A feeding method for concrete printing

Abstract

The present invention relates to a feeding method for concrete printing, comprising a feed port, a liquid material bin, a mixer, a plunger pump, a control module and a box shell for fixed support; the mixer comprises a motor and a mixing box, the motor is connected to the mixing box through a rotating shaft, the feed port and the liquid material bin are both connected to the mixing box, the plunger pump comprises a hydraulic box and a plunger cavity, the hydraulic box is connected to the plunger cavity, the mixing box is connected to the plunger cavity through a pipeline, and the outlet of the plunger cavity is connected to a discharge pipeline; a first temperature sensor and a viscosity sensor are fixed in the mixing box, the first temperature sensor and the viscosity sensor are both connected to the control module, a second temperature sensor and a pressure sensor are provided at the connection between the plunger cavity and the discharge pipeline, and the second temperature sensor and the pressure sensor are connected to the control module. Compared with the prior art, the present invention has the advantages of high automation and high reliability.

Description

Technical Field

[0001] The invention relates to the technical field of civil engineering, and in particular to a feeding method for concrete printing. Background Art

[0002] So far, the domestic construction industry is still a traditional industry that is mainly labor-intensive. When digitalization and informatization have become inevitable and have profoundly changed other industries, the construction industry still maintains the traditional rough construction mode. After years of development, 3D printing technology has been widely used in all walks of life. In recent years, given the digital design, intelligent control and additive construction attributes of 3D printing technology itself, it is very consistent with the technical development direction of the domestic construction industry, so it has been deeply studied and rapidly developed.

[0003] 3D printing technology has become a cutting-edge topic that researchers and engineering practitioners in related fields have focused on again. In general, 3D printing technology and equipment have become an important direction for the development of new technologies in the construction industry. However, the current 3D printing process and equipment using concrete as printing material adopts the technical solution of concrete materials with established material properties, which makes the 3D printing process and equipment extremely limited. The configuration time of printing materials is not commensurate with the effective working time of 3D printing equipment, and the ability of 3D printing equipment to mechanize construction and work continuously cannot be fully utilized and maximized. Summary of the invention

[0004] The purpose of the present invention is to provide a feeding method for concrete printing in order to overcome the defects of the above-mentioned prior art that the concrete material with predetermined properties is used, so that the configuration time of the printing material is not commensurate with the effective working time of the 3D printing equipment, and the mechanized construction capacity and continuous working capacity of the 3D printing equipment cannot be fully utilized and maximized.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A feeding method for concrete printing, comprising a feeding port, a liquid material bin, a mixer, a plunger pump, a control module and a box shell for fixing support;

[0007] The mixer comprises a motor and a mixing box, wherein the motor is connected to the mixing box via a rotating shaft, the feed port and the liquid material bin are both connected to the mixing box, the plunger pump comprises a hydraulic box and a plunger cavity, the hydraulic box is connected to the plunger cavity, the mixing box is connected to the plunger cavity via a pipeline, a first automatic gate is provided between the mixing box and the plunger cavity, the first automatic gate is connected to a control center, and the outlet of the plunger cavity is connected to a discharge pipeline;

[0008] A first temperature sensor and a viscosity sensor are fixed in the mixing box, and the first temperature sensor and the viscosity sensor are both connected to the control module. A second temperature sensor and a pressure sensor are provided at the connection between the plunger cavity and the discharge pipe, and the second temperature sensor and the pressure sensor are connected to the control module.

[0009] Preferably, the liquid material bin is a rectangular parallelepiped structure, and the liquid material bin includes a plurality of independent chambers, each chamber is provided with an inlet and an outlet, and the outlets are connected to the mixing box through pipelines.

[0010] Preferably, an electromagnetic valve and a flow meter are provided in the pipeline connecting the chamber outlet to the mixing box, and the electromagnetic valve and the flow meter are both connected to the control module.

[0011] Preferably, the feed inlet and the liquid material bin are both located above the stirring box, and the stirring box is located above the plunger pump.

[0012] Preferably, a torque sensor is provided on the rotating shaft of the motor connected to the mixing box, and the torque sensor is connected to the control module.

[0013] Preferably, a pressure sensor is provided in the hydraulic box, and the pressure sensor is connected to the control module.

[0014] Preferably, the box shell is a rectangular parallelepiped structure.

[0015] Preferably, the first automatic gate is a pull-out type automatic gate.

[0016] Preferably, the upper opening of the feed port is larger than the lower opening, the interior of the feed port is a quadrangular pyramid structure, and the lower end of the feed port is connected to a stirring box.

[0017] Preferably, a second automatic gate is provided between the feed port and the mixing box, and the second automatic gate is connected to the control module.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] (1) In this solution, during the concrete mixing process, the first temperature sensor and viscosity sensor in the mixing box monitor the state of the concrete in the mixing box, and transmit the detected data such as the viscosity of the concrete and the degree of hydration reaction to the control module, and the control module determines whether the current state of the concrete meets the pumping conditions. When the concrete does not meet the pumping conditions, the mixing box continues to stir or additives are added to the mixing box through the liquid material bin to adjust the state of the concrete until the control module determines that the state of the concrete meets the pumping conditions and performs subsequent operations. While the plunger pump is conveying concrete, the sensor monitors the state and performance of the conveyed concrete in real time, and transmits the detection results to the control module, thereby optimizing and adjusting the mixer working mode and the type and amount of additives required. This solution ensures the quality of printed concrete and improves the quality of printing by real-time monitoring, feedback and adjustment of the state and performance of concrete throughout the process, and the resulting printed structure is safer.

[0020] (2) This solution installs electromagnetic valves and flow meters at the connection points between each chamber of the liquid material bin and the mixing box to detect the flow rate when the liquid material bin is added to the mixing box. Then, the control module controls the amount of material added by adjusting the electromagnetic valve. By adding material to the concrete more accurately, the quality of the delivered concrete is guaranteed, and the reliability of the structure obtained by concrete printing is further guaranteed, thereby improving the degree of automation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural connection block diagram of the feeding device provided by the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] Example 1

[0029] like Figure 1 As shown, a feeding method for concrete printing includes a feeding port, a liquid material bin, a mixer, a plunger pump, a control module and a box shell for fixing support;

[0030] The mixer includes a motor and a mixing box, the motor is connected to the mixing box through a rotating shaft, the feed port and the liquid material bin are both connected to the mixing box, the plunger pump includes a hydraulic box and a plunger cavity, the hydraulic box is connected to the plunger cavity, the mixing box is connected to the plunger cavity through a pipeline, a first automatic gate is provided between the mixing box and the plunger cavity, the first automatic gate is connected to the control center, and the outlet of the plunger cavity is connected to a discharge pipeline;

[0031] A first temperature sensor and a viscosity sensor are fixed in the mixing box, both of which are connected to the control module. A second temperature sensor and a pressure sensor are provided at the connection between the plunger cavity and the discharge pipe, and the second temperature sensor and the pressure sensor are connected to the control module.

[0032] Working principle: Put the concrete material into the mixing box through the feed port, start the mixing box to mix the concrete material. During the mixing process, the first temperature sensor and viscosity sensor in the mixing box monitor the state of the concrete in the mixing box, and transmit the detected data such as the viscosity of the concrete and the degree of hydration reaction to the control module. The control module determines whether the current state of the concrete meets the pumping conditions. When the concrete does not meet the pumping conditions, the mixing box continues to mix or add additives to the mixing box through the liquid material bin to adjust the state of the concrete until the control module determines that the state of the concrete meets the pumping conditions, opens the first automatic gate, and transports the concrete to the plunger pump. At the same time, the plunger pump and the second temperature sensor and pressure sensor are started to transport the concrete to the external equipment. At the same time, the state and performance of the transported concrete are detected, and the test results are transmitted to the control module, thereby optimizing and adjusting the mixer working mode and the actual addition and quantity of the required additives.

[0033] This solution is to put the concrete material into the mixing box through the feed port, start the mixing box to mix the concrete material, open the first automatic gate after mixing, the concrete enters the plunger pump, and the mixed concrete is transported to the subsequent external equipment through the plunger pump for subsequent printing operations. At the same time, during the mixing of concrete, the first temperature sensor and viscosity sensor in the mixing box monitor the state of the concrete in the mixing box, and transmit the detected data such as the viscosity of the concrete and the degree of hydration reaction to the control module, and the control module determines whether the current state of the concrete meets the pumping conditions. When the concrete does not meet the pumping conditions, the mixing box continues to stir or add additives to the mixing box through the liquid material bin to adjust the state of the concrete until the control module determines that the state of the concrete meets the pumping conditions and performs subsequent operations. While the plunger pump is transporting concrete, the sensor monitors the state and performance of the transported concrete in real time, and transmits the detection results to the control module, thereby optimizing and adjusting the mixer working mode and the actual addition and quantity of the required additives. This solution ensures the quality of printed concrete and improves the quality of printing by real-time monitoring, feedback and adjustment of the state and performance of concrete throughout the process, and the resulting printed structure is safer.

[0034] The liquid material bin is a rectangular parallelepiped structure, and includes a plurality of independent chambers, each of which is provided with an inlet and an outlet, and the outlets are connected to the mixing box through pipelines.

[0035] An electromagnetic valve and a flow meter are arranged in a pipeline connecting the chamber outlet to the mixing box, and both the electromagnetic valve and the flow meter are connected to the control module.

[0036] This solution sets electromagnetic valves and flow meters at the connection points between each chamber of the liquid material bin and the mixing box to detect the flow rate when the liquid material bin is added to the mixing box. The control module then controls the amount of material added by adjusting the electromagnetic valve. By adding material to the concrete more accurately, the quality of the delivered concrete is guaranteed, and the reliability of the structure obtained by concrete printing is further guaranteed, thereby improving the degree of automation of the device.

[0037] The feed inlet and the liquid material bin are both located above the mixing box, and the mixing box is located above the plunger pump.

[0038] This solution places the components with main functions such as concrete mixing and pumping functions in sequence from top to bottom, and configures the feeding device as a vertical three-dimensional integrated device. The weight of the material itself can be used to achieve transfer between different components, saving unnecessary energy consumed in material transmission during the concrete production process. The device is highly energy-saving and economical.

[0039] A torque sensor is arranged on the rotating shaft of the motor connected to the mixing box, and the torque sensor is connected to the control module.

[0040] A pressure sensor is provided in the hydraulic box, and the pressure sensor is connected to the control module. In this embodiment, the prepared concrete is transported and transferred by driving the plunger cavity through the hydraulic box, and the hydraulic pressure in the hydraulic box is detected by the pressure sensor during the driving process to ensure that the equipment is in a safe operating condition.

[0041] The box shell is a rectangular parallelepiped structure. The first automatic gate is a pull-out automatic gate.

[0042] The upper opening of the feed inlet is larger than the lower opening, the interior of the feed inlet is a quadrangular cone structure, and the lower end of the feed inlet is connected to the stirring box.

[0043] A second automatic gate is arranged between the feed inlet and the mixing box, and the second automatic gate is connected to the control module.

[0044] This solution sets a second automatic gate between the mixing box and the feed port. After the concrete material is put into the mixing box through the feed port, the second automatic gate is closed to mix the concrete through the mixing box, thereby preventing the concrete from being thrown out of the mixing box during the mixing process, thereby improving the safety and reliability of the device during operation.

[0045] In this embodiment, the plunger pump has a bidirectional extrusion working mode, which can continuously and uninterruptedly supply the concrete materials required for 3D printing construction operations.

[0046] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A feeding method for concrete printing, characterized in that: It includes a feed inlet, a liquid material silo, a mixer, a plunger pump, a control module and a box shell for fixing and supporting; The mixer comprises a motor and a mixing box, wherein the motor is connected to the mixing box via a rotating shaft, the feed port and the liquid material bin are both connected to the mixing box, the plunger pump comprises a hydraulic box and a plunger cavity, the hydraulic box is connected to the plunger cavity, the mixing box is connected to the plunger cavity via a pipeline, a first automatic gate is provided between the mixing box and the plunger cavity, the first automatic gate is connected to a control center, and the outlet of the plunger cavity is connected to a discharge pipeline; A first temperature sensor and a viscosity sensor are fixed in the mixing box, and the first temperature sensor and the viscosity sensor are both connected to the control module. A second temperature sensor and a pressure sensor are provided at the connection between the plunger cavity and the discharge pipe, and the second temperature sensor and the pressure sensor are connected to the control module. Put the concrete material into the mixing box through the feed port, start the mixing box to mix the concrete material, and during the mixing process, the first temperature sensor and the viscosity sensor in the mixing box monitor the state of the concrete in the mixing box, and transmit the detected viscosity and hydration reaction degree of the concrete to the control module, and the control module determines whether the current state of the concrete meets the pumping conditions; When the concrete is not ready for pumping, the mixing tank continues to mix or additives are added to the mixing tank through the liquid material bin until the control module determines that the concrete is ready for pumping; When the concrete is ready for pumping, the first automatic gate is opened to transport the concrete to the plunger pump. The plunger pump and the second temperature sensor and pressure sensor are started at the same time to transport the concrete to external equipment. The state and performance of the transported concrete are detected and the detection results are transmitted to the control module. The control module optimizes and adjusts the mixer working mode and the timing and quantity of adding the required additives according to the detection results.

2. A feeding method for concrete printing according to claim 1, characterized in that: The liquid material bin is a rectangular parallelepiped structure and includes a plurality of independent chambers. Each chamber is provided with an inlet and an outlet, and the outlets are connected to the mixing box through pipelines.

3. A feeding method for concrete printing according to claim 2, characterized in that: An electromagnetic valve and a flow meter are arranged in the pipeline connecting the chamber outlet to the mixing box, and both the electromagnetic valve and the flow meter are connected to the control module.

4. A feeding method for concrete printing according to claim 1, characterized in that: The feed inlet and the liquid material bin are both located above the stirring box, and the stirring box is located above the plunger pump.

5. The feeding method for concrete printing according to claim 1, characterized in that: A torque sensor is provided on the rotating shaft of the motor connected to the stirring box, and the torque sensor is connected to the control module.

6. A feeding method for concrete printing according to claim 1, characterized in that: A pressure sensor is arranged in the hydraulic box, and the pressure sensor is connected to the control module.

7. A feeding method for concrete printing according to claim 1, characterized in that: The box shell is a rectangular parallelepiped structure.

8. The feeding method for concrete printing according to claim 1, characterized in that: The first automatic gate is a pull-out automatic gate.

9. The feeding method for concrete printing according to claim 1, characterized in that: The upper opening of the feed port is larger than the lower opening, the interior of the feed port is a quadrangular pyramid structure, and the lower end of the feed port is connected to a stirring box.

10. A feeding method for concrete printing according to claim 9, characterized in that: A second automatic gate is provided between the feed port and the mixing box, and the second automatic gate is connected to the control module.

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