Tinning device with double tin furnaces

Abstract

The utility model discloses a double tin furnace tinning device, which belongs to the technical field of tinning, and comprises a large tin furnace tank, the bottoms of the front end and the rear end of the large tin furnace tank are respectively and fixedly connected with two fixing blocks, a tank body is arranged in the large tin furnace tank, and a tin furnace inner cylinder is connected in the tank body in a sliding manner; two guide columns are arranged at each of the front end and the rear end of the tin furnace inner cylinder, a cylinder body interior is formed in the tin furnace inner cylinder, an outlet is formed in one side of the bottom of the inner wall in the pool body, and a tin pump is installed on one side of the interior of the pool body. By designing the large tin furnace pool, the tin furnace inner cylinder and the tin pump which are simple, double tin furnaces can be additionally arranged on the inner side of the original tin furnace, the tin liquid pump is adopted to pump tin liquid in the tin furnace into the inner furnace, the tin liquid in the inner furnace overflows to drive surface oxides to flow out, and finally, the liquid level of the tin furnace is always kept bright and free of tin slag and tin ash, so that manual tin scraping by staff is completely avoided, and the tin scraping efficiency is improved. And the working performance of the double-tin-furnace tinning device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tinning, in particular to a double tin furnace tinning device. Background Art

[0002] A tin furnace is a device used to melt and cast tin. The operation is mainly composed of two processes: heating and heat transfer. First, the heating element (usually an electric furnace coil or an electromagnetic heating coil) in the tin furnace is heated by power supply. When the power is turned on, the heating element begins to heat up and transfers the heat to the tin material in the tin furnace cavity. The tin furnace body is generally made of high-temperature wear-resistant materials, such as refractory bricks or ceramic materials, to ensure that the furnace body can withstand high temperatures and has good thermal insulation properties. The provided insulation layer is used to reduce heat loss and improve energy efficiency. When the furnace chamber is subjected to heat transfer from the heating element, the tin material in the furnace chamber begins to heat up and gradually melt. Generally, there is a discharge port at the bottom of the tin furnace for discharging the molten tin liquid. After the tin material is melted in the furnace, open the valve and it will flow out from the discharge port under the action of gravity, thus realizing the continuous supply of molten tin material. After the tin bar is melted during the operation of the tin furnace, the oxidation of the surface of the tin liquid and the reaction of the metal elements (mainly Cu) in the tin furnace to generate some residues are inevitable, that is, the surface of the molten tin liquid is continuously oxidized to form tin slag; the reason is: the tin metal in the tin bar is the main component. If the tin content and purity are not enough, it means that impurities and other elements will increase, which also increases the chance of tin slag overflow. At the same time, both lead-free tin bars and leaded tin bars are made of tin alloys. When tin is in constant contact with air, a chemical reaction will occur to produce tin slag oxides. The tin bar changes from solid to liquid through high temperature, which will greatly increase the oxidation rate of tin, and the tin slag will become more and more. In addition, both lead-free tin bars and leaded tin bars have fixed melting points and operating temperatures. If the furnace temperature is not properly controlled, the oxidation process will be accelerated, and more tin slag will overflow. When the furnace temperature is too high or too low, black tin gray oxides will constantly emerge on the liquid surface of the tin furnace.

[0003] When preparing the solder strip by hot-dip coating, in order to ensure the quality of the solder strip, the alloy melt used is a pure solder without tin slag (ash) extracted from the tin furnace. The existing double tin furnace tinning device has a tin-lead alloy and lead oxides that cause a film on the liquid surface. The long-term static liquid surface will accumulate tin ash, which affects the quality of the solder strip and greatly reduces the effect of the tinning process.

[0004] Therefore, it is urgent to provide a double tin furnace tinning device to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is that when the existing double tin furnace tinning device is working, there are industry problems in the tinning process of the solder strip, oxides accumulate on the surface of the tin furnace, affecting the quality of the solder strip and increasing the frequency of manual tin scraping by employees. At present, the frequency of tin scraping is about once every 5 minutes when the machine is normally turned on, which seriously wastes manpower.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a double tin furnace tinning device, including a large tin furnace pool, the bottom of the front and rear ends of the large tin furnace pool are fixedly connected to two fixed blocks, and the large tin furnace pool is provided with a pool body;

[0007] The pool body is slidably connected with a tin furnace inner cylinder, and two guide pillars are arranged at both the front and rear ends of the tin furnace inner cylinder, and a cylinder body is opened inside the tin furnace inner cylinder;

[0008] An outlet is provided on one side of the bottom of the inner wall of the pool body, and a tin pump is installed on one side of the inner side of the pool body.

[0009] The utility model is further configured as follows: the outer walls of a plurality of guide posts are slidably connected to the interior of the pool body.

[0010] Through the above technical scheme, the molten solder in the large tin furnace pool is sucked into the inner cylinder of the tin furnace by the tin pump. Since the pump speed can be adjusted, a specific flow rate can be formed to continuously inject new tin liquid into the inner cylinder of the tin furnace. As the inner cylinder of the tin furnace is filled, overflow occurs, and the tin ash and oxides floating on the surface of the tin liquid will overflow from the inner cylinder of the tin furnace and flow into the recovery port, so that the surface of the solder in the inner cylinder of the tin furnace is mirror-like and free of impurities, which helps to improve the quality rate of the tin coating on the surface of the copper wire and reduces the frequency of employees removing tin slag.

[0011] The utility model is further configured as follows: an outlet connected to a tin pump is provided at the bottom of the large tin furnace pool.

[0012] Through the above technical scheme, an outlet connected to a tin pump is provided at the bottom of the large tin furnace pool, and a filter screen is provided at the outlet to discharge molten and pure tin liquid. After the tin material is heated and melted in the large tin furnace pool, the unoxidized tin at the bottom is pumped into the inner cylinder of the tin furnace by the tin pump, and a slight wave is formed to make the liquid surface flow, forcing the tin slag on the surface to overflow to the surroundings, thereby realizing continuous supply of the tin plating process.

[0013] The utility model is further configured as follows: the large tin furnace pool and the inner cylinder of the tin furnace are both provided with control devices.

[0014] Through the above technical scheme, the double-layer tin furnace is equipped with a control device for adjusting the power and working temperature of the heating element. By adjusting the power supply current and heating time, the temperature of the tin furnace can be accurately controlled, thereby meeting different process requirements. The temperature of the tin bar with a tin content of 63% is preferably set at 220℃-250℃, and the temperature of the tin bar with a tin content of 60% is preferably set at 250℃-280℃. By strictly controlling the temperature in the furnace, the oxidation process of the tin material is reduced, the utilization rate of the tin material is improved, and the frequency of slag removal operations is reduced, thereby reducing production costs and improving the preparation quality of solder strip products.

[0015] The utility model is further configured as follows: the size of the inner cylinder of the tin furnace needs to be customized, and the large tin furnace pool and the inner cylinder of the tin furnace are rectangular.

[0016] Through the above technical scheme, through the setting of the inner cylinder of the tin furnace, it is convenient to automatically control and remove the amount of tin slag floating on the surface of the tin liquid, so as to avoid the copper body from absorbing the tin slag during the tin dipping process and affecting the quality of the soldering strip. At the same time, the exposed working surface of the tin liquid in operation is reduced, thereby reducing the contact between the surface tin liquid and oxygen and oxidation, thereby improving the utilization rate of the tin material, reducing production costs, and avoiding the blockage of the subsequent die holes causing frequent wire breaks, affecting the length of the single line of the finished product.

[0017] The utility model is further configured as follows: the tin pump is located between the large tin furnace pool and the inner cylinder of the tin furnace.

[0018] Through the above technical scheme, through the setting of the tin pump, the tin material of the large tin furnace pool can be filtered and continuously input into the inner cylinder of the tin furnace, so that the tin temperature of the tin material in the inner cylinder of the tin furnace can be adjusted and controlled, reducing the phenomenon of black tin gray oxide constantly emerging due to the low temperature of the tin liquid. At the same time, the quality of the tin liquid is effectively guaranteed, and other alloy components in the tin liquid are mixed more evenly and fully, thereby ensuring that the composition and concentration of the plating solution meet the requirements, thereby improving the quality of the tin layer on the surface of the copper body of the welding strip. Furthermore, the flow and circulation of the tin liquid increases the activity of the metal molecules in the tin material in the inner cylinder of the tin furnace, which is convenient for it to quickly form a continuous tin plating layer on the surface of the copper wire, thereby facilitating the improvement of the preparation speed, reducing the contact time between the copper substrate and the tin liquid, reducing the probability of the matrix copper atoms diffusing into the molten liquid, and improving the service life of the photovoltaic welding strip.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. The utility model can add a double tin furnace inside the original tin furnace by designing a simple large tin furnace pool, a tin furnace inner cylinder and a tin pump. The tin liquid pump is used to pump the tin liquid in the tin furnace to the inner furnace. The overflow of the inner furnace tin liquid drives the surface oxide to flow out. Finally, the tin furnace liquid surface is kept bright without tin slag and tin ash. Employees do not need to scrape tin manually, which greatly improves the working performance of the double tin furnace tinning device;

[0021] 2. The utility model customizes the size of the built-in tin furnace by designing a simple tin furnace inner cylinder and a tin pump, and adds a tin pump inside the tin furnace so that the tin liquid can circulate. As the internal tin liquid flows repeatedly, the employees are prevented from manually scraping the tin, which greatly improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the large tin furnace pool of the utility model;

[0023] Figure 2 This is a front view of a large tin furnace pool of the utility model;

[0024] Figure 3 It is a top view of a large tin furnace pool of the utility model;

[0025] Figure 4 This is a right view of a large tin furnace pool of the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the inner cylinder of the tin furnace of the utility model;

[0027] Figure 6 This is a front view of the inner cylinder of the tin furnace of the utility model;

[0028] Figure 7 This is a top view of the inner cylinder of the tin furnace of the utility model;

[0029] Figure 8 This is a right side view of the inner cylinder of the tin furnace of the utility model;

[0030] Fig. 9 It is a three-dimensional structural schematic diagram of the utility model;

[0031] Fig.10 It is a top view of the utility model.

[0032] In the figure: 1. Large tin furnace pool; 2. Fixed block; 3. Inside of the pool body; 4. Inner cylinder of the tin furnace; 5. Guide column; 6. Inside of the cylinder body; 7. Outlet; 8. Tin pump. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0034] See also Figure 1-Figure 10A double tin furnace tinning device comprises a large tin furnace pool 1, two fixed blocks 2 are fixedly connected to the bottom of the front and rear ends of the large tin furnace pool 1, a pool body 3 is opened inside the large tin furnace pool 1, a tin furnace inner cylinder 4 is slidably connected to the pool body 3, two guide columns 5 are arranged at the front and rear ends of the tin furnace inner cylinder 4, and the outer walls of the plurality of guide columns 5 are slidably connected to the pool body 3. The molten solder in the large tin furnace pool 1 is sucked into the tin furnace inner cylinder 4 by a tin pump 8. Since the pump speed can be adjusted, a specific flow rate can be formed to continuously inject new tin liquid into the tin furnace inner cylinder 4. As the tin furnace inner cylinder 4 is filled, overflow occurs, and the tin ash and oxide floating on the surface of the tin liquid will overflow the tin furnace inner cylinder 4 and flow into the recovery port, so that the solder surface in the tin furnace inner cylinder 4 is mirrored and free of impurities, which helps to improve the excellent rate of the quality of the tin coating layer on the surface of the copper wire, and also reduces the operation frequency of employees removing tin slag;

[0035] like Figure 5-Figure 8 As shown, a cylinder body 6 is provided inside the tin furnace inner cylinder 4, an outlet 7 is provided on one side of the bottom of the inner wall of the pool body 3, and an outlet 7 connected to a tin pump 8 is provided at the bottom of the large tin furnace pool 1. An outlet 7 connected to the tin pump 8 is provided at the bottom of the large tin furnace pool 1, and a filter screen is provided at the outlet 7 to discharge molten and pure tin liquid. After the tin material is heated and melted in the large tin furnace pool 1, the tin that is not oxidized at the bottom is pumped into the tin furnace inner cylinder 4 by the tin pump 8, and a slight wave is formed to make the liquid surface flow, forcing the tin slag on the surface to overflow to the surroundings, thereby realizing the continuous supply of the tin plating process;

[0036] like Figure 1-Figure 4 As shown, the large tin furnace pool 1 and the inner cylinder 4 of the tin furnace are both provided with control devices. At the same time, the double-layer tin furnace is equipped with a control device for adjusting the power and working temperature of the heating element. By adjusting the power supply current and the heating time, the temperature of the tin furnace is accurately controlled, thereby meeting different process requirements. The temperature of the tin bar with a tin content of 63% is preferably set at 220°C-250°C, and the temperature of the tin bar with a tin content of 60% is preferably set at 250°C-280°C. By strictly controlling the temperature in the furnace, the oxidation process of the tin material is reduced, the utilization rate of the tin material is improved, and the frequency of the slag removal operation is reduced, thereby reducing the production cost and improving the preparation quality of the solder strip product.

[0037] like Figure 5-Figure 8 As shown, the size of the inner cylinder 4 of the tin furnace needs to be customized. The large tin furnace pool 1 and the inner cylinder 4 of the tin furnace are rectangular. Through the setting of the inner cylinder 4 of the tin furnace, it is convenient to automatically control and remove the amount of tin slag floating on the surface of the tin liquid, so as to avoid the copper body from absorbing the tin slag during the tin coating process and affecting the quality of the solder strip. At the same time, the exposed working surface of the tin liquid in the work is reduced, thereby reducing the contact between the surface tin liquid and oxygen and oxidation, thereby improving the utilization rate of the tin material, reducing the production cost, and avoiding the blockage of the die hole in the back process and causing frequent wire breakage, affecting the length of the single wire of the finished product;

[0038] like Figure 9-10 As shown, a tin pump 8 is installed on one side of the interior of the pool body 3, and the tin pump 8 is located between the large tin furnace pool 1 and the tin furnace inner cylinder 4. Through the setting of the tin pump 8, the tin material of the large tin furnace pool 1 can be continuously input into the tin furnace inner cylinder 4 after filtering, so that the tin temperature of the tin material in the tin furnace inner cylinder 4 can be regulated and controlled, reducing the phenomenon of black tin gray oxide constantly emerging due to the low temperature of the tin liquid. At the same time, the quality of the tin liquid is effectively guaranteed, and other alloy components in the tin liquid are mixed more evenly and fully, thereby ensuring that the composition and concentration of the plating solution meet the requirements, thereby improving the quality of the tin layer on the surface of the copper body of the welding strip. Furthermore, the flow and circulation of the tin liquid increases the activity of the metal molecules in the tin material in the tin furnace inner cylinder 4, which is convenient for it to quickly form a continuous tin plating layer on the surface of the copper wire, thereby facilitating the improvement of the preparation speed, reducing the contact time between the copper substrate and the tin liquid, reducing the probability of the matrix copper atoms diffusing into the molten liquid, and improving the service life of the photovoltaic welding strip.

[0039] When the utility model is in use, the molten solder in the large tin furnace pool 1 is sucked into the inner cylinder 4 of the tin furnace by the tin pump 8. Since the pump speed can be adjusted, a specific flow rate can be formed to continuously inject new tin liquid into the inner cylinder 4 of the tin furnace. As the inner cylinder 4 of the tin furnace is filled, overflow occurs, and the tin ash and oxide floating on the surface of the tin liquid will overflow the inner cylinder 4 of the tin furnace and flow into the recovery port. An outlet 7 connected to the tin pump 8 is provided at the bottom of the large tin furnace pool 1, and a filter is provided at the outlet 7 to discharge the molten and pure tin liquid. By adjusting the power supply current and the heating time, the temperature of the tin furnace can be accurately controlled. Through the setting of the inner cylinder 4 of the tin furnace, it is convenient to automatically and effectively control and remove the amount of tin slag floating on the surface of the tin liquid. Through the setting of the tin pump 8, the tin material of the large tin furnace pool 1 can be continuously input into the inner cylinder 4 of the tin furnace after filtering, so that the tin temperature of the tin material in the inner cylinder 4 of the tin furnace can be adjusted and controlled, thereby completing the working process of the entire tinning device.

[0040] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A double tin furnace tinning device, comprising a large tin furnace pool (1), characterized in that: Two fixing blocks (2) are fixedly connected to the bottom of both the front and rear ends of the large tin furnace pool (1), and a pool body (3) is provided inside the large tin furnace pool (1); The interior of the pool body (3) is slidably connected to a tin furnace inner cylinder (4), two guide columns (5) are provided at both the front and rear ends of the tin furnace inner cylinder (4), and a cylinder body interior (6) is opened inside the tin furnace inner cylinder (4); An outlet (7) is provided on one side of the bottom of the inner wall of the interior of the pool (3), and a tin pump (8) is installed on one side of the interior of the pool (3).

2. A double tin furnace tinning device according to claim 1, characterized in that: The outer walls of the plurality of guide posts (5) are slidably connected to the interior of the pool body (3).

3. A double tin furnace tinning device according to claim 1, characterized in that: The bottom of the large tin furnace pool (1) is provided with an outlet (7) which is connected to a tin pump (8).

4. A double tin furnace tinning device according to claim 1, characterized in that: The large tin furnace pool (1) and the tin furnace inner cylinder (4) are both provided with control devices.

5. A double tin furnace tinning device according to claim 1, characterized in that: The size of the inner cylinder (4) of the tin furnace needs to be customized.

6. A double tin furnace tinning device according to claim 1, characterized in that: The large tin furnace pool (1) and the tin furnace inner cylinder (4) are rectangular.

7. A double tin furnace tinning device according to claim 1, characterized in that: The tin pump (8) is located between the large tin furnace pool (1) and the tin furnace inner cylinder (4).

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