3D printing equipment for tower-type constructional engineering

Abstract

The utility model relates to tower-type 3D printing equipment for constructional engineering, which comprises a plurality of sections of vertical columns, a plurality of lifting counterweights, a plurality of 3D printing devices, a plurality of 3D printing devices, a plurality of 3D printing devices and a plurality of 3D printing devices, the stand column is provided with the lifting rotating disc capable of moving in the height direction of the stand column, the lifting rotating disc is provided with a cantilever support, and the cantilever support can rotate around the stand column; the cantilever and the balance arm are horizontally and symmetrically installed on the two sides of the cantilever support, and a balance arm fixed balance weight for balancing the weight of the cantilever and a balance arm movable balance weight capable of moving in the length direction of the balance arm are installed on the balance arm. And the printing part can move in the length direction of the cantilever, and the balance arm moves the balance weight to balance the weight of the printing part. According to the tower type building 3D printing equipment, the printing range of the printing part is cylindrical, the printing range can be adjusted according to different printing requirements, and the universality of the tower type building 3D printing equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building printing, and more specifically, to a 3D printing device for tower building projects. Background Technique

[0002] With the acceleration of the global urbanization process and the growing demand for new materials and new technologies in the construction industry, building 3D printing technology has gradually become a forefront technology attracting much attention in the construction industry. Building 3D printing concrete technology refers to the technology of using a 3D printer to precisely print concrete materials into specific shapes or structures. There are mainly two methods for 3D printing technology in the construction field. One is the prefabricated modular method. This technical path involves using a 3D printing device to pre-print building modules in a factory, and then transporting them to the construction site for splicing into a complete building structure. The other method is in-situ printing, that is, directly using a large building 3D printer for construction at the construction site. This method can continuously print a complete house structure on-site.

[0003] In-situ 3D printing building technology has significant advantages in economic benefits, especially in cost savings and long-term investment returns. This technology can significantly reduce the manpower requirement and speed up the construction progress, which is particularly beneficial for large-scale building projects. In-situ 3D printing allows the machine to operate continuously, potentially achieving all-weather automated construction, which has obvious advantages compared with traditional building methods. Existing in-situ 3D printers are generally mainly frame-type. The component design must be within the range of the 3D printer frame. It is very troublesome to move the device beyond the printing range, which limits the printing range of the building. At the same time, it is relatively troublesome to transport and install on-site. First, the ground needs to be leveled, and the frame or slide rail of the 3D printer needs to be built to ensure the accuracy of the X-axis and Y-axis. The Z-axis conducts the printing work by connecting the printing material cylinder and the nozzle through a cross beam.

[0004] Therefore, how to provide a building printing equipment with an adjustable printing range and convenient on-site installation is an urgent problem to be solved by those skilled in the art. Content of the Utility Model

[0005] For this reason, the purpose of the present utility model is to propose a 3D printing device for tower building projects.

[0006] The present utility model provides a 3D printing device for tower building projects, including:

[0007] A column, the column has multiple sections, its bottom is installed on the foundation and is vertically arranged, and it has a lifting counterweight;

[0008] A lifting turntable, the column has a lifting turntable that can move along its height direction, the lifting turntable has a cantilever seat, and the cantilever seat can rotate around the column;

[0009] A cantilever and a balancing arm, wherein the cantilever and the balancing arm are symmetrically installed on both sides of the cantilever seat, and the balancing arm is equipped with a balancing arm fixed weight for balancing the weight of the cantilever and a balancing arm movable weight that can move along the length direction of the balancing arm;

[0010] The printing part is movable along the length direction of the cantilever, and the balance arm moves the counterweight to balance the weight of the printing part.

[0011] According to the technical solution provided by the utility model, a pull rod is arranged between the cantilever seat and the cantilever.

[0012] According to the technical solution provided by the utility model, a plurality of installation fixing positions are installed on the outer wall of the cantilever seat and are staggered with the cantilever and the balance arm. The plurality of installation fixing positions jointly fix and support a pull rod seat. The height of the pull rod seat is greater than the height of the cantilever seat, and the top thereof is provided with the pull rod arranged inclined toward the cantilever side.

[0013] According to the technical solution provided by the utility model, the plurality of column connecting sections are detachably connected, and the outer wall thereof is provided with a lifting guide rail and a lifting rack which cooperate with the lifting turntable for lifting and moving.

[0014] According to the technical solution provided by the utility model, a pulley for lifting and lowering counterweight is installed on the top of the column, the lifting and lowering counterweight is located in the frame of the column and is connected to the pulley through one end of a steel wire rope, and the other end of the steel wire rope is connected to the lifting turntable.

[0015] According to the technical solution provided by the utility model, the lifting turntable further includes: a turntable base, the bottom of which is connected to a lifting motor assembly and a rotating motor assembly, the middle of which has a channel for the column to pass through, and the channel has a lifting adjustment wheel that cooperates with the lifting guide rail;

[0016] A cross bearing, wherein the cross bearing is connected between the turntable base and the cantilever base, and the inner wall of the cross bearing is rotatably connected to a rotating adjustment wheel connected to the outer wall of the channel;

[0017] Among them, the output gear of the rotating motor assembly is meshed with the gear ring on the outer wall of the cross bearing for transmission, and the output gear of the lifting motor assembly is meshed with the lifting rack for transmission.

[0018] According to the technical solution provided by the utility model, the cantilever includes multiple detachable sections, and a cantilever guide rail and a cantilever rack that slide in cooperation with the printing part are arranged on the outer wall along the length direction.

[0019] According to the technical solution provided by the present utility model, the printing part at least includes a V-shaped wheel cooperating with the V-shaped cantilever guide rail, and an output tooth of a traveling motor cooperating with the cantilever rack.

[0020] According to the technical solution provided by the present utility model, the printing part further includes a hopper. The V-shaped wheel is installed on one side of the hopper. The hopper drives a stirring rod in the stirring barrel through a stirring motor to extrude the 3D printing material from a nozzle. The printing range of the printing part is a cylinder.

[0021] According to the technical solution provided by the present utility model, a limiting rod is connected between the balance arm and the pull rod seat.

[0022] It can be seen from the above technical solutions that, compared with the prior art, the present utility model has the following technical effects:

[0023] When the 3D printing device for tower buildings provided by the present utility model is transported, it only needs to fold and place the columns and the cantilever on the vehicle for loading, and install it on the foundation prepared in advance at the site. After finding the origin, printing can be carried out. The printing part can move on the cantilever, and at the same time, a balance arm for balancing the printing head is equipped with a moving counterweight. Then the cantilever can make lifting and rotating movements driven by the lifting turntable, thereby realizing that the printing range of the printing part is cylindrical. According to different printing requirements, the printing range can be adjusted, improving the versatility of the 3D printing device for tower buildings.

[0024] For safety reasons, the lifting turntable is responsible for lifting and rotating on the column to facilitate printing. The rotation can print reciprocally in a 360° direction, increasing the printing range;

[0025] The lifting counterweight is used to balance the weights of the lifting turntable, the cantilever and the balance arm. The function of the lifting counterweight is to make the load of the lifting motor assembly during rising the same as or close to the load of the lifting motor assembly during falling. The lifting counterweight is connected to the lifting turntable by two steel wire ropes through two symmetrically arranged pulleys at the top of the column. When the lifting turntable rises, the lifting counterweight descends, and when the lifting turntable descends, the lifting counterweight rises. The lifting counterweight is inside the column, and there is a guiding design for the lifting counterweight inside the column. The guiding design can be that there are guiding grooves on both sides of the lifting counterweight, and there are guiding tracks inside the column, and the guiding tracks ensure that the lifting counterweight does not move randomly.

[0026] The balance arm is used to balance the weight of the cantilever, enabling the center of gravity of the entire machine to fall within the square frame of the column, effectively preventing the risk of the entire machine tipping over. The counterweight on the balance arm is divided into two parts. One part is the fixed counterweight of the balance arm, which is used to balance the weight of the cantilever, and the other part is the movable counterweight of the balance arm, which is used to balance the weight of the print head. The movement of the movable counterweight of the balance arm is opposite to the movement direction of the print head. Specifically, the movable counterweight of the balance arm moves in the opposite direction to the print head in proportion. The movement of the movable counterweight of the balance arm is achieved through the movable counterweight servo motor, the movable counterweight gear, and the movable counterweight rack corresponding to the movable counterweight of the balance arm on the balance arm.

[0027] To increase the safety and stability of the printer, there are two tie rods on the cantilever. The function of the tie rods is to reduce the deformation of the cantilever. There is one tie rod on the balance arm, which can balance the tension of the tie rods on the cantilever.

[0028] The column of the present utility model is fixed, with good rigidity, and still has good rigidity as the printing part rises. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative efforts.

[0030] Figure 1 It is a schematic structural diagram of a 3D printing device for tower-type construction projects provided by the present utility model;

[0031] Figure 2 It shows a schematic structural diagram of the column;

[0032] Figure 3 It shows a schematic cross-sectional diagram of the column;

[0033] Figure 4 It is an exploded view of the lifting turntable;

[0034] Figure 5 It shows a perspective view of the lifting turntable from one angle (the tie rod seat is not shown);

[0035] Figure 6 It shows a perspective view of the lifting turntable from another angle (the tie rod seat is not shown);

[0036] Figure 7 It shows the front view of the lifting turntable;

[0037] Figure 8 For Figure 7Schematic enlarged view of part B;

[0038] Figure 9 is Figure 1 Schematic enlarged view of part A. Specific implementation manner

[0039] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0040] Since existing in-situ 3D printers are generally mainly frame-type, the component design must be within the range of the 3D printer frame. It is very troublesome to move the device beyond the printing range, which limits the printing range of the building. At the same time, it is more troublesome to transport and install on-site. First, the ground needs to be leveled, and the frame or slide rail of the 3D printer needs to be built to ensure the accuracy of the X-axis and Y-axis. The Z-axis conducts the printing work by connecting the printing material cylinder and the nozzle through a cross beam. In view of this, the present utility model provides a 3D printing device for tower construction projects. Refer to the attached Figure 1 , including: a column 1, the column 1 has multiple sections, its bottom is installed on the foundation and is arranged vertically, and it has a lifting counterweight 11; a lifting turntable 2, the column 1 is provided with a lifting turntable 2 that can move along its height direction, and the lifting turntable 2 is provided with a cantilever seat 21, and the cantilever seat 21 can rotate around the column 1; a cantilever 3 and a balance arm 4, the cantilever 3 and the balance arm 4 are horizontally symmetrically installed on both sides of the cantilever seat 21, the balance arm 4 is installed with a balance arm fixed counterweight 41 for balancing the weight of the cantilever 3, and a balance arm moving counterweight 42 that can move along the length direction of the balance arm 4; a printing part 5, the printing part 5 can move along the length direction of the cantilever 3, and the balance arm moving counterweight 42 balances the weight of the printing part 5.

[0041] When the above technical solution is transported, as long as the column and the cantilever are folded and placed on the vehicle for loading, and installed on the foundation prepared in advance at the site, printing can be carried out after finding the origin. The printing part can move on the cantilever, and at the same time, a balance arm moving counterweight for balancing the printing head is equipped. Then the cantilever can perform lifting and rotating movements driven by the lifting turntable, thereby realizing that the printing range of the printing part is cylindrical. According to different printing requirements, the printing range can be adjusted, improving the versatility of the 3D printing device for tower buildings.

[0042] Advantageously, a pull rod 7 is arranged between the cantilever seat 21 and the cantilever 3 to increase the safety and stability of the printer. There can be two pull rods on the cantilever, and the function of the pull rods is to reduce the deformation of the cantilever.

[0043] Specifically, a plurality of installation fixing positions may be installed on the outer wall of the cantilever seat 21 and staggered with the cantilever 3 and the balance arm 4, and a pull rod seat 6 is fixedly supported by the plurality of installation fixing positions. The height of the pull rod seat 6 is greater than the height of the cantilever seat 21, and the top thereof is provided with the pull rod 7 inclined toward the cantilever 3, and the two pull rods 7 are fixed at different positions on the cantilever 3.

[0044] In an embodiment of the utility model, the connecting sections of the multiple sections of the columns 1 are detachably connected, and adjacent sections of the columns can be connected by bolts and nuts. There are bolt holes at corresponding positions, and the outer wall thereof is provided with a lifting guide rail 12 and a lifting rack 13 that cooperate with the lifting turntable 2 for lifting and moving.

[0045] See attached Figure 2 and 3 The column can include a bottom section, a middle section and an upper section. Lifting racks 13 are symmetrically arranged on both sides of the column, which mainly act on the lifting turntable to be able to rise and fall.

[0046] There can be four lifting rails 12 located at the four corners of the column frame, and there can be two lifting racks 13, which are symmetrically arranged on two surfaces of the column frame. The lifting rails 12 and the lifting racks 13 have a certain length to ensure that the lifting turntable has a certain lifting stroke.

[0047] In the specific embodiments of the present invention, see the attached Figure 2 A pulley 14 for lifting and lowering counterweight 11 is installed on the top of the column 1. The lifting and lowering counterweight 11 is located in the frame of the column 1 and is connected to the pulley 14 through one end of a steel wire rope, and the other end of the steel wire rope is connected to the lifting turntable 2.

[0048] The lifting counterweight is used to balance the weight of the lifting turntable, cantilever and balance arm. The function of the lifting counterweight is to make the load of the lifting motor assembly during the rise the same or close to the load of the lifting motor assembly during the descent.

[0049] The lifting counterweight can be connected to the lifting turntable 2 by two symmetrically arranged pulleys 14 at the top of the column with two steel wire ropes. When the lifting turntable 2 rises, the lifting counterweight 11 descends, and when the lifting turntable 2 descends, the lifting counterweight 11 rises.

[0050] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0051] In the embodiment of the present utility model, referring to the attached Figures 4 - 8 , the lifting turntable 2 further includes: a turntable base 22, the bottom of the turntable base 22 is connected with a lifting motor assembly 23 and a rotating motor assembly 26, the middle part thereof has a channel for the column 1 to pass through, and a lifting adjusting wheel 24 cooperating with the lifting guide rail 12 is arranged in the channel;

[0052] A cross bearing 27, the cross bearing 27 is connected between the turntable base 22 and the cantilever base 21, and the inner wall of the cross bearing 27 is rotatably connected with a rotating adjusting wheel 25 connected to the outer wall of the channel;

[0053] Wherein, the output gear of the rotating motor assembly 26 meshes with a gear ring on the outer wall of the cross bearing 27 for transmission, and the output gear of the lifting motor assembly 23 meshes with the lifting rack 13 for transmission.

[0054] In the above solution, the cantilever base 21 and the turntable base 22 make relative rotational movement, and the cantilever base 21 follows the turntable base 22 to make lifting movement. Therefore, the cantilever base 21 can perform rotational and lifting movements simultaneously.

[0055] The turntable base 22 cannot rotate and can only make lifting movement along the lifting guide rail and the lifting rack 13. A total of 20 adjusting wheels are installed on the turntable base 22 up and down, 16 of which are lifting adjusting wheels 24 for ensuring the lifting movement of the turntable base 22, and 4 of which are rotating adjusting wheels 25 for ensuring the rotational movement of the cantilever 21.

[0056] In the embodiment of the present utility model, the cantilever 3 includes multiple detachable segments, and a cantilever guide rail 31 and a cantilever rack 32 for slidingly cooperating with the printing part 5 are arranged on the outer wall thereof along the length direction.

[0057] Referring to the attached Figure 9 , the printing part 5 at least includes a V-shaped wheel 51 cooperating with the V-shaped cantilever guide rail 31 and the output teeth of a traveling motor 52 cooperating with the cantilever rack 32. Specifically, the printing part 5 further includes a hopper, the V-shaped wheel 51 is installed on one side of the hopper, and the hopper drives a stirring rod in a stirring barrel 54 through a stirring motor 53 to extrude the 3D printing material from a nozzle 55, and the printing range of the printing part 5 is a cylinder.

[0058] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0059] In the 3D printing device for tower buildings of the present utility model, the printing work is mainly carried out by the printing part externally connected to the long cantilever on-site. A cantilever guide rail and a cantilever rack are installed on the cantilever. The traveling motor on the printing part drives the printing part to move horizontally along the cantilever guide rail through an output gear and the cantilever rack, facilitating the printing part to perform horizontal movement printing along the cantilever direction. The printing range formed by the movement track of the printing part can be a cylinder with a diameter less than or equal to 34 meters, an inner hole greater than 4 meters, and a height of 14 meters. The printing part is connected to the V-shaped cantilever guide rail by V-shaped wheels on the printing hopper. The hopper drives the stirring rod in the stirring barrel through a stirring motor and extrudes the 3D printing material through a printing nozzle.

[0060] The present utility model combines the tower structure with building 3D printing, which not only solves the problem of limited printing range of the frame-type in-situ 3D printer, but also meets the requirement of completing house buildings with more than two floors by using 3D printing technology. In particular, it is suitable for printing villa groups and large circular multi-story buildings.

[0061] In the present utility model, a limiting rod 8 is connected between the balance arm 4 and the pull rod seat 6, which can balance the pulling force of the pull rod on the cantilever.

[0062] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0063] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A 3D printing device for tower construction engineering, characterized in that: include: A column (1), the column (1) having multiple sections, the bottom of which is mounted on a foundation and arranged vertically, and having a lifting counterweight (11); A lifting turntable (2), wherein the column (1) is provided with a lifting turntable (2) which can move along its height direction, and the lifting turntable (2) is provided with a cantilever seat (21), and the cantilever seat (21) can rotate around the column (1); A cantilever (3) and a balancing arm (4), wherein the cantilever (3) and the balancing arm (4) are symmetrically mounted on both sides of the cantilever seat (21), and the balancing arm (4) is mounted with a balancing arm fixed weight (41) for balancing the weight of the cantilever (3), and a balancing arm movable weight (42) capable of moving along the length direction of the balancing arm (4); A printing part (5), wherein the printing part (5) is movable along the length direction of the cantilever (3), and the balancing arm moves the counterweight (42) to balance the weight of the printing part (5).

2. A 3D printing device for tower construction engineering according to claim 1, characterized in that: A pull rod (7) is arranged between the cantilever seat (21) and the cantilever (3).

3. A 3D printing device for tower construction engineering according to claim 2, characterized in that: A plurality of mounting and fixing positions are installed on the outer wall of the cantilever seat (21) and staggered with the cantilever (3) and the balance arm (4), and a pull rod seat (6) is fixedly supported by the plurality of mounting and fixing positions. The height of the pull rod seat (6) is greater than the height of the cantilever seat (21), and the top of the pull rod seat (6) is provided with the pull rod (7) arranged obliquely toward the cantilever (3).

4. A 3D printing device for tower construction engineering according to claim 1, characterized in that: The plurality of connecting sections of the upright posts (1) are detachably connected, and the outer walls thereof are provided with a lifting guide rail (12) and a lifting rack (13) which cooperate with the lifting turntable (2) to move upward and downward.

5. A 3D printing device for tower construction engineering according to claim 1, characterized in that: A pulley (14) for lifting a counterweight (11) is installed on the top of the column (1); the lifting counterweight (11) is located in the frame of the column (1) and is connected to the pulley (14) via one end of a steel wire rope; the other end of the steel wire rope is connected to the lifting turntable (2).

6. A 3D printing device for tower construction engineering according to claim 4, characterized in that: The lifting turntable (2) further comprises: a turntable base (22), the bottom of which is connected to a lifting motor assembly (23) and a rotating motor assembly (26), the middle of which has a passage for the column (1) to pass through, and the passage has a lifting adjustment wheel (24) that cooperates with the lifting guide rail (12); A cross bearing (27), the cross bearing (27) being connected between the turntable base (22) and the cantilever base (21), the inner wall of the cross bearing (27) being rotatably connected to a rotating adjustment wheel (25) connected to the outer wall of the channel; The output gear of the rotating motor assembly (26) meshes with the gear ring on the outer wall of the cross bearing (27) for transmission, and the output gear of the lifting motor assembly (23) meshes with the lifting rack (13) for transmission.

7. A 3D printing device for tower construction engineering according to claim 1, characterized in that: The cantilever (3) comprises a plurality of detachable sections, and a cantilever guide rail (31) and a cantilever rack (32) are provided on the outer wall along the length direction and are slidably matched with the printing part (5).

8. A 3D printing device for tower construction engineering according to claim 7, characterized in that: The printing part (5) at least comprises a V-shaped wheel (51) matched with the V-shaped cantilever guide rail (31), and output teeth of a travel motor (52) matched with the cantilever rack (32).

9. A 3D printing device for tower construction engineering according to claim 8, characterized in that: The printing unit (5) further comprises a hopper, the V-shaped wheel (51) being mounted on one side of the hopper, the hopper drives a stirring rod in a stirring barrel (54) via a stirring motor (53) to extrude 3D printing material from a nozzle (55), and the printing range of the printing unit (5) is a cylinder.

10. A 3D printing device for tower construction engineering according to claim 3, characterized in that: A limiting rod (8) is connected between the balancing arm (4) and the pull rod seat (6).

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