CN109624322B - Forming platform and polar coordinate 3D printer with same - Google Patents

Abstract

The invention belongs to the technical field of 3D printers, and discloses a forming platform and a polar coordinate 3D printer having the forming platform. The platform includes a support mechanism, a fixed plate, a spring, a support plate, a transmission plate and a forming substrate. The forming substrate Connected to the transmission plate, the transmission plate is slidably connected to the support plate; the surface of the transmission plate is connected to one end of a connecting rod, and the other end of the connecting rod penetrates the support plate and extends into the support mechanism; the fixed plate sleeved on the support mechanism; both ends of the spring are respectively connected to the fixed plate and the support plate; the installation position of the fixed plate relative to the support mechanism is adjusted by the spring, so that the rotation center axis of the support plate is aligned with the spray head The central axis of the substrate is parallel, and the surface of the forming substrate is parallel to the moving plane of the nozzle by adjusting the stud bolts. The invention improves the contact degree and the forming efficiency of the spray head and the forming substrate, and has a simple structure.

Description

A forming platform and polar coordinate 3D printer having the forming platform

technical field

The invention belongs to the technical field of 3D printers, and more particularly, relates to a forming platform and a polar coordinate 3D printer having the forming platform.

Background technique

3D printing technology, also known as Rapid Prototyping Manufacturing (RPM) or additive manufacturing technology, involves disciplines such as mechanical engineering, material engineering, digital control, reverse manufacturing, CAD technology, and computer technology. The basic principle of 3D printing technology is "printing layer by layer, layer by layer", that is, the 3D model is first generated by CAD software, and then sliced and sliced by the upper computer slicing software (such as cura, Repetier-Host, RetinaCreate, etc.). Plan the path, import the generated G-code file to the lower computer controller, and then the controller controls the 3D printing device to reproduce the 3D solid model layer by layer.

With 3D printing rapid prototyping technology as the core, 3D molding equipment with different printing principles has emerged. Among them, Fused Deposition Modeling (FDM) equipment has become a hot spot in current applications because of its ease of use and simple operation. The core of its hardware is the hot melt printing nozzle. , the printing material is mostly hot melt plastic. During the printing process, under the control of the controller, the hot-melt plastic is pushed to the printing nozzle by the feeding mechanism, and then melted at high temperature by the nozzle to extrude it.

At present, relevant technical personnel in the field have done some research, but the 3D printing molding technology still faces many problems, one of which is the contact angle between the molding substrate and the nozzle. In general 3D printers, the degree of cooperation between the nozzle and the forming substrate is not high, and the center line of the nozzle and the substrate plane cannot reach a vertical state of 90°, which will affect the printing effect and may cause problems such as warping of the model. Correspondingly, there is a technical requirement in the art to develop a forming platform capable of solving the problem that the nozzle is not perpendicular to the forming substrate, and a polar coordinate 3D printer having the forming platform.

SUMMARY OF THE INVENTION

Aiming at the above defects or improvement needs of the prior art, the present invention provides a molding platform and a polar coordinate 3D printer with the molding platform. Based on the characteristics of the 3D printing molding equipment, a system that can make the molding substrate and the A forming platform in a vertical state of 90° between printing nozzles and a polar coordinate 3D printer with the forming platform. The forming platform is adjusted so that the central axis of the printing nozzle is parallel to the central axis of the forming substrate, so that the forming substrate is perpendicular to the printing nozzle, which effectively prevents the printing nozzle from being incompatible with the forming substrate during the printing process. The vertical problem occurs, and the structure is simple, easy to manufacture, and has good applicability.

In order to achieve the above object, according to an aspect of the present invention, a forming platform is provided, which is suitable for a polar coordinate 3D printer; the forming platform includes a support mechanism, a fixed plate, a spring, a support plate, a transmission plate and a forming substrate, so The forming base plate is connected to the transmission plate, and the transmission plate is slidably connected to the support plate; the surface of the transmission plate facing the support mechanism is connected to one end of a stepped connecting rod, and the connecting rod is The other end passes through the support plate and then extends into the support mechanism; the forming base plate, the transmission plate and the support plate are parallel to each other; the fixed plate is sleeved on the support mechanism adjacent to the support plate. on one end; the two ends of the spring are respectively connected to the fixed plate and the support plate;

The installation position of the fixed plate relative to the support mechanism is adjusted by the spring, so that the rotation center axis of the disc-shaped support plate is parallel to the center axis of the printing nozzle, and then the center axis of the disk-shaped support plate is adjusted to be connected to the forming substrate. Studs make the surface of the forming substrate parallel to the plane of motion of the printhead.

Further, the support mechanism is cylindrical; the forming platform further includes a motor and a coupling, the output shaft of the motor extends into the support mechanism and is connected to the coupling, and the coupling The connector is connected to the other end of the connecting rod.

Further, the central axis of the motor coincides with the central axis of the forming substrate.

Further, the forming platform further includes a water cooler, and the water cooler is accommodated in the support mechanism and sleeved on the connecting rod.

Further, the forming platform further includes a cylindrical roller bearing, and the cylindrical roller bearing is arranged between the connecting rod and the supporting plate.

Further, the forming platform further includes a plane bearing, and the plane bearing is arranged between the transmission plate and the support plate.

Further, the forming platform further includes a plurality of stud bolts, and both ends of the stud bolts are respectively connected to the transmission plate and the forming base plate.

Further, a plurality of the stud bolts are evenly arranged around the central axis of the forming substrate.

Further, the number of the springs is multiple, and the multiple springs are evenly arranged around the central axis of the supporting plate.

According to another aspect of the present invention, a polar coordinate 3D printer is provided, which includes a printing nozzle, the printer further includes the above-mentioned forming platform, and the central axis of the forming substrate is parallel to the central axis of the printing nozzle. , that is, the printing nozzle and the forming substrate are in a vertical state of 90 degrees.

In general, compared with the prior art through the above technical solutions conceived by the present invention, the forming platform provided by the present invention and the polar coordinate 3D printer having the forming platform mainly have the following beneficial effects:

1. Adjust the installation position of the fixed plate relative to the support mechanism through the spring, so that the rotation center axis of the disc-shaped support plate is parallel to the center axis of the print head, and further adjust the stud bolts. The surface of the forming substrate is made parallel to the moving plane of the printing nozzle, which effectively avoids the problem that the printing nozzle is not perpendicular to the forming substrate during the printing process, and improves the forming efficiency and quality.

2. The forming platform has a simple structure, is easy to manufacture, and has good applicability.

3. The forming platform further includes a water cooler, which is accommodated in the support mechanism and sleeved on the connecting rod; the water cooler is used to cool the forming platform to ensure that the forming platform is High quality and life, prevent high temperature printing and forming, excessive temperature will affect the printing temperature and the life of the forming platform.

4. The cylindrical roller bearing is arranged between the connecting rod and the support plate, and the friction and wear between the support plate and the connecting rod.

5. The plane bearing is arranged between the transmission plate and the support plate, so as to effectively reduce the friction and wear between the transmission plate and the support plate.

Description of drawings

FIG. 1 is a schematic structural diagram of a forming platform provided by the present invention.

FIG. 2 is a cross-sectional view of the forming platform of FIG. 1 .

In all drawings, the same reference numerals are used to denote the same elements or structures, wherein, 1-formed base plate, 2-stud bolt, 3-transmission plate, 4-plane bearing, 5-cylindrical roller bearing, 6-spring, 7-support plate, 8-fixed plate, 9-water cooler, 10-coupling, 11-support mechanism, 12-motor.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Please refer to FIG. 1 and FIG. 2 , the forming platform provided by the present invention is suitable for a polar coordinate 3D printer, which includes a printing forming module, a connection transmission module and an auxiliary module, the connection transmission module is arranged on the auxiliary module, and the printing The forming module is arranged on the connecting transmission module. Wherein, the connection transmission module is used to adjust the state of the printing and forming module.

The auxiliary module includes a water cooler 9 and a support mechanism 11 . The support mechanism 11 is cylindrical and is used to support the connection transmission module. The water cooler 9 is accommodated in the support mechanism 11, which is disposed adjacent to the connection transmission mechanism. In this embodiment, the water cooler 9 is used to cool the forming platform, so as to ensure the quality and life of the forming platform, and prevent the high temperature from affecting the printing temperature and the life of the forming platform during high temperature printing and forming.

The connection and transmission module includes a motor 12, a coupling 10, a fixed plate 8, a support plate 7, a spring 6, a cylindrical roller bearing 5, a plane bearing 4, a stud bolt 2 and a transmission plate 3. The motor 12 is arranged on the One end of the support mechanism 11 abuts on the support mechanism 11 . In this embodiment, the output shaft of the motor 12 extends into the support mechanism 11 and is connected to the coupling 10 . The coupling 10 is located in the supporting mechanism 11 and is connected to the transmission plate 3 . The support plate 7 is a stepped disc with through holes. The surface of the transmission plate 3 facing the support mechanism 11 is connected to one end of a stepped connecting rod, and the other end of the connecting rod passes through the through hole and the water cooler 9 in sequence and is connected to the connecting rod. The motor 12 drives the transmission plate 3 to rotate through the coupling 10 and the connecting rod in turn. The transmission plate 3 is disc-shaped, and is slidably connected to the support plate 7 . The support plate 7 is located between the transmission plate 3 and the fixed plate 8, the plane bearing 4 is arranged between the transmission plate 3 and the transmission plate 3, and the through hole and the connecting rod are arranged. The cylindrical roller bearing 5 effectively reduces the friction and wear between the transmission plate 3 and the support plate 7 and the friction and wear between the support plate 7 and the connecting rod.

The fixed plate 8 is disposed on the side of the support mechanism 11 close to the printing and forming module, and is sleeved on the support mechanism 11 . One end of the spring 6 is connected to the fixing plate 8 , and the other end is connected to the supporting plate 7 . In this embodiment, the number of the springs 6 is plural. One end of the stud bolt 2 is connected to the surface of the transmission plate 3 away from the support mechanism 11 , and the other end is connected to the printing and forming module. In this embodiment, the number of the springs 6 is also plural.

The printing and forming module includes a forming substrate 1 , and the forming substrate 1 is connected to the stud bolt 2 . In this embodiment, the forming substrate 1 is in the shape of a disk, which is parallel to the transmission plate 3 ; the support plate 7 and the transmission plate 3 are parallel to each other.

During operation, the installation position of the fixed plate 8 relative to the support mechanism 11 is adjusted by the spring 6, so that the rotation center axis of the disk-shaped support plate 7 is parallel to the center axis of the print head, and then by adjusting The stud bolts 2 make the surface of the forming substrate 1 parallel to the movement plane of the printing nozzle. At the same time, the motor 12 is started, and its rotational motion is transmitted to the transmission plate 3 through the coupling 10 and the connecting rod in turn, and then the rotational motion of the transmission plate 3 is transmitted to the transmission plate 3 through the stud bolt 2 . By forming the substrate 1, the printing method of the polar coordinates of the forming platform is realized. The central axis of the motor 12 coincides with the central axis of the forming substrate 1 and is parallel to the central axis of the printing nozzle, and the printing nozzle is perpendicular to the forming substrate 1, thereby ensuring that the printing nozzle is The forming substrate is contacted at an angle of 90°, which effectively reduces the printing problem caused by the non-perpendicular nozzle and the forming substrate 1 during printing, and ensures the printing quality of the printer.

The present invention also provides a polar coordinate 3D printer, the printer includes a printing nozzle and the above-mentioned forming platform, the forming substrate and the printing nozzle are in a vertical state of 90°, and the central axis of the forming substrate and the The central axes of the print nozzles are parallel.

The present invention provides a forming platform and a polar coordinate 3D printer having the forming platform, wherein the forming platform adjusts the installation position of the fixed plate relative to the supporting mechanism through the spring, so that the disc-shaped supporting plate is The central axis of rotation is parallel to the central axis of the printing nozzle, and then the surface of the forming substrate is parallel to the moving plane of the printing nozzle by adjusting the stud bolts, and the central axis of the forming substrate is parallel to the moving plane of the printing nozzle. The central axis is parallel, so that the printing nozzle and the forming substrate are in a 90° vertical state, which avoids the problem of poor contact between the nozzle and the forming substrate, ensures the quality of the model, and has a simple structure.

Those skilled in the art can easily understand that the above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention, etc., All should be included within the protection scope of the present invention.

Claims (10)

1. The utility model provides a shaping platform, its is applicable to polar coordinates 3D printer which characterized in that:

the forming platform comprises a supporting mechanism, a fixing flat plate, a spring, a supporting flat plate, a transmission flat plate and a forming substrate, wherein the forming substrate is connected with the transmission flat plate, and the transmission flat plate is connected with the supporting flat plate in a sliding manner; the surface of the transmission flat plate facing the supporting mechanism is connected to one end of a stepped connecting rod, and the other end of the connecting rod penetrates through the supporting flat plate and then extends into the supporting mechanism; the forming substrate, the transmission flat plate and the support flat plate are parallel to each other; the fixed flat plate is sleeved on one end of the supporting mechanism adjacent to the supporting flat plate; two ends of the spring are respectively connected to the fixed flat plate and the supporting flat plate;

adjusting the installation position of the fixed flat plate relative to the supporting mechanism through the spring to enable the rotation central axis of the disc-shaped supporting flat plate to be parallel to the central axis of a printing spray head, and further enabling the surface of the forming substrate to be parallel to the movement plane of the printing spray head through adjusting a stud bolt connected to the forming substrate; wherein, the both ends of stud connect respectively in the shaping base plate reaches the transmission is dull and stereotyped.

2. The modeling platform of claim 1, wherein: the supporting mechanism is cylindrical; the forming platform further comprises a motor and a coupler, an output shaft of the motor extends into the supporting mechanism and then is connected to the coupler, and the coupler is connected to the other end of the connecting rod.

3. The modeling platform of claim 2, wherein: the central axis of the motor coincides with the central axis of the molding substrate.

4. The modeling platform of claim 2, wherein: the forming platform further comprises a water cooler, the water cooler is contained in the supporting mechanism and sleeved on the connecting rod.

5. The modeling platform of claim 1, wherein: the forming platform further comprises a cylindrical roller bearing, and the cylindrical roller bearing is arranged between the connecting rod and the supporting flat plate.

6. The modeling platform of claim 1, wherein: the forming platform further comprises a plane bearing, and the plane bearing is arranged between the transmission flat plate and the supporting flat plate.

7. The modeling platform of claim 1, wherein: the forming platform comprises a plurality of stud bolts, and two ends of each stud bolt are respectively connected to the transmission flat plate and the forming substrate.

8. The modeling platform of claim 7, wherein: the plurality of stud bolts are uniformly arranged around the central shaft of the forming substrate.

9. The modeling platform of any of claims 1-8, wherein: the number of the springs is multiple, and the springs are uniformly distributed around the central shaft of the support flat plate.

10. The utility model provides a polar coordinates 3D printer, its characterized in that including printing the shower nozzle:

the printer further comprises the forming platform of any one of claims 1 to 9, wherein the central axis of the forming substrate is parallel to the central axis of the printing nozzle, i.e. the printing nozzle is perpendicular to the forming substrate by 90 degrees.

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