the output data 220 to the 3D printer 3.
Upon acquiring the output data 220, the 3D printer 3 forms in 3D based on the raw material. Thereby, it becomes possible to manufacture the formwork of a concrete molded product using the output data 220 created by the formwork designing device 1.

Here, the main component of the 3D printer 3 is filled with an adhesive or putty such as epoxy resin or UV curing resin, or the divided ones are adhered, or the surface of the member is polished and smoothed. May be used. When the raw material of modeling of the 3D printer 3 is soft such as gypsum, a resin or the like may be added separately to increase the strength.
Moreover, this output member may be added to the form of the concrete molded product of the design data 200, and may be used for molding of concrete described below. Under the present circumstances, you may use suitably between a formwork, such as steel, etc., and the output member, also about a raising material, a holding member, etc.

[Manufacturing of concrete moldings]
Here, the example which manufactures a concrete molded product with the formwork designed and manufactured by the formwork design system X which concerns on embodiment of this invention is demonstrated.
When a member shaped using a resin as a raw material, such as an FDM method or an optical shaping method, is added to the mold of the concrete molded article of the present embodiment, it is preferable to use high fluidity concrete for molding.
Specifically, high fluidity concrete is used which is excellent in fluidity, is not separated, and is excellent in filling property without vibration even by using various additives such as blast furnace slag, fly ash, fine silica powder, etc., chemical additives, etc. To mold. At this time, molding may be performed without vibration or by micro-vibration for removing air bubbles only on the surface. That is, by using such highly fluid concrete, it is possible to produce a solid concrete product without much vibration even with a resin mold having a small rigidity.
In addition, by manufacturing the form with a 3D printer, it is possible to manufacture a secondary concrete product which is inexpensive and excellent in shortening the delivery time, and in particular, is excellent in appearance.

By configuring as described above, the following effects can be obtained.
A conventional concrete molded product is manufactured using solid concrete with a slump of about 3 to 8 cm while being subjected to strong vibration by a table vibrator or a form vibrator, etc., to produce a product that is solid and has excellent appearance characteristics. Was. However, for that purpose, the formwork needs a firm (strong) structure, and it is necessary to manufacture a strong thing by welding, bolting, etc. using steel materials and steel plates.
For this reason, the method described in Patent Document 1 can not be used for a mold of such a concrete molded article. As a result, it has not been possible to apply the complex shaping ability with 3D printer to concrete moldings produced using a formwork.
On the other hand, the form design apparatus 1 of the form design system X according to the embodiment of the present invention acquires a design data acquisition unit 100 that acquires design data 200 of a form of a concrete molded product, and a design data acquisition unit. A partial data creation unit 110 that creates partial data 210 of a portion to be output for the 3D printer 3 from the design data acquired by 100 according to the user's instruction information, and the design processed by the partial data creation unit 110 And an output data conversion unit 120 configured to convert the data 200 into output data 220 for the 3D printer 3.
By configuring in this manner, it is possible to model a portion requiring complicated molding of the mold of the concrete molded product with a 3D printer. That is, it becomes possible to use a mold made of steel or the like and a member formed by the 3D printer 3. Therefore, it becomes possible to provide formwork design device 1 which can be used for manufacture of a concrete cast.
In addition, in the mold design system X of the present embodiment, only the part requiring complicated molding may be molded by the 3D printer 3, so the material cost necessary for molding the 3D printer 3 can be reduced, and the molding time Can be shortened.

Also, conventionally, when box culverts are used for ducts, they have often been buried under roads or in rivers. Therefore, box culverts were connected and arranged along the curve as needed. In this way, box culverts connected along a curve have sometimes been raised at an angle in a conventional formwork. However, this oblique angle was not necessarily constant. That is, when manufacturing box culverts of one oblique, a formwork corresponding to the angle of each oblique cut has been required one by one.
On the other hand, in the mold design apparatus 1 of the present embodiment, the concrete molded product is a box culvert, and the partial data creation unit 110 instructs information related to the arrangement when the box culvert is connected along a curve And the partial data 210 of the oblique cutting member for forming the box culvert into a single-incline.
By configuring in this manner, partial data 210 corresponding to an angle of one slope that is not necessarily constant can be created from the design data 200, and the diagonal cutting member can be easily shaped. This makes it possible to easily manufacture box culverts connected along the curve. For this reason, it is possible to reduce the time and effort for manufacturing compared to the prior art, and as a result, to reduce the cost.

In addition, there is a case where the angle of the oblique cutting member suddenly changes when the pipe extension is made to move back and forth due to a construction error or the like with the laying as the box culvert as the pipe ridge and the like. At such time, there is a fear that if the steel diagonal cut member is newly manufactured, the construction delivery date may not be met.
On the other hand, since the form design apparatus 1 of the present embodiment can easily create the partial data 210 whose angle etc. is changed and can use the 3D printer 3 to immediately manufacture the oblique cutting member Regardless of the situation, it is possible to respond flexibly.
Further, in the conventional single-slope box culvert, since the steel material is inserted into the form at an oblique angle, the oblique cut surface is flat.
On the other hand, it is also possible for the form design apparatus 1 of the present embodiment to form an oblique cutting member to which a joint portion is added by the 3D printer 3. This makes it possible to easily manufacture a single-sloped box culvert such as a stamp.

Further, in the formwork designing apparatus 1 of the present embodiment, the concrete molded product is a box culvert, and the partial data creation unit 110 is one of partial data 210 of the corner portion of the box culvert and / or one of the surfaces of the box culvert. It is characterized in that partial data 210 related to a part is created.
With such a configuration, by replacing the corner portion with a member shaped by the 3D printer 3, it becomes possible to manufacture a box culvert in consideration of the landscape.
In addition, by providing members of the surface portion which is variously designed by the 3D printer 3 in a part of a mold made of steel or the like, it becomes possible to manufacture a box culvert excellent in design. That is, since the 3D printer can produce a large number of articles in small quantities, it becomes possible to "customize" and provide various shaped concrete molded products in accordance with the intention of the orderer.

In addition, there was a need for a hole for inspection in the pipe. This hole is not simply circular, but needs to be processed into a shape that matches the manhole receiving frame, which requires cost and days of manufacture.
On the other hand, in the mold design apparatus 1 of the present embodiment, the concrete molded product is a box culvert, and the partial data creation unit 110 creates partial data 210 for forming a hole in the surface of the box culvert. It is characterized by
With such a configuration, the 3D printer 3 can easily manufacture the formwork corresponding to the hole for inspection or the like in any shape. Therefore, the delivery time can be shortened and the cost can be reduced.

In addition, in the conventional steel formwork, labor and time required for welding, deformation due to welding heat, and the like occur, which requires a large amount of time for manufacturing, and for example, a delivery time of at least three weeks is required.
On the other hand, in the mold design apparatus 1 of the present embodiment, the output data 220 can be created from the partial data 210 of the part requiring welding or the like, and can be shaped by the 3D printer 3. If this shaped member is held by a holding member or the like in a mold already made of steel or the like, it can be used as a mold required for producing a concrete-formed product within several hours to several days. . As a result, it is possible to shorten the delivery time for the production of a concrete molded article such as precast concrete and to facilitate the planning of the production process.

Also, in the past, the cost of molding accounted for in the manufacturing cost was high, and the orderer of the molded concrete had to bear the cost of molding.
On the other hand, with the mold design apparatus 1 of the present embodiment, it is possible to easily form parts necessary for the 3D printer 3 and manufacture a mold. In this way, it is possible to manufacture the mold at a lower cost than conventional steel molds. As a result, it is possible to reduce the formwork cost in the manufacturing cost of the concrete molded product, and to suppress the product sales price, so that a sales promotion effect is obtained, which leads to an increase in profit.
In addition, by designing the mold with the mold design apparatus 1 of the present embodiment, it is possible to increase the degree of freedom in design of a concrete molded product or the like.

Further, in the mold design apparatus 1 according to the embodiment of the present invention, the output data conversion unit 120 is adjusted to have a size that can be output by a 3D printer, and maintain a strength that does not lose shape during molding. It is characterized in that partial data 210 is divided in a specific unit, and converted into output data 220 for each divided data.
With this configuration, even when used as a mold of a 3D printer using a resin or the like as a raw material, it becomes possible to manufacture a mold having sufficient strength and little deformation.

Further, in the mold design apparatus 1 according to the embodiment of the present invention, the output data conversion unit 120 fills in the gaps of the partial data 210 so as to prevent a leak at the time of molding of the concrete molded article, To reduce the
With such a configuration, it is possible to manufacture a form suitable for the form of a concrete molded product that needs to be filled with concrete, even if it is formed and output by a 3D printer. In addition, since the gaps in the manufactured formwork are reduced, it is possible to reduce leakage even with highly fluid concrete.

In addition, since steel used in conventional molds has good adhesion to concrete, a mold release agent for demolding is required when producing a concrete molded article.
On the other hand, the mold design apparatus 1 according to the embodiment of the present invention is characterized in that the output data conversion unit 120 smoothly converts the unevenness of the surface of the output data 220 where the concrete molded product is molded. Do.
By this configuration, it is possible to suppress the use of the release agent. In particular, when a resin is used as a raw material for modeling of the 3D printer 3, the releasability of the mold from the concrete is good, and a release agent such as mold oil is not necessary. Thereby, one process of manufacture of a concrete cast can be saved, and it can contribute to efficiency improvement and cost reduction.

The mold design apparatus 1 according to the embodiment of the present invention is further characterized by further including an output unit 130 that outputs the output data 220 converted by the output data conversion unit 120 to a 3D printer.
By configuring in this manner, it is possible to create the output data 220 optimized for the 3D printer 3, and it becomes possible to manufacture a more precise, high-speed, low-cost form.

Further, conventional steel formwork causes corrosion (rust) during storage control when stored for a long period of time, and it has been necessary to carry out pretreatment such as polishing at the time of reuse.
On the other hand, a member produced by shaping the output data 220 designed by the mold design apparatus 1 according to the embodiment of the present invention by a 3D printer such as a 3D printer 3 is created each time by a 3D printer Since it is possible to use it, it is possible to save labor.
Moreover, when the raw material of modeling of 3D printer is resin etc., rust is not generated and the effect that it is excellent in storage control is also acquired. Further, in this case, compared to the conventional steel formwork, since the weight of the member such as resin is reduced, handling of the formwork is facilitated.

Other Embodiments
In addition, in the above-mentioned embodiment, 3D printer 3 was described about the example which is a usual 3D printer. However, the 3D printer 3 may be a dedicated 3D printer optimized, specially manufactured or tailored for the manufacture of the part members of the form of the concrete molding. Specifically, as the 3D printer 3, in order to prevent leakage of water and concrete, a dense filling mechanism may be provided to fill the material so that a gap is not easily generated. In addition, the 3D printer 3 may have a smooth surface mechanism that melts, scrapes, or polishes the surface with warm air, infrared light, a laser, or the like in order to smooth the surface on which the concrete is shaped. Further, the 3D printer 3 may use an apparatus of a type that cuts various materials with a metal fitting, a laser, or the like based on the output data 220, in addition to a so-called general 3D printer.
In this case, the design data 200 or the partial data 210 may be used for a mold of a concrete molded article such as vibration molding, no vibration using high-flowing concrete, or fine vibration to take air bubbles only on the surface. Moreover, according to the raw material which the 3D printer 3 models, the kind of concrete molded article may be selected. For example, when the 3D printer 3 is a metal sintering method, it is also possible to use data of a mold that requires rigidity for centrifugal molding.

Further, the 3D printer 3 may be directly connected to the form design apparatus 1 without passing through the network 2. That is, the network connection unit 15 may be directly connected to the 3D printer 3 via various interfaces such as USB (Universal Serial Bus), serial, and parallel.
Thus, when the form design apparatus 1 and the 3D printer 3 are directly connected, the output unit 130 directly controls the 3D printer 3 by creating slice data to be described later based on the output data 220. You may send a command.

The partial data creation unit 110 can also create the partial data 210 of the diagonal cutting member that is closed from the concrete input side.
In this case, the output data conversion unit 120 converts the partial data 210 of the oblique cutting member that is closed from the concrete input side into the output data 220 in which the gap is not filled or the air vent hole is opened. It is also good. As a result, it is possible to apply air pressure at the time of manufacture to release air.
Moreover, when using resin as a raw material of modeling in the 3D printer 3, if the unevenness | corrugation of the output data 220 is originally smooth in a specific ratio, it is not necessary to use a release agent.

  Further, the output data conversion unit 120 may convert the design data 200 itself into the output data 220. Further, the design data 200 at this time may be data of a part of a mold of a concrete molded product or whole data.

  It is needless to say that the configuration and operation of the above-described embodiment are examples and can be appropriately changed and executed without departing from the scope of the present invention.

  The formwork designing apparatus of the present invention can be used industrially because the 3D printer can be applied to the formwork of a concrete molded product.

Reference Signs List 1 formwork design apparatus 2 network 3 3D printer 10 control unit 11 image processing unit 12 storage unit 13 input unit 14 display unit 15 network connection unit 100 design data acquisition unit 110 partial data creation unit 120 output data conversion unit 130 output unit 200 design Data 202 Steel formwork 210, 211, 212, 213, 214 Partial data 211a Joint portion 211b Base portion 220 Output data A1, A2 Center line B, C1, C2, C3, C4 Box culvert D Cover mortar E Foundation concrete F Raised Material R Angle X Formwork Design System

The formwork design apparatus according to the present invention includes a design data acquisition unit that acquires design data of a mold of a concrete molded product, and the design data acquired by the design data acquisition unit in correspondence with user instruction information. A partial data creation unit that creates partial data of a portion to be output for a 3D printer, and an output data conversion unit that converts the partial data created by the partial data creation unit into output data for the 3D printer The output data conversion unit is configured to fill gaps in the design data, reduce joint portions of the surface, and convert the output data so as to prevent a leak at the time of molding of the concrete molded product. Do.
In the mold design apparatus of the present invention, the concrete molded product is a box culvert, and the partial data creation unit corresponds to the instruction information related to the arrangement when the box culvert is connected along a curve. The partial data of an oblique cutting member for forming the box culvert into a single oblique line is created.
In the formwork design apparatus of the present invention, the concrete molded product is a box culvert, and the partial data creation unit is the partial data of the corner portion of the box culvert and / or a part of the surface of the box culvert And generating the partial data according to.
The apparatus for designing a formwork of the present invention is characterized in that the concrete molded product is a box culvert, and the partial data creation unit creates the partial data for forming a hole in the surface of the box culvert. .
The apparatus for designing a mold of the present invention is characterized in that the output data conversion unit smoothly converts the unevenness of the surface .
The form design apparatus of the present invention further includes an output unit that outputs the output data converted by the output data conversion unit to the 3D printer.
The formwork manufacturing method according to the present invention is characterized in that the formwork is output and manufactured based on the output data created by the formwork design apparatus.
The method of producing a concrete molded article according to the present invention is characterized in that a concrete molded article is produced by the above-mentioned formwork.
The formwork design system according to the present invention comprises a formwork design apparatus for designing a formwork of a concrete molded article, and a 3D printer for creating a formwork of the concrete molded article from output data outputted by the formwork design apparatus. The mold design system includes a design data acquisition unit that acquires design data of a mold of the concrete molded product, and a user from the design data acquired by the design data acquisition unit. A partial data creation unit that creates partial data of a portion to be output for a 3D printer in accordance with the instruction information of 3D, and the partial data created by the partial data creation unit is converted to output data for the 3D printer An output unit configured to output the output data converted by the output data conversion unit to the 3D printer. , The output data converting unit, to prevent leakage during the molding of the concrete moldings, fills a gap of the design data, after performing a process of reducing the joint portion of the surface is converted into the output data It is characterized by
The mold design method of the present invention is a mold design method executed by a mold design apparatus for designing a mold of a concrete molded article, wherein the mold design apparatus is designed data of a mold of a concrete molded article. The partial data of the portion to be output for 3D printer is created corresponding to the user's instruction information from the obtained design data, and the created partial data is used for forming the concrete molded article In order to prevent leaks in the process, the design data is filled and the joint portion of the surface is reduced, and then converted into output data for the 3D printer.

Claims (10)

A design data acquisition unit for acquiring design data of a concrete molded article form,
A partial data creation unit that creates partial data of a portion to be output for a 3D printer from the design data acquired by the design data acquisition unit, corresponding to user instruction information;
And an output data conversion unit configured to convert the partial data generated by the partial data generation unit into output data for the 3D printer. The concrete molding is a box culvert,
The partial data creation unit
The partial data of the oblique cutting member for forming the box culvert into a single-inclined part is created corresponding to the instruction information concerning the arrangement when the box culvert is connected along a curve. The formwork design apparatus of claim 1. The concrete molding is a box culvert,
The partial data creation unit
The partial data of the corner portion of the box culvert and / or
The mold design apparatus according to claim 1, wherein the partial data relating to a part of the surface of the box culvert is created. The concrete molding is a box culvert,
The partial data creation unit
The apparatus for designing a formwork according to claim 1, wherein the partial data for forming a hole in the surface of the box culvert is created. The output data conversion unit
The gap between the design data is filled, the joint portion of the surface is reduced, and the unevenness of the surface is smoothly converted so as to prevent the leakage at the time of the molding of the concrete molded product. The formwork design device according to any one of the items. The formwork design apparatus according to any one of claims 1 to 5, further comprising: an output unit configured to output the output data converted by the output data conversion unit to the 3D printer. A formwork characterized by being output according to output data created by the formwork designing apparatus according to any one of claims 1 to 6. It manufactured with the formwork of Claim 7, The concrete molded article characterized by the above-mentioned. A mold design system including a mold design apparatus for designing a mold of a concrete molded product, and a 3D printer for creating a mold of the concrete molded product from output data outputted by the mold design apparatus,
The mold design apparatus is
A design data acquisition unit for acquiring design data of a mold of the concrete molded product;
A partial data creation unit that creates partial data of a portion to be output for a 3D printer from the design data acquired by the design data acquisition unit, corresponding to user instruction information;
An output data conversion unit that converts the partial data generated by the partial data generation unit into output data for the 3D printer;
And a output unit configured to output the output data converted by the output data conversion unit to the 3D printer. A method for designing a formwork to be executed by a formwork design apparatus for designing a formwork of a concrete molded product, the formwork design apparatus comprising:
Acquire design data of concrete form parts,
From the acquired design data, the partial data of the portion to be output for 3D printer is created corresponding to the user's instruction information,
A formwork design method comprising: converting the created partial data into output data for the 3D printer.

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