Cooling roll structure for sponge cooling

Abstract

The application discloses a cooling roller structure for sponge cooling, and relates to the technical field of cooling rollers, which comprises a supporting plate and a cooling roller cylinder arranged on the supporting plate, side plates are fixedly arranged on the two sides of the cooling roller cylinder, a fixed shaft penetrating through the side plates is arranged in the cooling roller cylinder, an auxiliary assembly for controlling synchronous cooling of the supporting plate and reducing axial temperature difference is arranged in the fixed shaft, and a blocking plate for controlling the opening state through axial sliding is arranged at the moving end of the auxiliary assembly. Water inlet pipes and water outlet pipes symmetrically arranged at the two ends of the fixed shaft are utilized to realize synchronous water inlet and water outlet at the two ends, all array water spraying openings are synchronously opened through pressure driving of the blocking plate, cooling water is instantaneously and simultaneously sprayed to the inner wall in the whole roller surface width direction, global synchronous cooling is realized, and the axial temperature difference problem that the water inlet end is cold and the water outlet end is hot due to medium flow temperature rise is reduced.

Description

Technical Field

[0001] This application relates to the field of cooling roller technology, and in particular to a cooling roller structure for sponge cooling. Background Technology

[0002] Cooling rollers are devices that achieve uniform temperature distribution and efficient heat exchange on the roller surface to ensure that sponge products are cooled evenly, do not deform, and have consistent surface quality.

[0003] Existing technologies mostly employ spiral jacket or double spiral channel cooling structures, with the cooling medium flowing in from one end of the roller body. As it absorbs heat, the temperature gradually increases, resulting in a significant axial temperature difference on the roller surface from the inlet to the outlet. This directly causes inconsistent cooling rates on both sides of the sponge product, generating internal stress, leading to product warping and deformation, and seriously affecting product quality. Utility Model Content

[0004] To improve the problem of uneven axial temperature, this application provides a cooling roller structure for sponge cooling.

[0005] The cooling roller structure for sponge cooling provided in this application adopts the following technical solution:

[0006] A cooling roller structure for sponge cooling includes a support plate and a cooling roller disposed with the support plate. Side plates are fixedly disposed on both sides of the cooling roller. A fixed shaft is disposed inside the cooling roller and passes through the side plates. An auxiliary component for controlling the synchronous cooling of the support plate and reducing the axial temperature difference is disposed inside the fixed shaft. A sealing plate for controlling the opening state by axial sliding is disposed at the moving end of the auxiliary component.

[0007] By adopting the above technical solution, the support plate and the cooling roller are rotated to provide support, the side plates on both sides are used for sealing and structural reinforcement, the central fixed shaft serves as the core carrier, and the auxiliary components inside control the synchronous spraying of coolant by driving the sealing plate to slide axially. The cooling water evenly covers the inner wall of the roller in the form of spray for efficient heat exchange, thereby achieving uniform cooling and eliminating axial temperature difference.

[0008] Preferably, the auxiliary component includes two main pipes fixedly connected to both ends of the fixed shaft. An inlet pipe and an outlet pipe are fixedly installed inside the main pipe and the fixed shaft. The inlet pipe has an array of spray nozzles penetrating the interior of the fixed shaft, and the outlet pipe has an array of inlet nozzles penetrating the interior of the fixed shaft. A circular groove is formed inside the fixed shaft, and an auxiliary port is formed inside the circular groove. The movement of the sealing plate is controlled by a moving structure inside the fixed shaft, and the side plate enhances heat exchange through a stirring structure.

[0009] By adopting the above technical solution, in the auxiliary components, the water inlet pipe and water outlet pipe in the main pipe at both ends of the fixed shaft are responsible for the input and discharge of the cooling medium. The water spray nozzle on the water inlet pipe is used to spray the cooling water onto the inner wall of the roller, and the water inlet on the water outlet pipe is used to discharge the hot water after heat exchange. The circular groove and its auxiliary port provide the internal components with activity space and flow path. The moving structure is used to control the opening and closing state of the water spray nozzle, while the stirring structure enhances the heat exchange efficiency through mechanical movement.

[0010] Preferably, the inlet pipe and the outlet pipe are configured as semi-circular rings of the same size, and the combined size of the inlet pipe and the outlet pipe is adapted to the inner wall size of the fixed shaft.

[0011] By adopting the above technical solution, the inlet pipe and outlet pipe adopt a semi-circular ring design and are combined into a cylindrical shape that fits the inner wall of the fixed shaft, which optimizes the space utilization efficiency and fluid flow of the pipe inside the fixed shaft.

[0012] Preferably, the movable structure includes a slid groove formed in the fixed shaft and connected to the circular groove. The slid groove is slidably connected to the sealing plate and is adapted in size. A sliding column is fixedly provided at one end of the sealing plate located in the slid groove. A cylinder fixedly connected to the slid groove is slidably provided on the sliding column. A return spring is fixedly provided between the sliding column and the cylinder. An opening groove matching the distribution of the water spray nozzles is formed on the sealing plate.

[0013] By adopting the above technical solution, in the moving structure, the sliding groove provides precise sliding guidance for the sealing plate, and the sliding cooperation between the sliding column and the cylinder, as well as the return spring, together realize the sealing plate being pushed open by water pressure and automatically reset after the pressure disappears. Meanwhile, the opening groove on the sealing plate is aligned or misaligned with the water nozzle during sliding, thereby precisely controlling the opening and closing of the water nozzle.

[0014] Preferably, the end of the sealing plate away from the cylinder extends into the inside of the water inlet pipe and is slidably disposed with the water inlet pipe, and the sealing plate slides inside the circular groove.

[0015] By adopting the above technical solution, one end of the sealing plate extends into the water inlet pipe to directly feel the water pressure, while the other end slides in the circular groove. This design ensures that the sealing plate can move stably under the drive of water pressure and effectively isolates the water inlet area from the internal space.

[0016] Preferably, the inside of the water outlet pipe is connected to the inside of the circular groove.

[0017] By adopting the above technical solution, the inside of the water outlet pipe is connected to the inside of the circular groove, forming a continuous drainage channel, which allows the cooling water gathered at the bottom of the roller to smoothly enter the water outlet pipe and be discharged from the system, thereby automatically maintaining the liquid level balance in the system.

[0018] Preferably, the agitation structure includes a scraper fixedly disposed with the side plate, and the scraper has a linear array of circular holes through it.

[0019] By adopting the above technical solution, in the agitation structure, the scraper fixed to the side plate rotates with the roller to agitate the bottom water flow, and the round holes opened on it can disperse the water flow and promote temperature mixing during agitation.

[0020] Preferably, the opening groove is semi-circular.

[0021] By adopting the above technical solution, the opening slot adopts a semi-circular ring structure, which ensures that when it is aligned with the array of distributed water spray nozzles, all water spray nozzles can be opened synchronously and uniformly to form a complete cooling water curtain.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By using symmetrically arranged inlet and outlet water pipes at both ends of a fixed shaft, synchronous water intake and output at both ends are achieved. The pressure-driven sealing plate opens all array spray nozzles synchronously, and cooling water is instantly and simultaneously sprayed onto the inner wall of the entire roller surface width, achieving synchronous cooling across the entire area. This reduces the axial temperature difference caused by the temperature rise of the medium flow, resulting in a cold inlet end and a hot outlet end. It ensures that the cooling effect of the sponge product is highly consistent across the entire width, effectively preventing deformation and warping caused by large temperature differences.

[0024] 2. Cooling water acts directly on the high-temperature roller wall in the form of an impact jet, which can effectively break the thermal boundary layer. At the same time, the continuous rotation and agitation of the scraper with round holes forces the water at the bottom to become turbulent, which not only mixes the water temperature to avoid local overheating, but also further enhances the heat exchange between the water and the roller wall, thereby improving the heat exchange efficiency. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application;

[0026] Figure 2 This is a schematic diagram of the internal structure of the cooling roller in this application;

[0027] Figure 3 This is a schematic diagram of the internal structure of the fixed shaft in this application;

[0028] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0029] Figure 5 This is a cross-sectional view of the fixed shaft structure of this application;

[0030] Figure 6 This is a cross-sectional view of the cylindrical structure in this application;

[0031] Figure 7 This is an exploded view of the cylindrical structure of this application.

[0032] Reference numerals: 1. Support plate; 2. Cooling roller; 3. Fixed shaft; 4. Side plate;

[0033] 5. Auxiliary components; 51. Inlet pipe; 52. Outlet pipe; 53. Spray nozzle; 54. Inlet; 55. Circular groove; 56. Auxiliary port; 57. Sliding groove; 58. Opening groove; 59. Sliding column; 510. Cylinder; 511. Return spring; 512. Scraper; 513. Circular hole; 514. Main pipe; 6. Sealing plate. Detailed Implementation

[0034] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0035] This application discloses a cooling roller structure for sponge cooling.

[0036] Reference Figures 1 to 3 A cooling roller structure for sponge cooling includes a support plate 1 and cooling rollers 2 disposed on the support plate 1. Six cooling rollers 2 are disposed on the inner side of the support plate 1, with the six cooling rollers 2 arranged in pairs. Sponge strips are wound around the cooling rollers 2. Side plates 4 are fixedly installed on both sides of the cooling rollers 2, sealing the interior of the cooling rollers 2. A fixed shaft 3 is disposed inside the cooling rollers 2, passing through the interior of the side plates 4 and rotatably mounted with the side plates 4. The fixed shaft 3 is coaxially disposed with the cooling rollers 2. An auxiliary component 5 is disposed inside the fixed shaft 3. The auxiliary component 5 is used to control the synchronous cooling of the support plate 1 and reduce the axial temperature difference. A sealing plate 6 is disposed at the moving end of the auxiliary component 5. The sealing plate 6 is used to control the opening state of cooling by axial sliding. The base material of the fixed shaft 3 is 45 steel.

[0037] When the entire cooling roller structure is in operation, the cooling roller 2 is driven by a motor to rotate around the fixed shaft 3. The high-temperature sponge strip contacts the outer surface of the cooling roller 2 and transfers heat. The fixed shaft 3 remains stationary, and the auxiliary component 5 inside it starts to work, introducing cooling water. After passing through a filtration process, the cooling water enters the auxiliary component 5. The pressure of the cooling water acts on the moving end of the auxiliary component 5, pushing the sealing plate 6 to slide axially, thereby opening the coolant passage. The coolant is sprayed synchronously and evenly from the fixed shaft 3 to the entire inner wall of the cooling roller 2 through the opened passage, absorbing its heat to achieve rapid and uniform cooling. This process avoids the temperature difference between the inlet and outlet ends of the traditional structure, ensuring that the cooling effect is not significantly different along the entire width of the sponge strip.

[0038] Reference Figures 3 to 5The auxiliary component 5 includes two main pipes 514 fixedly connected to both ends of the fixed shaft 3. Each main pipe 514 is internally connected to the fixed shaft 3. An inlet pipe 51 and an outlet pipe 52 are fixedly installed within each of the main pipes 514. The inlet pipes 51 and 52 extend into the interior of the fixed shaft 3 and are symmetrically distributed. A spray nozzle 53 is provided within the inlet pipe 51, penetrating the interior of the fixed shaft 3. An inlet 54 is provided within the outlet pipe 52, penetrating the interior of the fixed shaft 3. The spray nozzles 53 and inlet 54 are arranged in a circumferential linear array within the fixed shaft 3. A circular groove 55 is provided, which provides moving space for the sealing plate 6. An auxiliary port 56 is provided inside the circular groove 55, which penetrates the interior of the fixed shaft 3. The auxiliary port 56 is used to prevent water from being trapped inside the circular groove 55. The movement of the sealing plate 6 is controlled by a moving structure inside the fixed shaft 3. The side plate 4 enhances heat exchange through a stirring structure. The inlet pipe 51 and outlet pipe 52 are set as semi-circular rings of the same size. The combined size of the inlet pipe 51 and outlet pipe 52 is adapted to the inner wall size of the fixed shaft 3 to prevent instability of the inlet pipe 51 and outlet pipe 52. The interior of the outlet pipe 52 is connected to the interior of the circular groove 55 to discharge the cooling water inside the circular groove 55.

[0039] During operation, cooling water enters the inlet pipe 51 from the main pipe 514 at one end and fills it. The water pressure acts on the sealing plate 6, pushing it to move axially. When the opening groove 58 on the sealing plate 6 moves to coincide with the spray nozzle 53 on the inlet pipe 51, all spray nozzles 53 open simultaneously, and the cooling water evenly covers the inner wall of the cooling roller 2 in the form of spray for efficient heat exchange. The water that has absorbed heat and increased in temperature gathers at the bottom of the cooling roller 2. When its liquid level rises to the position of the inlet 54 on the outlet pipe 52 as the water accumulates, the hot water is drawn into the outlet pipe 52 under the action of pressure difference and discharged through the main pipe 514, forming a circulation. At the same time, the stirring structure fixed to the side plate 4 rotates with the roller, continuously stirring the water at the bottom to make its temperature evenly mixed and enhance heat exchange. During this process, the circular groove 55 provides space for the internal moving parts, and the auxiliary port 56 on it helps to balance the internal pressure and flow.

[0040] Reference Figures 1 to 7The movable structure includes a chute 57 formed within the fixed shaft 3 and connected to the circular groove 55. The chute 57 is semi-circular in shape, and its inner wall is slidably connected to the outer wall of the sealing plate 6, with matching dimensions. A sliding post 59 is fixedly mounted on the sealing plate 6, located at one end of the sealing plate 6 within the chute 57. A cylinder 510 is slidably mounted on the outer wall of the sliding post 59, with one end of the cylinder 510 away from the sealing plate 6 fixedly connected to the top of the inner wall of the chute 57. A return spring 511 is fixedly connected to one end of the sliding post 59 inside the cylinder 510, with the other end of the return spring 511 away from the sliding post 59 fixed to the top of the inner wall of the cylinder 510. An opening slot 58 is formed on the sealing plate 6, and the opening slot 58 is distributed in accordance with the water nozzles 53. The sealing plate 6 extends into the water inlet pipe 51 from the end away from the cylinder 510 and slides with the water inlet pipe 51. The size of the end of the sealing plate 6 inside the water inlet pipe 51 is adapted to the size of the inner wall of the water inlet pipe 51. The sealing plate 6 slides inside the circular groove 55. The moving distance of the sealing plate 6 is less than the size of the sealing plate 6 inside the water inlet pipe 51. The agitation structure includes a scraper 512 fixedly installed with the side plate 4. One end of the scraper 512 is fixed with the side plate 4, and the other end is inserted into the side plate 4 on the other side for easy installation and disassembly. A circular hole 513 is opened through the scraper 512. The circular holes 513 are linearly distributed on the scraper 512. The opening groove 58 is semi-circular. The return spring 511 is made of 304 stainless steel.

[0041] When cooling water enters the inlet pipe 51, the water pressure acts directly on one end of the sealing plate 6 extending into it, pushing it to slide along the slide groove 57 towards the cylinder 510. At this time, the sliding column 59 compresses the return spring 511 inside the cylinder 510, while the sealing plate 6 slides inside the circular groove 55 until its annular opening groove 58 is completely aligned with the spray nozzle 53, completing the opening. When the inlet water pressure decreases or disappears, the compressed return spring 511 releases its elastic force, pushing the sliding column 59 and the sealing plate 6 to slide back and reset, causing the opening groove 58 to be misaligned with the spray nozzle 53, thereby closing the spray nozzle 53. During the drainage and agitation process, the fixed... The scraper 512 on the side plate 4 rotates together with the cooling roller 2. The circular holes 513 distributed linearly on it can effectively break up water clumps and reduce rotational resistance when agitating the water flow, and significantly improve the uniformity of water temperature and heat exchange efficiency. The sealing plate 6 and the sliding column 59 are both made of PEEK (polyether ether ketone) material through precision injection molding. PEEK has extremely high mechanical strength, dimensional stability and high temperature resistance, ensuring that it will not deform under the impact of high pressure water flow. The working surface of the slide 57 is treated with salt bath nitriding, which has higher surface hardness, better wear resistance, and excellent corrosion resistance, and will not reduce the fatigue strength of the substrate.

[0042] The implementation principle of the cooling roller structure for sponge cooling in this embodiment is as follows: First, the external main circuit drives the main motor to rotate, which drives a set of cooling rollers 2 to rotate in the opposite direction through transmission components (such as gears and belts). The side plate 4 drives the scraper 512 fixed on the inner side to rotate at a uniform speed. At the same time, the control circuit starts the circulating water pump, pumping cooling water out of the water tank and pressurizing it into the water inlet pipe 51. When the water pressure is established and reaches the set value, the water pressure will overcome the elastic force of the return spring 511 and push the sealing plate 6 to slide in the shaft, so that the opening groove 58 on it is aligned with the spray nozzle 53, thereby realizing the synchronous and instantaneous opening of all spray nozzles 53, and uniformly spraying the inner wall of the cooling roller 2. The entire system can be integrated and controlled by a main switch or PLC to realize the linkage between the roller rotation and the water pump start-up. The water inlet pressure can be precisely controlled by adjusting the water pump power or pipeline valves, thereby indirectly and reliably controlling the opening and closing state and cooling intensity of the spray nozzles 53.

[0043] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cooling roller structure for sponge cooling, characterized in that: It includes a support plate (1) and a cooling roller (2) disposed with the support plate (1). Side plates (4) are fixedly disposed on both sides of the cooling roller (2). A fixed shaft (3) is disposed inside the cooling roller (2) and passes through the side plates (4). An auxiliary component (5) is disposed inside the fixed shaft (3) for controlling the synchronous cooling of the support plate (1) and reducing the axial temperature difference. A sealing plate (6) is disposed at the moving end of the auxiliary component (5) for controlling the opening state by axial sliding.

2. The cooling roller structure for sponge cooling according to claim 1, characterized in that: The auxiliary component (5) includes two main pipes (514) that are fixedly connected to both ends of the fixed shaft (3). The main pipes (514) and the fixed shaft (3) are fixedly provided with an inlet pipe (51) and an outlet pipe (52). The inlet pipe (51) has an array of spray nozzles (53) that penetrate the interior of the fixed shaft (3). The outlet pipe (52) has an array of inlet ports (54) that penetrate the interior of the fixed shaft (3). The fixed shaft (3) has a circular groove (55). The circular groove (55) has an auxiliary port (56). The fixed shaft (3) has a moving structure to control the movement of the sealing plate (6). The side plate (4) has a stirring structure to enhance heat exchange.

3. The cooling roller structure for sponge cooling according to claim 2, characterized in that: The inlet pipe (51) and outlet pipe (52) are set as semi-circular rings of the same size, and the combined size of the inlet pipe (51) and outlet pipe (52) is adapted to the inner wall size of the fixed shaft (3).

4. The cooling roller structure for sponge cooling according to claim 2, characterized in that: The movable structure includes a sliding groove (57) opened in the fixed shaft (3) and connected to the circular groove (55). The sliding groove (57) is slidably connected to the sealing plate (6) and the size is adapted to each other. A sliding column (59) is fixedly installed at one end of the sealing plate (6) located in the sliding groove (57). A cylinder (510) fixedly connected to the sliding groove (57) is slidably installed on the sliding column (59). A return spring (511) is fixedly installed between the sliding column (59) and the cylinder (510). An opening groove (58) matching the distribution of the water spray nozzles (53) is opened on the sealing plate (6).

5. The cooling roller structure for sponge cooling according to claim 4, characterized in that: The end of the sealing plate (6) away from the cylinder (510) extends into the water inlet pipe (51) and is slidably disposed with the water inlet pipe (51). The sealing plate (6) slides inside the circular groove (55).

6. The cooling roller structure for sponge cooling according to claim 2, characterized in that: The inside of the water outlet pipe (52) is connected to the inside of the circular groove (55).

7. The cooling roller structure for sponge cooling according to claim 2, characterized in that: The agitation structure includes a scraper (512) fixedly disposed with the side plate (4), and the scraper (512) has a linear array of circular holes (513) through it.

8. The cooling roller structure for sponge cooling according to claim 4, characterized in that: The opening groove (58) is semi-circular.

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