Building 3D printing device with cleaning spray head

Abstract

The utility model relates to a building 3D printing device with a cleaning spray head, and aims to solve the technical problems that a large amount of concrete is left in the spray head after the current building 3D printing device is used, the spray head is easy to block due to the coagulation characteristic of the concrete, the working efficiency is reduced, the service life of the spray head is influenced, and the cleaning is inconvenient. A portal frame is arranged at the top of the bottom plate, fixing blocks are arranged on the two sides of one end of the portal frame, and a first rod body and a second rod body are installed between the two fixing blocks. Furthermore, when the push disc resets, water can be automatically pumped into the needle cylinder, so that the residual concrete on the inner wall of the spray head can be conveniently cleaned next time, a worker does not need to manually add the cleaning water, and the labor intensity of the worker is reduced.

Description

Technical Field

[0001] The utility model relates to the field of building 3D printing devices, in particular to a building 3D printing device with a cleaning nozzle. Background Art

[0002] A construction 3D printer is a device used to print buildings or building components. It uses 3D printing technology to stack building materials layer by layer to construct a three-dimensional building.

[0003] After use, a large amount of concrete will remain in the nozzle of the existing construction 3D printer. Due to the coagulation characteristics of concrete, the nozzle is easily clogged, resulting in reduced work efficiency and affecting the life of the nozzle. It is also inconvenient to clean. Therefore, a new technical solution needs to be designed to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet the actual needs, and provide a construction 3D printing device with a cleaning nozzle to solve the technical problems that a large amount of concrete will remain in the nozzle of the current construction 3D printer after use. Due to the coagulation characteristics of concrete, the nozzle is easily blocked, resulting in reduced work efficiency, affecting the life of the nozzle, and being inconvenient to clean.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is as follows: designing a building 3D printing device with a cleaning nozzle, comprising a base plate, a gantry is arranged on the top of the base plate, fixed blocks are arranged on both sides of one end of the gantry, a first rod body and a second rod body are installed between the two fixed blocks, a connecting block is sleeved between the outer sides of the first rod body and the second rod body, and a nozzle is installed at the bottom of the connecting block; a circular bin is opened in the inner cavity of the connecting block, the circular bin is communicated with the nozzle, a push rod motor is installed on the top of the connecting block, and a sliding connection in the circular bin is provided. A push plate is connected, the driving end of the push rod motor is fixedly connected to the push plate, a syringe is installed in the circular bin above the push plate, a water outlet is opened at the bottom of the syringe, a first one-way valve is installed in the water outlet, the bottom of the water outlet is connected with a telescopic tube and the telescopic tube passes through the push plate, a piston is slidably connected in the syringe, an inverted J-shaped rod is fixedly connected to the top of the piston, one end of the inverted J-shaped rod is fixedly connected to the push plate, a water inlet pipe and a feed pipe are respectively passed through the two ends of the connecting block, the water inlet pipe is connected to the syringe, a second one-way valve is installed in the water inlet pipe, and the feed pipe passes through the push plate.

[0006] Preferably, both sides of the top of the base plate are provided with sliding grooves, and sliders are slidably connected in the two sliding grooves. The gantry is fixedly connected between the two sliders, and a first screw rod is rotatably connected between the two sides of the inner cavity of one of the sliding grooves, and the slider is threadedly sleeved on the outside of the first screw rod. A first servo motor is installed on one side of the base plate, and the driving end of the first servo motor is fixedly connected to the first screw rod.

[0007] Preferably, a group of fixed plates are installed on both sides of one end of the gantry, a second screw rod is rotatably connected between each group of the fixed plates, a second servo motor is installed on the top of each group of the fixed plates, the driving ends of the two second servo motors are respectively fixedly connected to the two second screw rods, the two fixed blocks are respectively threadedly sleeved on the outside of the two second screw rods, and the two fixed blocks are slidably fitted on the surface of the gantry.

[0008] Preferably, a third servo motor is installed at one end of one of the fixed blocks, the first rod body and the second rod body are respectively connected to the screw rod and the sliding rod, and the driving end of the third servo motor is fixedly connected to the first rod body.

[0009] Preferably, both sides of the inner cavity of the syringe above the piston are fixedly connected to limit blocks, and the bottoms of the two limit blocks are on the same horizontal line.

[0010] Preferably, a rubber sealing pad is fixedly connected to the outer side of the push plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model combines a push rod motor, a push plate, a water inlet pipe, a first one-way valve, a second one-way valve, a syringe, a piston, an inverted J-shaped rod, a telescopic tube and a water outlet. When the 3D printer is used, the push rod motor is started to push the push plate to move downward, so that the push plate enters the nozzle and can push and clean the residual concrete. At the same time, the inverted J-shaped rod drives the piston to move downward in the syringe, so that the first one-way valve, the second one-way valve and the telescopic tube can be used to spray water in the syringe into the nozzle, thereby improving the effect of the push plate in cleaning the residual concrete on the inner wall of the nozzle. When the push plate is reset, the inverted J-shaped rod can be used to pull the piston upward, so that the first one-way valve and the second one-way valve can be used to draw water connected to the water source in the feed pipe into the syringe, so that it is convenient to clean the residual concrete on the inner wall of the nozzle next time, so that there is no need for personnel to manually add cleaning water, thereby reducing the labor intensity of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2This is a cross-sectional view of the connection block of the utility model;

[0015] Figure 3 This is a cross-sectional view of the syringe of the utility model;

[0016] In the figure: 1. bottom plate; 11. gantry; 12. fixed block; 13. first rod body; 14. second rod body; 2. connecting block; 21. push rod motor; 22. nozzle; 23. water inlet pipe; 24. feed pipe; 25. circular bin; 26. push plate; 27. syringe; 28. second one-way valve; 29. ​​inverted J-shaped rod; 210. limit block; 211. piston; 212. telescopic tube; 213. water outlet; 214. first one-way valve; 3. slide; 31. first servo motor; 32. first screw rod; 33. slider; 34. third servo motor; 35. second screw rod; 36. fixed plate; 37. second servo motor; 4. rubber sealing pad. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Example 1: A building 3D printing device with a cleaning nozzle, see Figures 1 to 3, including a bottom plate 1, a gantry 11 is arranged on the top of the bottom plate 1, and fixed blocks 12 are arranged on both sides of one end of the gantry 11, a first rod body 13 and a second rod body 14 are installed between the two fixed blocks 12, a connecting block 2 is sleeved between the outer sides of the first rod body 13 and the second rod body 14, and a nozzle 22 is installed at the bottom of the connecting block 2; a circular bin 25 is opened in the inner cavity of the connecting block 2, and the circular bin 25 is connected to the nozzle 22, a push rod motor 21 is installed on the top of the connecting block 2, a push plate 26 is slidably connected in the circular bin 25, and the driving end of the push rod motor 21 is connected to the push plate 2 6 is fixedly connected, a syringe 27 is installed in the circular bin 25 above the push plate 26, a water outlet 213 is provided at the bottom of the syringe 27, a first one-way valve 214 is installed in the water outlet 213, the first one-way valve 214 can only discharge the water in the syringe 27 through the water outlet 213, the bottom of the water outlet 213 is connected with a telescopic tube 212 and the telescopic tube 212 passes through the push plate 26, a piston 211 is slidably connected in the syringe 27, the top of the piston 211 is fixedly connected with an inverted J-shaped rod 29, one end of the inverted J-shaped rod 29 is fixedly connected to the push plate 26, and the two ends of the connecting block 2 are connected to the push plate 26. The ends of the nozzle 22 are respectively penetrated by a water inlet pipe 23 and a feed pipe 24, the water inlet pipe 23 is connected to the syringe 27, a second one-way valve 28 is installed in the water inlet pipe 23, the second one-way valve 28 can only allow the water in the water inlet pipe 23 to enter the syringe 27, the feed pipe 24 penetrates the push plate 26, when the 3D printer is finished, the push rod motor 21 is started to push the push plate 26 to move downward, so that the push plate 26 enters the nozzle 22 to push and clean the residual concrete, and at the same time cooperates with the inverted J-shaped rod 29 to drive the piston 211 to move downward in the syringe 27, so as to cooperate with the first one-way valve 214, the second one-way valve 28 and the telescopic tube 212 can spray the water in the syringe 27 into the nozzle 22, thereby improving the effect of the push plate 26 in cleaning the residual concrete on the inner wall of the nozzle 22, and when the push plate 26 is reset, the inverted J-shaped rod can pull the piston 211 upward, so that the first one-way valve 214 and the second one-way valve 28 can be used to draw the water connected to the water source of the feed pipe 24 into the syringe 27, so as to facilitate the cleaning of the residual concrete on the inner wall of the nozzle 22 next time, so that there is no need for personnel to manually add cleaning water, thereby reducing the labor intensity of personnel.

[0019] For details, see Figure 1, both sides of the top of the bottom plate 1 are provided with slide grooves 3, and sliders 33 are slidably connected in the two slide grooves 3. The gantry 11 is fixedly connected between the two sliders 33, and a first screw rod 32 is rotatably connected between the two sides of the inner cavity of one of the slide grooves 3, and the slider 33 is threadedly sleeved on the outside of the first screw rod 32. A first servo motor 31 is installed on one side of the bottom plate 1, and the driving end of the first servo motor 31 is fixedly connected to the first screw rod 32. A group of fixed plates 36 are installed on both sides of one end of the gantry 11, and a second screw rod 35 is rotatably connected between each group of fixed plates 36. A second servo motor 37 is installed on the top of each group of fixed plates 36, and the driving ends of the two second servo motors 37 are respectively fixedly connected to the two second screw rods 35 Then, the two fixed blocks 12 are respectively threadedly sleeved on the outside of the two second screw rods 35, and the two fixed blocks 12 are slidably fitted on the surface of the gantry 11, and a third servo motor 34 is installed at one end of one of the fixed blocks 12, and the first rod 13 and the second rod 14 are respectively connected to the screw rod and the sliding rod, and the driving end of the third servo motor 34 is fixedly connected to the first rod 13, and the gantry 11 can be driven to move horizontally on the base plate 1 by starting the first servo motor 31, and then the height of the nozzle 22 can be adjusted by starting the second servo motor 37, and then the third servo motor 34 can be driven to move horizontally on the first rod 13 and the second rod 14, so that the printing position of the nozzle 22 can be adjusted at will.

[0020] For further information, see Figure 3 The limiting blocks 210 are fixedly connected to both sides of the inner cavity of the syringe 27 above the piston 211, and the bottoms of the two limiting blocks 210 are on the same horizontal line. Through the setting of the limiting blocks 210, the reset piston 211 can be limited, thereby preventing the piston 211 from being separated from the syringe 27 and unable to extract the cleaning water when the piston 211 is reset.

[0021] It is worth noting that see Figure 2 A rubber sealing pad 4 is fixedly connected to the outer side of the push plate 26. The rubber sealing pad 4 can increase the sealing performance of the connection between the push plate 26 and the inner wall of the circular bin 25 and the nozzle 22, thereby preventing concrete from entering the top of the push plate 26 through the gap and affecting the resetting of the push plate 26.

[0022] In addition, the components designed in the present invention are all universal standard parts or components known to technical personnel in the field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in the field, and there is no need to elaborate. The content protected by the present invention does not involve improvements to internal structures and methods.

[0023] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A building 3D printing device with a cleaning nozzle, comprising a base plate (1), characterized in that: A gantry (11) is arranged on the top of the bottom plate (1), and fixing blocks (12) are arranged on both sides of one end of the gantry (11), a first rod body (13) and a second rod body (14) are installed between the two fixing blocks (12), a connecting block (2) is sleeved between the outer sides of the first rod body (13) and the second rod body (14), and a nozzle (22) is installed at the bottom of the connecting block (2); The inner cavity of the connection block (2) is provided with a circular bin (25), the circular bin (25) is communicated with the nozzle (22), a push rod motor (21) is installed on the top of the connection block (2), a push plate (26) is slidably connected in the circular bin (25), a driving end of the push rod motor (21) is fixedly connected to the push plate (26), a syringe (27) is installed in the circular bin (25) above the push plate (26), a water outlet (213) is provided at the bottom of the syringe (27), a first one-way valve (214) is installed in the water outlet (213), and the water outlet (213) is provided with a first one-way valve (214). ) is connected to the bottom of the syringe (27) with a telescopic tube (212) and the telescopic tube (212) passes through the push plate (26); a piston (211) is slidably connected in the syringe (27); an inverted J-shaped rod (29) is fixedly connected to the top of the piston (211); one end of the inverted J-shaped rod (29) is fixedly connected to the push plate (26); a water inlet pipe (23) and a feed pipe (24) are respectively passed through the two ends of the connecting block (2); the water inlet pipe (23) is connected to the syringe (27); a second one-way valve (28) is installed in the water inlet pipe (23); and the feed pipe (24) passes through the push plate (26).

2. A building 3D printing device with a cleaning nozzle (22) as claimed in claim 1, characterized in that: Both sides of the top of the base plate (1) are provided with sliding grooves (3), and sliders (33) are slidably connected in the two sliding grooves (3). The gantry (11) is fixedly connected between the two sliders (33), and a first screw rod (32) is rotatably connected between the two sides of the inner cavity of one of the sliding grooves (3), and the slider (33) is threadedly sleeved on the outer side of the first screw rod (32). A first servo motor (31) is installed on one side of the base plate (1), and the driving end of the first servo motor (31) is fixedly connected to the first screw rod (32).

3. The architectural 3D printing device with a cleaning nozzle (22) as claimed in claim 1, characterized in that: A group of fixing plates (36) are installed on both sides of one end of the gantry (11), and a second screw rod (35) is rotatably connected between each group of fixing plates (36). A second servo motor (37) is installed on the top of each group of fixing plates (36). The driving ends of the two second servo motors (37) are respectively fixedly connected to the two second screw rods (35). The two fixing blocks (12) are respectively threadedly sleeved on the outer sides of the two second screw rods (35), and the two fixing blocks (12) are slidably fitted on the surface of the gantry (11).

4. The architectural 3D printing device with a cleaning nozzle (22) according to claim 1, characterized in that: A third servo motor (34) is installed at one end of one of the fixed blocks (12); the first rod body (13) and the second rod body (14) are respectively connected to a screw rod and a sliding rod; and a driving end of the third servo motor (34) is fixedly connected to the first rod body (13).

5. The architectural 3D printing device with a cleaning nozzle (22) according to claim 1, characterized in that: Both sides of the inner cavity of the syringe (27) above the piston (211) are fixedly connected to limit blocks (210), and the bottoms of the two limit blocks (210) are on the same horizontal line.

6. The architectural 3D printing device with a cleaning nozzle (22) according to claim 1, characterized in that: A rubber sealing pad (4) is fixedly connected to the outer side of the push plate (26).

Images