CN110935200A - Stirring fire fighting equipment of electrically conductive silver thick liquid - Google Patents
Stirring fire fighting equipment of electrically conductive silver thick liquid Download PDFInfo
- Publication number
- CN110935200A CN110935200A CN201911259126.XA CN201911259126A CN110935200A CN 110935200 A CN110935200 A CN 110935200A CN 201911259126 A CN201911259126 A CN 201911259126A CN 110935200 A CN110935200 A CN 110935200A
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- stirring
- conductive silver
- shaft
- sealing cover
- gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0042—Degasification of liquids modifying the liquid flow
- B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
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- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
Abstract
The invention discloses a stirring defoaming device for conductive silver paste, which comprises a mixing barrel, a stirring device and a sealing cover, wherein the sealing cover is connected with the mixing barrel, the sealing cover is connected with a vacuum pump, an air suction port of the vacuum pump is connected with an air outlet on the sealing cover through a connecting pipe, the sealing cover is provided with a motor, an output shaft of the motor is connected with the stirring device, and the stirring device extends into the mixing barrel. The blending tank is used for holding metal silver particle, base resin, solvent and auxiliary agent etc. and carries out mixing stirring through agitating unit, and sealed lid and vacuum pump can be taken out the air in the blending tank, cause the vacuum environment, and the gas in the silver thick liquid of sneaking into when making the mixture breaks the discharge because of atmospheric pressure change to reduce the bubble of sneaking into in the silver thick liquid, guarantee the quality of silver thick liquid; and through the transmission between first size and the second gear, drive the second stirring rod and stir the thick liquid together, increased stirring efficiency.
Description
Technical Field
The invention relates to the technical field of auxiliary equipment for preparing conductive silver paste, in particular to a stirring defoaming device for conductive silver paste.
Background
Electrically conductive silver thick liquid wide application in electronics industry fields such as computer, cell-phone keyboard, membrane switch, touch-sensitive screen, smart card, radio frequency identification, several electrically conductive silver thick liquids that present use volume is the biggest include: low-temperature silver paste for film switches and flexible circuit boards using PET as a base material, low-temperature conductive silver paste for touch screens, paste for single-plate ceramic capacitors, silver paste for piezoresistors and thermistors, silver paste for piezoelectric ceramics and silver electrode paste for carbon film potentiometers. The printed conductive silver paste is a low-temperature baking type conductive silver paste specially designed for loop wires of resistive and capacitive touch screens, is prepared by finely grinding high-performance resin and silver powder with excellent conductivity, and is suitable for ITO film glass.
In the capacitive touch screen industry, domestic capacitive touch screen production meets more than 90% of worldwide demand, wherein the majority of internal current leading-out channels are realized by adopting printed silver paste, and conductive silver paste is an indispensable basic and key functional material for producing various electronic component products.
The conductive silver paste is a composite conductive high-molecular polymer material, and is a mechanical mixture paste consisting of metal silver particles, base resin, solvent and auxiliary agent. The conductive silver paste must be uniformly mixed during preparation, air may be mixed into the conductive silver paste during stirring and mixing to form bubbles, the bubbles seriously affect the quality of products made of the conductive silver paste, and defective products or waste products are generated.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a stirring is efficient, can reduce the stirring fire fighting equipment of electrically conductive silver thick liquid of bubble content in the silver thick liquid moreover.
The technical scheme adopted by the invention is as follows: the utility model provides a stirring fire fighting equipment of electrically conductive silver thick liquid, it includes mixing drum, agitating unit, sealed lid with the mixing drum is connected through threaded connection or buckle connection or bolted connection's mode, sealed covering is connected with the vacuum pump, the induction port of vacuum pump through the connecting pipe with sealed gas outlet of covering is connected, sealed covering is equipped with the motor, the output shaft of motor has agitating unit, agitating unit extends to in the mixing drum.
After adopting the structure, compared with the prior art, the stirring defoaming device for the conductive silver paste has the following advantages: the blending tank is used for holding metal silver particle, base resin, solvent and auxiliary agent etc. mixes the stirring through agitating unit, and sealed lid can be taken out the air in the blending tank with the cooperation of vacuum pump, causes negative pressure or vacuum environment, and the gas that sneaks into in the silver thick liquid when making the mixture breaks the discharge because of atmospheric pressure changes to the bubble of sneaking into in the reduction silver thick liquid guarantees the quality of silver thick liquid.
Preferably, the stirring device comprises a first stirring shaft, a plurality of first stirring blades are arranged on the first stirring shaft, and the first stirring shaft is driven by a motor. The first stirring rod driven by a motor can stir the slurry in the mixing bag through the first stirring blade, so that the slurry is uniformly mixed together.
Preferably, the stirring device further comprises a first gear, a second gear and a second stirring shaft, the first gear is arranged on the first stirring shaft and is meshed with the second gear, the second stirring shaft is connected with the second gear, and a second stirring blade is arranged on the second stirring shaft. Through first gear and second gear meshing, transmit the rotation of first (mixing) shaft for the second (mixing) shaft, make the second (mixing) shaft can take place the rotation, together stir the thick liquid with first (mixing) shaft, can make stirring efficiency effectually obtain promoting.
Preferably, the second stirring blades are staggered with the first stirring blades. The first stirring blade and the second stirring blade which are arranged in a staggered mode can prevent the first stirring blade and the second stirring blade from interfering with each other in work, and loss caused by collision is avoided.
Preferably, the number of the second gear and the second stirring shaft is at least two, and the second gear and the second stirring shaft are circumferentially arranged in an array by taking the first stirring shaft as a central shaft. The at least two second gears and the second stirring shaft can be arranged in a circumferential array by taking the first stirring shaft as a central shaft, so that the movement is more stable.
Preferably, the first stirring shaft plate is rotatably connected with a connecting plate, and all the second stirring shafts are rotatably connected with the connecting plate. The connecting plate can guarantee that first (mixing) shaft and second (mixing) shaft can not take place along the displacement of axial direction at the during operation, guarantees that the motion state is stable, has guaranteed simultaneously that all second (mixing) shafts are stable with the relative position between the first (mixing) shaft, can not change along with rotating.
Preferably, the sealing cover is provided with an annular step, and the annular step is provided with a sealing gasket. The sealing effect of the sealing cover on the mixing barrel can be guaranteed by the arrangement of the annular step and the sealing gasket, and the air leakage can not occur when air is pumped out.
Drawings
Fig. 1 is a schematic structural diagram of a stirring defoaming device for conductive silver paste according to the present invention.
FIG. 2 is a schematic view of the cross-sectional structure along the line "A-A" in FIG. 1.
FIG. 3 is a schematic view of the cross-sectional structure along the direction "B-B" in FIG. 1.
Wherein, 1, mixing barrel; 2. a sealing cover; 2.1, an annular step; 2.2, an air outlet; 3. a stirring device; 3.1, a first stirring shaft; 3.2, a first gear; 3.3, a first stirring blade; 3.4 second stirring shaft; 3.5, a second gear; 3.6, a second stirring blade; 4. a motor; 5. a vacuum pump; 5.1, connecting pipes; 6. a connecting plate; 7. and a gasket.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
The invention provides a stirring defoaming device for conductive silver paste, which comprises a mixing barrel 1, a stirring device 3 and a sealing cover 2, wherein the sealing cover 2 is connected with the mixing barrel 1 in a threaded connection or a buckling connection or a bolt connection mode, the sealing cover 2 is connected with a vacuum pump 5, an air suction port of the vacuum pump 5 is connected with an air outlet 2.2 on the sealing cover 2 through a connecting pipe 5.1, the sealing cover 2 is provided with a motor 4, an output shaft of the motor 4 is connected with the stirring device 3, and the stirring device 3 extends into the mixing barrel.
The stirring device 3 comprises a first stirring shaft 3.1, the first stirring shaft 3.1 drives the first stirring shaft to rotate through a motor 4, the motor 4 is arranged outside a sealing cover 2, a driving shaft of the motor 4 penetrates through the sealing cover 2 to be connected with the first stirring shaft 3.1, a first stirring blade 3.3 is arranged on the first stirring shaft 3.1, the first stirring shaft 3.1 is further connected with a first gear 3.2, the first gear 3.2 rotates along with the first stirring shaft 3.1, the first gear 3.2 is meshed with a second gear 3.5, the second gear 3.5 is driven to rotate when the first stirring shaft rotates, the second gear 3.5 can drive the second stirring shaft 3.4 to move along with the second stirring shaft, and the second stirring shaft 3.4 stirs the silver paste through the second stirring blade 3.6 when the second stirring shaft rotates.
First stirring vane 3.3 on first (mixing) shaft 3.1 and second stirring vane 3.6 on the second (mixing) shaft 3.4 are crisscross to be set up, when guaranteeing that first (mixing) shaft 3.1 and second (mixing) shaft 3.4 rotate simultaneously, first stirring vane 3.3 can not interfere with each other with second stirring vane 3.6 to cause the collision and cause the loss.
Second gear 3.5 and second (mixing) shaft 3.4 set up to two at least, set up to three in this embodiment, can cooperate with first (mixing) shaft 3.1 well to stir the processing to silver thick liquid.
The first stirring shaft 3.1 is rotatably connected with a connecting plate 6, the second stirring shaft 3.4 is rotatably connected with the connecting plate 6, when the connecting plate 6 can ensure that the first stirring shaft 3.1 is connected with the second stirring shaft 3.4, the first gear 3.2 and the second gear 3.5 cannot displace along the axial direction, the stable motion state is ensured, and meanwhile, the relative positions between all the second stirring shafts 3.4 and the first stirring shaft 3.1 are ensured to be stable, and the change can not occur along with the rotation. The shape of the connecting plate 6 can be set to various shapes, such as a circle, an equilateral polygon, etc., and the Y-shaped structure is adopted in the embodiment, so that the material can be saved, and the weight of the connecting plate can be reduced.
Be equipped with annular step 2.1 on the sealed lid 2, be equipped with sealed 7 on the annular step 2.1, sealed 7 can adopt rubber material, can prevent that the vacuum pump 5 on the sealed lid 2 from taking place gas leakage when bleeding to lead to the unable condition that makes the atmospheric pressure in the blending barrel 1 reach the requirement. In the embodiment, the sealing cover 2 is connected with the mixing barrel 1 in a bolt penetrating and locking manner, so that the sealing relation between the sealing cover and the mixing barrel is stable, and air leakage cannot easily occur; meanwhile, the sealing cover 2 and the mixing barrel 1 can be connected in a threaded connection mode or in a buckling connection mode.
The suction port of the vacuum pump 5 is connected with the air outlet 2.2 on the sealing cover 2 through a connecting pipe 5.1, the suction port of the connecting pipe 5.1 and the air outlet 2.2 on the sealing cover 2 are connected in a threaded connection mode or a buckling connection mode, and a pressure gauge can be additionally arranged between the vacuum pump 5 and the sealing cover 2 to monitor the air exhaust process.
In the embodiment, the motor 4 is fixedly arranged outside the sealing cover 2, and the output shaft of the motor 4 penetrates through the sealing cover 2, extends to the inner side of the sealing cover 2, and is connected with the first stirring shaft 3.1 of the stirring device 3.
The working principle is that the materials of metal silver particles, base resin, solvent, auxiliary agent and the like which form the silver paste are poured into a mixing barrel 1 according to a certain proportion, the motor 4 can be started by covering the sealing cover 2 on the mixing barrel 1, the motor 4 drives the first stirring shaft 3.1 to rotate along with the first stirring shaft, the first stirring blade 3.3 on the first stirring shaft 3.1 stirs the slurry in the mixing barrel 1, when the first stirring shaft 3.1 rotates, the first gear 3.2 rotates along with the first stirring shaft, and drives the second gear 3.5 meshed with the first gear 3.2 to rotate, so as to drive the second gear 3.5 to rotate together, when the second gear 3.5 rotates, the second stirring shaft 3.4 is driven to rotate together, and the slurry in the mixing barrel 1 is stirred by the second stirring blade 3.6, under the combined action of the first stirring shaft 3.1 and the second stirring shaft 3.4, the stirring efficiency is increased; after the stirring is accomplished, the air in vacuum pump 5 through connecting on the sealed lid 2 with mixing drum 1 is taken out, and at the in-process that the air was taken out, atmospheric pressure in mixing drum 1 reduces for the bubble of sneaking into in the silver thick liquid is discharged under the effect of negative pressure, alright with the inside bubble of effectual silver thick liquid of getting rid of, improve the quality of silver thick liquid.
The foregoing has described preferred embodiments of the present invention and is not to be construed as limiting the claims. The invention is not limited to the above embodiments, and its specific structure allows variations, all of which are within the scope of the independent claims of the invention.
Claims (7)
1. The utility model provides a stirring fire fighting equipment of electrically conductive silver thick liquid, it includes mixing bucket (1), agitating unit (3), sealed lid (2), its characterized in that, sealed lid (2) with mixing bucket (1) is connected through threaded connection or buckle connection or bolted connection's mode, be connected with vacuum pump (5) on sealed lid (2), the induction port of vacuum pump (5) pass through connecting pipe (5.1) with gas outlet (2.2) on the sealed lid (2) are connected, be equipped with motor (4) on sealed lid (2), the output shaft of motor (4) has agitating unit (3), agitating unit (3) extend to in mixing bucket (1).
2. The stirring defoaming device of conductive silver paste according to claim 1, wherein the stirring device (3) comprises a first stirring shaft (3.1), a plurality of first stirring blades (3.3) are arranged on the first stirring shaft (3.1), and the first stirring shaft (3.1) is driven by the motor (4).
3. The stirring defoaming device of conductive silver paste according to claim 2, characterized in that the stirring device (3) further comprises a first gear (3.2), a second gear (3.5) and a second stirring shaft (3.4), the first gear (3.2) is arranged on the first stirring shaft (3.1) and is meshed with the second gear (3.5), the second stirring shaft (3.4) is connected with the second gear (3.5), and a plurality of second stirring blades (3.6) are arranged on the second stirring shaft (3.4).
4. The stirring defoaming device of conductive silver paste according to claim 3, wherein the second stirring blades (3.6) are staggered with the first stirring blades (3.3).
5. The stirring defoaming device for conductive silver paste according to claim 4, wherein at least two second gears (3.5) and at least two second stirring shafts (3.4) are provided, and all the second gears (3.5) and the second stirring shafts (3.4) are circumferentially arranged in an array by taking the first stirring shaft (3.1) as a central axis.
6. The stirring defoaming device of conductive silver paste according to claim 5, characterized in that the first stirring shaft (3.1) is rotatably connected with a connecting plate (6), and all the second stirring shafts (3.4) are rotatably connected with the connecting plate (6).
7. The stirring defoaming device of conductive silver paste according to claim 1, wherein an annular step (2.1) is arranged on the sealing cover (2), and a sealing gasket (7) is arranged on the annular step (2.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911259126.XA CN110935200A (en) | 2019-12-10 | 2019-12-10 | Stirring fire fighting equipment of electrically conductive silver thick liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911259126.XA CN110935200A (en) | 2019-12-10 | 2019-12-10 | Stirring fire fighting equipment of electrically conductive silver thick liquid |
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| Publication Number | Publication Date |
|---|---|
| CN110935200A true CN110935200A (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911259126.XA Pending CN110935200A (en) | 2019-12-10 | 2019-12-10 | Stirring fire fighting equipment of electrically conductive silver thick liquid |
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| Country | Link |
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| CN (1) | CN110935200A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111773770A (en) * | 2020-06-12 | 2020-10-16 | 吕波 | Stirring mechanism is got rid of in carbon-fibre composite preimpregnation hole |
| CN113447543A (en) * | 2021-08-31 | 2021-09-28 | 深圳市检验检疫科学研究院 | Magnetic graphene oxide material, trace heavy metal detection device applying magnetic graphene oxide material and detection method |
| CN114837105A (en) * | 2022-05-12 | 2022-08-02 | 江西天丰建设集团有限公司 | Bridge reinforcing member insert type grouting process and grouting device |
| CN116168897A (en) * | 2023-04-26 | 2023-05-26 | 四川铭世捷电子材料有限公司 | Preparation device and preparation method of air-soluble conductive silver paste |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202307326U (en) * | 2011-09-28 | 2012-07-04 | 邓水斌 | Vacuum defoaming device of conductive silver paster used for touch screen |
| CN208115230U (en) * | 2018-03-13 | 2018-11-20 | 深圳市耀威镀膜科技有限公司 | A kind of fully automatic vacuum Defoaming machine |
| CN209646372U (en) * | 2018-12-25 | 2019-11-19 | 杭州宝积生物科技有限公司 | A kind of coaxial rotating cylinder multipurpose mixing machine |
-
2019
- 2019-12-10 CN CN201911259126.XA patent/CN110935200A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202307326U (en) * | 2011-09-28 | 2012-07-04 | 邓水斌 | Vacuum defoaming device of conductive silver paster used for touch screen |
| CN208115230U (en) * | 2018-03-13 | 2018-11-20 | 深圳市耀威镀膜科技有限公司 | A kind of fully automatic vacuum Defoaming machine |
| CN209646372U (en) * | 2018-12-25 | 2019-11-19 | 杭州宝积生物科技有限公司 | A kind of coaxial rotating cylinder multipurpose mixing machine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111773770A (en) * | 2020-06-12 | 2020-10-16 | 吕波 | Stirring mechanism is got rid of in carbon-fibre composite preimpregnation hole |
| CN113447543A (en) * | 2021-08-31 | 2021-09-28 | 深圳市检验检疫科学研究院 | Magnetic graphene oxide material, trace heavy metal detection device applying magnetic graphene oxide material and detection method |
| CN113447543B (en) * | 2021-08-31 | 2021-11-23 | 深圳市检验检疫科学研究院 | Trace heavy metal detection equipment and detection method applying magnetic graphene oxide material |
| CN114837105A (en) * | 2022-05-12 | 2022-08-02 | 江西天丰建设集团有限公司 | Bridge reinforcing member insert type grouting process and grouting device |
| CN114837105B (en) * | 2022-05-12 | 2023-11-14 | 江西天丰建设集团有限公司 | Bridge reinforcement member inserting type grouting process and grouting device |
| CN116168897A (en) * | 2023-04-26 | 2023-05-26 | 四川铭世捷电子材料有限公司 | Preparation device and preparation method of air-soluble conductive silver paste |
| CN116168897B (en) * | 2023-04-26 | 2023-09-12 | 四川铭世捷电子材料有限公司 | Preparation device and preparation method of air-soluble conductive silver paste |
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Application publication date: 20200331 |
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