Descending type ceramic 3D printer

Patent metadata

Field	Value
Publication number	US-11097445-B2
Application number	US-201916285144-A
Country	US
Kind code	B2
Filing date	Feb 25, 2019
Priority date	Jun 12, 2018
Publication date	Aug 24, 2021
Grant date	Aug 24, 2021

Abstract

The present invention relates to a descending type ceramic 3D printer comprising a rack, the middle part of the rack is provided with a charging block sealed with the four sides thereof, the lower part of the charging block is connected with a lifting device for printing, the lifting device for printing is mounted on the lifting mounting block arranged at the lower part of the rack, the upper left side of the rack is provided with a scraping device cooperating with the material in the charging block, the upper right side thereof is provided with a mounting rack, the mounting rack is provided with a light spot emission device and a light transmission block that cooperate with each other, and the mounting rack is further provided with a discharging device; the present invention aims to provide a descending type ceramic 3D printer in which the light transmission block and the light spot emission device are arranged above the charging block so that the charging block are descended gradually to realize the printing of the product, and when printing and feeding of each part finishes, the scraping device will scratch it flat, greatly guarantying the flatness of each printing, and ensuring the performance of the joint portions, thereby improving the quality of the product.

First claim

What is claimed is:

1. A descending type ceramic 3D printer comprising:
a rack;
a charging block disposed within a central portion of said rack and sealed upon four sides thereof;
wherein a lifting mounting block is fixedly mounted upon a lower portion of said rack and has a lifting device for printing mounted thereon and which is also connected to an undersurface portion of said charging block;
a scraping device is operatively mounted upon an upper left side portion of said rack and is adapted to operatively cooperate with material disposed within said charging block while a mounting rack is fixedly connected to an upper right side portion of said rack and is provided with a light spot emission device and a light transmission block that cooperate with each other; and
a discharging device is mounted upon said mounting rack for discharging material toward said charging block.

2. The descending type ceramic 3D printer in accordance with the claim 1 , wherein:
a forming port is defined within a central portion of said charging block and comprises a forming mesh plate and a forming sealing block disposed beneath said forming mesh plate, wherein said forming mesh plate is provided with a plurality of discharging holes; and
an L-shaped forming sealing mounting block is fixedly mounted upon said charging block by a horizontal portion of said L-shaped forming sealing mounting block by at least one forming sealing mounting bolt while a vertical portion of said L-shaped forming sealing mounting block secures said forming sealing block in place upon said charging block.

3. The descending type ceramic 3D printer in accordance with the claim 2 , wherein:
an upper end portion of a lifting and locating rod for printing is fixedly connected to a central portion of said forming sealing block, while a lower end portion of said lifting and locating rod for printing is adapted to engage a lifting and locating block for printing;
wherein left and right sides of said lifting and locating block for printing are fixedly connected to a pair of lifting and locating cylinders for printing; and
said lifting and locating cylinders for printing are mounted upon said lifting mounting block.

4. The descending type ceramic 3D printer in accordance with the claim 3 , wherein:
a plurality of lifting limit cylinders for printing are interposed between said pair of lifting and locating cylinders for printing, upper end portions of each one of said plurality of lifting limit cylinders for printing are provided with a lifting limit block for printing, and said plurality of lifting limit blocks for printing, respectively disposed atop said plurality of lifting limit cylinders for printing, form a stair-step array wherein the height difference between successive ones of said plurality of lifting limit cylinders for printing is the same.

5. The descending type ceramic 3D printer in accordance with the claim 1 , wherein:
said scraping device comprises a scraping and lifting cylinder which is embedded within said rack and extends through said rack so as to be operatively connected to a scraping cylinder which has a scraping block mounted upon a forward end portion thereof for movement toward said charging block.

6. The descending type ceramic 3D printer in accordance with the claim 5 , wherein:
a remainder collecting box is embedded within said rack so as to be interposed between said scraping and lifting cylinder and said charging block;
a cleaning tank is defined within a side wall portion of said remainder collecting box; and
a cleaning spring is operatively disposed within said cleaning tank and is provided for biasing a cleaning cone block into engagement with a lower surface portion of said scraping block.

7. The descending type ceramic 3D printer in accordance with the claim 6 , wherein:
a collecting box outlet is defined within said remainder collecting box so as to be in communication with said cleaning tank of said remainder collecting box and has a front to rear width dimension which is less than the front to width dimension of said cleaning tank of said remainder collecting box; and
a lower end portion of said cleaning spring of said cleaning tank is disposed upon a mounting block disposed within a lower end portion of said cleaning tank.

8. The descending type ceramic 3D printer in accordance with the claim 1 , wherein:
said light transmission block comprises a light transmission adjusting cylinder;
wherein said light transmission adjusting cylinder is operatively connected to a light transmission adjusting block;
a first light shading block is operatively connected to an upper left side portion of said light transmission adjusting block; and
a second light shading block is operatively connected to a lower right side portion of said light transmission adjusting block.

9. The descending type ceramic 3D printer in accordance with the claim 1 , wherein:
said discharging device comprises a discharge barrel fixedly connected to a lower surface portion of said mounting rack;
a lower end portion of said discharging barrel is provided with a discharging port;
a discharging tube is disposed in fluidic communication with said discharging port;
a feeding tube is fluidically connected to an upper side wall portion of said discharging barrel;
an opening and closing rotary discharging block is disposed within a bottom portion of said discharging barrel for discharging material out from said discharging barrel through said first discharging port, said opening and closing rotary discharging block has an opening and closing discharging port defined therein for fluidically cooperating with said discharging port defined within said discharging barrel;
a vertically oriented opening and closing rotary discharging shaft is connected to said opening and closing rotary discharging block and passes through an upper portion of said discharging barrel;
said vertically oriented opening and closing rotary discharging shaft, disposed within said discharging barrel is provided with a plurality of agitating members fixedly mounted thereon; and
a rotary drive motor is mounted atop said mounting rack and is operatively connected to said vertically oriented opening and closing rotary discharging shaft for rotating said vertically oriented opening and closing rotary discharging shaft, said plurality of agitating members disposed thereon, and said opening and closing rotary discharging block.

Assignees

• Univ Dongguan Technology

Inventors

• Deng Jun
• Tian Jun

Classifications

• B28C5/1223

  discontinuously operating mixing devices, e.g. with consecutive containers · CPC title

• C04B2235/6026

  Computer aided shaping, e.g. rapid prototyping · CPC title

• B28B1/001 Primary

  Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material (selective deposition modelling of metallic powder B22F10/00; rapid manufacturing of 3D objects in general and in particular of plastics B29C64/00) · CPC title

• B29C64/124

  using layers of liquid which are selectively solidified · CPC title

• B33Y40/10

  Pre-treatment · CPC title