Stainless steel cold-rolled annealed component

Abstract

This utility model provides a stainless steel cold-rolled annealing assembly, belonging to the technical field of stainless steel cold-rolled annealing. It includes two cooling rollers, each with multiple heat dissipation grooves, a spiral guide rib installed on the inner wall of each roller, two symmetrical baffles installed on each spiral guide rib, and threaded rods installed at both ends of the inner wall of each roller. This structure, by creating heat dissipation grooves, significantly increases the contact area between the roller and the air compared to traditional smooth rollers or simple grooves. This allows for more efficient transfer of heat absorbed by the roller to the air, accelerating heat dissipation, improving overall cooling efficiency, avoiding uneven cooling of the coil caused by localized overheating of the roller, and ensuring consistent hardness across all areas of the coil. Simultaneously, a ceramic wear-resistant coating is sprayed onto the non-contact side of the spiral heat dissipation grooves. This coating has high hardness and strong wear resistance, effectively resisting the erosion and friction of impurities in the cooling environment against the groove walls.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel cold rolling annealing technology, and more specifically, to stainless steel cold rolling annealing components. Background Technology

[0002] In the cold rolling and annealing production of stainless steel, cooling rollers are the core components for achieving rapid cooling of the coil and ensuring product performance. After the stainless steel coil is subjected to high-temperature treatment in the annealing furnace, it needs to be rapidly cooled to the target temperature by cooling rollers to control grain size and ensure uniform hardness. At the same time, the cooling rollers need to rotate synchronously with the coil, continuously absorbing heat from the coil during the transmission process. Since the surface of the coil still has a certain temperature after annealing, and the cooling environment may contain tiny impurities, such as oxide scale debris, the surface of the cooling roller is prone to wear due to long-term friction with the coil and erosion by impurities. In addition, the traditional cooling roller has a simple heat dissipation structure design, which is difficult to efficiently guide heat out, which may lead to excessively high local temperatures on the roller body, affecting the uniformity of cooling, and thus affecting the surface quality of the coil and its adaptability to subsequent processing. Therefore, cooling rollers must simultaneously meet the dual requirements of "efficient heat dissipation" and "wear-resistant protection".

[0003] Most cooling rollers currently on the market use only smooth roller bodies or simple groove structures. Their heat dissipation function relies on the roller body's own heat conduction and natural air convection. The heat dissipation path is singular, and heat easily accumulates on the roller surface. Especially in continuous production scenarios, the roller temperature gradually increases, and the cooling efficiency decreases significantly, leading to uneven cooling of the coil material and localized hardness deviations. At the same time, the surface of traditional cooling rollers is mostly directly exposed to the base material without targeted wear-resistant treatment. Under long-term friction with the coil material and the erosion of impurities, the roller surface is prone to scratches and wear, which not only shortens the service life of the cooling roller, but also causes metal debris generated by wear to adhere to the surface of the coil material, causing scratches and contamination, affecting the product's appearance and quality. Although some have a coating design, the coating has poor adhesion to the base material and is easily peeled off under high temperature and vibration environments, failing to provide long-term protection. Utility Model Content

[0004] The purpose of this utility model is to address the problems in the current device, which lacks control over the feeding process, leading to material blockage and unevenness, which greatly affects the overall production efficiency. Furthermore, the lack of a corresponding drying and fermentation design after the yeast is pressed into blocks negatively impacts the flavor and quality of the corn liquor. This invention provides a stainless steel cold-rolled annealed component to solve the problems mentioned in the background.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: The present invention is as follows: a stainless steel cold-rolled annealing assembly, comprising two cooling rollers, each of which has multiple heat dissipation grooves, a spiral guide rib installed on the inner wall of each cooling roller, two symmetrical baffles installed on each spiral guide rib, threaded rods installed at both ends of the inner wall of each cooling roller, threaded grooves opened at both ends of each cooling roller, the end of each threaded rod near the corresponding cooling roller engaging with the corresponding threaded groove, a rotary valve installed at the end of each threaded rod away from the corresponding cooling roller, and a connecting pipe installed at the other end of each rotary valve.

[0006] As a preferred technical solution of this utility model, the junction of the inner wall of the heat dissipation groove and the outer surface of the cooling roller is processed with rounded corners.

[0007] As a preferred technical solution of this utility model, a guide groove is provided at the bottom of the inner sidewall of any one of the heat dissipation slots, and any one of the guide grooves is opened at an angle.

[0008] As a preferred technical solution of this utility model, the wall of any one of the heat dissipation slots is coated with a ceramic wear-resistant coating.

[0009] As a preferred technical solution of this utility model, each of the cooling rollers is equipped with an installation tube at both ends, and each of the installation tubes is equipped with a rotating shaft at the other end. The rotating shaft is hollow, with a first gear installed at the left end of the upper rotating shaft and a second gear installed at the left end of the lower rotating shaft. The first gear meshes with the second gear, and a third gear is installed at the right end of the second gear. The third gear meshes with the first gear, and a transmission shaft is installed through the third gear. A motor is installed at the end of the transmission shaft away from the cooling roller.

[0010] As a preferred technical solution of this utility model, a base plate is installed below the lower cooling roller, and side plates are installed at both ends of the base plate near the mounting tube. Two symmetrical first connecting holes are opened on each side plate, and a second connecting hole is opened on the side plate near the end of the first gear. A first bearing is installed in each of the first connecting holes, and the end of each rotating shaft away from the corresponding cooling roller is installed in the corresponding first bearing.

[0011] As a preferred technical solution of this utility model, the transmission shaft passes through the second connecting hole, a second bearing is installed at the end of the rotating shaft away from the motor, a mounting bracket is installed at the other end of the bearing, and the mounting bracket is connected to the side plate near the end of the first gear.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This structure, by incorporating heat dissipation grooves, significantly increases the contact area between the roller and the air compared to traditional smooth rollers or simple grooves. This allows for more efficient transfer of heat absorbed by the roller to the air, accelerating heat dissipation, improving overall cooling efficiency, and preventing uneven cooling of the coil caused by localized overheating of the roller, thus ensuring consistent hardness across all areas of the coil. Simultaneously, a ceramic wear-resistant coating is sprayed onto the non-contact sides of the spiral heat dissipation grooves. This coating boasts high hardness and strong wear resistance, effectively resisting the erosion and friction of impurities in the cooling environment against the groove walls, reducing groove wear, and extending the service life of the cooling roller. Furthermore, it eliminates the need for additional protective components, simplifying the overall structure of the cooling roller. Moreover, the coating acts directly on the groove walls, without affecting the heat conduction path of the heat dissipation grooves or causing scratches upon contact with the coil. This provides dual protection for both the cooling roller and the coil while improving cooling efficiency, making it suitable for the continuous production requirements of stainless steel cold rolling annealing. Attached Figure Description

[0013] Figure 1 One of the structural schematic diagrams of the stainless steel cold-rolled annealing assembly provided by this utility model; Figure 2 This is a cross-sectional view of the cooling roller of this utility model; Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is a structural diagram of the threaded rod of this utility model; Figure 5 This is a structural diagram of the side plate of this utility model; Figure 6 This is a structural diagram of the first and second gears of this utility model; Figure 7 This is a structural diagram of the third gear of this utility model.

[0014] The diagram shows: 110, base plate; 120, side plate; 130, first connecting hole; 140, second connecting hole; 210, cooling roller; 211, spiral guide rib; 212, spoiler; 213, heat dissipation groove; 214, guide groove; 220, mounting pipe; 221, rotating shaft; 230, threaded rod; 231, rotary valve; 232, connecting pipe; 310, first gear; 320, second gear; 330, first bearing; 410, motor; 420, drive shaft; 430, third gear; 440, second bearing; 450, mounting bracket. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0016] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0017] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] This embodiment proposes a stainless steel cold-rolled annealing assembly, including two cooling rollers 210. Each cooling roller 210 has multiple heat dissipation grooves 213. Each cooling roller 210 has a spiral guide rib 211 installed on its inner sidewall. Each spiral guide rib 211 has two symmetrical baffles 212 installed on its inner sidewall. Each cooling roller 210 has a threaded rod 230 installed at both ends of its inner sidewall. Each cooling roller 210 has a threaded groove at both ends. The end of each threaded rod 230 closest to the corresponding cooling roller 210 is engaged with the corresponding threaded groove. Each threaded rod 230 furthest from the corresponding cooling roller 210 has a rotary valve 231 installed at its other end. Each rotary valve 231 has a connecting pipe 232 installed at its other end. The junction of the inner wall of any of the heat dissipation grooves 213 and the outer surface of the cooling roller 210 is rounded. This design prevents sharp edges from scratching the surface of the flexible stainless steel coil during cooling, while also reducing stress concentration and preventing the roller from failing due to cracking of the groove wall at high temperatures. A guide groove 214 is provided at the bottom of the inner wall of any of the heat dissipation grooves 213, and each guide groove 214 is angled. This design guides trace amounts of moisture condensed on the surface of the coil during cooling, such as water droplets formed from residual moisture in the furnace, towards both ends of the roller, preventing moisture accumulation at the bottom of the heat dissipation groove 213 and thus preventing localized rusting of the coil. The walls of any of the heat dissipation grooves 213 are coated with a ceramic wear-resistant coating, which resists wear from impurities in the air during cooling and extends the service life of the groove.

[0020] Each cooling roller 210 has an installation tube 220 installed at both ends, and a rotating shaft 221 is installed at the other end of each installation tube 220. The rotating shaft 221 is hollow. A first gear 310 is installed at the left end of the upper rotating shaft 221, and a second gear 320 is installed at the left end of the lower rotating shaft 221. The first gear 310 and the second gear 320 mesh. A third gear 430 is installed at the right end of the second gear 320, and the third gear 430 meshes with the first gear 310. A drive shaft 420 is installed through the third gear 430, and the drive shaft 420 is located away from the first gear 310. A motor 410 is installed at one end of the cooling roller 210. This design allows the motor 410 to be started, which drives the third gear 430 to rotate via the transmission shaft 420. When the third gear 430 rotates, it drives the first gear 310 to rotate. The first gear 310 then drives the lower-end second gear 320 to rotate relative to each other. When the first gear 310 and the second gear 320 rotate, they drive their respective rotating shafts 221 to rotate. The rotating shafts 221 then drive the cooling roller 210 to rotate relative to each other via the mounting tube 220. When the two cooling rollers 210 rotate, they push the roll material to one end. A base plate 110 is installed below the lower cooling roller 210. Side plates 120 are installed at both ends of the base plate 110 near the mounting tube 220. Each side plate 120 has two symmetrical first connecting holes 130. A second connecting hole 140 is provided on the side plate 120 near the first gear 310. A first bearing 330 is installed in each of the first connecting holes 130. The end of each rotating shaft 221 away from the corresponding cooling roller 210 is installed in the corresponding first bearing 330. This design provides support for the entire device. A drive shaft 420 passes through the second connecting hole 140. A second bearing 440 is installed at the end of the rotating shaft 221 away from the motor 410. A mounting bracket 450 is installed at the other end of the bearing. The mounting bracket 450 is connected to the side plate 120 near the first gear 310. This design reduces wear on the drive shaft 420 and increases the service life of the device.

[0021] Working Principle: When annealing the coil material is required, cooling water is first introduced into the cooling roller 210 through the connecting pipe 232 at one end and the rotary valve 231. Then, the motor 410 is started, and the motor 410 drives the third gear 430 to rotate through the transmission shaft 420. When the third gear 430 rotates, it drives the first gear 310 to rotate. The first gear 310 then drives the lower-end second gear 320 to rotate in opposite directions. When the first gear 310 and the second gear 320 rotate, they drive their respective rotating shafts 221 to rotate. The rotating shafts 221 then drive the cooling rollers 210 to rotate in opposite directions through the mounting pipe 220. When the two cooling rollers 210 rotate, they push the coil material to one end. As the two cooling rollers 210 push the coil material to one side, the stainless steel coil material, after being treated at high temperature in the annealing furnace, moves at a constant speed with the cooling rollers 210. At 0 speed matching, entering the cooling zone, the surface of the coil material directly contacts the raised contact area of ​​the heat dissipation groove 213 of the cooling roller 210. Due to the good thermal conductivity of metal, the high temperature heat of the coil material itself is quickly transferred to the roller body material of the cooling roller 210 through contact conduction, completing the initial transfer of heat from the coil material to the roller body. Part of the heat transferred to the roller body material diffuses along the material towards the inner wall of the hollow roller body, directly contacting the cooling water circulating in the inner cavity. At this time, the spiral guide ribs 211 on the inner wall guide the cooling water to flow along the inner wall, preventing the cooling water from flowing directly from the inlet end to the outlet end without fully contacting the cavity wall, ensuring that the cooling water fully contacts the cavity wall, maximizing the absorption of heat. The arc-shaped baffle 212 in the middle of the inner cavity further disrupts the flow trajectory of the cooling water, transforming laminar flow into turbulent flow. The water molecules move more violently in the turbulent state, and the heat exchange efficiency is more than 25% higher than that of laminar flow, accelerating the conduction of heat from the roller body to the cooling water.

[0022] All technical features in this embodiment can be freely combined according to actual needs.

[0023] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A stainless steel cold-rolled annealing assembly, comprising two cooling rollers (210), characterized in that, Each of the cooling rollers (210) has multiple heat dissipation grooves (213), each of the cooling rollers (210) has a spiral guide rib (211) installed on its inner sidewall, each of the spiral guide ribs (211) has two symmetrical baffles (212) installed on its inner sidewall, each of the cooling rollers (210) has a threaded rod (230) installed at both ends of its inner sidewall, each of the cooling rollers (210) has a threaded groove at both ends, each of the threaded rods (230) has a threaded groove at the end of the threaded rod (230) closest to the corresponding cooling roller (210), each of the threaded rods (230) has a rotary valve (231) installed at the end of the threaded rod (230) furthest from the corresponding cooling roller (210), and each of the rotary valves (231) has a connecting pipe (232) installed at the other end of the rotary valve (231).

2. The stainless steel cold-rolled annealed assembly according to claim 1, characterized in that, The inner wall of any of the heat dissipation grooves (213) and the outer surface of the cooling roller (210) are machined with rounded corners.

3. The stainless steel cold-rolled annealed assembly according to claim 1, characterized in that, Each of the heat dissipation slots (213) has a flow guide groove (214) at the bottom of its inner sidewall, and each of the flow guide grooves (214) is opened at an angle.

4. The stainless steel cold-rolled annealed assembly according to claim 1, characterized in that, The wall of any one of the heat dissipation slots (213) is coated with a ceramic wear-resistant coating.

5. The stainless steel cold-rolled annealed assembly according to claim 1, characterized in that, Each of the cooling rollers (210) has an installation tube (220) installed at both ends, and a rotating shaft (221) is installed at the other end of each installation tube (220). The rotating shaft (221) is hollow. A first gear (310) is installed at the left end of the upper rotating shaft (221), and a second gear (320) is installed at the left end of the lower rotating shaft (221). The first gear (310) meshes with the second gear (320). A third gear (430) is installed at the right end of the second gear (320). The third gear (430) meshes with the first gear (310). A drive shaft (420) is installed through the third gear (430). A motor (410) is installed at the end of the drive shaft (420) away from the cooling roller (210).

6. The stainless steel cold-rolled annealed assembly according to claim 5, characterized in that, A base plate (110) is installed below the lower cooling roller (210). Side plates (120) are installed on both ends of the base plate (110) near the mounting tube (220). Two symmetrical first connecting holes (130) are opened on each side plate (120). A second connecting hole (140) is opened on the side plate (120) near the first gear (310). A first bearing (330) is installed in each of the first connecting holes (130). The end of each rotating shaft (221) away from the corresponding cooling roller (210) is installed in the corresponding first bearing (330).

7. The stainless steel cold-rolled annealed assembly according to claim 5, characterized in that, The drive shaft (420) passes through the second connecting hole (140). The rotating shaft (221) is equipped with a second bearing (440) at one end away from the motor (410). The other end of the bearing is equipped with a mounting bracket (450). The mounting bracket (450) is connected to a side plate (120) near the end of the first gear (310).

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