CN212528711U

CN212528711U - 3D printer

Info

Publication number: CN212528711U
Application number: CN202022111313.8U
Authority: CN
Inventors: 刘辉林; 唐京科; 陈春; 敖丹军; 严罗林
Original assignee: Shenzhen Chuangxiang 3D Technology Co Ltd
Current assignee: Shenzhen Chuangxiang 3D Technology Co Ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-02-12
Anticipated expiration: 2030-09-23

Abstract

The utility model discloses a 3D printer, which comprises a triangular prism-shaped frame, a spray head moving assembly arranged on the triangular prism-shaped frame, a spray head assembly arranged on the spray head moving assembly, a feeding assembly, a material breaking detection assembly, a display assembly and a power supply main board assembly, wherein the feeding assembly, the material breaking detection assembly and the display assembly are arranged on the triangular prism-shaped frame; the power supply main board assembly is electrically connected with the spray head moving assembly, the spray head assembly, the feeding assembly, the material breakage detection assembly and the display assembly; the 3D printer of this application has the triangular prism shape frame, and triangular prism shape frame bottom is provided with drive assembly, and the belt conveying through drive assembly reaches infinite length and prints.

Description

3D printer

Technical Field

The utility model relates to a 3D prints technical field, especially relates to a 3D printer.

Background

The 3D printing technology, also known as additive manufacturing technology or rapid prototyping technology, is a technology for constructing an entity by using a layer-by-layer printing method using a sticky material, such as metal or plastic powder, plastic wire, photosensitive resin, etc., based on a 3D digital model. The method comprises the basic steps of using a computer to construct a 3D model, slicing the 3D model to divide the 3D model into hundreds of thin layers, and finally using a 3D printer to print the thin layers layer by layer until the thin layers are overlapped to form an entity. Compared to conventional manufacturing techniques, 3D printing techniques have several significant advantages: no mechanical processing or any die is needed, so that the manufacturing time and the material cost are greatly reduced; due to the characteristics of layer-by-layer processing and cumulative molding, the manufacturing is hardly limited by the structural complexity; the model design is very simple and can be changed at any time according to the personalized requirements of the user. However, the current 3D printing apparatus has a problem of low flexibility, and the structure needs to be adjusted to increase printing efficiency.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

In order to meet the requirements, the utility model aims to provide a 3D printer.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

A3D printer comprises a triangular prism-shaped frame, a spray head moving assembly arranged on the triangular prism-shaped frame, a spray head assembly arranged on the spray head moving assembly, a feeding assembly, a material breakage detection assembly, a display assembly and a power supply main board assembly, wherein the feeding assembly, the material breakage detection assembly, the display assembly and the power supply main board assembly are arranged on the triangular prism-shaped frame; the power supply main board assembly is electrically connected with the spray head moving assembly, the spray head assembly, the feeding assembly, the material breakage detection assembly and the display assembly;

the lower end of the triangular prism-shaped frame is connected with a horizontal working platform, the working platform is provided with a transmission assembly, the transmission assembly is provided with a gasket for 3D printing, the transmission assembly is positioned below the spray head assembly, and the moving direction of the spray head moving assembly and the included angle of the transmission assembly form an acute angle;

the feeding assembly is connected with the spray head assembly and is used for supplying printing raw materials for the spray head assembly.

The belt transmission mechanism comprises a mechanism base frame, a driving wheel assembly arranged on the mechanism base frame, a transmission belt arranged on the driving wheel assembly, a driven wheel assembly connected with the driving wheel assembly through the transmission belt, and a hot bed assembly arranged on the transmission belt.

The heating bed component comprises a heating hot bed board arranged below the transmission belt and an adjusting bottom board used for adjusting the height of the heating hot bed board, and the heating hot bed board is in contact with the transmission belt.

In one possible embodiment, the head moving assembly is installed at one end of a triangular prism-shaped frame.

In a possible embodiment, the spray head moving assembly is connected with an inclination moving assembly, the inclination moving assembly comprises a first belt transmission mechanism installed on the triangular prism-shaped frame, and the transmission direction of the first belt transmission mechanism is consistent with the end face direction of the triangular prism-shaped frame.

In a possible embodiment, the spray head moving assembly comprises a second belt transmission mechanism for driving the spray head assembly to move transversely, and a transmission belt of the second belt transmission mechanism is fixedly connected with the spray head assembly.

In a possible embodiment, the spray head moving assembly is provided with a sliding groove, and the spray head assembly is provided with a pulley which is installed on the sliding groove.

In a possible embodiment, the power supply main board assembly is electrically connected to the first belt transmission mechanism and the second belt transmission mechanism.

In a possible implementation manner, the supply assembly is connected with the spray head assembly, the spray head assembly comprises a 3D printing spray head, and the supply assembly comprises an extruding assembly and a material rack structure.

Compared with the prior art, the beneficial effects of the utility model reside in that: the 3D printer is provided with the triangular prism-shaped frame, the transmission assembly is arranged at the bottom of the triangular prism-shaped frame, infinite length printing is achieved through belt transmission of the transmission assembly, the spray head assembly can flexibly move, so that the working range completely covers the printing platform, printing efficiency can be improved, and the accuracy of a printing process is ensured by the aid of the feeding assembly and the material breakage detection assembly; besides, the display assembly can show the actual conditions in the printing process, and can observe whether the conditions such as material breakage occur or not, so that the stable operation of the equipment can be ensured, and the printing efficiency is ensured.

The invention is further described with reference to the accompanying drawings and specific embodiments.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic structural diagram of a 3D printer according to an embodiment of the present disclosure;

fig. 2 is a schematic rear view of a structure of a 3D printer according to an embodiment of the present disclosure;

fig. 3 is a schematic right view of a structure of a 3D printer according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a belt driving mechanism of a 3D printer according to an embodiment of the disclosure;

FIG. 5 is a schematic axial view from another perspective of a belt drive mechanism (hidden portion of the mechanism base frame) of an embodiment of the 3D printer;

fig. 6 is a schematic axial view of another perspective view of a belt transmission mechanism (hidden part of a transmission belt) according to an embodiment of the 3D printer.

Reference numerals

100 triangular prism shaped frame 101 base structure

102 first tilting lever 103 second tilting lever

104 third tilting bar 105 fourth tilting bar

106 fixed rod 107 corner connector

108 fastener 200 spray head moving assembly

201 first pulley 202 chute

203 sliding channel 300 showerhead assembly

301 second pulley 400 feed assembly

500 display assembly 600 work platform

700 drive assembly 701 shim

702 mechanism base frame 703 driving belt

704 drive motor 705 drive pulley

706 synchronous belt 707 rubber covered roller

708 moving roller 709 driven shaft

710 adjusting installation block 711 heating hot bed board

712 adjustment of the baseplate 713 mounting blocks

714 adjusting knob 800 tilt movement assembly

801 first belt transmission mechanism A driving wheel assembly

B driven wheel assembly and C heating bed assembly

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "secured" are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer 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. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Referring to fig. 1 to 6, fig. 1 is a schematic structural diagram of an embodiment of a 3D printer, fig. 2 is a schematic structural rear view of an embodiment of a 3D printer, fig. 3 is a schematic structural right view of an embodiment of a 3D printer, fig. 4 is a schematic structural belt transmission mechanism of an embodiment of a 3D printer, fig. 5 is a schematic structural belt transmission mechanism (hidden part mechanism base frame) of an embodiment of a 3D printer, fig. 6 is a schematic structural belt transmission mechanism (hidden part transmission belt) of an embodiment of a 3D printer, and the 3D printer includes a triangular prism frame 100, a nozzle moving assembly 200 installed on the triangular prism frame 100, a head assembly 300 mounted on the head moving assembly 200, a supply assembly 400 mounted on the triangular prism frame 100, a material breakage detection assembly (not shown in the drawings, and may be integrated with the head assembly 300), a display assembly 500, and a power supply main board assembly (not shown in the drawings, and may be a controller according to the related art); the power supply main board assembly is electrically connected with the spray head moving assembly 200, the spray head assembly 300, the feeding assembly 400, the material breakage detection assembly and the display assembly 500; specifically, the supply assembly 400 is connected to the nozzle assembly 300, the supply assembly 400 is used for supplying printing materials to the nozzle assembly 300, the nozzle assembly 300 includes a 3D printing nozzle, and the supply assembly 400 includes an extruding assembly and a rack structure, wherein the rack structure can be configured to be a cylindrical roll shape.

In an embodiment, a horizontal working platform 600 is connected to the lower end of the triangular prism-shaped frame 100, a transmission assembly 700 is installed on the working platform 600, and a gasket 701 for 3D printing is installed on the transmission assembly 700, wherein the gasket 701 may be made of glass. The driving assembly 700 is located below the spray head assembly 300, and the moving direction of the spray head moving assembly 200 and the driving assembly form an included angle of 10-80 degrees, preferably 45 degrees.

In one embodiment, the driving assembly 700 is a belt driving mechanism, and the driving assembly 700 is mounted to the work platform 600 by a fastener.

In one embodiment, in order to enable the head assembly 300 to be moved in position in a spatial rectangular coordinate system with respect to the driving assembly 700, thereby implementing 3D printing on the pad 701, the head moving assembly 200 is installed at one end of the triangular prism frame 100, and the output direction of the head assembly 300 is directed toward the pad 701, wherein the head assembly 300 may include a rotatable head, thereby implementing printing at a plurality of angles.

In one embodiment, the head moving assembly 200 is connected with a tilting moving assembly 800, the tilting moving assembly 800 includes a first belt transmission mechanism 801 installed on the triangular prism-shaped frame 100, and the transmission direction of the first belt transmission mechanism 801 is consistent with the end face direction of the triangular prism-shaped frame 100. The first transmission mechanism 801 can drive the spray head moving assembly 200 to move in the prism direction of the triangular prism-shaped frame 100.

Since the printing needs to be matched with the transverse movement, the nozzle moving assembly 200 includes a second belt transmission mechanism for driving the nozzle assembly 300 to move transversely, a transmission belt of the second belt transmission mechanism is fixedly connected with the nozzle assembly 300, and the nozzle moving assembly 200 is provided with a sliding groove 202. The spray head assembly 300 is provided with a second pulley 301, and the second pulley 301 is arranged on the sliding groove 202, so that the transverse movement is realized.

In order to control the above components, the power supply main board assembly is electrically connected to the first belt transmission mechanism 801 and the second belt transmission mechanism, and the power supply main board assembly can control the head moving assembly 200 and the head assembly 300 to work together according to the received print data.

In an embodiment, since the 3D printer of the present application needs to use the triangular prism-shaped frame 100 as an operation carrier, the structure thereof will now be described in detail: the triangular prism frame 100 includes a base structure 101, a first tilt lever 102, a second tilt lever 103, a third tilt lever 104, and a fourth tilt lever 105 mounted to the base structure 101; the first tilting lever 102 and the second tilting lever 103 are located at the left end of the base structure 100, the third tilting lever 104 and the fourth tilting lever 105 are located at the right end of the base structure 101, the first tilting lever 102 is connected with the third tilting lever 104, and the second tilting lever 103 is connected with the fourth tilting lever 105;

a fixed rod 106 is arranged at the position where the first inclined rod 102 is connected with the third inclined rod 104, and the other end of the fixed rod 106 is fixed at the position where the second inclined rod 103 is connected with the fourth inclined rod 105;

the third inclined rod 104 and the fourth inclined rod 105 are connected with a transverse moving rod (namely, a structural base of the spray head moving assembly 200), the moving rod is provided with a first pulley 201, the third inclined rod 104 and the fourth inclined rod 105 are both provided with a sliding groove 203 for the sliding of the first pulley 201, the first pulley 201 is installed in the sliding groove 203, the spray head assembly 300 is installed on the moving rod, and the spray head assembly 300 is connected with the moving rod in a sliding manner, so that the spray head assembly 300 is driven to move.

In one embodiment, in order to fix the tilting rod to the base structure, the first tilting rod 102 and the second tilting rod 103 are mounted with an angle bracket 107 at the position where they are connected to the base structure 101. The third inclined rod 104 and the fourth inclined rod 105 are provided with fasteners 108 at the positions connected to the base structure 101, wherein the fasteners may be screws, nuts, and fixing blocks provided with threaded holes.

In one embodiment, the first tilting rod 102 is parallel to the second tilting rod 103, and the angle between the first tilting rod 102 and the base structure 101 is 10-80 degrees, preferably 45 degrees, and other angles can be used.

On the other hand, since the 3D printer of the present application needs to cooperate with the transmission assembly 700 (i.e. a belt transmission mechanism later) to work, so as to achieve a better printing effect, a specific structure of the belt transmission mechanism is described, where the belt transmission mechanism includes a mechanism base frame 702, a driving wheel assembly a mounted on the mechanism base frame 702, a transmission belt 703 mounted on the driving wheel assembly a, a driven wheel assembly B connected with the driving wheel assembly through the transmission belt 703, and a hot bed assembly C mounted on the transmission belt 703; wherein, the hot bed component C is also provided with a heater for realizing heating.

The driving wheel assembly A comprises a driving motor 704, a driving belt wheel 705 connected with the output end of the driving motor 704, a synchronous belt 706 arranged on the driving belt wheel 705, and an rubber covered roller 707 connected with the driving belt 703; the driven wheel assembly B comprises a driven roller cylinder 708, a driven shaft 709 mounted on the driven roller cylinder 708, and an adjusting and mounting block 710 connected with the driven shaft 709.

The hot bed component C comprises a heating hot bed plate 711 arranged below the transmission belt 703, the heating hot bed plate 711 is connected with an adjusting bottom plate 712, and the heating hot bed plate 711 is in contact with the transmission belt 703, so that the lifting of the transmission belt 703 can be realized. The adjusting bottom plate 712 is mounted on the mechanism base frame 702 through an adjusting rod, a locking nut and an adjusting knob 714, and a user can adjust the height of the driving belt 703 through the adjusting knob 714 to achieve the purpose of printing and leveling. In some embodiments, the adjusting knob 714 can lift the adjusting rod, so as to drive the heating bed plate 711 to lift up and down, thereby achieving the adjusting function.

In one embodiment, the driving motor 704 is a speed-reducing stepping motor, the rubber covered roller 707 is mounted on the mechanism base frame 702 through a mounting block 713, in order to enable the rubber covered roller 707 to stably rotate, the mounting block 713 is provided with a mounting groove for mounting a bearing, and the rubber covered roller 707 is mounted on the mounting block 713 through a bearing. The rubber covered roller 707 is used for driving the driven shaft to rotate, so that the driving force of the driving motor 704 needs to be obtained, and the rubber covered roller 707 is in transmission connection with the driving belt wheel 705 through a synchronous belt 706. Corresponding to the mounting block 713, the adjusting mounting block 710 is mounted to the mechanism base frame 702 through a fastener, and the driven shaft is mounted to the adjusting mounting block 710 through a bearing, so that both ends of the belt transmission mechanism are fixed, and the printer can obtain a printing platform which can stably work.

In summary, the 3D printer of the present application can flexibly move the nozzle assembly to face the printing platform of the transmission assembly and move in the spatial coordinate system of XYZ axes, so as to improve the printing efficiency, and ensure the accuracy of the printing process by using the feeding assembly and the material breakage detection assembly; besides, the display assembly can show the actual conditions in the printing process, and can observe whether the conditions such as material breakage occur or not, so that the stable operation of the equipment can be ensured, and the printing efficiency is ensured.

Various other modifications and changes can be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the protection scope of the present invention.

Claims

1. A3D printer is characterized by comprising a triangular prism-shaped frame, a spray head moving assembly arranged on the triangular prism-shaped frame, a spray head assembly arranged on the spray head moving assembly, a feeding assembly, a material breakage detection assembly, a display assembly and a power supply main board assembly, wherein the feeding assembly, the material breakage detection assembly, the display assembly and the power supply main board assembly are arranged on the triangular prism-shaped frame; the power supply main board assembly is electrically connected with the spray head moving assembly, the spray head assembly, the feeding assembly, the material breakage detection assembly and the display assembly;

the feeding assembly is connected with the spray head assembly and is used for supplying printing raw materials for the spray head assembly;

the transmission assembly is a belt transmission mechanism and is installed on the workbench through a fastener.

2. The 3D printer of claim 1, wherein the triangular prism shape comprises a base structure, a first angled bar, a second angled bar, a third angled bar, and a fourth angled bar mounted to the base structure; the first inclined rod and the second inclined rod are located at the left end of the base structure, the third inclined rod and the fourth inclined rod are located at the right end of the base structure, the first inclined rod is connected with the third inclined rod, and the second inclined rod is connected with the fourth inclined rod.

3. The 3D printer of claim 1, wherein the belt drive mechanism comprises a mechanism base frame, a drive pulley assembly mounted to the mechanism base frame, a drive belt mounted to the drive pulley assembly, a driven pulley assembly connected to the drive pulley assembly via the drive belt, and a hot bed assembly mounted to the drive belt.

4. The 3D printer of claim 3, wherein the thermal bed assembly comprises a heated thermal bed plate mounted below a drive belt, an adjustment floor for adjusting a height of the heated thermal bed plate, the heated thermal bed plate in contact with the drive belt.

5. The 3D printer of claim 1, wherein the jet moving assembly is mounted to one end of a triangular prism frame.

6. The 3D printer according to claim 1, wherein a tilt moving assembly is connected to the head moving assembly, the tilt moving assembly comprising a first belt transmission mechanism installed on the triangular prism-shaped frame, and a transmission direction of the first belt transmission mechanism is consistent with an end face direction of the triangular prism-shaped frame.

7. The 3D printer of claim 6, wherein the nozzle moving assembly comprises a second belt transmission mechanism for driving the nozzle assembly to move transversely, and a transmission belt of the second belt transmission mechanism is fixedly connected with the nozzle assembly.

8. The 3D printer of claim 7, wherein the nozzle moving assembly is provided with a sliding groove, and the nozzle assembly is mounted with a pulley mounted to the sliding groove.

9. The 3D printer of claim 8, wherein the power motherboard assembly is electrically connected to the first belt drive mechanism and the second belt drive mechanism.