3D printing concrete layer grain eliminating device

Abstract

The utility model relates to the technical field of 3D printing equipment, in particular to a 3D printing concrete layer grain eliminating device which comprises an automatic guided vehicle, a lead screw is rotationally installed at the top of the automatic guided vehicle, an internal thread block is connected to the lead screw in a threaded and sleeved mode, and a limiting mechanism used for limiting the internal thread block is arranged at the top of the automatic guided vehicle. The automatic guided vehicle moves along the 3D printed concrete layer to drive the scraper to move to scrape concrete layer grains of the concrete layer, the scraped concrete can flow downwards along the flow channel on the side face of the scraper, and the concrete flowing downwards along the flow channel can drop into the collecting box. According to the concrete scraping device, scraped concrete can be collected and treated in a unified mode, the situation that when concrete layer lines of a concrete layer are scraped, redundant concrete drips to the surface of the concrete layer below to cause concrete protrusions is avoided, and the concrete can be guided and collected into a collecting box through a flow channel in the side face of a scraping plate.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing equipment technology, and in particular to a 3D printing concrete layer texture elimination device. Background Technology

[0002] 3D printed concrete is an innovative construction method based on additive manufacturing technology. It constructs a three-dimensional building by extruding prepared concrete slurry from a nozzle and stacking it layer by layer. The entire process does not require the use of formwork or vibration, which significantly improves construction speed, reduces costs, and is more environmentally friendly.

[0003] A search revealed a Chinese patent application with application number 202222151756.9, which discloses "a 3D printed concrete layer texture removal device, including a rotating mechanism and two sets of scraping mechanisms; the rotating mechanism is adjustablely rotatably connected to the outside of the nozzle, and the two sets of scraping mechanisms are respectively adjustablely rotatably connected to both sides of the rotating mechanism, with the rotation axes of the rotating mechanism and the scraping mechanism perpendicular to each other." However, when the aforementioned 3D printed concrete layer texture removal device removes the printed concrete layers, the excess concrete that produces the layers drips down the scraping blade as it rotates to scrape away the concrete layers, resulting in dripping concrete on the surface of the printed concrete below, causing concrete protrusions on the surface of the lower printed concrete layer. Therefore, in order to solve this problem, a 3D printed concrete layer texture removal device has been proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a 3D printed concrete layer texture elimination device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A 3D printed concrete layer texture removal device includes an automatic guide vehicle. A lead screw is rotatably mounted on the top of the automatic guide vehicle, and an internal thread block is threaded onto the lead screw. A limiting mechanism for limiting the internal thread block is provided on the top of the automatic guide vehicle. A scraper is connected to the side of the internal thread block via an electric telescopic rod. The scraper has mounting grooves on the side away from the electric telescopic rod and at the bottom of the scraper. A distance sensor is installed in the mounting groove. Several flow channels are formed on one side of the scraper. A collection box is installed on the side of the scraper near the flow channels, and the bottom of the flow channels is located in the collection box.

[0007] Preferably, the automated guided vehicle is equipped with a mounting plate on its top, and a motor is mounted on the top of the mounting plate. The output shaft of the motor is connected to a lead screw.

[0008] Preferably, a circular groove is installed on the top of the mounting plate, the motor is installed in the circular groove, a PLC controller is installed on the top of the mounting plate, and the distance sensor, electric telescopic rod and motor are all electrically connected to the PLC controller.

[0009] Preferably, the limiting mechanism includes a slide rod installed on the top of the mounting plate, a sliding sleeve slidably sleeved on the slide rod, and the side of the internal thread block away from the electric telescopic rod is connected to the outer wall of the sliding sleeve.

[0010] Preferably, a top plate is installed at the top of the slide rod, a bearing is installed at the bottom of the top plate, and the top of the lead screw is installed in the inner ring of the bearing.

[0011] Preferably, a connecting plate is installed on the side of the internal threaded block away from the sliding sleeve, and the electric telescopic rod is installed on the side of the connecting plate away from the internal threaded block.

[0012] Preferably, a reinforcing plate is installed on the side of the scraper near the electric telescopic rod, and the end of the piston rod of the electric telescopic rod is connected to the reinforcing plate.

[0013] Preferably, a sleeve is installed on the side of the connecting plate away from the internal thread block, and a guide rod is slidably sleeved inside the sleeve, with the end of the guide rod fixed to the side of the reinforcing plate away from the scraper.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, the automatic guided vehicle moves along the 3D printed concrete layer, which drives the scraper to scrape away the concrete texture. The scraped concrete flows down the flow channel on the side of the scraper and drips into the collection box. This allows for the unified collection and treatment of the scraped concrete, preventing excess concrete from dripping onto the surface of the lower concrete layer and causing concrete bulges when scraping away the concrete texture. The flow channel on the side of the scraper guides the concrete and collects it into the collection box.

[0016] 2: In this utility model, the piston rod of the electric telescopic rod pushes the reinforcing plate closer to the concrete layer where the layer texture needs to be removed. The reinforcing plate can then drive the scraper to move closer to the concrete layer until the distance sensor on the side of the scraper detects that the distance between the distance sensor and the concrete layer has reached the preset distance and stops. When the distance sensor on the side of the scraper detects that the distance between the distance sensor and the concrete layer has reached the preset distance, the scraper can move laterally to scrape away the concrete layer texture. Attached Figure Description

[0017] Figure 1 This is a first-view structural schematic diagram of a 3D-printed concrete layer texture elimination device proposed in this utility model.

[0018] Figure 2 This is a second-view structural schematic diagram of a 3D-printed concrete layer texture elimination device proposed in this utility model.

[0019] Figure 3 This is a third-view structural schematic diagram of a 3D-printed concrete layer texture elimination device proposed in this utility model.

[0020] Figure 4 This is a schematic diagram showing the connection between the connecting plate and the electric telescopic rod of a 3D printed concrete layer texture elimination device proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of the scraper structure of a 3D printed concrete layer texture elimination device proposed in this utility model.

[0022] Figure 6 for Figure 5 A magnified view of part A in the middle.

[0023] In the diagram: 1. Automated Guided Vehicle (AGV); 2. Mounting Plate; 3. Circular Slot; 4. Motor; 5. Lead Screw; 6. Top Plate; 7. Internal Threaded Block; 8. Sliding Sleeve; 9. Sliding Rod; 10. Bearing; 11. Connecting Plate; 12. Electric Telescopic Rod; 13. Reinforcing Plate; 14. Scraper; 15. Collection Box; 16. PLC Controller; 17. Flow Channel; 18. Sleeve; 19. Guide Rod; 20. Mounting Slot; 21. Distance Sensor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-6 A 3D printed concrete layer texture elimination device includes an automatic guide vehicle 1. A lead screw 5 is rotatably mounted on the top of the automatic guide vehicle 1. An internal thread block 7 is threaded onto the lead screw 5. A limiting mechanism for limiting the internal thread block 7 is provided on the top of the automatic guide vehicle 1. A scraper 14 is connected to the side of the internal thread block 7 through an electric telescopic rod 12. The scraper 14 has an installation groove 20 on the side away from the electric telescopic rod 12 and at the bottom of the scraper 14. A distance sensor 21 is installed in the installation groove 20. Several flow channels 17 are provided on one side of the scraper 14. A collection box 15 is installed on the side of the scraper 14 near the flow channels 17. The bottom end of the flow channels 17 is located in the collection box 15.

[0026] As a technical optimization of this utility model, an automatic guided vehicle 1 is equipped with an mounting plate 2 on its top, and a motor 4 is mounted on the top of the mounting plate 2. The output shaft of the motor 4 is connected to a lead screw 5.

[0027] As a technical optimization of this utility model, a circular groove 3 is installed on the top of the mounting plate 2, the motor 4 is installed in the circular groove 3, and a PLC controller 16 is installed on the top of the mounting plate 2. The distance sensor 21, the electric telescopic rod 12 and the motor 4 are all electrically connected to the PLC controller 16.

[0028] As a technical optimization of this utility model, the limiting mechanism includes a slide rod 9 installed on the top of the mounting plate 2, a slide sleeve 8 slidably sleeved on the slide rod 9, and the side of the internal thread block 7 away from the electric telescopic rod 12 connected to the outer wall of the slide sleeve 8. Through the cooperation of the slide sleeve 8 and the slide rod 9, the internal thread block 7 can be limited, so that the internal thread block 7 can move up and down on the lead screw 5.

[0029] As a technical optimization of this utility model, a top plate 6 is installed at the top of the slide rod 9, a bearing 10 is installed at the bottom of the top plate 6, and the top of the lead screw 5 is installed in the inner ring of the bearing 10. The bearing 10 can provide guidance for the rotation of the lead screw 5.

[0030] As a technical optimization of this utility model, a connecting plate 11 is installed on the side of the internal thread block 7 away from the sliding sleeve 8, and an electric telescopic rod 12 is installed on the side of the connecting plate 11 away from the internal thread block 7.

[0031] As a technical optimization of this utility model, a reinforcing plate 13 is installed on the side of the scraper 14 near the electric telescopic rod 12, and the end of the piston rod of the electric telescopic rod 12 is connected to the reinforcing plate 13.

[0032] As a technical optimization of this utility model, a sleeve 18 is installed on the side of the connecting plate 11 away from the internal threaded block 7. A guide rod 19 is slidably sleeved inside the sleeve 18. The end of the guide rod 19 is fixed to the side of the reinforcing plate 13 away from the scraper 14. Through the cooperation of the sleeve 18 and the guide rod 19, the scraper 14 can be guided and supported when it moves away from the internal threaded block 7.

[0033] In this utility model, the preset value of the distance between the distance sensor 21 and the concrete layer is 0-0.1cm.

[0034] When using this invention, if it is necessary to remove the concrete layer texture after 3D printing, firstly, the automatic guided vehicle 1 is used to move the device to the side of the concrete layer where the concrete layer texture needs to be removed.

[0035] Start the electric telescopic rod 12. The piston rod of the electric telescopic rod 12 pushes the reinforcing plate 13 closer to the concrete layer where the layer texture needs to be removed. The reinforcing plate 13 then drives the scraper 14 to move closer to the concrete layer until the distance sensor 21 on the side of the scraper 14 detects that the distance between the distance sensor 21 and the concrete layer has reached the preset distance, and then stops. When the distance sensor 21 on the side of the scraper 14 detects that the distance between the distance sensor 21 and the concrete layer has reached the preset distance, the scraper 14 moves laterally to scrape away the concrete layer texture. After the lateral position of the scraper 14 is adjusted, start the motor 4. The output shaft of the motor 4 drives the lead screw 5 to rotate. The rotation of the lead screw 5 causes the internal thread block 7 to move up and down on the lead screw 5, which can adjust the height of the scraper 14 so that it can scrape away the concrete layer texture at the bottom of the concrete layer.

[0036] At this time, the automatic guided vehicle 1 is started. The automatic guided vehicle 1 moves along the 3D printed concrete layer, which drives the scraper 14 to move and scrape away the concrete texture of the concrete layer. The scraped concrete can flow down along the flow channel 17 on the side of the scraper 14 and drip into the collection box 15. The scraped concrete can be collected and processed in a unified manner to avoid excess concrete dripping onto the surface of the concrete layer below and causing concrete bulges when scraping away the concrete texture of the concrete layer. The flow channel 17 on the side of the scraper 14 can be used to guide the concrete and collect it into the collection box 15.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A 3D printed concrete layer texture elimination device, comprising an automated guided vehicle (1), characterized in that, The automatic guided vehicle (1) is rotatably mounted with a lead screw (5) on its top. An internal thread block (7) is threaded onto the lead screw (5). The automatic guided vehicle (1) is provided with a limiting mechanism for limiting the internal thread block (7) on its top. A scraper (14) is connected to the side of the internal thread block (7) via an electric telescopic rod (12). An installation groove (20) is provided on the side of the scraper (14) away from the electric telescopic rod (12) and at the bottom of the scraper (14). A distance sensor (21) is installed in the installation groove (20). Several flow channels (17) are provided on one side of the scraper (14). A collection box (15) is installed on the side of the scraper (14) near the flow channel (17). The bottom end of the flow channel (17) is located in the collection box (15).

2. The 3D printed concrete layer texture elimination device according to claim 1, characterized in that, The automated guided vehicle (1) is equipped with a mounting plate (2) on top, and a motor (4) is mounted on the top of the mounting plate (2). The output shaft of the motor (4) is connected to the lead screw (5).

3. The 3D printed concrete layer texture elimination device according to claim 2, characterized in that, The mounting plate (2) has a circular groove (3) on its top, and the motor (4) is installed in the circular groove (3). The mounting plate (2) has a PLC controller (16) on its top, and the distance sensor (21), the electric telescopic rod (12) and the motor (4) are all electrically connected to the PLC controller (16).

4. The 3D printed concrete layer veining elimination device according to claim 2, characterized in that, The limiting mechanism includes a slide rod (9) installed on the top of the mounting plate (2), a slide sleeve (8) is slidably sleeved on the slide rod (9), and the side of the internal thread block (7) away from the electric telescopic rod (12) is connected to the outer wall of the slide sleeve (8).

5. A 3D printed concrete layer veining elimination device according to claim 4, characterized in that, The top of the slide rod (9) is fitted with a top plate (6), and the bottom of the top plate (6) is fitted with a bearing (10). The top of the lead screw (5) is fitted with the inner ring of the bearing (10).

6. The 3D printed concrete layer texture elimination device according to claim 4, characterized in that, A connecting plate (11) is installed on the side of the internal threaded block (7) away from the sliding sleeve (8), and an electric telescopic rod (12) is installed on the side of the connecting plate (11) away from the internal threaded block (7).

7. The 3D printed concrete layer texture elimination device according to claim 1, characterized in that, A reinforcing plate (13) is installed on the side of the scraper (14) near the electric telescopic rod (12), and the end of the piston rod of the electric telescopic rod (12) is connected to the reinforcing plate (13).

8. The 3D printed concrete layer texture elimination device according to claim 6, characterized in that, A sleeve (18) is installed on the side of the connecting plate (11) away from the internal thread block (7). A guide rod (19) is slidably sleeved inside the sleeve (18). The end of the guide rod (19) is fixed to the side of the reinforcing plate (13) away from the scraper (14).

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