3D printing device and process system

Abstract

The present invention aims to provide a 3D printing device capable of extrusion-type 3D printing that is not bound by layer-by-layer printing methods, thereby maximizing the usability of an extrusion-type 3D printer and ultimately proposing a highly productive 3D printing process system utilizing it. One embodiment of the present invention may provide a 3D printing device comprising: a base to solve the above-described problem; a 6-axis arm having one end supported by the base and the other end having a head; and a discharge unit fixed to the head of the 6-axis arm. The 3D printer may include: a storage unit for storing a printing material; a discharge unit for receiving and discharging the material stored in the storage unit; and a pressure providing unit for providing pressure to enable the discharge unit to discharge the material.

Description

Technology Field

[0001] The present invention is an invention for providing an extrusion-type 3D printing device and a 3D printing system using the same. Background Technology

[0002] Extrusion 3D printers are one of the most commonly used methods among 3D printing technologies and are also referred to as FDM (Fused Deposition Modeling) or FFF (Fused Filament Fabrication). Printing using this method obtains a cured result by melting various materials, stacking them layer by layer, and cooling them.

[0003] Since extrusion 3D printers print layer by layer, the control commands for the printing operation are also composed of commands for each layer. Therefore, if the resolution distinguishing each layer is low, there are limitations in expressing irregular curves, and since the first layer to start printing is also flat, a printing bed (hereinafter referred to as 'bed') is absolutely necessary to start printing.

[0004] Meanwhile, although one of the widely known advantages of 3D printing techniques is that even parts with complex shapes can be produced as a single unit, some topological problems that may be observed during assembly of parts may not be resolved by these advantages of 3D printing techniques.

[0005] For example, imagine a first and second link that are connected to each other and form a single chain. If the first link is produced, it is impossible to produce the second link, which must be connected to it, as a single unit. Although the second link can be produced as a single unit through 3D printing, it is intuitively clear that it is impossible for the second link produced in this way to be connected to the first link. Consequently, a producer who was considering using a 3D printer for the production of the second link, due to its complex shape, would find it difficult to adopt this method.

[0006] Even in the case of extrusion 3D printers that print layer by layer, a bed is required to print the starting layer of the printing job. Considering this, it is even impossible to solve the problem faced by the producer (the problem of producing two interlocked ring shapes with curved surfaces rather than flat surfaces) using an extrusion 3D printer.

[0007] Extrusion-type 3D printers using a layer-by-layer printing method have limitations on the shapes that can be produced, not only due to the aforementioned problems but also because the starting layer of production must be a flat surface. Furthermore, when the sub-commands constituting the printing command are divided by layer, it is difficult to write the command for printing each layer for irregular and complex shapes all at once. This problem is exacerbated if multiple materials must be used to form a pattern within the resulting product. The problem to be solved

[0008] The present invention aims to provide a 3D printing device capable of extrusion-type 3D printing that is not bound by layer-by-layer printing methods, thereby maximizing the usability of extrusion-type 3D printers and ultimately proposing a 3D printing process system with high productivity. means of solving the problem

[0009] One embodiment of the present invention may provide a 3D printing device that solves the above-described problem by comprising: a base; a 6-axis arm having one end supported by the base and the other end having a head; a discharge unit fixed to the head of the 6-axis arm; and a long-legged carriage for moving the base; wherein the 3D printer comprises: a storage unit for storing printing material; a discharge unit that receives and discharges the material stored in the storage unit; and a pressure providing unit that provides pressure to enable the discharge unit to discharge the material; wherein the base is movably coupled along the upper surface of the carriage, and the storage unit is provided on the base.

[0010] The above storage unit is configured to store at least two different materials separately, and the above discharge unit may be configured to discharge at least two different materials stored in the storage unit separately, either simultaneously or separately. In this case, the discharge unit may be equipped with a plurality of nozzles corresponding to each of the at least two different materials stored in the storage unit, and may discharge the corresponding materials through each nozzle.

[0011] Meanwhile, the above 3D printer further includes a transport unit for connecting the storage unit and the discharge unit to transport material stored in the storage unit to the discharge unit; and the storage unit may be provided on the base.

[0012] Additionally, the carriage may include a rail on its upper surface along which the base can move; and the base may include a wheel on its lower surface that supports the base on the upper surface of the rail.

[0013] Meanwhile, according to another embodiment of the present invention, a 3D printing device may be provided comprising: a first base; a first 6-axis arm having one end supported by the first base and the other end having a first head; a discharge unit fixed to the first head; a second base; a second 6-axis arm having one end supported by the second base and the other end having a second head; a processing device fixed to the second head for processing a result printed by the 3D printer (hereinafter referred to as 'printing result'); and a long-length carriage for moving the first base and the second base; wherein the 3D printer comprises: a storage unit for storing printing material; a discharge unit that receives and discharges the material stored in the storage unit; and a pressure providing unit that provides pressure to enable the discharge unit to discharge the material; wherein the first base and the second base are movably coupled along the upper surface of the carriage, and the storage unit is provided on the first base.

[0014] The processing device may include a cutting mechanism capable of cutting the printing result. At this time, the 3D printing device further includes a rotatable bed, and the 3D printer prints the printing result on the upper surface of the bed, and by rotating the bed, the printing result may be positioned at an angle necessary for the processing device to process the printing result.

[0015] Meanwhile, according to another embodiment of the present invention, a first 3D printing device that sequentially produces a first result by performing a printing operation on the surface of a plurality of primary parts arranged in a front-rear direction in a first region; a hanger arm device that sequentially moves the first result printed in the first region to a second region; and a second 3D printing device that sequentially produces a second result by performing a direct printing operation on the surface of the first result moved to the second region; wherein the first 3D printing device and the second 3D printing device each include: a base; a 6-axis arm supported at one end by the base and having a head at the other end; a 3D printer having an ejection unit fixed to the head of the 6-axis arm; and a carriage having an elongated shape for moving the base; and each of the 3D printers includes a storage unit for storing printing material; and the ejection unit that receives and ejects the material stored in the storage unit. A pressure providing unit that provides pressure to enable the discharge unit to discharge the material; and a transport unit that connects the storage unit and the discharge unit to transport the material stored in the storage unit to the discharge unit; wherein each of the storage units is provided on each of the bases, and each of the bases is movably coupled along the upper surface of each of the carriages, and the hanger arm device includes a carriage; and a plurality of hangers coupled with a 6-axis arm movable on the upper surface of the carriage; wherein the 3D printer of the first 3D printing device moves from the front side to the rear side and performs a printing operation on the surface of the primary parts lined up in the first region to sequentially produce the primary results, and the hanger moves from the front side to the rear side and sequentially moves the primary results lined up in the first region to the second region.The 3D printer of the second 3D printing device moves from the front to the rear and performs a printing operation on the surface of the first product located in the second region to sequentially produce the second product, wherein the first 3D printing device is equipped with a first sensor that recognizes the first part, and when the first part is recognized by the first sensor, the 3D printer of the first 3D printing device moves to the location of the recognized first part and performs a printing operation, the hanger arm device is equipped with a second sensor that recognizes the first product in the first region, and when the first product is recognized by the second sensor, the hanger moves to the location of the recognized first product and moves the first product to the second region, and the second 3D printing device is equipped with a third sensor that recognizes the first product in the second region, and when the first product in the second region is recognized by the third sensor, the second 3D printing device A 3D printing process system may be provided in which the 3D printer moves to the location of the recognized first result and produces the second result based on the first result, and while the hanger arm device moves the first result, the 3D printer of the first 3D printing device continues to perform printing operations on the surface of the first parts lined up in the first area, and while the second 3D printing device produces the second result, the first 3D printing device and the hanger arm device continue to perform their respective operations, and when the production process is completed, the final result is arranged in a front-back direction in the second area. Effects of the invention

[0016] The present invention has the following effects.

[0017] First, by equipping a 3D printer nozzle on a head of a 6-axis arm with high degrees of freedom, it becomes possible to inject printing material at a wider variety of positions and angles. Therefore, since layer-by-layer printing is not strictly necessary, it becomes possible to print results directly onto primary parts with complex shapes. Consequently, even when producing results with shapes where multiple parts are combined, the output can be produced without being constrained by the topological relationships between the parts.

[0018] Second, printing with heterogeneous materials becomes possible, enabling the production of a wider variety of results.

[0019] Third, since the printed result can assume various positions by rotating the bed, processing of the processing device is easy.

[0020] Fourth, by operating a printing process that links multiple 3D printing devices, complete automation of the production process becomes possible.

[0021] In addition to these effects, the present invention may additionally have various effects that can be derived from the following description. Brief explanation of the drawing

[0022] FIG. 1 illustrates a 3D printing device according to one embodiment of the present invention. FIGS. 2 and 3 conceptually illustrate the operation of a 3D printing device according to embodiments of the present invention. FIG. 4 conceptually illustrates the operation of a 3D printing process system according to one embodiment of the present invention. Specific details for implementing the invention

[0023] Hereinafter, an embodiment of the present invention will be described in detail with reference to the attached drawings. In describing the present invention, specific descriptions of related known functions or configurations will be omitted if it is determined that such detailed descriptions may unnecessarily obscure the essence of the present invention. Furthermore, the terms described below are defined considering their functions in the present invention, and these may vary depending on the intentions or conventions of the user or operator. Therefore, their definitions should be based on the content throughout this specification.

[0025] <Description of 3D Printing Devices>

[0026] FIGS. 1 and FIGS. 2 illustrate a 3D printing device (100) according to the present invention.

[0027] Referring to FIG. 1, the 3D printing device (100) according to the present invention may include a base (110), a 6-axis arm (120), and a 3D printer (130).

[0028] One end of the 6-axis arm (120), which will be described later, can be fixed to the upper surface of the base (110) or connected so as to be rotatable along one axis. That is, the base (110) serves as a lower support for the 3D printing device (100) to stand upright normally.

[0029] The 6-axis arm (120) can be supported on the base (110) at one end and provided with a head (120h) at the other end. Since the 6-axis arm (120) has six degrees of freedom, the discharge part (132) of the 3D printer (130) provided on the head (120h) can discharge printing material at a wider variety of positions and angles. Therefore, unlike conventional extrusion-type 3D printers (130), it is not limited to production methods where a flat bed is used as a starting layer and stacked layer by layer, and it becomes easy to directly print a desired shape on the irregularly shaped surface of a part.

[0030] A person skilled in the art can easily adopt various 6-axis arms (120) already disclosed for the implementation of the present invention, so a detailed description is omitted.

[0031] Referring to FIG. 1, the 3D printer (130) includes a storage unit (131), an ejection unit (132), a transport unit (134), and a pressure providing unit (133).

[0032] The storage unit (131) stores printing material (hereinafter referred to as "material"). Since the extrusion type 3D printer (130) often uses plastic resin material, the storage unit (131) can store plastic resin. However, it is not necessarily limited to this, and any material that can be used in the extrusion type 3D printer (130) is possible. In addition, the storage unit (131) may be equipped with a heating means (not shown) for melting the material depending on the type of material, or a pump (not shown) for supplying the material to the discharge unit (132) through the transport unit (134) according to the embodiment to be described later.

[0033] As referenced in FIG. 1, in some cases, the storage unit (131) may be provided with a storage room (131r) separated by a partition to store at least two or more materials simultaneously. Thus, the 3D printer (130) can perform printing operations simultaneously or separately using different materials.

[0034] As referenced in FIG. 1, the storage unit (131) may be provided in the base (110) depending on the case. Since the components of the 3D printer (130) do not necessarily have to be joined at close distances, it is possible for the material stored in the storage unit (131) provided in the base (110) to be transported to the discharge unit (132) to be described later through the transport unit (134) to be described later. At this time, the transport unit (134) is provided to connect the storage unit (131) and the discharge unit (132) to transport the material stored in the storage unit (131) to the discharge unit (132), and may be implemented as a flexible hose or tube through which the material can be moved. By providing the storage unit (131) in the base (110) rather than the head (120h), it becomes possible to stably store material even with a heavy storage unit (131), and ultimately, it becomes possible to implement a storage unit (131) with a larger capacity. This not only increases the production capacity of the 3D printing device (100) but also allows for the storage of a wider variety of materials, thereby increasing the diversity of the printed results.

[0035] The discharge unit (132) is fixed to the head (120h) of the 6-axis arm (120) and is provided to receive and discharge material stored in the storage unit (131). That is, the position and orientation of the discharge unit (132) are determined according to the degrees of freedom of the 6-axis arm (120). The 6 degrees of freedom of the 6-axis arm (120) allow the discharge unit (132) to perform printing in a wider variety of positions and orientations. Of course, the discharge unit (132) may include a heating means (not shown) for melting the material that may be required during the process of discharging the material.

[0036] The discharge unit (132) may be configured to discharge at least two different materials stored in the storage unit (131) separately, either simultaneously or separately. More specifically, as referenced in FIG. 1, the discharge unit (132) may be equipped with a plurality of nozzles (132n) corresponding to at least two different materials stored in the storage unit (131), and may discharge the corresponding materials through each nozzle (132n). In this case, since one storage room (131r) handling one material also corresponds to one nozzle (132n) provided in the discharge unit (132), each material is stored in the storage unit (131) and does not mix with other materials until it is discharged through the discharge unit (132). In addition, since each nozzle (132n) corresponds to a single material, the second material is discharged through the nozzle (132n) after the first material has been discharged through the nozzle (132n), thereby preventing mixing with the first material remaining in the nozzle (132n) when the second material is discharged. This contributes to improving the quality of the resulting product.

[0037] The transport unit (134) is provided to connect the storage unit (131) and the discharge unit (132) to transport materials stored in the storage unit (131) to the discharge unit (132). In particular, as referenced in FIG. 1, when the storage unit (131) is provided on the base (110), the discharge unit (132) is provided on the head (120h) of the 6-axis arm (120). Therefore, the transport unit (134) can be implemented in the form of a hose or pipe made of a flexible material that can connect the storage unit (131) and the discharge unit (132) while responding to the movement of the 6-axis arm (120). As described above, when two or more different materials are separated and stored in each storage chamber (131r) in the storage unit (131) and the discharge unit (132) is provided with nozzles (132n) corresponding to two or more different materials, it is also possible to implement the transport unit (134) by providing two or more hoses or pipes corresponding to different materials to seal and connect each storage chamber (131r) and each nozzle (132n) so that the different materials do not mix.

[0038] Referring to FIG. 1, the pressure providing unit (133) is provided to provide pressure that enables the discharge unit (132) to discharge material. Accordingly, the pressure providing unit (133) may further include a motor (not shown) that generates power, a piston (not shown) that receives power from the motor (not shown) and applies pressure, and a cylinder (not shown). A person skilled in the art will be able to easily adopt various types of pressure providing units (133) that provide pressure to discharge material to the discharge unit (132) in addition to this method.

[0039] As referenced in FIG. 1, a 3D printing device (100) according to one embodiment of the present invention may further include a carriage (140).

[0040] The carriage (140) is provided in a long shape for moving the base (110). The base (110) is coupled so as to be movable along the upper surface of the carriage (140). Specifically, the carriage (140) includes a rail (140r) on its upper surface along which the base (110) can move, and the base (110) may include a wheel (not shown) on its lower surface that supports the base (110) on the upper surface of the rail (140r). The wheel (not shown) provided on the base (110) engages with the rail (140r) on the upper surface of the carriage (140) and is coupled so as to be movable in the forward and backward directions, thereby allowing the base (110) to be fixed to the upper surface of the carriage (140) while still being movable in the forward and backward directions.

[0041] FIG. 2 is a plan view briefly illustrating the operation of a 3D printing device (100) according to one embodiment of the present invention.

[0042] According to FIG. 2, the 3D printing device (100) according to the present embodiment moves from the front side to the rear side as referenced and performs a printing operation directly on the surface of a primary part (p1). Accordingly, a printing result (p2) is placed on the left-front side of the base (110) of the 3D printing device (100), and a primary part (p1) waiting for the printing operation is placed on the left-rear side. Of course, this direction is not limited to the described content. Although not illustrated, it would be possible to increase the efficiency of the operation by having the primary part (p1) waiting on the right side of the carriage (140) of the 3D printing device (100). Since the 3D printer (100) according to this embodiment can perform printing operations while moving along the carriage (140), the operator can perform printing on multiple primary parts (p1) simply by arranging the primary parts (p1) that need to be printed on the left and right sides of the carriage (140) and then operating the 3D printing device (100). Of course, even if a bed (not shown) other than the primary parts (p1) is arranged along the path of the carriage (140), it is entirely possible for the 3D printer (130), which moves along the path provided by the carriage (140), to sequentially perform printing operations and produce multiple printed results (p2).

[0043] FIG. 3 briefly illustrates the operation of a 3D printing device (200) according to another embodiment of the present invention.

[0044] Referring to FIG. 3, in addition to the preceding embodiment, a 3D printing device (200) according to a new embodiment may be provided, which further includes another base (250), a 6-axis arm (260), and a processing device (270) provided on the head (not shown) of the other 6-axis arm (260). That is, the present embodiment may include a 3D printer (230) and a processing device (270) having two bases (210, 250) and 6-axis arms (220, 260) and an ejection unit (not shown) connected to each head (not shown) of each 6-axis arm (220, 260), and finally a carriage (240) for moving each base (210, 250). Hereinafter, the base (210) connected to the 3D printer (230) of the preceding embodiment is referred to as the first base (210), the 6-axis arm (220) connected to the 3D printer (230) of the preceding embodiment is referred to as the first 6-axis arm (220), and the head (not shown) of the first 6-axis arm (220) is referred to as the first head (not shown). Additionally, the base (250) connected to the processing device (270) is referred to as the second base (250), the 6-axis arm (260) connected to the second base (250) is referred to as the second 6-axis arm (260), and the head (not shown) of the second 6-axis arm (260) is referred to as the second head (not shown).

[0045] The first base (210) and the second base (250) are each connected to one end of the first six-axis arm (220) and the second six-axis arm (260), respectively, and are provided to support each six-axis arm (220, 260) at the bottom of each six-axis arm (220, 260). The description regarding this is replaced by the description regarding the preceding base (110).

[0046] The first six-axis arm (220) is supported on the first base (210) at one end and has a first head (not shown) at the other end. The description regarding this is replaced by the description regarding the six-axis arm (120) of the preceding embodiment.

[0047] The 3D printer (230) is equipped with an ejection part (not shown) fixed to a first head (not shown). The description regarding this is replaced by the description regarding the 3D printer (130) of the preceding embodiment.

[0048] In this embodiment, the carriage (240) is also provided in an elongated shape to move the first base (210) and the second base (250). The first base (210) and the second base (250) are movably coupled to the upper surface of the carriage (240). The description regarding this is also replaced by the description regarding the base and carriage (140) mentioned above.

[0049] A processing device (270) is fixed to a second head (not shown) and is provided to process a result (p2, hereinafter referred to as 'printing result (p2)') printed by a 3D printer (230). The processing device (270) may be implemented to include a cutting mechanism (not shown) capable of cutting the printing result (p2). The processing device (270) produces a final result (p2') by performing a finishing step of the 3D printing production process, such as making the surface of the printing result (p2) smooth through milling. As such, since the processing device (270) is equipped on the head (not shown) of a second 6-axis arm (260) having a high degree of freedom to perform processing, it becomes possible to perform work at a wider variety of angles and positions when processing the printing result (p2).

[0050] This embodiment may additionally include a bed (280) depending on the case. The bed (280) is rotatably provided. Therefore, when a printing result (p2) is located on the upper surface of the bed (280), the processing device (270) can position the printing result (p2) at an angle necessary to process the printing result (p2) by rotating the bed (280). Depending on the case, the 3D printer (230) may perform a printing operation starting from the upper surface of the bed (280), or, as referenced in FIG. 3, perform a printing operation starting from the surface of a primary part (p1) located on the upper surface of the bed (280), and when the printing result (p2) is printed, the processing device (270) may process the printing result (p2) located on the upper surface of the bed (280). In this case, the bed (280) can be rotated at an appropriate angle to assist the printing operation of the 3D printer (230), so that the printing operation can be performed at various positions and angles.

[0051] As referenced in FIG. 3, according to this embodiment, the 3D printer (230) and the processing device (270) move from the front side to the rear side to perform operations. When the 3D printer (230) performs printing on the primary part (p1) or bed (280) that is laid out along the path of the carriage (240) to produce a printed result (p2), the 3D printer (230) moves along the carriage (240) to the right of the next primary part (p1) or bed (280) to perform the operation of printing another printed result (p2), and during this time, the processing device (270) performs a processing operation on the already produced printed result (p2) to produce a final result (p2'). In this way, as each printing operation and processing operation are performed sequentially and simultaneously along the path of the carriage (240), the efficiency of the production process is increased.

[0053] <Description of 3D Printing Process System>

[0054] FIG. 4 conceptually illustrates a 3D printing process system (300) according to one embodiment of the present invention performing a production operation.

[0055] According to the present invention, a 3D printing process system (300) using the above-described 3D printing device (100, 200) may be provided.

[0056] Referring to FIG. 4, the 3D printing process system (300) includes a first 3D printing device (310), a hanger arm device (320), and a second 3D printing device (330).

[0057] The first 3D printing device (310) prints the first result (p3) in the first region (R1). The first region (R1) is a place where the first 3D printing device (310) can print the first result (p3). Therefore, it can be the bed (280) and the location where the base primary part (p1) is initially placed. Since the first 3D printing device (310) is one of the various embodiments of the 3D printing device (100, 200) described above, a detailed description is omitted.

[0058] The hanger arm device (320) moves the first result (p3) printed in the first area (R1) to the second area (R2). The hanger arm device (320) can also be implemented in the form of a hanger (320H) combined with a carriage (not shown) and a 6-axis arm movable on the upper surface thereof, but is not necessarily limited thereto. It is also possible to employ multiple hangers (not shown) considering the working radius of the hanger (320H) and the range of the first area (R1) and the second area (R2) to be described later.

[0059] The second 3D printing device (330) prints a second result (p3') by directly printing on the first result (p3) that has been moved to the second area (R2). The second area (R2) is a place where the second 3D printing device (330) can perform a printing operation to print the second result (p3'). Since the second 3D printing device (330) is one of the various embodiments of the 3D printing device (100, 200) described above, a detailed description is omitted.

[0060] The operation of the present embodiment is described with reference to FIG. 4. The first and second 3D printing devices (310, 320) included in the embodiment of the 3D printing process system (300) according to FIG. 4 are equipped with 3D printers (310P, 330P) each having a 6-axis arm movable on the upper surface of each carriage (not shown). When preparation for the production process is completed, primary parts (p1) are arranged in the front-rear direction in the first area (R1). When the production process begins, the 3D printer (310P) of the first 3D printing device (310) moves from the front side to the rear side and performs a printing operation on the surface of the primary parts (p1) arranged in the first area (R1) to sequentially produce primary results (p3). The hanger (310H) of the hanger arm device (320) moves from the front side to the rear side and sequentially moves the first product (p3) that is positioned in the first area (R1) to the second area (R2). Of course, while the hanger arm device (320) moves the first product (p3), the 3D printer (310P) of the first 3D printing device (310) continues to perform printing operations based on the first parts (p1) that are still positioned in the first area (R1). When the first product (p3) is positioned in the second area (R2) by the hanger arm device (320), the 3D printer (330P) of the second 3D printing device (330) moves from the front side to the rear side and performs printing operations on the surface of the first product (p3) to sequentially produce the second product (p3'). Of course, while the second 3D printing device (330) is producing the second product (p3'), the first 3D printing device (310) and the hanger arm device (320) also continue to perform each of the operations described above. As a result, when the production process is finished, the second product (p3'), which is the final product, is arranged in a front-to-back direction in the second region (R2).

[0061] According to the operation of this embodiment, the hanger arm device (320) can supply the first result (p3) to the second printing device in real time even while the first 3D printing device (310) is operating, so that each printing operation of the first 3D printing device (310) and the second 3D printing device (330) can be performed continuously at the same time.

[0062] According to the 3D printing process system (300) of the present embodiment, when it is necessary to perform multiple stages of 3D printing work with various materials, even when all materials cannot be accommodated in a single storage unit due to the diversity of materials, or when there are limitations in designing the movement path of the carriage when considering the space layout of the factory, and thus all printing processes cannot be performed by a single 3D printing device, it is possible to automate the production process using multiple 3D printing devices.

[0063] Meanwhile, the first 3D printing device (310) may be equipped with a sensor (not shown) for recognizing a primary part (p1) that serves as the basis for performing a printing operation, and the hanger arm device (320) may be equipped with a sensor (not shown) for recognizing a primary result (p3) in the first area (R1) to move the primary result (p3) to the second area (R2), and the second 3D printing device (330) may be equipped with a sensor (not shown) for recognizing a primary result (p3) that serves as the basis for performing a printing operation. In this case, when the first 3D printing device (310) recognizes the first part (p1), it moves the 3D printer (310P) to the corresponding location to perform a printing operation and produce a first result (p3); when the hanger arm device (320) recognizes the first result (p3) in the first area (R1), it moves the hanger (H) to the corresponding location to move the first result (p3) to the second area (R2); and when the second 3D printing device (330) recognizes the first result (p3) in the second area (R2), it moves the 3D printer (330P) to the corresponding location to produce a second result (p3') based on the first result (p3). Therefore, the operator can continuously produce the second product (p3') as long as they maintain the state where the first component (p1) is filled in the first area (R1) and the state where there is a space remaining in the second area (R2) to supply the first product (p3). As a result, complete automation of all processes is possible, except for the supply of the first component (p1) and the retrieval of the second product (p3').

[0065] The present invention can increase the efficiency of the 3D printing process through various embodiments. However, it should also be noted that all the embodiments presented can effectively solve the topological problems encountered when producing a combined product of multiple parts introduced in the “Background Technology” section by providing a 3D printing device capable of printing directly onto parts.

[0067] The present invention has been described above focusing on its preferred embodiments. Those skilled in the art will understand that the present invention may be implemented in modified forms without departing from the essential characteristics of the invention. Accordingly, the scope of the present invention should not be limited to the aforementioned embodiments but should be interpreted to include various embodiments within the scope equivalent to those described in the claims. Explanation of the symbols

[0068] 100 : 3D printing device 110 : Bass 120: 6-axis arm 120h : Head 130 : 3D printer 131 : Storage section 131r : Storage room 132 : Discharge section 132n: Nozzle 133 : Pressure providing part 134 : Transportation Department 140 : Carriage 140r : Rail 200 : 3D printing device 210: 1st Base 220 : 1st 6th axis arm 230 : 3D printer 240 : Carriage 250 : 2nd Base 260 : 2nd 6th axis arm 270 : Processing device 280 : Bed 300 : 3D Printing Process System 310 : 1st 3D printing device 320: Hanger arm device 330 : Second 3D printing device R1: Area 1 R2: Area 2 p1 : Primary part p2 : Printed result p2' : Final result p3 : 1st result p3' : 2nd result

Claims

Claim 1 delete Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete Claim 6 delete Claim 7 delete Claim 8 delete Claim 9 delete Claim 10 A first 3D printing device that sequentially produces a first result by performing a printing operation on the surface of a plurality of primary parts arranged in a front-rear direction in a first region; a hanger arm device that sequentially moves the first result printed in the first region to a second region; and a second 3D printing device that sequentially produces a second result by performing a direct printing operation on the surface of the first result moved to the second region; wherein the first 3D printing device and the second 3D printing device each include: a base; a 6-axis arm supported at one end by the base and having a head at the other end; a 3D printer having an ejection unit fixed to the head of the 6-axis arm; and a long-legged carriage for moving the base; and each of the 3D printers includes: a storage unit for storing printing material; the ejection unit that receives and ejects the material stored in the storage unit; and a pressure providing unit that provides pressure to enable the ejection unit to eject the material. and a transport unit for connecting the storage unit and the discharge unit to transport the material stored in the storage unit to the discharge unit; wherein each of the storage units is provided on each of the bases, and each of the bases is movably coupled along the upper surface of each of the carriages, and the hanger arm device comprises a carriage; and a plurality of hangers coupled with a 6-axis arm movable on the upper surface of the carriage;The method comprises: the 3D printer of the first 3D printing device moves from the front to the rear and performs a printing operation on the surface of the primary parts lined up in the first region to sequentially produce the primary results; the hanger moves from the front to the rear and sequentially moves the primary results lined up in the first region to the second region; the 3D printer of the second 3D printing device moves from the front to the rear and performs a printing operation on the surface of the primary results located in the second region to sequentially produce the secondary results; wherein the first 3D printing device is equipped with a first sensor that recognizes the primary parts, and when the primary parts are recognized by the first sensor, the 3D printer of the first 3D printing device moves to the location of the recognized primary parts and performs a printing operation; and the hanger arm device is equipped with a second sensor that recognizes the primary results in the first region. When the first result is detected by the second sensor, the hanger moves to the location of the detected first result and moves the first result to the second region; the second 3D printing device is equipped with a third sensor that detects the first result in the second region, and when the first result in the second region is detected by the third sensor, the 3D printer of the second 3D printing device moves to the location of the detected first result and produces the second result based on the first result; while the hanger arm device moves the first result, the 3D printer of the first 3D printing device continues to perform a printing operation on the surface of the first parts lined up in the first region; and while the second 3D printing device produces the second result, the first 3D printing device and the hanger arm device continue to perform their respective operations, and when the production process is completed, the final result is lined up in the front-rear direction in the second region Deployed 3D printing process system.;

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