CN210132765U

CN210132765U - 3D printing device

Info

Publication number: CN210132765U
Application number: CN201920936907.7U
Authority: CN
Inventors: 赵仕伟; 肖济忠; 肖伟; 陈柏希; 罗影; 张靓
Original assignee: Chengdu Aeronautic Polytechnic
Current assignee: Chengdu Aeronautic Polytechnic
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-03-10
Anticipated expiration: 2029-06-20

Abstract

The utility model discloses a 3D printing device belongs to 3D and prints technical field. A 3D printing device, comprising: the device comprises a horizontal support, a vertical support, a horizontal sliding device, a vertical sliding device and a controller which are connected with each other; the horizontal sliding device comprises a printing platform, a sliding platform and a fine adjustment motor; the printing platform and the sliding platform are arranged at intervals, a plurality of supporting rods are arranged on the bottom wall of the printing platform, and the supporting rods penetrate through the sliding platform; the sliding platform is connected with the horizontal support in a sliding manner; a motor shaft of the fine tuning motor is provided with a sleeve, and the sleeve is in threaded connection with the supporting rod; the vertical sliding device comprises a nozzle, a distance sensor is arranged on the nozzle, and the nozzle and a probe of the distance sensor are respectively arranged opposite to the printing platform; the fine tuning motor and the distance sensor are respectively in communication connection with the controller. The utility model discloses can carry out the leveling to the printing platform automatically, when adjusting through the screw thread, the governing speed is slow, can realize the accurate accent to adjust steadily.

Description

3D printing device

Technical Field

The utility model relates to a 3D prints technical field, concretely relates to 3D printing device.

Background

When the 3D printer is printing article, because the base of piling up the material when having some printers to be used for printing is portable, so all need the people to observe with the naked eye before printing the thing at every turn and carry out the base leveling, if the base does not have the level, the model of printing like this will appear the problem of quality relatively poor. At present, a 3D printer adopts manual operation during leveling, and the leveling is not accurate, so that the quality of a printed finished product is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a 3D printing device to solve current 3D printer and adopt manual operation to carry out the leveling usually, lead to the leveling inaccuracy, the poor problem of finished product quality of printing.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

a 3D printing device, comprising: the device comprises a horizontal support, a vertical support, a horizontal sliding device and a vertical sliding device which are connected with each other, a controller and a control unit, wherein the horizontal support and the vertical support are connected with each other;

the horizontal sliding device comprises a printing platform, a sliding platform and a fine adjustment motor; the printing platform and the sliding platform are arranged at intervals, a plurality of supporting rods are arranged on the bottom wall of the printing platform, and the supporting rods penetrate through the sliding platform; the sliding platform is connected with the horizontal support in a sliding manner; a motor shaft of the fine tuning motor is provided with a sleeve, and the sleeve is in threaded connection with the supporting rod;

the vertical sliding device comprises a nozzle, a distance sensor is arranged on the nozzle, and the nozzle and a probe of the distance sensor are respectively arranged opposite to the printing platform;

the fine tuning motor and the distance sensor are respectively in communication connection with the controller.

The utility model discloses a horizontal slip and vertical slip of horizontal sliding device and vertical sliding device realize 3D printing device's motion jointly, accomplish 3D and print the operation. Print platform on the horizontal installation is used for piling up nozzle spun material, and horizontal slider and vertical slider action back, distance sensor can detect the distance between a plurality of probes to the print platform, through the contrast to a plurality of distance numerical values, can judge whether print platform is the level, if not the level, controller control fine setting motor adjusts print platform. After the fine setting motor works, can drive the sleeve and rotate to make the bracing piece adjust under the effect of screw thread, owing to adjust the height of bracing piece through the screw thread, make the bracing piece at the motion of vertical direction steady, speed slow, can realize the fine setting, make print platform's adjustment more accurate, guarantee the quality of final printed product.

Furthermore, the supporting rod is sleeved with a spring, and two ends of the spring are respectively in contact with the printing platform and the sliding platform.

When the bracing piece passed sliding platform, had the clearance between bracing piece and the sliding platform, the spring was established to the cover on the bracing piece, and when the spring was arranged in between print platform and the sliding platform, was in compression state, and the elasticity of spring is located vertical direction for the bracing piece can move about in vertical direction, can not make the activity direction change because the existence in clearance.

Furthermore, the supporting rod is connected with the printing platform through a ball hinge.

Printing platform is not at ordinary times, and the bracing piece is in the state of out of plumb with printing platform, through ball hinged joint back, when being in different connected state between bracing piece and the printing platform, can both connect.

Furthermore, the number of the supporting rods is 3 or 4, and the supporting rods are arranged in a triangular shape or a quadrangular shape.

Further, the vertical sliding device also comprises an installation plate and a fixed block arranged on the installation plate; the mounting plate is connected with the vertical support in a sliding manner through a connecting rod and is connected with the connecting rod in a sliding manner; the top of the nozzle is connected with the fixed block.

Furthermore, a pressure sensor is arranged at the joint between the nozzle and the fixed block; the pressure sensor is in communication with the controller.

The utility model discloses connect the nozzle through the fixed block, when printing, the nozzle can receive the reaction force of material for the extrusion force has between nozzle and the fixed block. Nozzle and print platform or accumulational material distance are near the time, and the spun material can not pile up, can be to extruding all around, and at this moment, the nozzle receives the reaction force of material also to increase, sets up pressure sensor between nozzle and fixed block, can detect the reaction force that the nozzle received for judge whether the nozzle is too near from print platform or accumulational material, thereby can adjust vertical slider and ensure that the distance is enough, guarantee the printing quality of final product.

Furthermore, a vertical sliding sleeve is arranged on the connecting rod; a screw is arranged on the vertical support; the sliding sleeve is sleeved on the screw rod and is in threaded connection with the screw rod.

Furthermore, a sliding block is arranged on the bottom surface of the sliding platform, and a sliding rod matched with the sliding block is arranged on the horizontal support.

The utility model discloses following beneficial effect has:

(1) the utility model discloses can carry out the leveling to printing platform automatically, when adjusting through the screw thread, the governing speed is slow, can realize the accurate accent to adjust steadily, make printing platform's adjustment more accurate, guarantee the final quality of printing the product.

(2) The utility model discloses can detect nozzle and print platform or pile up the distance between the material to can adjust vertical slider and ensure that the distance is enough, guarantee the printing quality of final product.

Drawings

Fig. 1 and fig. 2 are schematic structural views of a 3D printing apparatus according to the present invention;

fig. 3 is a schematic structural view of the horizontal sliding device of the present invention;

fig. 4 is a schematic structural view of the vertical sliding device of the present invention;

fig. 5 is a schematic view of the connection between the nozzle and the fixing block of the present invention.

In the figure: 10-a horizontal support; 11-a slide bar; 20-a vertical support; 21-screw rod; 30-a horizontal sliding device; 31-a printing platform; 32-a sliding platform; 33-fine tuning the motor; 34-a support bar; 35-a sleeve; 36-a spring; 37-a slide block; 40-a vertical slide; 41-a nozzle; 42-a mounting plate; 43-fixed block; 44-a connecting rod; 45-pressure sensor; 46-a sliding sleeve; 50-distance sensor.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1 and 2, a 3D printing apparatus includes: a horizontal support 10, a vertical support 20 and a controller connected with each other. The horizontal support 10 is provided with a horizontal sliding device 30, and the horizontal sliding device 30 can slide on the horizontal support 10 along the horizontal direction. The vertical support 20 is provided with a vertical sliding device 40, and the vertical sliding device 40 can slide on the vertical support 20 along the vertical direction. In this embodiment, ramps1.4 is used as the controller.

Referring to fig. 3, the horizontal sliding device 30 includes a printing platform 31, a sliding platform 32, and a fine tuning motor 33. The printing stage 31 and the slide stage 32 are disposed opposite to and spaced apart from each other in the vertical direction. The printing platform 31 is used for stacking materials during printing, the bottom wall of the printing platform 31 is connected with a support rod 34 through a ball hinge, the lower end of the support rod 34 penetrates out of the sliding platform 32, and the lower end of the support rod 34 is provided with external threads. The bottom of the sliding platform 32 is provided with a sliding block 37, and the sliding block 37 is in sliding fit with the sliding rod 11 arranged on the horizontal support 10, so that the sliding platform 32 can slide along the direction of the sliding rod 11.

The number of the fine adjustment motors 33 is 4, and the fine adjustment motors are installed at four corners of the sliding platform 32. The motor shaft of fine setting motor 33 is vertical upwards, and the fixed cover in the outside of motor shaft is equipped with sleeve 35, and the inside wall of sleeve 35 has the internal thread, and sleeve 35 also overlaps and establishes on bracing piece 34 and pass through threaded connection, and fine setting motor 33 is when rotating, and bracing piece 34 can be slowly, steadily move in the vertical direction under the promotion of screw thread to adjust printing platform 31. In other embodiments of the present invention, the number of the fine tuning motors 33 can also be 3, 5, 6, etc., and any three fine tuning motors 33 are not on the same line. In the present embodiment, the support rod 34 is square, so that the support rod 34 does not rotate under the action of the fine adjustment motor 33.

Referring to fig. 4 and 5, the vertical sliding device 40 includes a nozzle 41, a mounting plate 42, a fixing block 43, and a connecting rod 44. The two ends of the connecting rod 44 are respectively connected with a sliding sleeve 46, the sliding sleeve 46 is provided with internal threads, the sliding sleeve 46 is sleeved on the screw 21 of the vertical support 20, and the sliding sleeve 46 is in threaded connection with the screw 21. The screw 21 is vertically arranged and both ends of the screw 21 are respectively rotatably connected with the vertical support 20, so that the screw 21 can only rotate and can not move in the axial direction thereof, and the sliding sleeve 46 can be pushed to move in the vertical direction through threads. The mounting plate 42 is fitted over the connecting rod 44 and can slide on the connecting rod 44. The side of fixed block 43 and mounting panel 42 fixed connection, the bottom of fixed block 43 and the top fixed connection of nozzle 41, the junction between fixed block 43 and nozzle 41 is equipped with pressure sensor 45, and the side of fixed block 43 is equipped with distance sensor 50, and distance sensor 50's probe and nozzle 41 all face print platform 31. The nozzle 41 communicates with a material tank (not shown) via a material transfer pipe (not shown).

The sliding between the sliding block 37 and the sliding rod 11, between the sliding sleeve 46 and the screw 21, and between the connecting rod 44 and the mounting plate 42 form a three-axis moving mode, so that the nozzle 41 can spray materials in a three-dimensional space. The sliding connections between the sliding block 37 and the sliding rod 11, between the sliding sleeve 46 and the screw 21, and between the connecting rod 44 and the mounting plate 42 are all connected through motors, each motor (including the fine adjustment motor 33), the pressure sensor 45 and the distance sensor 50 are respectively connected with the controller, the distance sensor 50 detects the distance between the plurality of probes and the printing platform 31, so that whether the printing platform 31 is horizontal can be judged, and the controller controls the fine adjustment motor 33 to work through the received signals, so that the leveling of the printing platform 31 is realized. In the printing process, the reaction force transmitted by the material is detected by the pressure sensor 45, whether the nozzle 41 is too close to the printing platform 31 or the accumulated material is judged, and the controller controls the motors to work through the received signals, so that the nozzle 41 has a proper distance from the printing platform 31 or the accumulated material, and the printing quality is ensured.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A3D printing device, comprising: the device comprises a horizontal support (10), a vertical support (20), a horizontal sliding device (30) and a vertical sliding device (40) which are connected with each other in a sliding mode, and a controller, wherein the horizontal sliding device (30) and the vertical sliding device are connected with the horizontal support (10) and the vertical support (20) in a sliding mode respectively;

the horizontal sliding device (30) comprises a printing platform (31), a sliding platform (32) and a fine adjustment motor (33); the printing platform (31) and the sliding platform (32) are arranged at intervals, a plurality of support rods (34) are arranged on the bottom wall of the printing platform (31), and the support rods (34) penetrate through the sliding platform (32); the sliding platform (32) is connected with the horizontal support (10) in a sliding manner; a motor shaft of the fine adjustment motor (33) is provided with a sleeve (35), and the sleeve (35) is in threaded connection with the supporting rod (34);

the vertical sliding device (40) comprises a nozzle (41), a distance sensor (50) is arranged on the nozzle (41), and probes of the nozzle (41) and the distance sensor (50) are respectively arranged opposite to the printing platform (31);

the fine adjustment motor (33) and the distance sensor (50) are respectively in communication connection with the controller.

2. 3D printing device according to claim 1, characterized in that a spring (36) is sleeved on the support bar (34), and two ends of the spring (36) are respectively in contact with the printing platform (31) and the sliding platform (32).

3. 3D printing device according to claim 2, wherein the support bar (34) is connected with the printing platform (31) by a ball hinge.

4. 3D printing device according to claim 3, characterized in that the number of support bars (34) is 3 or 4, in a triangular arrangement or in a quadrangular arrangement.

5. The 3D printing device according to claim 1, wherein the vertical sliding device (40) further comprises a mounting plate (42) and a fixing block (43) arranged on the mounting plate (42); the mounting plate (42) is slidably connected with the vertical support (20) through a connecting rod (44) and the mounting plate (42) is slidably connected with the connecting rod (44); the top of the nozzle (41) is connected with the fixed block (43).

6. The 3D printing device according to claim 5, characterized in that a pressure sensor (45) is provided at the connection between the nozzle (41) and the fixed block (43); the pressure sensor (45) is in communication with the controller.

7. The 3D printing device according to claim 6, wherein the connecting rod (44) is provided with a vertical sliding sleeve (46); a screw rod (21) is arranged on the vertical support (20); the sliding sleeve (46) is sleeved on the screw rod (21) and the sliding sleeve (46) is in threaded connection with the screw rod (21).

8. The 3D printing device according to any of the claims 1 to 7, characterized in that the bottom surface of the sliding platform (32) is provided with a slider (37), and the horizontal support (10) is provided with a sliding bar (11) cooperating with the slider (37).