Jet type concrete 3D printer

Abstract

The utility model discloses a jet type concrete 3D printer which comprises a base, a 3D printer body and a 3D printer body. The storage box is mounted at the first end of the base; the base is rotatably mounted at the second end of the base through a slewing bearing, a power box is mounted on the first side of the base, a supporting arm is formed on the second side of the base, and a first driving mechanism is mounted on the base; one end of the big arm is pivoted to the supporting arm through a first horizontal pivot, and a second driving mechanism is installed on the base; one end of the small arm is pivoted to the other end of the large arm through a second horizontal pivot, and a third driving mechanism is mounted on the large arm; the rotating joint and the small arm are coaxially arranged, the rotating joint is rotatably connected to the other end of the small arm, and a fourth driving mechanism is installed on the small arm; the adapter seat is hinged to the end, away from the small arm, of the rotating joint through a hinge shaft, and a fifth driving mechanism is installed on the rotating joint; and the spray head is detachably mounted on the adapter seat, and the spray head is connected to the material storage box through a pumping pipe. The gantry frame type 3D printer solves the problem that a gantry frame type 3D printer cannot meet the building printing requirements with flexible structural design.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a sprayed concrete 3D printer. Background Art

[0002] 3D printing is a processing technology that accumulates materials layer by layer in a certain way according to a pre-set three-dimensional model through the principle of "discrete-accumulation" to eventually form the required components. It has attracted widespread attention and rapid development at home and abroad due to its advantages such as high automation, customizability and short production process.

[0003] The continuous development of 3D printing technology has also promoted the automation of architecture and construction, and its application in the field of construction engineering is remarkable. 3D printing concrete equipment can make building materials pile up layer by layer. Before printing, you only need to set the printing path and prepare the printing materials in advance, which can save the formwork process, reduce construction costs, and reduce construction safety risks. In harsh environmental conditions such as disaster reconstruction, nuclear power plants, and lunar bases, 3D printing concrete technology can make great contributions.

[0004] In the past few years, large-scale computer-controlled 3D printing concrete gantry frame systems have been developed, but the movement direction of the print head is mostly designed to be in the direction of the three coordinate axes of X, Y, and Z, which cannot meet the needs of some buildings with flexible structural designs. Gantry frame 3D printers need to print layer by layer, which is slow, and gantry frame 3D printers need to be installed at the construction site in advance, which consumes a lot of manpower and time costs.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0006] In order to overcome the defects of the prior art, a sprayed concrete 3D printer is now provided to solve the problem that the gantry frame 3D printer cannot meet the printing requirements of some buildings with flexible structural designs.

[0007] In order to achieve the above object, a sprayed concrete 3D printer is provided, comprising:

[0008] a base having opposing first and second ends;

[0009] A material storage box, mounted on the first end of the base;

[0010] A base is rotatably mounted on the second end of the base through a slewing bearing, the base has a first side and a second side opposite to each other, a power box is mounted on the first side of the base, a support arm is formed on the second side of the base, and a first driving mechanism for driving the base is mounted on the base;

[0011] A large arm, one end of which is pivotally connected to the supporting arm via a first horizontal pivot, and a second driving mechanism for driving the large arm is mounted on the base;

[0012] A small arm, one end of which is pivotally connected to the other end of the large arm via a second horizontal pivot, and a third driving mechanism for driving the small arm is mounted on the large arm;

[0013] A rotating joint coaxially arranged with the forearm, rotatably connected to the other end of the forearm, and a fourth driving mechanism for driving the rotating joint is installed on the forearm;

[0014] An adapter seat, the adapter seat is hinged to an end of the rotating joint away from the small arm through a hinge shaft, and a fifth driving mechanism for driving the adapter seat is installed on the rotating joint;

[0015] The nozzle is detachably mounted on the adapter, and the nozzle is connected to the material storage box through a pumping pipe.

[0016] Furthermore, the pumping pipe is a polyethylene pipe or a polyurethane pipe.

[0017] Furthermore, the material storage box and the base are integrally cast.

[0018] Furthermore, an electric roller is installed on the base.

[0019] The beneficial effect of the utility model is that the spray-type concrete 3D printer of the utility model can quickly spray out the concrete layer by controlling the speed of high-pressure gas and liquid (concrete slurry), and the printing speed is fast. The nozzle realizes 360 degrees of freedom of the printing nozzle through a slewing support, a first horizontal pivot, a second horizontal pivot, a hinge axis, etc., and can print building structures with flexible structural designs and print larger building structures. In addition, the spray-type concrete 3D printer of the utility model can adjust the angle and distance of the nozzle according to actual needs, and can flexibly adapt to building structures of various shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0021] Figure 1 The figure is a schematic structural diagram of a shotcrete 3D printer according to an embodiment of the present utility model.

[0022] Figure 2 The top view of the shotcrete 3D printer according to the embodiment of the utility model.

[0023] Figure 3 It is a structural schematic diagram of the locking structure of the pumping tube according to an embodiment of the utility model. DETAILED DESCRIPTION

[0024] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] Reference Figures 1 to 3 As shown, the utility model provides a spraying type concrete 3D printer, including a base 1, a material storage box 2, a pedestal 3, a large arm 4, a small arm 5, a rotating joint 6, an adapter 7 and a nozzle 8.

[0027] In this embodiment, the base 1 has a first end and a second end opposite to each other. An electric roller is mounted on the base 1.

[0028] The material storage box 2 is installed at the first end of the base 1. The material storage box 2 and the base 1 are integrally cast.

[0029] The storage box is used to contain concrete.

[0030] The base 3 is rotatably mounted on the second end of the base 1 through a slewing bearing 31. The base 3 has a first side and a second side opposite to each other, and a power supply box 32 is mounted on the first side of the base 3. A vertically arranged support arm is formed on the second side of the base 3. A first driving mechanism for driving the base 3 is mounted on the base 1.

[0031] In this embodiment, the first driving mechanism is a first motor. The first motor is mounted on the base. The first motor is arranged vertically. The output shaft of the first motor is coaxially connected to the base.

[0032] One end of the big arm 4 is pivotally connected to the supporting arm through a first horizontal pivot. A second driving mechanism for driving the big arm 4 is installed on the base 3.

[0033] In this embodiment, the second driving mechanism is a second motor, which is mounted on the base, and the output shaft of the second motor is coaxially connected to the first horizontal pivot.

[0034] One end of the small arm 5 is pivotally connected to the other end of the large arm 4 through a second horizontal pivot. A third driving mechanism for driving the small arm 5 is mounted on the large arm 4.

[0035] In this embodiment, the third driving mechanism is a third motor. The third motor is mounted on the upper arm. The output shaft of the third motor is coaxially connected to the second horizontal pivot. The first horizontal pivot is coaxially arranged with the second horizontal pivot.

[0036] The rotating joint 6 is coaxially arranged with the small arm 5. The rotating joint 6 is rotatably connected to the other end of the small arm 5. The small arm 5 is provided with a fourth driving mechanism for driving the rotating joint 6.

[0037] In this embodiment, the fourth driving mechanism is a fourth motor, which is installed inside the forearm, and the output shaft of the fourth motor is coaxially connected to the rotating joint.

[0038] The adapter seat 7 is hinged to the end of the rotating joint 6 away from the small arm 5 through the hinge shaft. The rotating joint 6 is equipped with a fifth driving mechanism for driving the adapter seat 7.

[0039] In this embodiment, the fifth driving mechanism is a fifth motor, which is mounted on the rotating joint, and an output shaft of the fifth motor is coaxially connected to the hinge shaft.

[0040] The nozzle 8 is detachably mounted on the adapter 7. The nozzle 8 is connected to the material storage box 2 through a pumping pipe 81.

[0041] The pumping tube 81 is a polyethylene tube or a polyurethane tube.

[0042] The base 1 can be installed at the construction site according to the construction situation. It can be set to a connection mode of riveting fixed to the ground, or it can be set to a movable mode like a tire. A slewing bearing is installed on the base 1. A base is installed on the slewing bearing. The base plays a role of connecting the upper and lower parts, and a support arm is formed on one side of the base. A first horizontal pivot is installed on the upper end of the support arm. A power box is installed on the other side of the base. To facilitate on-site construction, the power box uses new energy batteries as storage batteries. The power box provides power for the entire printer. A manual control console is connected to the upper part of the power box. A controller is installed on the manual control console. The controller signal is connected to the first drive mechanism, the second drive mechanism, the third drive mechanism, the fourth drive mechanism and the fifth drive mechanism. The manual control console is provided with an emergency power-off button and control buttons for each drive mechanism, but in actual operation, the equipment is mostly rotated by remote computer numerical control.

[0043] The two ends of the upper arm are designed to be arc-shaped, and the upper end is a small diameter arc, and the lower end is a large diameter arc. The lower end of the upper arm is connected to the supporting arm below through a first horizontal pivot. The upper end of the upper arm is connected to the tail end of the small arm through a second horizontal pivot. The front end of the small arm 5 is rotatably connected to a rotating joint through a slewing bearing. The rotating joint is hinged to the adapter through a hinge shaft. The hinge shaft is connected to the printing nozzle by bolt connection. The nozzle is a concrete 3D printing nozzle. The nozzle realizes 360° freedom of the printing nozzle through a slewing bearing, a first horizontal pivot, a second horizontal pivot, a hinge shaft, etc.

[0044] A material storage box is installed on one side of the base. The material storage box is integrally cast with the base 1, which provides a material storage function and can also ensure the stability of the robot arm operation through its own gravity and material weight. The material storage box can control the opening and closing of the feed port through the feed port switch, and a discharge port is provided on the other side, which is connected to the pumping pipe through a thread. The pumping pipe is a special polyethylene (PE) or polyurethane (PU) material with a certain length of elasticity to ensure that the pumping pipe can rotate freely with the robot arm body during the printing process, and is connected to the support arm through a locking structure to ensure the stability of the pumping pipe during the printing process.

[0045] See also Figure 3 As shown, the locking structure includes a pipe hoop 82 and a locking bolt 85. The pumping pipe sleeve is provided with a pipe hoop 82. Flange plates 83 are formed on opposite sides of the pipe hoop. An arm support seat 84 is formed on the support arm. The flange plate is detachably mounted on the arm support seat through the locking bolt 85.

[0046] The other end of the pumping tube is threadedly connected to the print head to ensure that the material can smoothly enter the concrete 3D printing nozzle through the pumping tube. The concrete 3D printing nozzle is connected to the hinge shaft by a bayonet connection or a bolt connection. The concrete 3D printing nozzle can achieve 360° rotation freedom by various rotating bearings on the robot arm, and the inner diameter size of the concrete 3D printing nozzle can be changed with the printing structure. Generally, nozzles with an inner diameter of 10mm, 15mm, 20mm, and 30mm can be used.

[0047] The spray-type concrete 3D printer of the utility model can quickly spray out concrete layers by controlling the speed of high-pressure gas and liquid (concrete slurry), and the printing speed is faster. The traditional gantry frame 3D printer needs to print layer by layer, and the speed is slower.

[0048] The sprayed concrete 3D printer of the present invention can print larger building structures and can print large areas of walls, floors and ceilings at one time, while the gantry frame 3D printer is limited by the size of the equipment. In addition, the sprayed concrete 3D printer of the present invention can adjust the angle and distance of the nozzle according to actual needs, and can flexibly adapt to various shapes of building structures.

[0049] The sprayed concrete 3D printer of the utility model can automatically complete the construction of buildings, saving construction time and labor costs.

[0050] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A sprayed concrete 3D printer, characterized in that: include: a base having opposing first and second ends; A material storage box, mounted on the first end of the base; A base is rotatably mounted on the second end of the base through a slewing bearing, the base has a first side and a second side opposite to each other, a power box is mounted on the first side of the base, a support arm is formed on the second side of the base, and a first driving mechanism for driving the base is mounted on the base; A large arm, one end of which is pivotally connected to the supporting arm via a first horizontal pivot, and a second driving mechanism for driving the large arm is mounted on the base; A small arm, one end of which is pivotally connected to the other end of the large arm via a second horizontal pivot, and a third driving mechanism for driving the small arm is mounted on the large arm; A rotating joint coaxially arranged with the forearm, rotatably connected to the other end of the forearm, and a fourth driving mechanism for driving the rotating joint is installed on the forearm; An adapter seat, the adapter seat is hinged to an end of the rotating joint away from the small arm through a hinge shaft, and a fifth driving mechanism for driving the adapter seat is installed on the rotating joint; The nozzle is detachably mounted on the adapter, and the nozzle is connected to the material storage box through a pumping pipe.

2. The sprayed concrete 3D printer according to claim 1, characterized in that: The pumping pipe is a polyethylene pipe or a polyurethane pipe.

3. The sprayed concrete 3D printer according to claim 1, characterized in that: The material storage box and the base are integrally cast.

4. The sprayed concrete 3D printer according to claim 1, characterized in that: An electric roller is installed on the base.

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