A tin soldering wire forming machine

Abstract

The application relates to the technical field of a solder melting furnace, in particular to a solder melting furnace of a solder wire forming machine, which comprises a furnace body, a control panel, a heating element, a door body and a plurality of positioning mechanisms, the control panel and the door body are connected to the furnace body, the heating element is arranged on the inner wall of the furnace body, the positioning mechanisms are used for fixing a crucible, and the crucible is used for containing to-be-melted solder. The plurality of positioning mechanisms are distributed in a rectangular array in the cavity of the furnace body, the layout mode fully utilizes the internal space of the furnace body, compared with the traditional scattered or irregular arrangement, more crucibles can be accommodated in the limited space of the furnace body to simultaneously perform solder melting operation. The amount of solder raw materials that can be processed at a time is greatly increased, the production efficiency of solder melting is significantly improved, the number of batch processing is reduced, the energy consumption and time cost of unit output are reduced, and the demand of large-scale industrial production for solder melting efficiency and capacity is effectively met.

Description

Technical Field

[0001] This application relates to the technical field of solder melting furnaces, and in particular to a solder melting furnace for a solder wire forming machine. Background Technology

[0002] In today's industrial sector, tin, with its relatively stable chemical properties at room temperature, is widely used in many key industries such as electronics, information technology, electrical appliances, chemicals, metallurgy, building materials, food packaging, machinery, and aerospace. Especially in electronics manufacturing, as electronic products rapidly evolve towards miniaturization, high precision, and personalization, and chip sizes continue to shrink, the importance of tin as a packaging connector is becoming increasingly prominent. Its common forms, solder wire and solder balls, are also developing towards finer and smaller specifications to meet the high-speed performance requirements of electronic products. This has not only driven the transformation of related industries from the traditional "selling by the ton" model to a higher value-added model of "selling by the piece" and "selling by the gram," but has also posed unprecedented challenges to tin processing technology.

[0003] As a key material for achieving electrical interconnection and mechanical connection in integrated circuit packaging, BGA solder balls have seen rapid market demand growth with an annual growth rate consistently above 10% due to the rise of ball grid array packaging technology. Ultrafine solder wire, with its high-precision dimensional characteristics, plays an irreplaceable role in the soldering of high-precision microelectronic components. It not only enables precise soldering control, reduces solder bridges and cold solder joints, and improves soldering yield and reliability, but also plays a crucial role in overcoming the technological bottlenecks in the deep processing of foreign solder wire and promoting the process of domestic substitution.

[0004] In the tin processing flow, the tin melting stage is crucial. Traditional tin melting furnaces have many shortcomings in design and structure. For example, the positioning mechanism is scattered or irregularly laid out, resulting in insufficient utilization of the furnace's internal space, limiting the number of crucibles that can be accommodated at one time, leading to low tin melting efficiency and making it difficult to meet the urgent demands of large-scale industrial production for tin melting efficiency and capacity. At the same time, the auxiliary mechanisms of some tin melting furnaces are poorly designed, making it inconvenient to operate when loading and unloading crucibles and raw materials, wasting manpower and time, and affecting the overall production rhythm. Utility Model Content

[0005] In order to solve the problems mentioned in the background art, this application provides a solder melting furnace for a solder wire forming machine.

[0006] This application provides a tin melting furnace for a tin wire forming machine, which adopts the following technical solution: it includes a furnace body, a control panel, a heating element, a door, and multiple positioning mechanisms. The control panel and the door are connected to the furnace body. The heating element is disposed on the inner wall of the furnace body. The multiple positioning mechanisms are arranged in a rectangular shape in the cavity of the furnace body. The positioning mechanisms are used to fix the crucible, and the crucible is used to hold the tin to be melted.

[0007] Optionally, the positioning mechanism includes a first support base, a second support base, a screw, a mounting bracket, a first plate, a first notch, a second plate, two third plates, and two second notches;

[0008] The first support base is connected to the screw, the second support base is rotatably connected to the screw, the screw is connected to the mounting bracket, the mounting bracket is connected to the first plate, and the first notch is machined on the first plate;

[0009] The two third plates are connected to the second plate, and the two second notches are respectively machined on the two third plates. The two second notches and one first notch are used to position the crucible.

[0010] Optionally, the positioning mechanism further includes a nut, which abuts against the side of the second plate away from the crucible, and the nut is threadedly connected to the screw.

[0011] Optionally, the positioning mechanism further includes a handle connected to the nut.

[0012] Optionally, the two second notches and one first notch are arranged in a triangular pattern.

[0013] Optionally, it may also include an auxiliary mechanism, which includes a base plate, a sliding plate, and a rotating plate;

[0014] The base plate is connected to the inner wall of the furnace body and is slidably connected to the slide plate. The front of the base plate is rotatably connected to the rotating plate via a pin. The rotating plate is in contact with the end faces of the slide plate and the base plate. When the rotating plate is in a horizontal state, the rotating plate can be fixed to the base plate by a fastener. The bottom of the second plate is in contact with the top of the slide plate. The second plate can only move along the axial direction of the screw. The bottoms of the first support seat and the second support seat are connected to the top of the slide plate.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] This invention utilizes multiple positioning mechanisms arranged in a rectangular array within the furnace cavity. This layout fully utilizes the internal space of the furnace, allowing for the simultaneous melting of more crucibles within a limited furnace space compared to traditional scattered or irregular arrangements. This significantly increases the amount of tin material that can be processed at one time, substantially improving melting efficiency, reducing the number of batch processing operations, and lowering energy consumption and time costs per unit output. It effectively meets the demands of large-scale industrial production for melting efficiency and capacity. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the front in an embodiment of this application;

[0018] Figure 2 This is an exploded view of an embodiment of this application;

[0019] Figure 3 This is a three-dimensional structural diagram of the positioning mechanism and auxiliary mechanism in the embodiments of this application;

[0020] Figure 4 This is an enlarged view of the positioning mechanism in the embodiments of this application.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Furnace body; 2. Control panel; 3. Heating element; 4. Door; 5. Positioning mechanism; 501. First support base; 502. Second support base; 503. Screw; 504. Second plate; 505. Third plate; 506. Second notch; 507. First plate; 508. First notch; 509. Mounting bracket; 510. Nut; 511. Handle; 6. Auxiliary mechanism; 601. Base plate; 602. Slide plate; 603. Rotating plate; 7. Crucible Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0024] This application discloses a solder melting furnace for a solder wire forming machine.

[0025] Please see Figure 1 and Figure 2The furnace body 1 serves as the basic framework of the overall structure, with a regular cubic shape and an enclosed cavity inside to accommodate the items to be processed. The control panel 2 is installed on the upper front of the furnace body 1 and is connected to the electrical components inside the furnace body 1 through integrated wiring. It is equipped with operating components such as temperature adjustment buttons, time control knobs, and start / stop switches. Operators can set and adjust the working parameters inside the furnace body 1 through the control panel 2. The door 4 is hinged to one side of the lower front of the furnace body 1 and can open and close around the hinge point. The door 4 is equipped with a high-temperature resistant sealing strip, which can fit tightly against the furnace body 1 when closed to prevent heat loss and harmful gas leakage, ensuring the airtightness of the furnace body 1.

[0026] The heating element 3 is made of high-temperature resistant resistance wire and is evenly distributed and fixedly installed on the inner wall of the furnace body 1, including the left and right side walls, the rear wall and the top inner wall of the furnace body 1. It is powered by an external power supply and can generate heat when working, heating the cavity of the furnace body 1 by radiation and convection, thereby raising the temperature of the molten tin.

[0027] Multiple positioning mechanisms 5 are regularly arranged in a rectangular array inside the cavity of the furnace body 1. Their number is rationally set according to the size of the cavity. Based on this structural design, this invention has significant beneficial effects. The rectangular array of positioning mechanisms 5 within the cavity of the furnace body 1 fully utilizes the internal space of the furnace body 1. Compared to traditional scattered or irregular arrangements, it can accommodate a greater number of crucibles 7 for simultaneous tin melting within the limited furnace space. The amount of tin raw material that can be processed at one time is significantly increased, significantly improving the production efficiency of tin melting, reducing the number of batch processing operations, and lowering the energy consumption and time cost per unit output. This effectively meets the demands of large-scale industrial production for tin melting efficiency and capacity.

[0028] Please see Figure 3 and Figure 4 Multiple positioning mechanisms 5 are regularly arranged in a rectangular array inside the cavity of the furnace body 1. The specific structure of each positioning mechanism 5 is as follows:

[0029] The first support base 501 is bolted to the slide plate 602 at its bottom, and has an internal threaded hole at its top for threaded connection with the external thread at one end of the screw 503. The second support base 502 is also fixed to the slide plate 602, and has a bearing inside. The screw 503 passes through the bearing and is rotatably connected to the second support base 502, allowing the screw 503 to rotate freely within the second support base 502. A mounting bracket 509 is welded to the middle of the screw 503. The mounting bracket 509 has an L-shaped structure, with its vertical side connected to the screw 503 and its horizontal side fixed to the first plate 507 by bolts. The first notch 508 is arc-shaped.

[0030] The screw 503 penetrates the second plate 504. The second plate 504 has a through hole that matches the outer diameter of the screw 503, with a clearance fit. The bottom of the second plate 504 is flush with the top of the sliding plate 602, allowing the second plate 504 to move only along the axial direction of the screw 503. Two third plates 505 are vertically welded to the upper surface of the second plate 504, and are symmetrically distributed. Each third plate 505 has an arc-shaped second notch 506 machined on its upper surface. During operation, the crucible 7 is placed between the two second notches 506 and one first notch 508. Because the three are triangularly distributed, the crucible 7 can be positioned from three directions. When it is necessary to fix the crucible 7, rotate the nut 510 threadedly connected to the screw 503. The nut 510 has an anti-slip rubber pad on the side near the second plate 504. As the nut 510 is tightened, it presses against the side of the second plate 504 away from the crucible 7, pushing the second plate 504 to move axially along the screw 503. This causes the second notch 506 to fit tightly against the outer wall of the crucible 7, achieving a secure fixation. A handle 511 is welded to the top of the nut 510 for easy operation by the operator.

[0031] In addition, this utility model also includes an auxiliary mechanism 6, which includes a base plate 601, a sliding plate 602, and a rotating plate 603. The base plate 601 is welded to the inner wall of the furnace body 1, and its surface is provided with a dovetail groove. The bottom of the sliding plate 602 is provided with a dovetail block that matches the dovetail groove. The two slide together, allowing the sliding plate 602 to slide horizontally on the base plate 601. The front of the base plate 601 is rotatably connected to the rotating plate 603 by a pin, and the rotating plate 603 can rotate around the pin in a vertical plane. When the rotating plate 603 rotates to a horizontal position, its lower surface is tightly fitted with the end faces of the sliding plate 602 and the base plate 601, which can restrict the movement of the sliding plate 602. Bolts are used as fasteners to fix the rotating plate 603 to the base plate 601, preventing the rotating plate 603 from rotating arbitrarily. The user can pull out the sliding plate 602 to remove the raw materials from the crucible 7.

[0032] The implementation principle of the solder melting furnace of a solder wire forming machine according to this application embodiment is as follows: The control panel 2 is connected to the electrical components inside the furnace through internal wiring. The operator can use components such as temperature adjustment buttons, time control knobs, and start / stop switches to accurately set parameters such as solder melting temperature and duration, and control the solder melting process throughout. The door 4, hinged at the bottom of the front, relies on a high-temperature resistant sealing strip to fit tightly against the furnace body 1 when closed, effectively isolating heat loss and harmful gas leakage, ensuring the sealing and safety of the solder melting environment. The heating elements 3, made of high-temperature resistant resistance wire, are evenly distributed and fixed on the left and right side walls, rear wall, and top inner wall of the furnace body 1. After connecting to an external power source, the heating elements 3 transfer heat to the cavity of the furnace body 1 through both radiation and convection, providing a heat source for the solder to be melted in the crucible 7, causing the solder raw material to gradually melt, and providing liquid raw material for the subsequent solder wire forming process.

[0033] During the solder melting preparation stage, the first support 501 and the second support 502 of each positioning mechanism 5 are fixed to the slide plate 602 by bolts. One end of the screw 503 is threaded to the first support 501, and the other end passes through the bearing in the second support 502 to achieve a rotatable connection. The mounting bracket 509 is welded to the middle of the screw 503, and its horizontal edge is fixed to the first plate 507 by bolts. The first plate 507 has an arc-shaped first notch 508. The screw 503 passes through the second plate 504, and the bottom of the second plate 504 is in contact with the top of the slide plate 602. The two are fitted with a clearance fit so that it can only move along the axial direction of the screw 503. Two symmetrically distributed third plates 505 are vertically welded to the second plate 504, and each third plate 505 has an arc-shaped second notch 506. The crucible 7 is placed between two second notches 506 and one first notch 508. The nut 510 is rotated, and the nut 510 presses against the second plate 504, pushing it to move axially along the screw 503, so that the second notches 506 are tightly fitted with the outer wall of the crucible 7, thereby achieving a stable fixation of the crucible 7 and ensuring the stability of the crucible 7 during the tin melting process.

[0034] Auxiliary mechanism 6 further optimizes the solder melting process. The base plate 601 is welded and fixed to the inner wall of the furnace body 1. Its surface dovetail grooves slide in conjunction with the dovetail block at the bottom of the slide plate 602, allowing the slide plate 602 to slide horizontally on the base plate 601. The rotating plate 603 is rotatably connected to the base plate 601 via a pin. When the rotating plate 603 rotates to a horizontal position, its lower surface is tightly fitted with the slide plate 602 and the end face of the base plate 601. Fixing the rotating plate 603 with bolts restricts the movement of the slide plate 602, providing additional support for the crucible 7. After solder melting is complete, the fixing bolts of the rotating plate 603 are unscrewed, and the rotating plate 603 is rotated to release the restriction on the slide plate 602. The slide plate 602 can then be pulled out, allowing for convenient removal of the raw material from the crucible 7, achieving an efficient and safe solder melting process.

[0035] Existing methods for placing crucibles with partitions are often limited by planar layouts, making it difficult to fully utilize the three-dimensional space inside the furnace body 1. However, the clamping method, combined with the regular rectangular array distribution of the positioning mechanism 5, allows for multi-layered and orderly arrangement of crucibles 7 within the cavity of the furnace body 1. This improves space utilization in three dimensions, enabling more crucibles 7 to be placed within the same volume of the furnace body 1, processing more tin raw materials at once, significantly improving tin melting efficiency, and meeting the needs of large-scale production. At the same time, the positioning mechanism 5 ensures the stability of the crucibles 7 during the heating process.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A solder melting furnace for a solder wire forming machine, comprising a furnace body (1), a control panel (2), a heating element (3), a door (4), and multiple positioning mechanisms (5), characterized in that: The control panel (2) and the door (4) are connected to the furnace body (1). The heating element (3) is set on the inner wall of the furnace body (1). Multiple positioning mechanisms (5) are arranged in a rectangular shape in the cavity of the furnace body (1). The positioning mechanism (5) is used to fix the crucible (7). The crucible (7) is used to hold the tin to be melted.

2. The solder melting furnace of a solder wire forming machine according to claim 1, characterized in that: The positioning mechanism (5) includes a first support base (501), a second support base (502), a screw (503), a mounting bracket (509), a first plate (507), a first notch (508), a second plate (504), two third plates (505) and two second notches (506); The first support base (501) is connected to the screw (503), the second support base (502) is rotatably connected to the screw (503), the screw (503) is connected to the mounting bracket (509), the mounting bracket (509) is connected to the first plate (507), the first notch (508) is machined on the first plate (507), and the screw (503) is slidably connected to the second plate (504). The two third plates (505) are connected to the second plate (504), and the two second notches (506) are respectively machined on the two third plates (505). The two second notches (506) and one first notch (508) are used to position the crucible (7).

3. The solder melting furnace of a solder wire forming machine according to claim 2, characterized in that: The positioning mechanism (5) further includes a nut (510), which abuts against the side of the second plate (504) away from the crucible (7), and the nut (510) is threadedly connected to the screw (503).

4. The solder melting furnace of a solder wire forming machine according to claim 3, characterized in that: The positioning mechanism (5) also includes a handle (511), which is connected to the nut (510).

5. The solder melting furnace of a solder wire forming machine according to claim 2, characterized in that: The two second gaps (506) and one first gap (508) are arranged in a triangular pattern.

6. The solder melting furnace of a solder wire forming machine according to claim 2, characterized in that: It also includes an auxiliary mechanism (6), which includes a base plate (601), a sliding plate (602), and a rotating plate (603). The base plate (601) is connected to the inner wall of the furnace body (1). The base plate (601) is slidably connected to the slide plate (602). The front of the base plate (601) is rotatably connected to the rotating plate (603) by a pin. The rotating plate (603) is in contact with the end face of the slide plate (602) and the base plate (601). When the rotating plate (603) is in a horizontal state, the rotating plate (603) can be fixed to the base plate (601) by a fastener. The bottom of the second plate (504) is in contact with the top of the slide plate (602). The second plate (504) can only move along the axial direction of the screw (503). The bottom of the first support seat (501) and the second support seat (502) are connected to the top of the slide plate (602).

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