Forming and cooling equipment for lead-free tin bar production

Abstract

The utility model relates to the technical field of lead -free tin bar production, and disclose a kind of forming cooling equipment for lead -free tin bar production, including cooling box, the side of cooling box is connected with drain pipe, the both sides of cooling box inner wall are all provided with sliding slot, two threaded rods are rotatably inserted in cooling box, the threaded rod is penetrated in sliding slot, and the one end of threaded rod is fixedly connected with first rotating shaft. This kind of forming cooling equipment for lead -free tin bar production, it is solved that the current cooling equipment is mostly water immersion cooling mode, there is slow cooling speed, uneven cooling and other problems, influence product quality, although part cooling equipment is provided with stirring device, but stirring position is fixed, cannot be flexibly adjusted according to the size and placement position of tin bar, and stirring effect is poor;At the same time, tin bar impurity in cooling water is difficult to recover, cause resource waste, and impurity is easy to block drain pipeline, influence normal operation of equipment.

Description

Technical Field

[0001] This utility model relates to the field of lead-free solder bar production technology, and in particular to a molding and cooling device for lead-free solder bar production. Background Technology

[0002] Lead-free solder bars are an environmentally friendly soldering material widely used in the electronics and electrical appliance industries. In the production process of lead-free solder bars, molten lead-free solder needs to undergo forming and cooling processes to form solder bar products that meet specifications.

[0003] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: Current cooling equipment mostly adopts water immersion cooling, which has problems such as slow cooling speed and uneven cooling, affecting product quality. Although some cooling equipment is equipped with a stirring device, the stirring position is fixed and cannot be flexibly adjusted according to the size and placement of the solder bars, resulting in poor stirring effect. At the same time, it is difficult to recover the solder bar impurities in the cooling water, resulting in resource waste, and the impurities are easy to clog the drainage pipes, affecting the normal operation of the equipment. Utility Model Content

[0004] The technical problem this utility model aims to solve is that existing cooling equipment mostly uses water immersion cooling, which has problems such as slow cooling speed and uneven cooling, affecting product quality. Although some cooling equipment is equipped with a stirring device, the stirring position is fixed and cannot be flexibly adjusted according to the size and placement of the solder bars, resulting in poor stirring effect. At the same time, it is difficult to recover the solder bar impurities in the cooling water, causing resource waste, and the impurities can easily clog the drainage pipes, affecting the normal operation of the equipment. Therefore, we propose a molding cooling equipment for lead-free solder bar production.

[0005] To achieve the above objectives, this application adopts the following technical solution: a molding and cooling device for lead-free solder bar production, comprising a cooling box, a drain pipe connected to one side of the cooling box, and sliding grooves on both sides of the inner wall of the cooling box. Two threaded rods are rotatably inserted into the cooling box, the threaded rods passing through the sliding grooves, a first rotating shaft fixedly connected to one end of the threaded rod, a slider threadedly connected to the arc surface of the threaded rod, the slider slidingly connected to the inner wall of the sliding groove, a mounting bracket fixedly connected to one side of the slider, a motor fixedly connected to the inner wall of the mounting bracket, a rotating chamber fixedly connected to the output end of the motor, a rotating rod slidably connected to the inner wall of the rotating chamber, a circular plate fixedly connected to the end of the rotating rod away from the motor, and three stirring blades fixedly connected to the arc surface of the circular plate.

[0006] Preferably, the arc surface of the rotating rod is provided with a plurality of threaded grooves, and the plurality of threaded grooves are evenly distributed in a linear array on the arc surface of the rotating rod. A screw is threadedly inserted into the rotating chamber, and the screw is slidably connected to the inner wall of the threaded groove. One end of the screw is fixedly connected to a second rotating shaft.

[0007] Preferably, the arc surfaces of both the first and second rotating shafts are provided with a plurality of strip grooves.

[0008] Preferably, the surface of the stirring blade is provided with a plurality of circular holes, and the inner wall of the cooling box is bonded with an anti-corrosion layer.

[0009] Preferably, a ball bearing is fixedly connected to one side of the slider, and the ball bearing is slidably connected to the inner wall of the groove.

[0010] Preferably, a filter screen is slidably connected to the inner wall of the drain pipe, two positioning blocks are fixedly connected to the inner wall of the drain pipe, two limiting rods are slidably inserted into the drain pipe, a round block is fixedly connected to one end of the limiting rod, a spring is sleeved on the arc surface of the limiting rod, and the two ends of the spring are fixedly connected to the round block and the drain pipe, respectively.

[0011] Preferably, one end of the filter screen is fixedly connected to a long rod, and the front end of the limiting rod is arc-shaped.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, the screw rod and the slider work together to drive the mounting frame, which is equipped with a motor, a rotating chamber and other components, to move along the slide groove. This adjusts the vertical position of the stirring blade in the cooling box. Then, the motor is started to drive the stirring blade to rotate, allowing the water in the cooling box to flow fully and ensuring that all parts of the solder bar can come into efficient contact with the cold water, thereby achieving rapid and uniform cooling and improving the cooling effect and production quality of lead-free solder bars.

[0014] In this invention, the filter screen inside the drain pipe can accurately intercept lead-free solder bar impurities left in the cooling water, preventing impurities from being discharged with the water flow and causing resource waste. This allows the intercepted lead-free solder bar impurities to be recycled and reused, effectively reducing raw material losses and production costs. At the same time, the positioning block provides stable support and positioning for the filter screen. Combined with the elastic limiting structure composed of the limiting rod, the round block, and the spring, the filter screen can be quickly disassembled and assembled. This makes it convenient for operators to regularly clean the lead-free solder bar impurities intercepted on the filter screen, ensuring smooth drainage, preventing impurities from clogging the pipes and affecting the operation of the cooling system, and further improving the convenience of recycling lead-free solder bar impurities. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the slide groove in this utility model;

[0018] Figure 3 This is a schematic diagram of the threaded rod in this utility model;

[0019] Figure 4 In this utility model Figure 3 Enlarged view of point A;

[0020] Figure 5 This is a schematic diagram of the drainage pipe in this utility model;

[0021] Figure 6 In this utility model Figure 5 An unfolded diagram.

[0022] Legend: 1. Cooling box; 2. Drain pipe; 3. Slide groove; 4. Threaded rod; 5. First rotating shaft; 6. Slider; 7. Mounting bracket; 8. Motor; 9. Rotating chamber; 10. Rotating rod; 11. Threaded groove; 12. Screw; 13. Second rotating shaft; 14. Long rod; 15. Strip groove; 16. Circular plate; 17. Stirring blade; 18. Circular hole; 19. Filter screen; 20. Positioning block; 21. Limiting rod; 22. Circular block; 23. Spring; 24. Ball bearing. Detailed Implementation

[0023] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0024] Reference Figures 1-6As shown, this utility model provides a technical solution: a molding and cooling device for lead-free solder bar production, including a cooling box 1, a drain pipe 2 connected to one side of the cooling box 1, and sliding grooves 3 on both sides of the inner wall of the cooling box 1. Two threaded rods 4 are rotatably inserted into the cooling box 1, the threaded rods 4 passing through the sliding grooves 3, a first rotating shaft 5 fixedly connected to one end of the threaded rod 4, a slider 6 threadedly connected to the arc surface of the threaded rod 4, the slider 6 slidingly connected to the inner wall of the sliding groove 3, a mounting bracket 7 fixedly connected to one side of the slider 6, a motor 8 fixedly connected to the inner wall of the mounting bracket 7, a rotating chamber 9 fixedly connected to the output end of the motor 8, a rotating rod 10 slidably connected to the inner wall of the rotating chamber 9, a circular plate 16 fixedly connected to the end of the rotating rod 10 away from the motor 8, and three stirring blades 17 fixedly connected to the arc surface of the circular plate 16. Through the cooperation of the threaded rod 4 and the slider 6, the mounting frame 7, which is equipped with components such as the motor 8 and the rotating chamber 9, can be driven to move along the slide groove 3, thereby adjusting the vertical position of the stirring blade 17 in the cooling box 1. Then, the motor 8 is started to drive the stirring blade 17 to rotate, so that the water in the cooling box 1 can flow fully, allowing all parts of the solder bar to come into efficient contact with the cold water, thereby cooling quickly and evenly, improving the cooling effect and production quality of the lead-free solder bar. The arc surface of the rotating rod 10 is provided with several threaded grooves 11, which are evenly distributed in a linear array on the arc surface of the rotating rod 10. The rotating chamber 9 is threaded with a screw 12, which is slidably connected to the inner wall of the threaded groove 11. One end of the screw 12 is fixedly connected to a second rotating shaft 13. By setting several linear array of threaded grooves 11 on the arc surface of the rotating rod 10, and cooperating with the screw 12 on the rotating chamber 9 and the second rotating shaft 13, the length of the rotating rod 10 extending out of the rotating chamber 9 can be conveniently adjusted, thereby precisely controlling the lateral position of the stirring blade 17. When the screw 12 is screwed into the threaded grooves 11 at different positions, the adjustment length of the rotating rod 10 can be firmly locked, realizing flexible adjustment of the stirring range to adapt to different cooling requirements. Several strip grooves 15 are opened on the arc surface of the first rotating shaft 5 and the second rotating shaft 13. Several grooves 15 are provided on the arc surfaces of the first rotating shaft 5 and the second rotating shaft 13 to increase the friction when the rotating shaft contacts the hand. This makes it easier for the operator to apply force and prevent slippage when rotating the first rotating shaft 5 to adjust the lateral position of the stirring blade 17 and rotating the second rotating shaft 13 to adjust the rotating rod 10 (and thus adjust the longitudinal position of the stirring blade 17). This allows for convenient and stable adjustment of the stirring structure position. Several round holes 18 are provided on the surface of the stirring blade 17, and the inner wall of the cooling box 1 is bonded with an anti-corrosion layer.The circular holes 18 on the surface of the stirring blade 17 can reduce water flow resistance during stirring, allowing water to flow more smoothly. At the same time, they can make the water flow form more eddies, enhance the disturbance effect of the water flow, improve heat exchange efficiency, and accelerate the cooling of the solder bar. The anti-corrosion layer on the inner wall of the cooling box 1 can effectively resist the corrosion of the box by cooling water, extend the service life of the equipment, and ensure that the equipment can cool the lead-free solder bar stably for a long time. A ball bearing 24 is fixedly connected to one side of the slider 6, and the ball bearing 24 is slidably connected to the inner wall of the slide groove 3. The ball bearing 24 is slidably connected to the inner wall of the groove 3, which converts the sliding friction between the slider 6 and the groove 3 into rolling friction, significantly reducing the friction between the two. The inner wall of the drain pipe 2 is slidably connected to a filter screen 19. The inner wall of the drain pipe 2 is fixedly connected to two positioning blocks 20. Two limiting rods 21 are slidably inserted into the drain pipe 2. One end of the limiting rod 21 is fixedly connected to a round block 22. The arc surface of the limiting rod 21 is fitted with a spring 23. The two ends of the spring 23 are fixedly connected to the round block 22 and the drain pipe 2, respectively. The filter screen 19 inside the drain pipe 2 can accurately intercept lead-free solder bar impurities left in the cooling water, preventing impurities from being discharged with the water flow and causing resource waste. This allows the intercepted lead-free solder bar impurities to be recycled and reused, effectively reducing raw material losses and production costs. At the same time, the positioning block 20 provides stable support and positioning for the filter screen 19. Together with the elastic limiting structure composed of the limiting rod 21, the round block 22 and the spring 23, the filter screen 19 can be quickly disassembled and assembled. This makes it convenient for operators to regularly clean the lead-free solder bar impurities intercepted on the filter screen. This not only ensures smooth drainage and prevents impurities from clogging the pipes and affecting the operation of the cooling system, but also further improves the convenience of recycling lead-free solder bar impurities. One end of the filter screen 19 is fixedly connected to a long rod 14, and the front end of the limiting rod 21 is arc-shaped. The long rod 14 fixed at one end of the filter screen 19 inside the drain pipe 2 provides a convenient gripping and force application point for the operator, making it easy to remove or install the filter screen 19 from the drain pipe 2. The front end of the limiting rod 21 is designed with an arc shape, which allows the filter screen 19 to smoothly squeeze the limiting rod 21 and push it to retract when installing the filter screen 19 through the guiding effect of the arc surface.

[0025] Working principle: When using, first put the formed high-temperature lead-free solder bar into the cooling box 1, and inject an appropriate amount of cooling water into the box. Based on the specifications and dimensions of the tin bar and its placement within the box, the operator can adjust the stirring structure to the optimal working position using the following steps: Hold the first rotating shaft 5 with the strip groove 15 and rotate it, causing the threaded rod 4 to rotate synchronously. Since the slider 6 is threadedly connected to the threaded rod 4 and limited by the slide groove 3, the slider 6 will slide stably along the slide groove 3 (the ball bearing 24 on one side of the slider 6 converts sliding friction into rolling friction, making the adjustment smoother), thereby driving the mounting frame 7 and the stirring, rotating chamber 9, rotating rod 10 and stirring blade 17 to move up and down as a whole, achieving precise adjustment of the longitudinal position of the stirring blade 17; At the same time, rotate the second rotating shaft 13 with the strip groove 15 to make the screw 12 screw out of the thread groove 11 on the rotating rod 10. At this time, the rotating rod 10 can be pushed or pulled to adjust its length extending out of the rotating chamber 9 to change the lateral position of the stirring blade 17. After the position is determined, rotate the second rotating shaft 13 in the opposite direction to make the screw 12 screw into the corresponding thread groove 11, using the threaded engagement to securely lock the rotating rod 10, ensuring that the stirring blade 17 works stably in the set position. After the position adjustment is completed, motor 8 is started. The output of motor 8 drives the rotating chamber 9, rotating rod 10, and circular plate 16 to rotate, and the three stirring blades 17 fixed on the circular plate 16 rotate together. During rotation, the several circular holes 18 on the surface of the stirring blades 17 reduce the contact area with the water flow, reducing water flow resistance and making stirring easier; on the other hand, they cause the water flow to form multiple vortices when passing through the circular holes 18, enhancing the disturbance effect on the cooling water, allowing the cooling water in different areas of the chamber to mix quickly, avoiding the formation of local high-temperature water areas around the solder bars, ensuring that all parts of the solder bars can make efficient contact with the low-temperature cooling water, achieving rapid and uniform cooling, and significantly improving cooling efficiency and solder bar forming quality. The inner wall of the cooling chamber 1 is bonded with an anti-corrosion layer, which can effectively isolate the chamber from the corrosion of the cooling water and corrosive substances that may be generated during the solder bar cooling process, extending the overall service life of the equipment.

[0026] During the cooling process, lead-free tin strips, impurities, etc., mixed in the cooling water will enter the drain pipe 2 during discharge or circulation. At this time, the filter screen 19 inside the drain pipe 2 will intercept these impurities to prevent them from being discharged with the water and wasting resources. When it is necessary to clean the impurities on the filter screen, the operator can pull the round block 22 outward, which will cause the limiting rod 21 to compress the spring 23 and disengage from the filter screen 19. Then, by holding the long rod 14, the filter screen 19 can be pulled out of the drain pipe 2. After cleaning, it can be reinserted into the drain pipe 2. The edge of the filter screen 19 contacts the positioning block 20 to achieve initial positioning. During the insertion process, the edge of the filter screen 19 presses against the arc-shaped surface at the front end of the limiting rod 21, forcing the limiting rod 21 to automatically retract and compress the spring 23. When the filter screen 19 is fully in place, the limiting rod 21 resets under the elastic restoring force of the spring 23, and re-clamps the filter screen 19 to achieve fixation, ensuring that the filter screen 19 works stably.

[0027] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A molding and cooling device for producing lead-free solder bars, characterized in that, The cooling box (1) includes a cooling box body (1), one side of which is connected to a drain pipe (2). The inner walls of the cooling box body (1) are provided with grooves (3) on both sides. Two threaded rods (4) are rotatably inserted into the cooling box body (1). The threaded rods (4) pass through the grooves (3). One end of the threaded rods (4) is fixedly connected to a first rotating shaft (5). The arc surface of the threaded rods (4) is threadedly connected to a slider (6). The slider (6) is slidably connected to the inner wall of the groove (3). One side of the slider (6) is fixedly connected to a mounting bracket (7). The inner wall of the mounting bracket (7) is fixedly connected to a motor (8). The output end of the motor (8) is fixedly connected to a rotating chamber (9). The inner wall of the rotating chamber (9) is slidably connected to a rotating rod (10). The end of the rotating rod (10) away from the motor (8) is fixedly connected to a circular plate (16). The arc surface of the circular plate (16) is fixedly connected to three stirring blades (17).

2. The molding and cooling equipment for producing lead-free solder bars according to claim 1, characterized in that: The rotating rod (10) has several threaded grooves (11) on its arc surface. The several threaded grooves (11) are evenly distributed in a linear array on the arc surface of the rotating rod (10). A screw (12) is threadedly inserted into the rotating chamber (9). The screw (12) is slidably connected to the inner wall of the threaded groove (11). One end of the screw (12) is fixedly connected to a second rotating shaft (13).

3. The forming and cooling equipment for producing lead-free solder bars according to claim 2, characterized in that: The first rotating shaft (5) and the second rotating shaft (13) both have several strip grooves (15) on their arc surfaces.

4. The molding and cooling equipment for producing lead-free solder bars according to claim 1, characterized in that: The surface of the stirring blade (17) is provided with several round holes (18), and the inner wall of the cooling box (1) is bonded with an anti-corrosion layer.

5. The forming and cooling equipment for producing lead-free solder bars according to claim 1, characterized in that: A ball bearing (24) is fixedly connected to one side of the slider (6), and the ball bearing (24) is slidably connected to the inner wall of the groove (3).

6. The molding and cooling equipment for producing lead-free solder bars according to claim 1, characterized in that: A filter screen (19) is slidably connected to the inner wall of the drain pipe (2). Two positioning blocks (20) are fixedly connected to the inner wall of the drain pipe (2). Two limiting rods (21) are slidably inserted into the drain pipe (2). A round block (22) is fixedly connected to one end of the limiting rod (21). A spring (23) is sleeved on the arc surface of the limiting rod (21). The two ends of the spring (23) are fixedly connected to the round block (22) and the drain pipe (2) respectively.

7. The molding and cooling equipment for producing lead-free solder bars according to claim 6, characterized in that: One end of the filter screen (19) is fixedly connected to a long rod (14), and the front end of the limiting rod (21) is arc-shaped.

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