3D model printing spray head for building materials

Abstract

The utility model discloses a 3D model printing spray head for building materials, and relates to the field of 3D printers, the 3D model printing spray head comprises a material storage upper shell, a sealing cover is fixedly installed at the top of the material storage upper shell, a stirring motor is fixedly installed at the top of the sealing cover, a stirring rod is fixedly installed at the bottom of the sealing cover, and the stirring rod is fixedly installed at the bottom of the sealing cover. The top of the stirring rod is connected with the output end of the stirring motor, and meanwhile the stirring rod is located in the upper storage shell cavity. The upper portion and the lower portion of the stirring rod are each sleeved with a linkage rod, and the two sides of the two linkage rods are correspondingly installed on the upper portions and the lower portions of one sides of the two scraping plates respectively. A replacing mechanism is arranged below the upper storage shell, and a nozzle of the 3D model printing spray head is conveniently replaced through the replacing mechanism. A heating mechanism is arranged on the outer side of the upper storage shell, and heating is conducted through the heating mechanism. And the phenomena that materials in the printing nozzle are frozen in low-temperature environments such as winter, so that the printing nozzle is difficult to discharge normally, and the smoothness of the discharged materials of the printing nozzle and the uniformity of the sprayed materials are influenced are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printers, in particular to a nozzle for printing 3D models of building materials. Background Art

[0002] 3D printing is a process based on digital model files. It uses powdered metal or plastic and other bondable materials to quickly construct entities by stacking them layer by layer. It is often used in mold manufacturing, industrial design, civil engineering and other fields.

[0003] Patent number CN217616049U is a 3D building printing nozzle designed based on the building contour construction process, including a first connecting column, a motor and a feed pipe, the top of the first connecting column is fixedly connected to the motor, the bottom of the first connecting column is fixedly connected to the feed pipe, the bottom of the feed pipe is embedded and connected to a device plate, the bottom of the device plate is fixedly connected to the nozzle, the first connecting column is internally movably connected to a movable component, the middle part of the movable component is movably connected to a first movable rod, the first movable rod can first rotate the block to transmit kinetic energy, improve work efficiency, the first support rod can improve the stability of the 3D building printing nozzle, a number of stirring rods are set, the internal raw materials can be fully mixed, the practicality of the 3D building printing nozzle can be improved, the separation chamber can be used for buffering, the practicality of the 3D building printing nozzle can be improved, the filter screen filters the raw materials, the practicality of the 3D building printing nozzle can be improved, the lack of a heating mechanism during use makes the printing nozzle easy to freeze inside in low temperature environments such as winter and cannot discharge materials normally.

[0004] In low temperature environments such as winter, the print head is affected by the temperature and the material inside is very easy to freeze, causing blockage inside the print head, making it difficult for the print head to discharge materials normally, affecting the smoothness of the print head and the uniformity of the ejected material, and even causing direct blockage and inability to discharge materials. Utility Model Content

[0005] The purpose of the utility model is to provide a printing nozzle for 3D models of building materials, so as to solve the problem proposed in the above background technology that in a low temperature environment, freezing of materials inside the printing nozzle will affect the smoothness of the material discharged from the printing nozzle and the uniformity of the ejected material.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nozzle for printing a 3D model of building materials, comprising: a material storage upper shell, a sealing cover is fixedly installed on the top of the material storage upper shell, a stirring motor is fixedly installed on the top of the sealing cover, a stirring rod is fixedly installed on the bottom of the sealing cover, and the top of the stirring rod is connected to the output end of the stirring motor, and the stirring rod is located in the material storage upper shell cavity;

[0007] A linkage rod is sleeved and installed above and below the stirring rod, and the two sides of the two linkage rods are respectively installed above and below one side of the two scrapers;

[0008] A replacement mechanism is provided below the material storage upper shell, and the nozzle of the 3D model printing nozzle is conveniently replaced by the replacement mechanism;

[0009] A heating mechanism is arranged on the outer side of the material storage upper shell, and the material in the material storage upper shell can be heated by the heating mechanism.

[0010] Furthermore, the replacement mechanism includes an installation spray body, a sealing groove is opened on the top of the installation spray body, a sealing rubber ring is fixedly installed in the sealing groove, and the sealing groove of the installation spray body wraps the bottom of the material storage upper shell.

[0011] Furthermore, a limiting ring is provided above the outer side of the mounting spray body, a limiting ring is provided above the outer side of the material storage upper shell, the bottom of the stirring rod is fixedly connected to the top of the spiral blade, and the spiral blade is located in the mounting spray body cavity.

[0012] Furthermore, a lower limit plate is provided on the outer side of the mounting nozzle body, and the lower limit plate is located below the limit ring of the mounting nozzle body, and an upper limit plate is provided on the outer side of the material storage upper shell, and the upper limit plate is located above the limit ring of the material storage upper shell, and the upper limit plate and the lower limit plate are fixedly connected by a plurality of studs, and the plurality of studs are respectively located at the four corners of the upper limit plate and the lower limit plate.

[0013] Furthermore, the heating mechanism includes an outer shell, a heat preservation layer is provided inside the outer shell, an installation cavity is provided inside the outer shell, and the outer shell is made of insulating material.

[0014] Furthermore, a heating resistance wire is threadedly installed in the installation cavity, and a protective ring is fixedly installed on the inner side of the outer shell, and the protective ring is made of an insulating and heat-conducting material.

[0015] Furthermore, the outer shell is arranged below the material storage upper shell, and is located below the limiting ring of the material storage upper shell and above the limiting ring of the installation spray body.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The replacement mechanism is used to make the print head a split structure, so that the print head can be replaced with nozzles of different sizes. The nozzles of the print head can be replaced according to the actual needs of building materials, thereby improving the flexibility and practicality of the print head.

[0018] The studs are used in conjunction with the lower limit plate and the upper limit plate to integrate the storage upper shell and the installation spray body. At the same time, the sealing rubber ring in the sealing groove is used to seal and protect the assembly of the storage upper shell and the installation spray body to prevent leakage at the assembly point and cause waste.

[0019] The heating mechanism can be used to heat the print head to prevent the material in the print head from freezing in low temperature environments such as winter, which would make it difficult for the print head to discharge material normally and affect the smoothness of the material discharged from the print head and the uniformity of the ejected material.

[0020] The heating mechanism can heat the material in the upper shell of the material storage, so that the material can be more evenly and fully integrated, providing good material for model printing.

[0021] The materials in the upper shell of the material storage are heated by a heating resistance wire to prevent the materials in the upper shell of the material storage from freezing. The protection ring is made of an insulating thermal conductive material for better heat conduction, and is matched with an outer shell of insulating material to improve the safety of the heating mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the lower limit plate of the utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the upper shell of the material storage of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the stirring rod of the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the spray body installed in the utility model;

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of the outer shell of the utility model;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the heating resistance wire of the utility model.

[0029] In the figure: 1. material storage upper shell; 2. sealing cover; 3. stirring motor; 4. stirring rod; 5. linkage rod; 6. scraper; 7. installation spray body; 8. sealing groove; 9. sealing rubber ring; 10. limit ring; 11. spiral blade; 12. lower limit plate; 13. upper limit plate; 14. stud; 15. outer shell; 16. insulation layer; 17. installation cavity; 18. heating resistor wire; 19. protection ring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-Figure 6 , the utility model provides the following technical solutions: a nozzle for printing 3D models of building materials, comprising: a material storage upper shell 1, a sealing cover 2 is fixedly installed on the top of the material storage upper shell 1;

[0032] Embodiment 1: Figure 1-Figure 2 As shown, a stirring device is installed in the print head to fully mix the raw materials inside the print head, which is convenient for the print head to print, as follows:

[0033] A stirring motor 3 is fixedly installed on the top of the sealing cover 2, and a stirring rod 4 is fixedly installed on the bottom of the sealing cover 2, and the top of the stirring rod 4 is connected to the output end of the stirring motor 3, and the stirring rod 4 is located in the material storage upper shell 1 cavity; a linkage rod 5 is sleeved and installed above and below the stirring rod 4, and the two sides of the two linkage rods 5 are respectively installed above and below one side of the two scrapers 6;

[0034] The stirring motor 3 is used to drive the stirring rod 4 to rotate, so that the stirring rod 4 stirs the material in the cavity of the storage upper shell 1. At the same time, the linkage rod 5 is used to make the scraper 6 rotate with the stirring rod 4, and the scraper 6 scrapes the material on the inner wall of the storage upper shell 1 to reduce the loss of the material.

[0035] Embodiment 2: as Figure 2-Figure 4 As shown, the segmented design of the print head allows the print head to replace nozzles according to actual needs, thereby improving the flexibility and practicality of the print head, as follows:

[0036] A replacement mechanism is provided at the bottom of the material storage upper shell 1, and the nozzle of the 3D model printing nozzle can be replaced conveniently by using the replacement mechanism; a heating mechanism is provided on the outside of the material storage upper shell 1, and the material in the material storage upper shell 1 can be heated by using the heating mechanism; the replacement mechanism includes a mounting spray body 7, a sealing groove 8 is provided on the top of the mounting spray body 7, a sealing rubber ring 9 is fixedly installed in the sealing groove 8, and the sealing groove 8 of the mounting spray body 7 wraps the bottom of the material storage upper shell 1; a limiting ring 10 is provided above the outside of the mounting spray body 7, and a limiting ring 10 is provided above the outside of the material storage upper shell 1, the bottom of the stirring rod 4 is fixedly connected to the top of the spiral blade 11, and the spiral blade 11 is located in the cavity of the mounting spray body 7;

[0037] A lower limit plate 12 is sleeved on the outer side of the installation spray body 7, and the lower limit plate 12 is located below the limit ring 10 of the installation spray body 7. An upper limit plate 13 is sleeved on the outer side of the material storage upper shell 1, and the upper limit plate 13 is located above the limit ring 10 of the material storage upper shell 1. The upper limit plate 13 and the lower limit plate 12 are fixedly connected by a plurality of studs 14, and the plurality of studs 14 are respectively located at the four corners of the upper limit plate 13 and the lower limit plate 12;

[0038] The sealing rubber ring 9 in the sealing groove 8 is used to improve the sealing of the entire printing nozzle to prevent leakage at the assembly point of the nozzle body 7 and the material storage upper shell 1 that affects the use. The spiral blade 11 is connected to the stirring rod 4, so that the stirring rod 4 rotates with the spiral blade 11 to feed the material, thereby improving the uniformity of the material output from the printing nozzle. The upper limit plate 13 and the lower limit plate 12 cooperate with the limit ring 10 to fix the material storage upper shell 1 and the nozzle body 7.

[0039] Embodiment three: as Figure 5 and Figure 6 As shown, the print head can heat the inside of the print head by designing a heating mechanism to prevent the material in the print head from freezing, as follows:

[0040] The heating mechanism includes an outer shell 15, an insulating layer 16 is provided in the outer shell 15, an installation cavity 17 is provided inside the outer shell 15, and the outer shell 15 is made of insulating material; a heating resistance wire 18 is threadedly installed in the installation cavity 17, a protective ring 19 is fixedly installed inside the outer shell 15, and the protective ring 19 is made of insulating thermal conductive material; the outer shell 15 is sleeved below the storage upper shell 1, and is located below the limit ring 10 of the storage upper shell 1 and above the limit ring 10 of the installation spray body 7;

[0041] The heating resistor wire 18 is used to provide a heat source, the protection ring 19 and the installation cavity 17 are used to install and protect the heating resistor wire 18, and the two limiting rings 10 are used to fix the position of the heating mechanism.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A nozzle for printing 3D models of building materials, characterized in that: include: A material storage upper shell (1), wherein a sealing cover (2) is fixedly mounted on the top of the material storage upper shell (1), a stirring motor (3) is fixedly mounted on the top of the sealing cover (2), a stirring rod (4) is fixedly mounted on the bottom of the sealing cover (2), and the top of the stirring rod (4) is connected to the output end of the stirring motor (3), and the stirring rod (4) is located in the cavity of the material storage upper shell (1); A linkage rod (5) is sleeved and installed above and below the stirring rod (4), and two sides of the two linkage rods (5) are respectively installed above and below one side of the two scrapers (6); A replacement mechanism is provided below the material storage upper shell (1), and the nozzle of the 3D model printing nozzle is conveniently replaced by utilizing the replacement mechanism; A heating mechanism is provided on the outer side of the material storage upper shell (1), and the material in the material storage upper shell (1) can be heated by the heating mechanism.

2. A nozzle for printing 3D models of building materials according to claim 1, characterized in that: The replacement mechanism comprises a mounting spray body (7), a sealing groove (8) is provided on the top of the mounting spray body (7), a sealing rubber ring (9) is fixedly installed in the sealing groove (8), and the sealing groove (8) of the mounting spray body (7) wraps the bottom of the material storage upper shell (1).

3. The nozzle for printing 3D models of building materials according to claim 2, characterized in that: A limiting ring (10) is provided above the outer side of the installation spray body (7), a limiting ring (10) is provided above the outer side of the material storage upper shell (1), the bottom of the stirring rod (4) is fixedly connected to the top of the spiral blade (11), and the spiral blade (11) is located in the cavity of the installation spray body (7).

4. The nozzle for printing 3D models of building materials according to claim 2, characterized in that: A lower limit plate (12) is sleeved on the outer side of the installation spray body (7), and the lower limit plate (12) is located below the limit ring (10) of the installation spray body (7); an upper limit plate (13) is sleeved on the outer side of the material storage upper shell (1), and the upper limit plate (13) is located above the limit ring (10) of the material storage upper shell (1); the upper limit plate (13) and the lower limit plate (12) are fixedly connected by a plurality of studs (14), and the plurality of studs (14) are respectively located at the four corners of the upper limit plate (13) and the lower limit plate (12).

5. The nozzle for printing 3D models of building materials according to claim 1, characterized in that: The heating mechanism comprises an outer shell (15), a heat-insulating layer (16) is arranged inside the outer shell (15), a mounting cavity (17) is arranged inside the outer shell (15), and the outer shell (15) is made of insulating material.

6. The nozzle for printing 3D models of building materials according to claim 5, characterized in that: A heating resistance wire (18) is installed in the installation cavity (17) in a threaded manner, and a protective ring (19) is fixedly installed on the inner side of the outer shell (15), and the protective ring (19) is made of an insulating and heat-conducting material.

7. The nozzle for printing 3D models of building materials according to claim 5, characterized in that: The outer shell (15) is sleeved below the material storage upper shell (1) and is located below the limiting ring (10) of the material storage upper shell (1) and above the limiting ring (10) of the installation spray body (7).

Images