CN217617745U

CN217617745U - 3D prints thick liquids feedway

Info

Publication number: CN217617745U
Application number: CN202220225081.5U
Authority: CN
Inventors: 夏国峰; 郝向阳; 张仕颖
Original assignee: Chongqing Three Gorges University
Current assignee: Chongqing Three Gorges University
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-10-21
Anticipated expiration: 2032-01-27

Abstract

A3D printing slurry feeding device belongs to the field of 3D printing. The utility model provides a 3D prints thick liquids feedway pay-off driving motor (1) and links to each other through bolt and reduction gear (2), and reduction gear (2) are connected with driving motor backup pad (5) through hexagonal copper post (4) and bolt, lead screw (8) are connected with reduction gear (2) output shaft through shaft coupling (3), stripper plate (11) are connected with lead screw (8) and optical axis (6) through flange nut (10) and linear bearing (9), piston (12) are placed in storage cylinder (14), drive stripper plate (11) downstream under the drive of pay-off driving motor (1) and make piston (12) extrude the thick liquids in storage cylinder (14) from adapter (15). The utility model provides a commonality is strong, the extrusion capacity can accurate control, simple structure, convenient operation, the piston feedway that the processing cost is low.

Description

3D printing paste feeding device

Technical Field

The utility model belongs to the technical field of the 3D printing technique and specifically relates to thick liquids formula 3D printing device.

Background

3D printing technology, also known as additive manufacturing technology, is a new manufacturing technology developed in the late 80 s of the 20 th century. The technology is based on a digital model, and realizes the printing of a three-dimensional entity through layer-by-layer accumulation. At present, selective laser sintering forming is mainly adopted for ceramic and metal 3D printing, although forming speed is high, precision is high, equipment maintenance cost is high, energy consumption is high, and requirements for materials are high, so that the selective laser sintering forming method cannot be popularized and used on a large scale. In order to realize the low-cost 3D printing of the ceramic and the metal, the ceramic and the metal powder are respectively made into a slurry form, a slurry 3D printer is adopted to print the ceramic and the metal powder, and finally, a three-dimensional entity is obtained through degreasing and sintering. The feeding system of thick liquids 3D printer adopts the pneumatic type more, has the feed volume and can not accurate control, poor stability and operation complicacy scheduling problem. Therefore, the feeding device which has the advantages of simple structure, strong stability, accurate control of extrusion amount and low processing cost is provided.

Disclosure of Invention

The utility model discloses a solve the technical problem who exists among the well-known technology and provide a simple structure, stability is strong, the extrusion capacity can accurate control and the feedway of processing low-cost thick liquids formula 3D printer. The utility model adopts the technical proposal that: the utility model provides a 3D prints thick liquids feedway includes pay-off driving motor, reduction gear, shaft coupling, optical axis, linear bearing, lead screw, flange nut, stripper plate, extrudees piston, extrusion device support, feed cylinder support, storage cylinder, adapter.

The utility model provides an among the technical scheme, extrusion device support and feed cylinder support are detachable design, can change feed cylinder support size, use the storage section of thick bamboo of different specifications.

Preferably, the storage cylinder adopts a needle cylinder of a glue dispenser, and the discharge end adopts a pneumatic quick plug connector to be connected with a feeding pipe.

Preferably, the feeding driving motor is a hybrid stepping motor, is connected with the speed reducer and provides extrusion power with large torque force.

The utility model has the advantages of as follows:

(1) The feeding driving motor adopts a hybrid stepping motor and is connected with the speed reducer, so that the torsion of the driving motor is increased. In addition, the speed reducers with different reduction ratios can be replaced according to the torque requirements;

(2) The extrusion device bracket and the charging barrel bracket are designed detachably, the size of the charging barrel bracket can be changed, and storage barrels with different specifications are used;

(3) The piston extrudes the slurry in the storage barrel under the action of the feeding driving motor, the extrusion amount is calculated according to the lead of the lead screw, the rotating speed of the feeding driving motor and the diameter of the charging barrel, and the rotating speed of the feeding driving motor is set according to calculation to obtain accurate feeding amount;

(4) The feeding device is simple in structure, strong in stability, capable of accurately controlling extrusion amount and low in processing cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. the device comprises a feeding driving motor, 2, a speed reducer, 3, a coupler, 4, a hexagonal copper column, 5, a driving motor supporting plate, 6, an optical axis, 7, an extrusion device support, 8, a lead screw, 9, a linear bearing, 10, a flange nut, 11, an extrusion plate, 12, a piston, 13, a charging barrel support, 14, a storage barrel, 15 and an adapter.

Detailed Description

The following description is made for the design scheme of the embodiment of the present invention clearly and completely by referring to the drawings of the present invention as follows:

as shown in fig. 1, the feeding driving motor (1) is connected with the reducer (2) through a bolt, and the feeding driving motor acts to provide larger torque force. The speed reducer (2) is connected with the driving motor supporting plate (5) through a hexagonal copper column (4) and a bolt, and the speed reducer is used for connecting and supporting the driving stepping motor. The lead screw (8) is connected with an output shaft of the speed reducer (2) through the coupler (3) and is used for driving the lead screw and the driving stepping motor to synchronously rotate. The extrusion plate (11) is connected with the screw rod (8) and the optical axis (6) through a flange nut (10) and a linear bearing (9). The piston (12) is placed in the storage barrel (14), and the extrusion plate (11) is driven by the feeding driving motor (1) to move downwards, so that the piston (12) extrudes the slurry in the storage barrel (14) from the adapter (15).

And determining the transmission ratio of a reducer of the driving motor and the rotating speed of the driving motor according to the fluidity and the forming speed of the slurry. The flange nut is installed on the extrusion plate, and the driving motor drives the lead screw to rotate, so that the extrusion plate moves downwards, the piston is pushed, and the slurry in the storage cylinder is extruded from the adapter under the action of piston extrusion. The adapter adopts a pneumatic quick connector to be connected with the feeding pipe, and the slurry enters the extruding device of the slurry type 3D printer along the pipeline. When the slurry in the storage barrel is completely extruded, the pneumatic quick switching joint at the discharge end is disconnected, and a new storage barrel is replaced, so that continuous extrusion is realized. The feeding speed of the feeding device can accurately calculate the rotating speed of the driving motor according to the lead screw lead, the diameter of the charging barrel and the extrusion speed, so that the feeding amount can be accurately controlled.

Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention.

Claims

1. A3D printing slurry feeding device is characterized by comprising a feeding driving motor (1), a speed reducer (2), a coupler (3), a hexagonal copper column (4), a driving motor supporting plate (5), an optical shaft (6), an extrusion device support (7), a lead screw (8), a linear bearing (9), a flange nut (10), an extrusion plate (11), a piston (12), a material cylinder support (13), a material storage cylinder (14) and an adapter (15); the feeding driving motor (1) is connected with the speed reducer (2) through a bolt; the speed reducer (2) is connected with a driving motor supporting plate (5) through a hexagonal copper column (4) and a bolt; the lead screw (8) is connected with an output shaft of the speed reducer (2) through a coupling (3); the extrusion plate (11) is connected with the screw rod (8) and the optical axis (6) through a flange nut (10) and a linear bearing (9); the piston (12) is placed in the storage barrel (14), and the extrusion plate (11) is driven by the feeding driving motor (1) to move downwards, so that the piston (12) extrudes the slurry in the storage barrel (14) from the adapter (15).

2. A 3D printing paste supply device according to claim 1, characterised in that the feed drive motor (1) is a hybrid stepper motor.

3. 3D printing paste supply device according to claim 1, characterized in that the speed reducer (2) is a stepper motor speed reducer.

4. A 3D printing paste supply device according to claim 1, wherein the squeeze plate (11) uses two optical axes (6) to fix its position for up and down movement.

5. The 3D printing paste supply device according to claim 1, wherein the storage cylinder (14) is a dispenser cylinder.

6. A 3D printing paste supply device according to claim 1, characterised in that the adapter (15) is a pneumatic quick-connect adapter.