Pottery clay 3D printer extrusion device capable of achieving gradient material printing

Abstract

The utility model discloses a clay 3D printer extrusion device capable of realizing gradient material printing, and relates to the technical field of 3D printing, the clay 3D printer extrusion device comprises a main material pipe, the top of the main material pipe is communicated with a feeding shaft sleeve, the top of the feeding shaft sleeve is communicated with a first feeding pipe, a second feeding pipe and a third feeding pipe through pipe joints, and the bottom end of the main material pipe is communicated with a nozzle; an opening and closing assembly capable of controlling the discharging amount is arranged between the main material pipe and the nozzle, by arranging the multiple feeding pipes, clay materials of different types or characteristics can be mixed according to needs, the types and concentration gradient changes of the materials can be accurately controlled, the high separation efficiency of the materials is achieved, the multiple materials are stirred and mixed through the stirring and discharging screw rod, and the stirring and discharging efficiency of the materials is improved. Different materials can be fully fused, the mixing uniformity of the materials is improved, it is ensured that the material composition and performance of all parts in a product are relatively consistent, the quality and stability of the product are improved, high singleness of the material composition and performance of the product is avoided, and gradient distribution of the material characteristics is achieved.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, specifically to an extrusion device for a clay 3D printer capable of printing gradient materials. Background Technology

[0002] In the rapid development of modern manufacturing and materials science, 3D printing technology, as a revolutionary manufacturing technology, is profoundly changing the production mode and product form of traditional manufacturing. Among them, clay 3D printing technology, with its unique advantages, shows broad application prospects in fields such as cultural and artistic creation, architectural decoration, and industrial prototyping. However, clay 3D printing technology still faces many challenges in terms of material application, which seriously restricts the development and application of its functional and personalized products.

[0003] Currently, clay 3D printing technology mainly relies on printing with a single material or a simple mixture of materials. While this method simplifies the printing process and reduces equipment complexity to some extent, the printed products exhibit a high degree of uniformity in material composition and properties. Specifically, the material composition and physicochemical properties of different parts within the product lack variation, making it impossible to achieve a gradient distribution of material properties. This limitation severely restricts the functional performance of the products, making it difficult to meet the complex and ever-changing practical application requirements. Products printed with a single material cannot achieve precise performance matching, thus affecting the overall performance and usability of the product. Utility Model Content

[0004] The purpose of this invention is to provide an extrusion device for a clay 3D printer that can achieve gradient material printing, in order to solve the problem that most existing extrusion devices use single material extrusion or multi-material switching extrusion, which makes it difficult to achieve precise mixing and gradient changes of multiple materials.

[0005] An extrusion device for a clay 3D printer capable of printing gradient materials includes a main material tube, a feeding bushing connected to the top of the main material tube, a first feed pipe, a second feed pipe and a third feed pipe connected to the top of the feeding bushing via a pipe joint, a nozzle connected to the bottom of the main material tube, and an opening and closing component for controlling the output amount provided between the main material tube and the nozzle.

[0006] Preferably, the top of the feeding bushing is provided with a support block, the top of the support block is fixedly provided with a motor, the output end of the motor is connected to a stirring and discharging screw through a coupling, the stirring and discharging screw extends into the interior of the main material pipe, and the top of the support block is provided with a bearing sleeve located outside the sealing ring.

[0007] Preferably, a sealing ring is provided between the bearing sleeve and the support block.

[0008] Preferably, a fastening ring is provided between the main material tube and the feeding bushing.

[0009] Preferably, the main material pipe has a water pipe connected to its side wall, and the end of the water pipe is provided with a connector. The top of the connector is provided with an exhaust knob on one side and a water pipe joint on the other side. The water pipe is provided with a filter.

[0010] Preferably, the opening and closing assembly includes a mounting component located at the end of the main material pipe. The mounting component has a discharge port that communicates with the nozzle. The top of the mounting component has multiple blade slide rail grooves that are circumferentially distributed around the discharge port. Opening and closing blades are slidably fitted in each of the blade slide rail grooves.

[0011] Preferably, the outer side of the main material pipe near the nozzle is provided with a heat insulation layer.

[0012] The advantages of this utility model are as follows: This utility model provides an extrusion device for a clay 3D printer capable of gradient material printing. By setting multiple feed pipes, it can mix different types or properties of clay materials as needed, precisely controlling the type and concentration gradient of materials to achieve high material separation efficiency. The stirring and discharging screw mixes multiple materials, ensuring thorough fusion and improved mixing uniformity. This ensures relatively consistent material composition and properties throughout the product, reducing product defects caused by uneven mixing, improving product quality and stability, avoiding highly uniform material composition and properties, and achieving a gradient distribution of material characteristics. The opening and closing components allow for precise control of the discharge port size, enabling precise control of the material output. This results in high precision and controllability, allowing the device to meet the requirements of different printing processes and product shapes, improving printing accuracy and flexibility, reducing material waste, and lowering production costs. Attached Figure Description

[0013] Figure 1 , 2 These are schematic diagrams of the structure of this utility model from different perspectives.

[0014] Figure 3 This is a cross-sectional view of the present invention.

[0015] Figure 4 This is a schematic diagram of the opening and closing component in this utility model.

[0016] Among them, 100, motor; 101, first feed pipe; 102, second feed pipe; 103, third feed pipe; 104, bearing sleeve; 105, feeding bushing; 106, main feed pipe; 107, insulation layer; 108, nozzle; 109, pipe joint; 110, support block; 111, fastening ring; 112, coupling; 113, sealing ring; 114, stirring and discharging screw; 200, opening and closing assembly; 201, mounting part; 202, blade slide rail groove; 203, discharge port; 204, opening and closing blade; 300, connector; 301, exhaust knob; 302, water pipe joint; 303, water pipe; 304, filter. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] like Figures 1 to 4 As shown, a clay 3D printer extrusion device capable of printing gradient materials includes a main material tube 106. The top of the main material tube 106 is connected to a feeding bushing 105. The top of the feeding bushing 105 is connected to a first feed pipe 101, a second feed pipe 102, and a third feed pipe 103 via a pipe connector 109. The bottom of the main material tube 106 is connected to a nozzle 108. An opening and closing component 200 capable of controlling the output amount is provided between the main material tube 106 and the nozzle 108.

[0019] In this embodiment, a support block 110 is provided on the top of the feeding bushing 105, and a motor 100 is fixedly provided on the top of the support block 110. The output end of the motor 100 is connected to a stirring and discharging screw 114 through a coupling 112. The stirring and discharging screw 114 extends into the interior of the main material pipe 106. A bearing sleeve 104 is provided on the top of the support block 110 around the sealing ring 113.

[0020] Different types or properties of clay materials are fed into the first feed pipe 101, the second feed pipe 102, and the third feed pipe 103 respectively, according to the requirements. They are connected to the top of the feeding sleeve 105 through the pipe joint 109. When the material enters the feeding sleeve 105, the motor 100 is started. Its output end drives the stirring and discharging screw 114 to rotate through the coupling 112. During the rotation, the stirring and discharging screw 114 stirs and mixes the various materials that enter, so that the different materials are initially fused together. The mixed material is then pushed downward into the main feed pipe 106. Under the push of the stirring and discharging screw 114, the mixed material moves downward along the main feed pipe 106 for extrusion.

[0021] By setting multiple feed pipes, different types or properties of clay materials can be mixed as needed. The motor 100 drives the stirring and discharging screw 114 to rotate, stirring and mixing the various materials entering the feeding sleeve 105. This allows different materials to be fully integrated, improving the uniformity of material mixing, ensuring that the material composition and properties of each part inside the product are relatively consistent, reducing product defects caused by uneven material mixing, improving the quality and stability of the product, avoiding a high degree of uniformity in the material composition and properties of the product, and thus achieving a gradient distribution of material properties.

[0022] In this embodiment, a sealing ring 113 is provided between the bearing sleeve 104 and the support block 110.

[0023] By setting the sealing ring 113, material leakage can be prevented, and the sealing performance and reliability of the device can be enhanced.

[0024] In this embodiment, a fastening ring 111 is provided between the main material tube 106 and the feeding bushing 105.

[0025] By setting a fastening ring 111, the operator can quickly disassemble the main material pipe 106, which enables quick cleaning of the main material pipe 106 and the mixing and discharging screw 114, thus enhancing the convenience and cleanability of the device.

[0026] In this embodiment, a water pipe 303 is connected to the side wall of the main material pipe 106. A connector 300 is provided at the end of the water pipe 303. A venting knob 301 is provided on one side of the connector 300 and a water pipe connector 302 is provided on the other side. A filter 304 is provided on the water pipe 303.

[0027] An external water source or cooling medium is connected via water pipe connector 302. The temperature of the material in the main feed pipe 106 is regulated according to the material characteristics and printing requirements. When the material temperature is too high, cooling water can be connected for cooling; when a certain temperature needs to be maintained, a constant temperature medium can be connected. Filter 304 filters out impurities in the water, preventing them from entering the main feed pipe 106 and affecting material quality and printing results. The vent knob 301 is used to expel air from the water pipe 303, ensuring smooth water flow.

[0028] In this embodiment, the opening and closing assembly 200 includes a mounting member 201 disposed at the end of the main material tube 106. The mounting member 201 has a discharge port 203 communicating with the nozzle 108. The top of the mounting member 201 has a plurality of blade slide rail grooves 202. The blade slide rail grooves 202 are distributed circumferentially around the discharge port 203. Opening and closing blades 204 are slidably fitted in each blade slide rail groove 202.

[0029] The opening and closing assembly 200 can precisely control the size of the discharge port 203 by sliding the opening and closing blades 204 in the blade slide rail groove 202, thereby achieving precise control of the material discharge amount, realizing high precision and high controllability of the device, enabling the device to meet the requirements of different printing processes and product shapes, improving printing accuracy and flexibility, reducing material waste, and lowering production costs.

[0030] In this embodiment, a heat insulation layer 107 is provided on the outer side of the main material pipe 106 near the nozzle 108.

[0031] Setting up the insulation layer 107 can control the temperature and humidity of the material, ensure the plasticity and viscosity of the clay, ensure good printing and forming performance, effectively reduce heat loss of the material during the transportation process, ensure that the material maintains good fluidity and plasticity at a suitable temperature, and avoid changes in material properties or blockage of pipes due to temperature changes.

[0032] Working process and principle: When using this device, different types or properties of clay materials are fed into the first feed pipe 101, the second feed pipe 102, and the third feed pipe 103 respectively, according to the requirements. They are connected to the top of the feeding sleeve 105 through the pipe joint 109. When the material enters the feeding sleeve 105, the motor 100 is started, and its output end drives the stirring and discharging screw 114 to rotate through the coupling 112. During the rotation, the stirring and discharging screw 114 stirs and mixes the various materials that have entered, so that the different materials are initially fused together, and pushes the mixed material downward into the main material pipe 106. Under the push of the stirring and discharging screw 114, the mixed material moves downward along the main material pipe 106. The side wall of the main material pipe 106 is connected to a water pipe 303, which is connected to an external water source or cooling medium through the water pipe joint 302. The temperature of the material in the main material pipe 106 is adjusted according to the material characteristics and printing requirements. For example, when the material temperature is too high, cooling water can be connected to lower it; when a certain temperature needs to be maintained, a constant temperature medium can be connected. Filter 304 can filter out impurities in the water, preventing impurities from entering the main feed pipe 106 and affecting material quality and printing results. The vent knob 301 can be used to expel air from the water pipe 303, ensuring smooth water flow. After the material reaches the bottom of the main material pipe 106, it enters the opening and closing assembly 200. By controlling the sliding position of the opening and closing blades 204 in the blade slide groove 202, the size of the discharge port 203 can be adjusted, thereby controlling the material output, reducing material waste, and lowering production costs. When a larger output is required, the opening and closing blades 204 expand outward, increasing the opening area of ​​the discharge port 203; when a smaller output is required, the opening and closing blades 204 contract inward, reducing the opening area of ​​the discharge port 203, to meet the requirements of different printing processes and product shapes. After the material output is controlled by the opening and closing assembly 200, it is extruded from the nozzle 108 and stacked and shaped according to the preset 3D printing path. By controlling the proportion and mixing degree of different materials during the feeding stage, adjusting the material temperature during the conveying stage, and controlling the output during the discharge stage, it is possible to print clay products with gradient material characteristics.

[0033] As is known from common technical knowledge, this utility model can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

Claims

1. An extrusion device for a clay 3D printer capable of printing gradient materials, characterized in that: The system includes a main material pipe (106), the top of which is connected to a feeding bushing (105). The top of the feeding bushing (105) is connected to a first feed pipe (101), a second feed pipe (102), and a third feed pipe (103) via a pipe joint (109). The bottom of the main material pipe (106) is connected to a nozzle (108). An opening and closing assembly (200) capable of controlling the output is provided between the main material pipe (106) and the nozzle (108).

2. The clay 3D printer extrusion device for gradient material printing according to claim 1, characterized in that: The top of the feeding bushing (105) is provided with a support block (110), and the top of the support block (110) is fixedly provided with a motor (100). The output end of the motor (100) is connected to a stirring and discharging screw (114) through a coupling (112). The stirring and discharging screw (114) extends into the main material pipe (106). The top of the support block (110) is provided with a bearing sleeve (104) around the sealing ring (113).

3. The clay 3D printer extrusion device for gradient material printing according to claim 2, characterized in that: A sealing ring (113) is provided between the bearing sleeve (104) and the support block (110).

4. The clay 3D printer extrusion device for gradient material printing according to claim 2, characterized in that: A fastening ring (111) is provided between the main material tube (106) and the feeding bushing (105).

5. The clay 3D printer extrusion device for gradient material printing according to claim 1, characterized in that: The main material pipe (106) has a water pipe (303) connected to its side wall. The end of the water pipe (303) is provided with a connector (300). The connector (300) has an exhaust knob (301) on one side and a water pipe joint (302) on the other side. The water pipe (303) is provided with a filter (304).

6. The clay 3D printer extrusion device for gradient material printing according to claim 1, characterized in that: The opening and closing assembly (200) includes a mounting component (201) located at the end of the main material pipe (106). The mounting component (201) has a discharge port (203) that communicates with the nozzle (108). The top of the mounting component (201) has multiple blade slide rail grooves (202). The blade slide rail grooves (202) are distributed circumferentially around the discharge port (203). Opening and closing blades (204) are slidably fitted in each blade slide rail groove (202).

7. The clay 3D printer extrusion device for gradient material printing according to claim 1, characterized in that: The outer side of the main material pipe (106) near the nozzle (108) is provided with a heat insulation layer (107).

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