Multi-layer rolling device

Abstract

The utility model relates to a multilayer rolling device which comprises a base, a plurality of rolling units are arranged on the base, each rolling unit comprises a plurality of rolling supports arranged at intervals, and at least two pressing roller assemblies are arranged on each rolling support in the vertical direction. Each pressing roller assembly comprises a driving pressing roller and a driven pressing roller, and the driving pressing rollers on the same rolling support are in transmission connection through a chain; the base is further provided with a driving mechanism, and one driving pressing roller on the same rolling support is in transmission connection with the driving mechanism. According to the utility model, each compression roller assembly can be used for rolling and forming one material, and at least two compression roller assemblies are arranged, so that at least two materials can be rolled and formed at the same time, the processing efficiency can be improved, materials with different thicknesses can be selected for processing according to the load-bearing requirement, and the raw materials can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel section rolling devices, in particular to a multi-layer rolling device. Background Art

[0002] With the growing demand for lightweight automobile design, the existing method of increasing the thickness of the material to improve the strength of the rolled steel can no longer meet this requirement. In order to meet the requirements of lightweight automobiles, the industry has begun to develop various complex roll-formed steel sections. This section reduces the material thickness by increasing the internal reinforcing ribs of the rolled steel while ensuring that the strength of the rolled steel remains unchanged or increased. The existing roll-forming manufacturing process of complex roll-formed steel sections is complex and requires many forming passes. Therefore, the existing complex roll-formed steel production equipment occupies a large area, has high energy consumption, large equipment investment, long debugging cycle, and difficult to control product quality. In addition, because the existing roll-forming is a sheet of raw material processed by rolling, the wall thickness of the rolled steel is equal, resulting in some material waste.

[0003] Reducing the weight of roll-rolled steel while ensuring the strength of roll-rolled steel, reducing production costs and improving product quality are issues that the entire industry urgently needs to solve. Summary of the invention

[0004] In view of the defects in the prior art, the technical problem to be solved by the utility model is to provide a multi-layer rolling device so as to roll a plurality of materials simultaneously.

[0005] In order to solve the above technical problems, the utility model provides a multi-layer rolling device, including a base, on which a plurality of rolling units are arranged, the rolling units include a plurality of rolling brackets arranged at intervals, and at least two pressing roller assemblies are arranged on the rolling bracket in a vertical direction; the pressing roller assembly includes an active pressing roller and a driven pressing roller, and each of the active pressing rollers on the same rolling bracket is connected by a chain transmission; a driving mechanism is also provided on the base, and one of the active pressing rollers on the same rolling bracket is transmission-connected to the driving mechanism.

[0006] Preferably, the driving mechanism comprises a motor and a plurality of reducers drivingly connected to the output shaft of the motor, and the output shafts of the reducers are drivingly connected to the corresponding active pressure rollers.

[0007] Preferably, the rolling unit also includes a clutch device installed on the base, which includes a first half-clutch, a second half-clutch and a first drive device; the first half-clutch is non-rotatably connected to the corresponding active pressure roller, and the second half-clutch is non-rotatably and slidably connected to the corresponding output shaft of the reducer, and the second half-clutch can slide relative to the output shaft of the reducer under the action of the first drive device to engage or disengage with the first half-clutch.

[0008] Preferably, an annular groove is provided on the outer periphery of the second half-clutch; the first driving device includes a rotating shaft, and the two ends of the rotating shaft are respectively rotatably connected to two supports, and the supports are fixedly connected to the base, and the first driving device also includes a second driving device that drives the rotating shaft to rotate; a group of toggle mechanisms are provided on the rotating shaft at a position corresponding to the second half-clutch, and the toggle mechanism includes two first connecting rods, and the two first connecting rods are respectively located on both sides of the second half-clutch; one end of the first connecting rod is connected to the rotating shaft to prevent rotation, and the other end is rotatably connected to a roller, and the axis of the roller is parallel to the axis of the rotating shaft; the two rollers of the same toggle mechanism are both inserted into the corresponding annular groove of the second half-clutch.

[0009] Preferably, the second driving device comprises a telescopic cylinder and a second connecting rod, wherein the cylinder barrel end of the telescopic cylinder is hinged to the base, one end of the second connecting rod is non-rotatably connected to the rotating shaft, and the other end is hinged to the cylinder rod end of the telescopic cylinder.

[0010] Preferably, the second half clutch is key-linked to the output shaft of the corresponding reducer, a keyway is provided on the output shaft of the reducer along its axial direction, and the keyway passes through the free end of the output shaft of the reducer.

[0011] Preferably, the two ends of the active pressure roller are rotatably connected to the two first mounting blocks respectively, and the two ends of the driven pressure roller are rotatably connected to the two second mounting blocks respectively; the first mounting block is fixedly connected to the roller pressing bracket, and the second mounting block is slidably connected to the roller pressing bracket in the vertical direction; the roller pressing bracket is provided with an adjustment mechanism for adjusting the sliding position of the second mounting block.

[0012] Preferably, the adjustment mechanism includes a first adjustment device, which is used to adjust the sliding position of the second mounting block located at the top; the first adjustment device includes a first screw rod and a first nut that are threadedly connected, the first nut is rotatably connected to the top of the rolling bracket, and the bottom of the first screw rod is fixedly connected to the corresponding second mounting block.

[0013] Preferably, the adjustment mechanism includes a second adjustment device, which includes a first adjustment block, a second adjustment block and a second screw rod. The first adjustment block and the second adjustment block are both provided with through holes for the second screw rod to pass through. Two second nuts and two third nuts are threadedly connected to the second screw rod. The two second nuts are respectively located on the upper and lower sides of the first adjustment block, and the two third nuts are respectively located on the upper and lower sides of the second adjustment block; the first mounting block and the second mounting block corresponding to the same pressure roller assembly are respectively fixedly connected to the first adjustment block and the second adjustment block.

[0014] The utility model has the following beneficial effects: in the utility model, at least two roller assemblies are arranged on each roller support in the vertical direction, each roller assembly includes an active roller and a driven roller, and each active roller on the same roller support is connected by a chain transmission, so under the action of the driving mechanism, all active rollers of the same roller support can rotate synchronously. When in use, each roller assembly can roll-form a material, and the utility model has at least two roller assemblies, so at least two materials can be roll-formed at the same time, which is beneficial to improve processing efficiency, and materials of different thicknesses can be selected for processing according to load-bearing requirements, which is beneficial to saving raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0016] Figure 1 It is a structural schematic diagram of a multi-layer rolling device according to an embodiment of the utility model;

[0017] Figure 2 A top view of a multi-layer rolling device according to an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the rolling unit and the driving mechanism of an embodiment of the utility model;

[0019] Figure 4 for Figure 3 A partial enlarged view of

[0020] Figure 5 This is a schematic diagram of the connection structure between the clutch device and the reducer in an embodiment of the utility model;

[0021] Figure 6 It is a partial structural schematic diagram of the first driving device of an embodiment of the utility model;

[0022] Figure 7 It is a structural schematic diagram of the adjustment mechanism of an embodiment of the utility model;

[0023] Figure 8 for Figure 7 A partial enlarged view of B.

[0024] Reference numerals:

[0025] 1-rolling unit; 11-rolling bracket; 111-first mounting block; 112-second mounting block; 113-first adjusting device; 1131-first screw rod; 1132-first nut; 114-second adjusting device; 1141-first adjusting block; 1142-second adjusting block; 1143-second screw rod; 1144-second nut; 1145-third nut; 12-pressure roller assembly; 121-active pressure roller; 122-driven pressure roller; 13-chain; 14-clutch device; 141-first half clutch; 142-second half clutch; 1421-annular groove; 143-rotating shaft; 144-support; 145-sliding mechanism; 1451-first connecting rod; 1452-roller; 146-telescopic cylinder; 147-second connecting rod; 2-driving mechanism; 21-motor; 22-reducer. DETAILED DESCRIPTION

[0026] Here, it should be noted that the functions and methods involved in the present invention are merely conventional adaptive applications of the prior art. Therefore, the improvement of the present invention on the prior art is essentially the connection relationship between the hardware, rather than the functions and methods themselves. That is, although the present invention involves some functions and methods, it does not include improvements to the functions and methods themselves. The description of the functions and methods in the present invention is to better illustrate the present invention so as to better understand the present invention.

[0027] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0028] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, this embodiment provides a multi-layer rolling device, including a base (not shown in the figure), on which three groups of rolling units 1 are arranged, and the rolling units 1 include four rolling brackets 11 arranged at intervals, and two roller assemblies 12 are arranged on the rolling brackets 11 in the vertical direction. In this embodiment, the base is an installation base on the production line. According to the processing requirements of the steel section, a corresponding number of rolling units 1 can be arranged on the base. In this embodiment, the rolling units 1 are set as three groups. Correspondingly, the number of rolling brackets 11 of each rolling unit 1 can also be adaptively designed. In this embodiment, the number of rolling brackets 11 is four. In addition, the number of roller assemblies 12 can also be reasonably designed according to the processing requirements of the steel section. In this embodiment, the steel section to be processed can be formed by rolling and welding two materials. Therefore, the number of roller assemblies 12 is two. In practice, the number of roller assemblies 12 is determined according to the number of materials required for the steel section forming, and each material corresponds to a roller assembly 12.

[0030] Each roller assembly 12 includes an active roller 121 and a passive roller 122. The active rollers 121 on the same roller support 11 are connected by a chain 13 to achieve synchronous rotation of the active rollers 121 on the same roller support 11. When the material passes between the corresponding active roller 121 and the passive roller 122, the active roller 121 drives the material to move, and the passive roller 122 rotates passively under the friction of the material. During the movement of the material, the forming rollers on the active roller 121 and the passive roller 122 roll the material. The cross-sectional shape and size of the steel section processed each time need to be calculated and simulated. The multi-layer roller pressing device of this embodiment has two roller assemblies 12, which divide the cross section into upper and lower layers for welding and forming while ensuring strength. The number of upper and lower rollers to be arranged should be determined according to the current cross-sectional division requirements.

[0031] The base is also provided with a driving mechanism 2, and one of the active pressing rollers 121 on the same rolling support 11 is in transmission connection with the driving mechanism 2. In this embodiment, the active pressing roller 121 located at the bottom is in transmission connection with the driving mechanism 2.

[0032] Specifically, the driving mechanism 2 includes a motor 21 and a plurality of reducers 22 that are transmission-connected to the output shaft of the motor 21, and the output shafts of the reducers 22 are transmission-connected to the corresponding active rollers 121. In this embodiment, the output shaft of the motor 21 is connected to the commutator, and the two output shafts of the commutator are respectively connected to the input shafts of the reducers 22 located on both sides thereof through a double-row roller chain, and the input shafts of the reducers 22 located on the same side of the motor 21 are sequentially connected in series through a double-row roller chain, and the output shaft of each reducer 22 is transmission-connected to the corresponding active roller 121. When in use, the active roller 121 of the rolling support 11 facing the motor 21 cannot be directly connected to the driving mechanism 2, so the active roller 121 of the rolling support has no power input, and can be passively rotated under the friction of the material to achieve rolling of the material. For a rolling device with a small number of rolling units 1, the motor 21 can be set at the end so that the active pressing roller 121 of each rolling bracket 11 can be connected to the output shaft of the reducer 22 to ensure that each active pressing roller 121 has power input.

[0033] Furthermore, the rolling unit 1 further comprises a clutch device 14 mounted on the base, and the clutch device 14 comprises a first half clutch 141, a second half clutch 142 and a first driving device. The first half clutch 141 is connected to the corresponding active pressure roller 121 in a non-rotating manner, and the second half clutch 142 is connected to the output shaft of the corresponding reducer 22 in a non-rotating and sliding manner. The second half clutch 142 can slide relative to the output shaft of the reducer 22 under the action of the first driving device to engage or disengage with the first half clutch 141. When the first half clutch 141 is engaged with the second half clutch 142, the torque of the output shaft of the reducer 22 can be transmitted to the corresponding active pressure roller 121 to drive all active pressure rollers 121 of the corresponding rolling bracket 11 to rotate synchronously. In this embodiment, the rolling unit 1 has a base plate, and each rolling bracket 11 of the rolling unit 1 is installed on the base plate, and a lifting ring is provided on the base plate for easy lifting. When the first half clutch 141 and the second half clutch 142 are separated, the torque cannot be transmitted, and the rolling unit 1 can be disassembled and assembled as a whole.

[0034] Specifically, the second half clutch 142 is key-linked with the output shaft of the corresponding reducer 22, and a keyway is provided on the output shaft of the reducer 22 along its axial direction, and the keyway passes through the free end of the output shaft of the reducer 22, so that the key on the second half clutch 142 can slide in the keyway, thereby realizing the circumferential rotation-stopping and axial sliding connection between the second half clutch 142 and the output shaft of the reducer 22. In addition, an annular groove 1421 is provided on the outer periphery of the second half clutch 142, and the first driving device acts on the annular groove 1421 to drive the second half clutch 142 to slide relative to the output shaft of the reducer 22.

[0035] The first driving device includes a rotating shaft 143, and the two ends of the rotating shaft 143 are respectively connected to two supports 144 for rotation, and the supports 144 are fixedly connected to the base. The first driving device also includes a second driving device for driving the rotating shaft 143 to rotate. A group of toggle mechanisms 145 are arranged at the position of the rotating shaft 143 corresponding to the second half clutch 142, and the toggle mechanism 145 includes two first connecting rods 1451, and the two first connecting rods 1451 are respectively located on both sides of the second half clutch 142; one end of the first connecting rod 1451 is connected to the rotating shaft 143 for rotation, and the other end is connected to the roller 1452 for rotation, and the axis of the roller 1452 is parallel to the axis of the rotating shaft 143; the two rollers 1452 of the same toggle mechanism 145 are both inserted into the annular groove 1421 of the corresponding second half clutch 142.

[0036] In this embodiment, the second driving device can drive the rotating shaft 143 to rotate, and the first connecting rod 1451 can be driven to rotate synchronously during the rotation of the rotating shaft 143. When the first connecting rod 1451 rotates, the roller 1452 thereon applies pressure to the corresponding side wall of the annular groove 1421, so that the second half clutch 142 moves away from or close to the first half clutch 141 to achieve separation or engagement with the first half clutch 141.

[0037] Specifically, the second driving device includes a telescopic cylinder 146 and a second connecting rod 147. The telescopic cylinder 146 is a cylinder, and its cylinder end is hinged to the base. One end of the second connecting rod 147 is connected to the rotating shaft 143 and is fixed, and the other end is hinged to the cylinder rod end of the telescopic cylinder 146. When the cylinder rod end of the telescopic cylinder 146 is extended or retracted, the second connecting rod 147 can be driven to rotate clockwise or counterclockwise around the axis of the rotating shaft 143, thereby driving the rotating shaft 143 to rotate synchronously.

[0038] In this embodiment, the first connecting rod 1451 and the second connecting rod 147 are both key-connected to the rotating shaft 143 to achieve a non-rotatable connection between the first connecting rod 1451 and the second connecting rod 147 and the rotating shaft 143 .

[0039] In this embodiment, the two ends of the active pressure roller 121 are rotatably connected to the two first mounting blocks 111, and the two ends of the driven pressure roller 122 are rotatably connected to the two second mounting blocks 112; the first mounting block 111 is fixedly connected to the roller pressing bracket 11, and the second mounting block 112 is slidably connected to the roller pressing bracket 11 in the vertical direction. An adjustment mechanism for adjusting the sliding position of the second mounting block 112 is provided on the roller pressing bracket 11, so as to adjust the distance between the active pressure roller 121 and the driven pressure roller 122 of the same pressure roller assembly 12 according to the forming shape of the material.

[0040] In this embodiment, the roller support 11 includes two parallel and spaced frames, the first mounting blocks 111 at both ends of the active roller 121 are fixedly connected to the two frames respectively, and the second mounting blocks 112 at both ends of the driven roller 122 are slidably connected to the two frames respectively.

[0041] The adjustment mechanism includes a first adjustment device 113 and a second adjustment device 114 , wherein the first adjustment device 113 is used to adjust the sliding position of the second mounting block 112 located at the top, and the second adjustment device 114 is used to adjust the sliding positions of the remaining second mounting blocks 112 located at the bottom.

[0042] Specifically, the first adjusting device 113 includes a first screw rod 1131 and a first nut 1132 that are threadedly connected. The first nut 1132 is rotatably connected to the top of the rolling bracket 11, and the bottom of the first screw rod 1131 is fixedly connected to the corresponding second mounting block 112. When necessary, the first nut 1132 is rotated to drive the first screw rod 1131 to rise and fall, thereby driving the second mounting block 112 to rise and fall.

[0043] Specifically, the second adjusting device 114 includes a first adjusting block 1141, a second adjusting block 1142 and a second screw rod 1143. The first adjusting block 1141 and the second adjusting block 1142 are both provided with through holes for the second screw rod 1143 to pass through. Two second nuts 1144 and two third nuts 1145 are threadedly connected to the second screw rod 1143. The two second nuts 1144 are respectively located on the upper and lower sides of the first adjusting block 1141, and the two third nuts 1145 are respectively located on the upper and lower sides of the second adjusting block 1142. The first mounting block 111 and the second mounting block 112 corresponding to the same pressure roller assembly 12 are respectively fixedly connected to the first adjusting block 1141 and the second adjusting block 1142. When necessary, the third nut 1145 can be loosened to adjust the sliding position of the corresponding second mounting block 112. After the adjustment is in place, the third nut 1145 can be tightened to keep the corresponding sliding position of the second mounting block 112.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A multi-layer rolling device, characterized in that: include: A base, on which a plurality of rolling units are arranged, wherein the rolling units include a plurality of rolling supports arranged at intervals, and at least two pressing roller assemblies are arranged on the rolling supports in a vertical direction; The pressure roller assembly comprises an active pressure roller and a driven pressure roller, and each of the active pressure rollers on the same roller pressure bracket is connected by a chain drive; The base is also provided with a driving mechanism, and one of the active pressing rollers on the same rolling support is transmission-connected to the driving mechanism.

2. The multi-layer rolling device according to claim 1, characterized in that: The driving mechanism comprises a motor and a plurality of reducers drivingly connected to the output shaft of the motor, and the output shaft of the reducer is drivingly connected to the corresponding active pressure roller.

3. The multi-layer rolling device according to claim 2, characterized in that: The rolling unit further comprises a clutch device mounted on the base, the clutch device comprising a first half clutch, a second half clutch and a first driving device; The first half-clutch is non-rotatably connected to the corresponding active pressure roller, and the second half-clutch is non-rotatably and slidably connected to the corresponding output shaft of the reducer. Under the action of the first driving device, the second half-clutch can slide relative to the output shaft of the reducer to engage or disengage with the first half-clutch.

4. The multi-layer rolling device according to claim 3, characterized in that: The outer periphery of the second half clutch is provided with an annular groove; The first driving device comprises a rotating shaft, both ends of which are rotatably connected to two supports respectively, and the supports are fixedly connected to the base, and the first driving device also comprises a second driving device for driving the rotating shaft to rotate; A group of toggle mechanisms are arranged on the rotating shaft at a position corresponding to the second half clutch, and the toggle mechanisms include two first connecting rods, and the two first connecting rods are respectively located on both sides of the second half clutch; One end of the first connecting rod is fixedly connected to the rotating shaft, and the other end is rotatably connected to a roller, and the axis of the roller is parallel to the axis of the rotating shaft; The two rollers of the same toggle mechanism are both inserted into the corresponding annular groove of the second half clutch.

5. The multi-layer rolling device according to claim 4, characterized in that: The second driving device comprises a telescopic cylinder and a second connecting rod, wherein the cylinder barrel end of the telescopic cylinder is hinged to the base, one end of the second connecting rod is connected to the rotating shaft for rotation prevention, and the other end is hinged to the cylinder rod end of the telescopic cylinder.

6. The multi-layer rolling device according to claim 3, characterized in that: The second half clutch is key-linked to the output shaft of the corresponding reducer, a keyway is arranged on the output shaft of the reducer along its axial direction, and the keyway passes through the free end of the output shaft of the reducer.

7. The multi-layer rolling device according to claim 1, characterized in that: The two ends of the active pressure roller are rotatably connected to the two first mounting blocks respectively, and the two ends of the driven pressure roller are rotatably connected to the two second mounting blocks respectively; The first mounting block is fixedly connected to the rolling support, and the second mounting block is slidably connected to the rolling support in a vertical direction; The rolling bracket is provided with an adjusting mechanism for adjusting the sliding position of the second mounting block.

8. The multi-layer rolling device according to claim 7, characterized in that: The adjustment mechanism comprises a first adjustment device, the first adjustment device being used to adjust the sliding position of the second mounting block located at the uppermost position; The first adjusting device includes a first screw rod and a first nut which are threadedly connected. The first nut is rotatably connected to the top of the rolling support, and the bottom of the first screw rod is fixedly connected to the corresponding second mounting block.

9. The multi-layer rolling device according to claim 7, characterized in that: The adjusting mechanism comprises a second adjusting device, which comprises a first adjusting block, a second adjusting block and a second screw rod, wherein the first adjusting block and the second adjusting block are both provided with a through hole for the second screw rod to pass through, and the second screw rod is threadedly connected with two second nuts and two third nuts, wherein the two second nuts are respectively located at the upper and lower sides of the first adjusting block, and the two third nuts are respectively located at the upper and lower sides of the second adjusting block; The first mounting block and the second mounting block corresponding to the same pressing roller assembly are fixedly connected to the first adjusting block and the second adjusting block respectively.

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