CN110898925B - Automatic grinding configuration device of conductive silver adhesive for LED production - Google Patents

Automatic grinding configuration device of conductive silver adhesive for LED production Download PDF

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Publication number
CN110898925B
CN110898925B CN201911217805.0A CN201911217805A CN110898925B CN 110898925 B CN110898925 B CN 110898925B CN 201911217805 A CN201911217805 A CN 201911217805A CN 110898925 B CN110898925 B CN 110898925B
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grinding
fixedly connected
conductive silver
groove
sieve
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CN201911217805.0A
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CN110898925A (en
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黄树赞
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Nanjing Liuhe Technology Venture Capital Development Co.,Ltd.
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Nanjing Liuhe Technology Venture Capital Development Co ltd
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Priority to CN201911217805.0A priority Critical patent/CN110898925B/en
Priority to CN202110567348.9A priority patent/CN113182020A/en
Publication of CN110898925A publication Critical patent/CN110898925A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B02C2023/165Screen denying egress of oversize material

Abstract

The invention belongs to the field of LED production equipment, and particularly relates to an automatic grinding and configuring device for conductive silver adhesive for LED production, which comprises a configuring box body, wherein a sieve plate is connected on the inner side wall of the configuring box body in a sliding manner, a bubble breaking mechanism is arranged at the lower end of the sieve plate, an annular supporting plate is fixedly connected on the inner side wall of the configuring box body, a grinding groove is fixedly connected on the inner ring side wall of the annular supporting plate, the grinding groove and the sieve plate are both made of magnetic materials and repel each other in the same polarity, a plurality of grinding holes penetrating through the grinding groove are formed in the grinding groove, a grinding ball is arranged above the grinding groove, a storage cavity is formed in the grinding ball, and the grinding ball and the grinding groove are arranged in a matching manner. The silver powder can be ground by the grinding balls and the grinding groove, the position of the grinding balls is adjusted by the temperature generated during grinding, the silver powder is automatically added, the sieve plate is driven to move for defoaming operation, and the conductive silver adhesive is rapidly prepared.

Description

Automatic grinding configuration device of conductive silver adhesive for LED production
Technical Field
The invention belongs to the field of LED production equipment, and particularly relates to an automatic grinding and configuring device for conductive silver adhesive for LED production.
Background
The conductive silver adhesive combines the conductive particles together through the bonding effect of matrix resin to form a conductive path, so as to realize the conductive connection of bonded materials, and the conductive silver adhesive is widely applied to the packaging and bonding of electronic elements and components such as Liquid Crystal Displays (LCDs), Light Emitting Diodes (LEDs), Integrated Circuit (IC) chips, Printed Circuit Board Assemblies (PCBAs), dot matrix blocks, ceramic capacitors, membrane switches, smart cards, radio frequency identification and the like, and has the tendency of gradually replacing the traditional tin soldering welding.
When the existing conductive silver adhesive is prepared, the flaky silver powder BAgF-20 and the granular silver powder sAg-ZA are ground and then added into the resin matrix for mixing until the silver powder is completely and uniformly mixed with the resin matrix, and then a proper amount of silver powder is added, so that the silver powder needs to be added in batches, the operation is troublesome, and the content of the silver powder in the conductive silver adhesive has errors due to easy occurrence of misoperation; and the conductive silver adhesive is easy to generate a large amount of bubbles in the preparation process, and the bubbles are gathered on the surface of the conductive silver adhesive to influence the uniform mixing of the silver powder and the resin matrix, so that the rapid preparation of the conductive silver adhesive is not facilitated.
Therefore, we propose an automatic grinding and configuring device for conductive silver paste for LED production to solve the above problems.
Disclosure of Invention
The invention aims to solve the problems that the conductive silver adhesive is inconvenient to prepare and easy to generate bubbles, and provides an automatic grinding and preparing device for the conductive silver adhesive for LED production, which has small error and simple and convenient operation and can automatically defoam.
In order to achieve the purpose, the invention adopts the following technical scheme: an automatic grinding and configuring device for conductive silver adhesive for LED production comprises a configuring box body, wherein a sieve plate is connected on the inner side wall of the configuring box body in a sliding manner, a bubble breaking mechanism is arranged at the lower end of the sieve plate, an annular supporting plate is fixedly connected on the inner side wall of the configuring box body, grinding grooves are fixedly connected on the inner ring side wall of the annular supporting plate, the grinding grooves and the sieve plate are made of magnetic materials and repel each other in the same polarity, a plurality of grinding holes penetrating through the grinding grooves are formed in the grinding grooves, grinding balls are arranged above the grinding grooves, a storage cavity is formed in the grinding balls, the grinding balls and the grinding grooves are matched, grinding bulges are arranged on the lower surfaces of the grinding balls, a discharging mechanism penetrating through the grinding balls is arranged on the side wall of the storage cavity, a lifting plate is rotatably sleeved on the side wall of the grinding balls, and the lower end of the lifting plate is fixedly connected with the annular supporting plate through two memory springs capable of being heated and contracted, and the upper end of the configuration box body is provided with a driving mechanism.
In the automatic grinding and configuring device for the conductive silver adhesive for LED production, the inner side wall of the configuring box body is fixedly connected with a limiting plate, and the lower end of the limiting plate is fixedly connected with the sieve plate through a vibrating spring.
In foretell LED production is with automatic configuration device that grinds of conductive silver colloid, broken bubble mechanism is including many broken bubble needles of fixed connection on the sieve lower surface, many broken bubble needle is the annular array setting at the lower surface of sieve.
In foretell LED production is with automatic configuration device that grinds of conductive silver adhesive, discharge mechanism is including setting up the discharge opening in grinding the ball, sealed sliding connection has the sealed piece on the lateral wall of discharge opening, the sealed piece is T style of calligraphy setting, the sealed piece passes through reset spring and the lateral wall fixed connection of grinding the ball, the sealed piece is made by magnetic material, just the sealed piece is inhaled with grinding the groove heteropolar mutually.
In the above automatic grinding and configuring device for conductive silver paste for LED production, the driving mechanism includes a motor fixedly mounted on the upper end of the configuring box, an output shaft of the motor penetrates through the side wall of the configuring box and extends into the configuring box, the upper end of the grinding ball is fixedly connected with a sleeve, and the sleeve is slidably sleeved outside the output shaft of the motor.
In foretell LED production is with automatic configuration device that grinds of conductive silver colloid, the lower extreme of lifter plate rotates and is connected with the dwang, the lower extreme of dwang runs through annular support board and sieve and fixedly connected with impeller in proper order, the annular support board internal fixation inlays and is equipped with a screw thread section of thick bamboo, the dwang is equipped with the screw thread outward, the screw thread section of thick bamboo cover establish outside the dwang and with dwang threaded connection, dwang and sieve sliding connection.
Compared with the prior art, this LED production is with automatic grinding configuration device of conductive silver colloid's advantage lies in:
1. according to the invention, by arranging the grinding balls and the grinding groove, the grinding balls can be driven by the motor to rotate, the flaky silver powder BAgF-20 and the granular silver powder sAg-ZA in the grinding groove are ground, and the ground silver powder falls into the resin matrix in the box body through the grinding holes to be mixed.
2. According to the invention, when the grinding ball grinds the silver powder in the grinding groove, a large amount of heat is generated due to friction between the grinding protrusion and the silver powder, the memory spring capable of being heated and contracted is in a shortened state at a higher temperature, and the lifting plate pulls the grinding ball to move into the grinding groove, so that the grinding force of the grinding ball on the silver powder is ensured.
3. According to the invention, when the temperature in the grinding groove is higher, the temperature reaches the Curie point of the grinding groove, at the moment, the sealing block is not influenced by the magnetic force of the grinding groove due to the demagnetization of the grinding groove at high temperature, and the sealing block seals the discharge hole under the action of the return spring.
4. According to the invention, after the silver powder in the grinding groove is ground, the temperature of the grinding groove is reduced, the memory spring capable of being heated and contracted extends when the temperature is lower, the grinding ball is bounced, meanwhile, the grinding groove recovers magnetism, suction force is generated on the sealing block, the sealing block is pulled to slide out of the discharge hole, the silver powder in the storage cavity falls into the grinding groove through the discharge hole, the motor continuously drives the grinding ball to rotate, the silver powder is ground again, and the silver powder can be automatically added into the resin matrix in batches.
5. According to the invention, after the silver powder in the grinding groove is ground, the temperature of the grinding groove is reduced, the grinding groove recovers magnetism, a repulsion effect is generated on the sieve plate, the sieve plate drives the bubble breaking needle to move downwards, bubbles generated on the liquid surface of the conductive silver colloid are broken and eliminated, the silver powder and the resin matrix are conveniently and uniformly mixed, and the rapid configuration of the conductive silver colloid is facilitated.
6. According to the invention, the vibrating spring is arranged, the grinding groove pushes the sieve plate to move downwards under the action of magnetic force, the vibrating spring is compressed, and after the grinding groove is demagnetized again, the vibrating spring pushes the sieve plate to reset and drives the sieve plate to vibrate up and down, so that silver powder on the upper surface of the sieve plate is shaken off into the lower resin matrix.
7. According to the invention, when the memory spring which can be heated and contracted extends, the lifting plate is driven to move upwards, and then the rotating rod is driven to move upwards, and because the threaded cylinder cannot rotate, the rotating rod drives the stirring impeller to rotate to stir the resin matrix, so that the silver powder is ensured to be uniformly distributed in the resin matrix.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment 1 of an automatic grinding and arranging device for conductive silver paste for LED production according to the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic structural diagram of a grinding ball in an embodiment 1 of an automatic grinding and arranging apparatus for conductive silver paste for LED production according to the present invention;
fig. 4 is a schematic structural diagram of an embodiment 2 of an automatic grinding and arranging device for conductive silver paste for LED production according to the present invention.
In the figure, 1 is provided with a box body, a sieve plate 2, a bubble breaking mechanism 3, a ring-shaped supporting plate 4, a grinding groove 5, a grinding hole 6, a grinding ball 7, a material storage cavity 8, a grinding bulge 9, a discharging mechanism 10, a lifting plate 11, a memory spring 12 capable of being contracted by heat, a driving mechanism 13, a limiting plate 14, a vibrating spring 15, a bubble breaking needle 16, a discharging hole 17, a sealing block 18, a return spring 19, a motor 20, a rotating rod 21, a threaded cylinder 22, a stirring impeller 23 and a sleeve 24.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Example 1
As shown in fig. 1-3, an automatic grinding configuration device of conductive silver adhesive for LED production, including configuration box 1, sliding connection has sieve 2 on the inside wall of configuration box 1, it should be noted that, sieve 2 is porous sieve, fixedly connected with limiting plate 14 on the inside wall of configuration box 1, vibrating spring 15 and sieve 2 fixed connection are passed through to the lower extreme of limiting plate 14, the lower extreme of sieve 2 is equipped with broken bubble mechanism 3, it should be noted that, broken bubble mechanism 3 includes many broken bubble needles 16 of fixed connection at the 2 lower surfaces of sieve, many broken bubble needles 16 are the lower surface that the annular array set up at sieve 2.
In this embodiment, fixedly connected with annular support plate 4 on the inside wall of configuration box 1, fixedly connected with grinds groove 5 on the inner circle lateral wall of annular support plate 4, it is repellent to grind groove 5 and sieve 2 by magnetic material make and like poles, it is made by Mn-Zn ferrite material to grind groove 5, the curie point is 105 ℃, it is equipped with a plurality of grinding holes 6 that run through to grind the setting of groove 5 to grind inslot 5, it is equipped with grinding ball 7 to grind the top of groove 5, be equipped with storage cavity 8 in the grinding ball 7, grinding ball 7 and grinding groove 5 match the setting, and the lower surface of grinding ball 7 is equipped with grinds arch 9.
In this embodiment, be equipped with the discharge mechanism 10 that runs through grinding ball 7 and set up on the lateral wall of storage cavity 8, it should be said that, discharge mechanism 10 is including setting up discharge opening 17 in grinding ball 7, and sealed sliding connection has seal block 18 on discharge opening 17's the lateral wall, and seal block 18 is the setting of T style of calligraphy, and seal block 18 passes through reset spring 19 and grinding ball 7's lateral wall fixed connection, and seal block 18 is made by magnetic material, and seal block 18 and grinding groove 5 heteropolar looks inhale.
In this embodiment, the side wall of the grinding ball 7 is rotatably sleeved with a lifting plate 11, the lower end of the lifting plate 11 is fixedly connected with the annular support plate 4 through two memory springs 12 capable of being heated and contracted, the memory springs 12 capable of being heated and contracted are made of CuZnAl memory alloy in a winding mode, the state is a shortened state when the temperature is higher than 65 ℃, when the temperature is reduced to room temperature, the memory springs 12 capable of being heated and contracted extend to a natural state, the upper end of the configuration box 1 is provided with a driving mechanism 13, it should be noted that the driving mechanism comprises a motor 20 fixedly installed at the upper end of the configuration box 1, the model of the motor 20 is Y2-160M-4, an output shaft of the motor 20 penetrates through the side wall of the configuration box 1 and extends into the configuration box 1, the upper end of the grinding ball 7 is fixedly connected with a sleeve 24, and the sleeve 24 is slidably sleeved outside the output shaft of the motor 20.
The working principle of the embodiment is as follows: through setting up grinding ball 7 and grinding groove 5, accessible motor 20 drives grinding ball 7 and rotates, flake silver powder BAgF-20 and granular silver powder sAg-ZA to grinding groove 5 in grind, the silver powder after the grinding drops through grinding hole 6 and mixes in the resin base member of configuration box 1, when grinding ball 7 grinds the silver powder in grinding groove 5, because of grinding the protruding 9 and generating a large amount of heats of friction between the silver powder, memory spring 12 that can be heated and contracted is in the shortened state when the temperature is higher, and remove to grinding groove 5 through lifter plate 11 pulling grinding ball 7, the grinding dynamics of grinding ball 7 to silver powder has been guaranteed.
When the temperature in the grinding groove 5 is high, the temperature reaches the Curie point of the grinding groove 5, at the moment, the grinding groove 5 is demagnetized due to high temperature, the sealing block 18 is not under the magnetic action of the grinding groove 5, and the discharging hole 17 is sealed by the sealing block 18 under the action of the return spring 19.
After the silver powder in the grinding groove 5 is ground, the temperature of the grinding groove 5 is reduced, the memory spring 12 capable of being heated and contracted extends when the temperature is lower, the grinding ball 7 is bounced, meanwhile, the grinding groove 5 recovers magnetism, suction force is generated on the sealing block 18, the sealing block 18 is pulled to slide out of the discharge hole 17, the silver powder in the storage cavity 8 drops into the grinding groove 5 through the discharge hole 17, the motor 20 continuously drives the grinding ball 7 to rotate, the silver powder is ground again, the silver powder can be automatically added into the resin matrix in batches, the temperature in the grinding groove 5 is reduced, the grinding groove 5 recovers magnetism, a repulsion effect is generated on the sieve plate 2, the bubble breaking needle 16 is driven to move downwards through the sieve plate 2, bubbles generated on the liquid surface of the conductive silver colloid are broken and eliminated, the silver powder and the resin matrix are conveniently and uniformly mixed, and the quick configuration of the conductive silver colloid is facilitated.
Grinding groove 5 pushes sieve 2 to move downwards under the action of magnetic force, and vibrating spring 15 is compressed, and after grinding groove 5 is demagnetized again, vibrating spring 15 pushes sieve 2 to reset to drive sieve 2 to vibrate from top to bottom, shake off the silver powder on the upper surface of sieve 2 to the resin matrix below.
Example 2
As shown in fig. 4, the present embodiment is different from embodiment 1 in that: the lower extreme of lifter plate 11 rotates and is connected with dwang 21, and annular backup pad 4 and sieve 2 and fixedly connected with impeller 23 are run through in proper order to the lower extreme of dwang 21, and annular backup pad 4 internal fixation inlays and is equipped with a screw thread section of thick bamboo 22, and dwang 21 is equipped with the screw thread outward, and screw thread section of thick bamboo 22 cover is established outside dwang 21 and with dwang 21 threaded connection, dwang 21 and 2 sliding connection of sieve.
In this embodiment, when the memory spring 12 that can be heated the shrink is elongated, drive lifter plate 11 rebound, drive dwang 21 rebound then, because of the unable rotation of screw thread section of thick bamboo 22, then dwang 21 drives impeller 23 and rotates, stirs the resin base member, guarantees silver powder evenly distributed in the resin base member.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (6)

1. The utility model provides a LED production is with automatic configuration device that grinds of conductive silver adhesive, includes configuration box (1), its characterized in that, sliding connection has sieve (2) on the inside wall of configuration box (1), the lower extreme of sieve (2) is equipped with broken bubble mechanism (3), fixedly connected with annular support plate (4) on the inside wall of configuration box (1), fixedly connected with grinding groove (5) on the inner circle lateral wall of annular support plate (4), grinding groove (5) and sieve (2) are made by magnetic material and like poles repel each other, be equipped with a plurality of grinding holes (6) that run through grinding groove (5) and set up in grinding groove (5), the top of grinding groove (5) is equipped with grinding ball (7), be equipped with storage cavity (8) in grinding ball (7), grinding ball (7) and grinding groove (5) matching set up, and the lower surface of grinding ball (7) is equipped with grinds arch (9), be equipped with discharge mechanism (10) that runs through grinding ball (7) and set up on the lateral wall of storage cavity (8), it has cup jointed lifter plate (11) to rotate on the lateral wall of grinding ball (7), the lower extreme of lifter plate (11) is through two memory spring (12) and the annular support board (4) fixed connection that can be heated the shrink, actuating mechanism (13) are installed to the upper end of configuration box (1).
2. The automatic grinding and configuring device of the conductive silver adhesive for the LED production according to claim 1, wherein a limiting plate (14) is fixedly connected to the inner side wall of the configuring box body (1), and the lower end of the limiting plate (14) is fixedly connected with the sieve plate (2) through a vibrating spring (15).
3. The automatic grinding and configuring device of the conductive silver paste for the LED production according to claim 1, wherein the bubble breaking mechanism (3) comprises a plurality of bubble breaking needles (16) fixedly connected to the lower surface of the sieve plate (2), and the plurality of bubble breaking needles (16) are arranged on the lower surface of the sieve plate (2) in an annular array.
4. The automatic grinding and configuring device of the conductive silver paste for the LED production according to claim 1, wherein the discharging mechanism (10) comprises a discharging hole (17) arranged in the grinding ball (7), a sealing block (18) is connected to the side wall of the discharging hole (17) in a sliding and sealing manner, the sealing block (18) is arranged in a T shape, the sealing block (18) is fixedly connected with the side wall of the grinding ball (7) through a return spring (19), the sealing block (18) is made of a magnetic material, and the sealing block (18) and the grinding groove (5) are attracted in different poles.
5. The automatic grinding and configuring device of the conductive silver paste for the LED production according to claim 1, wherein the driving mechanism comprises a motor (20) fixedly mounted at the upper end of the configuration box body (1), an output shaft of the motor (20) penetrates through the side wall of the configuration box body (1) and extends into the configuration box body (1), a sleeve (24) is fixedly connected to the upper end of the grinding ball (7), and the sleeve (24) is sleeved outside the output shaft of the motor (20) in a sliding manner.
6. The automatic grinding and configuring device of conductive silver adhesive for LED production according to claim 1, wherein the lower end of the lifting plate (11) is rotatably connected with a rotating rod (21), the lower end of the rotating rod (21) sequentially penetrates through an annular support plate (4) and a sieve plate (2) and is fixedly connected with a stirring impeller (23), a threaded cylinder (22) is embedded in the annular support plate (4), threads are arranged outside the rotating rod (21), the threaded cylinder (22) is sleeved outside the rotating rod (21) and is in threaded connection with the rotating rod (21), and the rotating rod (21) is in sliding connection with the sieve plate (2).
CN201911217805.0A 2019-12-03 2019-12-03 Automatic grinding configuration device of conductive silver adhesive for LED production Active CN110898925B (en)

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CN201911217805.0A CN110898925B (en) 2019-12-03 2019-12-03 Automatic grinding configuration device of conductive silver adhesive for LED production
CN202110567348.9A CN113182020A (en) 2019-12-03 2019-12-03 Automatic grinding and configuring device and method for conductive silver adhesive for LED production

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CN110898925B true CN110898925B (en) 2021-09-21

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