High-safety tin melting furnace

Abstract

The utility model relates to the field of metallurgical smelting furnaces, and discloses a high-safety tin smelting furnace which comprises a furnace body, a driving mechanism and a stirring mechanism, a feeding port is formed in the upper end of the furnace body, a furnace cavity for heating tin is formed in the furnace body, the stirring mechanism is located above the feeding port, one end of the stirring mechanism is inserted into the furnace body, and the other end of the stirring mechanism is inserted into the furnace body. One end of the stirring mechanism is rotationally connected with the stirring mechanism, the other end of the stirring mechanism is rotationally connected with the driving mechanism, the protection mechanism comprises a sliding assembly, a first sealing cover and a second sealing cover, the first sealing cover is fixedly connected with the circumferential side wall of the feeding port, a connecting piece is installed on the lower edge of the second sealing cover, and a sliding way is installed on the circumferential side wall of the feeding port. One end of the sliding assembly is fixedly connected with the connecting piece, the other end of the sliding assembly is slidably connected with the sliding way, the feeding port is shielded through the second sealing cover, molten tin in the furnace body is prevented from splashing out, the hidden danger of safety accidents caused by splashing of the molten tin is reduced, and the safety of the tin melting furnace in the stirring process is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of metallurgical furnaces, in particular to a high-safety tin melting furnace. BACKGROUND

[0002] The tin melting furnace is a device for melting and casting tin, widely used in electronic, mechanical, automotive and other industries. It is mainly composed of a furnace body, a heating system, a control system and the like, and can accurately control the melting temperature and time to ensure the quality and performance of the tin material. In the factory, the tin ingot is melted by the tin melting furnace to produce solder such as tin bar, tin ball and tin wire.

[0003] However, when the tin material is poured into the melting furnace, some low-boiling impurities may be contained in the tin material. These impurities will vaporize before the tin material itself during the heating process, forming bubbles. The volume of the bubbles continues to expand, and when the bubbles expand to a certain amount, the breaking of the bubbles will cause the tin liquid to splash, which will splash onto the hands or other parts of the operator's body, causing burns, and thus some protective measures need to be taken to prevent the tin liquid from splashing. CONTENT OF THE INVENTION

[0004] In order to prevent the tin liquid from splashing and burning the operator, a high-safety tin melting furnace is provided.

[0005] The above application purpose of the present application is realized by the following technical scheme:

[0006] A high-safety tin melting furnace, comprising a furnace body, a driving mechanism and a stirring mechanism, the upper end of the furnace body is provided with a feeding port, the furnace body is provided with a furnace cavity for heating the tin material, the stirring mechanism is located above the feeding port, one end of the stirring mechanism is inserted into the furnace body, the other end of the stirring mechanism is rotatably connected with the driving mechanism, and the high-safety tin melting furnace further comprises a protection mechanism, the protection mechanism comprises a sliding assembly, a first cover and a second cover, the first cover is fixedly connected with the circumferential side wall of the feeding port, the lower edge of the second cover is provided with a connecting plate, a slide is installed on the circumferential side wall of the feeding port, one end of the sliding assembly is fixedly connected with the connecting plate, and the other end of the sliding assembly is slidably connected with the slide.

[0007] By adopting the technical scheme, after the tin material is poured into the furnace, some low-boiling impurities in the tin material may be contained, which will be gasified before the tin material itself in the heating process, forming bubbles, the volume of the bubbles expands continuously, when the bubbles expand to a certain amount, the breaking of the bubbles will cause the tin liquid to splash, the second cover is slid along the slide to the upper side of the feeding port, so that the feeding port is completely blocked by the second cover, preventing the tin liquid from splashing out of the feeding port during stirring, after the stirring mechanism is finished stirring, the second cover is slid along the slide to the upper side of the feeding port, so that the feeding port is opened, and the tin liquid is subjected to subsequent operation, the feeding port is blocked by the second cover, avoiding the tin liquid in the furnace body from splashing out, reducing the hidden danger of safety accidents caused by the splashing of the tin liquid in the stirring process of the tin melting furnace, and improving the safety of the tin melting furnace in the stirring process.

[0008] Optionally, the sliding assembly comprises a pulley and a connecting rod, the pulley is in sliding connection with the slide in the slide, one end of the connecting rod is in rotary connection with the pulley, and the other end of the connecting rod is in fixed connection with the connecting piece.

[0009] By adopting the technical scheme, when the second cover is pushed to slide in the circumferential direction of the slide, the sliding connection of the pulley and the slide can drive the second cover to slide, improve the pushing force of the second cover during sliding, increase the efficiency of the second cover sliding to the feeding port, and reduce the hidden danger of the second cover not covering the feeding port after the tin liquid in the furnace body forms bubbles.

[0010] Optionally, the upper edge and the lower edge of the slide towards the connecting piece side are both provided with raised protrusions.

[0011] By adopting the technical scheme, when the second cover is pushed to slide along the slide, the pulley drives the second cover to slide in the circumferential direction of the slide, and when a force perpendicular to the circumferential direction of the slide is applied to the second cover, the upper and lower protrusions of the slide limit the pulley, preventing the pulley from coming out of the slide, and reducing the safety hidden danger of the pulley sliding out of the slide.

[0012] Optionally, the slide is provided with limiting blocks, and the number of the limiting blocks is two, and the two limiting blocks are both located below the first cover.

[0013] By adopting the technical scheme, when the second cover completely covers the feeding port, the pulley abuts against one limiting block, blocking the pulley from further sliding on the slide, avoiding that the feeding port cannot be completely covered after the pulley continues to slide, and increasing the efficiency of pushing the second cover to cover the feeding port; when the second cover completely opens the feeding port, the pulley abuts against the other limiting block, blocking the pulley from further sliding on the slide, avoiding that the second cover is too far away from the feeding port after the pulley continues to slide, which is not convenient for subsequent pushing of the second cover, and increasing the efficiency of pushing the second cover to cover the feeding port.

[0014] Optionally, both the first and second caps are raised upwards.

[0015] By adopting the above technical solution, when the molten tin floats up, the molten tin will continuously rise and fall and impact the cap due to the stirring action of the stirring rod. The first and second caps are both raised upwards, which can play a guiding role, so that the splashed molten tin can quickly fall from the top edge into the furnace after contacting the cap.

[0016] Optionally, the protective mechanism also includes a furnace hood and a baffle door. An operating opening is provided on the outer peripheral side wall of the furnace hood, and a slide rail is installed on the outer peripheral side wall of the top of the furnace hood. The baffle door covers the outside of the operating opening, and a rolling assembly is provided between the baffle door and the furnace hood. The rolling assembly is slidably connected along the slide rail, and the rolling assembly drives the baffle door to slide back and forth along the slide rail to block or open the operating opening.

[0017] By adopting the above technical solution, after the solder is poured into the inlet, the baffle is pushed along the slide rail to completely block the operating port, preventing the molten solder from splashing out of the inlet; after the stirring mechanism has finished stirring, the baffle is moved along the slide rail to open the observation port, so that the molten solder is less likely to fly out of the furnace during the stirring process, thereby reducing the waste rate of molten solder and improving the safety of the solder melting furnace.

[0018] Optionally, the stirring mechanism includes a stirring rod, a first stirring block, and a second stirring block. The lower end face of the first stirring block is in contact with the bottom surface of the furnace cavity. The first stirring block and the second stirring block are relatively parallel, and the first stirring block is located below the second stirring block. The two sides of the first stirring block bend and extend upward toward the axis of the stirring rod.

[0019] By adopting the above technical solution, the lower end face of the first stirring block is in contact with the bottom surface of the furnace cavity, which can fully stir the molten liquid on the bottom surface of the furnace. The curved extension of the two sides of the first stirring block can more effectively push the molten tin upward, making the heat distribution more uniform and thus improving the efficiency of the furnace. At the same time, the curved surface design of the two sides helps to form an inward force during the stirring process, making it less likely for the molten tin to splash outward.

[0020] Optionally, the upper surface of the second stirring block is flat, and both sides of the second stirring block bend and extend downward toward the axis of the stirring rod.

[0021] By adopting the above technical solution, the upper surface of the second stirring block is flat, and the two sides of the second stirring block are curved and extended, which can more effectively push the molten tin to flow downward, making it less likely for the molten tin to splash outward, thereby improving the efficiency of the furnace.

[0022] In summary, this application has at least the following beneficial effects:

[0023] 1. After pouring the solder into the solder melting furnace, push the second cover to slide to the inlet, so that the inlet is completely covered by the second cover. This prevents the solder from splashing out of the furnace from the inlet when the stirring mechanism is stirring the solder in the furnace. After the stirring mechanism has finished stirring, remove the second cover from the inlet to open the inlet and carry out subsequent operations on the solder. This reduces the risk of safety accidents caused by splashing during the stirring process of the solder melting furnace and improves the safety of the solder melting furnace during the stirring process. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a high-safety solder melting furnace;

[0025] Figure 2 Cross-section of a high-safety solder melting furnace Figure 1 ;

[0026] Figure 3 This is a schematic diagram of the drive mechanism;

[0027] Figure 4 An exploded view of the drive mechanism;

[0028] Figure 5 Cross-section of a high-safety solder melting furnace Figure 2 ;

[0029] Figure 6 A cross-sectional view of the first cap, the second cap, and the sliding assembly;

[0030] Figure 7 This is a schematic diagram of the structure of the rolling assembly and the furnace hood.

[0031] Reference numerals: 1. Furnace body; 11. Support; 12. Furnace cavity; 13. Feed inlet; 2. Drive mechanism; 21. Mounting base; 22. Connecting plate; 23. Support plate; 24. Drive motor; 25. Drive wheel; 26. Chain belt; 27. Driven wheel; 28. Protective cover; 3. Stirring mechanism; 31. Stirring rod; 32. First stirring block; 33. Second stirring block; 4. Protective mechanism; 41. Sliding assembly; 411. Pulley; 412. Connecting rod; 42. First cover; 43. Second cover; 431. Handle; 44. Connecting piece; 45. Through hole; 46. Slide rail; 461. Protrusion; 462. Limiting block; 47. Furnace hood; 471. Exhaust port; 472. Operating port; 473. Slide rail; 48. Stop door; 49. Rolling assembly; 491. Roller; 492. Connecting piece. Detailed Implementation

[0032] The following section provides a more detailed description, in conjunction with the accompanying diagrams:

[0033] As attached Figure 1 and attached Figure 2As shown, a high-safety solder melting furnace includes a furnace body 1, a drive mechanism 2, a stirring mechanism 3, and a protective mechanism 4.

[0034] The furnace body 1 is cylindrical in shape. A support 11 is installed at the lower end of the furnace body 1. A furnace cavity 12 for heating molten solder is installed inside the furnace body 1. A feed port 13 for feeding molten solder is opened at the upper end of the furnace body 1, and the outer diameter of the feed port 13 is smaller than the outer diameter of the furnace body 1.

[0035] As attached Figure 3 and attached Figure 4 As shown, the drive mechanism 2 includes a mounting base 21, a connecting plate 22, and a support plate 23.

[0036] Mounting base 21 is installed on the upper end face of furnace body 1, with one end of mounting base 21 located on the upper end face of furnace body 1 and the other end of mounting base 21 extending outside furnace body 1.

[0037] There are two support plates 23. Both support plates 23 are located on the side of the mounting base 21 facing away from the furnace body 1. Both support plates 23 are parallel to the mounting base 21. The support plates 23 and the mounting base 21 are fixedly connected to the upper end face of the furnace body 1.

[0038] There are two connecting plates 22, which are parallel to each other. The two connecting plates 22 are fixedly connected to the side walls of the two support plates 23 respectively, and both connecting plates 22 are fixedly connected to the mounting base 21.

[0039] One end of each of the two support plates 23 extends outside the furnace body 1 and is equipped with a drive motor 24. A drive wheel 25 is fixedly connected to the output shaft of the drive motor 24, and a chain belt 26 is fitted on the drive wheel 25; the other end of each of the two support plates 23 extends above the center of the furnace body 1 and is equipped with a stirring mechanism 3.

[0040] The drive assembly 2 also includes a protective cover 28, which is located on the side of the upper support plate 23 facing away from the mounting base 21 and is located on the outside of the chain belt 26. The protective cover 28 protects the chain belt 26, the drive wheel 25 and the driven wheel 27, and prevents the splashed molten solder from contacting the chain belt 26 and causing damage.

[0041] The stirring mechanism 3 includes a stirring rod 31, one end of which extends into the furnace body 1. A driven wheel 27 is fixedly connected to the end of the stirring rod 31 away from the furnace body 1. The driven wheel 27 is driven by the driving wheel 25 through a chain belt 26. The drive motor 24 drives the driving wheel 25 to rotate, and the driving wheel 25 drives the driven wheel 27 to rotate through the chain belt 26, thereby driving the stirring rod 31 to rotate.

[0042] As attached Figure 2 and attached Figure 5As shown, the stirring mechanism 3 also includes a first stirring block 32 and a second stirring block 33. The first stirring block 32 and the second stirring block 33 are both installed on the end of the stirring rod 31 that extends into the furnace cavity 12. The first stirring block 32 and the second stirring block 33 are relatively parallel, and the first stirring block 32 is located below the second stirring block 33.

[0043] The first stirring block 32 is located at the end of the stirring rod 31. The lower end surface of the first stirring block 32 is flat and fits against the bottom surface of the furnace cavity 12. It can fully stir the molten tin at the bottom of the furnace cavity 1. The two sides of the first stirring block 32 bend and extend from bottom to top toward the axis of the stirring rod 31, which can more effectively push the molten tin to flow upward, making the heat distribution more uniform and thus improving the efficiency of the furnace.

[0044] The upper surface of the second stirring block 33 is flat, and the two sides of the second stirring block 33 bend and extend downward toward the axis of the stirring rod 1, which can more effectively push the molten solder downward and make it less likely for the molten solder to splash outward.

[0045] As attached Figure 5 and attached Figure 6 As shown, the protective mechanism 4 includes a sliding assembly 41, a first cover 42, and a second cover 43.

[0046] The first cover 42 is shaped like a semi-circular frustum. The lower edge of the first cover 42 is fixedly connected to the circumferential side wall of the feed inlet 13. The upper edge of the first cover 42 is suspended outside the circumferential side wall of the stirring rod 31, and the first cover 42 is raised upward. The first cover 42 is located outside the feed inlet 13 and blocks the feed inlet 13.

[0047] The second cover 43 is shaped like a semi-circular frustum. The lower edge of the second cover 43 is located on the circumferential side wall of the feed inlet 13. A connecting piece 44 is also installed on the lower edge of the second cover 43. The upper edge of the second cover 43 is suspended outside the circumferential side wall of the stirring rod 31. The second cover 43 is raised upward. The second cover 43 is located on the side of the first cover 42 facing the feed inlet 13. A handle 431 is also installed on the side of the second cover 43 facing away from the feed inlet 13.

[0048] The sliding assembly 41 includes a pulley 411 and a connecting rod 412. A slide rail 46 is installed on the lower edge of the circumferential side wall of the feed inlet 13, and the slide rail 46 abuts against the connecting piece 44. The pulley 411 is slidably connected to the slide rail 46 within the slide rail 46. The upper and lower edges of the slide rail 46 facing the connecting piece 44 are provided with raised protrusions 461. The protrusions 461 restrict the pulley 411 within the slide rail 46 to prevent the pulley 411 from coming out of the slide rail 46.

[0049] The connecting rod 412 is cylindrical in shape and is located between the upper and lower protrusions 461 of the slide 46. One end of the connecting rod 412 is fixedly connected to the connecting piece 44, and the other end of the connecting rod 412 is rotatably connected to the pulley 411.

[0050] Before the stirring mechanism 3 starts stirring, hold the handle 431 on the second cover 43 and push it along the circumferential direction of the slide 46 so that the second cover 43 slides to block the feed port 13. When the handle 431 comes into contact with the first cover 43, the feed port 13 is completely blocked by the second cover 43 to prevent the molten solder from splashing out of the feed port 13 during the stirring process. After the stirring mechanism 3 finishes stirring, hold the handle 431 on the second cover 43 and push it along the slide 46 to open the feed port 13, which will facilitate subsequent operations on the molten solder.

[0051] Both the first cover 42 and the second cover 43 have through holes 45 on their upper edges for the stirring rod 31 to pass through, preventing the second cover 43 from colliding with the stirring rod 31 when it slides in the slide rail 46. At the same time, the through holes 45 can also serve as exhaust channels to discharge the gas inside the furnace body 1, maintaining a safe and clean working environment.

[0052] Two limit blocks 462 are installed inside the slide 46. Both limit blocks 462 are located below the first cover 42. The two limit blocks 462 limit the pulley 411. When the second cover 43 is pushed along the slide 46, the pulley 411 abuts against one of the limit blocks 462, preventing the pulley 411 from sliding further on the slide 46 and preventing the second cover 43 from continuing to push, so that the second cover 43 completely covers the feed inlet 13. When the second cover 43 is pushed along the slide 46 to completely open the feed inlet 13, the pulley 411 abuts against the other limit block 462, preventing the pulley 411 from sliding further on the slide 46, thus increasing the efficiency of pushing the second cover 43 to cover or open the feed inlet 13.

[0053] As attached Figure 1 and attached Figure 7 As shown, the protective mechanism 4 also includes a furnace cover 47 and a baffle door 48. The furnace cover 47 is cylindrical in shape. The lower edge of the furnace cover 47 is fixedly connected to the outer peripheral side wall of the upper end of the furnace body 1. An exhaust hole 471 is opened on the top of the furnace cover 47, and the exhaust hole 471 is coaxially aligned with the feed port 13. An operation port 472 for feeding tin material is opened on the outer peripheral side wall of the furnace cover 47.

[0054] The baffle door 48 is located outside the outer peripheral side wall of the furnace cover 47, and the baffle door 48 covers the outside of the operating port 472.

[0055] A rolling assembly 49 is provided between the baffle door 48 and the furnace hood 47. The rolling assembly 49 includes a roller 491 and a connector 492.

[0056] A slide rail 473 is also installed on the outer peripheral side wall of the top of the furnace cover 47. The roller 491 is slidably connected to the slide rail 473. One end of the connector 492 is rotatably connected to the roller 491, and the other end of the connector 492 is fixedly connected to the outer peripheral side wall of the top of the stop door 48. The roller 491 slides on the slide rail 473, thereby driving the stop door 48 to slide back and forth along the slide rail 473 to block or open the operation port 472.

[0057] Before the stirring mechanism 3 starts stirring after the tin material is added, the baffle 48 is pushed along the circumferential direction of the slide rail 473 so that the baffle 48 covers the operating port 472. After stirring is completed, the baffle 48 is pushed away from the driving mechanism 2 so that the operating port 472 is opened, so that the molten tin is not easy to fly out of the furnace during the stirring process, thereby reducing the waste rate of molten tin and improving the safety of the molten tin furnace.

[0058] Implementation process of this embodiment:

[0059] After pouring the tin material into the furnace body 1 through the feed port 13, hold the handle 431 of the second cover 43 and push the second cover 43 along the slide rail 46. When the pulley 411 abuts against a limit block 462, the limit block 462 stops the second cover 43 from being pushed further, and the second cover 43 completely covers the feed port 13. Then push the stop door 48 along the slide rail 473. When the stop door 48 is pushed against the side wall of the mounting base 21, the stop door 48 completely covers the operation port 472. Then start the drive motor 24. The output end of the drive motor 24 drives the drive wheel 25 to rotate. The drive wheel 25 drives the driven wheel 27 to rotate through the chain belt 26. The driven wheel 27 then drives the stirring rod 31 to rotate, stirring the molten tin in the furnace body 1.

[0060] After stirring is finished, stop the drive motor 24, push the baffle 48 along the slide rail 473 toward the side away from the drive mechanism 2 to open the operating port 472, and then hold the handle 431 of the second cover 43 and push the second cover 43 along the slide rail 46 toward the side away from the drive mechanism 2 to open the feed port 13. This allows the operator to use the container to scoop the molten tin into the mold for cooling and shaping. With the baffle 48 and the second cover 43 in place, impurities in the tin material will vaporize and form bubbles before the tin material. When the bubbles break, the molten tin will splash. The second cover 43 and the baffle 48 can block the splashed molten tin, preventing it from splashing out of the feed port 13, reducing safety hazards during the tin melting process and improving the safety of the tin melting furnace.

[0061] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of protection claimed in this application.

Claims

1. A high-safety solder melting furnace, comprising a furnace body (1), a drive mechanism (2), and a stirring mechanism (3), wherein the upper end of the furnace body (1) has a feed inlet (13), and the furnace body (1) has a furnace cavity (12) for heating solder, the stirring mechanism (3) is located above the feed inlet (13), and one end of the stirring mechanism (3) is inserted into the furnace body (1), and the other end of the stirring mechanism (3) is rotatably connected to the drive mechanism (2), characterized in that, It also includes a protective mechanism (4), which includes a sliding component (41), a first cover (42) and a second cover (43). The first cover (42) is fixedly connected to the circumferential sidewall of the feed inlet (13). A connecting piece (44) is installed on the lower edge of the second cover (43). A slide rail (46) is installed on the circumferential sidewall of the feed inlet (13). One end of the sliding component (41) is fixedly connected to the connecting piece (44), and the other end of the sliding component (41) is slidably connected to the slide rail (46).

2. The high-safety tin melting furnace according to claim 1, characterized in that, The sliding assembly (41) includes a pulley (411) and a connecting rod (412). The pulley (411) is slidably connected to the slide (46) in the slide (46). One end of the connecting rod (412) is rotatably connected to the pulley (411), and the other end of the connecting rod (412) is fixedly connected to the connecting piece (44).

3. The high-safety tin melting furnace according to claim 2, characterized in that, The slide (46) has raised protrusions (461) on both the upper and lower edges facing the connecting piece (44).

4. A high-safety tin melting furnace according to claim 3, characterized in that, Limiting blocks (462) are installed inside the slide (46). There are two limiting blocks (462), and both limiting blocks (462) are located below the first cover (42).

5. A high-safety tin melting furnace according to claim 1, characterized in that, Both the first cap (42) and the second cap (43) are raised upwards.

6. The high-safety solder melting furnace according to claim 1, characterized in that, The protective mechanism (4) also includes a furnace cover (47) and a door (48). An operating opening (472) is opened on the outer peripheral side wall of the furnace cover (47). A slide rail (473) is installed on the outer peripheral side wall at the top of the furnace cover (47). The door (48) covers the outside of the operating opening (472). A rolling assembly (49) is provided between the door (48) and the furnace cover (47). The rolling assembly (49) is slidably connected along the slide rail (473). The rolling assembly (49) drives the door (48) to slide back and forth along the slide rail (473) to block or open the operating opening (472).

7. A high-safety tin melting furnace according to claim 1, characterized in that, The stirring mechanism (3) includes a stirring rod (31), a first stirring block (32) and a second stirring block (33). The lower end face of the first stirring block (32) is in contact with the bottom surface of the furnace cavity (12). The first stirring block (32) and the second stirring block (33) are relatively parallel, and the first stirring block (32) is located below the second stirring block (33). The two sides of the first stirring block (32) bend and extend from bottom to top toward the axis of the stirring rod (31).

8. A high-safety solder melting furnace according to claim 7, characterized in that, The upper surface of the second stirring block (33) is flat, and the two sides of the second stirring block (33) bend and extend from top to bottom toward the axis of the stirring rod (31).

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