Feeding structure of 3D printer

Abstract

The utility model relates to a 3D printer feeding structure which comprises a collecting device, a processing device is arranged at the bottom of the collecting device, and a conveying device is arranged on the left side of the processing device. The collecting device comprises a collecting bin, a filtering assembly is arranged in the collecting bin, a material guiding channel is formed in the top of the collecting bin, the processing device comprises a box body, a vacuum bin is formed in the box body, a pressure sensor is arranged in the vacuum bin, and the conveying device comprises a shell. A motor is arranged at the bottom of the shell, and a spiral conveying rod rotationally connected with the inner top wall of the shell is fixedly installed at the position of an output shaft of the motor. According to the feeding structure of the 3D printer, through the arrangement of the collecting device, the processing device and the conveying device, powder scattered in the 3D printing process is effectively collected, processed and recycled, environmental pollution is reduced, and meanwhile resource waste is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printing technical field, concretely is a kind of 3D printer feeding structure. BACKGROUND

[0002] SLM (selective laser melting) process is outstanding in the medical field with its excellent customization ability, and can create highly customized implants and prostheses according to patient needs, including dental implants, artificial joints and spinal implants, which are all personalized according to the patient's accurate anatomical structure and unique needs, ensuring the fit, comfort and efficiency of the treatment plan. In addition, SLM 3D printing technology is also good at manufacturing high-precision surgical guides and models, which are based on patient CT or MRI scan data, providing doctors with a powerful assistant for preoperative planning and simulation. These guides and models play a crucial role in surgery, helping doctors achieve precise positioning and operation, significantly improving the success rate and safety of surgery.

[0003] However, during the 3D printing process, unused powder will inevitably scatter. If these powders are not collected and processed in time, not only will it cause environmental pollution, but also will cause great waste of resources. Therefore, a 3D printer feeding structure is proposed. SUMMARY

[0004] To overcome the shortcomings of the prior art, the utility model provides a 3D printer feeding structure, which has the advantages of recycling excess material, etc. It solves the problem of environmental pollution and great waste of resources caused by the scattering of unused powder during the 3D printing process.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a 3D printer feeding structure, comprising a collecting device, a processing device is arranged at the bottom of the collecting device, a conveying device is arranged at the left side of the processing device;

[0006] The collecting device comprises a collecting bin, a filter assembly is arranged inside the collecting bin, a material guiding channel is arranged at the top of the collecting bin, the processing device comprises a box body, a vacuum chamber is formed inside the box body, a pressure sensor is arranged inside the vacuum chamber, the conveying device comprises a shell, a motor is arranged at the bottom of the shell, a spiral conveying rod is fixedly installed at the output shaft of the motor and rotatably connected with the inner top wall of the shell.

[0007] Further, the filter assembly comprises a fixed plate, fixed plates are fixedly installed on the left and right inner walls of the collecting bin, springs are fixedly installed on the top of the two fixed plates, and a screen is fixedly installed between the tops of the two springs.

[0008] Further, the right side of the collecting bin is provided with a waste collecting box, the screen is obliquely arranged, and the right side of the screen extends to the inside of the waste collecting box.

[0009] Further, the rear side of the collecting bin is fixedly provided with a motor, the output shaft of the motor is fixedly provided with a cam, and the cam is in contact with the bottom of the screen.

[0010] Further, a discharging pipe is arranged between the collecting bin and the vacuum bin, the inside of the box body is provided with a containing cavity, the inside of the containing cavity is provided with a vacuum pump, and a gas pipe is arranged between the vacuum pump and the vacuum bin.

[0011] Further, a pipeline is arranged between the vacuum bin and the shell, and the left side of the shell is provided with a connecting pipe.

[0012] Compared with the prior art, the technical scheme has the following beneficial effects:

[0013] 1. The 3D printer feeding structure realizes effective collection, treatment and recycling of the scattered powder in the 3D printing process, reduces environmental pollution and avoids waste of resources.

[0014] 2. The 3D printer feeding structure can efficiently collect the scattered powder during printing, remove the un-melted particles, dust and other impurities in the powder through the filter assembly, ensure the quality of the powder for subsequent treatment, effectively remove the water vapor, grease and other pollutants in the powder by using the vacuum environment formed by the vacuum pump and the pressure sensor, improve the purity and utilization rate of the powder, and stably convey the treated powder to the storage box in the feeding system through the rotation of the spiral conveying rod, thereby providing a reliable raw material source for subsequent 3D printing operation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Fig. 2 It is a sectional view of the utility model;

[0017] Fig. 3 It is a schematic diagram of the structure of the filter assembly of the utility model.

[0018] In the drawing: 1, collecting device; 101, collecting bin; 102, filter assembly; 103, waste collecting box; 104, material guiding channel; 2, treatment device; 201, box body; 202, vacuum bin; 203, pressure sensor; 204, containing cavity; 205, vacuum pump; 3, conveying device; 301, shell; 302, motor; 303, spiral conveying rod; 304, connecting pipe; 401, spring; 402, screen; 403, motor; 404, cam. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] Please refer to Figs. 1-3 The feeding structure of the 3D printer in the embodiment comprises a collecting device 1, the bottom of the collecting device 1 is provided with a processing device 2, and the left side of the processing device 2 is provided with a conveying device 3.

[0021] The collecting device 1 comprises a collecting bin 101, the inside of the collecting bin 101 is provided with a filtering assembly 102, the top of the collecting bin 101 is provided with a material guiding channel 104, the processing device 2 comprises a box body 201, the inside of the box body 201 is provided with a vacuum bin 202, the inside of the vacuum bin 202 is provided with a pressure sensor 203, and the conveying device 3 comprises a shell 301, the bottom of the shell 301 is provided with a motor 302, and the output shaft of the motor 302 is fixedly installed with a spiral conveying rod 303 which is rotationally connected with the inner top wall of the shell 301.

[0022] The collecting bin 101 in the collecting device 1 is used for collecting the powder scattered during printing, and the powder enters the collecting bin 101 from the material guiding channel 104 and falls on the screen 402 of the filtering assembly 102.

[0023] In order to realize the filtration of the powder, the filtering assembly 102 comprises a fixed plate, a spring 401, a screen 402, a motor 403 and a cam 404, the screen 402 is in a state of shaking by the rotation of the cam 404 and the expansion and contraction of the spring 401, so as to remove the impurities such as un-melted particles and dust in the powder.

[0024] By setting the waste collecting box 103 and setting the screen 402 to be inclined, the right side of the screen 402 extends to the inside of the waste collecting box 103, so that the particles and dust impurities in the powder can enter the inside of the waste collecting box 103 along the inclined surface of the screen 402 for collection.

[0025] In order to remove the water vapor and grease and other pollutants in the powder, the filtered powder enters the vacuum chamber 202 of the treatment device 2 from the discharge pipe, the inside of the box body 201 is provided with a containing cavity 204, the inside of the containing cavity 204 is provided with a vacuum pump 205, the inside of the vacuum chamber 202 is formed vacuum by the vacuum pump 205 to remove the oil stains and water vapor and other pollutants in the powder, and the pressure sensor 203 monitors the pressure in the vacuum chamber 202 in real time to ensure the stability of the vacuum degree.

[0026] In order to transport the treated powder to the storage box in the feeding system, a motor 302 and a spiral conveying rod 303 are arranged, the treated powder is transported from the connecting pipe 304 to the storage box in the feeding system by the rotation of the spiral conveying rod 303 for subsequent use.

[0027] In the implementation, the following method is used for operation: when the 3D printer is printing, the scattered powder enters the collection chamber 101 through the guide channel 104, the motor 403 is started, the output shaft of the motor 403 drives the cam 404 to rotate, the cam 404 is in contact with the bottom of the screen 402 to make the screen 402 vibrate, the un-melted particles and dust and other impurities on the screen 402 are screened out and enter the waste collection box 103 along the inclined surface of the screen 402, the screened powder enters the vacuum chamber 202 of the treatment device 2 through the discharge pipe, the vacuum pump 205 is started, the vacuum pump 205 extracts the air in the vacuum chamber 202 through the air pipe to form a vacuum environment, the water vapor and grease and other pollutants in the powder are removed in the vacuum environment, when the powder in the vacuum chamber 202 is treated, the motor 302 is started, the output shaft of the motor 302 drives the spiral conveying rod 303 to rotate in the shell 301, the spiral conveying rod 303 transports the treated powder from the vacuum chamber 202 to the shell 301 through the pipeline, and finally transports the treated powder to the storage box in the feeding system from the connecting pipe 304.

[0028] In summary, the feeding structure of the 3D printer realizes effective collection, treatment and reuse of the scattered powder in the 3D printing process by arranging the collection device 1, the treatment device 2 and the conveying device 3, reduces environmental pollution and avoids waste of resources.

[0029] Further, the collection device 1 can efficiently collect the scattered powder during printing and remove the un-melted particles and dust and other impurities in the powder through the filtering assembly 102 to ensure the quality of the powder for subsequent treatment, the treatment device 2 effectively removes the water vapor and grease and other pollutants in the powder by using the vacuum environment formed by the vacuum pump 205 and the pressure sensor 203 to improve the purity and utilization rate of the powder, and the conveying device 3 stably transports the treated powder to the storage box in the feeding system by the rotation of the spiral conveying rod 303 to provide a reliable raw material source for subsequent 3D printing operation.

[0030] It has to be noted that, in the present document, the terms "first", "second", etc. merely serve to identify different entities or actions and do not necessarily require or imply any actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without further constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0031] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A 3D printer feeding structure comprising a collecting device (1), characterized in that: The bottom of the collecting device (1) is provided with a processing device (2), and the left side of the processing device (2) is provided with a conveying device (3); The collecting device (1) comprises a collecting bin (101), the inside of the collecting bin (101) is provided with a filtering assembly (102), the top of the collecting bin (101) is provided with a material guiding channel (104), the processing device (2) comprises a box body (201), the inside of the box body (201) is provided with a vacuum bin (202), the inside of the vacuum bin (202) is provided with a pressure sensor (203), the conveying device (3) comprises a shell (301), the bottom of the shell (301) is provided with a motor (302), and the output shaft of the motor (302) is fixedly installed and connected with the inner top wall of the shell (301) in rotation. 2.The 3D printer feeding structure according to claim 1, wherein: The filtering assembly (102) comprises a fixed plate, the left and right inner walls of the collecting bin (101) are fixedly installed with fixed plates, the top of each of the two fixed plates is fixedly installed with a spring (401), and the top of the two springs (401) is fixedly installed with a screen (402).

3. The 3D printer feeding structure according to claim 2, characterized in that: The right side of the collecting bin (101) is provided with a waste collecting box (103), the screen (402) is inclined, and the right side of the screen (402) extends to the inside of the waste collecting box (103).

4. The 3D printer feeding structure according to claim 2, wherein: The rear side of the collecting bin (101) is fixedly installed with a motor (403), the output shaft of the motor (403) is fixedly installed with a cam (404), and the cam (404) is in contact with the bottom of the screen (402).

5. The 3D printer feeding structure according to claim 1, wherein: The collecting bin (101) and the vacuum bin (202) are provided with a discharging pipe, the inside of the box body (201) is provided with a containing cavity (204), the inside of the containing cavity (204) is provided with a vacuum pump (205), and the vacuum pump (205) and the vacuum bin (202) are provided with an air pipe. 6.The 3D printer feeding structure according to claim 1, wherein: The vacuum bin (202) and the shell (301) are provided with a pipeline, and the left side of the shell (301) is provided with a connecting pipe (304).

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