A multifunctional integrated solder paste mixer and metering device

Abstract

This utility model discloses a multifunctional integrated solder paste mixer and metering adder, relating to the field of solder paste technology. It includes a housing, a cover plate hinged to the top of the housing, a partition plate fixedly connected inside the housing, a material cylinder fixedly connected to the top of the partition plate, a sealing plate hinged to the top of the material cylinder, a heater fixedly connected to the outside of the material cylinder, a heating wire fixedly connected to the output end of the heater, one end of the heating wire fixedly connected to the inside of the side wall of the material cylinder, a mixing unit for mixing solder paste installed at the bottom of the housing, a cleaning unit for cleaning the material cylinder installed inside the material cylinder, and a fixing rod fixedly connected to the bottom of the cover plate. A stepper motor drives a second pulley, which in turn drives a first mixing rod to rotate via a belt and pulley, and a connecting rod drives the second mixing rod to rotate together. Simultaneously, the engagement of a gear ring and a driven gear causes the second mixing rod to rotate, stirring the solder paste near the inner wall of the material cylinder, thereby shortening the solder paste mixing time.

Description

Technical Field

[0001] This utility model relates to the field of solder paste technology, and in particular to a multifunctional integrated solder paste mixer and metering adder. Background Technology

[0002] Solder paste, also known as soldering paste, is a paste-like system formed by mixing ultra-fine spherical solder alloy powder, flux, and other additives. It is an important auxiliary material in the surface assembly of electronic products. Before using solder paste, it needs to be heated to a certain temperature and then stirred. Therefore, a multi-functional integrated solder paste mixer and metering dispenser are required.

[0003] The multi-functional integrated solder paste mixer and metering dispenser is a device that integrates solder paste mixing and metering functions into one unit. It is mainly used in the SMT (Surface Mount Technology) production process to improve the convenience and accuracy of solder paste use. It mainly consists of a support structure, a solder paste storage cylinder, a mixing structure, and a metering dispensing structure. The mixing structure is usually fixed in the center of the solder paste storage cylinder.

[0004] When mixing solder paste, it is usually done by adding the solder paste into the solder paste reservoir and then stirring it through a stirring mechanism. However, since the stirring mechanism is usually fixed in the center of the solder paste reservoir, the stirring blades / rods can only rotate on a fixed circular trajectory. Solder paste has high viscosity and very poor fluidity, so the solder paste near the side wall of the solder paste reservoir needs to be stirred evenly for a long time. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multifunctional integrated solder paste mixer and metering adder, comprising a housing, a cover plate hinged to the top of the housing, a partition plate fixedly connected inside the housing, a material cylinder fixedly connected to the top of the partition plate, a sealing plate hinged to the top of the material cylinder, a heater fixedly connected to the outside of the material cylinder, a heating wire fixedly connected to the output end of the heater, one end of the heating wire fixedly connected to the inside of the side wall of the material cylinder, a mixing unit for mixing solder paste installed at the bottom of the housing, a cleaning unit for cleaning the material cylinder installed inside the material cylinder, a fixing rod fixedly connected to the bottom of the cover plate, and a rubber block fixedly connected to the bottom of the fixing rod.

[0006] Preferably, the stirring unit includes a stepper motor, which is fixedly connected to one side of the bottom wall of the outer casing. A second pulley is fixedly connected to the drive end of the stepper motor. A belt is sleeved on the outside of the second pulley. A first pulley is provided inside one end of the belt. A first stirring rod is fixedly connected inside the first pulling rod. One end of the first stirring rod passes through a partition and is fixedly connected to a baffle. A fixing ring is provided on the outside of the baffle. The fixing ring is fixedly connected to the bottom end of the inner wall of the material cylinder. The stirring unit achieves the effect of improving stirring efficiency.

[0007] Preferably, the stirring unit further includes a connecting rod, which is fixedly connected to the outer side of the stirring rod one end near the pulley one. A driven gear is rotatably connected to the top end of the connecting rod one end, and a stirring rod two is fixedly connected to the top end of the driven gear. One end of the stirring rod two passes through a baffle, and a gear ring is meshed with one side of the driven gear. The gear ring is fixedly connected to the bottom end of the inner wall of the barrel. The stirring unit achieves the effect of rapid stirring of the solder paste inside the barrel.

[0008] Preferably, the cleaning unit includes a fixed base and a scraper. The fixed base is fixedly connected to the outer side of the top of the baffle. A plurality of evenly distributed springs are fixedly connected to the inner side wall of the fixed base. One end of each of the springs is fixedly connected to one side of the scraper. The scraper is slidably connected inside the fixed base. The cleaning unit is used to clean the solder paste adhering to the inner side wall of the barrel.

[0009] Preferably, a pipe is connected to one side of the material cylinder, a metering cylinder is connected to one end of the pipe, a delivery pump is connected to the outer side of the middle of the pipe, and the metering cylinder is fixedly connected to the top of the partition plate away from the material cylinder. The delivery pump and the pipe work together to deliver solder paste into the metering cylinder.

[0010] Preferably, the side of the metering cylinder away from the pipeline is connected to a discharge pipe, one end of which penetrates the inner wall of the outer shell and is connected to a discharge nozzle, and the middle outer side of the discharge pipe is connected to a material pump. The cooperation between the discharge pipe and the discharge nozzle achieves the effect of conveying solder paste out of the metering cylinder.

[0011] Preferably, a cylinder is fixedly connected to the top of the metering cylinder, a rubber plate is fixedly connected to the lower output end of the cylinder, and a displacement sensor is fixedly connected to the inner top wall of the metering cylinder. The effect of metering control of solder paste is achieved through the cooperation of the displacement sensor, the cylinder, and the rubber plate.

[0012] Preferably, each of the four corners of the bottom of the outer casing is fixedly connected with a foot pad, which increases the friction between the outer casing and the placement surface.

[0013] In summary, this utility model has the following beneficial effects: This invention uses a stepper motor to drive pulley two, which in turn drives stirring rod one to rotate via a belt and pulley one. A connecting rod and baffle drive driven gear and stirring rod two to rotate together around the center line of the barrel. With the help of a gear ring, stirring rod two rotates relative to stirring rod one, thereby stirring the solder paste near the inner wall of the barrel and shortening the stirring time.

[0014] In this invention, when the baffle rotates, it drives the fixed seat to rotate together with the scraper. The scraper is pushed close to the inner wall of the barrel by the spring and is in close contact with the inner wall of the barrel, thereby cleaning the solder paste adhering to the inner wall of the barrel. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the integrated solder paste mixer and metering adder of this utility model; Figure 2 This is a cross-sectional view of the outer shell of a multifunctional integrated solder paste mixer and metering adder according to this utility model; Figure 3 This is a schematic diagram of the barrel structure of a multifunctional integrated solder paste mixer and metering adder according to this utility model; Figure 4 This is a schematic diagram of the stirring rod of a multifunctional integrated solder paste mixer and metering adder according to this utility model; Figure 5 This is a schematic diagram of the stepper motor structure of a multifunctional integrated solder paste mixer and metering adder according to this utility model; Figure 6 This is a schematic diagram of the fixing base structure of a multifunctional integrated solder paste mixer and metering adder according to this utility model; Figure 7 This is a cross-sectional view of the barrel of a multifunctional integrated solder paste mixer and metering adder according to this utility model; Figure 8 This is a schematic diagram of the metering cylinder structure of a multifunctional integrated solder paste mixer and metering adder according to this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Outer shell; 2. Cover plate; 3. Stirring unit; 301. Stirring rod one; 302. Stirring rod two; 303. Baffle; 304. Fixing ring; 305. Gear ring; 306. Pulley one; 307. Stepper motor; 308. Driven gear; 309. Belt; 310. Pulley two; 311. Connecting rod; 4. Cleaning unit; 401. Spring; 402. Scraper; 403. Fixing seat; 5. Foot pad; 6. Heating wire; 7. Pipe; 8. Conveying pump; 9. Baffle plate; 10. Material pump; 11. Metering cylinder; 12. Cylinder; 13. Fixing rod; 14. Rubber block; 15. Sealing plate; 16. Heater; 17. Material cylinder; 18. Discharge nozzle; 19. Discharge pipe; 20. Displacement sensor; 21. Rubber plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0018] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, this utility model provides a technical solution: a multifunctional integrated solder paste mixer and metering adder, including a shell 1, a cover plate 2 hinged to the top of the shell 1, a partition plate 9 fixedly connected inside the shell 1, a material cylinder 17 fixedly connected to the top of the partition plate 9, a sealing plate 15 hinged to the top of the material cylinder 17, a heater 16 fixedly connected to the outside of the material cylinder 17, a heating wire 6 fixedly connected to the output end of the heater 16, and one end of the heating wire 6 fixedly connected to the inside of the side wall of the material cylinder 17.

[0019] After opening the cover plate 2 and the sealing plate 15, place the solder paste that needs to be stirred into the barrel 17. Then, first reset the sealing plate 15 to cover the barrel 17, and then reset the cover plate 2 to cover the outer shell 1. Then, the solder paste inside the barrel 17 is heated by the cooperation of the heater 16 and the heating wire 6 to prevent the solder paste from solidifying and clumping due to the temperature drop.

[0020] A fixing rod 13 is fixedly connected to the bottom end of the cover plate 2, and a rubber block 14 is fixedly connected to the bottom end of the fixing rod 13.

[0021] After the cover plate 2 is closed, the fixing rod 13 will push the rubber block 14 to squeeze the sealing plate 15, thereby fixing the sealing plate 15 and the material cylinder 17.

[0022] A stirring unit 3 for stirring solder paste is installed at the bottom of the outer casing 1. The stirring unit 3 includes a stepper motor 307, which is fixedly connected to one side of the inner bottom wall of the outer casing 1. A pulley 310 is fixedly connected to the drive end of the stepper motor 307. A belt 309 is sleeved on the outside of the pulley 310. A pulley 306 is installed inside one end of the belt 309. A stirring rod 301 is fixedly connected inside the pulley 306. One end of the stirring rod 301 passes through the partition 9 and the inner bottom wall of the cylinder 17 and is fixedly connected to a baffle 303. A fixing ring 304 is provided on the side, and the fixing ring 304 is fixedly connected to the bottom end of the inner wall of the material cylinder 17. The stirring unit 3 also includes a connecting rod 311, which is fixedly connected to the outer side of the end of the stirring rod 301 near the pulley 306. A driven gear 308 is rotatably connected to the top end of one end of the connecting rod 311. A stirring rod 302 is fixedly connected to the top end of the driven gear 308. One end of the stirring rod 302 passes through the baffle 303. A toothed ring 305 is meshed on one side of the driven gear 308 and is fixedly connected to the bottom end of the inner wall of the material cylinder 17.

[0023] Once the solder paste reaches a certain temperature, the stepper motor 307 can be activated to drive pulley 310 to rotate. The belt 309 drives pulley 306 to rotate stirring rod 301. Simultaneously, the connecting rod 311 and baffle 303 drive driven gear 308 and stirring rod 302 to rotate around the center line of the barrel 17. With the cooperation of driven gear 308 and gear ring 305, stirring rod 302 is driven to rotate around its own center line, forming a relative rotation with stirring rod 301. This stirs the solder paste near the side wall of the barrel 17, shortening the stirring time. Furthermore, the relative rotation of stirring rod 302 and stirring rod 301 allows the solder paste inside the barrel 17 to circulate more fully, thus improving the stirring efficiency.

[0024] The outer side of the baffle 303 is in close contact with the inner sidewall of the retaining ring 304, thereby blocking the solder paste inside the barrel 17 and preventing the solder paste from entering between the driven gear 308 and the gear ring 305.

[0025] The cleaning unit 4 for cleaning the material cylinder 17 is installed inside the material cylinder 17. The cleaning unit 4 includes a fixed seat 403 and a scraper 402. The fixed seat 403 is fixedly connected to the outer side of the top of the baffle 303. A plurality of evenly distributed springs 401 are fixedly connected to the inner side wall of the fixed seat 403. One end of each of the plurality of springs 401 is fixedly connected to one side of the scraper 402. The scraper 402 is slidably connected inside the fixed seat 403.

[0026] When the stirring rod 301 drives the baffle 303 to rotate, the baffle 303 will drive the fixed seat 403 to rotate, and the fixed seat 403 will push the scraper 402 to rotate together, so that the scraper 402 can scrape and clean the solder paste attached to the inner wall of the barrel 17. At the same time, the spring 401 pushes the scraper 402 close to the inner wall of the barrel 17, so that the scraper 402 is in close contact with the inner wall of the barrel 17, thereby improving the cleaning effect of the scraper 402.

[0027] One side of the material cylinder 17 is connected to a pipe 7, one end of the pipe 7 is connected to a metering cylinder 11, and the middle outer side of the pipe 7 is connected to a conveying pump 8. The metering cylinder 11 is fixedly connected to the top of the partition plate 9 on the side away from the material cylinder 17. The conveying pump 8 is a servo gear pump.

[0028] Once the solder paste inside the barrel 17 has been stirred, the delivery pump 8 can be started to generate suction in the pipe 7 to draw out the solder paste from the barrel 17, and then transport it to the metering cylinder 11 through the pipe 7.

[0029] A cylinder 12 is fixedly connected to the top of the metering cylinder 11, and a rubber plate 21 is fixedly connected to the lower output end of the cylinder 12. A displacement sensor 20 is fixedly connected to the inner top wall of the metering cylinder 11. The displacement sensor 20 is model MHM-0200.

[0030] As the pipe 7 delivers solder paste into the metering cylinder 11, the cylinder 12 will activate the rubber plate 21 to move inside the metering cylinder 11, and the displacement sensor 20 will detect the moving distance of the rubber plate 21 to determine the amount of solder paste entering the metering cylinder 11.

[0031] The metering cylinder 11 is connected to a discharge pipe 19 on the side away from the pipe 7. One end of the discharge pipe 19 passes through the inner wall of the outer shell 1 and is connected to a discharge nozzle 18. The middle outer side of the discharge pipe 19 is connected to a material pump 10. The discharge nozzle 18 is a threaded adjustment nozzle.

[0032] When the solder paste inside the metering cylinder 11 reaches a certain amount, the delivery pump 8 and cylinder 12 can be stopped, the diameter of the discharge nozzle 18 can be adjusted, and then it can be connected to the dispensing equipment. Then, the feed pump 10 is started to discharge the solder paste inside the metering cylinder 11 through the discharge pipe 19, and the discharge nozzle 18 is used to transport it into the dispensing equipment. The diameter of the discharge nozzle 18 can be adjusted to adapt to different dispensing equipment.

[0033] Foot pads 5 are fixedly connected to the four corners of the bottom of the outer casing 1. The foot pads 5 increase the friction between the outer casing 1 and the placement surface, thereby preventing the outer casing 1 from shifting due to vibration generated by the electrical components inside the outer casing 1 during operation.

[0034] Working principle: like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a multifunctional integrated solder paste mixer and metering device is used. In operation, after opening the cover plate 2 and sealing plate 15, solder paste is placed into the cylinder 17. Then, the cover plate 2 and sealing plate 15 are reset to close the outer shell 1 and the cylinder 17. The solder paste is heated using a heater 16 and heating wire 6. A stepper motor 307 is then started to drive pulley 310 to rotate, and a belt 309 drives pulley 306 to rotate stirring rod 301. Simultaneously, a connecting rod 311 and baffle 303 drive driven gear 308 and stirring rod 302 to rotate around the center line of the cylinder 17. Furthermore, the driven gear 308, in conjunction with the gear ring 305, drives stirring rod 302 to rotate... The centerline of the stirring rod 302 rotates around its axis, forming a relative rotation with the stirring rod 301 to stir the solder paste inside the barrel 17. At the same time, the baffle 303 drives the scraper 402 to move and scrape off the solder paste adhering to the inner wall of the barrel 17. Then, the solder paste inside the barrel 17 is transported to the metering cylinder 11 through the delivery pump 8 and the pipeline 7. The movement of the rubber plate 21 is controlled by the cylinder 12, and the movement distance of the rubber plate 21 is detected by the displacement sensor 20 to determine the amount of solder paste entering the metering cylinder 11, thereby realizing the metered addition of solder paste into the dispensing equipment. Finally, the solder paste inside the metering cylinder 11 is transported into the dispensing equipment through the cooperation of the material pump 10, the discharge pipe 19 and the discharge nozzle 18.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A multifunctional integrated solder paste mixer and metering dispenser, comprising a housing (1), characterized in that: The top of the outer shell (1) is hinged with a cover plate (2), the inside of the outer shell (1) is fixedly connected with a partition plate (9), the top of the partition plate (9) is fixedly connected with a material cylinder (17), the top of the material cylinder (17) is hinged with a sealing plate (15), the outside of the material cylinder (17) is fixedly connected with a heater (16), the output end of the heater (16) is fixedly connected with a heating wire (6), one end of the heating wire (6) is fixedly connected to the inside of the side wall of the material cylinder (17), the bottom of the outer shell (1) is equipped with a stirring unit (3) for stirring solder paste, the inside of the material cylinder (17) is equipped with a cleaning unit (4) for cleaning the material cylinder (17), the bottom of the cover plate (2) is fixedly connected with a fixing rod (13), the bottom of the fixing rod (13) is fixedly connected with a rubber block (14).

2. The multifunctional integrated solder paste mixer and metering device according to claim 1, characterized in that: The stirring unit (3) includes a stepper motor (307), which is fixedly connected to one side of the inner bottom wall of the outer shell (1). The driving end of the stepper motor (307) is fixedly connected to a pulley (310). A belt (309) is sleeved on the outside of the pulley (310). A pulley (306) is provided inside one end of the belt (309). A stirring rod (301) is fixedly connected inside the pulley (306). A baffle (303) is fixedly connected to one end of the stirring rod (301) through the partition (9) and the inner bottom wall of the material cylinder (17). A fixing ring (304) is provided on the outside of the baffle (303). The fixing ring (304) is fixedly connected to the bottom end of the inner side wall of the material cylinder (17).

3. The multifunctional integrated solder paste mixer and metering device according to claim 2, characterized in that: The stirring unit (3) also includes a connecting rod (311), which is fixedly connected to the outer side of the stirring rod (301) near the pulley (306). A driven gear (308) is rotatably connected to the top end of the connecting rod (311), and a stirring rod (302) is fixedly connected to the top end of the driven gear (308). One end of the stirring rod (302) passes through the baffle (303), and a gear ring (305) is meshed on one side of the driven gear (308). The gear ring (305) is fixedly connected to the bottom end of the inner wall of the material cylinder (17).

4. The multifunctional integrated solder paste mixer and metering device according to claim 2, characterized in that: The cleaning unit (4) includes a fixed seat (403) and a scraper (402). The fixed seat (403) is fixedly connected to the outer side of the top of the baffle (303). A plurality of evenly distributed springs (401) are fixedly connected to the inner side wall of the fixed seat (403). One end of each of the springs (401) is fixedly connected to one side of the scraper (402). The scraper (402) is slidably connected inside the fixed seat (403).

5. The multifunctional integrated solder paste mixer and metering device according to claim 1, characterized in that: The material cylinder (17) is connected to a pipe (7) on one side, and a metering cylinder (11) is connected to one end of the pipe (7). A delivery pump (8) is connected to the outer side of the middle part of the pipe (7). The metering cylinder (11) is fixedly connected to the top of the partition plate (9) on the side away from the material cylinder (17).

6. The multifunctional integrated solder paste mixer and metering device according to claim 5, characterized in that: The metering cylinder (11) is connected to a discharge pipe (19) on the side away from the pipe (7). One end of the discharge pipe (19) passes through the inner wall of the outer shell (1) and is connected to a discharge nozzle (18). The middle outer side of the discharge pipe (19) is connected to a material pump (10).

7. The multifunctional integrated solder paste mixer and metering device according to claim 5, characterized in that: A cylinder (12) is fixedly connected to the top of the metering cylinder (11), a rubber plate (21) is fixedly connected to the lower output end of the cylinder (12), and a displacement sensor (20) is fixedly connected to the inner top wall of the metering cylinder (11).

8. The multifunctional integrated solder paste mixer and metering device according to claim 1, characterized in that: The bottom corners of the outer shell (1) are all fixedly connected with foot pads (5).

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