Tin immersion device

Abstract

The utility model discloses a tin immersion device. The tin immersion device comprises a first tin pool, a second tin pool, a tin scraping assembly, a tin feeding assembly, a circulating assembly and a grabbing assembly. The circulating assembly conveys tin liquid to the first tin pool, and the overflowed tin liquid flows to the second tin pool and then is conveyed back to the circulating assembly; the tinning assembly is provided with a tin bowl and a first driving part, for each time of tin immersion operation, the tin bowl is initially completely immersed in tin liquid in the first tin pool, after the tin scraping assembly scrapes a tin film on the surface of the tin liquid in the first tin pool, the first driving part drives the tin bowl to lift, and the grabbing assembly grabs a workpiece into the tin bowl for tin immersion operation; the tin bowl descends to return to the initial state after completion, so that the height of the tin liquid in the tin bowl each time is consistent and no tin film exists on the surface of the tin liquid, the tin immersion amount of the workpiece after each time of tin immersion operation is consistent, and the yield of a production line is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tin immersion, in particular to a tin immersion device. BACKGROUND

[0002] The conventional tin immersion device is provided with a tin pool and a tin scraping assembly. Before performing the tin immersion operation, the tin scraping assembly is used to scrape off the tin film formed on the surface of the tin liquid. However, this will result in inconsistent liquid level of each tin immersion operation, thereby causing the tin immersion amount of the workpiece after each tin immersion operation to be different, and further resulting in low yield of the production line. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a tin immersion device, which comprises: a first tin pool for containing tin liquid; a tin scraping assembly for scraping off the tin film on the surface of the tin liquid in the first tin pool; and a tin feeding assembly, wherein the tin feeding assembly is provided with a tin feeding part and a first driving part, the tin feeding part comprises a connecting rod and a tin bowl connected with the connecting rod, the tin bowl has a first position and a second position relative to the first tin pool, in the first position, the tin bowl is completely immersed in the tin liquid of the first tin pool, in the second position, the tin bowl is away from the surface of the tin liquid of the first tin pool and has a first distance, the first driving part is connected with the connecting rod and is used to drive the tin bowl connected with the connecting rod to switch between the first position and the second position, and a grabbing assembly, wherein the grabbing assembly is used to grab a workpiece and drive the workpiece into the tin bowl in the second position for tin immersion operation.

[0004] In some embodiments, the tin immersion device further comprises a second tin pool and a circulating assembly, the circulating assembly is provided with a tin storage part, an output part and a return part, the tin storage part is connected between the output part and the return part, the second tin pool is arranged below the first tin pool and is connected with the first tin pool, the first tin pool completely falls into the second tin pool in the orthogonal projection on the horizontal plane, the first tin pool is connected with the output part, and the second tin pool is connected with the return part.

[0005] In some embodiments, the first driving part is configured to drive the tin bowl to move up and down in the vertical direction.

[0006] In some embodiments, the tin scraping assembly comprises a tin scraping part and a second driving part, the tin scraping part has a third position and a fourth position relative to the first tin pool, in the third position, the tin scraping part in horizontal plane projection and the first tin pool in horizontal plane projection overlap area is minimum, in the fourth position, the tin scraping part in horizontal plane projection and the first tin pool in horizontal plane projection overlap area is maximum, the second driving part is connected with the tin scraping part, and is used to drive the tin scraping part to switch between the third position and the fourth position, so that the tin scraping assembly scrapes the tin film on the surface of the first tin pool, and in the fourth position, the tin bowl in horizontal plane projection is all in the tin scraping part in horizontal plane projection.

[0007] In some embodiments, the lowest point of the top of the side wall of the first tin pool is higher than the lowest point of the top of the side wall of the second tin pool.

[0008] In some embodiments, the bottom of the first tin pool is provided with a foot support, and the foot support is connected to the bottom wall of the second tin pool away from the first tin pool.

[0009] In some embodiments, the connecting rod comprises a first connecting section and a second connecting section, the first connecting section is connected with the tin bowl and the second connecting section, the second connecting section is connected with the first connecting section and the first driving part, the first connecting section is at least partially configured as a straight rod section, the straight rod section is parallel to the side wall of the first tin pool, and the distance between the straight rod section and the side wall of the first tin pool is less than 5mm.

[0010] In some embodiments, the tin bowl is configured as an open-ended cuboid groove, and in the first position and the second position, the bottom surface of the cuboid groove is parallel to the horizontal plane.

[0011] In some embodiments, the circulation assembly, the first tin pool, the second tin pool, the tin scraping assembly and / or the tin coating assembly are provided with a heating part for heating the tin liquid in the circulation assembly, the first tin pool, the second tin pool, the tin scraping assembly and / or the tin coating assembly.

[0012] The immersion tin device provided by the application is provided with a first tin pool, a second tin pool, a tin scraping assembly, a tin coating assembly, a circulation assembly and a grabbing assembly, in the gap between each time the grabbing assembly performs the immersion tin operation, the tin bowl of the tin coating assembly is completely immersed in the tin liquid of the first tin pool, the tin scraping assembly scrapes the tin after moving upward in the vertical direction, and then the grabbing assembly performs the immersion tin operation, so that the tin liquid height in the tin bowl is consistent and the tin film on the surface of the tin liquid is ensured each time, so that the immersion tin amount of the workpiece is consistent after each immersion tin operation, and the yield of the production line is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the accompanying drawings in the following description only represent some embodiments of the present application, and all other drawings obtained by those skilled in the art without any creative effort based on these drawings are also within the protection scope of the present application.

[0014] Figure 1 is a perspective view of the assembly structure of the first tin pool, the second tin pool, the upper tin assembly and the tin scraping assembly in the tin immersion device described in the present application.

[0015] Figure 2 is a front view of the assembly structure of the first tin pool, the second tin pool, the upper tin assembly and the tin scraping assembly in the tin immersion device described in the present application.

[0016] Figure 3 is a top view of the assembly structure of the first tin pool, the second tin pool, the upper tin assembly and the tin scraping assembly in the tin immersion device described in the present application.

[0017] Figure 4 is a plane view of the overall assembly structure of the tin immersion device described in the present application.

[0018] Figure 5 is a perspective view of the tin scraping assembly in the tin immersion device described in the present application.

[0019] Figure 6 is a perspective view of the first tin pool in the tin immersion device described in the present application.

[0020] Figure 7 is a perspective view of the tin scraping part provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] The present application will be further described below in conjunction with the accompanying drawings and embodiments. It is particularly pointed out that the following embodiments are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following embodiments are only some embodiments of the present application, but not all embodiments of the present application, and all other embodiments obtained by those skilled in the art without any creative effort are within the protection scope of the present application.

[0022] In the present application, the term “embodiment” means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application can be combined with other embodiments.

[0023] The present application provides a tin immersion device for realizing automatic tin immersion operation on a workpiece and ensuring the consistency of the tin immersion amount of the workpiece in each tin immersion operation, so as to improve the yield of the production line.

[0024] Referring to Figure 1 and Figure 4 In an embodiment, the tin dipping device can include a first tin pool 1, a second tin pool 2, a tin scraping assembly 3, a tin applying assembly 4, a circulation assembly 5, and a grabbing assembly 6.

[0025] In detail, the circulation assembly 5 can be provided with a tin storage portion 51, an output portion 52, and a return portion 53. The tin storage portion 51 is connected between the output portion 52 and the return portion 53, and can be used to store tin liquid. In some embodiments, the tin storage portion 51 can be provided with an inlet for adding tin liquid. In addition, in some embodiments, the tin storage portion 51 can also be provided with a circulation pump, through which the tin liquid can be easily transmitted to the first tin pool 1 through the output portion 52, and can be transmitted from the second tin pool 2 to the tin storage portion 51 through the return portion 53, to achieve the circulation use of the tin liquid and avoid the waste of the tin liquid. The circulation assembly 5 can be integrally formed with the first tin pool 1 and the second tin pool 2, or can be detachably assembled with the first tin pool 1 and the second tin pool 2, which is not limited herein. The connection mode of the output portion 52 and the first tin pool 1 can be pipe connection, and similarly, the connection mode of the return portion 53 and the second tin pool 2 can also be pipe connection. It can be understood that the tin storage portion 51 can be provided with a heating portion (not shown in the figure) to continuously output heat to the tin liquid, to avoid the increase in viscosity / solidification of the tin liquid. In an embodiment, the pipe connecting the first tin pool 1, the second tin pool 2, and the tin storage portion can be configured as a heat insulation pipe to weaken the heat exchange between the tin liquid and the air during the transmission of the tin liquid in the pipe, to avoid the increase in viscosity / solidification of the tin liquid in the pipe, so that efficient circulation transmission of the tin liquid can be achieved. It can be understood that the first tin pool 1, the second tin pool 2, the tin scraping assembly 3, and / or the tin applying assembly 4 can also be provided with a heating portion to heat the tin liquid in the circulation assembly, the first tin pool, the second tin pool, the tin scraping assembly, and / or the tin applying assembly, to avoid the increase in viscosity / solidification of the tin liquid. Among them, the first tin pool 1, the second tin pool 2, the tin scraping assembly 3, and / or the tin applying assembly 4 can also be provided with a heating portion, which means that in some embodiments, any one or more of the first tin pool 1, the second tin pool 2, the tin scraping assembly 3, and the tin applying assembly 4 can be provided with a heating portion.

[0026] For example, the first tin pool 1 can be provided with a first convex outlet 11 for connecting with the pipeline of the output portion 52, and the second tin pool 2 can also be provided with a second convex outlet 21 for connecting with the pipeline of the return portion 53. The second tin pool 2 is arranged below the first tin pool 1 and is connected with the first tin pool 1. The first tin pool 1 can be provided with a first tank body 12 for containing the tin liquid, and the second tin pool 2 can be provided with a second tank body 22 for containing the tin liquid. The first tank body 12 and the second tank body 22 can be a cuboid, a cylinder or a circular truncated cone, which is not limited herein. The first tank body 12 and the second tank body 22 each have a bottom wall and a side wall. It can be understood that, for the purpose of description, the bottom wall and the side wall of the first tank body 12 are the bottom wall and the side wall of the first tin pool 1, and the bottom wall and the side wall of the second tank body 22 are the bottom wall and the side wall of the second tin pool 2. In an embodiment, the first convex outlet 11 can be arranged on the side wall of the first tin pool 1, and the second convex outlet 21 can be arranged on the side wall of the second tin pool 2.

[0027] In the embodiments of the present application, the first tin pool 1 and the second tin pool 2 are horizontally arranged, and the bottom walls of the first tin pool 1 and the second tin pool 2 are parallel to the horizontal plane. It should be noted that the horizontal plane refers to the plane formed by the completely stationary water, and also refers to the plane parallel to the plane.

[0028] During the tin immersion operation, the tin liquid is continuously transmitted to the first tin pool 1 through the pipeline of the output portion 52 to ensure the flowability of the tin liquid in the first tin pool 1, so that the tin liquid is in a state of low viscosity. In the embodiments of the present application, the projection of the first tin pool 1 on the horizontal plane completely falls into the projection of the second tin pool 2 on the horizontal plane, so that the overflowing tin liquid in the first tin pool 1 flows from the first tin pool 1 to the second tin pool 2, avoiding the waste of the tin liquid overflowing from the first tin pool 1. The tin liquid in the second tin pool 2 is transmitted to the tin storage portion 51 through the return portion 53 during the tin immersion operation, realizing the circulation of the tin liquid and avoiding the viscosity of the tin liquid rising / solidifying to affect the workpiece tin immersion. In addition, the first tin pool 1 and the second tin pool 2 can each be provided with a heating portion (not shown in the figure) to continuously output heat to the tin liquid, avoiding the viscosity of the tin liquid rising / solidifying to affect the workpiece tin immersion.

[0029] It should be noted that the liquid surface of the tin liquid in the first tin pool 1 in contact with the air will solidify to form a tin film, which will make it difficult to ensure the consistency of the tin immersion amount of the workpiece during the tin immersion operation. Therefore, a tin scraping assembly 3 can be arranged to scrape off the tin film on the surface of the tin liquid in the first tin pool 1, so that the workpiece can directly contact the tin liquid during the tin immersion operation. It should be understood that the tin scraping assembly 3 can also be provided with a heating portion (not shown in the figure) to ensure that the interface between the tin scraping assembly 3 and the tin liquid does not directly appear solidified tin liquid, thereby improving the tin scraping effect.

[0030] In the embodiments of the present application, the upper tin assembly 4 can include an upper tin part 41 and a first driving part 42. The upper tin part 41 can include a tin bowl 411 and a connecting rod 412. The tin bowl 411 has a first position and a second position relative to the first tin pool 1. When the tin bowl 411 is in the first position, the tin bowl 411 is completely immersed in the tin liquid of the first tin pool 1. When the tin bowl 411 is in the second position, the tin bowl 411 is away from the surface of the tin liquid of the first tin pool 1 and has a first distance. The first driving part 42 is connected with the connecting rod 412 and is used to drive the tin bowl 411 to switch between the first position and the second position. In addition, the tin bowl 411 of the upper tin assembly 4 can also be provided with a heating part (not shown in the figure) to continuously output heat to the tin liquid to avoid the viscosity of the tin liquid rising / solidifying.

[0031] It can be understood that the grabbing assembly 6 is configured to grab the workpiece to be immersed in tin. When the tin bowl 411 is in the second position, the grabbing assembly 6 drives the workpiece to be immersed in tin to the second position to complete the immersion tin operation in the tin bowl 411.

[0032] When the first tin pool 1, the second tin pool 2, the tin scraping assembly 3, the upper tin assembly 4, the circulating assembly 5 and the grabbing assembly 6 are assembled together to form the immersion tin device, first, the heating parts (not shown in the figure) of each assembly are started. After preheating is completed, the tin liquid is added to the storage tin part 51 of the circulating assembly 5. Subsequently, the circulating pump is started to make the tin liquid in the storage tin part 51 be transmitted to the first tin pool 1 through the output part 52. In the initial state, the tin bowl 411 of the upper tin assembly 4 is placed in the first position. After the tin liquid in the first tin pool 1 is filled, the overflowing tin liquid will flow to the second tin pool 2. The excess tin liquid is transmitted to the storage tin part 51 through the input part 53 to realize the recycling of the tin liquid and avoid waste. When the tin liquid circulation is stable, that is, when the liquid level of the tin liquid in the first tin pool 1 and the second tin pool 2 keeps dynamic balance, the tin scraping assembly 3 performs a tin scraping operation to scrape the tin film on the surface of the first tin pool 1. Then, the first driving part 42 drives the upper tin part 41 to move to make the tin bowl 411 move to the second position. Further, the grabbing assembly 6 grabs the workpiece to be immersed in tin to the second position to perform an immersion tin operation. After that, the first driving part 42 drives the upper tin part 41 to move to make the tin bowl 411 return to the first position. After the tin liquid circulation is stable, the next round of work can be performed. The cycle is repeated. For each immersion tin operation, before the tin bowl 411 moves from the first position to the second position, the tin scraping assembly 3 will perform a tin scraping operation to scrape the tin film on the surface of the first tin pool 1 so that there is no tin film on the surface of the tin liquid of the tin bowl 411 in the second position. In addition, for each immersion tin operation, the tin bowl 411 is completely immersed in the first tin pool 1 when in the first position. Therefore, after the tin bowl 411 moves from the first position to the second position, the liquid level of the tin liquid in the tin bowl 411 can keep consistent. It can be understood that the consistency of the height here refers to the consistency of the distance of the liquid level of the tin liquid relative to the top of the side wall of the tin bowl 411, so as to ensure that the immersion tin amount of the workpiece after each immersion tin operation is consistent.

[0033] In an embodiment, the first driving part 42 of the upper tin assembly 4 can drive the upper tin part 41 to move in a rotating or translational manner, which is not limited herein. Preferably, the first driving part 42 of the upper tin assembly 4 is configured to drive the tin bowl 411 to move up and down in a vertical direction, so that the tin liquid in the tin bowl 411 is not easy to spill during the movement, and further, the tin bowl 411 is in a state of being filled with tin liquid and the tin liquid surface being free of tin film when the tin bowl 411 is in the second position, thereby ensuring that the height of the tin liquid in the tin bowl 411 remains consistent to improve the consistency of each tin immersion operation.

[0034] Referring to Figure 1 , Figure 4 and Figure 5 , in an embodiment, the tin scraping assembly 3 can include a tin scraping part 31 and a second driving part 32, and the tin scraping part 31 is connected to the second driving part 32. For example, the tin scraping part 31 can be configured as a plate-shaped structure having an angle (e.g., 5-30°) relative to the horizontal plane, which is used to scrape the tin film on the surface of the first tin pool 1 during the movement, or the tin scraping part 31 can also be configured as a plate-shaped structure having a main body part 311 parallel to the horizontal plane and a flange 312 arranged at the end of the main body part, which is used to scrape the tin film on the surface of the first tin pool 1 during the movement. It can be understood that the tin scraping part 31 can achieve the function of scraping the tin film, and its structure is not limited herein. The tin scraping part 31 has a third position and a fourth position relative to the first tin pool 1. When the tin scraping part 31 is in the third position, the projection of the tin scraping part 31 on the horizontal plane has the smallest overlapping area with the projection of the first tin pool 1 on the horizontal plane, i.e., the tin scraping part 31 is in an initial state before performing the tin scraping operation. When the tin scraping part 31 is in the fourth position, the projection of the tin scraping part 31 on the horizontal plane has the largest overlapping area with the projection of the first tin pool 1 on the horizontal plane, i.e., the tin scraping part 31 is in a completed state after performing the tin scraping operation. For example, for one tin scraping operation, the second driving part 32 first drives the tin scraping part 31 to move from the third position to the fourth position, so that the tin scraping assembly 3 scrapes the tin film on the surface of the first tin pool 1, and then the second driving part 32 drives the tin scraping part 31 to move from the fourth position to the third position, so that the tin scraping part 31 returns to the initial state and is ready for use, while reserving space for the movement of the tin bowl 411 between the first position and the second position to avoid interference between the tin bowl 411 and the tin scraping part 31.

[0035] For example, during the switching of the tin scraping part 31 between the third position and the fourth position, the tin scraping part 31 and the upper tin part 41 do not interfere with each other, thereby avoiding mutual collision between the tin scraping part 31 and the upper tin part 41 to affect the service life of the device. In an embodiment, referring to Figure 7The connecting rod 412 of the tin feeding part 41 can include a first connecting section 4121 and a second connecting section 4122, the first connecting section 4121 is connected with the tin bowl 411 and the second connecting section 4122, the second connecting section 4122 is connected with the first connecting section 4121 and the first driving part 42, the first connecting section 4121 is at least partially configured as a straight rod section, which is parallel to the sidewall of the first tin pool 1 and is less than 5mm away from the sidewall of the first tin pool 1, so as to maximize the avoidance of the interference between the connecting rod 412 and the tin scraping part 31, so that the tin scraping part 31 can be made large enough, thereby improving the tin scraping effect and improving the device tin immersion yield.

[0036] In an embodiment, the first tin pool 1 and the second tin pool 2 can each be a groove body with one end open, the sidewall of the first tin pool 1 and the second tin pool 2 towards the end of the opening is the sidewall top, during operation, the openings of the first tin pool 1 and the second tin pool 2 are both towards the vertically upward direction, at this time, the sidewall top of the first tin pool 1 has a point with the shortest distance from the bottom wall of the second tin pool 2, which can be defined as the lowest point of the sidewall top of the first tin pool 1, i.e., the lowest point of the first tin pool 1 from which the tin liquid overflowing from the first tin pool 1 will flow out, similarly, the sidewall top of the second tin pool 2 has a point with the shortest distance from the bottom wall of the second tin pool 2, which can be defined as the lowest point of the sidewall top of the second tin pool 2, i.e., the lowest point of the second tin pool 2 from which the tin liquid overflowing from the second tin pool 2 will flow out. It can be understood that the lowest point of the sidewall top of the first tin pool 1 can be higher than the lowest point of the sidewall top of the second tin pool 2, so as to ensure that the tin liquid overflowing from the first tin pool 1 can flow to the second tin pool, while avoiding the tin liquid of the second tin pool 2 flowing back to the first tin pool 1.

[0037] Referring to Figure 1 , Figure 4 and Figure 6 , in an embodiment, the bottom of the first tin pool 1 can also be provided with a foot stand 13, the foot stand 13 is provided with at least three and has the same length, the end of the foot stand 13 away from the first tin pool 1 is connected to the bottom wall of the second tin pool 2, so that the first tin pool 1 can be horizontally arranged above the second tin pool 2, further ensuring that the lowest point of the sidewall top of the first tin pool 1 is higher than the lowest point of the sidewall top of the second tin pool 2, in addition, compared with the scheme that the bottom wall of the first tin pool 1 directly abuts against the bottom wall of the second tin pool 2, the arrangement of the foot stand 13 for arranging the first tin pool above the second tin pool 2 can increase the volume of the second tin pool 2 for the tin liquid.

[0038] In an embodiment, referring to Figure 7, tin bowl 411 can be configured as an open-ended cuboid groove, when the tin bowl 411 is in the first position, the bottom wall of the tin bowl 411 is parallel to the horizontal plane, further, the tin bowl 411 is driven by the first driving part 42 to move upward in the vertical direction from the first position to the second position, when the tin bowl 411 is in the second position, the bottom surface of the tin bowl 411 is also parallel to the horizontal plane, in this way, it can be ensured that the tin liquid level in the tin bowl 411 is everywhere at the same height, thereby improving the yield of the tin immersion operation.

[0039] The above only describes some embodiments of the present application, and does not limit the protection scope of the present application, any equivalent device or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A tin immersion apparatus characterized by comprising: The immersion tin device comprises: a first tin pool for containing tin liquid; a tin scraping assembly for scraping tin film on the surface of the tin liquid in the first tin pool; a tin feeding assembly, which is provided with a tin feeding part and a first driving part, and the tin feeding part comprises a connecting rod and a tin bowl connected with the connecting rod; the tin bowl has a first position and a second position relative to the first tin pool, in the first position, the tin bowl is completely immersed in the tin liquid of the first tin pool, in the second position, the tin bowl is away from the surface of the tin liquid of the first tin pool and has a first distance; the first driving part is connected with the connecting rod for driving the tin bowl connected with the connecting rod to switch between the first position and the second position; a grabbing assembly for grabbing a workpiece and driving the workpiece into the tin bowl in the second position for tin immersion operation.

2. The immersion tin device according to claim 1, wherein the immersion tin device further comprises a second tin pool and a circulating assembly, the circulating assembly is provided with a tin storage part, an output part and a return part, and the tin storage part is connected between the output part and the return part; the second tin pool is arranged below the first tin pool and connected with the first tin pool, and the horizontal projection of the first tin pool completely falls into the second tin pool; the first tin pool is connected with the output part, and the second tin pool is connected with the return part.

3. The immersion tin device according to claim 1, wherein the first driving part is configured to drive the tin bowl to move up and down in the vertical direction.

4. The immersion tin device according to claim 1 or 2, wherein the tin scraping assembly comprises a tin scraping part and a second driving part, the tin scraping part has a third position and a fourth position relative to the first tin pool, in the third position, the horizontal projection of the tin scraping part has the minimum overlapping area with the horizontal projection of the first tin pool, in the fourth position, the horizontal projection of the tin scraping part has the maximum overlapping area with the horizontal projection of the first tin pool; the second driving part is connected with the tin scraping part and used for driving the tin scraping part to switch between the third position and the fourth position, so that the tin scraping assembly scrapes the tin film on the surface of the first tin pool; in the fourth position, the horizontal projection of the tin bowl completely falls into the horizontal projection of the tin scraping part.

5. The immersion tin device according to claim 2, wherein the lowest point of the top of the side wall of the first tin pool is higher than the lowest point of the top of the side wall of the second tin pool.

6. The immersion tin device according to claim 2 or 5, wherein the bottom of the first tin pool is provided with a foot support; one end of the foot support away from the first tin pool is connected to the bottom wall of the second tin pool.

7. The immersion tin device according to claim 1, wherein the connecting rod comprises a first connecting segment and a second connecting segment, the first connecting segment is connected with the tin bowl and the second connecting segment, and the second connecting segment is connected with the first connecting segment and the first driving part. The first connecting section is at least partially configured as a straight rod section, which is parallel to a side wall of the first tin bath, and the distance between the straight rod section and the side wall of the first tin bath is less than 5 mm.

8. The tin dipping device according to claim 1 or 7, characterized in that, The tin bowl is configured as an open-ended cuboid groove, and in the first position and the second position, the bottom surface of the cuboid groove is parallel to the horizontal plane.

9. The tin dipping device according to claim 2, characterized in that, The circulating assembly, the first tin bath, the second tin bath, the tin scraping assembly and / or the tin applying assembly are each provided with a heating portion for heating the tin liquid in the circulating assembly, the first tin bath, the second tin bath, the tin scraping assembly and / or the tin applying assembly.

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