Forming device for lead-free solder balls

Abstract

This utility model relates to the field of lead-free solder ball technology and discloses a forming device for lead-free solder balls, including a support rod. A motor is fixedly mounted on the outer wall of the support rod. A rotating shaft is fixedly mounted on the power output shaft of the motor. A melting furnace is fixedly mounted on the outer wall of the rotating shaft. A heat insulation plate is fixedly mounted on the outer wall of the melting furnace. An electromagnetic coil is provided on the outer wall of the heat insulation plate. A connecting component is provided on the outer wall of the electromagnetic coil. When the lower mold is placed, the lower mold is pushed by the operator, and the lower mold moves on the inner wall of the sliding groove. When the lower mold is placed on the top of the base plate, it applies pressure to the clamping block. Under pressure, the clamping block drives the rotating column to rotate on the inner wall of the placement groove. When the clamping block rotates, it clamps the outer wall of the lower mold. When the lower mold is removed, the elastic potential energy of the arc spring allows the clamping block to quickly return to its original position.

Description

Technical Field

[0001] This utility model relates to the field of lead-free solder ball technology, specifically to a forming device for lead-free solder balls. Background Technology

[0002] Solder balls are widely used in tinplate, fluxing agents, organic synthesis, chemical production, alloy manufacturing, and the assembly of multiple integrated circuits in the electronics industry. They are also used as reagents for determining arsenic and phosphate, reducing agents, and in tin-plated products.

[0003] Existing equipment is used to form lead-free solder balls, but it is not convenient to stir and fuse the molten liquid. This results in uneven mixing when placing materials, which reduces the working efficiency of the equipment. At the same time, it is not convenient to fix the mold, which causes shaking when the mold is replaced and the operation is resumed. Therefore, a forming device for lead-free solder balls has been introduced. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a molding device for lead-free solder balls, which has the advantages of good mixing effect and easy mold fixing, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a forming device for lead-free solder balls, including a support rod, a motor fixedly mounted on the outer wall of the support rod, a rotating shaft fixedly mounted on the power output shaft of the motor, a melting furnace fixedly mounted on the outer wall of the rotating shaft, a heat insulation plate fixedly mounted on the outer wall of the melting furnace, an electromagnetic coil provided on the outer wall of the heat insulation plate, a connecting component provided on the outer wall of the electromagnetic coil, a forming device body provided on the outer wall of the support rod, a liquid inlet pipe fixedly mounted on the inner wall of the forming device body, an upper mold fixedly mounted on the bottom of the liquid inlet pipe, an electric push rod fixedly mounted on the bottom of the forming device body, a base plate fixedly mounted on the pushing end of the electric push rod, a sliding groove provided on the top of the base plate, a lower mold slidably connected to the inner wall of the sliding groove, a placement groove provided on the top of the base plate, a rotating column rotatably connected to the inner wall of the placement groove, a clamping block fixedly mounted on the outer wall of the rotating column, and an arc-shaped spring fixedly mounted on the outer wall of the clamping block.

[0006] As a preferred technical solution of this utility model: a fixing block is fixedly mounted on the outer wall of the smelting furnace, a second motor is fixedly mounted on the outer wall of the fixing block, one end of a connecting rod is fixedly mounted on the power output shaft of the second motor, a cover plate is fixedly mounted on the other end of the connecting rod, a controller is fixedly mounted on the outer wall of the forming device body, one end of a hinge is fixedly mounted on the outer wall of the forming device body, and an observation window is rotatably connected to the other end of the hinge.

[0007] As a preferred technical solution of this utility model: the connecting component includes a placement block, the inner wall of the placement block is respectively provided with a limiting groove and a threaded groove, the inner wall of the limiting groove is provided with a locking block, and the inner wall of the threaded groove is threadedly connected with a threaded rod.

[0008] As a preferred technical solution of this utility model: the placement block is fixedly assembled with the heat insulation plate, and the positioning block is fixedly assembled with the electromagnetic coil.

[0009] As a preferred technical solution of this utility model: the threaded groove is formed on the inner wall of the locking block, and the arc-shaped spring is fixedly assembled with the base plate.

[0010] As a preferred technical solution of this utility model: the cover plate is adapted to the top slot of the smelting furnace, and the electromagnetic coil is attached to the outer wall of the heat insulation plate.

[0011] As a preferred technical solution of this utility model: the first motor, the melting furnace, the second motor, the electric push rod and the molding device body are all electrically connected to the controller, and the liquid inlet pipe is connected to the inner wall of the upper mold.

[0012] As a preferred technical solution of this utility model: there are two sets of connecting components, and the two sets of connecting components are located on top of the heat insulation plate and the electromagnetic coil, respectively.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. In the forming device for lead-free solder balls, when the lower mold is placed, the operator pushes the lower mold to move it along the inner wall of the sliding groove. When the lower mold is placed on top of the base plate, pressure is applied to the clamping block. Under pressure, the clamping block drives the rotating column to rotate along the inner wall of the placement groove. When the clamping block rotates, it clamps the outer wall of the lower mold. When the lower mold is removed, the elastic potential energy of the arc spring allows the clamping block to quickly return to its original position.

[0014] 2. The forming device for the lead-free solder ball uses a heat insulation plate to isolate the heat inside the melting furnace, preventing damage to the electromagnetic coil due to excessively high equipment temperature. An alternating current is then passed through the electromagnetic coil to generate an alternating magnetic field. Eddy currents are induced in the conductor within the magnetic field, and the interaction between the eddy currents and the magnetic field generates an electromagnetic force, propelling the liquid solder to flow in a specific direction for uniform mixing. When fixing the electromagnetic coil, a worker places a locking block on the inner wall of the limiting groove. As the locking block is positioned within the limiting groove, the worker drives a threaded rod to connect with the inner wall of the threaded groove, thus fixing the electromagnetic coil and fusing the liquid inside the melting furnace. Attached Figure Description

[0015] Figure 1This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the other side of the structure of this utility model; Figure 3 This is a schematic diagram of the cover plate structure of this utility model; Figure 4 This is a schematic diagram of the electromagnetic coil structure of this utility model; Figure 5 This is a schematic diagram of the upper mold structure of this utility model; Figure 6 This is a schematic diagram of the arc-shaped spring structure of this utility model; Figure 7 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0016] In the diagram: 1. Support rod; 2. Motor 1; 3. Rotating shaft; 4. Melting furnace; 5. Heat insulation plate; 6. Electromagnetic coil; 7. Connecting assembly; 8. Molding device body; 9. Controller; 10. Liquid inlet pipe; 11. Observation window; 12. Hinge; 13. Electric push rod; 14. Fixing block; 15. Motor 2; 16. Connecting rod; 17. Cover plate; 18. Upper mold; 19. Base plate; 20. Lower mold; 21. Sliding groove; 22. Placement groove; 23. Rotating column; 24. Clamping block; 25. Arc spring; 701. Placement block; 702. Limiting groove; 703. Threaded groove; 704. Locking block; 705. Threaded rod. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 - Figure 7The lead-free solder ball forming device includes a support rod 1, a motor 2 fixedly mounted on the outer wall of the support rod 1, a rotating shaft 3 fixedly mounted on the power output shaft of the motor 2, a melting furnace 4 fixedly mounted on the outer wall of the rotating shaft 3, a heat insulation plate 5 fixedly mounted on the outer wall of the melting furnace 4, an electromagnetic coil 6 provided on the outer wall of the heat insulation plate 5, a connecting assembly 7 provided on the outer wall of the electromagnetic coil 6, a forming device body 8 provided on the outer wall of the support rod 1, and a liquid inlet pipe 10 fixedly mounted on the inner wall of the forming device body 8. The bottom is fixedly equipped with an upper mold 18, the bottom of the forming device body 8 is fixedly equipped with an electric push rod 13, the pushing end of the electric push rod 13 is fixedly equipped with a base plate 19, the top of the base plate 19 is provided with a sliding groove 21, the inner wall of the sliding groove 21 is slidably connected with a lower mold 20, the top of the base plate 19 is provided with a placement groove 22, the inner wall of the placement groove 22 is rotatably connected with a rotating column 23, the outer wall of the rotating column 23 is fixedly equipped with a clamping block 24, and the outer wall of the clamping block 24 is fixedly equipped with an arc spring 25. In the above structure, when the lower mold 20 is placed, the operator pushes the component to move it on the inner wall of the sliding groove 21. When the lower mold 20 is placed on the top of the base plate 19, pressure is applied to the clamping block 24. After being pressed, the clamping block 24 will drive the rotating column 23 to rotate on the inner wall of the placement groove 22. During the rotation of the clamping block 24, it will clamp the outer wall of the lower mold 20. When the lower mold 20 is removed, the clamping block 24 can be quickly restored by the elastic potential energy of the arc spring 25.

[0019] In a preferred embodiment: a fixing block 14 is fixedly mounted on the outer wall of the smelting furnace 4, a motor 15 is fixedly mounted on the outer wall of the fixing block 14, one end of a connecting rod 16 is fixedly mounted on the power output shaft of the motor 15, and a cover plate 17 is fixedly mounted on the other end of the connecting rod 16; a controller 9 is fixedly mounted on the outer wall of the molding device body 8, one end of a hinge 12 is fixedly mounted on the outer wall of the molding device body 8, and an observation window 11 is rotatably connected to the other end of the hinge 12. In the above structure, the heat inside the melting furnace 4 is isolated by the heat insulation plate 5 to prevent the equipment temperature from being too high and damaging the electromagnetic coil 6. Then, an alternating magnetic field is generated by passing an alternating current into the electromagnetic coil 6. The conductor is induced to generate eddy currents in the magnetic field. The eddy currents interact with the magnetic field to generate electromagnetic force, which pushes the liquid to flow in a specific direction to achieve uniform mixing.

[0020] In a preferred embodiment: the connecting component 7 includes a placement block 701, the inner wall of the placement block 701 is respectively provided with a limiting groove 702 and a threaded groove 703, the inner wall of the limiting groove 702 is provided with a locking block 704, and the inner wall of the threaded groove 703 is threadedly connected with a threaded rod 705. In the above structure, during the process of fixing the electromagnetic coil 6, the worker places the locking block 704 on the inner wall of the limiting groove 702. When the locking block 704 is in the inner wall of the limiting groove 702, the worker makes the threaded rod 705 connect with the inner wall of the threaded groove 703, thereby fixing the electromagnetic coil 6.

[0021] In a preferred embodiment: the placement block 701 is fixedly assembled with the heat insulation plate 5, and the locking block 704 is fixedly assembled with the electromagnetic coil 6. In the above structure, the heat insulation plate 5 and the electromagnetic coil 6 are used to limit the position of the connecting component 7, making the connecting component 7 more stable when placed.

[0022] In a preferred embodiment: the threaded groove 703 is formed on the inner wall of the locking block 704, and the arc spring 25 is fixedly assembled with the base plate 19; In the above structure, the locking block 704 is limited by the threaded groove 703 and the threaded rod 705, so that the locking block 704 will not be offset when placed. The arc spring 25 is limited by the base plate 19 and the clamping block 24, so that the arc spring 25 will not fall off when releasing the elastic potential energy.

[0023] In a preferred embodiment: the cover plate 17 is adapted to the top slot of the melting furnace 4, and the electromagnetic coil 6 is attached to the outer wall of the heat insulation plate 5. In the above structure, the opening of the smelting furnace 4 is closed by the cover plate 17, and the electromagnetic coil 6 is limited by the heat insulation plate 5.

[0024] In a preferred embodiment: motor 1 2, melting furnace 4, motor 2 15, electric push rod 13 and molding device body 8 are all electrically connected to controller 9, and liquid inlet pipe 10 is connected to the inner wall of upper mold 18. In the above structure, the controller 9 sends a signal to the equipment to operate after receiving the signal, and the liquid is delivered to the inner wall of the upper mold 18 through the liquid inlet pipe 10.

[0025] In a preferred embodiment: there are two sets of connecting components 7, and the two sets of connecting components 7 are located on top of the heat insulation plate 5 and the electromagnetic coil 6, respectively; In the above structure, the electromagnetic coil 6 is connected and fixed by two sets of connecting components 7, so that the electromagnetic coil 6 will not fall off when placed.

[0026] Working principle: When placing the lower mold 20, the operator pushes the lower mold 20, causing it to move along the inner wall of the sliding groove 21. When the lower mold 20 is placed on top of the bottom plate 19, it applies pressure to the clamping block 24. Under pressure, the clamping block 24 drives the rotating column 23 to rotate along the inner wall of the placement groove 22. As the clamping block 24 rotates, it clamps the outer wall of the lower mold 20. When removing the lower mold 20, the clamping block 24 quickly returns to its original position thanks to the elastic potential energy of the arc spring 25. The heat insulation plate 5 isolates the heat inside the melting furnace 4, preventing equipment damage. Excessive temperature can damage the electromagnetic coil 6. When an alternating current is passed through the electromagnetic coil 6, an alternating magnetic field is generated. Eddy currents are induced in the conductor in the magnetic field. The interaction between the eddy currents and the magnetic field generates an electromagnetic force, which pushes the liquid tin to flow in a specific direction to achieve uniform mixing. When fixing the electromagnetic coil 6, the worker places the locking block 704 on the inner wall of the limiting groove 702. When the locking block 704 is in the inner wall of the limiting groove 702, the worker makes the threaded rod 705 connect with the inner wall of the threaded groove 703, thereby completing the fixing of the electromagnetic coil 6.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A forming device for lead-free solder balls, comprising a support rod (1), characterized in that: A motor (2) is fixedly mounted on the outer wall of the support rod (1). A rotating shaft (3) is fixedly mounted on the power output shaft of the motor (2). A smelting furnace (4) is fixedly mounted on the outer wall of the rotating shaft (3). A heat insulation plate (5) is fixedly mounted on the outer wall of the smelting furnace (4). An electromagnetic coil (6) is provided on the outer wall of the heat insulation plate (5). A connecting component (7) is provided on the outer wall of the electromagnetic coil (6). A forming device body (8) is provided on the outer wall of the support rod (1). A liquid inlet pipe (10) is fixedly mounted on the inner wall of the forming device body (8). An upper part is fixedly mounted on the bottom of the liquid inlet pipe (10). The mold (18) has an electric push rod (13) fixedly mounted at the bottom of the molding device body (8). The push end of the electric push rod (13) is fixedly mounted with a base plate (19). The top of the base plate (19) is provided with a sliding groove (21). The inner wall of the sliding groove (21) is slidably connected to a lower mold (20). The top of the base plate (19) is provided with a placement groove (22). The inner wall of the placement groove (22) is rotatably connected to a rotating column (23). The outer wall of the rotating column (23) is fixedly mounted with a clamping block (24). The outer wall of the clamping block (24) is fixedly mounted with an arc spring (25).

2. The forming apparatus for lead-free solder balls according to claim 1, characterized in that: The outer wall of the smelting furnace (4) is fixedly fitted with a fixing block (14), the outer wall of the fixing block (14) is fixedly fitted with a motor (15), the power output shaft of the motor (15) is fixedly fitted with one end of a connecting rod (16), the other end of the connecting rod (16) is fixedly fitted with a cover plate (17), the outer wall of the molding device body (8) is fixedly fitted with a controller (9), the outer wall of the molding device body (8) is fixedly fitted with one end of a hinge (12), the other end of the hinge (12) is rotatably connected to an observation window (11).

3. The forming apparatus for lead-free solder balls according to claim 2, characterized in that: The connecting component (7) includes a placement block (701), the inner wall of the placement block (701) is provided with a limiting groove (702) and a threaded groove (703), the inner wall of the limiting groove (702) is provided with a locking block (704), and the inner wall of the threaded groove (703) is threadedly connected with a threaded rod (705).

4. The forming apparatus for lead-free solder balls according to claim 3, characterized in that: The placement block (701) is fixedly assembled with the heat insulation plate (5), and the locking block (704) is fixedly assembled with the electromagnetic coil (6).

5. The forming apparatus for lead-free solder balls according to claim 3, characterized in that: The threaded groove (703) is formed on the inner wall of the locking block (704), and the arc spring (25) is fixedly assembled with the base plate (19).

6. The forming apparatus for lead-free solder balls according to claim 2, characterized in that: The cover plate (17) is adapted to the top slot of the smelting furnace (4), and the electromagnetic coil (6) is attached to the outer wall of the heat insulation plate (5).

7. The forming apparatus for lead-free solder balls according to claim 5, characterized in that: The motor (2), smelting furnace (4), motor (15), electric push rod (13) and molding device body (8) are all electrically connected to the controller (9), and the liquid inlet pipe (10) is connected to the inner wall of the upper mold (18).

8. The forming apparatus for lead-free solder balls according to claim 5, characterized in that: There are two sets of the connecting components (7), and the two sets of connecting components (7) are located on top of the heat insulation plate (5) and the electromagnetic coil (6), respectively.

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