Transfer device for SMD conductive silver glue production

Abstract

The present invention relates to the technical field of conductive silver paste, and specifically discloses a conveying device for the production of SMD conductive silver paste, including a base and a mounting plate installed on the base. A heating tank is installed on the mounting plate, and a stirring assembly is installed on the heating tank. A second mounting frame is installed on the top surface of the base, and a feeding pipe is installed on the second mounting frame. A pressurizing assembly is cooperatively installed on the feeding pipe. A connecting pipe is communicated between the feeding pipe and the heating tank. A first limiting assembly is symmetrically and rotatably arranged on the outer wall of the connecting pipe. A conversion assembly is slidably installed on the connecting pipe, and a pneumatic assembly is installed between the conversion assembly and the base. When the device is in use, through the mutual cooperation between the above structures, it is realized that when the device is used up, the SMD conductive silver paste adhered to the inner wall of the connecting pipe is quickly scraped into the heating tank or the feeding pipe, so as to achieve the effects of reducing the downtime of the device, improving the production efficiency and reducing the maintenance workload.

Description

Technical Field

[0001] The present invention belongs to the technical field of conductive silver paste, and specifically relates to a conveying device for the production of SMD conductive silver paste. Background Art

[0002] In the production process of SMD conductive silver paste, multiple complex technological steps are involved, including mixing, stirring, coating, and curing of raw materials. Among them, as an important link connecting various production links, the performance of the conveying device directly affects production efficiency, product quality, and production cost.

[0003] The patent with the authorization announcement number CN213324837U discloses a conveying device for the production of conductive silver paste. When the motor rotates, the rotating shaft can drive the stirring paddle to rotate, so that the stirring paddle can stir the conductive silver paste in the storage inner tank, thereby avoiding the solidification of the conductive silver paste caused by standing still. The heating layer is wound with coils, and when the coils inside the heating layer are energized, heat can be generated to heat the conductive silver paste in the storage inner tank, which can avoid the solidification of the conductive silver paste due to cooling and cause blockage of the equipment.

[0004] However, in the prior art, there is a discharge pipeline connected to the storage tank. As a connecting piece between the storage tank and the feeding pipe, the caliber of the discharge pipeline is small, resulting in difficulty in removing the SMD conductive silver paste adhered to its inner wall during cleaning after the device is used. Specifically, due to the small caliber of the discharge pipeline, a relatively thick coating is easily formed on the inner wall of the pipeline during the flow of the silver paste. When cleaning after the production is completed, it is very difficult to thoroughly clean the SMD silver paste adhered to the pipe wall. Over time, the residual silver paste will gradually dry and solidify, further increasing the cleaning difficulty, thus prolonging the downtime of the equipment, reducing the production efficiency, and increasing the cost and workload of equipment maintenance. Summary of the Invention

[0005] The purpose of the present invention is to provide a conveying device for the production of SMD conductive silver paste, so as to solve the problem in the prior art that there is a discharge pipeline connected to the storage tank. As a connecting piece between the storage tank and the feeding pipe, the caliber of the discharge pipeline is small, resulting in difficulty in removing the SMD conductive silver paste adhered to its inner wall during cleaning after the device is used, thereby prolonging the downtime of the equipment, reducing the production efficiency, and increasing the cost and workload of equipment maintenance.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] The conveying device for the production of SMD conductive silver paste includes a base and a mounting plate installed on the base. A heating tank is installed on the mounting plate, and a stirring assembly is installed on the heating tank. A second mounting frame is installed on the top surface of the base, and a feeding pipe is installed on the second mounting frame. A pressurizing assembly is cooperatively installed on the feeding pipe. A connecting pipe is connected between the feeding pipe and the heating tank. A first limiting assembly is symmetrically and rotatably arranged on the outer wall of the connecting pipe. A conversion assembly is slidably installed on the connecting pipe, and a pneumatic assembly is installed between the conversion assembly and the base;

[0008] The pneumatic assembly includes an electric vacuum pump. The electric vacuum pump is installed on the top surface of the base. A connecting cylinder is installed on one side of the top surface of the base near the electric vacuum pump. A moving cylinder is slidably installed in the connecting cylinder. The air pipe on the electric vacuum pump is communicated with the connecting cylinder;

[0009] The conversion assembly includes a mounting pipe. The mounting pipe is slidably installed in the connecting pipe. A connecting disk is installed below the inner cavity of the mounting pipe. Through holes are symmetrically opened on the side wall of the mounting pipe. Arc-shaped frames are symmetrically installed in the inner walls of the two through holes respectively. A second limiting assembly is installed between the four arc-shaped frames;

[0010] A scraping plate is clamped in the through hole. A communicating pipe is installed in the inner cavity of the mounting pipe. The communicating pipe penetrates through the inner wall of the mounting pipe and communicates with the outside of the mounting pipe. An electromagnetic valve is arranged on the communicating pipe.

[0011] Preferably: A first mounting frame is installed on the top surface of the connecting disk. A first spring is installed on the bottom surface of the inner cavity of the first mounting frame. One end of the first spring away from the first mounting frame is installed with a sealing plate. The sealing plate is slidably installed in the moving cylinder.

[0012] Preferably: The second limiting assembly includes a mounting frame, and the mounting frame is connected to the arc-shaped frame;

[0013] A third spring is installed on the side wall of the inner cavity of the mounting frame. One end of the third spring away from the inner cavity of the mounting frame is installed with a limiting block. The bottom surface of the limiting block is arc-shaped, and the radian of the bottom surface of the limiting block is the same as the radian of the inner cavity of the connecting pipe;

[0014] The mounting frame is slidably arranged between the two arc-shaped frames.

[0015] Preferably: A sliding groove is opened on the bottom surface of the limiting block. A sliding plate is slidably arranged in the sliding groove. A limiting groove is opened in the middle of the bottom surface of the mounting frame. The sliding plate is slidably arranged inside the limiting groove. A connecting frame is installed below the side wall of the sliding plate. The connecting frame is in an "L" shape. A top support plate is installed on the side wall of the connecting frame. The top support plate is in contact with the top surface of the connecting disk.

[0016] Preferably: A partition plate is installed in the middle of the inner cavity of the mounting pipe, and the partition plate is located between the communicating pipe and the arc-shaped frame.

[0017] Preferably, the first limiting component includes a rotating ring. A sliding hole is vertically formed in the side wall of the connecting pipe, and the mounting pipe is slidably mounted in the inner cavity of the sliding hole.

[0018] Rotating rings are respectively rotatably mounted on both sides of the outer wall of the connecting pipe at the positions of the sliding hole. A fixing cylinder is mounted on the side wall of the rotating ring. A second spring is mounted on the inner cavity side wall of the fixing cylinder. One end of the second spring away from the fixing cylinder is mounted with a first limiting ring. A plugging rod is mounted in the inner cavity of the first limiting ring. The plugging rod and the fixing cylinder slide relative to each other. Third limiting rings are respectively mounted on both sides of the inner cavity of the connecting pipe.

[0019] Preferably, a second limiting ring is mounted below the outer wall of the mounting pipe. Plugging holes are symmetrically formed in the top surface of the second limiting ring. The fixing cylinder is plugged in the inner cavity of the plugging hole. The bottom surface of the rotating ring contacts the top surface of the second limiting ring.

[0020] Preferably, the stirring component includes a motor. A motor is mounted on the top surface of the heating tank. The output shaft of the motor penetrates through the top of the heating tank and extends into the inner cavity of the heating tank. A stirring paddle is connected to the power output shaft of the motor.

[0021] A feed pipe is mounted on the side wall of the heating tank. A water inlet pipe is mounted on the top surface of the heating tank.

[0022] Preferably, the pressurizing component includes a hydraulic telescopic rod. A hydraulic telescopic rod is mounted on the top surface of the feeding pipe. The telescopic shaft of the hydraulic telescopic rod penetrates through the top of the feeding pipe and extends into the inner cavity of the feeding pipe. A pressure block is connected to the end of the telescopic shaft of the hydraulic telescopic rod. The side wall of the pressure block is in close contact with the inner wall of the feeding pipe. A plurality of discharge pipes are evenly distributed on the bottom surface of the feeding pipe.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. By arranging the pneumatic component, the conversion component and the first limiting component, when the device is in use, through the mutual cooperation among the above structures, it is realized that when the device is used up, the SMD conductive silver glue adhered to the inner wall of the connecting pipe is quickly scraped into the heating tank or the feeding pipe, so as to achieve the effects of reducing the device downtime, improving the production efficiency and reducing the maintenance workload.

[0025] 2. By arranging the pneumatic component, the conversion component and the first limiting component, when the device is in use, through the mutual cooperation among the above structures, after switching the positions of the connecting pipe and the scraping plate, when the scraping plate reaches the specified position, the limiting block moves between the connecting pipe, the through hole and the mounting frame under the action of the third spring, so as to achieve that when the scraping plate is not retracted, the whole mounting pipe will not move downward, and further achieve the purpose of improving the stability of the device.

[0026] 3. The present invention achieves the effect of facilitating the blocking of both ends of the connecting pipe when the solenoid valve is damaged by setting up a pneumatic component, a conversion component, and a first limiting component. This solves the problem in the prior art that when the valve is damaged, the flow of SMD conductive silver glue between the storage tank and the feeding pipe cannot be controlled, avoiding the continuous leakage and disorderly flow of the silver glue. At the same time, it can be adjusted in a short time and then continue production.

[0027] 4. The present invention realizes the effect of facilitating the replacement of the worn scraper by setting up a first limiting component, a second limiting ring, and a plugging hole. This further improves the maintenance efficiency of the device and the scraping effect of the SMD conductive silver glue on the inner wall of the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the overall three-dimensional view of the present invention;

[0029] Figure 2 is the front view of the present invention;

[0030] Figure 3 is the schematic structural view of the connecting pipe of the present invention;

[0031] Figure 4 is the cross-sectional view of the first limiting component of the present invention;

[0032] Figure 5 is Figure 4 the enlarged structural view at A in

[0033] Figure 6 is the cross-sectional view of the separated structure of the conversion component and the pneumatic component of the present invention;

[0034] Figure 7 is the schematic structural view of the pneumatic component of the present invention;

[0035] Figure 8 is the cross-sectional view of the pneumatic component of the present invention;

[0036] Figure 9 is the installation schematic view of the first spring of the present invention;

[0037] Figure 10 is the cross-sectional view of the second limiting component of the present invention;

[0038] Figure 11 is the front cross-sectional view of the present invention.

[0039] In the figure: 1. Base; 2. Mounting plate; 3. Heating tank; 4. Connecting pipe; 5. Pneumatic component; 501. Electric vacuum pump; 502. Connecting cylinder; 503. Moving cylinder; 504. Connecting disc; 505. First mounting bracket; 506. First spring; 507. Sealing plate; 6. Conversion component; 601. Mounting pipe; 602. Connecting pipe; 603. Solenoid valve; 604. Through hole; 605. Arc-shaped bracket; 606. Scraper; 607. Partition plate; 7. Feeding pipe; 8. Control panel; 9. First limiting component; 901. Rotating ring; 902. Fixed cylinder; 903. Inserting rod; 904. Second spring; 905. First limiting ring; 10. Sliding hole; 12. Second limiting ring; 13. Inserting hole; 14. Second limiting component; 141. Mounting frame; 142. Sliding plate; 143. Connecting frame; 144. Third spring; 145. Chute; 146. Supporting plate; 147. Limiting groove; 148. Limiting block; 15. Stirring component; 151. Motor; 152. Stirring paddle; 16. Feed pipe; 17. Water inlet pipe; 18. Pressurizing component; 181. Hydraulic telescopic rod; 182. Pressurizing block; 19. Second mounting bracket; 20. Discharge pipe; 21. Third limiting ring. Detailed implementation manners

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] Referring to Figures 1-11 As shown, the present invention provides a conveying device for the production of SMD conductive silver paste, including a base 1 and a mounting plate 2 mounted on the base 1. A heating tank 3 is mounted on the mounting plate 2. The heating tank 3 has a structure combining a storage tank and a heating layer as disclosed in the authorized publication number CN213324837U, and the working principle is the same, so no further details will be given here; a stirring component 15 is mounted on the heating tank 3. A second mounting bracket 19 is mounted on the top surface of the base 1. A feeding pipe 7 is mounted on the second mounting bracket 19. A pressurizing component 18 is cooperatively mounted on the feeding pipe 7. A connecting pipe 4 is connected between the feeding pipe 7 and the heating tank 3. First limiting components 9 are symmetrically and rotatably arranged on the outer wall of the connecting pipe 4. A conversion component 6 is slidably mounted on the connecting pipe 4. A pneumatic component 5 is mounted between the conversion component 6 and the base 1;

[0042] Among them, a control panel 8 is mounted on the side wall of the mounting plate 2. The control panel 8 is electrically connected to all the electrical devices in the device and controls the operation of the electrical devices;

[0043] The pneumatic component 5 includes an electric vacuum pump 501. The electric vacuum pump 501 is installed on the top surface of the base 1. A connecting cylinder 502 is installed on one side of the top surface of the base 1 close to the electric vacuum pump 501. A moving cylinder 503 is slidably installed in the connecting cylinder 502. The air pipe on the electric vacuum pump 501 is communicated with the connecting cylinder 502;

[0044] Among them, the electric vacuum pump 501 drives the pump shaft and the impeller to rotate through the motor to form a negative pressure area, thereby sucking in gas. By controlling the motor rotation direction and the valve state, the reverse flow of gas (i.e., inflation) can also be achieved. The electric vacuum pump 501 belongs to the common knowledge well-known to those skilled in the art and will not be described in detail here;

[0045] The conversion component 6 includes an installation pipe 601. The installation pipe 601 is slidably installed in the connecting pipe 4. A connecting disk 504 is installed below the inner cavity of the installation pipe 601. Through holes 604 are symmetrically opened on the side wall of the installation pipe 601. Arc-shaped frames 605 are symmetrically installed in the inner walls of the two through holes 604 respectively. A second limiting component 14 is installed between the four arc-shaped frames 605;

[0046] A scraping plate 606 is clamped in the through hole 604. A communicating pipe 602 is installed in the inner cavity of the installation pipe 601. The communicating pipe 602 penetrates through the inner wall of the installation pipe 601 and communicates with the outside of the installation pipe 601. An electromagnetic valve 603 is arranged on the communicating pipe 602. The electromagnetic valve 603 controls whether the SMD conductive silver glue can pass through the communicating pipe 602;

[0047] Limiting rings three 21 are respectively installed on both sides of the inner cavity of the connecting pipe 4. The limiting rings three 21 limit the moving distance of the scraping plate 606 to prevent the scraping plate 606 from detaching from the inner wall of the connecting pipe 4.

[0048] In a further embodiment, an installation frame one 505 is installed on the top surface of the connecting disk 504. A first spring 506 is installed on the bottom surface of the inner cavity of the installation frame one 505. A closing plate 507 is installed at one end of the first spring 506 away from the installation frame one 505. The closing plate 507 is slidably installed in the moving cylinder 503;

[0049] The first limiting component 9 includes a rotating ring 901. A sliding hole 10 is vertically opened on the side wall of the connecting pipe 4. The installation pipe 601 is slidably installed in the inner cavity of the sliding hole 10;

[0050] Rotating rings 901 are respectively rotatably installed on both sides of the outer wall of the connecting pipe 4 at the two sides of the sliding hole 10. A fixed cylinder 902 is installed on the side wall of the rotating ring 901. A second spring 904 is installed on the side wall of the inner cavity of the fixed cylinder 902. A first limiting ring 905 is installed at one end of the second spring 904 away from the fixed cylinder 902. A plugging rod 903 is installed in the inner cavity of the first limiting ring 905. The plugging rod 903 slides relative to the fixed cylinder 902;

[0051] The fixing cylinder 902 and the outer wall of the scraper 606 clamped in the through hole 604 are in contact with each other, so as to limit the position of the scraper 606;

[0052] A limit ring 12 is installed below the outer wall of the mounting tube 601 , and a plug hole 13 is symmetrically opened on the top surface of the limit ring 12 . The fixed tube 902 is plugged into the inner cavity of the plug hole 13 , and the bottom surface of the rotating ring 901 contacts the top surface of the limit ring 12 .

[0053] Among them, the closing plate 507 closes the movable cylinder 503 under normal conditions. When the electric vacuum pump 501 inflates the connecting cylinder 502 and the movable cylinder 503, the pressure is adjusted to allow the mounting tube 601 and the movable cylinder 503 to move up and down. Under the action of the spring 506, the closing plate 507 of the movable cylinder 503 will not separate from the inner cavity of the movable cylinder 503. Therefore, when the connecting tube 602 corresponds to the connecting tube 4, the plug-in rod 903 can be pressed upward to remove the plug-in rod 903 from the plug-in hole 13, and the rotating ring 901 and the fixed cylinder 902 can be flipped over to release the limit on the scraper 606, thereby facilitating the replacement of the scraper 606, thereby achieving the effect of facilitating the replacement of the worn scraper 606, further improving the maintenance efficiency of the device, and the effect of scraping the SMD conductive silver glue on the inner wall of the connecting tube 4.

[0054] In a further embodiment, the second limiting assembly 14 includes a mounting frame 141, and the mounting frame 141 is connected to the arc frame 605;

[0055] A spring 3 144 is installed on the inner cavity side wall of the installation frame 141, and a limit block 148 is installed on one end of the spring 3 144 away from the inner cavity of the installation frame 141. The bottom surface of the limit block 148 is arc-shaped, and the curvature of the bottom surface of the limit block 148 is the same as the curvature of the inner cavity of the connecting pipe 4;

[0056] The mounting frame 141 is slidably disposed between the two arc-shaped frames 605;

[0057] A slide groove 145 is provided on the bottom surface of the limit block 148, a slide plate 142 is slidably provided in the slide groove 145, a limit groove 147 is provided in the middle of the bottom surface of the installation frame 141, the slide plate 142 is slidably provided inside the limit groove 147, a connecting frame 143 is installed below the side wall of the slide plate 142, the connecting frame 143 is "L" shaped, a top support plate 146 is installed on the side wall of the connecting frame 143, and the top support plate 146 is in contact with the top surface of the connecting plate 504;

[0058] A partition plate 607 is installed in the middle of the inner cavity of the installation tube 601, and the partition plate 607 is located between the connecting tube 602 and the arc frame 605;

[0059] Among them, after the inner wall of the connecting pipe 4 is scraped by the scraping plate 606, the electric vacuum pump 501 discharges the gas in the connecting cylinder 502, the moving cylinder 503 and the mounting pipe 601 outward, reducing the air pressure therein. Subsequently, the scraping plate 606 moves in a direction. At this time, in order to prevent the conversion assembly 6 from descending, the limiting block 148 is located between the connecting pipe 4, the through hole 604 and the mounting frame 141, preventing the entire conversion assembly 6 from descending before the scraping plate 606 is not retracted into the through hole 604. When the limiting block 148 is initially disengaged from the connecting pipe 4, the scraping plate 606 will be located between the connecting pipe 4 and the through hole 604, further preventing the problem that the entire conversion assembly 6 descends before the scraping plate 606 is not retracted into the through hole 604.

[0060] In a further embodiment, the stirring assembly 15 includes a motor 151. The motor 151 is mounted on the top surface of the heating tank 3. The output shaft of the motor 151 penetrates the top of the heating tank 3 and extends into the inner cavity of the heating tank 3. A stirring paddle 152 is connected to the power output shaft of the motor 151.

[0061] A feed pipe 16 is mounted on the side wall of the heating tank 3, and a water inlet pipe 17 is mounted on the top surface of the heating tank 3; the pressurizing assembly 18 includes a hydraulic telescopic rod 181. The hydraulic telescopic rod 181 is mounted on the top surface of the feeding pipe 7. The telescopic shaft of the hydraulic telescopic rod 181 penetrates the top of the feeding pipe 7 and extends into the inner cavity of the feeding pipe 7. The end of the telescopic shaft of the hydraulic telescopic rod 181 is connected to a pressurizing block 182. The side wall of the pressurizing block 182 is in close contact with the inner wall of the feeding pipe 7. A plurality of discharge pipes 20 are evenly distributed on the bottom surface of the feeding pipe 7.

[0062] Among them, when the device is in use, the SMD conductive silver glue enters the feeding pipe 7 through the heating tank 3, the connecting pipe 4 and the communicating pipe 602. Finally, the hydraulic telescopic rod 181 pushes the pressurizing block 182 to pressurize the SMD conductive silver glue in the feeding pipe 7, and finally it is extruded from the discharge pipe 20.

[0063] Working principle: When the device is in use, first, all the electrical equipment in the device is powered on. The SMD conductive silver glue is injected into the heating tank 3 through the feed pipe 16. The heating tank 3 heats the SMD conductive silver glue therein, and the motor 151 is started to drive the stirring paddle 152 to stir the SMD conductive silver glue in the heating tank 3.

[0064] When the device is working normally, the communicating pipe 602 and the connecting pipe 4 are interconnected with each other, and the flow of the SMD conductive silver glue between the heating tank 3 and the feeding pipe 7 is controlled by the solenoid valve 603.

[0065] After the device is used up, open the solenoid valve 603 to drain the SMD conductive silver paste in the heating tank 3, the connecting pipe 4 and the feeding pipe 7 as much as possible. Then start the electric vacuum pump 501 to pressurize the connecting cylinder 502 with gas. Subsequently, the moving cylinder 503 will move upward. When the moving cylinder 503 moves upward, the connecting plate 504 on the side wall of the moving cylinder 503 will drive the entire conversion assembly 6 and the second limiting ring 12 upward. As the installation pipe 601 and the second limiting ring 12 move upward, when the top surface of the second limiting ring 12 contacts the bottom surface of the rotating ring 901, the scraper 606 will be aligned with the inner cavity of the connecting pipe 4;

[0066] At the same time, the electric vacuum pump 501 continuously pressurizes the connecting cylinder 502. As the air pressure in the connecting cylinder 502 is pressurized, the closing plate 507 will overcome the elastic force of the first spring 506 under the action of the high-pressure gas in the connecting cylinder 502 and the moving cylinder 503, and move upward, thereby connecting the connecting cylinder 502, the moving cylinder 503 and the installation pipe 601 to each other;

[0067] When the scraper 606 is aligned with the connecting pipe 4 at this time, under the action of the third spring 144, the limiting block 148 will push the scraper 606 to move until the limiting block 148 is simultaneously located between the connecting pipe 4, the through hole 604 and the installation frame 141;

[0068] After the limiting block 148 moves a certain distance, the side wall of the sliding groove 145 will contact the sliding plate 142, and drive the connecting frame 143 and the top support plate 146 to move, and insert between the closing plate 507 and the moving cylinder 503;

[0069] Subsequently, the electric vacuum pump 501 continuously inflates and pressurizes. Then the air pressure in the connecting cylinder 502, the moving cylinder 503 and the installation pipe 601 increases, which will push the scraper 606 to move. When the scraper 606 moves, it will scrape the SMD conductive silver paste on the inner wall of the connecting pipe 4 and push the SMD conductive silver paste into the heating tank 3 or the feeding pipe 7, so as to facilitate the cleaning of the SMD conductive silver paste attached to the connecting pipe 4;

[0070] After scraping, the electric vacuum pump 501 discharges the gas in the connecting cylinder 502, the moving cylinder 503 and the installation pipe 601 outward to reduce the air pressure therein. Then the scraper 606 will move in the reverse direction to reset. When the scraper 606 resets, the scraper 606 gradually presses the limiting block 148 into the installation frame 141. The inner wall of the sliding groove 145 on the limiting block 148 will synchronously push the connecting frame 143 to move. When the scraper 606 is completely reset, the connecting frame 143 moves out from between the closing plate 507 and the moving cylinder 503, so that the closing plate 507 will reset under the action of the first spring 506;

[0071] As the electric vacuum pump 501 continuously evacuates the air in the electric vacuum pump 501, and after the second limiting component 14 no longer limits between the installation pipe 601 and the connecting pipe 4, the whole conversion component 6 descends driven by the moving cylinder 503 until the communicating pipe 602 corresponds to the connecting pipe 4.

[0072] Based on the explanations and teachings in the above specification, those skilled in the art to which the present invention pertains can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A conveying device for the production of SMD conductive silver paste, comprising a base (1) and a mounting plate (2) mounted on the base (1), characterized in that, A heating tank (3) is installed on the mounting plate (2), a stirring assembly (15) is installed on the heating tank (3), a second mounting frame (19) is installed on the top surface of the base (1), a feeding pipe (7) is installed on the second mounting frame (19), a pressurizing assembly (18) is cooperatively installed on the feeding pipe (7), a connecting pipe (4) is communicated between the feeding pipe (7) and the heating tank (3), a first limiting assembly (9) is symmetrically and rotatably arranged on the outer wall of the connecting pipe (4), a conversion assembly (6) is slidably installed on the connecting pipe (4), and a pneumatic assembly (5) is installed between the conversion assembly (6) and the base (1). The pneumatic assembly (5) includes an electric vacuum pump (501). The electric vacuum pump (501) is installed on the top surface of the base (1). A connecting cylinder (502) is installed on one side of the top surface of the base (1) close to the electric vacuum pump (501). A moving cylinder (503) is slidably installed in the connecting cylinder (502). The air pipe on the electric vacuum pump (501) is communicated with the connecting cylinder (502). The conversion assembly (6) includes a mounting pipe (601). The mounting pipe (601) is slidably installed in the connecting pipe (4). A connecting disc (504) is installed below the inner cavity of the mounting pipe (601). Through holes (604) are symmetrically formed in the side wall of the mounting pipe (601). Arc-shaped frames (605) are symmetrically installed in the inner walls of the two through holes (604). A second limiting assembly (14) is installed between the four arc-shaped frames (605). A scraping plate (606) is clamped in the through hole (604). A communicating pipe (602) is installed in the inner cavity of the mounting pipe (601). The communicating pipe (602) penetrates through the inner wall of the mounting pipe (601) and communicates with the outside of the mounting pipe (601). An electromagnetic valve (603) is arranged on the communicating pipe (602).

2. The conveying device for SMD conductive silver glue production according to claim 1, characterized in that: A first mounting frame (505) is installed on the top surface of the connecting disc (504). A first spring (506) is installed on the bottom surface of the inner cavity of the first mounting frame (505). One end of the first spring (506) far away from the first mounting frame (505) is installed with a sealing plate (507). The sealing plate (507) is slidably installed in the moving cylinder (503).

3. The conveying device for SMD conductive silver paste production according to claim 1, wherein: The second limiting assembly (14) includes a mounting frame (141). The mounting frame (141) is connected with the arc-shaped frame (605). A third spring (144) is installed on the side wall of the inner cavity of the mounting frame (141). One end of the third spring (144) far away from the inner cavity of the mounting frame (141) is installed with a limiting block (148). The bottom surface of the limiting block (148) is arc-shaped, and the arc degree of the bottom surface of the limiting block (148) is the same as the arc degree of the inner cavity of the connecting pipe (4). The mounting frame (141) is slidably arranged between the two arc-shaped frames (605).

4. The conveying device for the production of SMD conductive silver paste according to claim 3, wherein: The bottom surface of the limit block (148) is provided with a chute (145), and a sliding plate (142) is slidably arranged in the chute (145). The middle part of the bottom surface of the mounting frame (141) is provided with a limit groove (147), and the sliding plate (142) is slidably arranged inside the limit groove (147). A connecting frame (143) is installed below the side wall of the sliding plate (142). The connecting frame (143) is in an "L" shape. A top support plate (146) is installed on the side wall of the connecting frame (143), and the top support plate (146) is in contact with the top surface of the connecting disk (504).

5. The conveying device for the production of SMD conductive silver paste according to claim 1, characterized in that: A partition plate (607) is installed in the middle of the inner cavity of the mounting pipe (601), and the partition plate (607) is located between the communicating pipe (602) and the arc-shaped frame (605).

6. The conveying device for SMD conductive silver glue production according to claim 1, characterized in that: The first limit assembly (9) includes a rotating ring (901). A sliding hole (10) is vertically opened on the side wall of the connecting pipe (4), and the mounting pipe (601) is slidably installed in the inner cavity of the sliding hole (10). Rotating rings (901) are respectively rotatably installed on both sides of the outer wall of the connecting pipe (4) where the sliding hole (10) is located. A fixing cylinder (902) is installed on the side wall of the rotating ring (901). A second spring (904) is installed on the side wall of the inner cavity of the fixing cylinder (902). One end of the second spring (904) far away from the fixing cylinder (902) is installed with a first limit ring (905). A plugging rod (903) is installed in the inner cavity of the first limit ring (905). The plugging rod (903) and the fixing cylinder (902) slide relative to each other. Third limit rings (21) are respectively installed on both sides of the inner cavity of the connecting pipe (4).

7. The conveying device for the production of SMD conductive silver paste according to claim 6, characterized in that: A second limit ring (12) is installed below the outer wall of the mounting pipe (601). Plugging holes (13) are symmetrically opened on the top surface of the second limit ring (12). The fixing cylinder (902) is plugged in the inner cavity of the plugging hole (13), and the bottom surface of the rotating ring (901) is in contact with the top surface of the second limit ring (12).

8. The conveying device for SMD conductive silver paste production according to claim 1, characterized in that: The stirring assembly (15) includes a motor (151). The motor (151) is installed on the top surface of the heating tank (3). The output shaft of the motor (151) penetrates through the top of the heating tank (3) and extends into the inner cavity of the heating tank (3). A stirring paddle (152) is connected to the power output shaft of the motor (151). A feed pipe (16) is installed on the side wall of the heating tank (3), and a water inlet pipe (17) is installed on the top surface of the heating tank (3).

9. The conveying device for SMD conductive silver paste production according to claim 1, characterized in that: The pressurizing assembly (18) includes a hydraulic telescopic rod (181). The hydraulic telescopic rod (181) is installed on the top surface of the feeding pipe (7). The telescopic shaft of the hydraulic telescopic rod (181) penetrates through the top of the feeding pipe (7) and extends into the inner cavity of the feeding pipe (7). The end of the telescopic shaft of the hydraulic telescopic rod (181) is connected with a pressurizing block (182). The side wall of the pressurizing block (182) is in close contact with the inner wall of the feeding pipe (7). A plurality of discharge pipes (20) are evenly distributed on the bottom surface of the feeding pipe (7).

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