CN220720280U

CN220720280U - Miniature 3D printer

Info

Publication number: CN220720280U
Application number: CN202322414211.7U
Authority: CN
Inventors: 潘鹏兆; 朱平; 蔡慧伟
Original assignee: Taizhou Xinsen Additive Manufacturing Co ltd
Current assignee: Taizhou Xinsen Additive Manufacturing Co ltd
Priority date: 2023-09-05
Filing date: 2023-09-05
Publication date: 2024-04-05
Anticipated expiration: 2033-09-05

Abstract

The utility model discloses a miniature 3D printer which comprises a shell, a Z-axis movement mechanism, a Y-axis movement mechanism, an X-axis movement mechanism and an extruder, wherein the Z-axis movement mechanism comprises a working platform assembly and a Z-axis screw rod, one end of the Z-axis screw rod is provided with a Z-axis motor, and the Z-axis motor is in transmission connection with the Z-axis screw rod and is detachably connected with the shell. The working platform assembly comprises a connecting piece and a working platform, wherein the connecting piece comprises a first plate body and a second plate body, the first plate body is symmetrically arranged, a single plate body is fixed at the middle position between the first plate bodies through screws, a Z-axis screw nut is fixed in a through hole of the second plate body, and the working platform is arranged on the first plate body. When the whole set of driving mechanism is required to be disassembled, screws between the second plate body and the first plate body are screwed out, so that the Z-axis screw nut and the working platform assembly are separated, the driving mechanism can be rapidly disassembled from the working platform assembly, the whole set of driving mechanism is convenient to replace according to the speed of the 3D printing required to move up and down, and the printing requirement is met.

Description

Miniature 3D printer

Technical Field

The utility model belongs to the technical field of 3D printing, and particularly relates to a miniature 3D printer.

Background

A 3D printer, a machine of rapid prototyping technology, is a technology for constructing objects by using bondable materials such as powder metal or plastic based on digital model files through a layer-by-layer printing manner, and the three-dimensional printer of the prior art is mainly classified into Fused Deposition Modeling (FDM), selective Laser Sintering (SLS), stereolithography (SLA), and Digital Light Processing (DLP).

The prior art discloses 2019.06.20 and names a desktop type miniature 3D printer (application publication number: CN 110341183A), which comprises a shell, a Z-axis motion mechanism, a Y-axis motion mechanism, an X-axis motion mechanism and an extruder, wherein the Z-axis motion mechanism comprises a working platform component arranged in the shell and a Z-axis screw rod vertically arranged in the shell, and a Z-axis screw nut which is suitable for the Z-axis screw rod is arranged on the platform component.

To the motor of different models, the diameter that adopts Z axle screw is different, and the Z axle screw that suits to set up also is different, needs to change the actuating mechanism that a whole set of by Z axle motor, Z axle screw and Z axle screw constitute this moment, how to dismantle actuating mechanism fast from work platform subassembly is the technical problem that the technical staff need solve.

Disclosure of Invention

The utility model aims to solve the technical problems in the prior art and provides a miniature 3D printer, which can rapidly detach a driving mechanism from a working platform assembly, and the whole set of driving mechanism is convenient to replace according to the up-and-down moving speed required by 3D printing, so as to meet the printing requirement.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a miniature 3D printer, which comprises a housing, Z axle motion, Y axle motion, X axle motion and extruder, Z axle motion is including setting up the work platform subassembly in the casing and the vertical Z axle lead screw that sets up in the casing, Z axle lead screw and casing rotate to be connected, work platform subassembly is equipped with the Z axle screw that suits with Z axle lead screw, work platform subassembly and casing sliding connection, the one end of Z axle lead screw is equipped with the Z axle motor, the Z axle motor is connected with the transmission of Z axle lead screw, and can dismantle with the casing and be connected. The method is characterized in that: the working platform assembly comprises a connecting piece and a working platform, wherein the connecting piece comprises a first plate body and a second plate body, the first plate body is symmetrically arranged, a single plate body is fixed at the middle position between the first plate bodies through screws, a Z-axis screw nut is fixed in a through hole of the second plate body, and the working platform is arranged on the first plate body. When the whole set of driving mechanism is required to be disassembled, screws between the second plate body and the first plate body are screwed out, so that the Z-axis screw nut and the working platform assembly are separated, the driving mechanism can be rapidly disassembled from the working platform assembly, the whole set of driving mechanism is convenient to replace according to the speed of the 3D printing required to move up and down, and the printing requirement is met.

Further, the first plate body is provided with a first connecting part, the first connecting part and the first plate body form a notch, the second plate body is provided with a second connecting part, the second connecting part and the first plate body form a notch, the second connecting part is embedded into the first notch, the first connecting part is embedded into the second notch, and the screw is arranged on the first connecting part and the second connecting part. The first plate body and the second plate body are mutually embedded and fixed, the firmness of connection between the first plate body and the second plate body is improved, the stress capability of the second plate body is improved, and the driving of the Z-axis screw nut to the whole working platform assembly is met.

Further, the outside of plate body one is fixed with the limiting plate, and the limiting plate is equipped with spacing arch, and spacing bellied thickness is greater than plate body one for work platform location is in plate body one's design position department, convenient quick installation work platform.

Further, the casing includes interconnect's curb plate, roof, front bezel and backplate, and a cavity is enclosed to curb plate, roof, front bezel and backplate for the casing is pieced together and is formed, is convenient for install Z axle motion, Y axle motion, X axle motion and extruder.

Further, the bottom of casing is equipped with the backplate, and the downside of backplate is located to the Z axle motor, and the backplate plays the effect of protection to the Z axle motor.

Further, the inside of backplate is equipped with the fixed plate, is equipped with the strengthening rib between fixed plate and the curb plate, increases the fastness between fixed plate and the curb plate, and the backplate keeps the horizontality to fix on the fixed plate through the screw, make backplate installation firm, give full play to the effect of backplate.

Further, the fan is installed to the below of backplate, and the backplate is equipped with the louvre, and fan and louvre correspond the setting, dispel the heat to the space below the backplate through the fan.

Further, the top of curb plate, front bezel and backplate is equipped with connecting frame, and Z axle motion, Y axle motion, X axle motion and extruder set up on connecting frame, and connecting frame is equipped with the mounting hole, and mounting hole and cavity intercommunication enable Z axle motion, Y axle motion, X axle motion and extruder to concentrate the installation, improve installation quality.

Further, the backboard is provided with a wire feeding frame, the wire feeding frame is wound with consumable materials, the backboard is fixed with a mounting frame, and the wire feeding frame rotates on the mounting frame and is used for continuously conveying the consumable materials.

Further, the mounting bracket includes fixing base and mounting panel, and the mounting panel passes through screw and fixing base fixed connection, and the fixing base passes through the screw fixation on the backplate, and send the silk frame to be equipped with spacing hole, and in fixing base and mounting panel stretched into spacing hole, the both sides of mounting panel were equipped with the arc surface, and the inboard of sending the silk frame and the clearance that exists between the arc surface, the outer end of mounting panel was equipped with spacing portion, and under sending silk frame gravity effect, spacing portion supported and leaned on the outside of sending the silk frame for send the silk frame to install on the mounting bracket, and spacing regional rotation between spacing portion and backplate. The wire feeding frame can be horizontally arranged, the consumable conveying stability is improved, the wire feeding frame can be ensured to smoothly rotate on the mounting frame, and the whole wire feeding frame is convenient to install or take out.

Due to the adoption of the technical scheme, the utility model has the following beneficial effects:

according to the utility model, when the whole set of driving mechanism is required to be disassembled, screws between the second plate body and the first plate body are unscrewed, so that the Z-axis screw nut and the working platform assembly are separated, the Z-axis motor is disassembled from the machine shell, the driving mechanism can be rapidly disassembled from the working platform assembly, the whole set of driving mechanism is convenient to replace according to the up-and-down moving speed required by 3D printing, the second plate body is fixed at the middle position between the first plate bodies again through the screws, the Z-axis motor is installed on the machine shell, and the up-and-down moving speed of the working platform assembly is controlled through the Z-axis motor, so that the printing requirement is met.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic diagram of a micro 3D printer according to the present utility model;

FIG. 2 is a schematic view of a connector according to the present utility model;

FIG. 3 is a schematic view of a working platform according to the present utility model;

FIG. 4 is a schematic view of a first plate of the present utility model;

FIG. 5 is a schematic view of a connection structure between a Z-axis nut and a second plate in the present utility model;

FIG. 6 is a schematic view of the structure of the guard plate in the present utility model;

FIG. 7 is a schematic view of the attachment of the shield and fan of the present utility model;

FIG. 8 is a schematic view of the structure of the present utility model with the top plate removed;

FIG. 9 is a schematic view of a side plate according to the present utility model;

FIG. 10 is a schematic view of a mounting bracket mounted on a back plate according to the present utility model;

FIG. 11 is a schematic view of the structure of the mounting frame of the present utility model;

FIG. 12 is a schematic view of a wire feeder of the present utility model;

FIG. 13 is a schematic view of the connection between the wire feeder and the mounting bracket of the present utility model;

fig. 14 is a schematic structural view of a connection frame in the present utility model.

In the figure, 1-a shell; a 2-Z axis motion mechanism; a 3-Y axis movement mechanism; a 4-X axis movement mechanism; 5-an extruder; 6-Z axis screw nut; 7-a working platform; 8-a first plate body; 9-a second plate body; 10-through holes; 11-limiting plates; 12-limiting protrusions; 13-first connection; 14-notch one; 15-a second connecting part; 16-notch II; 17-guard board; 18-heat dissipation holes; 19-a fan; 20-side plates; 21-a front plate; 22-top plate; 23-a back plate; 24-wire feeding frame; 25-Z axis screw rods; 26-a fixed plate; 27-reinforcing ribs; 28-mounting rack; 29-a fixed seat; 30-mounting plates; 31-arc surface; 32-a limiting part; 33-limiting holes; 34-connecting the frames; 35-mounting holes.

Detailed Description

As shown in fig. 1 to 14, the miniature 3D printer of the present utility model has the advantages of simple and compact overall structure, small volume and convenient transportation, and embodies the miniature characteristics, and specifically includes a casing 1, a Z-axis movement mechanism 2, a Y-axis movement mechanism 3, an X-axis movement mechanism 4 and an extruder 5.

The Z-axis movement mechanism 2 comprises a working platform assembly arranged in the machine shell 1 and a Z-axis screw rod 25 vertically arranged in the machine shell 1, wherein the Z-axis screw rod 25 is connected with the machine shell 1 in a rotating way, the working platform assembly is provided with a Z-axis screw nut 6 which is matched with the Z-axis screw rod 25, the working platform assembly is in sliding connection with the machine shell 1, one end of the Z-axis screw rod 25 is provided with a Z-axis motor, the Z-axis motor is connected with the Z-axis screw rod 25 in a transmission way, the Z-axis screw rod 25, the Z-axis motor and the Z-axis screw nut 6 form a whole set of driving mechanism, and the Z-axis screw rod 25 rotates to enable the Z-axis screw nut 6 to vertically reciprocate on the Z-axis screw rod 25. The Y-axis motion mechanism 3, the X-axis motion mechanism 4 and the extruder 5 in the present utility model are patent applications of the present utility model, and specific reference names are a desktop micro 3D printer (application publication number: CN110341183 a), and the present utility model is not specifically described for the Y-axis motion mechanism 3 and the X-axis motion mechanism 4.

The working platform assembly comprises a connecting piece and a working platform 7, wherein the connecting piece comprises a first plate body 8 and a second plate body 9, the first plate body 8 and the second plate body 9 are symmetrically arranged, a single second plate body 9 is fixed at the middle position between the first plate body 8 through screws, the first plate body 8 is provided with a first connecting part 13, the first connecting part 13 and the first plate body 8 form a notch 14, the second plate body 9 is provided with a second connecting part 15, the second connecting part 15 and the first plate body 8 form a notch 16, the second connecting part 15 is embedded into the notch 14, the first connecting part 13 is embedded into the notch 16, the screws are arranged on the first connecting part 13 and the second connecting part 15, so that the first plate body 8 and the second plate body 9 are mutually embedded and fixed, the connection firmness between the first plate body 8 and the second plate body 9 is improved, the stress capability of the second plate body 9 is improved, and the driving of the whole working platform 7 assembly of a Z-axis screw 6 is met. The Z-axis screw 6 is fixed in a through hole 10 of the second plate body 9, the Z-axis screw 6 and the second plate body 9 are fixed through screws, the working platform 7 is arranged on the first plate body 8, and the working platform 7 and the first plate body 8 are connected through bolt rods. The limiting plate 11 is fixed on the outer side of the first plate body 8, the limiting plate 11 is provided with the limiting protrusion 12, and the thickness of the limiting protrusion 12 is larger than that of the first plate body 8, so that the working platform 7 is positioned at the designed position of the first plate body 8, and the working platform 7 can be conveniently and rapidly installed. When the whole set of driving mechanism is required to be disassembled, screws between the second plate body 9 and the first plate body 8 are screwed out, so that the Z-axis screw 6 and the working platform 7 assembly are separated, the driving mechanism can be rapidly disassembled from the working platform 7 assembly, the whole set of driving mechanism is convenient to replace according to the speed of up-down movement required by 3D printing, and the printing requirement is met.

The casing 1 comprises a side plate 20, a top plate 22, a front plate 21 and a back plate 23 which are connected with each other, wherein the side plate 20, the top plate 22, the front plate 21 and the back plate 23 enclose a cavity, so that the casing 1 is formed by block assembly, and the Z-axis movement mechanism 2, the Y-axis movement mechanism 3, the X-axis movement mechanism 4 and the extruder 5 are convenient to install. The top of curb plate 20, front bezel 21 and backplate 23 is equipped with connecting frame 34, and Z axle motion 2, Y axle motion 3, X axle motion 4 and extruder 5 set up on connecting frame 34, and connecting frame 34 is equipped with mounting hole 35, and mounting hole 35 and cavity intercommunication enable Z axle motion 2, Y axle motion 3, X axle motion 4 and extruder 5 concentrated installation, improve installation quality.

The bottom of the shell 1 is provided with a guard plate 17, the Z-axis motor is arranged on the lower side of the guard plate 17, and the guard plate 17 plays a role in protecting the Z-axis motor. The mounting mode of the guard plate 17 is specifically designed as follows: the inside of the side plate 20 is provided with the fixed plate 26, the reinforcing ribs 27 are arranged between the fixed plate 26 and the side plate 20, the firmness between the fixed plate 26 and the side plate 20 is improved, the guard plate 17 is kept in a horizontal state, and the guard plate 17 is fixed on the fixed plate 26 through screws, so that the guard plate 17 is firmly installed, and the function of the guard plate 17 is fully exerted. A fan 19 is installed below the guard plate 17, the guard plate 17 is provided with a heat radiation hole 18, the fan 19 and the heat radiation hole 18 are correspondingly arranged, and the space below the guard plate 17 is radiated by the fan 19.

The back plate 23 is provided with a wire feeding frame 24, the wire feeding frame 24 is wound with consumable materials, the back plate 23 is fixed with a mounting frame 28, and the wire feeding frame 24 rotates on the mounting frame 28 and is used for continuously conveying the consumable materials. The mounting bracket 28 includes fixing base 29 and mounting panel 30, and mounting panel 30 passes through screw and fixing base 29 fixed connection, and fixing base 29 passes through the screw fixation on backplate 23. The wire feeding frame 24 is provided with a limiting hole 33, the fixing seat 29 and the mounting plate 30 extend into the limiting hole 33, arc surfaces 31 are arranged on two sides of the mounting plate 30, a gap exists between the inner side of the wire feeding frame 24 and the arc surfaces 31, the outer end of the mounting plate 30 is provided with a limiting part 32, and under the action of gravity of the wire feeding frame 24, the limiting part 32 abuts against the outer side of the wire feeding frame 24, so that the wire feeding frame 24 is mounted on the mounting frame 28 and is limited to rotate in an area between the limiting part 32 and the backboard 23. The wire feeding frame 24 can be horizontally arranged, the consumable conveying stability is improved, the wire feeding frame 24 can be guaranteed to smoothly rotate on the mounting frame 28, and when the whole wire feeding frame 24 needs to be taken out, upward acting force is applied to the wire feeding frame 24, and the limiting part 32 does not act on the outer side of the wire feeding frame 24, so that the whole wire feeding frame 24 can be taken out from the mounting frame 28.

The above is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications and the like made on the basis of the present utility model to solve the substantially same technical problems and achieve the substantially same technical effects are included in the scope of the present utility model.

Claims

1. The miniature 3D printer comprises a shell, a Z-axis motion mechanism, a Y-axis motion mechanism, an X-axis motion mechanism and an extruder, wherein the Z-axis motion mechanism comprises a working platform assembly arranged in the shell and a Z-axis screw rod vertically arranged in the shell, the Z-axis screw rod is rotationally connected with the shell, the working platform assembly is provided with a Z-axis screw nut which is matched with the Z-axis screw rod, the working platform assembly is in sliding connection with the shell, one end of the Z-axis screw rod is provided with a Z-axis motor, and the Z-axis motor is in transmission connection with the Z-axis screw rod and is detachably connected with the shell;

the method is characterized in that: the working platform assembly comprises a connecting piece and a working platform, wherein the connecting piece comprises a first plate body and a second plate body, the first plate body is symmetrically arranged, the second plate body is fixed at the middle position between the first plate body through screws, the Z-axis screw nut is fixed in a through hole of the second plate body, and the working platform is arranged on the first plate body.

2. The miniature 3D printer of claim 1, wherein: the first connecting part is arranged on the first plate body, the first connecting part and the first plate body form a notch, the second connecting part is arranged on the second plate body, the second connecting part and the first plate body form a notch, the second connecting part is embedded into the first notch, the first connecting part is embedded into the second notch, and the screw is arranged on the first connecting part and the second connecting part.

3. The miniature 3D printer of claim 1, wherein: the limiting plate is fixed on the outer side of the first plate body, the limiting plate is provided with a limiting protrusion, and the thickness of the limiting protrusion is larger than that of the first plate body.

4. The miniature 3D printer of claim 1, wherein: the shell comprises a side plate, a top plate, a front plate and a back plate which are connected with each other, wherein the side plate, the top plate, the front plate and the back plate enclose a cavity.

5. The miniature 3D printer of claim 4, wherein: the bottom of casing is equipped with the backplate, Z axle motor locates the downside of backplate.

6. The miniature 3D printer of claim 5, wherein: the inner side of the side plate is provided with a fixing plate, a reinforcing rib is arranged between the fixing plate and the side plate, and the guard plate is kept in a horizontal state and is fixed on the fixing plate through screws.

7. The miniature 3D printer of claim 5, wherein: the fan is installed to the below of backplate, the backplate is equipped with the louvre, the fan with the louvre corresponds the setting.

8. The miniature 3D printer of claim 4, wherein: the top of curb plate front bezel with the backplate is equipped with the linking frame, Z axle motion, Y axle motion, X axle motion with the extruder sets up on the linking frame, linking frame is equipped with the mounting hole, the mounting hole with the cavity intercommunication.

9. The miniature 3D printer of claim 4, wherein: the backboard is provided with a wire feeding frame, the wire feeding frame is wound with consumable materials, the backboard is fixedly provided with a mounting frame, and the wire feeding frame rotates on the mounting frame and is used for conveying the consumable materials.

10. The miniature 3D printer of claim 9, wherein: the mounting frame comprises a fixing seat and a mounting plate, wherein the mounting plate is fixedly connected with the fixing seat through a screw, the fixing seat is fixed on the back plate through a screw, a limiting hole is formed in the wire feeding frame, the fixing seat and the mounting plate extend into the limiting hole, arc surfaces are arranged on two sides of the mounting plate, a gap exists between the inner side of the wire feeding frame and the arc surfaces, a limiting part is arranged at the outer end of the mounting plate, and under the action of gravity of the wire feeding frame, the limiting part abuts against the outer side of the wire feeding frame, so that the wire feeding frame is mounted on the mounting frame, and is limited to rotate in an area between the limiting part and the back plate.