CN111231316A

CN111231316A - Runner structure of vibration material disk equipment

Info

Publication number: CN111231316A
Application number: CN202010150525.9A
Authority: CN
Inventors: 戴成杰; 韩炜; 王磊
Original assignee: Aistar Intelligent Manufacturing Jiangsu Co Ltd
Current assignee: Aistar Intelligent Manufacturing Jiangsu Co Ltd
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2020-06-05

Abstract

The invention discloses a flow channel structure of additive equipment, wherein a piezoelectric ceramic piece is arranged on one side of a flow channel plate, a jet orifice plate is arranged at the bottoms of the piezoelectric ceramic piece and the flow channel plate, a trapezoidal wave input end is arranged above the piezoelectric ceramic piece, an electrode pattern layer is arranged at the bottom of the piezoelectric ceramic piece, an 80 picoliter flow channel, a 30 picoliter flow channel and a 10 picoliter flow channel are arranged on the outer side wall of the flow channel plate, and a plurality of first material output ports, a plurality of second material output ports and a plurality of third material output ports are uniformly distributed above the jet orifice plate from front to back. The flow channel structures with different sizes are integrated on one spray head, so that various materials can be used, ink drops with various ink volumes can be output, the corresponding flow channel unit number can be designed according to the corresponding number of the materials, the number of the spray holes and the resolution of the spray holes can be set according to requirements, and the method can be realized within the maximum range and the highest precision capable of being processed.

Description

Runner structure of vibration material disk equipment

Technical Field

The invention relates to a flow channel structure of additive equipment, in particular to the technical field of 3D printing.

Background

There are 3 technologies mainly used in the existing 3D forming apparatus, which are respectively: ink-jet technology, deposition molding technology and laser sintering technology. Both of the latter techniques generate heat during the molding process, and therefore have limitations on the materials used (e.g., biomaterials, heat sensitive materials). In the molding size, the laser sintering technique cannot be widely applied to large-size molds. The efficiency of the inkjet technique is highest in terms of molding efficiency. The advantages of inkjet technology in terms of the dimensions of the shapes are also evident. The ink jet technology is more suitable for industrial production.

In the additive manufacturing process, materials are critical, and the mixing of multiple materials can generate special materials suitable for special scenes, so that an execution unit supporting multiple materials is critical for manufacturing additive equipment, so that a composite process of multiple materials can be realized, and more novel materials and new processes are created. The ink jet unit is an execution unit for mixing materials, and according to different stacking densities of various materials, equipment can be assembled together by selecting spray heads with different ink amounts or a scheme of using a plurality of printing beams to meet the process requirements of the materials.

Disclosure of Invention

The present invention is directed to a flow channel structure of an additive manufacturing apparatus, so as to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a flow channel structure of material increase equipment is composed of a piezoelectric ceramic piece, a flow channel plate and a spray orifice plate, wherein the piezoelectric ceramic piece is installed on one side of the flow channel plate, the spray orifice plate is installed at the bottoms of the piezoelectric ceramic piece and the flow channel plate, a trapezoidal wave input end is arranged above the piezoelectric ceramic piece, an electrode pattern layer is arranged at the bottom of the piezoelectric ceramic piece, the flow channel plate comprises an 80 picoliter flow channel, a 30 picoliter flow channel, a 10 picoliter flow channel, a first material input port, a second material input port and a third material input port are arranged at the top of the flow channel plate, the 80 picoliter flow channel, the 30 picoliter flow channel and the 10 picoliter flow channel are arranged on the outer, the spray orifice plate is provided with a plurality of first material output ports, a plurality of second material output ports and a plurality of third material output ports in an evenly distributed manner from front to back.

Preferably, the 80 picoliter flow channel, the 30 picoliter flow channel and the 10 picoliter flow channel are pressure areas, and the top of the 80 picoliter flow channel, the 30 picoliter flow channel and the 10 picoliter flow channel is a buffer area.

The working principle of the flow channel structure of the material increase equipment is as follows: when the piezoelectric ceramic plate works, the trapezoidal waves are sent to the piezoelectric ceramic plate, mechanical deformation is generated on the electrode pattern layer part of the piezoelectric ceramic plate, negative pressure is generated to suck liquid into a buffer area from the outside, positive pressure is generated to extrude ink from a first material output port, a second material output port and a third material output port of the orifice plate through the pressure area, and ink drops are formed.

Compared with the prior art, the invention has the beneficial effects that: the flow channel structures with different sizes are integrated on one spray head, so that various materials can be used, ink drops with various ink volumes can be output, the corresponding flow channel unit number can be designed according to the corresponding number of the materials, the number of the spray holes and the resolution of the spray holes can be set according to requirements, and the method can be realized within the maximum range and the highest precision capable of being processed.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic structural diagram of a ceramic wafer according to the present invention;

FIG. 3 is a schematic structural view of a flow field plate;

FIG. 4 is a schematic structural view of an orifice plate;

FIG. 5 is a schematic diagram of a trapezoidal wave in the embodiment.

Reference numerals: the device comprises a piezoelectric ceramic piece 1, a flow channel plate 2, a jet orifice plate 3, a trapezoidal wave input end 1-1, an electrode pattern layer 1-2, an 80 picoliter flow channel 2-1, a 30 picoliter flow channel 2-2, a 10 picoliter flow channel 2-3, a first material input port 2-4, a second material input port 2-5, a third material input port 2-6, a first material output port 3-1, a second material output port 3-2 and a third material output port 3-3.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a flow channel structure of material increase equipment is composed of a piezoelectric ceramic piece 1, a flow channel plate 2 and a jet orifice plate 3, wherein one side of the flow channel plate 2 is provided with the piezoelectric ceramic piece 1, the bottom parts of the piezoelectric ceramic piece 1 and the flow channel plate 2 are provided with the jet orifice plate 3, a trapezoidal wave input end 1-1 is arranged above the piezoelectric ceramic piece 1, the bottom part of the piezoelectric ceramic piece 1 is provided with an electrode pattern layer 1-2, the flow channel plate 2 comprises an 80 picoliter flow channel 2-1, a 30 picoliter flow channel 2-2, a 10 picoliter flow channel 2-3, a first material input port 2-4, a second material input port 2-5 and a third material input port 2-6, the top part of the flow channel plate 2 is provided with a first material input port 2-4, a second material input port 2-5 and a third material input port 2-6, and the outer side wall of the flow channel plate 2 is provided with the 80, 30 picoliter flow channels 2-2 and 10 picoliter flow channels 2-3, and a plurality of first material output ports 3-1, a plurality of second material output ports 3-2 and a plurality of third material output ports 3-3 are uniformly distributed from front to back above the orifice plate 3.

Preferably, the 80 picoliter flow channel 2-1, the 30 picoliter flow channel 2-2 and the 10 picoliter flow channel 2-3 are pressure areas a, and the top of the 80 picoliter flow channel 2-1, the 30 picoliter flow channel 2-2 and the 10 picoliter flow channel 2-3 are buffer areas b.

Example (b): the flow channel structure of the additive equipment works by sending trapezoidal waves to the piezoelectric ceramic plate 1 during working, wherein a trapezoidal wave diagram is shown in fig. 5, mechanical deformation occurs on the electrode pattern layer 1-2 part of the piezoelectric ceramic plate 1, negative pressure is generated to suck liquid into a buffer area b from the outside during a rising edge t1 time period and a maintaining time t2 time period, positive pressure is generated to enable ink to pass through a pressure area a during a falling edge t3 time period, and finally ink drops are extruded from a first material output port 3-1, a second material output port 3-2 and a third material output port 3-3 of the orifice plate 3.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a runner structure of vibration material disk equipment which characterized in that: the flow channel structure comprises a piezoelectric ceramic piece (1), a flow channel plate (2) and a spray hole plate (3), wherein the piezoelectric ceramic piece (1) is installed on one side of the flow channel plate (2), the spray hole plate (3) is installed at the bottoms of the piezoelectric ceramic piece (1) and the flow channel plate (2), a trapezoidal wave input end (1-1) is arranged above the piezoelectric ceramic piece (1), an electrode pattern layer (1-2) is arranged at the bottom of the piezoelectric ceramic piece (1), the flow channel plate (2) comprises an 80 picoliter flow channel (2-1), a 30 picoliter flow channel (2-2), a 10 picoliter flow channel (2-3), a first material input port (2-4), a second material input port (2-5) and a third material input port (2-6), the first material input port (2-4), the second material input port (2-5) and the third material input port (2-6) are arranged at the top of the flow channel plate (2), the outer side wall of the runner plate (2) is provided with an 80 picoliter runner (2-1), a 30 picoliter runner (2-2) and a 10 picoliter runner (2-3), and a plurality of first material output ports (3-1), a plurality of second material output ports (3-2) and a plurality of third material output ports (3-3) are uniformly distributed above the spray hole plate (3) from front to back.

2. The flow channel structure of an additive device according to claim 1, wherein: the 80 picoliter flow channel (2-1), the 30 picoliter flow channel (2-2) and the 10 picoliter flow channel (2-3) are pressure areas (a), and the top of the 80 picoliter flow channel (2-1), the 30 picoliter flow channel (2-2) and the 10 picoliter flow channel (2-3) is a buffer area (b).

3. The flow channel structure of an additive device according to claim 1, wherein: the working principle of the flow passage structure is as follows: when the piezoelectric ceramic plate works, the trapezoidal waves are sent to the piezoelectric ceramic plate (1), the electrode pattern layer (1-2) of the piezoelectric ceramic plate (1) is subjected to mechanical deformation, negative pressure is generated to suck liquid into a buffer area (b) from the outside, positive pressure is generated to extrude ink from a first material output port (3-1), a second material output port (3-2) and a third material output port (3-3) of the orifice plate (3) through a pressure area (a) to form ink drops.