A tin plate surface rolling roller assembly

Abstract

The present invention relates to the technical field of tinplate rolling, specifically to a tinplate surface rolling roller assembly, comprising a frame, a water inlet connection assembly, a drainage assembly, a main roller, an auxiliary roller, a support plate, a partition, and an accelerating vane. The water inlet connection assembly is rotatably connected to the frame and connected to the end of the main roller. The drainage assembly is mounted on the side wall of the frame and is rotatably sealed to the side wall of the main roller. The auxiliary roller is rotatably mounted on the frame, and the support plate and the partition are both mounted on the inner side of the main roller. The present invention solves the problem that the temperature distribution along the axial direction of the roller body is still uneven after the existing rolling roller assembly is cooled, causing the tinplate to deform to varying degrees and form microcracks during rolling. The present invention first cools the roller body with cooling water, and then cools the roller end with the heated cooling water. In combination with the provision of accelerating vanes that rotate with the main roller, the cooling water flow rate is adjusted in accordance with the rotation speed of the main roller to adaptively match the rotation speed of the main roller.

Description

Technical Field

[0001] The invention relates to the technical field of tinplate rolling, in particular to a roller group for rolling the surface of a tinplate. Background Art

[0002] Tinplate is a metal material formed by coating a layer of pure tin on a low-carbon steel sheet. Combining the strength of steel with the corrosion resistance, weldability, and aesthetics of tin, it is a crucial material for packaging applications in food, beverages, and chemicals. Its manufacturing process sequentially includes steelmaking and hot rolling, pickling and annealing, cold rolling, cleaning and annealing, electrotin plating, finishing, and slitting. The latter process involves tempering the tinplate using a rolling mill.

[0003] When tempering galvanized sheet steel, the rollers generate significant heat due to intense friction between the rollers and the strip, as well as plastic deformation of the metal. This causes the rollers to heat up significantly. Unlike rolling other materials, the tin layer electroplated on the strip surface has a melting point of only 232°C. As the roller temperature continues to rise, the tin layer gradually softens. To prevent this softening from affecting rolling quality, the rollers must be continuously cooled, maintaining a relatively low temperature range to prevent significant deformation of the tin layer during rolling.

[0004] Many existing technologies have improved the rolls by installing cooling water channels inside them. This allows the cooling water to remove heat from the rolls, thereby keeping the rolls within a relatively low temperature range. However, as the roll temperature rises, the axial temperature distribution along the roll body is uneven, with the axial temperature being higher in the middle and lower at the ends. When the rolls are cooled using separate cooling water channels, the axial temperature of the rolls remains inconsistent after cooling, resulting in a large temperature difference between the roll body and the roll ends. Due to the different temperatures at the contact points with the rolls, the rolled tinplate undergoes varying degrees of deformation during rolling, which can easily lead to microcracks on the surface of the tinplate after rolling.

[0005] Therefore, a tin-plated sheet surface rolling roller group is proposed. Summary of the Invention

[0006] The object of the present invention is to provide a tinplate surface rolling roller group, which first cools the roller body with cooling water, and then cools the roller end with the heated cooling water, and is combined with an accelerating vane that rotates with the main roller, and adaptively matches the main roller speed to adjust the cooling water flow rate accordingly, thereby solving the problem that the temperature distribution along the axial direction of the roller body is still uneven after the existing rolling roller group is cooled, causing the tinplate to undergo deformation of different sizes and form microcracks during rolling. The cooling water circulation rate can be adjusted according to the rolling speed, and the cooling efficiency can be adjusted accordingly, so that the surface temperature along the axial direction of the roller body after the main roller is cooled tends to be consistent, effectively avoiding the effect of adjacent parts producing deformation of different sizes and the appearance of microcracks during the rolling of the tinplate.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A tinplate surface rolling roller group includes a frame, a water inlet connection assembly, a drainage assembly, a main roller, an auxiliary roller, a support plate, a partition and an acceleration vane. The water inlet connection assembly is rotatably connected to the frame, and the water inlet connection assembly is connected to the end of the main roller. The drainage assembly is installed on the side wall of the frame, and the drainage assembly is rotatably sealed with the side wall of the main roller. The auxiliary roller is rotatably installed on the frame, the support plate and the partition are both installed on the inner side of the main roller, and the support plate and the partition are staggered. The acceleration vane is installed on the outer side of the water inlet connection assembly, and the acceleration vane is located on the inner side of the drainage assembly. When the main roller rotates, the acceleration vane rotates with the main roller and increases the flow rate of cooling water. The cooling water introduced by the water inlet connection assembly first cools the middle part of the main roller, and the water after preliminary cooling cools the end of the main roller during the process of flowing toward the drainage assembly.

[0009] Since during the tempering rolling of tin-plated sheet, the temperature of both ends of the main roll in the axial direction is lower than the temperature of the roll body, the cooling water is first used to cool the roll body of the main roll, and then the cooling water temperature is slightly increased. Although the cooling water temperature is slightly increased, the cooling water temperature is much lower than the temperature of the end of the main roll. Then, when the cooling water flows to the end of the main roll, the end of the main roll can still be cooled. Moreover, since the temperature of the cooling water increases, the heat exchange efficiency is correspondingly reduced at this time, thereby avoiding excessive cooling of the end of the main roll and a large temperature difference with the roll body of the main roll, thereby greatly reducing the temperature difference between the two ends of the main roll and the roll body.

[0010] Preferably, the water inlet connection assembly includes a reinforced end and a water inlet pipe, the reinforced end is connected to the main roller, and the reinforced end is coaxially arranged with the main roller, the reinforced end is rotatably connected to the frame, and the water inlet pipe is connected to the end of the reinforced end.

[0011] Preferably, the drainage assembly includes a fixing ring, a water outlet pipe and a sealing ring, the sealing ring is attached to the end of the main rolling roller, and the sealing ring is located outside the reinforced end head, the fixing ring is installed on the frame, the water outlet pipe is connected to the outer periphery of the fixing ring, and the end of the water outlet pipe is connected to the inside of the fixing ring.

[0012] Preferably, the main rolling roller includes a chrome cylinder, an end sealing seat, a spiral sheet, a guide seat and a docking column. The number of the end sealing seat and the guide seat is two, the two ends of the guide seat are fitted together, and the guide seat is arranged on the inner side of the chrome cylinder, the docking column is inserted between the two ends of the guide seat, the two end sealing seats are respectively fitted on the ends away from the two guide seats, and the outer periphery of the end sealing seat is sealed and fitted with the inner periphery of the chrome cylinder, the two spiral sheets are both fitted on the inner periphery of the chrome cylinder, and the spiral sheets are respectively located on the outside of the corresponding end sealing seats, and the rotation directions of the two spiral sheets are arranged in opposite directions.

[0013] Preferably, the support plate and the partition are both installed on the outer periphery of the guide seat, and the outer periphery of the support plate is sealed and fitted with the inner periphery of the chrome cylinder.

[0014] Preferably, the end sealing seat includes a seat body, an end water outlet hole and an end water inlet hole. The end of the seat body is flush with the end of the chrome cylinder, and the outer periphery of the seat body is constructed with an end cooling channel located on the inner side of the chrome cylinder. The end water outlet hole and the end water inlet hole are both constructed inside the seat body, and their number is set to four. The end of the end water outlet hole is located between the sealing ring and the reinforced end head, and the end water inlet hole is set in fit with the guide seat.

[0015] Preferably, the guide seat includes a docking seat, a docking groove, a side plate, a conveying channel, a conical block, a diverter groove, an internal water inlet and an internal water outlet, one end of the docking seat is limited and fitted with the seat body, the docking groove is constructed at one end of the docking seat away from the seat body, and the docking groove is adapted to the docking column, the side plate is installed on the outer periphery of the docking seat away from the seat body, the conveying channel is constructed inside the docking seat, and the end of the conveying channel is connected with the end water inlet, the conical block is fitted with one end of the docking seat close to the seat body, and the conical block is limited and plugged with the seat body, the diverter groove is constructed inside the docking seat, and the diverter groove is connected to the inside of the reinforced end head, the internal water inlet and the internal water outlet are staggered on the docking seat, the internal water inlet is connected between the outer periphery of the docking seat and the diverter groove, the internal water outlet is connected between the outer periphery of the docking seat and the conveying channel, and adjacent internal water outlet holes and internal water inlet holes are respectively located on both sides of the same partition.

[0016] Preferably, the outer periphery of the support plate is constructed with four guide grooves distributed in a circular array about the center of the support plate, and the guide grooves are composed of a number of branch grooves, and the branch grooves close to the center of the support plate converge at a point on the side wall of the support plate close to the internal water outlet, and the branch grooves expand outward in a fan shape away from the center of the support plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When the present invention is applied to the tempering rolling of tinplate, the cooling water that is not heated initially cools the roller body of the main roller synchronously. The heated cooling water flows out of the main roller and converges into the conveying pipe. Then, when flowing through the guide seat and the end sealing seat, the end of the main roller is cooled again. Thus, by utilizing the temperature change of the cooling water to distribute cooling to different parts of the main roller, the temperature difference in the axial direction of the main roller can be greatly reduced, thereby avoiding the tinplate from being deformed in different sizes during rolling, effectively avoiding the generation of micro cracks on the surface of the tinplate, and improving the quality of the tinplate after tempering rolling.

[0019] 2. Through the provided main rolling rollers, the cooling water flows into the diversion groove of the docking seat, and then flows to the corresponding area through the internal water inlet hole to synchronously cool the barrel part of the chrome cylinder. The heated cooling water after preliminary cooling flows into the conveying channel through the internal water outlet hole, and then flows into the end circulation pipe formed between the end sealing seat and the guide seat to cool the barrel end of the chrome cylinder, thereby making the temperature of each part of the chrome cylinder in the axial direction after cooling consistent, greatly reducing the temperature difference in the axial direction of the chrome cylinder, which is beneficial to improving the quality of the tinplate after quenching and tempering rolling; by setting the number of the end sealing seat and the guide seat to two, the chrome cylinder is synchronously cooled from both ends, and during high-speed production, the cooling efficiency is greatly improved by synchronous cooling from both ends, and the temperature of the chrome cylinder can be effectively cooled to an appropriate range.

[0020] 3. Through the support plates, partitions, internal water inlet holes and internal water outlet holes, the area between the outer periphery of the guide seat and the inner periphery of the chrome cylinder is evenly divided into several intervals under the action of the staggered arrangement of the support plates and partitions, and the cooling water is guided to flow unidirectionally in the intervals through the internal water inlet holes and the internal water outlet holes, thereby greatly improving the utilization efficiency of the cooling water and effectively ensuring the consistent cooling effect of the barrel body of the chrome cylinder, which is beneficial to reducing the temperature difference in the axial direction of the chrome cylinder; when the main rolling roller rotates, the guide seat rotates therewith, and since the cooling water flows along the direction of the diverter groove, the internal water inlet hole, the internal water outlet hole and the conveying channel, it is equivalent to the cooling water flowing from the diverter groove into the conveying channel. Since the diverter groove and the docking seat are coaxially arranged, and the conveying channel is arranged close to the outer periphery of the docking seat, the centrifugal force can be used to drive the cooling water to flow rapidly, and the cooling power can be greatly improved when the flow cross-section is fixed.

[0021] 4. Through the support plate, guide groove and branch groove, when the cooling water enters the interval through the internal water inlet hole, the cooling water flows in turn along the guide grooves on both sides of the support plate under the action of the guide groove. The cooling water flowing out of the internal water inlet hole diffuses outward under the action of the guide groove, so that the cooling water quickly contacts the inner peripheral part of the chromium cylinder in the corresponding interval. When the cooling water flows toward the internal water outlet hole, the guide groove can quickly gather the cooling water, so that it quickly flows into the conveying channel through the corresponding internal water outlet hole, thereby greatly improving the cooling efficiency of the main rolling mill by ensuring the circulation efficiency of the cooling water.

[0022] 5. The support plate can not only evenly divide the area between the outer periphery of the guide seat and the inner periphery of the chrome cylinder into several intervals, but also play a better supporting role between the chrome cylinder and the guide seat, thereby ensuring the rolling strength of the chrome cylinder and avoiding deformation of the chrome cylinder and affecting the rolling quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the main roller of the present invention;

[0025] Figure 3 is a cross-sectional view of the main roller of the present invention;

[0026] Figure 4 is a cross-sectional view of the end sealing seat of the present invention;

[0027] Figure 5 It is a schematic diagram of the connection between the end sealing seat and the guide seat of the present invention;

[0028] Figure 6 is a cross-sectional view of the guide seat of the present invention;

[0029] Figure 7 For the present invention Figure 6 A magnified view of the structure at center A;

[0030] Figure 8 It is a structural schematic diagram of the support plate of the present invention.

[0031] In the figure: 1. Frame; 2. Water inlet connection assembly; 21. Reinforced end; 22. Water inlet pipe; 3. Drainage assembly; 31. Fixed ring; 32. Water outlet pipe; 33. Sealing ring; 4. Main roller; 41. Chrome cylinder; 42. End sealing seat; 421. Seat body; 422. End water outlet hole; 423. End water inlet hole; 43. Spiral blade; 44. Guide seat; 441. Docking seat; 442. Docking groove; 443. Side plate; 444. Conveying channel; 445. Conical block; 446. Diverter groove; 447. Internal water inlet hole; 448. Internal water outlet hole; 45. Docking column; 5. Auxiliary roller; 6. Support plate; 61. Guide groove; 611. Branch groove; 7. Partition; 8. Accelerator blade. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figures 1 to 8 The present invention provides a tin plate surface rolling roller group, the technical solution is as follows:

[0034] Reference Figure 1 and Figure 3 A tinplate surface rolling roller group includes a frame 1, a water inlet connection component 2, a drainage component 3, a main roller 4, an auxiliary roller 5, a support plate 6, a partition 7 and an accelerating vane 8. The water inlet connection component 2 is rotatably connected to the frame 1, and the water inlet connection component 2 is connected to the end of the main roller 4. The water inlet connection component 2 is divided into two groups, one at each end of the main roller 4. The water inlet connection component 2 not only serves as a connecting structure between the main roller 4 and the frame 1, but also provides cooling water flow inside the water inlet connection component 2 so that the cooling water flows to the center of the main roller 4. The assembly 3 is installed on the side wall of the frame 1, and the drainage assembly 3 is rotatably sealed with the side wall of the main roller 4. The drainage assembly 3 also consists of two groups, which are respectively arranged at both ends of the main roller 4 to guide the outflow of cooling water. The auxiliary roller 5 is rotatably installed on the frame 1. When in use, a suitable gear set is installed on the periphery of the water inlet connection assembly 2 and the periphery of the rotating shaft of the auxiliary roller 5, so that the main roller 4 and the auxiliary roller 5 rotate at the same linear speed, further avoiding the main roller 4 and the auxiliary roller 5 from slipping during the tempering rolling of the tinned sheet. The support plate 6 and the partition 7 are both installed on the main roller 4. On the inner side of the roller 4, an O-ring is provided on the outer periphery of the support plate 6 to ensure the sealing between the support plate 6 and the main roller 4, and the support plate 6 and the partition 7 are staggered. The accelerating vane 8 is installed on the outer side of the water inlet connection component 2, and the accelerating vane 8 is located on the inner side of the drainage component 3. The accelerating vane 8 is an impeller structure. When the main roller 4 rotates, the accelerating vane 8 rotates with the main roller 4. A volute is formed on the outer periphery of one end of the water inlet connection component 2 close to the end of the main roller 4 to match the accelerating vane 8 and increase the flow rate of the cooling water. Since the water output is consistent with the water inlet, Although the accelerating vane 8 is located at the drainage component 3, it can correspondingly increase the cooling water inflow rate by accelerating the cooling water discharge rate. The cooling water introduced by the water inlet connection component 2 first cools the middle part of the main roller 4. The water after preliminary cooling cools the end of the main roller 4 during the flow toward the drainage component 3, thereby ensuring that there is only a small temperature difference in the axial direction of the cooled main roller 4, thereby avoiding the tinplate from deforming to different sizes during rolling, effectively avoiding the generation of microcracks on the surface of the tinplate, and thus improving the quality of the tinplate after tempering and rolling.

[0035] Reference Figure 2As an embodiment of the present invention, specifically, the water inlet connection assembly 2 includes a reinforced end head 21 and a water inlet pipe 22. The reinforced end head 21 is connected to the main roller 4. The reinforced end head 21 is made of high-strength 42CrMo alloy material and is thickened to a certain extent. The reinforced end head 21 is coaxially arranged with the main roller 4. When in use, the main roller 4 is driven to rotate by driving the reinforced end head 21. The reinforced end head 21 is rotatably connected to the frame 1. The water inlet pipe 22 is connected to the end of the reinforced end head 21. The water inlet pipe 22 is connected to the cooling water pipe through a rotating sealing joint.

[0036] Reference Figure 2 and Figure 3 As an embodiment of the present invention, specifically, the drainage assembly 3 includes a fixing ring 31, a water outlet pipe 32 and a sealing ring 33. The sealing ring 33 is fitted on the end of the main rolling roller 4, and the sealing ring 33 is located on the outside of the reinforcement end head 21. The fixing ring 31 is installed on the frame 1. An annular drainage channel is formed between the inner side of the fixing ring 31 and the outer side of the reinforcement end head 21. The water outlet pipe 32 is connected to the outer periphery of the fixing ring 31, and the end of the water outlet pipe 32 is connected to the inside of the fixing ring 31. A mechanical sealing structure consisting of a dynamic ring and a static ring is provided between the fixing ring 31 and the sealing ring 33. The dynamic ring and the static ring are both made of silicon carbide material and maintain a tight fit under the action of fluid pressure. The cooling water flowing between the inner periphery of the fixing ring 31 and the outer periphery of the reinforcement end head 21 flows out through the water outlet pipe 32.

[0037] Reference Figure 3 As an embodiment of the present invention, specifically, the main roller 4 includes a chrome cylinder 41, an end sealing seat 42, a spiral piece 43, a guide seat 44 and a docking column 45. The number of the end sealing seat 42 and the guide seat 44 is two, the ends of the two guide seats 44 are fitted together, and the guide seat 44 is arranged on the inner side of the chrome cylinder 41. The docking column 45 is inserted between the ends of the two guide seats 44. The two end sealing seats 42 are respectively fitted on the ends away from the two guide seats 44, and the outer periphery of the end sealing seat 42 is sealed and fitted with the inner periphery of the chrome cylinder 41. The two spiral pieces 43 are both fitted on the inner periphery of the chrome cylinder 41, and the spiral pieces 43 are respectively located on the outer sides of the corresponding end sealing seats 42. The rotation directions of the two spiral pieces 43 are set in opposite directions. The spiral blade 43 rotates simultaneously with the chrome cylinder 41. The purpose of designing its spiral lead and angle is to generate strong tangential and fracture flow in the end cooling area, break the laminar boundary layer, thereby strengthening the convective heat exchange between the end of the chrome cylinder 41 and the cooling water, and use the weak torsional thrust it generates to assist the cooling water to flow to the end water outlet 422, avoiding the formation of a flow dead zone here; under the action of the docking column 45, it is convenient to limit and clamp the two guide seats 44, and under the limiting and fitting action of the end sealing seat 42 and the guide seat 44, it is convenient to limit and lock the end sealing seat 42 and the guide seat 44 so that they can rotate with the chrome cylinder 41, and at the same time facilitate installation and use, avoiding a significant increase in processing difficulty through an integrated setting.

[0038] Reference Figure 3 As an embodiment of the present invention, specifically, the support plate 6 and the partition 7 are both installed on the outer periphery of the guide seat 44, and the outer periphery of the support plate 6 is sealed and fitted with the inner periphery of the chrome cylinder 41. The support plate 6 and the partition 7 evenly separate the gap between the outer periphery of the guide seat 44 and the outer periphery of the chrome cylinder 41, avoiding the need for cooling water to cool a large area of ​​the inner periphery of the chrome cylinder 41, thereby ensuring the cooling uniformity of the cooling water and further ensuring the cooling effect of the chrome cylinder 41.

[0039] Reference Figure 4 and Figure 5 As an embodiment of the present invention, specifically, the end sealing seat 42 includes a seat body 421, an end water outlet hole 422 and an end water inlet hole 423. The end of the seat body 421 is flush with the end of the chrome cylinder 41. A circular through hole is opened at the center of the seat body 421. The seat body 421 is limitedly connected to the chrome cylinder 41. When the reinforced end head 21 drives the seat body 421 to rotate, the chrome cylinder 41 can be synchronously driven to rotate. The outer periphery of the seat body 421 is constructed with an end cooling channel located on the inner side of the chrome cylinder 41. The end water outlet hole 422 and the end water inlet hole 423 are both constructed Inside the seat body 421, and the number of them is set to four, the end of the end water outlet hole 422 is located between the sealing ring 33 and the reinforced end head 21, and the cooling water flowing out of the seat body 421 will flow into between the outer periphery of the reinforced end head 21 and the inner periphery of the fixed ring 31 through the end water outlet hole 422. The end water inlet hole 423 is fitted with the guide seat 44, and the cooling water flowing out of the guide seat 44 flows into the seat body 421 through the end water inlet hole 423. At this time, the temperature of the cooling water flowing in has been initially increased, thereby avoiding excessive cooling of the end of the chromium cylinder 41.

[0040] Reference Figure 6 and Figure 7As an embodiment of the present invention, specifically, the guide seat 44 includes a docking seat 441, a docking groove 442, a side plate 443, a conveying channel 444, a tapered block 445, a diversion groove 446, an internal water inlet hole 447 and an internal water outlet hole 448. One end of the docking seat 441 is limitedly fitted with the seat body 421, and a sealing treatment is performed between the docking seat 441 and the seat body 421 to ensure the sealing between the conveying pipe and the end water inlet hole 423. The docking groove 442 is constructed at the end of the docking seat 441 away from the seat body 421, and the docking groove 442 is adapted to the docking column 45. Through the docking column 45 and the docking The cooperation of the groove 442 makes the two docking seats 441 form an integral body. The side plate 443 is installed on the outer periphery of the docking seat 441 away from the seat body 421. The side plate 443 is welded to the docking seat 441. When the two docking seats 441 are fitted, the side plate 443 can provide a strong support effect on the chrome cylinder 41 from the center of the inner periphery of the chrome cylinder 41. The delivery channel 444 is constructed inside the docking seat 441, and the end of the delivery channel 444 is connected to the end water inlet 423. The tapered block 445 is fitted on the end of the docking seat 441 close to the seat body 421, and the tapered block 445 is limitedly plugged into the seat body 421. The docking seat 441 is connected to the seat body 421 by a conical block 445. When the seat body 421 rotates, the docking seat 441 can be driven to rotate together. The diverter groove 446 is constructed inside the docking seat 441, and the diverter groove 446 is connected to the inside of the reinforcement end head 21. The internal water inlet hole 447 and the internal water outlet hole 448 are staggered on the docking seat 441. The internal water inlet hole 447 is connected between the outer periphery of the docking seat 441 and the diverter groove 446. The cooling water flows into the diverter groove 446 through the reinforcement end head 21, and then flows into the gap formed by the adjacent support plate 6 through the internal water inlet hole 447 to the body of the chrome cylinder 41. For cooling, the internal water outlet hole 448 is connected between the outer periphery of the docking seat 441 and the delivery channel 444. The internal water outlet hole 448 is used to guide the cooling water in the gap between adjacent support plates 6 to flow into the delivery pipe. The cooling water in the delivery pipe enters the end cooling pipe through the end water inlet hole 423, and the cooling water in the end cooling pipe enters the fixed ring 31 through the end water outlet hole 422. The adjacent internal water outlet holes 448 and the internal water inlet holes 447 are respectively located on both sides of the same partition 7. The cooling water between the adjacent support plates 6 forms a unidirectional flow under the setting of the internal water inlet hole 447 and the internal water outlet hole 448.

[0041] Reference Figure 8As an embodiment of the present invention, specifically, the outer periphery of the support plate 6 is constructed with four guide grooves 61 distributed in a circular array about the center of the support plate 6, and the guide groove 61 is composed of a plurality of branch grooves 611. The plurality of branch grooves 611 converge at a point on the side wall of the support plate 6 near the internal water outlet hole 448 on the side close to the center of the support plate 6, and the plurality of branch grooves 611 expand outward in a fan shape away from the center of the support plate 6. When the cooling water enters the interval through the internal water inlet hole 447, the cooling water flows in sequence along the guide grooves 61 on both sides of the support plate 6. The cooling water flowing out of the internal water inlet hole 447 diffuses outward under the action of the guide grooves 61, so that the cooling water quickly contacts the inner peripheral part of the chromium cylinder 41 of the corresponding interval. When the cooling water flows toward the internal water outlet hole 448, the guide grooves 61 can quickly gather the cooling water, so that it quickly passes through the corresponding internal water outlet hole 448 and flows into the delivery channel 444.

[0042] Working principle: When in use, the water inlet connection assembly 2 is rotatably and sealedly connected to the cooling water pipe, and a driving mechanism is set on the frame 1 to provide power input to the reinforced end 21 to drive the main roller 4 to rotate. When the main roller 4 rotates, the tinned sheet passing through the main roller 4 and the auxiliary roller 5 is tempered and rolled. The cooling water in the cooling water pipe enters the main roller 4 through the water inlet pipe 22, and then evenly cools the roller body of the main roller 4 synchronously. The cooling water that has been heated after cooling cools the end of the main roller 4, thereby significantly reducing the temperature difference in the axial direction of the main roller 4.

[0043] Specifically, the cooling water in the cooling water pipe passes through the water inlet pipe 22 and then passes through the circular through hole of the seat body 421 into the diversion groove 446, and then the cooling water flows into the corresponding support plate 6 interval through the corresponding internal water inlet hole 447. When the cooling water flows out from the internal water inlet hole 447, it first spreads in a fan shape along the guide groove 61 on the side wall of the support plate 6, thereby allowing the cooling water to contact the body of the chrome cylinder 41 in the corresponding area. When the cooling water flows to the other side of the partition 7, under the action of the guide groove 61 on the side wall of the other support plate 6, the cooling water after contacting the body of the chrome cylinder 41 quickly converges and flows toward the internal water outlet hole 448, and then the cooling water converges into the delivery pipe and enters the end cooling pipe through the end water inlet hole 423, thereby cooling the end of the chrome cylinder 41. The cooled cooling water enters between the inner periphery of the fixing ring 31 and the outer periphery of the reinforced end head 21 through the end water outlet hole 422, and is then discharged through the water outlet pipe 32.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A tinplate surface rolling roller assembly, comprising a frame (1), characterized in that: The machine also includes a water inlet connection assembly (2), a drainage assembly (3), a main roller (4), an auxiliary roller (5), a support plate (6), a partition (7) and an accelerating vane (8), wherein the water inlet connection assembly (2) is rotatably connected to the frame (1), and the water inlet connection assembly (2) is connected to the end of the main roller (4), the drainage assembly (3) is mounted on the side wall of the frame (1), and the drainage assembly (3) is rotatably sealed to the side wall of the main roller (4), the auxiliary roller (5) is rotatably mounted on the frame (1), and the support plate (6) and the partition (7) are connected to the main roller (4). The accelerating vanes (8) are all installed on the inner side of the main roller (4), and the supporting plates (6) and the partitions (7) are arranged in a staggered manner. The accelerating vanes (8) are installed on the outer side of the water inlet connection assembly (2), and the accelerating vanes (8) are located on the inner side of the drainage assembly (3). When the main roller (4) rotates, the accelerating vanes (8) rotate with the main roller (4) and increase the flow rate of the cooling water. The cooling water introduced by the water inlet connection assembly (2) first cools the middle part of the main roller (4), and the water after preliminary cooling cools the end of the main roller (4) during the process of flowing to the drainage assembly (3); The main roller (4) includes a chrome cylinder (41), an end sealing seat (42), a spiral sheet (43), a flow guide seat (44) and a docking column (45); The guide seat (44) includes a docking seat (441), a docking groove (442), a side plate (443), a conveying channel (444), a tapered block (445), a diversion groove (446), an internal water inlet hole (447) and an internal water outlet hole (448). One end of the docking seat (441) is limitedly fitted with the seat body (421). The docking groove (442) is constructed at the end of the docking seat (441) away from the seat body (421), and the docking groove (442) is adapted to the docking column (45). The side plate (443) is installed on the outer periphery of the end of the docking seat (441) away from the seat body (421). The conveying channel (444) is constructed inside the docking seat (441), and the end of the conveying channel (444) is connected to the end water inlet hole (423). The conical block (445) is fitted on one end of the docking seat (441) close to the seat body (421), and the conical block (445) is limitedly plugged into the seat body (421). The diverter groove (446) is constructed inside the docking seat (441), and the diverter groove (446) is communicated with the inside of the reinforcement end (21). The internal water inlet hole (447) and the internal water outlet hole (448) are staggered and arranged on the docking seat (441). The internal water inlet hole (447) is connected between the outer periphery of the docking seat (441) and the diverter groove (446). The internal water outlet hole (448) is connected between the outer periphery of the docking seat (441) and the conveying channel (444). Adjacent internal water outlet holes (448) and internal water inlet holes (447) are respectively located on both sides of the same partition (7).

2. The tinplate surface rolling roller assembly according to claim 1, characterized in that: The water inlet connection assembly (2) comprises a reinforcement end head (21) and a water inlet pipe (22); the reinforcement end head (21) is connected to the main roller (4), and the reinforcement end head (21) and the main roller (4) are coaxially arranged; the reinforcement end head (21) is rotatably connected to the frame (1); and the water inlet pipe (22) is connected to the end of the reinforcement end head (21).

3. The tinplate surface rolling roller assembly according to claim 2, characterized in that: The drainage assembly (3) comprises a fixing ring (31), a water outlet pipe (32) and a sealing ring (33), wherein the sealing ring (33) is attached to the end of the main roller (4), and the sealing ring (33) is located outside the reinforcement end (21), the fixing ring (31) is mounted on the frame (1), the water outlet pipe (32) is connected to the outer periphery of the fixing ring (31), and the end of the water outlet pipe (32) is communicated with the interior of the fixing ring (31).

4. The tinplate surface rolling roller assembly according to claim 1, characterized in that: The number of the end sealing seats (42) and the guide seats (44) is two, the ends of the two guide seats (44) are fitted together, and the guide seats (44) are arranged on the inner side of the chrome cylinder (41), the docking column (45) is inserted between the ends of the two guide seats (44), the two end sealing seats (42) are respectively fitted on the ends of the two guide seats (44) away from each other, and the outer periphery of the end sealing seat (42) is sealed and fitted with the inner periphery of the chrome cylinder (41), the two spiral pieces (43) are both fitted on the inner periphery of the chrome cylinder (41), and the spiral pieces (43) are respectively located on the outer sides of the corresponding end sealing seats (42), and the rotation directions of the two spiral pieces (43) are arranged in opposite directions.

5. The tinplate surface rolling roller assembly according to claim 4, characterized in that: The support plate (6) and the partition plate (7) are both mounted on the outer periphery of the guide seat (44), and the outer periphery of the support plate (6) is sealed and fitted with the inner periphery of the chrome cylinder (41).

6. The tinplate surface rolling roller assembly according to claim 4, characterized in that: The end sealing seat (42) comprises a seat body (421), an end water outlet hole (422) and an end water inlet hole (423); the end of the seat body (421) is flush with the end of the chrome cylinder (41), and the outer periphery of the seat body (421) is configured with an end cooling channel located inside the chrome cylinder (41); the end water outlet hole (422) and the end water inlet hole (423) are both configured inside the seat body (421), and the number of the end water outlet hole (422) and the end water inlet hole (423) are both configured to be four; the end of the end water outlet hole (422) is located between the sealing ring (33) and the reinforcement end head (21); and the end water inlet hole (423) is configured to fit the guide seat (44).

7. The tinplate surface rolling roller assembly according to claim 6, characterized in that: The outer periphery of the support plate (6) is constructed with four guide grooves (61) distributed in a circular array about the center of the support plate (6), and the guide grooves (61) are composed of a plurality of branch grooves (611). The plurality of branch grooves (611) converge at a point on the side wall of the support plate (6) near the center of the support plate (6) and near the internal water outlet hole (448), and the plurality of branch grooves (611) expand outward in a fan shape away from the center of the support plate (6).

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