CN-224207885-U - Conductive silver paste preparation device

CN224207885UCN 224207885 UCN224207885 UCN 224207885UCN-224207885-U

Abstract

The utility model relates to the technical field of conductive silver paste preparation, and particularly discloses a conductive silver paste preparation device which comprises a bottom plate, wherein a first fixing frame is arranged on the bottom plate, a stirring barrel is fixedly connected to the first fixing frame, a feeding hole and a discharging hole are respectively formed in the upper end and the lower end of the stirring barrel, a first plug and a second plug are respectively clamped at the feeding hole and the discharging hole, a second fixing frame is fixedly connected to the first fixing frame, a hydraulic rod with a telescopic end perpendicular to the axis of the stirring barrel is arranged on the second fixing frame, a high-speed shearing stirring mechanism for stirring conductive silver paste in the stirring barrel is arranged on the hydraulic rod, and a compression roller grinding mechanism for grinding the conductive silver paste is arranged on the high-speed shearing stirring mechanism, so that the technical problem that the dispersing capability of the conductive silver paste is insufficient due to the fact that the stirring mode on the conventional conductive silver paste preparation device is too single is solved.

Inventors

YIN WENGANG
WANG SHAOLI
WEI JIANLONG
WANG JIAJU

Assignees

中科纳通(重庆)电子材料有限公司

Dates

Publication Date: 20260508
Application Date: 20250520

Claims (5)

1. The conductive silver paste preparation device is characterized by comprising a bottom plate, wherein a first fixing frame is arranged on the bottom plate, a stirring barrel is fixedly connected to the first fixing frame, a feeding hole and a discharging hole are respectively formed in the upper end and the lower end of the stirring barrel, a first plug and a second plug are respectively clamped at the feeding hole and the discharging hole, a second fixing frame is fixedly connected to the first fixing frame, a hydraulic rod with a telescopic end perpendicular to the axis of the stirring barrel is arranged on the second fixing frame, a high-speed shearing stirring mechanism for stirring conductive silver paste in the stirring barrel is arranged on the hydraulic rod, and a compression roller grinding mechanism for grinding the conductive silver paste is arranged on the high-speed shearing stirring mechanism.
2. The device for preparing the conductive silver paste according to claim 1, wherein the high-speed shearing stirring mechanism comprises a cross rod, the cross rod is fixedly connected to the telescopic end of the hydraulic rod, two connecting devices are arranged on the cross rod and penetrate through the stirring barrel, a disc is arranged in the stirring barrel and has a radius smaller than the inner diameter of the stirring barrel, a first motor perpendicular to the axis of the stirring barrel is arranged on the stirring barrel, a first rotating rod is fixedly connected to a power output shaft of the first motor, one end of the first rotating rod, far away from the first motor, is fixedly connected with a high-speed dispersing disc, the high-speed dispersing disc is arranged in the stirring barrel, and a circular ring capable of being matched with the outer edge of the disc is arranged on the inner wall of the stirring barrel.
3. The device for preparing conductive silver paste according to claim 2, wherein the two connecting devices comprise cylinders, the cylinders are fixedly connected to the cross rod, connecting rods are arranged on the cylinders, one ends of the connecting rods are slidably arranged in the cylinders, the other ends of the connecting rods penetrate through the stirring barrel and are fixedly connected with the disc, springs are arranged between the connecting rods and the cylinders, and limiting rings are arranged in the cylinders.
4. The device for preparing conductive silver paste according to claim 3, wherein the disc is provided with a flow guiding device, the flow guiding device comprises two fixed columns, the two fixed columns are fixedly connected to the lower end face of the disc, and the fixed columns are provided with flow guiding discs.
5. The device for preparing conductive silver paste according to claim 4, wherein the press roller grinding mechanism comprises two sliding blocks, an annular sliding groove is formed in the stirring barrel, two sliding blocks are slidably arranged in the annular sliding groove, two grinding blocks are fixedly connected to the two sliding blocks respectively, a bidirectional hydraulic rod is fixedly connected between the two grinding blocks, a connecting column is arranged on the bidirectional hydraulic rod, a second motor is arranged at the lower end of the disc, a second rotating rod is fixedly connected to a power output shaft of the second motor, the second rotating rod is slidably arranged in a fit groove formed in the connecting rod, two ejector rods are respectively arranged on the two grinding blocks, and the two ejector rods can be matched with a plurality of bumps arranged on the lower end face of the disc.

Description

Conductive silver paste preparation device Technical Field The utility model relates to the technical field of conductive silver paste preparation, and particularly discloses a conductive silver paste preparation device. Background The conductive silver paste preparation device is equipment for producing the conductive silver paste, and the conductive silver paste mainly comprises silver powder, an organic solvent and an adhesive, has high conductivity and stability, is widely applied to the fields of electronic packaging, solar cells, flexible circuit boards and the like, and can optimize rheological property and solidification performance of the conductive silver paste by adjusting the proportion, particle size and additive types of the silver powder so as to meet the requirements of different application scenes. The utility model of patent number CN222530094U discloses a conductive silver paste preparation device, which comprises a stirring barrel, wherein the top of the stirring barrel is provided with a motor for supplying energy, the top of the stirring barrel is provided with a valve for controlling the proportion, the top of the valve is provided with a storage barrel for storing solvent, and the bottom of the stirring barrel is provided with a bracket for keeping stable. This electrically conductive silver thick liquid preparation facilities, cooperation through agitator and motor sets up, can make the device reduce the silver thick liquid and prepare the inside adhesion after, avoid influencing the quality that silver thick liquid was prepared once more, the setting of agitator can make the injection of silver thick liquid raw materials more convenient, simultaneously can be more swift take out the silver thick liquid that prepares, the setting of motor can stir silver thick liquid through rotatory for silver thick liquid can be faster misce bene, simultaneously can scrape the silver thick liquid of agitator inner wall and get, increase the work efficiency of device. Although the existing conductive silver paste preparation device reduces residues through a motor-driven scraping structure, the conventional stirring mode is lack of a precise grinding module, the preparation device only relies on low-speed stirring of the traditional paddles, and the generated shearing stress cannot break through the mechanical depolymerization threshold of the silver powder hard aggregate. Disclosure of utility model Accordingly, the present utility model is directed to a conductive silver paste preparation device, which solves the technical problem of insufficient dispersion capability of conductive silver paste caused by too single stirring mode in the conventional conductive silver paste preparation device. The utility model provides the technical scheme that the electric silver paste grinding device comprises a bottom plate, wherein a first fixing frame is arranged on the bottom plate, a stirring barrel is fixedly connected to the first fixing frame, a feeding hole and a discharging hole are respectively formed in the upper end and the lower end of the stirring barrel, a first plug and a second plug are respectively clamped at the feeding hole and the discharging hole, a second fixing frame is fixedly connected to the first fixing frame, a hydraulic rod with a telescopic end perpendicular to the axis of the stirring barrel is arranged on the second fixing frame, a high-speed shearing and stirring mechanism for stirring electric silver paste in the stirring barrel is arranged on the hydraulic rod, and a compression roller grinding mechanism for grinding the electric silver paste is arranged on the high-speed shearing and stirring mechanism. Through the synergistic effect of the high-speed shearing stirring mechanism and the compression roller grinding mechanism, the conductive silver paste can be fully ground in the stirring process, and the grinding efficiency and quality are improved. Further, the high-speed shearing stirring mechanism comprises a cross rod, the cross rod is fixedly connected to the telescopic end of the hydraulic rod, two connecting devices are arranged on the cross rod and penetrate through the stirring barrel, the two connecting devices are located in the stirring barrel and are provided with discs, the radius of each disc is smaller than the inner diameter of the stirring barrel, a first motor perpendicular to the axis of the stirring barrel is arranged on the stirring barrel, a first rotating rod is fixedly connected to a power output shaft of the first motor, one end of the first rotating rod, which is far away from the first motor, is fixedly connected with a high-speed dispersing disc, the high-speed dispersing disc is located in the stirring barrel, and a circular ring capable of being matched with the outer edge of the disc is arranged on the inner wall of the stirring barrel. The high-speed shearing stirring mechanism is used for rapidly preliminarily dispersing and grinding silver