3D additive manufacturing device

Abstract

A three-dimensional laminate shaping device 10 is provided with a calibration jig 200 having a plurality of types of calibration marks arranged on the same surface thereof. Thus, the three-dimensional laminate shaping device 10 enables a plurality of types of calibration with one jig using the calibration jig 200 having the plurality of types of calibration marks arranged on the same surface thereof.

Description

Technical Field

[0001] The present disclosure relates to a technique for calibration performed when ink is ejected from a discharge head for three-dimensional printing.

Background Art

[0002] In Patent Document 1, a test pattern is formed on a test piece placed in an inspection area by an inkjet head, imaged by a CCD camera provided in the head unit, the landing position is recognized based on the image obtained from the CCD camera, and the injection timing of the ink ejected from the nozzles of the inkjet head is corrected. A printed circuit board wiring pattern forming apparatus is described.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the apparatus described in Patent Document 1 mainly aims to correct the injection timing of the ink ejected from the nozzles of the inkjet head, and Patent Document 1 does not describe other types of calibration. When performing multiple types of calibration in one apparatus, conventionally, test patterns etc. corresponding to the content of each calibration are formed in separate areas for each process performed after each calibration, and calibration is performed based on these test patterns etc.

[0005] An object of the present disclosure is to provide a technique that enables multiple types of calibration to be performed with one jig.

Means for Solving the Problems

[0006] To achieve the above objective, the 3D additive manufacturing apparatus of this disclosure is a plate-shaped jig in which multiple types of calibration marks are arranged on the same surface. The first printing apparatus has a first discharge head for discharging structural material, and prints by discharging the structural material from the first discharge head to laminate the structural material onto a substrate, Equipped with The multiple types of calibration marks include a first alignment mark for aligning the printing position when the first printing device prints the structural material. It is characterized by the following: [Effects of the Invention]

[0007] According to this disclosure, it becomes possible to perform multiple types of calibration using a single jig. [Brief explanation of the drawing]

[0008] [Figure 1] This figure shows a schematic configuration of a three-dimensional additive manufacturing apparatus according to one embodiment of the present disclosure. [Figure 2] This is a block diagram showing the control device for the 3D additive manufacturing apparatus shown in Figure 1. [Figure 3] This figure shows an example of a calibration jig provided in the 3D additive manufacturing apparatus shown in Figure 1. [Figure 4] This is a magnified view of a portion of the calibration jig shown in Figure 3. [Modes for carrying out the invention]

[0009] The embodiments of this disclosure will be described in detail below with reference to the drawings.

[0010] Figure 1 shows a schematic configuration of a three-dimensional additive manufacturing apparatus 10 according to one embodiment of the present disclosure. The three-dimensional additive manufacturing apparatus 10 comprises a transport device 20, a first molding unit 22, a second molding unit 23, a third molding unit 24, a fourth molding unit 25, an imaging unit 26, and a control device 28 (see Figure 2). The transport device 20, the first molding unit 22, the second molding unit 23, the third molding unit 24, the fourth molding unit 25, and the imaging unit 26 are arranged on a base 29 of the three-dimensional additive manufacturing apparatus 10. The base 29 is generally rectangular in shape, and in the following description, the longitudinal direction of the base 29 will be referred to as the X-axis direction, the short direction of the base 29 as the Y-axis direction, and the direction perpendicular to both the X-axis direction and the Y-axis direction as the Z-axis direction. The Z-axis direction is the same direction as the vertical direction.

[0011] The transport device 20 comprises an X-axis slide mechanism 30 and a Y-axis slide mechanism 32. The X-axis slide mechanism 30 includes an X-axis slide rail 34 and an X-axis slider 36. The X-axis slide rail 34 is mounted on a base 29 so as to extend in the X-axis direction. The X-axis slider 36 is held by the X-axis slide rail 34 so as to be slidable in the X-axis direction. Furthermore, the X-axis slide mechanism 30 has an electromagnetic motor 38 (see Figure 2), and the X-axis slider 36 moves to any position in the X-axis direction by the drive of the electromagnetic motor 38. The Y-axis slide mechanism 32 includes a Y-axis slide rail 50 and a table 52. The Y-axis slide rail 50 is mounted on a base 29 so as to extend in the Y-axis direction and is movable in the X-axis direction. One end of the Y-axis slide rail 50 is connected to the X-axis slider 36. The table 52 is held on the Y-axis slide rail 50 so as to be slidable in the Y-axis direction. Furthermore, the Y-axis sliding mechanism 32 has an electromagnetic motor 56 (see Figure 2), and the table 52 moves to any position in the Y-axis direction when driven by the electromagnetic motor 56. As a result, the table 52 moves to any position on the base 29 when driven by the X-axis sliding mechanism 30 and the Y-axis sliding mechanism 32.

[0012] The table 52 comprises a base 60, a holding device 62, and a lifting device 64 (see Figure 2). The base 60 is formed in a flat plate shape, and a substrate (not shown) is placed on its upper surface. The holding devices 62 are provided on both sides of the base 60 in the X-axis direction. The substrate is held fixedly in place by the holding devices 62 gripping both edges of the substrate in the X-axis direction. The lifting device 64 is located below the base 60 and raises and lowers the base 60.

[0013] The first molding unit 22 is a unit for molding wiring on a circuit board and has a first printing unit 72 and a firing unit 74. The first printing unit 72 has an inkjet head 76 (see Figure 2), which ejects metallic ink in a linear fashion. The metallic ink consists of nanometer-sized metal particles, such as silver, dispersed in a solvent. The surface of the metal particles is coated with a dispersant to prevent aggregation in the solvent. The inkjet head 76 ejects the metallic ink from multiple nozzles (not shown) using, for example, a piezoelectric method with a piezoelectric element.

[0014] The firing section 74 has an infrared irradiation device 78 (see Figure 2). The infrared irradiation device 78 is a device that irradiates the ejected metal ink with infrared rays. The metal ink irradiated with infrared rays is fired, and wiring is formed. The firing of metal ink is a phenomenon in which, by applying energy, the solvent vaporizes, the protective film of the metal nanoparticles, i.e., the dispersant is decomposed, and the metal nanoparticles come into contact or fuse together, resulting in increased conductivity. As the metal ink is fired, metal wiring is formed.

[0015] Furthermore, the second molding unit 23 is a unit that molds the resin layer of the circuit board and has a second printing unit 84 and a curing unit 86. The second printing unit 84 has an inkjet head 88 (see Figure 2), which ejects ultraviolet-curable resin. The ultraviolet-curable resin is a resin that hardens when exposed to ultraviolet light. The inkjet head 88 may be, for example, a piezo type using a piezoelectric element, or a thermal type that heats the resin to generate bubbles and ejects it from multiple nozzles (not shown).

[0016] The curing unit 86 includes a planarizing device 90 (see Figure 2) and an irradiation device 92 (see Figure 2). The planarizing device 90 flattens the upper surface of the ultraviolet-curable resin ejected by the inkjet head 88. For example, it smooths the surface of the ultraviolet-curable resin and scrapes off excess resin with a roller or blade, thereby making the thickness of the ultraviolet-curable resin uniform. The irradiation device 92 is equipped with a mercury lamp or LED as a light source and irradiates the ejected ultraviolet-curable resin with ultraviolet light. As a result, the ejected ultraviolet-curable resin hardens and a resin layer is formed.

[0017] The third molding unit 24 is a unit that molds the connection between the electrodes and wiring of electronic components on a circuit board, and has a third printing unit 100. The third printing unit 100 has a dispenser 106 (see Figure 2), which dispenses conductive paste. The conductive paste is a resin that hardens when heated at a relatively low temperature, in which micrometer-sized metal particles are dispersed. The metal particles are in flake form, and the viscosity of the conductive paste is relatively high compared to metal ink. The amount of conductive paste dispensed by the dispenser 106 is controlled by the inner diameter of the needle, the pressure during dispensing, and the dispensing time.

[0018] Then, the conductive paste discharged by the dispenser 106 is heated by a heater (not shown) built in the base 60, and in the heated conductive paste, the resin cures. At this time, in the conductive paste, the resin cures and shrinks, and the flaky metal particles dispersed in the resin come into contact. Thereby, the conductive paste exhibits conductivity. Also, the resin of the conductive paste is an organic adhesive and exhibits adhesive force by curing by heating.

[0019] The fourth shaping unit 25 is a unit that shapes a resin for fixing an electronic component to a circuit board and has a fourth printing unit 130. The fourth printing unit 130 has a dispenser 136 (see FIG. 2), and the dispenser 136 discharges a thermosetting resin. The thermosetting resin is a resin that cures by heating. Note that the dispenser 136 is, for example, a piezo method using a piezoelectric element. Then, the thermosetting resin discharged by the dispenser 136 is heated by a heater built in the base 60 and cures.

[0020] The imaging unit 26 is a unit that images a substrate placed on the base 60 of the table 52 and has a camera 120. The camera 120 is disposed above the base 29 in a downward-facing posture and images the upper surface of the substrate placed on the base 60 of the table 52 from above.

[0021] Further, as shown in FIG. 2, the control device 28 includes a controller 110, a plurality of drive circuits 112, an image processing device 114, and a storage device 116. The plurality of drive circuits 112 are connected to the electromagnetic motors 38 and 56, the holding device 62, the elevating device 64, the inkjet head 76, the infrared irradiation device 78, the inkjet head 88, the flattening device 90, the irradiation device 92, and the dispensers 106 and 136. The controller 110 includes a CPU, a ROM, a RAM, etc., and is mainly a computer, and is connected to the plurality of drive circuits 112. Thereby, the operations of the transport device 20, the first shaping unit 22, the second shaping unit 23, the third shaping unit 24, the fourth shaping unit 25, and the imaging unit 26 are controlled by the controller 110. Further, the controller 110 is connected to the image processing device 114. The image processing device 114 processes the imaging data obtained by the camera 120, and the controller 110 acquires various information from the imaging data. Further, the storage device 116 stores various information calculated based on the imaging data.

[0022] In the three-dimensional laminated molding apparatus 10, with the above-described configuration, a resin laminate is formed on the substrate placed on the base 60 of the table 52, and wiring is formed on the upper surface of the resin laminate, thereby forming a circuit board.

[0023] FIG. 3 shows a plan view of a calibration jig 200 used when the three-dimensional laminated molding apparatus 10 performs various calibrations. In the present embodiment, the calibration jig 200 is formed of, for example, a rectangular glass plate of 35 mm × 75 mm and is fixed at a predetermined position on the base 60, at a position that does not interfere with placing the substrate at least.

[0024] The surface of the calibration jig 200 is printed with camera tilt calibration marks 210, camera calibration marks 220, jig tilt calibration marks 230, conductive paste position calibration marks 240, and thermosetting resin position calibration marks 250. The surface of the calibration jig 200 is also provided with three types of first to third calibration areas 260, 270, and 280. The first calibration area 260 consists of an ultraviolet curing resin position calibration mark 260a for aligning the ultraviolet curing resin ejected from the nozzles of the inkjet head 88, and an abnormal nozzle detection area 260b for detecting abnormal nozzles from among the multiple nozzles of the inkjet head 88. The second calibration area 270 consists of a metal ink position calibration mark 270a for aligning the metal ink ejected from the nozzles of the inkjet head 76, and an abnormal nozzle detection area 270b for detecting abnormal nozzles from among the multiple nozzles of the inkjet head 76. The third calibration area 280 is an area on which multiple conductive paste position calibration marks 240 and thermosetting resin position calibration marks 250 are printed.

[0025] Since the calibration jig 200 is fixed as described above, the printing positions (for example, positions indicated by XY coordinates) of the various calibration marks 210, 220, 230, 240, 250, 260a, and 270a are known fixed values ​​and are stored in the storage device 116.

[0026] When adjusting the tilt of camera 120 using the camera tilt calibration mark 210, the controller 110 moves camera 120 to the printed position of the camera tilt measurement mark 210, and then instructs camera 120 to photograph the area on the calibration jig 200 that includes that position. The controller 110 then uses image recognition on the image data acquired from camera 120 to obtain the discrepancy between the position of the camera tilt calibration mark 210 actually captured in the image data and the position where it should be captured, and adjusts the tilt of camera 120 so that the obtained discrepancy is eliminated. This completes the calibration of the camera 120's tilt.

[0027] The camera calibration mark 220 is composed of multiple dots. When the controller 110 performs calibration of the camera 120, it moves the camera 120 to the printed position of the camera calibration mark 220 and then instructs the camera 120 to photograph the camera calibration mark 220. The controller 110 then uses image recognition of the image data acquired from the camera 120 to estimate various parameters of the camera 120, specifically lens distortion parameters, internal parameters, and external parameters, and stores the estimated parameters in the storage device 116. This completes the calibration of the camera 120. When the controller 110 actually uses the image data acquired from the camera 120 to perform various controls, it uses the image data corrected based on the parameters stored in the storage device 116.

[0028] In this embodiment, the calibration jig 200 is fixed in a predetermined position on the base 60. Since the base 60 moves in the X-axis and Y-axis directions together with the table 52, the installation position of the calibration jig 200 may shift from its original installation position due to this movement. The jig tilt calibration mark 230 is used to measure this positional shift. When measuring the positional shift of the calibration jig 200 using the jig tilt calibration mark 230, the controller 110 moves the dispenser 106 to the printing position of the jig tilt calibration mark 230 and then instructs the dispenser 106 to dispense conductive paste toward the jig tilt calibration mark 230. When the dispenser 106 applies conductive paste to the vicinity of the jig tilt calibration mark 230, including the inside of the jig tilt calibration mark 230, the controller 110 instructs the camera 120 to take a picture of the vicinity of the jig tilt calibration mark 230. The controller 110 then performs image recognition on the image data acquired from the camera 120. If the conductive paste is applied to a location where it is intended to be applied, for example, the center of the jig tilt calibration mark 230, and the actual application location is off-center, the controller 110 measures the amount of deviation and stores the measured deviation in the storage device 116. This completes the jig tilt calibration. When the controller 110 performs other calibrations besides jig tilt calibration using the calibration jig 200, it takes the measured deviation into consideration when performing the other calibrations.

[0029] The conductive paste position calibration mark 240 is used to align the application position of the conductive paste dispensed by the dispenser 106. Figure 4(b) is a magnified view of the vicinity of the conductive paste position calibration mark 240 where conductive paste 245 has been applied, and is a magnified view of area B in Figure 3. When aligning the application position of the conductive paste, the controller 110 moves the dispenser 106 to the printing position of the conductive paste position calibration mark 240, and then instructs the dispenser 106 to dispense conductive paste toward the conductive paste position calibration mark 240, in the same manner as when the positional deviation of the calibration jig 200 was measured using the jig tilt calibration mark 230. In response, the dispenser 106 applies conductive paste to the vicinity, including within the conductive paste position calibration mark 240. Figure 4(b) shows an example of this state. The controller 110 then instructs the camera 120 to photograph the vicinity of the conductive paste position calibration mark 240. When imaging data is acquired from the camera 120 in response, the controller 110 measures the amount of displacement of the conductive paste application position by image recognition of the imaging data and stores the measured displacement amount in the storage device 116. This completes the conductive paste position calibration. When the controller 110 dispenses the conductive paste from the dispenser 106, it dispenses the conductive paste after correcting it by the measured displacement amount.

[0030] The thermosetting resin position calibration mark 250 is used to align the application position of the thermosetting resin dispensed by the dispenser 136. The method for aligning the application position of the thermosetting resin using the thermosetting resin position calibration mark 250 is the same as the method for aligning the application position of the conductive paste using the conductive paste position calibration mark 240, so a detailed explanation is omitted.

[0031] The first calibration area 260 is an area for performing calibration on the inkjet head 88. As mentioned above, the inkjet head 88 has multiple nozzles, for example, 128 nozzles. If the position is not aligned with the ultraviolet-curable resin ejected from each nozzle, printing will not be done as intended by the operator, so alignment is performed using the ultraviolet-curable resin position calibration marks 260a. Specifically, the controller 110 moves the inkjet head 88 so that each of its nozzles corresponds to the marks 260a1, 260a2, 260a3, ... (see Figure 4(a)) on the ultraviolet-curable resin position calibration marks 260a. Then, the controller 110 instructs the inkjet head 88 to eject ultraviolet-curable resin from each nozzle.

[0032] Figure 4(a) is an enlarged view of a portion of the first calibration area 260, where UV-curing resin is applied to the abnormal nozzle detection area 260b, and is an enlarged view of area A in Figure 3. In Figure 4(a), the dots "●" indicate the UV-curing resin to which the resin has been applied. When aligning the UV-curing resin, the controller 110 instructs the camera 120 to photograph the first calibration area 260 to which the UV-curing resin has been applied. When imaging data is acquired from the camera 120 in response, the controller 110 measures the amount of displacement of the UV-curing resin application position by performing image recognition on the imaging data. In Figure 4(a), three dots "●" are applied between two marks 260a1, 260a1, which are located vertically in the Y-axis direction. In this example, the Y-axis center positions of the two marks 260a1, 260a1 coincide with the Y-axis center positions of the three dots "●" between them, so the amount of displacement is "0". However, in reality, the Y-axis center positions of the two marks 260a1, 260a1 and the Y-axis center positions of the three dots "●" between them are misaligned. The controller 110 can measure this misalignment and store the measured misalignment in the memory device 116. This completes the UV-curing resin position calibration.

[0033] Furthermore, since the controller 110 can determine whether the corresponding nozzle of the inkjet head 88 is normal or abnormal based on whether or not UV-curable resin is ejected onto the abnormal nozzle detection area 260b, the controller 110 determines whether or not there are dots in the image data acquired from the camera 120 that are not coated with UV-curable resin. When the controller 110 detects the presence of uncoated dots, it determines that the nozzle corresponding to the detection location is abnormal and stores information identifying that nozzle in the storage device 116. This completes the calibration of the inkjet head 88 using the first calibration area 260.

[0034] When the controller 110 ejects UV-curable resin from the inkjet head 88, it corrects for the measured deviation amount before ejecting the UV-curable resin. In addition, the controller 110 prevents UV-curable resin from being ejected from nozzles that it determines to be abnormal, and instead ejects more UV-curable resin from other nozzles to compensate for the reduction, so that the UV-curable resin is uniformly applied to the substrate.

[0035] The second calibration area 270 is an area for performing calibration on the inkjet head 76. The method for calibrating the inkjet head 76 using the second calibration area 270 is the same as the method for calibrating the inkjet head 88 using the first calibration area 260, so a detailed explanation will be omitted.

[0036] The third calibration area 280 is, as described above, an area on which multiple conductive paste position calibration marks 240 and thermosetting resin position calibration marks 250 are printed. When calibration is performed using the conductive paste position calibration marks 240 and thermosetting resin position calibration marks 250, the conductive paste and thermosetting resin are applied near the conductive paste position calibration marks 240 and thermosetting resin position calibration marks 250, so it is not possible to perform the same calibration again using the same conductive paste position calibration marks 240 and thermosetting resin position calibration marks 250. Therefore, when performing the same calibration again, it is necessary to use other conductive paste position calibration marks 240 and thermosetting resin position calibration marks 250. For this reason, multiple conductive paste position calibration marks 240 and thermosetting resin position calibration marks 250 are provided on the calibration jig 200 as a precaution.

[0037] Similarly, the calibration jig 200 is provided with two first calibration areas 260 and two second calibration areas 270, as well as two third calibration areas 280.

[0038] As described above, the 3D additive manufacturing apparatus 10 of this embodiment is equipped with a calibration jig 200 on which multiple types of calibration marks are arranged on the same surface.

[0039] As described above, in the 3D additive manufacturing apparatus 10 of this embodiment, multiple types of calibration can be performed with a single jig by using a calibration jig 200 on which multiple types of calibration marks are arranged on the same surface. Therefore, multiple types of calibration can be performed at a low cost and while saving installation space. In addition, since multiple types of calibration marks are arranged on the same surface, there is no need to adjust the height each time calibration is performed, improving work efficiency. Furthermore, since the calibration jig 200 is installed inside the 3D additive manufacturing apparatus 10, calibration can be performed at the desired time. Incidentally, in this embodiment, the calibration jig 200 is an example of a "plate-shaped jig".

[0040] Furthermore, the 3D additive manufacturing apparatus 10 has an inkjet head 88 that ejects ultraviolet-curable resin, and a second printing unit 84 that prints by depositing ultraviolet-curable resin onto a substrate by ejecting ultraviolet-curable resin from the inkjet head 88. Multiple types of calibration marks include a first alignment mark for aligning the printing position when the second printing unit 84 prints the ultraviolet-curable resin. Incidentally, ultraviolet-curable resin is an example of a "structural material". The inkjet head 88 is an example of a "first ejection head". The second printing unit 84 is an example of a "first printing apparatus". The ultraviolet-curable resin position calibration mark 260a is an example of a "first alignment mark".

[0041] Furthermore, the 3D additive manufacturing apparatus 10 has an inkjet head 76 that ejects metallic ink, and a first printing unit 72 that prints circuit material on a substrate by ejecting metallic ink from the inkjet head 76. Multiple types of calibration marks include a metallic ink position calibration mark 270a for aligning the printing position when the first printing unit 72 prints the circuit material. Incidentally, the inkjet head 76 is an example of a "second ejection head". The first printing unit 72 is an example of a "second printing device". The metallic ink position calibration mark 270a is an example of a "second alignment mark".

[0042] Furthermore, the 3D additive manufacturing apparatus 10 includes a dispenser 106 for supplying conductive paste 245 onto the substrate, and multiple types of calibration marks include conductive paste position calibration marks 240 for aligning the supply position when the dispenser 106 supplies the conductive paste 245 onto the substrate. Incidentally, conductive paste 245 is an example of a "conductive adhesive". Dispenser 106 is an example of a "first supply device". Conductive paste position calibration marks 240 are an example of a "third alignment mark".

[0043] Furthermore, the 3D additive manufacturing apparatus 10 includes a dispenser 136 for supplying thermosetting resin onto a substrate, and the multiple types of calibration marks include thermosetting resin position calibration marks 250 for aligning the supply position when the dispenser 136 supplies the thermosetting resin onto the substrate. Incidentally, thermosetting resin is an example of a "non-conductive adhesive." Dispenser 136 is an example of a "second supply device." Thermosetting resin position calibration marks 250 are an example of a "fourth alignment mark."

[0044] Furthermore, the inkjet head 88 has multiple nozzles, and the calibration jig 200 includes an abnormal nozzle detection area 260b for detecting a nozzle that has stopped ejecting UV-curing resin from among the multiple nozzles of the inkjet head 88. Incidentally, the abnormal nozzle detection area 260b is an example of the "first abnormal nozzle detection area".

[0045] Furthermore, the inkjet head 76 has multiple nozzles, and the calibration jig 200 includes an abnormal nozzle detection area 270b for detecting a nozzle that has stopped ejecting metal ink from among the multiple nozzles of the inkjet head 76. Incidentally, the abnormal nozzle detection area 270b is an example of a "second abnormal nozzle detection area".

[0046] Furthermore, the 3D additive manufacturing apparatus 10 is equipped with a camera 120 that images the substrate, and the multiple types of calibration marks include camera tilt measurement marks for measuring the tilt of the camera 120. Incidentally, the camera tilt calibration mark 210 is an example of a "camera tilt measurement mark".

[0047] Furthermore, the multiple types of calibration marks include camera calibration mark 220. Incidentally, camera calibration mark 220 is an example of a "camera calibration mark."

[0048] Furthermore, the multiple types of calibration marks include a jig tilt calibration mark 230 for measuring the tilt of the calibration jig 200. This allows the calibration jig 200 to be tilted even if it is tilted due to the operation of the 3D additive manufacturing apparatus 10, by correcting the tilt based on the tilt of the calibration jig 200 measured using the jig tilt calibration mark 230. Incidentally, the jig tilt calibration mark 230 is an example of a "jig tilt measurement mark".

[0049] Furthermore, two or more of the multiple types of calibration marks are shared by the same mark. This reduces the number of marks to be placed on the calibration jig 200, thereby allowing the size of the calibration jig 200 to be reduced.

[0050] Furthermore, the calibration jig 200 is made of glass. This makes it less susceptible to expansion or compression due to the effects of heat generated within the 3D additive manufacturing apparatus 10, thereby improving the accuracy of the calibration.

[0051] It should be noted that the present invention is not limited to the embodiments described above, and various modifications are possible without departing from the spirit of the invention.

[0052] (1) When various calibrations are repeatedly performed using the calibration jig 200, there may be no area left on the calibration jig 200 where calibration can be performed, but this case is not mentioned in the above embodiment. In this case, methods such as automatically cleaning the surface of the calibration jig 200, covering the surface of the calibration jig 200 with transparent wrap and manually removing the wrap and covering it with new wrap when there is no area left where calibration can be performed, or automatically winding up the wrap and supplying new wrap can be considered.

[0053] (2) In the above embodiment, the various calibration marks were circular in shape, but they are not limited to circles; they may be rectangular or of other shapes. However, it is preferable to use marks of the same shape for each calibration rather than using marks of different shapes for each calibration. This is because they can be used in multiple calibrations.

[0054] (3) In the above embodiment, the calibration jig 200 was exemplified by having seven types of calibration marks 210, 220, 230, 240, 250, 260a, 270a and two types of abnormal nozzle detection areas 260b, 270b printed on the same plane. However, the number of calibration types may be greater or less than this. Also, the content of the calibration is not limited to what is exemplified. [Explanation of Symbols]

[0055] 10...3D additive manufacturing device, 22...First manufacturing unit, 23...Second manufacturing unit, 24...Third manufacturing unit, 25...Fourth manufacturing unit, 26...Imaging unit, 72...First printing unit, 76,88...Inkjet head, 84...Second printing unit, 106,136...Dispenser, 110...Controller, 114...Image processing unit, 116...Storage device, 120...Camera, 200...Calibration jig, 210...Camera tilt calibration mark, 220...Camera calibration jig Mark for calibration, 230... Mark for jig tilt calibration, 240... Mark for conductive paste position calibration, 250... Mark for thermosetting resin calibration, 260... First calibration area, 260a... Mark for UV curing resin position calibration, 260b, 270b... Area for abnormal nozzle detection, 270... Second calibration area, 270a... Mark for metal ink position calibration, 280... Third calibration area.

Claims

1. A plate-shaped jig with multiple types of calibration marks arranged on the same surface, A first printing apparatus having a first discharge head for discharging structural material, and printing by discharging the structural material from the first discharge head to laminate the structural material onto a substrate, Equipped with, The aforementioned multiple types of calibration marks include a first alignment mark for aligning the printing position when the first printing device prints the structural material, in a three-dimensional additive manufacturing apparatus.

2. A second printing apparatus having a second ejection head for ejecting metallic ink, which prints circuit material onto a substrate by ejecting the metallic ink from the second ejection head. Equipped with, The aforementioned multiple types of calibration marks include a second alignment mark for aligning the printing position when the second printing device prints the circuit material. The three-dimensional additive manufacturing apparatus according to claim 1.

3. A first supply device for supplying a first conductive adhesive onto a substrate. Equipped with, The aforementioned multiple types of calibration marks include a third alignment mark for aligning the supply position when the first supply device supplies the first conductive adhesive onto the substrate. The three-dimensional additive manufacturing apparatus according to claim 1 or 2.

4. A second supply device for supplying non-conductive adhesive onto a substrate. Equipped with, The aforementioned multiple types of calibration marks include a fourth alignment mark for aligning the supply position when the second supply device supplies the non-conductive adhesive onto the substrate. A three-dimensional additive manufacturing apparatus according to any one of claims 1 to 3.

5. The first discharge head has a plurality of nozzles, The plate-shaped jig includes a first abnormal nozzle detection area for detecting a nozzle that has stopped discharging the structural material from among the plurality of nozzles of the first discharge head. A three-dimensional additive manufacturing apparatus according to any one of claims 1 to 4.

6. The second discharge head has a plurality of nozzles, The plate-shaped jig includes a second abnormal nozzle detection area for detecting a nozzle among the plurality of nozzles of the second discharge head that has stopped dispensing the metal ink. The three-dimensional additive manufacturing apparatus according to claim 2.

7. Camera that takes images on the aforementioned substrate Equipped with, The aforementioned multiple types of calibration marks include camera tilt measurement marks for measuring the tilt of the camera. A three-dimensional additive manufacturing apparatus according to any one of claims 1 to 6.

8. The aforementioned multiple types of calibration marks include the calibration marks of the camera. The three-dimensional additive manufacturing apparatus according to claim 7.

9. The aforementioned multiple types of calibration marks include marks for measuring the inclination of the plate-shaped jig, A three-dimensional additive manufacturing apparatus according to any one of claims 1 to 8.

10. Of the aforementioned multiple types of calibration marks, two or more types of calibration marks are shared by the same mark. The three-dimensional additive manufacturing apparatus according to claim 1.

11. The aforementioned plate-shaped jig is made of glass. A three-dimensional additive manufacturing apparatus according to any one of claims 1 to 10.

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