CN211798992U

CN211798992U - Defoaming device for producing conductive silver paste

Info

Publication number: CN211798992U
Application number: CN201922338884.2U
Authority: CN
Inventors: 潘中海; 刘彩风
Original assignee: Tianjin Baoxingwei Technology Co Ltd
Current assignee: Tianjin Baoxingwei Technology Co Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-10-30
Anticipated expiration: 2029-12-24

Abstract

The utility model relates to a defoaming device for production conductive silver thick liquid, including the defoaming box, the defoaming box is fixed subaerial through a plurality of landing legs, is equipped with negative pressure defoaming device and penetrating defoaming device on the defoaming box, and penetrating defoaming dish includes inner circle and outer lane, and inner circle and outer lane set up with one heart, and are equipped with the filter screen between inner circle and the outer lane, the inner wall and the screw fixed connection of inner circle, and the outer wall of outer lane is equipped with spacing spout. The utility model discloses a negative pressure fire fighting equipment and penetrating type fire fighting equipment carry out the defoaming to conductive silver thick liquid simultaneously, and the defoaming is efficient, new bubble can not appear in the defoaming.

Description

Defoaming device for producing conductive silver paste

Technical Field

The utility model relates to a touch-sensitive screen technical field especially relates to a defoaming device for production conductive silver thick liquid.

Background

With the discovery and application of semiconductor materials, touch screen technology has also been widely used in different electronic products such as computers, televisions, mobile phones, digital cameras, and the like. Conductive silver paste is one of the key materials for manufacturing touch screens. At present, the conductive silver paste applied to the resistance-type and capacitance-type touch screens generally adopts metal silver powder as a main raw material, in order to ensure the conductivity of the conductive silver paste of a screen printing circuit, the silver content of the foreign conductive silver paste is mostly over 75 percent, and the conductive silver paste can generate bubbles in the preparation process, so that the bubbles are generated in the local part of a printed circuit printed on the touch screen by the conductive silver paste, and the sensitivity and the conductivity of the touch screen are also influenced. In addition, current electrically conductive silver thick liquid fire fighting equipment carries out the defoaming through the blade rotation that has the felting needle, produces new bubble easily when the defoaming, and work efficiency is low.

Disclosure of Invention

The utility model aims at solving the defects of the prior art and provides a defoaming device for producing conductive silver paste.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: a defoaming device for producing conductive silver paste comprises a defoaming box body, wherein the defoaming box body is fixed on the ground through a plurality of supporting legs, a negative pressure defoaming device and a penetrating defoaming device are arranged on the defoaming box body, the penetrating defoaming device comprises a vertical motor, a rotating shaft and a penetrating defoaming disc, the motor is arranged at the central position of the top of the defoaming box body, an output shaft of the motor penetrates through the top wall of the defoaming box body and then is fixedly connected with the rotating shaft, the other end of the rotating shaft is connected with a vertical lead screw, the lower end of the lead screw is rotationally connected with the bottom wall of the defoaming box body, a screw nut is matched on the lead screw, the penetrating defoaming disc comprises an inner ring and an outer ring, the inner ring and the outer ring are concentrically arranged, a filter screen is arranged between the inner ring and the outer ring, the inner wall of the inner ring is fixedly connected, filter screen top surface and bottom surface all are equipped with a plurality of felting needles, negative pressure fire fighting equipment includes negative pressure pump and manometer, the induction port and the defoaming box roof intercommunication of negative pressure pump, the manometer is used for measuring the internal pressure of defoaming box, defoaming box top surface is equipped with the pan feeding mouth, pan feeding mouth upper end is equipped with the end cover, defoaming box bottom surface is equipped with the discharge gate, all be equipped with the ooff valve on pan feeding mouth and the discharge gate, defoaming box diapire discharge gate department is equipped with the throttle plate, discharge gate port and the laminating of throttle plate bottom surface, throttle plate bottom surface one side rigid coupling has the pivot, No. two vertical motors are installed to defoaming box bottom surface, the.

The output shaft of the first motor is hermetically connected with the top wall of the defoaming box body through a shaft seal.

The filter screen is a stainless steel filter screen.

The length of the rotating shaft is one third of the length of the screw rod.

The utility model has the advantages that: the utility model discloses a negative pressure fire fighting equipment and penetrating type fire fighting equipment carry out the defoaming to conductive silver thick liquid simultaneously, and the defoaming is efficient, new bubble can not appear in the defoaming.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a penetration defoaming plate;

FIG. 3 is an enlarged view of A in FIG. 1;

in the figure: 1-defoaming box body; 2-a negative pressure defoaming device; 3-a penetrating defoaming device; 4-motor number one; 5-a rotating shaft; 6-a lead screw; 7-a penetrating defoaming plate; 8-inner ring; 9-outer ring; 10-filtering the screen; 11-a slide; 12-a needle; 13-a negative pressure pump; 14-pressure gauge; 15-a feeding port; 16-an end cap; 17-a discharge hole; 18-a throttle plate; 19-a rotating shaft; 20-motor number two;

the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in fig. 1 to 3, a defoaming device for producing conductive silver paste, comprising a defoaming box body 1, wherein the defoaming box body 1 is fixed on the ground through a plurality of support legs, the defoaming box body 1 is provided with a negative pressure defoaming device 2 and a penetration defoaming device 3, the penetration defoaming device 3 comprises a vertical motor 4, a rotating shaft 5 and a penetration defoaming disc 7, the motor 4 is arranged at the center of the top of the defoaming box body 1, the output shaft of the motor 4 penetrates through the top wall of the defoaming box body 1 and then is fixedly connected with the rotating shaft 5, the other end of the rotating shaft 5 is connected with a vertical screw rod 6, the lower end of the screw rod 6 is rotatably connected with the bottom wall of the defoaming box body 1, the screw rod 6 is matched with a nut, the penetration defoaming disc 7 comprises an inner ring 8 and an outer ring 9, the inner ring 8 and the outer ring 9 are concentrically arranged, a filter screen 10 is arranged between the inner, the outer wall of outer lane 9 is equipped with spacing spout, be equipped with on the inner wall of defoaming box 1 with spacing spout assorted slide 11, filter screen 10 top surface and bottom surface all are equipped with a plurality of felting needles 12, negative pressure fire fighting equipment 2 includes negative pressure pump 13 and manometer 14, the induction port of

negative pressure pump

13 and 1 roof intercommunication of defoaming box, manometer 14 is used for measuring the pressure in the defoaming box 1, defoaming box 1 top surface is equipped with pan feeding mouth 15, pan feeding mouth 15 upper end is equipped with end cover 16, defoaming box 1 bottom surface is equipped with discharge gate 17, all be equipped with the ooff valve on pan feeding mouth 15 and the

discharge gate

17, 1 diapire discharge gate 17 department of defoaming box is equipped with throttle plate 18, discharge gate 17 port and 18 bottom surface laminating of throttle plate, 18 bottom surface one side rigid coupling has pivot 19, No. two vertical motors 20 are installed to defoaming box 1 bottom surface, No. two motors 20.

The output shaft of the first motor 4 is hermetically connected with the top wall of the defoaming box body 1 through a shaft seal.

The filter screen 10 is a stainless steel filter screen.

The length of the rotating shaft 5 is one third of the length of the screw 6.

The utility model discloses the during operation, treat that the electrically conductive silver thick liquid of defoaming enters into defoaming box 1 through pan feeding mouth 15 in, the liquid level is greater than lead screw 6's length, thereby guarantee that penetrating defoaming dish 7 is located under the liquid level, motor 4 drives rotation axis 5 rotatory, lead screw 6 is rotatory, penetrating defoaming dish 7 is because slide 11 is spacing, penetrating defoaming dish 7 makes linear motion, filter screen 10 and felting needle 12 up-and-down motion, the puncture bubble, negative pressure pump 13 works simultaneously, produce the negative pressure in the defoaming box 1, help the blasting of bubble, thereby the efficiency of defoaming has been improved. In addition, after the defoaming is accomplished, No. two motor 20 drive the throttle plate 18 rotatory, and cutoff when helping the ejection of compact when cutting off, earlier with 18 rotatory discharge gates 17 of throttle plate on, when treating that the material in the discharge gates 17 has gone out completely, the closing valve prevents remaining conductive silver thick liquid in the discharge gates 17, the utility model discloses a negative pressure fire fighting equipment 2 and penetrating type fire fighting equipment 3 carry out the defoaming to conductive silver thick liquid simultaneously, and the defoaming is efficient, new bubble can not appear in the defoaming.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.

Claims

1. A defoaming device for producing conductive silver paste comprises a defoaming box body (1) and is characterized in that the defoaming box body (1) is fixed on the ground through a plurality of support legs, a negative pressure defoaming device (2) and a penetration defoaming device (3) are arranged on the defoaming box body (1), the penetration defoaming device (3) comprises a vertical motor (4), a rotating shaft (5) and a penetration defoaming disc (7), the motor (4) is arranged at the center of the top of the defoaming box body (1), an output shaft of the motor (4) penetrates through the top wall of the defoaming box body (1) and then is fixedly connected with the rotating shaft (5), the other end of the rotating shaft (5) is connected with a vertical lead screw (6), the lower end of the lead screw (6) is rotatably connected with the bottom wall of the defoaming box body (1), a screw nut is matched on the lead screw (6), the penetration defoaming disc (7) comprises an inner ring (8) and an outer ring (, the inner ring (8) and the outer ring (9) are concentrically arranged, a filter screen (10) is arranged between the inner ring (8) and the outer ring (9), the inner wall of the inner ring (8) is fixedly connected with a nut, the outer wall of the outer ring (9) is provided with a limiting chute, the inner wall of the defoaming box body (1) is provided with a slide way (11) matched with the limiting chute, the top surface and the bottom surface of the filter screen (10) are respectively provided with a plurality of puncture needles (12), the negative pressure defoaming device (2) comprises a negative pressure pump (13) and a pressure gauge (14), an air suction port of the negative pressure pump (13) is communicated with the top wall of the defoaming box body (1), the pressure gauge (14) is used for measuring the pressure in the defoaming box body (1), the top surface of the defoaming box body (1) is provided with a feeding port (15), the upper end cover (16) is arranged at the upper end of the feeding, the defoaming box body (1) is provided with a throttle plate (18) at a discharge port (17) on the bottom wall, the port of the discharge port (17) is attached to the bottom surface of the throttle plate (18), a rotating shaft (19) is fixedly connected to one side of the bottom surface of the throttle plate (18), a vertical second motor (20) is installed on the bottom surface of the defoaming box body (1), and the output shaft of the second motor (20) is fixedly connected with the rotating shaft (19).

2. The defoaming apparatus for producing conductive silver paste according to claim 1, wherein an output shaft of the first motor (4) is hermetically connected with the top wall of the defoaming box body (1) through a shaft seal.

3. The defoaming apparatus for producing conductive silver paste according to claim 1, wherein the filter screen (10) is a stainless steel filter screen.

4. The defoaming apparatus for producing conductive silver paste according to claim 1, wherein the length of the rotating shaft (5) is one third of the length of the lead screw (6).