CN217729683U - On-spot 3D printer of large scale structure - Google Patents

Abstract

The utility model relates to a 3D prints technical field, discloses an on-spot 3D printer of large scale structure, and it includes an open framework that all can be adjusted on three directions of length width height, and the fixed at least three supporting legs of group that are provided with of base bottom surface circumference array, the fixed three dead lever that is provided with in top of base, it is three the dead lever is the circumference array setting, and is three the common fixedly connected with mounting panel in dead lever top is three be provided with printing mechanism on the dead lever jointly, it is three all rotate on the dead lever and cup jointed the rotor plate, be provided with on the base and be used for carrying out the positioning mechanism fixed to the rotor plate. The utility model discloses a setting is the open framework with adjustable on the high three directions of length and width all, and realizes the scale extension of shaping structure in the three ascending side of XYZ, can print in succession at the job site, can satisfy the printing demand of large-scale structure such as cultural intention, architectural design, saves the printing time, improves and prints efficiency.

Description

On-spot 3D printer of large scale structure

Technical Field

The utility model relates to a 3D prints technical field, especially relates to an on-spot 3D printer of large scale structure spare.

Background

A3D printer is also called a three-dimensional printer, and is a process for rapid prototyping. The three-dimensional large-scale structural part is manufactured in a layer-by-layer stacking mode, the operation process of the three-dimensional large-scale structural part is similar to that of a traditional printer, only the traditional printer prints ink on paper to form a two-dimensional plane drawing, and the 3D printer realizes layer-by-layer stacking and overlapping of materials such as liquid photosensitive resin materials, molten plastic wires and gypsum powder in a binder spraying or extruding mode to form a three-dimensional entity. At present, the 3D printing technology is widely applied in the industrial field.

However, the existing 3D printer has the following disadvantages when in use: firstly, because the structure and the volume of the printer are fixed, the dimension of the printed and molded structural part is small, generally within 1000x600x500mm, and the molding dimension cannot be expanded in any direction of length, width and height or in three directions according to actual needs, the printing requirements of large-scale components such as large-scale equipment, architectural design, large-scale creative works, large-scale sculpture exhibition works and the like cannot be met; secondly, after the printing of one structural part is finished by the existing 3D printer, the printing of the next structural part can be started only after the structural part is completely taken down, so that the time waste is caused, and the production efficiency is not high; thirdly, the existing 3D printer lacks a quick cooling device for the printed structural member, and needs to be cooled by an external environment (such as air conditioning refrigeration), which easily causes a local deformation phenomenon of the large-scale structural member due to uneven cooling speed in the printing process, and causes that the strength and precision of the printed and molded structural member cannot meet the requirements; fourth, the existing printers have high requirements for work sites, generally, structural members are printed in fixed workshops (in indoor environments) and then transported to construction sites, and for structural members with large-scale and irregular structures, on one hand, the transportation difficulty is high, and on the other hand, the structural members are easily deformed or damaged in the transportation process (particularly, the breakage rate of elongated structural members such as decorative strips is high).

Therefore, the utility model relates to a new on-spot 3D printer of yardstick structure solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a large-scale structure scene 3D printer improves in coordination through many-sided structural design, adopts the open architecture that the XYZ direction all can be expanded and adjusted, can print at the job site, and the structure of printing need not the transportation to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a large-scale structural member on-site 3D printer comprises an open framework which is adjustable in three directions of length, width and height, and comprises a base, wherein at least three groups of supporting legs are fixedly arranged on the bottom surface of the base in a circumferential array mode, three fixing rods are fixedly arranged on the top of the base and arranged in a circumferential array mode, a mounting plate is fixedly connected to the tops of the three fixing rods, a printing mechanism is commonly arranged on the three fixing rods, rotating plates are rotatably sleeved on the three fixing rods, the three rotating plates are arranged in a layered mode, bearing plates are fixedly arranged at one ends, far away from the fixing rods, of the rotating plates, and a positioning mechanism used for fixing the rotating plates is arranged on the base;

the printing mechanism comprises a thread block sleeved on the fixed rod in a sliding mode, the thread block is three, one end, opposite to the thread block, of the thread block is hinged to a printing nozzle through two electric push rods, the bottom surface of the mounting plate is rotatably connected with three lead screws, the thread block is connected to the corresponding lead screws in a threaded transmission mode respectively, and three servo motors used for driving the lead screws to rotate are fixedly mounted at the top of the mounting plate.

Preferably, the outer side surfaces of the three fixing rods are fixedly sleeved with limiting rings used for limiting the thread blocks.

Preferably, the positioning mechanism comprises positioning pins which penetrate through the bottom of the base in a sliding mode, the number of the positioning pins is specifically three, the positioning pins correspond to the positions of the fixing rods, and reset springs are fixedly sleeved on the outer side faces of the positioning pins.

Preferably, the rotating plate is provided with two positioning holes matched with the positioning pins, and the two positioning holes are symmetrical about the fixing rod.

Preferably, still be provided with on the loading board and be used for carrying out rapid cooling's cooling body to printing large-scale structure surface, cooling body is including setting up the gasbag ring at the loading board top, the fixed intercommunication in top of gasbag ring has a plurality of air nozzles, rotor plate top fixed mounting has the air-cooler, the output and the gasbag ring of air-cooler pass through the connecting pipe and are connected.

Preferably, the standing groove has been seted up between two parties to the top surface of loading board, gasbag ring fixed connection is at the inner wall of standing groove, and is a plurality of the air nozzle is the circumference array and sets up at gasbag ring top, the air nozzle is the setting of forty-five degree leanin.

Compared with the prior art, the utility model provides an on-spot 3D printer beneficial effect of large scale structure is:

1. the on-site 3D printer for the large-scale structural part is improved cooperatively through multi-aspect structural design, the structure and the volume of the printer are not fixed, and the printer can be adjusted according to actual requirements during use, so that 3D printing equipment with various models and different framework sizes is manufactured; the utility model discloses rational in infrastructure, spare part is few, low to operational environment's requirement, carries out the modularization and makes the back, can install, work in the simple and easy worker canopy of job site, accomplishes the task of on-the-spot printing, and production nearby, use nearby save the transportation to the structure, avoid the transportation loss of structure.

2. The utility model relates to a can be according to the equipment of the scaled demand of structure and customization production, it adopts the open framework that XYZ orientation all can expand the regulation, the equipment of same framework size model, through setting up the open framework that all can adjust in three directions of length, width, height, can be according to the size of printing fashioned structure yardstick, adjust this framework in the great yardstick scope, thereby can be according to the needs of actual shaping in any direction of length, width, height, or carry out the extension of shaping yardstick, adjustment simultaneously in three directions, in order to satisfy the printing needs of large-scale components such as large-scale equipment, architectural design, large-scale literary composition works, large-scale exhibition works; for example, printing of structural members within 2000x1500x1200mm can be achieved by using equipment of a certain structural size model; when the equipment with a larger scale structure is adopted, the printing of structural parts with the size of more than 2000x1500x1200mm can be realized, and the core component printing spray heads and the like are kept unchanged, so that the expandability of the equipment is greatly improved.

3. The utility model discloses a set up the dead lever of mutually supporting on the base, rotor plate and positioning mechanism, when using, the loading board that will bear the large scale structure of printing the completion rotates 180 degrees, take out fast, then utilize reset spring's reset action, with locating pin tip chucking in the locating hole, thereby realize the rotation and the fixing of loading board, the structure that will print the completion takes off fast, reset fast, print next structure again, make the printing shower nozzle of 3D printer need not to preheat once more and reposition, can print in succession, the time cost is saved, help improving printing efficiency.

4. The utility model discloses a set up the gasbag ring on the loading board, the air nozzle, connecting pipe and air-cooler, at printing the in-process, utilize the air-cooler to carry appropriate amount cold wind, spray to the outside surface of large scale structure through the air nozzle, the outside surface longitudinal flow of printing the structure is only followed to the air current, take away the heat, rapid cooling, do not influence the temperature of the mutual faying face of printing material, can reach the technological effect by the even cooling of table and inside to the part of printing the completion, need not to rely on the external environment refrigeration again, it is high to avoid large scale structure because of local temperature, the phenomenon of cooling shaping speed emergence deformation slowly, help improving and print the shaping quality, improve the intensity of structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall three-dimensional appearance structure of the on-site 3D printer of the large-scale structural member according to the embodiment of the present invention;

fig. 2 is a schematic view of the overall three-dimensional appearance structure of the large-scale structural member on-site 3D printer at another angle according to the embodiment of the present invention;

FIG. 3 is a schematic perspective structural view of the rotating plate, the bearing plate and the cooling mechanism according to the embodiment of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 1.

Description of reference numerals:

1. a base; 2. fixing the rod; 3. mounting a plate; 4. a limiting ring; 5. a thread block; 6. a lead screw; 7. a servo motor; 8. printing a spray head; 9. a rotating plate; 10. a carrier plate; 11. positioning pins; 12. a return spring; 13. an electric push rod; 14. a balloon ring; 15. an air nozzle; 16. an air cooler; 17. and (4) connecting the pipes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Please refer to fig. 1-2, the utility model provides a scene 3D printer of large-scale structure is one kind towards the scene 3D printer of large-scale structure that large-scale sculpture, creative works or architectural modeling works printed the demand, can install and work in the simple and easy worker canopy of job site, and its principal parameters are as follows: the external dimension is as follows: 3100X1600X3000mm, printing supplies: an FDM thermoplastic wire; maximum molding size in XYZ direction: 2600X1200X2500mm, operating system: WIN10, print control software: printPro, data interface: SLC, network type: an Ethernet network.

Specifically, this on-spot 3D printer of large scale structure spare includes an open framework all adjustable on three directions of length, width height, and this framework includes base 1, and 1 bottom surface circumference array of this base is fixed and is provided with three at least supporting legs of group to at the fixed non-slip rubber backing plate that is provided with in this supporting leg bottom surface, play skid-proof technological effect, thereby improve the holistic stability of printer.

The fixed three dead lever 2 that is provided with in base 1's top, three dead lever 2 is the circumference array setting, the common fixedly connected with mounting panel 3 in 2 tops of three dead lever, be provided with printing mechanism jointly on three dead lever 2, printing mechanism cup joints the fillet of screw 5 on dead lever 2 including sliding, the relative one end of three fillet of screw 5 all articulates through two electric putter 13 has printing shower nozzle 8, 2 lateral surfaces of three dead lever all fixed cup joints have and are used for carrying out spacing collar 4 to fillet of screw 5, 3 bottom surfaces of mounting panel rotate and are connected with three lead screw 6, three fillet of screw 5 difference screw drive is connected on the lead screw 6 that corresponds, 3 top fixed mounting of mounting panel have three be used for driving lead screw 6 pivoted servo motor 7. This 3D printer is at the during operation, the material loading earlier, preheat, by the three-dimensional molding data of control computer according to the shaping structure again, output and print control instruction and give the on-the-spot 3D printer of large scale structure, servo motor 7 work drive lead screw 6 of 3D printer rotates, thereby make the thread block 5 stably slide on dead lever 2, through the height of controlling three thread block 5, each electric push rod 13 cooperates through flexible change length, change the spatial position of printing shower nozzle 8 jointly, in order to realize the removal and the lift of printing shower nozzle 8 in XYZ direction, the extrusion, output the printing material that melts, and with the printing material cooling after the extrusion, pile up layer upon layer, finally accomplish and print, form the large scale structure of 3D, and this large scale structure can be used at the job site and beat promptly, convenient and fast.

Referring to fig. 3 to 4, the three fixing rods 2 are rotatably sleeved with the rotating plates 9, the three rotating plates 9 are arranged in layers, one ends of the rotating plates 9 far away from the fixing rods 2 are fixedly provided with bearing plates 10 for bearing printed 3D large-scale structural components, the base 1 is provided with a positioning mechanism for fixing the rotating plates 9, the positioning mechanism comprises positioning pins 11 which slidably penetrate through the bottom of the base 1, the number of the positioning pins 11 is three and corresponds to the positions of the fixing rods 2, the outer side surface of each positioning pin 11 is fixedly sleeved with a return spring 12, the rotating plates 9 are provided with two positioning holes which are matched with the positioning pins 11, the two positioning holes are symmetrical about the fixing rods 2, and the ends of the positioning pins 11 are engaged and clamped into the positioning holes by the aid of the return action of the return springs 12, so that the bearing plates 10 are stably fixed.

The cooling mechanism for rapidly cooling the outer surface of the printed large-scale structural part is arranged on the bearing plate 10 and comprises an air bag ring 14 arranged at the top of the bearing plate 10, a plurality of air nozzles 15 are fixedly communicated with the top of the air bag ring 14, the air nozzles 15 are arranged at the top of the air bag ring 14 in a circumferential array mode, the air nozzles 15 are arranged in a forty-five-degree inward inclination mode, the obliquely arranged air nozzles 15 are just aligned to the outer side surface of the large-scale structural part in printing, so that air blowing cooling is only carried out on the large-scale structural part from the outer side surface, and the temperature of a printing material joint surface is prevented from being influenced; for the printed part, the temperature is uniformly reduced from the outside to the inside through the outer side surface, so that the local deformation of the material is prevented from being influenced.

An air cooler 16 is fixedly mounted at the top of the rotating plate 9, the output end of the air cooler 16 is connected with an air bag ring 14 through a connecting pipe 17, a placing groove is formed in the middle of the top surface of the bearing plate 10, the air bag ring 14 is fixedly connected to the inner wall of the placing groove, when the air cooler is used, the air cooler 16 is started to work, a large amount of wind power is generated, the air is sprayed out and flows to the outer side surface of the large-scale structural member through an air nozzle 15, the large-scale structural member can be cooled inwards from the outer side surface quickly, the deformation of the large-scale structural member due to overhigh local temperature and uneven pressure is reduced, and the forming quality of the structural member is improved.

The working principle is as follows: firstly, according to the forming scale requirement of a large-scale structural part, a printing nozzle 8 is positioned and preheated, then a control computer outputs a printing control instruction to a large-scale structural part on-site 3D printer according to the three-dimensional forming data of the forming structural part, a servo motor 7 of the 3D printer works to drive a lead screw 6 to rotate, so that a thread block 5 stably slides on a fixed rod 2, through controlling the height of three thread blocks 5, each electric push rod 13 is matched through the telescopic change length, the space position of the printing nozzle 8 is jointly changed, the printing nozzle 8 moves and ascends and descends in the XYZ direction, molten printing materials are extruded and output, the extruded printing materials are cooled and stacked layer by layer, finally printing is completed, a 3D large-scale structural part is formed, at the moment, a cold air fan 16 and the 3D printer are started to work synchronously, each layer of the large-scale structural part is sequentially printed on the outer surface of the large-scale structural part on the upper portion of a bearing plate 10 to be cooled, the cold air fan 16 works to generate a proper amount of cold air (generally 5-15 ℃) and spray the outer surface of the large-scale structural part through an air nozzle 15, so that the cold air is quickly cooled and the forming strength is improved.

After printing good large-scale structure spare on the loading board 10 at the top, need take out locating pin 11 on the rotor plate 9 that it connects downwards, compress reset spring 12 simultaneously, then take out the large-scale structure spare that has printed after rotating 180 degrees loading board 10, loosen locating pin 11 again, reset spring 12 resets this moment and drives locating pin 11 and kick-backs, and block in the locating hole, it is fixed with loading board 10 again, make things convenient for the 3D printer to continue to print second large-scale structure spare on second layer loading board 10, it need not the relocation to print the nozzle, preheat, can print in succession, until printing the completion with required structure spare is whole.

The utility model discloses an open framework, it is low to operational environment's requirement, through set up the dead lever on the base, rotor plate and positioning mechanism, when using, the loading board that will bear the printing completion of the large scale structure rotates 180 degrees, take out fast, then utilize reset spring's reset action, with locating pin tip chucking in the locating hole, thereby realize rotation and fixed to the loading board, reset fast, make the printing nozzle of 3D printer can print in succession, need not to preheat again, the time cost has been saved, help improving printing efficiency.

The utility model discloses above-mentioned embodiment provides a large scale structure on-site 3D printer, the structure of its printer, volume are all not fixed, can adjust according to the actual demand when using to produce the 3D printing apparatus of multiple different framework size models. The equipment of same framework size model, through setting up the open architecture that all can adjust in length, width and height three direction, through many-sided structural design collaborative improvement, adopt the open architecture that all can expand the regulation in XYZ direction, can be according to the size of the structure yardstick of printing the shaping, adjust this framework in the great yardstick range, thereby can be according to the needs of actual shaping in length, width, any direction in height, or carry out the extension of shaping yardstick, adjustment simultaneously in three directions, with can satisfy the individualized or the batch printing shaping needs of large-scale component such as large-scale equipment, architectural design, large-scale literary sketch works, large-scale sculpture exhibition works, etc., and can print at the construction field, realize and play promptly.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (7)

1. The utility model provides an on-spot 3D printer of large scale structure spare which characterized in that: it includes that one is at open framework with adjustable length, width and height all on three directions, and this framework includes base (1), base (1) bottom surface circumference array is fixed and is provided with three at least supporting legs of group, the fixed three dead lever (2) that are provided with in top of base (1), it is three dead lever (2) are circumference array setting, and are three the common fixedly connected with mounting panel (3) in dead lever (2) top is three be provided with printing mechanism jointly on dead lever (2), it is three it has cup jointed rotor plate (9), three all to rotate on dead lever (2) rotor plate (9) layering setting and rotor plate (9) keep away from the one end of dead lever (2) and all fixedly be provided with loading board (10), be provided with on base (1) and be used for carrying out the positioning mechanism who fixes to rotor plate (9).

2. The on-site 3D printer for large-scale structural members of claim 1, wherein: printing mechanism is including sliding the screw thread piece (5) of cup jointing on dead lever (2), and is three the relative one end of screw thread piece (5) all articulates through two electric push rod (13) has printing shower nozzle (8), mounting panel (3) bottom surface is rotated and is connected with three lead screw (6), and is three screw thread piece (5) are the screw drive connection respectively on corresponding lead screw (6), mounting panel (3) top fixed mounting has three and is used for driving lead screw (6) pivoted servo motor (7).

3. The on-site 3D printer for large-scale structural members of claim 1, wherein: and limiting rings (4) used for limiting the thread blocks (5) are fixedly sleeved on the outer side surfaces of the three fixing rods (2).

4. The on-site 3D printer for large-scale structural members according to claim 1, wherein: positioning mechanism runs through locating pin (11) of base (1) bottom including sliding, the quantity of locating pin (11) specifically is three and corresponding with the position of dead lever (2), the fixed cover of locating pin (11) lateral surface is equipped with reset spring (12).

5. The on-site 3D printer for large-scale structural members of claim 4, wherein: two positioning holes matched with the positioning pins (11) are formed in the rotating plate (9), and the two positioning holes are symmetrical about the fixing rod (2).

6. The on-site 3D printer for large-scale structural members according to claim 1, wherein: the bearing plate (10) is also provided with a cooling mechanism for rapidly cooling the outer surface of the printed large-scale structural part; this cooling body is including fixed gasbag ring (14) that set up at loading board (10) top, the fixed intercommunication in top of gasbag ring (14) has a plurality of air nozzles (15), rotor plate (9) top fixed mounting has air-cooler (16), the output and the gasbag ring (14) of air-cooler (16) are connected through connecting pipe (17).

7. The on-site 3D printer for large-scale structural members of claim 6, wherein: the top surface of loading board (10) has seted up the standing groove between two parties, gasbag ring (14) fixed connection is at the inner wall of standing groove, and is a plurality of air nozzle (15) are the circumference array and set up at gasbag ring (14) top, air nozzle (15) are the setting of forty-five degree leanin.

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