Multifunctional plate production line

Abstract

This application discloses a multifunctional sheet metal production line, comprising: a calendering machine, a cooling roller assembly mounted on the calendering machine, a cooling support arranged behind the cooling roller assembly, an edge trimming machine detachably mounted on the cooling support, and a corrugated forming machine mounted below the cooling support. The calendering machine includes a frame and an upper roller, a middle roller, and a lower roller rotatably mounted on the frame from top to bottom. The cooling roller assembly includes a plurality of cooling rollers spaced apart from front to back. The cooling support extends in the front-to-back direction and includes a head end connected to the cooling roller assembly and a tail end capable of vertical movement. The corrugated forming machine includes a forming frame and at least one forming roller assembly arranged sequentially from front to back on the forming frame. Each forming roller assembly includes an upper corrugated forming roller and a lower corrugated forming roller arranged opposite each other, with the upper and lower corrugated forming rollers pressing against each other. This application enables a single production line to stably produce both flat and corrugated sheet products, reducing production costs.

Description

Technical Field

[0001] This application relates to the field of sheet metal production equipment technology, and in particular to a multifunctional sheet metal production line. Background Technology

[0002] In traditional PC sheet production, flat sheets and corrugated sheets require separate production lines, which results in problems such as large equipment investment, low switching efficiency, and high energy consumption. Existing equipment cannot achieve stable switching between the production of flat sheets and corrugated sheets in the same unit. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, the purpose of this application is to provide a multi-functional sheet metal production line that allows both flat sheet products and corrugated sheet products to share a single production line.

[0004] To achieve the above objectives, this application adopts the following technical solution: a multi-functional sheet metal production line, comprising:

[0005] A calendering machine includes a frame and an upper roller, a middle roller, and a lower roller that are rotatably mounted on the frame from top to bottom, wherein the middle roller and the lower roller are parallel to the upper roller;

[0006] A cooling roller assembly is installed on the calendering machine and located behind the upper roller. The cooling roller assembly includes a plurality of cooling rollers arranged at intervals from front to back.

[0007] A cooling bracket is arranged on the rear side of the cooling roller group. The cooling bracket extends in the front-to-back direction and includes a head end connected to the cooling roller group and a tail end away from the calendering machine. A lifting adjustment device is installed at the tail end, which is used to drive the tail end to move up and down in the vertical direction.

[0008] An edge trimming machine, detachably mounted on the aforementioned cooling bracket; and

[0009] A wave forming machine is installed on the rear side of the calendering machine and below the cooling bracket. The wave forming machine includes a forming frame and at least one forming roller group arranged sequentially from front to back on the forming frame. Each forming roller group includes an upper wave forming roller and a lower wave forming roller arranged opposite each other, and the upper wave forming roller and the lower wave forming roller are pressed and contacted with each other.

[0010] In the above technical solution, a further preferred embodiment includes a first opening and closing mechanism and a second opening and closing mechanism installed on the frame. The first opening and closing mechanism is drivenly connected to the upper roller to adjust the gap between the upper roller and the middle roller, and the second opening and closing mechanism is drivenly connected to the lower roller to adjust the gap between the lower roller and the middle roller.

[0011] In the above technical solution, a further preferred embodiment is that the lifting adjustment device is a lifting cylinder.

[0012] In the above technical solution, a further preferred embodiment is that the cooling bracket includes a plurality of cooling rollers arranged at intervals from front to back, and the plurality of cooling rollers are all parallel to the upper roller.

[0013] In the above technical solution, it is further preferred that the edge trimming machine includes at least a pair of cutters arranged at intervals along the left and right directions, each of the cutters being configured to be movable in the left and right directions and to be able to rotate about a center line extending in the left and right directions.

[0014] In the above technical solution, it is further preferred that the surface temperature of the upper wave-forming roller and the lower wave-forming roller is 150℃-180℃.

[0015] In the above technical solution, it is further preferred that at least one of the upper wave forming roller and the lower wave forming roller is internally heated with oil.

[0016] In the above technical solution, it is further preferred that the roller surface of each of the upper wave forming rollers is formed with a plurality of annular grooves arranged at intervals in the left-right direction, and the roller surface of each of the lower wave forming rollers is formed with a plurality of annular protrusions arranged at intervals in the left-right direction. The plurality of annular grooves of each of the upper wave forming rollers correspond one-to-one with the plurality of annular protrusions of the corresponding lower wave forming rollers and cooperate with each other.

[0017] In the above technical solution, it is further preferred that the upper roller, middle roller and lower roller each have a plurality of input channels and a plurality of output channels extending spirally in the left and right direction. The plurality of input channels and the plurality of output channels are alternately distributed along the circumference of the roller, and the flow direction of the input channels is opposite to that of the output channels.

[0018] In the above technical solution, it is further preferred that each of the input channels has a first end and a second end that are far apart from each other, each of the output channels has a third end on the same side as the first end and a fourth end on the same side as the second end, at least one pair of water inlets are arranged side by side at the first end of each of the input channels, at least one pair of water outlets are arranged side by side at the third end of each of the output channels, and in the rotation direction of the roller, the second end of each of the input channels is in fluid communication with the fourth end of the downstream adjacent output channel.

[0019] Compared with the prior art, this application achieves the following beneficial effects:

[0020] This application enables a single production line to stably produce both flat and corrugated sheets by combining a calendering machine and a corrugated forming machine, as well as by changing the sheet threading method, thereby reducing production costs and shortening product changeover time. Attached Figure Description

[0021] Figure 1 A front view of a multifunctional sheet metal production line in the first production mode provided in an embodiment of this application;

[0022] Figure 2 for Figure 1 A top view of the multi-functional sheet metal production line in the middle;

[0023] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0024] Figure 4 A front view of a multifunctional sheet metal production line in a second production mode, provided as an embodiment of this application;

[0025] Figure 5 for Figure 1 A schematic diagram of the internal structure of the upper roller in the middle;

[0026] Figure 6 For along Figure 5 A sectional view cut along the BB line;

[0027] Figure 7 for Figure 5 A schematic diagram of the flow channel of the upper roller;

[0028] Figure 8 for Figure 4 A schematic diagram of the forming roller assembly of the wave forming machine;

[0029] Figure 9 for Figure 4 A schematic diagram of the structure of the corrugated board produced in China.

[0030] The components include: 100. Multifunctional sheet production line; 1. Calendering machine; 11. Frame; 12. Upper roller; 121. Roller body assembly; 1211. Inner liner; 1212. Outer roller body; 1213. Partition plate; 122. Left shaft head assembly; 1220. Output channel; 1221. Hollow shaft; 1222. Inner tube; 1223. Shaft head end cap; 12231. Input branch; 12232. Output branch; 1224. Distributor; 123. Right shaft head assembly; 124. Input flow channel; 1241. First end; 1242. Second end; 1243. Water inlet; 125. Output flow channel; 1251. Third end; 1252. Fourth end; 1253, Water outlet; 13, Middle roller; 14, Lower roller; 15, First opening and closing mechanism; 16, Second opening and closing mechanism; 17, First moving mechanism; 2, Cooling roller group; 21, Cooling roller; 3, Cooling bracket; 31, First end; 32, Tail end; 33, Cooling support roller; 4, Edge trimming machine; 41, Cutting knife; 5, Wave forming machine; 51, Forming frame; 52, Forming roller group; 521, Upper wave forming roller; 5210, Annular groove; 522, Lower wave forming roller; 5220, Annular protrusion; 53, Second moving mechanism; 54, Pressing cylinder; 6, Transition roller; 7, Lifting and adjusting device; 8, Control panel; 200, Flat plate; 300, Wave plate. Detailed Implementation

[0031] To illustrate the technical content, structural features, achieved objectives, and effects of the application in detail, the technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. In the following description, for illustrative purposes, numerous specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in one or more equivalent arrangements. Furthermore, the various exemplary embodiments may differ, but are not necessarily exclusive. For example, the specific shape, structure, and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.

[0032] This application provides a multifunctional board production line that can produce corrugated boards and flat boards, thereby increasing the applicability of the production line and effectively reducing production costs.

[0033] like Figure 1 , 2As shown in Figure 4, the multi-functional sheet production line 100 includes a calendering machine 1, a cooling roller group 2, and a cooling support 3 arranged sequentially from front to back, as well as a corrugated forming machine 5 located below the cooling support 3. This multi-functional sheet production line 100 has a first production mode for producing flat sheets 200 and a second production mode for producing corrugated sheets 300. In the first production mode, sheet material extruded from the extrusion die is sequentially passed through the calendering machine 1, the cooling roller group 2, and the cooling support 3 from front to back, finally forming a shaped flat sheet 200. In the second production mode, sheet material extruded from the extrusion die is sequentially passed through the calendering machine 1, the corrugated forming machine 5, and the cooling support 3 from front to back, finally forming a corrugated sheet 300. Flat sheets 200 and corrugated sheets 300 share the same production line for production.

[0034] The calendering machine 1 includes a frame 11 and an upper roller 12, a middle roller 13 and a lower roller 14 that are rotatably mounted on the frame 11 from top to bottom. The upper roller 12, the middle roller 13 and the lower roller 14 are connected to a roller temperature control device (not shown in the figure). The roller temperature control device monitors the roller surface temperature of each roller in real time, so that each roller presses the sheet material at a suitable roller surface temperature.

[0035] like Figure 5-7 As shown, the upper roller 12 includes a roller body assembly 121, a left shaft head assembly 122 connected to the left end of the roller body assembly 121, and a right shaft head assembly 123 connected to the right end of the roller body assembly 121. The roller body assembly 121 includes a cylindrical inner liner 1211 and an outer roller body 1212 coaxially sleeved on the inner liner 1211. The inner liner 1211 and the outer roller body 1212 are separated by a spirally extending partition 1213 into a plurality of input channels 124 and a plurality of output channels 125 spirally extending in the left and right direction. The plurality of input channels 124 and the plurality of output channels 125 are alternately distributed along the circumference of the upper roller 12, and the flow direction of the input channels 124 is opposite to the flow direction of the output channels 125.

[0036] Each input channel 124 has a first end 1241 and a second end 1242 that are far apart from each other. Each output channel 125 has a third end 1251 on the same side as the first end 1241 and a fourth end 1252 on the same side as the second end 1242. At least one pair of inlets 1243 are arranged side by side at the first end 1241 of each input channel 124, and at least one pair of outlets 1253 are arranged side by side at the third end 1251 of each output channel 125. In the rotation direction of the upper roller 12, the partition 1213 between the second end 1242 of each input channel 124 and the fourth end 1252 of the downstream adjacent output channel 125 has a notch to fluidly connect the input channel 124 with the corresponding output channel 125, so that a unidirectional fluid transport path is formed between the at least one pair of inlets 1243 and the at least one pair of downstream adjacent outlets 1253. At least one pair of inlets 1243 in the input flow channel 124 and at least one pair of outlets 1253 in the output flow channel 125 can increase the flow rate in each fluid transport path, accelerate the cooling speed of the outer roller body 1212, and improve the cooling efficiency of the upper roller 12. Both the inlets 1243 and the outlets 1253 are located on the inner liner 1211.

[0037] The left shaft head assembly 122 includes a hollow shaft 1221 with an output channel 1220, an inner tube 1222 coaxially passing through the output channel 1220, a shaft head end cap 1223 coaxially sleeved on the hollow shaft 1221, and a distributor 1224. The shaft head end cap 1223 has multiple input branches 12231 and multiple output branches 12232. The multiple input branches 12231 are connected to the water inlets 1243 on the inner liner 1211, and the multiple output branches 12232 are connected to the water outlets 1253 on the inner liner 1211.

[0038] The distributor 1224 is simultaneously connected to the output channel 1220 of the hollow shaft 1221, the inner tube 1222, and multiple input branches 12231 and multiple output branches 12232 of the shaft end cover 1223. The distributor 1224 connects the inner tube 1222 to multiple input branches 12231 and connects multiple output branches 12232 to the output channel 1220, so that the inner tube 1222, multiple input branches 12231, multiple input channels 124, multiple output channels 125, multiple output branches 12232 and output channel 1220 are connected in sequence to form a cooling water circulation path. The left shaft end assembly 122 enables the upper roller 12 to achieve single-sided water inlet and outlet, which facilitates the maintenance and replacement of the roller.

[0039] The middle roller 13 and the lower roller 14 have the same structure as the upper roller 12, and will not be described in detail here.

[0040] like Figure 1As shown, the upper roller 12 is driven by a first opening and closing mechanism 15, and can move closer to or further away from the middle roller 13 under the drive of the first opening and closing mechanism 15, thereby adjusting the gap between the upper roller 12 and the middle roller 13. The lower roller 14 is driven by a second opening and closing mechanism 16, and can move closer to or further away from the middle roller 13 under the drive of the second opening and closing mechanism 16, thereby adjusting the gap between the lower roller 14 and the middle roller 13. The first opening and closing mechanism 15 and the second opening and closing mechanism 16 change the size of the gap between the upper roller 12, the middle roller 13 and the lower roller 14, so that the calendering machine 1 can adapt to the production of products of different thicknesses, and the adjustment operation is convenient, efficient and does not delay the production of the entire production line.

[0041] The cooling roller assembly 2 is installed on the calendering machine 1 and located behind the upper roller 12. The cooling roller assembly 2 includes several cooling rollers 21 arranged at intervals from front to back. Each cooling roller 21 is connected to the roller temperature control device, which circulates cold water into it to initially cool the sheet material and prevent the sheet material from deforming and cracking.

[0042] like Figure 1 , 2 As shown in Figure 4, the cooling support 3 is arranged behind the cooling roller group 2. The cooling support 3 extends in the front-to-back direction and includes a head end 31 connected to the cooling roller group 2 and a tail end 32 away from the calendering machine 1. The head end 31 is located in front of the tail end 32. The sheet material is slowly conveyed from front to back on the cooling support 3, during which internal stress is released and natural cooling occurs. The cooling support 3 includes a number of cooling rollers 33 arranged at intervals from front to back. Each cooling roller 33 can rotate around its own axis extending in the left-to-right direction. The cooling rollers 33 support the sheet material from below, which on the one hand prevents the sheet material from sagging and deforming under the influence of gravity, and on the other hand reduces the friction between the sheet material and the cooling support 3 to facilitate the conveying of the sheet material.

[0043] A lifting adjustment device 7 is installed at the tail end 32. The lifting adjustment device 7 is used to drive the tail end 32 to move up and down in the vertical direction to adjust the height of the cooling bracket 3, so that the cooling bracket 3 is adapted to the threading and conveying of flat products in the first production mode and adapted to the threading and conveying of corrugated plates in the second production mode. In this embodiment, the lifting adjustment device 7 is a lifting cylinder.

[0044] like Figure 1-4 As shown, a trimming machine 4 is also installed on the cooling tray 3. The trimming machine 4 is used to cut off the waste edges on the left and right sides of the product on the cooling tray 3. The trimming machine 4 is detachably installed on the cooling tray 3. When the production mode of the multi-functional board production line 100 is switched, the trimming machine 4 adjusts its position on the cooling tray 3 to adapt to the trimming work in different production modes.

[0045] The edge trimming machine 4 includes at least a pair of cutters 41 spaced apart in a left-right direction. Each cutter 41 is configured to move left and right and rotate about a center line extending in the left-right direction. The position of each cutter 41 is adjusted in the left-right direction to adjust the width of the trimmed edge, so that the product after removing the waste edge meets production requirements. Each cutter 41 can rotate the cutting angle to adapt to trimming edges of products with different thicknesses.

[0046] like Figure 1 , 4 As shown in Figures 8 and 9, the wave forming machine 5 is installed behind the calendering machine 1 and below the cooling support 3. The wave forming machine 5 includes a forming frame 51 and at least one forming roller group 52 arranged sequentially from front to back on the forming frame 51. Each forming roller group 52 includes an upper wave forming roller 521 and a lower wave forming roller 522 arranged opposite each other, with the upper and lower wave forming rollers 521 and 522 pressing against each other. The roller surface of each upper wave forming roller 521 has a plurality of annular grooves 5210 arranged at intervals in the left-right direction, and each annular groove 5210 surrounds the circumference of the upper wave forming roller 521. The roller surface of each lower wave forming roller 522 has a plurality of annular protrusions 5220 arranged at intervals in the left-right direction, and each annular protrusion 5220 surrounds the circumference of the lower wave forming roller 522. The plurality of annular grooves 5210 of each upper wave forming roller 521 correspond one-to-one with the plurality of annular protrusions 5220 of the corresponding lower wave forming roller 522 and cooperate with each other. After being pressed by the calendering machine 1, the sheet material enters the corrugated forming machine 5, where it is pressed together by the upper corrugated forming roller 521 and the lower corrugated forming roller 522. The annular protrusions 5220 and the annular grooves 5210 work together to deform the sheet material into a corrugated plate 300 that is wavy and curved.

[0047] At least one of the upper wave-forming roller 521 and the lower wave-forming roller 522 of the wave forming machine 5 is connected to a roller temperature control device. Hot oil is introduced through the roller temperature control device to control the roller surface temperature of the upper wave-forming roller 521 and the lower wave-forming roller 522 at 150℃-180℃. Within this temperature range, the stress release, strength and hardness of the sheet material are reduced. The upper wave-forming roller 521 and the lower wave-forming roller 522 can quickly press the sheet material into a wave plate 300, thereby improving production efficiency.

[0048] The upper corrugated forming roller 521 and the lower corrugated forming roller 522 are made of high-strength 38CrMoAlA alloy steel, and the roller surface of each corrugated forming roller is nitrided to obtain an ultra-high hardness of HV900-HV980, ensuring the strength of each roller.

[0049] The wave forming machine 5 also includes at least one clamping cylinder 54. Each upper wave forming roller 521 of the forming roller group 52 is equipped with a clamping cylinder 54. The clamping cylinder 54 drives the corresponding upper wave forming roller 521 to move up and down to adjust the distance between the upper wave forming roller 521 and the lower wave forming roller 522, so as to be suitable for the production of wave plates of different thicknesses.

[0050] The calendering machine 1 is also equipped with at least one transition roller 6, which is located between the middle roller 13 and the corrugated forming machine 5. When the multi-functional sheet production line 100 is in the second production mode, the sheet material output from the extrusion die is directly conveyed to the corrugated forming machine 5 after being pressed by the middle roller 13 and the lower roller 14. The transition roller 6 supports the sheet material from bottom to top between the middle roller 13 and the corrugated forming machine 5 to prevent the sheet material from sagging and deforming due to gravity during the conveying process.

[0051] The calendering machine 1 has a first moving mechanism 17 at its bottom, which drives the calendering machine 1 to move in the front-to-back direction. The corrugated forming machine 5 has a second moving mechanism 53 at its bottom, which drives the corrugated forming machine 5 to move in the front-to-back direction. Both the calendering machine 1 and the corrugated forming machine 5 are configured to move in the front-to-back direction, which facilitates alignment with the extrusion die and subsequent maintenance of the extrusion die.

[0052] like Figure 1 , 2 As shown, the multifunctional board production line 100 also includes a control system. The control system is connected to the electrical components of the calendering machine 1, the electrical components of the corrugated forming machine 5, the roller temperature control equipment, and the lifting adjustment device 7 to control the operation of the multifunctional board production line 100. The control system includes a control screen 8 with an interactive interface. Operators can directly understand the production parameters of the production line through the control screen 8 and can also issue instructions through the control screen 8.

[0053] like Figure 1 As shown, in the first production mode of the multi-functional board production line 100, the extrusion nozzle of the extrusion die is aligned with the gap between the middle roller 13 and the lower roller 14. The sheet material extruded by the extrusion die passes over the middle roller 13 and the upper roller 12 from bottom to top and is then conveyed to the cooling roller group 2 behind the upper roller 12. The cooling roller group 2 tempers the sheet material and then conveys the material to the downstream cooling bracket 3, so that the sheet material is slowly cooled on the cooling bracket 3 to form a flat plate 200. The edge trimming machine 4 is installed close to the first end of the cooling bracket 3 to remove the waste edges on both sides of the plate 200.

[0054] like Figure 4As shown, in the second production mode of the multi-functional board production line 100, the lifting adjustment device 7 drives the tail end 32 of the cooling bracket 3 to descend. Most of the cooling bracket 3 descends to the rear of the wave forming machine 5. The extrusion nozzle of the extrusion die is aligned with the gap between the middle roller 13 and the lower roller 14. The sheet material extruded by the extrusion die is pressed by the middle roller 13 and the lower roller 14 and then directly passes through the wave forming machine 5 at the rear. The wave forming machine 5 presses the sheet material into a wave plate 300 and passes it through the cooling bracket 3. The edge trimming machine 4 moves to the rear half of the cooling bracket 3 to trim the edge of the wave plate 300. The wave plate 300 is slowly conveyed backward on the cooling bracket 3 and is naturally cooled during the conveying process.

[0055] When switching between the first and second production modes, only the lifting adjustment device 7 needs to adjust the height of the cooling bracket 3 and the operator needs to change the order of the products being threaded, which shortens the time for switching production line modes, saves time and effort, and reduces production costs.

[0056] This application enables a single production line to stably produce both flat and corrugated sheets by combining a calendering machine and a corrugated forming machine, as well as by changing the sheet threading method, thereby reducing production costs and shortening product changeover time.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made without departing from the spirit and scope of this application. The scope of protection claimed by this application is defined by the appended claims, specification, and their equivalents.

Claims

1. A multifunctional board production line, characterized in that, include: A calendering machine includes a frame and an upper roller, a middle roller, and a lower roller that are rotatably mounted on the frame from top to bottom, wherein the middle roller and the lower roller are parallel to the upper roller; A cooling roller assembly is installed on the calendering machine and located behind the upper roller. The cooling roller assembly includes a plurality of cooling rollers arranged at intervals from front to back. A cooling bracket is arranged on the rear side of the cooling roller group. The cooling bracket extends in the front-to-back direction and includes a head end connected to the cooling roller group and a tail end away from the calendering machine. A lifting adjustment device is installed at the tail end, which is used to drive the tail end to move up and down in the vertical direction. The edge trimming machine is detachably mounted on the cooling bracket. as well as A wave forming machine is installed on the rear side of the calendering machine and below the cooling bracket. The wave forming machine includes a forming frame and at least one forming roller group arranged sequentially from front to back on the forming frame. Each forming roller group includes an upper wave forming roller and a lower wave forming roller arranged opposite each other, and the upper wave forming roller and the lower wave forming roller are pressed and contacted with each other.

2. The multifunctional board production line according to claim 1, characterized in that, It also includes a first opening and closing mechanism and a second opening and closing mechanism installed on the frame. The first opening and closing mechanism is drivenly connected to the upper roller to adjust the gap between the upper roller and the middle roller, and the second opening and closing mechanism is drivenly connected to the lower roller to adjust the gap between the lower roller and the middle roller.

3. The multifunctional board production line according to claim 1, characterized in that, The lifting adjustment device is a lifting cylinder.

4. The multifunctional sheet metal production line according to claim 1, characterized in that, The cooling bracket includes a plurality of cooling rollers arranged at intervals from front to back, and all of the cooling rollers are parallel to the upper roller.

5. The multifunctional sheet metal production line according to claim 1, characterized in that, The edge trimming machine includes at least one pair of cutters arranged at intervals in the left-right direction, each cutter being configured to be movable in the left-right direction and rotatable about a center line extending in the left-right direction.

6. The multifunctional sheet metal production line according to claim 1, characterized in that, The surface temperature of the upper and lower wave-forming rollers is 150℃-180℃.

7. The multifunctional sheet metal production line according to claim 6, characterized in that, At least one of the upper and lower wave-forming rollers is internally heated with oil.

8. The multifunctional board production line according to claim 1, characterized in that, Each of the upper wave forming rollers has a plurality of annular grooves arranged at intervals in the left-right direction on its roller surface, and each of the lower wave forming rollers has a plurality of annular protrusions arranged at intervals in the left-right direction on its roller surface. The plurality of annular grooves of each of the upper wave forming rollers correspond one-to-one with the plurality of annular protrusions of the corresponding lower wave forming rollers and cooperate with each other.

9. The multifunctional sheet metal production line according to claim 1, characterized in that, The upper, middle, and lower rollers each have several input channels and several output channels that extend spirally in the left-right direction. The input channels and output channels are alternately distributed along the circumference of the rollers, and the flow direction of the input channels is opposite to that of the output channels.

10. The multifunctional sheet metal production line according to claim 9, characterized in that, Each of the aforementioned input channels has a first end and a second end that are far apart from each other, and each of the aforementioned output channels has a third end on the same side as the first end and a fourth end on the same side as the second end. At least one pair of inlets are arranged side by side at the first end of each of the aforementioned input channels, and at least one pair of outlets are arranged side by side at the third end of each of the aforementioned output channels. In the rotation direction of the roller, the second end of each of the aforementioned input channels is in fluid communication with the fourth end of the downstream adjacent output channel.

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