Tin powder filtering and screening device

Abstract

The utility model relates to the technical field of soldering paste production, in particular to a tin powder filtering and screening device which comprises a screening and filtering box, a mounting plate and a vibration assembly. Supporting columns are arranged at the lower end of the screening and filtering box, a feeding opening is formed in the upper end of the screening and filtering box, a material guiding plate is arranged on one side of the screening and filtering box, a discharging pipe is arranged at the lower end of the screening and filtering box, a vibration assembly is arranged on one side of the screening and filtering box, and a mounting plate is arranged on one side of the vibration assembly; according to the device, a first motor is started, the first motor drives a worm to rotate, the worm drives a worm gear to rotate, the worm gear drives a first rotating rod to rotate, the first rotating rod drives a gear to rotate, the gear drives a toothed plate to move, the toothed plate drives a connecting plate to move, and the connecting plate drives a second screening plate to move; the discharging granularity is controlled by adjusting the distance between the upper first screening plate and the lower second screening plate, so that different production requirements can be met, the production efficiency and the product quality are improved, and the overall production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of solder paste production technology, and in particular to a solder powder filtration and sieving device. Background Technology

[0002] Solder paste is a paste-like material used for electronic soldering. It is mainly composed of solder powder and flux and is widely used in SMT (Surface Mount Technology) processes. Solder paste is a gray paste, mainly composed of alloy solder powder and flux. It is an indispensable material in the field of electronic assembly. It is widely used to solder electronic components onto circuit boards, especially playing a key role in SMT processes.

[0003] Existing tin powder filtration and sieving devices mainly use a vibrating motor to drive the screen plate for vibration operation. During operation, the tin powder raw material is poured onto the screen plate, and the continuous vibration of the screen plate is used to achieve sieving and filtration of the tin powder raw material, removing impurities from the tin powder raw material. This can effectively improve the purity of the solder paste raw material, thereby ensuring the performance stability of the solder paste in subsequent production.

[0004] However, in actual production, different products have different requirements for the particle size of tin powder, so it is necessary to frequently change the sieves of different mesh sizes. This process is not only cumbersome and increases labor and time costs, but may also lead to prolonged equipment downtime due to improper operation when changing the sieves, affecting the overall production efficiency. Therefore, it has certain limitations in dealing with diversified production needs. Utility Model Content

[0005] To address the technical problem that existing tin powder filtration and sieving devices require different mesh sizes of sieves to be used depending on the particle size requirements of tin powder for different products, this utility model provides a tin powder filtration and sieving device.

[0006] The technical solution of this utility model is as follows: a tin powder filtration and screening device, including a screening and filtering box, a mounting plate, and a vibration assembly; a support column is provided at the lower end of the screening and filtering box, a feed inlet is provided at the upper end of the screening and filtering box, a guide plate is provided on one side of the screening and filtering box, a discharge pipe is provided at the lower end of the screening and filtering box, a vibration assembly is provided on one side of the screening and filtering box, a mounting plate is provided on one side of the vibration assembly, a first screening plate for screening and filtering impurities is provided on one side of the mounting plate, a protective shell is provided on one side of the mounting plate, an L-shaped plate is provided on one side of the screening and filtering box, a first motor is provided on one side of the screening and filtering box, a worm gear is provided at the output end of the first motor, the first motor is used to drive the worm gear to rotate, a worm wheel is provided on one side of the worm gear, the worm wheel meshes with the worm gear, a first rotating rod is provided inside the worm wheel, a gear is provided outside the first rotating rod, a toothed plate is provided on one side of the gear, the toothed plate meshes with the gear, a connecting plate is provided on one side of the toothed plate, and a second screening plate for screening and filtering impurities is provided on one side of the connecting plate.

[0007] Preferably, the L-shaped plate has a slot, and the first rotating rod is rotatably connected to the inside of the L-shaped plate through the slot.

[0008] Preferably, the mounting plate has a second groove, and the connecting plate is slidably connected to the inside of the mounting plate through the second groove.

[0009] Preferably, the vibration assembly includes a support plate, a support plate is provided inside the screening and filtering box, an mounting plate is provided at the upper end of the support plate, a guide rod is provided inside the screening and filtering box, a spring is provided between the support plate and the screening and filtering box, a second motor is provided on one side of the screening and filtering box, a second rotating rod is provided at the output end of the second motor, the second motor is used to drive the second rotating rod to rotate, and a cam is provided on the outer side of the second rotating rod.

[0010] Preferably, a groove three is provided on the inner side of the screening and filtering box, and the support plate is slidably connected to the inner side of the screening and filtering box through the groove three.

[0011] Preferably, the support plate has a slot four, and the support plate is slidably connected to the outside of the guide rod through the slot four.

[0012] Preferably, multiple sets of guide rods and springs are provided, and the guide rod and spring array is arranged inside the screening and filtering box.

[0013] The beneficial effects of this utility model are as follows: Compared with traditional tin powder filtering and screening devices, which require different mesh sizes of tin powder due to the different particle size requirements of different products, this device starts a first motor, which drives a worm gear to rotate, which in turn drives a worm wheel to rotate, which in turn drives a first rotating rod to rotate, which in turn drives a gear to rotate, which in turn drives a toothed plate to move, which in turn drives a connecting plate to move, and the connecting plate to move a second screening plate. By adjusting the distance between the upper first screening plate and the lower second screening plate, the output particle size can be controlled, thereby adapting to different production needs, improving production efficiency and product quality, and enhancing overall production efficiency. Attached Figure Description

[0014] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0015] Figure 2 The diagram shown is a cross-sectional view of the screening and filtering box of this utility model.

[0016] Figure 3 The diagram shown is a three-dimensional structural schematic of the support plate, the first screening plate, the second screening plate, and the first motor assembly of this utility model.

[0017] Figure 4The diagram shown is a cross-sectional view of the assembly structure of the mounting plate, L-shaped plate, first motor, worm gear, worm wheel, first rotating rod, gear, toothed plate, connecting plate and second screening plate of this utility model.

[0018] Figure 5 The diagram shown is a cross-sectional view of the vibration component of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Screening and filtering box; 2. Support column; 3. Feed inlet; 4. Guide plate; 5. Discharge pipe; 601. Mounting plate; 602. First screening plate; 603. Protective shell; 604. L-shaped plate; 605. First motor; 606. Worm gear; 607. Worm wheel; 608. First rotating rod; 609. Gear; 610. Tooth plate; 611. Connecting plate; 612. Second screening plate; 701. Support plate; 702. Guide rod; 703. Spring; 704. Second motor; 705. Second rotating rod; 706. Cam. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figure 1 - Figure 5This utility model provides an embodiment of a tin powder filtering and screening device, including a screening and filtering box 1, a mounting plate 601, and a vibration assembly; a support column 2 is provided at the lower end of the screening and filtering box 1, a feed inlet 3 is provided at the upper end of the screening and filtering box 1, a guide plate 4 is provided on one side of the screening and filtering box 1, a discharge pipe 5 is provided at the lower end of the screening and filtering box 1, a vibration assembly is provided on one side of the screening and filtering box 1, a mounting plate 601 is provided on one side of the vibration assembly, a first screening plate 602 for screening and filtering impurities is provided on one side of the mounting plate 601, and a protective device is provided on one side of the mounting plate 601. The protective shell 603 has an L-shaped plate 604 on one side of the screening and filtering box 1. A first motor 605 is also located on one side of the screening and filtering box 1. A worm gear 606 is located at the output end of the first motor 605, which drives the worm gear 606 to rotate. A worm wheel 607 is located on one side of the worm gear 606, meshing with it. A first rotating rod 608 is located inside the worm wheel 607, and a gear 609 is located outside the first rotating rod 608. A toothed plate 610 is located on one side of the gear 609, meshing with it. A connecting plate 611 is provided on one side of the L-shaped plate 604, and a second screening plate 612 for screening and filtering impurities is provided on the other side of the connecting plate 611. A slot 1 is provided on the L-shaped plate 604, and a first rotating rod 608 is rotatably connected to the inside of the L-shaped plate 604 through the slot 1. The slot 1 on the L-shaped plate 604 provides a limiting effect when the first rotating rod 608 rotates inside the slot. A second slot 2 is provided on the mounting plate 601, and the connecting plate 611 is slidably connected to the inside of the mounting plate 601 through the second slot. The slot 2 on the mounting plate 601 provides a limiting effect when the connecting plate 611 is rotatably connected to the inside of the mounting plate 601. 1. When rotating inside the trough, it serves as a limiting device. By starting the first motor 605, the first motor 605 drives the worm 606 to rotate, the worm 606 drives the worm wheel 607 to rotate, the worm wheel 607 drives the first rotating rod 608 to rotate, the first rotating rod 608 drives the gear 609 to rotate, the gear 609 drives the toothed plate 610 to move, the toothed plate 610 drives the connecting plate 611 to move, and the connecting plate 611 drives the second screening plate 612 to move. The discharge particle size is controlled by adjusting the distance between the upper first screening plate 602 and the lower second screening plate 612.

[0022] Please see Figure 5In this embodiment, the vibration assembly includes a support plate 701. The support plate 701 is disposed inside the screening and filtering box 1, and a mounting plate 601 is disposed on the upper end of the support plate 701. A guide rod 702 is disposed inside the screening and filtering box 1. A spring 703 is disposed between the support plate 701 and the screening and filtering box 1. A second motor 704 is disposed on one side of the screening and filtering box 1. A second rotating rod 705 is disposed at the output end of the second motor 704. The second motor 704 drives the second rotating rod 705 to rotate. A cam 706 is disposed on the outer side of the second rotating rod 705. A groove three is opened inside the screening and filtering box 1, through which the support plate 701 slides. Connected to the inside of the screening and filtering box 1, the support plate 701 has a groove three on its inside, which limits its movement when sliding inside the groove. The support plate 701 has a groove four, which slidably connects it to the outside of the guide rod 702. The groove four on the support plate 701 also limits its movement when sliding outside the guide rod 702. Multiple sets of guide rods 702 and springs 703 are arranged in an array inside the screening and filtering box 1, which makes the vibration effect more stable.

[0023] During operation, tin powder is poured into the screening and filtering box 1 through the feed inlet 3, falling onto the first screening plate 602. The second motor 704 is started, driving the second rotating rod 705 to rotate. The second rotating rod 705 drives the cam 706 to rotate, causing the support plate 701 to slide up and down along the surface of the cam 706. The guide rod 702 limits the support plate 701, and the spring 703 resets the support plate 701, thereby causing the first screening plate 602 to vibrate. Then, the tin powder falls through the first screening plate 602 and is discharged from the discharge pipe 5. Impurities are discharged through the guide rod 702. The material plate 4 is discharged. When screening and filtering tin powder of different particle sizes, the first motor 605 is started. The first motor 605 drives the worm gear 606 to rotate, the worm gear 606 drives the worm wheel 607 to rotate, the worm wheel 607 drives the first rotating rod 608 to rotate, the first rotating rod 608 drives the gear 609 to rotate, the gear 609 drives the toothed plate 610 to move, the toothed plate 610 drives the connecting plate 611 to move, and the connecting plate 611 drives the second screening plate 612 to move. The discharge particle size is controlled by adjusting the distance between the upper first screening plate 602 and the lower second screening plate 612.

[0024] Through the above steps, by starting the first motor 605, the first motor 605 drives the worm gear 606 to rotate, the worm gear 606 drives the worm wheel 607 to rotate, the worm wheel 607 drives the first rotating rod 608 to rotate, the first rotating rod 608 drives the gear 609 to rotate, the gear 609 drives the toothed plate 610 to move, the toothed plate 610 drives the connecting plate 611 to move, and the connecting plate 611 drives the second screening plate 612 to move. The discharge particle size is controlled by adjusting the distance between the upper first screening plate 602 and the lower second screening plate 612.

Claims

1. A tin powder filtration and screening device, comprising a screening and filtering box (1); characterized in that: It also includes a mounting plate (601) and a vibration assembly; a support column (2) is provided at the lower end of the screening and filtering box (1), a feed inlet (3) is provided at the upper end of the screening and filtering box (1), a guide plate (4) is provided on one side of the screening and filtering box (1), a discharge pipe (5) is provided at the lower end of the screening and filtering box (1), a vibration assembly is provided on one side of the screening and filtering box (1), a mounting plate (601) is provided on one side of the vibration assembly, a first screening plate (602) for screening and filtering impurities is provided on one side of the mounting plate (601), a protective shell (603) is provided on one side of the mounting plate (601), an L-shaped plate (604) is provided on one side of the screening and filtering box (1), and a first motor is provided on one side of the screening and filtering box (1). (605) A worm gear (606) is provided at the output end of the first motor (605). The first motor (605) is used to drive the worm gear (606) to rotate. A worm wheel (607) is provided on one side of the worm gear (606). The worm wheel (607) meshes with the worm gear (606). A first rotating rod (608) is provided on the inner side of the worm wheel (607). A gear (609) is provided on the outer side of the first rotating rod (608). A toothed plate (610) is provided on one side of the gear (609). The toothed plate (610) meshes with the gear (609). A connecting plate (611) is provided on one side of the toothed plate (610). A second screening plate (612) for screening and filtering impurities is provided on one side of the connecting plate (611).

2. The tin powder filtering and sieving device according to claim 1, characterized in that: A slot is provided on the L-shaped plate (604), and the first rotating rod (608) is rotatably connected to the inside of the L-shaped plate (604) through the slot.

3. The tin powder filtering and sieving device according to claim 1, characterized in that: The mounting plate (601) has a second groove, and the connecting plate (611) is slidably connected to the inside of the mounting plate (601) through the second groove.

4. The tin powder filtering and sieving device according to claim 1, characterized in that: The vibration assembly includes a support plate (701), a support plate (701) is provided inside the screening and filtering box (1), an mounting plate (601) is provided at the upper end of the support plate (701), a guide rod (702) is provided inside the screening and filtering box (1), a spring (703) is provided between the support plate (701) and the screening and filtering box (1), a second motor (704) is provided on one side of the screening and filtering box (1), a second rotating rod (705) is provided at the output end of the second motor (704), the second motor (704) is used to drive the second rotating rod (705) to rotate, and a cam (706) is provided on the outer side of the second rotating rod (705).

5. The tin powder filtering and sieving device according to claim 4, characterized in that: The screening and filtering box (1) has a groove three on its inner side, and the support plate (701) is slidably connected to the inner side of the screening and filtering box (1) through the groove three.

6. The tin powder filtering and sieving device according to claim 4, characterized in that: The support plate (701) has a slot four, and the support plate (701) is slidably connected to the outside of the guide rod (702) through the slot four.

7. The tin powder filtering and sieving device according to claim 4, characterized in that: Multiple sets of guide rods (702) and springs (703) are provided, and the array of guide rods (702) and springs (703) is arranged inside the screening and filtering box (1).

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