CN220178172U

CN220178172U - A remove injection apparatus for 3D prints

Info

Publication number: CN220178172U
Application number: CN202321305979.4U
Authority: CN
Inventors: 肖颜君; 阳建君; 柏瑞达; 李济; 彭海; 齐景浩; 李普宇; 吕华钦; 范才河; 胡泽艺; 吴琴
Original assignee: Hunan University of Technology
Current assignee: Hunan University of Technology
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-12-15
Anticipated expiration: 2033-05-26

Abstract

The utility model relates to the technical field of spraying devices and discloses a mobile spraying device for 3D printing, which comprises a bracket arranged on a platform to be processed, a motor arranged on the bracket, and a rotating disk connected with an output shaft of the motor, wherein the bracket is also provided with a mobile frame in a sliding manner; the rotary disk is connected with the movable frame through a connecting rod, a nozzle is arranged on the movable frame, and the nozzle is connected with a molten metal supply pipe and an air supply pipe for spraying molten metal from the nozzle onto the processing platform. The device can increase the injection range.

Description

A remove injection apparatus for 3D prints

Technical Field

The utility model relates to the technical field of spraying devices, in particular to a mobile spraying device for 3D printing.

Background

The spray forming 3D printing rapid solidification process is a material forming rapid solidification technology developed based on the purposes of energy conservation, low consumption and low cost, and compared with the traditional casting and powder metallurgy technologies, the technology has the advantages of high cooling speed, uniform material structure, fine grains, low oxidation degree and the like, so that the prepared material has excellent comprehensive performance. The main process is that molten metal is poured into a leakage ladle, flows out through a leakage nozzle, is atomized by introducing high-pressure gas while flowing out, and solid-liquid particles after atomization are deposited on a workbench for forming.

The injection molding device has the functions of containing molten metal, feeding, injection molding and the like in the processing process, is used as a container for bearing high-temperature molten metal, ensures that the leakage package cannot be compatible in the process of bearing the molten metal to generate impurities to influence the molten metal components, is used as a feeding device for injection molding and a spray gun for injection molding, and is used for spraying low-temperature high-pressure gas to be matched with a container leakage nozzle to drop the molten metal, so that the injection molding effect is achieved.

At present, in the injection molding device, an injection port is fixed and can not move in the injection process, namely, the injection port can only be fixed and injected towards one place, the injection range is small, and the linear injection can not be realized.

The prior art discloses: CN107150124a discloses a 3D jet printing device, which is characterized by comprising: the three-dimensional modeling module is used for building a three-dimensional model; the model contour forming module extracts data of the three-dimensional model according to the three-dimensional model to set a limit characteristic of the mould; the digital atomization metal drip module comprises a digital fluid generator and a digital injection control module, wherein the output end of the digital injection control module is connected with the input end of the digital injection liquid flow atomization module and used for driving the digital injection liquid flow atomization module to inject according to a set sequence and direction, and the digital fluid generator generates drip according to data of a three-dimensional model; the forming module is provided with a forming inner cavity, is prepared from fiber cloth without dipping liquid, and is provided with a high-strength ultra-lyophobic coating on the surface; and the computer control module is in control connection with the three-dimensional modeling module, the model contour forming module, the digital atomization metal drip module and the forming module.

The prior art does not disclose how to achieve a straight injection, i.e. the prior art still has the technical disadvantage of a small injection range.

Disclosure of Invention

The utility model solves the technical problem of overcoming the problems existing in the prior art and providing a mobile spraying device for 3D printing, which can increase the spraying range.

The aim of the utility model is achieved by the following technical scheme:

the device comprises a bracket placed on a platform to be processed, a motor arranged on the bracket, and a rotary disk connected with an output shaft of the motor, wherein the bracket is also provided with a movable frame in a sliding manner; the rotary disk is connected with the movable frame through a connecting rod, a nozzle is arranged on the movable frame, and the nozzle is connected with a molten metal supply pipe and an air supply pipe for spraying molten metal from the nozzle onto the processing platform.

Preferably, two ends of the connecting rod are respectively hinged with the rotating disc and the movable frame.

Preferably, a first sliding groove is formed in the rotating disc, a sliding block is arranged in the first sliding groove, and the connecting rod is hinged with the sliding block.

Preferably, the link articulates the end of the carriage adjacent the rotating disc.

Preferably, a second chute for sliding the movable frame is arranged on the bracket.

Preferably, the bracket is provided with a mounting frame for mounting the rotary disk.

Preferably, the gas supply pipe is connected to a nitrogen supply device.

Preferably, the bracket comprises a ramp on which the carriage is disposed.

Preferably, the nozzle is fixedly connected with the movable frame through a bolt.

Preferably, the support is also provided with a limiting block for preventing the movable frame from being separated.

According to the mobile spraying device for 3D printing, the bracket is used as an integral mounting frame, the motor and the rotary disk are arranged on the bracket, and the motor drives the rotary disk to rotate. The bracket is also provided with a movable frame which can slide relative to the bracket. The moving frame is provided with the nozzles, and in the rotating process of the rotating disc, the connecting rod drives the moving frame to move, so that the nozzles are moved, and finally, the linear injection is realized.

Compared with the prior art, the method has the following beneficial effects:

1) The motor drives the rotary disk to rotate, so that the movable frame connected with the nozzles is driven to move, the spraying of the nozzles in a linear range is realized, and the spraying range is increased.

2) The movable frame is connected with the support in a sliding manner, can move back and forth relative to the support, and the nozzles on the movable frame can spray back and forth in reality.

3) The limiting block is arranged on the support, so that the moving frame can be prevented from being separated from the support in the moving process.

4) The molten metal is condensed by the gas supply pipe and a high pressure is formed in the nozzle, thereby providing the nozzle with injection power.

Drawings

Fig. 1 is a front view of a mobile jetting apparatus for 3D printing in accordance with the present utility model;

FIG. 2 is a front view of a mobile jetting apparatus for 3D printing in accordance with the present utility model;

fig. 3 is a top view of a mobile jetting apparatus for 3D printing in accordance with the present utility model.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present utility model will be described in detail below with reference to the following detailed description and the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

In addition, in the description of the present utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Example 1

As shown in fig. 1 to 3, a mobile spraying device for 3D printing is disclosed, the device comprises a bracket 1 placed on a platform to be processed, a motor 2 arranged on the bracket 1, a rotating disk 3 connected with an output shaft of the motor 2, and a mobile frame 4 arranged on the bracket 1 in a sliding manner; the rotating disc 3 is connected with the movable frame 4 through a connecting rod 5, a nozzle 6 is arranged on the movable frame 4, and the nozzle 6 is connected with a molten metal supply pipe and an air supply pipe for spraying molten metal from the nozzle to the processing platform.

The product is placed on the platform to be processed, and in the 3D printing process, solidified metal particles are sprayed onto the platform to be processed through the nozzle 6, so that the spraying processing of 3D printing is completed. For the purpose of linear spraying on the processing platform, a support 1 placed on the platform to be processed can be provided, and a motor 2 and a rotary disk 3 connected with the output shaft of the motor 2 are arranged on the support 1. When the motor 2 moves forward and backward, the rotating disk 3 is driven to rotate forward and backward. Simultaneously, a movable frame 4 is also connected on the bracket 1 in a sliding way. The movable frame 4 is connected with the rotary disk 3 through a connecting rod 5, and the rotary disk 3 drives the movable frame 4 to slide along a linear direction relative to the bracket 1 in the rotating process. In addition, the nozzle 6 is disposed on the moving frame 4, and naturally, when the moving frame 4 slides, the nozzle 6 is also driven to move in a linear direction. The nozzle 6 can be fixed on the movable frame 4 in a fixed connection mode, the nozzle 6 can adopt a cone-shaped inverted bucket structure, one end of the nozzle 6 is connected with a molten metal feeding device, molten metal is supplied into the nozzle 6 by the feeding device, a low-temperature high-pressure gas is conveyed into the nozzle 6 through an air supply pipe connected with the nozzle 6, and other metals are condensed through low-temperature high-pressure gas, so that the molten metal is converted into particles, and the metal particles are sprayed out of the nozzle under a high-pressure state. The nozzle 6 moves back and forth along with the moving frame 4, so that spraying in a straight direction is realized, and finally the spraying range is increased.

Example 2

The device comprises a bracket 1 arranged on a platform to be processed, a motor 2 arranged on the bracket 1, a rotating disk 3 connected with an output shaft of the motor 2, and a movable frame 4 arranged on the bracket 1 in a sliding manner; the rotating disc 3 is connected with the movable frame 4 through a connecting rod 5, a nozzle 6 is arranged on the movable frame 4, and the nozzle 6 is connected with a molten metal supply pipe and an air supply pipe for spraying molten metal from the nozzle to the processing platform.

The difference between this embodiment and embodiment 1 is that: both ends of the connecting rod 5 are respectively hinged with the rotating disc 3 and the movable frame 4. The connecting rod 5 both ends are connected with rotary disk 3 and remove frame 4 through articulated mode, and when rotary disk 3 drove and remove the in-process that frame 4 removed, can ensure that connecting rod 5 and rotary disk 3 and remove the connection of frame 4 are stable.

In order to facilitate the rotating disc 3 to drive the moving frame 4 to move, a first chute can be arranged on the rotating disc 3, a sliding block which can slide relative to the first chute is arranged in the first chute, and a connecting rod 5 is hinged with the sliding block. The rotating disk 3 rotates under the action of the motor 2, and in the rotating process, the sliding block slides in the first sliding groove, and the design has the advantages that the height of the connecting point between the connecting rod 5 and the rotating disk 3 is relatively unchanged, so that the angle between the connecting rod 3 and the movable frame 4 is also not greatly changed, and the connecting rod 5 can be better ensured to drive the movable frame 4 to slide relative to the bracket 1.

Similarly, in order to facilitate the rotation of the disc 3, the moving frame 4 can be driven to move, so that the displacement size of the moving frame 4 is increased as much as possible. When the link 5 is hinged to the rotating disc 3, the link 4 may be connected to the end of the moving frame 4 adjacent to the rotating disc 3.

Example 3

The difference between this embodiment and embodiment 1 is that: the bracket 1 is provided with a second chute for the movable frame 4 to slide. The second chute is specifically a second chute formed by combining two sliding rails fixedly connected with the bracket 1. The movable frame 4 is connected with two slide rails and slides relative to the bracket 1 along with the rotation of the rotary disk 3 under the action of the connecting rod 5. In order to facilitate the movable frame 4 to slide relative to the second sliding groove, rollers may be respectively disposed at the end of the movable frame 4 contacting with the second sliding rail.

Example 4

The difference between this embodiment and embodiment 1 is that: the rotating disc 3 can be laid flat on the bracket 1, and the rotating disc 3 rotates in the horizontal direction. Similarly, the rotating disc 3 may be disposed perpendicular to the support 1, and in this case, in order to facilitate the installation of the rotating disc 3, a mounting frame 30 for mounting the rotating disc 3 may be disposed on the support 1.

Example 5

The difference between this embodiment and embodiment 1 is that: the gas supply pipe is connected with the nitrogen supply device. The molten metal enters the nozzle 6 in a liquid state, and heat transfer is necessary to reduce the temperature of the molten metal in order to change the molten metal from a liquid state to a solid state. Therefore, the nitrogen supply device is connected through the gas supply pipe, high-pressure low-temperature nitrogen is provided by the nitrogen supply device, and when the high-pressure low-temperature nitrogen enters the nozzle, the molten metal is solidified into solid particles by hand cooling. Then, the molten steel is sprayed from the nozzle onto the processing platform under high pressure. The nitrogen is selected as the cold source, and the method has the advantages of low cost and no environmental pollution.

Example 6

The difference between this embodiment and the above embodiment is that: the support 1 comprises a bevel and the mobile carriage 4 is then arranged on the bevel. When the rotating disc 3 rotates, the movable frame 4 is driven to slide along the inclined plane through the connecting rod 5. The advantage of this arrangement is that: sliding in the horizontal direction with respect to the moving rack 4, when the sliding distance is the same, the spraying range of the nozzles 6 on the moving rack 4 on the inclined surface will be larger, thereby further improving the spraying range of the device. The nozzle 6 can be fixed on the movable frame by means of bolts, buckles and the like, and is stable in connection and convenient to detach.

Example 7

The difference between this embodiment and embodiment 1 is that: the device also comprises a rotation speed sensor for detecting the rotation of the rotating disc 3 and a speed sensor for detecting the sliding of the moving frame 4. The rotation speed sensor and the speed sensor can be correspondingly arranged on the rotating disk 3 according to the conventional installation mode in the industry, and the speed sensor is arranged on the movable frame 4. The two sensors are arranged, so that the numerical values of the two sensors can be compared in the injection process, and whether the two sensors work normally or not can be judged. Meanwhile, when the numerical value of the reference rotation speed sensor changes, the numerical value of the speed sensor changes, and two speed change rules can be found out through comparison. The sliding speed, that is, the injection speed of the movable frame 4 can be flexibly controlled by adjusting the rotating speed of the rotating disc 3.

It is apparent that the above examples are only examples for clearly illustrating the technical solution of the present utility model, and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The mobile spraying device for 3D printing is characterized by comprising a bracket placed on a platform to be processed, a motor arranged on the bracket and a rotating disk connected with an output shaft of the motor, wherein the bracket is also provided with a mobile frame in a sliding manner; the rotary disk is connected with the movable frame through a connecting rod, a nozzle is arranged on the movable frame, and the nozzle is connected with a molten metal supply pipe and an air supply pipe for spraying molten metal from the nozzle onto the processing platform.

2. A mobile jetting apparatus for 3D printing as claimed in claim 1, wherein the two ends of the link are hinged to the rotating disc and the moving frame, respectively.

3. The mobile jetting apparatus for 3D printing of claim 2, wherein the rotating disk is provided with a first chute, a slider is disposed in the first chute, and the link is hinged to the slider.

4. A mobile jetting apparatus for 3D printing as claimed in claim 2 wherein the link articulates the end of the carriage adjacent the rotating disk.

5. The mobile jetting apparatus for 3D printing of claim 1 wherein the carriage is provided with a second chute for sliding the carriage.

6. A mobile jetting apparatus for 3D printing as claimed in claim 1, wherein the carriage is provided with a mounting frame on which the rotary disk is mounted.

7. A mobile jetting apparatus for 3D printing as claimed in claim 1, wherein the gas supply pipe is connected to a nitrogen supply.

8. A mobile jetting apparatus for 3D printing as claimed in claim 1, wherein the carriage comprises a ramp on which the mobile carriage is disposed.

9. A mobile jetting apparatus for 3D printing as claimed in claim 1, wherein the nozzles are fixedly connected to the mobile carriage by bolts.

10. The mobile jetting apparatus for 3D printing of claim 1, wherein the support is further provided with a stopper for preventing the mobile frame from being separated.