Reducing nozzle device for 3D printing of building materials

Abstract

The utility model relates to the technical field of nozzle devices, in particular to a variable-diameter nozzle device for 3D printing of building materials, which comprises a mounting seat, mounting holes are formed in the surface of the mounting seat, a discharging pipe is fixedly connected to the middle of the mounting seat, and connecting rods are arranged on the periphery of the discharging pipe. An adjusting mechanism is fixedly connected to the bottom end of the connecting rod, a button switch is installed on the side face of the adjusting mechanism, and a vibrating mechanism is fixedly connected to the position, close to the adjusting mechanism, of the bottom end of the mounting base. The vibration mechanism is arranged at the bottom end of the discharging pipe, the vibration motor works to drive the vibration block to vibrate integrally, the vibration block is matched with materials discharged from the interior of the discharging pipe to enable the materials to be evenly mixed and laid on the surface of the upper layer, air in the materials can be effectively reduced, and the material quality is improved. Due to the design of the splash-proof strips in the vibration block, the materials can be effectively prevented from being splashed when being discharged out of the discharging pipe and making contact with the tiled layer, and the whole device can be used in daily life easily.

Description

Technical Field

[0001] The utility model relates to the technical field of nozzle devices, in particular to a variable-diameter nozzle device for 3D printing of building materials. Background Art

[0002] A variable diameter nozzle device for 3D printing of building materials refers to a nozzle device for 3D printing of building materials, which is characterized in that the diameter of the nozzle outlet can be adjusted as needed. In 3D printing of building materials, cement, concrete, ceramics and other materials are often used. These materials have high viscosity and granularity, so a larger nozzle diameter is required to ensure a smooth printing process. However, in some cases, the printed components may need to have higher precision and details, or smaller components need to be printed. In order to meet these needs, a nozzle device is needed that can adjust the diameter of the nozzle to achieve printing of different precisions and sizes. The existing technology is mostly similar to the patent name "Architectural 3D Printer Smoothing Nozzle", patent number 201621430823.9, mostly a single fixed structure, and there are some problems in use:

[0003] 1. It is inconvenient to adjust the size of the discharge port when the device is in use. It is inconvenient to meet the requirements when encountering buildings with different widths. It is not convenient to adjust the size of the discharge port in a timely and fast manner, which affects the use efficiency and user experience;

[0004] 2. Although the device can smooth the material sprayed out of the discharge port when in use, it lacks a vibration device to spread the building materials fully and evenly on the material surface during smoothing, which is inconvenient to meet your needs and is not conducive to use in daily life.

[0005] To this end, we proposed a variable diameter nozzle device for 3D printing of building materials to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a variable diameter nozzle device for 3D printing of building materials, so as to solve the problems of lack of a discharge port variable diameter device and lack of a vibration mechanism proposed in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a variable diameter nozzle device for 3D printing of building materials, comprising a mounting seat, a mounting hole is opened on the surface of the mounting seat, a feed pipe is fixedly connected to the middle position of the mounting seat, and connecting rods are arranged around the feed pipe, and the bottom end of the connecting rod is fixedly connected to an adjustment mechanism, a button switch is installed on the side of the adjustment mechanism, and a vibration mechanism is fixedly connected to the bottom end of the mounting seat near the adjustment mechanism.

[0008] Preferably, the adjustment mechanism includes a protective cover, a connecting pipe is opened inside the protective cover, and a right-angle moving piece is arranged at the bottom end of the connecting pipe, and a hydraulic press is installed at one end of the right-angle moving piece, and a discharge pipe is arranged at the end of the right-angle moving piece away from the connecting pipe.

[0009] Preferably, the vibration mechanism comprises a support rod, one end of the support rod away from the mounting seat is fixedly connected to a vibration block, a vibration motor is mounted on the surface of the vibration block, and a splash-proof strip is provided on the surface of the vibration block near the adjustment mechanism.

[0010] Preferably, a reserved hole is opened on the surface of the mounting seat, and the diameter of the reserved hole is consistent with the diameter of the discharge pipe.

[0011] Preferably, the connecting rods are arranged in four groups, and the four groups of connecting rods are distributed in a centrally symmetrical manner with respect to the mounting seat.

[0012] Preferably, a reserved groove is provided inside the protective cover.

[0013] Preferably, the right-angle moving plates and the hydraulic press cooperate with each other, and both are arranged in four groups, and the four groups of the right-angle moving plates and the hydraulic press cooperate with each other to perform adjustment and movement.

[0014] Preferably, the support rods are arranged in two groups, and the two groups of support rods are symmetrically distributed with respect to the vibration block.

[0015] Preferably, a reserved hole is opened on the surface of the vibration block at a position close to the discharge pipe, and the diameter of the reserved hole is slightly larger than the diameter of the discharge pipe.

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

[0017] By adding right-angle movable plates and hydraulic presses inside the adjusting mechanism, four sets of right-angle movable plates and hydraulic presses can cooperate with each other to adjust the passing size. When the material coming down from the inside of the discharge pipe reaches the required size after adjustment by the right-angle movable plates and hydraulic press, it is discharged from the discharge pipe. It is convenient and fast, and the size of the material discharged from the discharge pipe can be adjusted at any time, thereby improving the use efficiency and user experience.

[0018] By arranging a vibration mechanism at the bottom end of the discharge pipe, the vibration motor drives the vibration block to vibrate as a whole. The vibration block cooperates with the material discharged from the inside of the discharge pipe so that the materials are evenly mixed and spread on the surface of the upper layer, which can effectively reduce the air inside the material and enhance the strength between the materials. The design of the splash-proof strip inside the vibration block can effectively prevent the splashing of the material when it comes into contact with the flat layer when discharged from the discharge pipe, making the entire device convenient for use in daily life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a front view stereoscopic schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a side perspective schematic diagram of the structure of the utility model;

[0022] Figure 3 It is a three-dimensional schematic diagram of the structural section of the utility model;

[0023] Figure 4 It is an enlarged three-dimensional schematic diagram of the structure of the right-angle moving plate and the hydraulic press of the utility model;

[0024] Figure 5 It is an enlarged three-dimensional schematic diagram of the structure of the vibration mechanism of the utility model.

[0025] In the figure: 1. mounting seat; 2. mounting hole; 3. discharge pipe; 4. connecting rod; 5. adjustment mechanism; 51. protective cover; 52. connecting pipe; 53. right-angle moving piece; 54. hydraulic press; 55. discharge pipe; 6. push button switch; 7. vibration mechanism; 71. support rod; 72. vibration block; 73. vibration motor; 74. splash-proof strip. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-5 The utility model provides an embodiment: a variable diameter nozzle device for 3D printing of building materials, comprising a mounting seat 1, a surface of the mounting seat 1 is provided with a reserved hole, and the diameter of the reserved hole is consistent with the diameter of the feed pipe 3, according to the attached Figure 1 and attached Figure 2 As shown, the material can enter the interior of the discharge pipe 3. The surface of the mounting seat 1 is provided with a mounting hole 2. The discharge pipe 3 is fixedly connected to the middle position of the mounting seat 1, and connecting rods 4 are arranged around the discharge pipe 3. The connecting rods 4 are arranged in four groups. The four groups of connecting rods 4 are centrally symmetrically distributed about the mounting seat 1. Figure 1 and attached Figure 2 As shown, the whole device remains stable during operation;

[0028] The bottom end of the connecting rod 4 is fixedly connected with an adjusting mechanism 5, which includes a protective cover 51. The protective cover 51 is made of metal materials such as steel, aluminum, etc. The metal material has high strength and rigidity, can provide good impact resistance and durability, and is suitable for environments that require high strength and corrosion resistance. A reserved groove is opened inside the protective cover 51. Figure 3 As shown, the right-angle moving piece 53 and the hydraulic press 54 can be installed inside the protective cover 51. A connecting pipe 52 is provided inside the protective cover 51, and a right-angle moving piece 53 is provided at the bottom end of the connecting pipe 52. The right-angle moving piece 53 is made of a polymer material, which has the properties of wear resistance and easy processing.

[0029] A hydraulic press 54 is installed at one end of the right-angle moving piece 53. The hydraulic press 54 is a single-acting hydraulic press, which has only one hydraulic cylinder and is usually used for simple pushing, pressing, punching and drilling operations. Its advantages include small size, light weight, simple operation, and is suitable for small-scale operations and compact spaces. The right-angle moving piece 53 and the hydraulic press 54 cooperate with each other, and both are set as four groups. The four groups of right-angle moving pieces 53 and the hydraulic press 54 cooperate with each other to adjust and move. Figure 3 and attached Figure 4 As shown, the size of the material discharged from the discharge pipe 55 can be adjusted, and the discharge pipe 55 is provided at one end of the right-angle movable piece 53 away from the connecting pipe 52. The feed pipe 3 and the discharge pipe 55 are made of stainless steel, acid-resistant and alkali-resistant alloys, etc., which have the characteristics of durability, stability and corrosion resistance;

[0030] A push button switch 6 is installed on the side of the adjustment mechanism 5. The push button switch 6 is made of plastic, which is one of the most common materials. It has the characteristics of low cost, good insulation performance and light weight. Plastic is easy to process and has a variety of colors and surface treatment options to meet different design requirements. A vibration mechanism 7 is fixedly connected to the bottom end of the mounting base 1 near the adjustment mechanism 5. The vibration mechanism 7 includes a support rod 71. The support rod 71 is made of metal. Common materials include steel, aluminum and stainless steel. Metal materials have high strength and good rigidity, can provide greater extrusion, bending and extrusion resistance, and are suitable for application scenarios that require higher load-bearing capacity and stability;

[0031] The support rods 71 ​​are arranged in two groups, and the two groups of support rods 71 ​​are symmetrically distributed about the vibration block 72. Figure 1 and attached Figure 5As shown, the vibration mechanism 7 can remain stable during the whole process. The end of the support rod 71 away from the mounting base 1 is fixedly connected to the vibration block 72. A reserved hole is opened on the surface of the vibration block 72 near the discharge pipe 55, and the diameter of the reserved hole is slightly larger than the diameter of the discharge pipe 55. Figure 5 As shown, the splash bar 74 can be installed in a suitable position;

[0032] A vibration motor 73 is installed on the surface of the vibration block 72. The vibration motor 73 is a catalytic vibration motor, which generates mechanical vibrations through the principle of electromagnetic induction. They have the advantages of simple structure, easy control and adjustment. The catalytic vibration motor can provide stable vibration in a wide frequency range and can be adjusted as needed. The surface of the vibration block 72 near the adjustment mechanism 5 is provided with a splash-proof strip 74.

[0033] Working principle: When a variable-diameter nozzle device for 3D printing of building materials is normally used, the mounting seat 1 is first installed at the position of the discharge port in conjunction with the mounting hole 2, and then the entire device is connected to an external power supply. The material will flow from the inside of the discharge pipe 3 into the inside of the adjustment mechanism 5 connected to the connecting rod 4, and then enter the surface of the right-angle moving piece 53 from the inside of the connecting pipe 52 opened inside the protective cover 51. The four groups of hydraulic presses 54 control the right-angle moving piece 53 to move in coordination, thereby changing the size of the passing material. After the material reaches a suitable size through the coordination of the right-angle moving piece 53 and the hydraulic press 54, it is discharged from the inside of the discharge pipe 55;

[0034] The vibration motor 73 inside the vibration mechanism 7 is started synchronously, and the splash-proof strip 74 at one end of the vibration block 72 can prevent the splashing of the material discharged from the discharge pipe 55. The vibration motor 73 drives the vibration block 72 to vibrate, and the direct contact between the vibration block 72 and the material causes the material to vibrate and mix, and evenly spread. The support rod 71 provides support for the whole process, which improves the user experience. The above is the entire working principle of the utility model.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A variable diameter nozzle device for 3D printing of building materials, characterized in that: include: A mounting seat (1), wherein a mounting hole (2) is provided on the surface of the mounting seat (1), a feed pipe (3) is fixedly connected to the middle position of the mounting seat (1), and connecting rods (4) are arranged around the feed pipe (3), and an adjustment mechanism (5) is fixedly connected to the bottom end of the connecting rod (4), a button switch (6) is installed on the side of the adjustment mechanism (5), and a vibration mechanism (7) is fixedly connected to the bottom end of the mounting seat (1) near the adjustment mechanism (5).

2. A variable diameter nozzle device for 3D printing of building materials according to claim 1, characterized in that: The adjusting mechanism (5) comprises a protective cover (51), a connecting pipe (52) is provided inside the protective cover (51), a right-angle moving piece (53) is provided at the bottom end of the connecting pipe (52), a hydraulic press (54) is installed at one end of the right-angle moving piece (53), and a discharge pipe (55) is provided at one end of the right-angle moving piece (53) away from the connecting pipe (52).

3. The variable diameter nozzle device for 3D printing of building materials according to claim 1, characterized in that: The vibration mechanism (7) comprises a support rod (71), one end of the support rod (71) away from the mounting seat (1) is fixedly connected to a vibration block (72), a vibration motor (73) is mounted on the surface of the vibration block (72), and a splash-proof strip (74) is provided on the surface of the vibration block (72) near the adjustment mechanism (5).

4. The variable diameter nozzle device for 3D printing of building materials according to claim 1, characterized in that: A reserved hole is provided on the surface of the mounting seat (1), and the diameter of the reserved hole is consistent with the diameter of the feed pipe (3).

5. The variable diameter nozzle device for 3D printing of building materials according to claim 1, characterized in that: The connecting rods (4) are arranged in four groups, and the four groups of connecting rods (4) are distributed in a centrally symmetrical manner with respect to the mounting seat (1).

6. The variable diameter nozzle device for 3D printing of building materials according to claim 2, characterized in that: A reserved groove is provided inside the protective cover (51).

7. The variable diameter nozzle device for 3D printing of building materials according to claim 2, characterized in that: The right-angle moving plates (53) and the hydraulic press (54) cooperate with each other, and both are arranged in four groups. The four groups of the right-angle moving plates (53) and the hydraulic press (54) cooperate with each other to perform adjustment and movement.

8. The variable diameter nozzle device for 3D printing of building materials according to claim 3, characterized in that: The support rods (71) are arranged in two groups, and the two groups of support rods (71) are symmetrically distributed with respect to the vibration block (72).

9. The variable diameter nozzle device for 3D printing of building materials according to claim 3, characterized in that: A reserved hole is provided on the surface of the vibration block (72) at a position close to the discharge pipe (55), and the diameter of the reserved hole is slightly larger than the diameter of the discharge pipe (55).

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