Vibrating screen for conductive silver paste

Abstract

The utility model relates to a vibrating screen for conductive silver paste, in particular to the technical field of conductive silver paste processing equipment. The silver paste filtering device comprises the fixing frame, the supporting frame, the screen box, the feeding port, the rotating shaft, the discharging port, the first motor, the gear and the outer gear ring, the first motor is started to drive the rotating shaft to rotate to drive the stirring rods to stir silver paste, filtering of the silver paste is accelerated, the rotating shaft rotates and meanwhile drives the scraping rods to scrape off the silver paste adhering to the side wall of the screen box, and therefore the filtering efficiency is improved. A second motor is started to drive a gear to be meshed to drive an outer gear ring to rotate, so that a screen box also rotates along with the outer gear ring, and the screening efficiency and the screening uniformity of the conductive silver paste are greatly improved through simultaneous rotation of the screen box and a stirring scraper; and the screened conductive silver paste enters the bottom of the screening box and is further mixed under the action of the spiral mixing blades, so that the screening uniformity of the conductive silver paste is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive silver paste processing equipment, and particularly relates to a vibrating screen for conductive silver paste. Background Art

[0002] Conductive silver paste is a commonly used conductive material in the electronics industry and is widely used in the manufacturing process of electronic devices. Traditional screening equipment has problems such as low efficiency and uneven screening when processing conductive silver paste, which affects the quality of the silver paste and production efficiency. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] The utility model provides a vibrating screen for conductive silver paste, which overcomes the disadvantages of traditional screening equipment having problems such as low efficiency and uneven screening when processing conductive silver paste, affecting the quality of the silver paste and production efficiency.

[0005] (2) Technical Solutions

[0006] To solve the above technical problems, the utility model provides such a vibrating screen for conductive silver paste, including a fixed frame, a support frame, a sieve box, a feed inlet, a rotating shaft, a discharge port, a first motor, a gear, and an external gear ring. The support frame is provided on the fixed frame. Sliders are provided on both sides of the sieve box, and slide rails for slidably connecting with the sliders are fixedly connected to the support frame. The feed inlet is provided on the top of the sieve box. A first screen and a second screen are sequentially provided on the inner walls of both sides of the sieve box from top to bottom. The rotating shaft is vertically provided in the sieve box, and the lower end of the rotating shaft penetrates through the first screen and the second screen. Vibrators are installed below both sides of the first screen and the second screen. Stirring and scraping devices are connected to both sides of the rotating shaft above the first screen and between the first screen and the second screen. The discharge port is provided at the bottom of the sieve box, and the lower end of the rotating shaft extends into the discharge port. Mixing blades are provided on the rotating shaft corresponding to the lower part of the second screen. The upper end of the rotating shaft passes through the sieve box and the fixed frame and is connected to the output shaft of the first motor at the top of the fixed frame. A second motor is installed on the inner wall of one side of the fixed frame, the output of the second motor is downward and is fixedly connected with a gear, and the external gear ring is fixedly connected to the outer side wall of the sieve box, and the external gear ring meshes with the gear.

[0007] Preferably, the slide rail is an annular slide rail.

[0008] Preferably, the stirring and scraping device includes stirring rods connected to both sides of the rotating shaft and scraping rods provided above the stirring rods and connected to both sides of the rotating shaft.

[0009] Preferably, the scraping rod is in an inverted L shape, and the end of the horizontal arm is connected to the rotating shaft. The outer side wall of the vertical arm of the scraping rod contacts the inner side wall of the sieve box.

[0010] Preferably, a blanking door is provided at the bottom of the discharge port.

[0011] Preferably, bearings are provided at the positions where the rotating shaft contacts the fixed frame.

[0012] Preferably, the bottom of the sieve box is funnel-shaped and the discharge port is located at the lowest point of its bottom. The mixing blades are spiral and their size is adapted to the bottom of the sieve box.

[0013] (3) Beneficial effects

[0014] The utility model provides a vibrating sieve for conductive silver paste, which overcomes the problems of low efficiency and uneven screening existing in traditional screening equipment when dealing with conductive silver paste, affecting the quality and production efficiency of silver paste. Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. By starting the first motor to drive the rotation of the rotating shaft, the stirring rod is driven to stir the silver paste, accelerating the filtration of the silver paste. While the rotating shaft rotates, it also drives the scraping rod to scrape off the silver paste adhered to the side wall of the sieve box, ensuring the uniformity of the silver paste filtration and screening.

[0016] 2. By starting the second motor to drive the gear to engage and drive the outer gear ring to rotate, the sieve box is also driven to rotate. By the simultaneous rotation of the sieve box and the stirring and scraping device, the screening efficiency and uniformity of the conductive silver paste are greatly improved.

[0017] 3. The screened conductive silver paste enters the bottom of the sieve box and is further mixed under the action of the spiral mixing blades to improve the uniformity of the conductive silver paste screening. Description of the drawings

[0018] Figure 1 It is a front structural schematic diagram of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the connection between the rotating shaft, the stirring and scraping device and the mixing blades of the utility model.

[0020] The reference numerals are: 1 - fixed frame, 2 - support frame, 21 - slide rail, 3 - sieve box, 31 - slider, 4 - feed inlet, 5 - first screen, 6 - second screen, 7 - rotating shaft, 8 - stirring rod, 9 - scraping rod, 10 - mixing blade, 11 - discharge port, 12 - blanking door, 13 - vibrator, 14 - first motor, 15 - second motor, 16 - gear, 17 - outer gear ring. Specific embodiments

[0021] The present utility model will be further described in conjunction with the accompanying drawings and embodiments.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "vertical", "horizontal", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0023] As Figure 1 , 2 shown, a vibrating screen for conductive silver paste according to the present utility model includes a fixed frame 1, a support frame 2, a sieve box 3, a feed inlet 4, a rotating shaft 7, a discharge port 11, a first motor 14, a gear 16, and an external gear ring 17. The support frame 2 is provided on the fixed frame 1. Slide blocks 31 are provided on both sides of the sieve box 3. Slide rails 21 for slidably connecting with the slide blocks 31 are fixedly connected to the support frame 2. The cooperation between the slide rails 22 and the slide blocks 23 makes the seasoning tank 3 rotate more smoothly. The feed inlet 4 is provided on the top of the sieve box 3. First sieve nets 5 and second sieve nets 6 are successively provided on the inner walls of both sides of the sieve box 3 from top to bottom. The rotating shaft 7 is vertically provided in the sieve box 3. The lower end of the rotating shaft 7 penetrates through the first sieve net 5 and the second sieve net 6. Vibrators 13 are installed below both sides of the first sieve net 5 and the second sieve net 6. Stirring and scraping devices are connected to both sides of the rotating shaft 7 corresponding to the upper side of the first sieve net 5 and between the first sieve net 5 and the second sieve net 6. The discharge port 11 is provided at the bottom of the sieve box 3. The lower end of the rotating shaft 7 extends into the discharge port 11. Mixing blades 10 are provided on the rotating shaft 7 corresponding to the lower side of the second sieve net 6. The upper end of the rotating shaft 7 passes through the sieve box 3 and the fixed frame 1 and is connected to the output shaft of the first motor 14 at the top of the fixed frame 1. A second motor 15 is installed on the inner wall of one side of the fixed frame 1. The output of the second motor 15 is downward and fixedly connected with a gear 16. The external gear ring 21 is fixedly connected to the outer side wall of the sieve box 3. The external gear ring 21 meshes with the gear 16.

[0024] The slide rail 21 is an annular slide rail. The stirring and scraping device includes stirring rods 8 connected to both sides of the rotating shaft 7 and scraping rods 9 provided above the stirring rods 8 and connected to both sides of the rotating shaft 7.

[0025] The scraping rod 9 is in an inverted L shape and the end of the horizontal arm is connected to the rotating shaft 7. The outer side wall of the vertical arm of the scraping rod 9 contacts the inner side wall of the sieve box 3.

[0026] A blanking door 12 is provided at the bottom of the discharging port 11, and bearings are provided at the positions where the rotating shaft 7 contacts the fixed frame 1.

[0027] The bottom of the screening box 3 is funnel-shaped and the discharging port 11 is located at the lowest position of its bottom. The mixing blades are spiral and their size is adapted to the bottom of the screening box 3.

[0028] Working principle: Pour the silver paste to be filtered from the feeding port 4 into the screening box 3. Start the vibrator 13 to drive the first screen 5 and the second screen 6 to vibrate, so as to accelerate the filtration of the silver paste. Then start the first motor 14 to drive the rotation of the rotating shaft 7 to drive the stirring rod 8 to stir the silver paste, so as to accelerate the filtration of the silver paste. While the rotating shaft 7 rotates, it also drives the scraping rod 9 to scrape off the silver paste adhering to the side wall of the screening box 3, ensuring the uniformity of the filtration and screening of the silver paste. Start the second motor 15 to drive the gear 16 to engage and drive the external gear ring 17 to rotate, so that the screening box 3 also rotates accordingly. By the simultaneous rotation of the screening box 3 and the stirring and scraping device, the screening efficiency and the screening uniformity of the conductive silver paste are greatly improved. The screened conductive silver paste enters the bottom of the screening box 3 and is further mixed under the action of the mixing blades to improve the screening uniformity of the conductive silver paste. After that, remove the blanking door 12, and the screened conductive silver paste is discharged from the discharging port 11.

[0029] The above embodiments only represent the preferred embodiments of the present invention, and the description is relatively specific and detailed. However, the present invention is not limited to these embodiments. It should be pointed out that for those of ordinary skill in the art. Without departing from the gist of the present invention, any improvement made falls within the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A vibrating screen for conductive silver paste, characterized in that: The invention comprises a fixed frame (1), a support frame (2), a screen box (3), a feed port (4), a rotating shaft (7), a discharge port (11), a first motor (14), a gear (16), and an outer gear ring (17), wherein the fixed frame (1) is provided with a support frame (2), sliders (31) are provided on both sides of the screen box (3), a slide rail (21) for sliding connection with the slider (31) is fixedly connected to the support frame (2), the feed port (4) is provided on the top of the screen box (3), the inner walls of both sides of the screen box (3) are provided with a first screen (5) and a second screen (6) in sequence from top to bottom, the rotating shaft (7) is vertically provided in the screen box (3), the lower end of the rotating shaft (7) passes through the first screen (5) and the second screen (6), a vibrator (13) is installed below both sides of the first screen (5) and the second screen (6), A stirring scraper is connected to both sides of the rotating shaft (7) above a screen (5) and between the first screen (5) and the second screen (6); the discharge port (11) is provided at the bottom of the screen box (3); the lower end of the rotating shaft (7) extends into the discharge port (11); a mixing blade (10) is provided on the rotating shaft (7) corresponding to the lower side of the second screen (6); the upper end of the rotating shaft (7) passes through the screen box (3) and the fixed frame (1) and is connected to the output shaft of the first motor (14) at the top of the fixed frame (1); a second motor (15) is installed on the inner wall of one side of the fixed frame (1); the output of the second motor (15) is downwardly arranged and fixedly connected to a gear (16); the outer gear ring (17) is fixedly connected to the outer wall of the screen box (3); the outer gear ring (17) is meshed with the gear (16).

2. A vibrating screen for conductive silver paste according to claim 1, characterized in that: The slide rail (21) is an annular slide rail.

3. The vibrating screen for conductive silver paste according to claim 1, characterized in that: The stirring scraper comprises stirring rods (8) connected to both sides of the rotating shaft (7) and scraping rods (9) arranged above the stirring rods (8) and connected to both sides of the rotating shaft (7).

4. A vibrating screen for conductive silver paste according to claim 3, characterized in that: The scraper rod (9) is in an inverted L-shape, and the end of the horizontal arm is connected to the rotating shaft (7). The outer side wall of the vertical arm of the scraper rod (9) contacts the inner side wall of the screen box (3).

5. The vibrating screen for conductive silver paste according to claim 1, characterized in that: A blocking door (12) is provided at the bottom of the discharge port (11).

6. The vibrating screen for conductive silver paste according to claim 1, characterized in that: A bearing is provided at the position where the rotating shaft (7) contacts the fixing frame (1).

7. The vibrating screen for conductive silver paste according to claim 1, characterized in that: The bottom of the screen box (3) is funnel-shaped and the discharge port (11) is located at the lowest point of the bottom. The mixing blade (10) is spiral-shaped and its size is adapted to the bottom of the screen box (3).

Images