Sediment dam 3D printer

Abstract

A silt dam 3D printer relates to the technical field of building machinery and comprises a walking chassis, a portal frame, a printing track and a printing nozzle. A portal frame is arranged at the top of the walking chassis, and walking rails capable of enabling the portal frame to move transversely are arranged at the top of the walking chassis. A printing rail with the length direction axis being correspondingly perpendicular to the length direction axis of the walking rail is arranged in the portal frame, one end of the printing rail is in vertical sliding fit with the portal frame, and a lifting device used for driving the printing rail to move up and down is arranged at the top of the portal frame. A trolley capable of walking along the printing track is installed on the printing track, and a printing nozzle with the adjustable printing width is arranged at the bottom of the trolley. The printing width of the printing nozzle is adjustable, all the screw conveyors can run during base layer printing, and the plurality of screw conveyors on one side or two sides can be closed along with gradual increase of the number of printing layers, so that the printing operation of a small-width area is met, and the printing efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of construction machinery, in particular to a 3D printer for sediment dams. Background Art

[0002] During river dredging and management projects, construction workers will remove large amounts of silt and sediment from the bottom of the river to restore the river's natural flow rate and capacity, reduce flood risks and improve water quality; these removed silts usually contain rich minerals and organic matter, but if they are discarded directly without treatment, it will not only cause waste of resources, but may also cause new environmental problems.

[0003] In order to make full use of these silts, an innovative method has been introduced in modern river management technology, which is to mix the removed silt with existing silt solidifiers to make it suitable for use as a building material; the silt treated in this way can be used for the construction and reinforcement of dams, which not only helps to improve the flood control capacity of the river bank, but also effectively reduces project costs and realizes the recycling of resources; in recent years, with the gradual maturity of concrete 3D printing technology, the construction of silt dams through 3D printing technology can effectively improve the construction efficiency of silt dams and save labor costs.

[0004] A Chinese patent (publication number: CN214942477U) discloses a mobile 3D printing vehicle. The vehicle comprises a vehicle body, an upper portion of which is provided with a linear drive, which is internally connected to a vertical telescopic rod. Two limit blocks are fixed to the upper portion of the vertical telescopic rod, and a support seat is provided on the vertical telescopic rod. A nozzle mounting seat is provided at the end of the telescopic beam away from the beam frame, and a discharge nozzle is fixed in the nozzle mounting seat. However, the discharge nozzle in the patent is limited by its structure, and the single discharge width is limited. When used to print solid trapezoidal structures such as sediment dams, the operation efficiency is low and cannot meet the use requirements. Utility Model Content

[0005] In order to overcome the deficiencies in the background technology, the utility model discloses a sediment dam 3D printer.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention adopts the following technical solutions:

[0007] A 3D printer for sediment dams comprises a walking chassis, a gantry, a printing track and a printing nozzle; a gantry is provided on the top of the walking chassis, and a walking track is provided on the top of the walking chassis to enable the gantry to move laterally; a printing track is provided in the gantry, and its longitudinal axis is perpendicular to the longitudinal axis of the walking track, one end of the printing track is vertically slidably engaged with the gantry, and a lifting device for driving the printing track to move up and down is provided on the top of the gantry; a trolley that can travel along the printing track is installed on the printing track, and a printing nozzle with an adjustable printing width is provided at the bottom of the trolley.

[0008] Preferably, the print head includes a shell, in which a plurality of screw conveyors driven by motors are arranged side by side, the discharge ports of the screw conveyors extend out of the bottom of the shell and are arranged side by side, and a plurality of pipe interfaces are provided on one side of the shell, which are respectively connected to the feed ports of the plurality of screw conveyors.

[0009] Preferably, a storage bin is provided at one end of the printing track connected to the gantry, the storage bin is provided with a plurality of hoses respectively connected to a plurality of pipeline interfaces, and a delivery pump connected to the hoses is provided in the storage bin.

[0010] Preferably, the lifting device is a winch.

[0011] Preferably, the traveling chassis is a crawler-type traveling chassis.

[0012] Preferably, hydraulic legs are provided at the four corner ends of the walking chassis.

[0013] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0014] The utility model discloses a 3D printer for sediment dams, which has a simple structure and is easy to assemble. The overall movement is driven by a walking chassis to perform printing operations on long-distance sediment dams. A trolley that can travel along the printing track is installed on the printing track, and a printing nozzle with adjustable printing width is provided at the bottom of the trolley. When printing sediment dams, due to its trapezoidal cross-section, the screw conveyor can be fully operated when printing the base layer, and the printing width of the base layer can be guaranteed by controlling the lateral movement of the gantry. As the number of printed layers gradually increases, multiple screw conveyors on one or both sides can be closed, thereby meeting the printing operation of areas with smaller widths and achieving high printing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is a structural diagram of the printing nozzle;

[0017] Figure 3 Schematic diagram of the internal structure of the print head;

[0018] Figure 4 It is a top view of the utility model.

[0019] In the figure: 1. Walking chassis; 2. Gantry; 3. Printing track; 4. Printing nozzle; 4-1. Housing; 4-2. Motor; 4-3. Screw conveyor; 4-4. Pipe interface; 5. Walking track; 6. Lifting device; 7. Trolley; 8. Storage bin; 9. Hose; 10. Hydraulic support leg. DETAILED DESCRIPTION

[0020] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", and "right" indicating directions or positional relationships, they are only corresponding to the drawings of the present application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction.

[0021] Example 1, combined with the attached Figures 1 to 4 , a 3D printer for sediment dams, comprising a walking chassis 1, a gantry 2, a printing track 3 and a printing nozzle 4; a gantry 2 is provided on the top of the walking chassis 1, and a walking track 5 is provided on the top of the walking chassis 1 to enable the gantry 2 to move laterally, that is, the walking chassis 1 can drive the entire movement to perform printing operations on long-distance sediment dams, and the gantry 2 can move laterally along the walking track 5 according to the width requirements of the sediment dam; according to needs, the walking chassis 1 is a crawler-type walking chassis, which has strong adaptability and stable walking, and can effectively cope with field roads; hydraulic legs 10 are provided at the four corner ends of the walking chassis 1, that is, the hydraulic legs 10 can be controlled to extend during printing operations, which can adjust the levelness of the walking chassis 1 on the one hand, and effectively ensure the stability of the gantry 2 on the other hand, to avoid affecting the printing accuracy;

[0022] A printing track 3 is provided in the gantry 2, whose longitudinal axis is perpendicular to the longitudinal axis of the travel track 5. One end of the printing track 3 is vertically slidably engaged with the gantry 2, and a lifting device 6 is provided on the top of the gantry 2 for driving the printing track 3 to move up and down. That is, the printing track 3 can be driven to rise layer by layer by the lifting device 6 to perform printing layer by layer; the lifting device 6 can be a winch as needed;

[0023] A trolley 7 that can travel along the printing track 3 is installed on the printing track 3. A printing nozzle 4 with adjustable printing width is installed at the bottom of the trolley 7. That is, the sediment dam can be divided into sections according to length. The length of each section is the effective travel of the trolley 7 carrying the printing nozzle 4 on the printing track 3. Printing is performed section by section, and finally the printing construction operation of the long-distance sediment dam is completed;

[0024] The printing nozzle 4 includes a shell 4-1, in which a plurality of screw conveyors 4-3 driven by a motor 4-2 are arranged in parallel. The discharge ports of the screw conveyors 4-3 extend out of the bottom of the shell 4-1 and are arranged side by side. One side of the shell 4-1 is provided with a plurality of pipe interfaces 4-4 which are connected to the feed ports of the plurality of screw conveyors 4-3 in a one-to-one correspondence. That is, during the printing operation, the mud and sand mixed with the curing agent can be transported to the corresponding screw conveyor 4-3 through the hose, and the mud and sand are transported from the screw conveyor 4-3 to the corresponding screw conveyor 4-3 through the screw conveyor 4-3 driven by the motor 4-2. Extrusion at the discharge port; when the single printing width needs to be adjusted, the corresponding screw conveyor 4-3 can be closed, and the conveying of sediment materials into the closed screw conveyor 4-3 is stopped; that is, when printing the sediment dam, due to its trapezoidal cross-section, the screw conveyor 4-3 can be fully operated when printing the base layer, and the printing width of the base layer can be guaranteed by controlling the lateral movement of the gantry 2. As the number of printed layers gradually increases, multiple screw conveyors 4-3 on one side or both sides can be closed, thereby meeting the printing operation of a smaller width area and achieving high printing efficiency;

[0025] It should be noted that the discharge ports of the screw conveyor 4 - 3 need to be arranged closely to avoid gaps between adjacent extruded printing consumables.

[0026] Example 2, combined with the attached Figure 1 A 3D printer for sediment dams is different from that of Example 1 in that, based on Example 1, a storage bin 8 is provided at one end where the printing track 3 is connected to the gantry 2, and the storage bin 8 is provided with a plurality of hoses 9 respectively connected to a plurality of pipe interfaces 4-4, and a delivery pump correspondingly connected to the hoses 9 is provided in the storage bin 8; that is, sufficient materials can be temporarily stored in the storage bin 8 to ensure that the printing operation can proceed smoothly; in addition, the storage bin 8 can be used as a counterweight after storing materials to improve the balance of the printing track 3.

[0027] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A 3D printer for sediment dams, characterized by: The invention comprises a walking chassis (1), a gantry (2), a printing track (3) and a printing nozzle (4); the walking chassis (1) is provided with a gantry (2) on the top, and a walking track (5) capable of causing the gantry (2) to move laterally is provided on the top of the walking chassis (1); a printing track (3) whose longitudinal axis corresponds to and is perpendicular to the longitudinal axis of the walking track (5) is provided in the gantry (2); one end of the printing track (3) is vertically slidably matched with the gantry (2), and a lifting device (6) for driving the printing track (3) to move up and down is provided on the top of the gantry (2); a trolley (7) capable of traveling along the printing track (3) is installed on the printing track (3), and a printing nozzle (4) with an adjustable printing width is provided at the bottom of the trolley (7).

2. The sediment dam 3D printer according to claim 1, wherein: The printing nozzle (4) comprises a housing (4-1), wherein a plurality of screw conveyors (4-3) driven by a motor (4-2) are arranged in parallel in the housing (4-1), wherein the discharge ports of the screw conveyors (4-3) extend out of the bottom of the housing (4-1) and are arranged in parallel, and a plurality of pipe interfaces (4-4) are provided on one side of the housing (4-1) and are connected to the feed ports of the plurality of screw conveyors (4-3) in a one-to-one correspondence.

3. The sediment dam 3D printer according to claim 2, wherein: A storage bin (8) is provided at one end of the printing track (3) connected to the gantry (2), the storage bin (8) being provided with a plurality of hoses (9) correspondingly connected to the plurality of pipeline interfaces (4-4), and a delivery pump correspondingly connected to the hoses (9) is provided in the storage bin (8).

4. The sediment dam 3D printer according to claim 1, wherein: The lifting device (6) is a winch.

5. The sediment dam 3D printer according to claim 1, wherein: The traveling chassis (1) is a crawler-type traveling chassis.

6. The sediment dam 3D printer according to claim 1 or 5, characterized in that: The four corner ends of the walking chassis (1) are each provided with hydraulic legs (10).

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