Heating device for plating assisting tank

Abstract

The utility model relates to the technical field of auxiliary equipment of plating assisting tanks, in particular to a plating assisting tank heating device which comprises a heating device body, and the heating device body comprises a U-shaped structural body and a heating pipe arranged in the structural body; the buffer device comprises a first buffer plate and a second buffer plate, the first buffer plate protrudes and is connected to the surface of the structural body, the second buffer plate is arranged on the other surface of the structural body, the second buffer plate abuts against the plating assisting pool, and the surface, facing the other wall face of the plating assisting pool, of the first buffer plate is in an arc shape. When a workpiece collides with the heating device, the arc-shaped surface of the first buffer plate deviates and collides with the workpiece, collision energy is reduced, and meanwhile the first buffer plate absorbs part of collision energy. And the second buffer plate prevents the heating device from moving, so that the heating device is protected and stabilized. The heating device has the effect of buffering impact and damage caused by workpiece collision to the heating device.

Description

A heating device for plating bath Technical Field

[0001] This application relates to the field of auxiliary equipment for plating baths, and in particular to a heating device for plating baths. Background Technology

[0002] Solvent-assisted plating is a crucial step in hot-dip galvanizing technology. It activates and purifies the workpiece surface, improving coating quality. Simultaneously, the flux deposits a salt film on the workpiece surface, isolating it from air and preventing oxidation. The temperature of the flux solution should ideally be controlled between 60℃ and 80℃. Within this temperature range, the flux and workpiece wett each other more fully, enhancing activation and purification effects. Below 60℃, the flux salt film on the workpiece surface is less uniform, resulting in poorer purification. Above 80℃, the flux salt film becomes too thick, increasing production losses.

[0003] In the prior art, the plating bath is often maintained at a suitable temperature for the plating flux by a heating device. The heating device is usually installed at both ends or the bottom of the plating bath. However, when placing workpieces, especially large workpieces, they need to be hoisted into the bath. Due to the workpieces floating and moving in the bath or operator errors during hoisting, the workpieces collide with the heating device, causing damage to the heating device, thereby affecting the heating effect and the plating process.

[0004] utility model

[0005] This application provides a heating device for a fluxing bath, which buffers the collision between the heating device and the workpiece, thus preventing damage caused by accidental collision.

[0006] The plating bath heating device provided in this application adopts the following technical solution:

[0007] The heating device includes a U-shaped structure and a heating tube disposed inside the structure; and

[0008] The buffer device includes a first buffer plate protruding from and connected to one end face of the structure and a second buffer plate connected to the other end face of the structure. The second buffer plate abuts against the plating bath, and the surface of the first buffer plate facing the other wall of the plating bath is arc-shaped.

[0009] By adopting the above technical solution, the heating device achieves heating of the flux; the buffer device protects the heating device. When the heating device is hit by a floating workpiece during operation, the buffer device reduces the instantaneous impact of the collision between the heating device and the workpiece, as well as the interaction with the side wall of the flux bath, thus preventing the heating device from being damaged by the collision.

[0010] Optionally, the structure has multiple elastic elements fixed to the surface of the first buffer plate, and the elastic elements are connected to the first buffer plate so that the first buffer plate is spaced apart from the structure.

[0011] By adopting the above technical solution, the structure provides an installation frame and protection for the heating tube; the elastic element connects the structure and the first buffer plate, and at the same time, the elastic element converts the energy during the collision process into elastic potential energy, reducing the impact of the collision on the structure.

[0012] Optionally, the first buffer plate includes a first elastic sheet and a corrosion-resistant protective layer covering the first elastic sheet, the surface of the corrosion-resistant protective layer being arc-shaped; the second buffer plate includes a second elastic sheet, the surface of which is covered with a corrosion-resistant film; and protective plates are fixed on both sides of the structure.

[0013] By adopting the above technical solution, the first elastic sheet inside the first buffer plate converts the energy during the collision process into elastic potential energy and then slowly releases it, achieving a buffering effect. The first elastic sheet is wrapped by the corrosion-resistant protective layer, which prevents the first elastic sheet from reacting with the flux and also prevents severe deformation when colliding with the workpiece, thus extending the service life of the first buffer plate. One end of the corrosion-resistant protective layer is arc-shaped, which deflects the direction of the workpiece's movement during the collision, thereby reducing the instantaneous impact of the collision. The second buffer plate abuts against the side wall of the fluxing bath, and the second elastic sheet further reduces the collision energy, preventing the structure from being damaged by direct collision with the side wall of the fluxing bath. The corrosion-resistant film layer prevents the second elastic sheet from reacting with the flux. The protective plate prevents the structure from being damaged by direct collision with the side wall of the fluxing bath or the workpiece.

[0014] Optionally, the heating tube has a disc-shaped structure, and the plating bath heating device further includes a turbulence device that enables the heat generated by the heating tube to be transferred to the plating bath. The turbulence device is alternately arranged with the heating tube; the surface of the structure is provided with a heat exchange grid.

[0015] By adopting the above technical solution, the heating tube increases the contact surface area with the flux through the disc structure, the turbulence device promotes the convective movement of the flux, and the heat exchange grid realizes the fluid exchange between the heating device and the flux in the fluxing bath, thereby achieving the effect of improving heat exchange efficiency and promoting heat exchange.

[0016] Optionally, the turbulence device includes an outer frame, guide posts fixed at opposite ends of the outer frame, a turbulence component slidably connected to the guide posts, and a drive component fixed to the turbulence component. The guide posts extend along the direction of the heating pipe and are staggered between the heating pipes. The drive component is configured to drive the turbulence component to move along the guide posts to achieve turbulence.

[0017] By adopting the above technical solution, the driving component drives the turbulence component to move along the guide column. The turbulence component drives the hot flux around the heating tube to move and promotes the exchange of heat with the cold flux away from the heating tube, thereby achieving the effect of rapidly increasing the temperature of the flux.

[0018] Optionally, the guide post is a hollow structure with one end open, and the driving component is a magnet and a plurality of parallel and sequentially spaced electromagnet groups disposed inside the guide post. The electromagnet groups are connected to an external power source, and the plurality of electromagnet groups can be independently energized so that their magnetism is opposite to that of the magnet.

[0019] By adopting the above technical solution, the driving component includes a magnet fixed to the deflector and a plurality of parallel and sequentially spaced electromagnet groups disposed inside the guide post. By sequentially and independently energizing the electromagnet groups along the direction of the guide post, a magnetism opposite to that of the magnet is generated, driving the deflector to move toward the energized electromagnet groups.

[0020] Optionally, the width of the first buffer plate is smaller than the width of the structure.

[0021] By adopting the above technical solution, the first buffer plate plays a buffering role while reducing the impact on the heat exchange efficiency of the heating device.

[0022] Optionally, the heat exchange grid includes a first grid located near the top of the fluxing bath and a second grid near the bottom of the fluxing bath, wherein the first grid is a non-tapered geometric through-hole and the second grid is a tapered geometric through-hole.

[0023] By adopting the above technical solution, the first grid has no taper, which enables a large amount of flux exchange between the inside and outside of the heating device; the second grid has a taper, which enables the flux outside the heating device to enter the inside of the heating device at a higher flow rate, promoting the heat exchange of the flux.

[0024] Optionally, the heating tube extends from both ends of the structure and is connected to a water-saving valve; a temperature sensor is provided on the surface of the structure; a display is provided on one side of the structure, and the display is connected to the temperature sensor.

[0025] By adopting the above technical solution, the temperature sensor monitors the temperature of the flux and provides feedback to the operator through the display. The operator can then adjust the water-saving valve to control and regulate the temperature of the flux bath.

[0026] Optionally, the end face of the structure is provided with a fixing frame, the fixing frame is U-shaped, and the fixing frame is snapped into the side wall of the plating bath.

[0027] By adopting the above technical solution, the fixing frame enables the heating device to be conveniently installed and removed from the plating bath, thereby allowing the heating device to be easily put into the plating process and maintained.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. The buffer device provides buffer protection for the heating device, preventing damage caused by workpiece collision;

[0030] 2. The heating device achieves rapid heating of the flux through the disc-shaped structure of the heating tube, the flow-dispersing device interleaved with the heating tube, and the heat exchange grid provided on the surface of the structure and the protective plate;

[0031] 3. The drive unit and the heating device are connected by the baffle and the fixing frame to the side wall of the plating bath, so that the heating device can be easily installed and removed from the plating bath, and can also be easily inspected and maintained. Attached Figure Description

[0032] Figure 1 is a schematic diagram of a plating bath heating device according to one embodiment of this application.

[0033] Figure 2 is a schematic diagram of the structure of a plating bath heating device according to one embodiment of this application.

[0034] Figure 3 is an exploded view of a plating bath heating device according to one embodiment of this application.

[0035] Figure 4 is a front view of a plating bath heating device according to an embodiment of this application.

[0036] Figure 5 is a cross-sectional view of AA in Figure 4.

[0037] Figure 6 is a magnified view of part A in Figure 5.

[0038] Figure 7 is a schematic diagram of the structure in one embodiment of this application.

[0039] Figure 8 is a partial structural diagram of a plating bath heating device according to one embodiment of this application.

[0040] Figure 9 is a magnified view of part B in Figure 8.

[0041] Figure 10 is a front view of the turbulence device according to one embodiment of this application.

[0042] Figure 11 is a cross-sectional view of BB in Figure 10.

[0043] Explanation of reference numerals in the attached figures:

[0044] 1. Heating device; 11. Structure; 12. Heating tube; 13. Heat exchange grid; 131. First grid; 132. Second grid; 14. Protective plate; 15. Water-saving valve; 16. Display; 17. Temperature sensor; 18. Fixing frame; 19. Baffle device; 191. Guide column; 192. Driving component; 1921. Magnet; 1922. Electromagnet assembly; 193. Baffle component; 2. Buffer device; 21. First buffer plate; 211. First elastic sheet; 212. Corrosion-resistant protective layer; 22. Second buffer plate; 221. Second elastic sheet; 222. Corrosion-resistant film layer; 23. Elastic component. Detailed Implementation

[0045] The present application will be further described in detail below with reference to all the accompanying drawings.

[0046] This application discloses a heating device for a plating bath.

[0047] Please refer to Figures 1-9. A plating bath heating device includes a heating device 1 and a buffer device 2 connected to the surface of the heating device 1.

[0048] Please refer to Figures 2-6. The heating device 1 includes a U-shaped structure 11 and a heating tube 12 disposed inside the structure 11.

[0049] More specifically, the structure 11 accommodates the heating tube 12, which has a disc-shaped structure. An elastic element 23 is fixed on the surface of the structure 11. The elastic element 23 is connected to the first buffer plate 21. The first buffer plate 21 includes a first elastic sheet 211 disposed inside and a corrosion-resistant protective layer 212 covering the first elastic sheet 211. The surface of the corrosion-resistant protective layer 212 facing the other wall of the plating bath is arc-shaped, and the other surface is connected to the elastic element 23.

[0050] A second buffer plate 22 is fixed to the other surface of the structure 11. The second buffer plate 22 abuts against the side wall of the plating bath. The second buffer plate 22 includes a second elastic sheet 221. A corrosion-resistant film layer 222 is formed on the surface of the second elastic sheet 221.

[0051] In this embodiment, the first elastic sheet 211 and the second elastic sheet 221 are made of silicone, for example, and the corrosion-resistant protective layer 212 and the corrosion-resistant film layer 222 can be polytetrafluoroethylene (PTFE) coatings. PTFE coatings are resistant to strong acids and alkalis, have a low coefficient of friction (μ≈0.05), and can effectively reduce workpiece scratches; their operating temperature is between -200℃ and +260℃, making them suitable for plating bath environments.

[0052] When the heating device of the plating bath is impacted by a workpiece, the arc-shaped surface of the corrosion-resistant protective layer 212 causes the workpiece to deviate from its original direction of movement, thereby reducing the impact energy; the first elastic sheet 211 absorbs part of the impact energy and converts it into elastic potential energy, which is slowly released, thereby reducing the impact energy transmitted to the heating device 1; the elastic element 23 also absorbs part of the impact energy, further reducing the impact energy received by the heating device 1, so that the first buffer plate 21 and the elastic element 23 act as a buffer for the heating device 1; the heating device 1, after receiving the buffered impact energy, will move towards the side wall of the plating bath, and the second buffer plate 22 prevents the heating device 1 from moving, absorbs its kinetic energy, and avoids the heating device 1 from colliding with the side wall of the plating bath, thereby protecting and stabilizing the heating device 1.

[0053] The structure 11 has fixed protective plates 14 on both sides to prevent the heating tube 12 from directly colliding with the side wall of the plating bath and to prevent the heating tube 12 from being impacted by the workpiece after the offset movement direction. The upper end of the structure 11 is provided with a fixing frame 18, which is U-shaped and used to clamp the side wall of the plating bath, so that the plating bath heating device can be easily disassembled and installed on the side wall of the plating bath.

[0054] The heating tube 12 extends from both ends of the upper surface of the structure 11. Water-saving valves 15 are connected to both ends of the heating tube 12, and circulating hot water flows through it. A temperature sensor 17 is installed on the surface of the structure 11. A display 16 is installed on one side of the structure 11, and the display 16 is connected to the temperature sensor 17. The temperature sensor 17 monitors the temperature of the flux bath to be heated in real time and provides timely feedback to the operator via the display 16. When the flux temperature deviates from the working temperature, the operator controls the flow rate of the circulating hot water in the heating tube 12 through the water-saving valves 15 to change the heat exchange between the heating tube 12 and the flux, thereby controlling the temperature of the flux bath to be heated.

[0055] Referring to Figures 7-8, the surfaces of the structure 11 and the protective plate 14 are provided with heat exchange grids 13. The heat exchange grids 13 include a first grid 131 and a second grid 132. The first grid 131 is a geometrically through-hole without taper, and the second grid 132 is a geometrically through-hole with taper. The first grid 131 has no taper, enabling a large-scale exchange of flux inside and outside the heating device 1. The second grid 132 has a taper, allowing the flux outside the heating device 1 to enter the heating device 1 at a higher flow rate, promoting heat exchange of the flux. The high-temperature flux inside the heating device 1 and the low-temperature flux outside can exchange heat, forming fluid movement, thereby heating the flux in the plating bath more uniformly.

[0056] Please refer to Figures 8-11. The turbulence device 19 includes an outer frame, guide posts 191 fixed at opposite ends of the outer frame, a turbulence component 193 slidably connected to the guide posts 191, and a drive component 192 fixed to the turbulence component 193.

[0057] The guide posts 191 extend along the direction of the heating tubes 12 and are staggered between the heating tubes 12. The driving member 192 is configured to drive the flow-disrupting member 193 to move along the guide posts 191 to achieve flow disturbance. The guide posts 191 are hollow structures with one end open.

[0058] The driving component 192 includes a magnet 1921 and multiple parallel and sequentially spaced electromagnet groups 1922 disposed inside the guide post 191. Each electromagnet group 1922 is connected to an external power source, and each electromagnet group 1922 can be independently energized and controlled. When energized, each electromagnet group 1922 has a magnetic field opposite to that of the magnet 1921. The flow-dispersing component 193 is an annular body slidably connected to the guide post 191. Since the magnet 1921 is fixed to the flow-dispersing component 193, when no electromagnet group 1922 is energized, the flow-dispersing component 193 descends along the guide post 191 to the bottom of the fluxing bath under gravity. When the electromagnet groups 1922 are sequentially energized from near the bottom to away from the bottom, the flow-dispersing component 193 is gradually raised under magnetic influence, disturbing the fluxing solution during the ascent and transferring heat from areas of high local temperature to areas of low local temperature.

[0059] The spoiler 193 is snapped onto the drive component 192, enabling the spoiler 193 to be easily installed and removed from the drive component 192, and facilitating the replacement and maintenance of the spoiler 193.

[0060] The implementation principle of the plating bath heating device in this application embodiment is as follows: When the workpiece collides with the plating bath heating device, the workpiece first collides with the first buffer plate 21. The first buffer plate 21 has an arc at the end where it collides with the workpiece, thereby causing the workpiece to deviate from its direction of movement and reducing the collision energy. The first buffer plate 21 is provided with the first elastic sheet 211 inside, which absorbs part of the collision energy. The first buffer plate 21 is connected to the heating device 1 through an elastic element 23, which also absorbs the collision energy. Thus, the collision energy transmitted to the heating device 1 is reduced, and the heating device 1 will not be damaged.

[0061] The heating device 1, having conducted collision energy, will move toward the side wall of the plating bath. Since the second buffer plate 22 is fixed to the other end face of the heating device 1 and abuts against the side wall of the plating bath, the second elastic sheet 221 absorbs part of the collision energy of the heating device 1 and is reacted by the side wall of the plating bath, thereby preventing the heating device 1 from moving, thus stabilizing and protecting the heating device 1.

[0062] The temperature sensor 17 monitors the temperature of the flux and feeds it back to the display 16. The temperature of the flux is controlled by adjusting the water-saving valve 15. The surface of the structure 11 and the protective plate 14 is provided with a heat exchange grid 13. The heat exchange grid 13 causes the flux to move in a fluid motion. The turbulence device 19 disturbs the surrounding flux through the movement of the turbulence element 193, thereby strengthening the fluid motion and improving the heat exchange efficiency.

[0063] 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 heating device for an auxiliary plating bath, characterized in that, include: Heating device (1) includes a U-shaped structure (11) and a heating tube (12) disposed inside the structure (11); and buffer device (2) includes a first buffer plate (21) protruding and connected to the surface of the structure (11) and a second buffer plate (22) disposed on the other surface of the structure (11), the second buffer plate (22) abutting against the plating bath, and the surface of the first buffer plate (21) facing the other wall of the plating bath is arc-shaped.

2. The plating bath heating device according to claim 1, characterized in that: The structure (11) has a plurality of elastic elements (23) fixed on the surface of the first buffer plate (21), and the elastic elements (23) are connected to the first buffer plate (21) so that the first buffer plate (21) and the structure (11) are spaced apart.

3. The plating bath heating device according to claim 1, characterized in that: The first buffer plate (21) includes a first elastic sheet (211) and a corrosion-resistant protective layer (212) covering the first elastic sheet (211), the surface of the corrosion-resistant protective layer (212) is arc-shaped; the second buffer plate (22) includes a second elastic sheet (221), the surface of the second elastic sheet (221) is formed with a corrosion-resistant film layer (222); the structure (11) has protective plates (14) fixed on both sides.

4. The plating bath heating device according to claim 3, characterized in that: The heating tube (12) has a disc-shaped structure. The plating bath heating device also includes a turbulence device (19) that can transfer the heat generated by the heating tube (12) to the plating bath. The turbulence device (19) and the heating tube (12) are arranged alternately. The surface of the structure (11) is provided with a heat exchange grid (13).

5. The plating bath heating device according to claim 4, characterized in that: The turbulence device (19) includes an outer frame, guide posts (191) fixed at opposite ends of the outer frame, a turbulence element (193) slidably connected to the guide posts (191), and a drive element (192) fixed to the turbulence element (193). The guide posts (191) extend along the direction of the heating tubes (12) and are alternately arranged between the heating tubes (12). The drive element (192) is configured to drive the turbulence element (193) to move along the guide posts (191) to achieve turbulence.

6. The plating bath heating device according to claim 5, characterized in that: The guide post (191) is a hollow structure with one end open. The driving component (192) is a magnet (1921) and a plurality of parallel and sequentially spaced electromagnet groups (1922) disposed inside the guide post (191). The electromagnet groups (1922) are connected to an external power source. The plurality of electromagnet groups (1922) can be energized independently so that their magnetism is opposite to that of the magnet (1921).

7. The plating bath heating device according to claim 1, characterized in that: The width of the first buffer plate (21) is smaller than the width of the structure (11).

8. The plating bath heating device according to claim 4, characterized in that: The heat exchange grid (13) includes a first grid (131) located near the top of the fluxing bath and a second grid (132) near the bottom of the fluxing bath. The first grid (131) is a non-tapered geometric through hole, and the second grid (132) is a tapered geometric through hole.

9. The plating bath heating device according to claim 1, characterized in that: The heating tube (12) extends from both ends of the end face of the structure (11) and is connected to the water-saving valve (15); a temperature sensor (17) is provided on the surface of the structure (11); a display (16) is provided on one side of the structure (11), and the display (16) is connected to the temperature sensor (17).

10. A heating device for a plating bath according to any one of claims 1-9, characterized in that: The end face of the structure (11) is provided with a fixing frame (18), which is U-shaped and is snapped onto the side wall of the plating bath.

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