A copper-aluminum composite plate compounding device and compounding process

Abstract

The application relates to the technical field of copper-aluminum composite, in particular to copper-aluminum composite plate compounding equipment which comprises a rack, an upper roller and a lower roller, both ends of the upper roller and the lower roller are rotationally installed on the rack, the middle parts of the upper roller and the lower roller are provided with roller bodies, copper-aluminum composite plates are rolled between the two roller bodies, the gaps between the two roller bodies are used for placing steel plates, and the both ends of the roller bodies are provided with thrust devices used for stopping the movement of the steel plates to the end parts of the roller bodies. The application also relates to a compounding process of copper-aluminum composite plates. The application has the effect of reducing the metal aluminum material exceeding the metal copper layer in the extrusion process.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of copper-aluminum composite, and in particular to a copper-aluminum composite plate composite device and composite process. BACKGROUND

[0002] Copper-aluminum composite materials have a wide application in electric power engineering and electronic devices, and the copper-aluminum composite materials utilize the electric conductivity of copper and the light weight of aluminum, and can also reduce the production cost. The copper-aluminum composite materials are mainly used for the manufacturing of copper bars in new energy vehicles, so as to reduce the total weight and production cost of the new energy vehicles.

[0003] In the related art, a copper-aluminum composite plate is disclosed, which comprises a metal copper layer and a metal aluminum layer. The metal copper layer and the metal aluminum layer are combined by a rolling process, so that the metal copper layer and the metal aluminum layer are relatively stacked. In the rolling process, the metal copper layer and the metal aluminum layer are stacked and heated, so that the metal copper layer and the metal aluminum layer reach a preset temperature, and then the metal copper layer and the metal aluminum layer are combined by rolling.

[0004] However, when the metal aluminum layer is rolled, in order to enable the metal aluminum layer to fully cover the surface of the metal copper layer, the metal aluminum layer is heated to a temperature at which it is easy to be extruded, and the metal aluminum layer is extruded from both sides of the metal copper layer to be beyond the side edges of the metal copper layer. SUMMARY

[0005] In order to reduce the extruded metal aluminum material beyond the metal copper layer in the extrusion process, the application provides a copper-aluminum composite plate composite device and composite process.

[0006] The application provides a copper-aluminum composite plate composite device, which adopts the following technical scheme:

[0007] The copper-aluminum composite plate composite device comprises a rack, an upper roller and a lower roller. Both ends of the upper roller and the lower roller are rotatably installed on the rack. The middle part of the upper roller and the lower roller is provided with a roller body. The space between the two roller bodies is used for rolling the copper-aluminum composite plate. The space between the two roller bodies is used for placing a steel plate. Both ends of the roller body are provided with a thrust device for blocking the movement of the steel plate to the end of the roller body.

[0008] By adopting the technical scheme, the upper roller and the lower roller are both rotatably installed on the rack, so that the upper roller and the lower roller can rotate relative to each other, the roller bodies are both installed on the upper roller and the lower roller, the gap between the two roller bodies can place the copper-aluminum composite plate, and the steel plates are used to place at both ends of the gap, the steel plates abut against both sides of the copper-aluminum composite plate, when the two roller bodies roll the copper-aluminum composite plate, the aluminum material on the copper-aluminum composite plate extends to the position of the steel plate, so that the thrust device arranged at both ends of the roller body can limit the position of the steel plate, so that the aluminum material can only cover the surface of the steel plate, reducing the amount of aluminum material exceeding the edge of the copper-aluminum composite plate when being extruded, and the setting of the steel plate can make the thickness of the composite aluminum plate more uniform, reducing the defects at the edge of the copper-aluminum composite plate.

[0009] Preferably, the thrust device comprises a thrust strip, a roller and a mounting frame, the mounting frame is rotatably installed on the upper roller and the lower roller, the roller is rotatably arranged on the mounting frame, and the rotation axis of the roller is vertically arranged, the thrust strip is located between the roller and the end face of the roller body, one side of the thrust strip abuts against the roller, and the other end abuts against the end face of the roller body, and the thrust strip corresponds to the gap between the two roller bodies.

[0010] By adopting the technical scheme, the mounting frame is arranged on the upper roller and the lower roller, the roller is arranged on the mounting frame, one side of the thrust strip abuts against the side wall of the roller, and the other end corresponds to the gap between the two roller bodies, so that the two roller bodies can move with the thrust strip under the action of the two roller bodies when rotating, thereby reducing the friction between the thrust strip and the steel plate.

[0011] Preferably, the thrust strip is arranged in an annular shape, the lower part of the thrust strip is provided with two supporting rollers, the upper part of the thrust strip is provided with an adjusting sleeve, the adjusting sleeve is fixedly installed on the upper roller, and the two ends of the supporting roller are rotatably installed on the rack, the two supporting rollers and the adjusting sleeve are arranged at three points on the circumferential wall of the thrust strip, and the thrust strip rotates with the roller body through the two supporting rollers and the adjusting sleeve.

[0012] By adopting the technical scheme, the thrust strip is arranged in an annular shape, and two supporting rollers are arranged at the lower part of the thrust strip, the two supporting rollers place the thrust strip at the position between the two supporting rollers, and the adjusting sleeve is used to abut against the upper side of the thrust strip, so that the annular thrust strip can be stably and rotatably arranged against the end of the roller body under the action of the two supporting rollers and the adjusting sleeve, and the thrust strip can continuously operate, thereby facilitating the blocking of the steel plate by the thrust strip.

[0013] Preferably, the thrust strip is arranged in an elliptical shape, and the short axis of the elliptical shape formed by the thrust strip is in a vertical state.

[0014] By adopting the technical scheme, the thrust strip is arranged in an elliptical shape, and the short axis of the elliptical shape of the thrust strip is arranged vertically, so that the curvature of the thrust strip at the corresponding positions of the two roller bodies is larger, the thrust strip is closer to a straight line, and the contact length of the thrust strip on the steel plate is longer, thereby reducing the horizontal rotation of the steel plate after being extruded.

[0015] Preferably, gears are coaxially fixed on the support rollers, and the gears on the two support rollers are connected through a toothed belt for synchronous transmission.

[0016] By adopting the technical scheme, gears are coaxially fixed on the support rollers, and the gears on the two support rollers are connected through a toothed belt for synchronous transmission, so that the two support rollers can synchronously convey the thrust strip, so that the thrust strip is kept between the two support rollers, and the thrust strip is prevented from being separated out.

[0017] Preferably, the mounting frame comprises bearing seat one and bearing seat two, the intermediate block is slidably connected to the bearing seat two, the sliding direction of the intermediate block and the bearing seat is parallel to the axis direction of the roller, the roller is rotatably installed on the bearing seat one and the intermediate block, the bearing seat one is slidably connected to the upper roller, the bearing seat two is slidably connected to the lower roller, and the mounting frame is connected with a hydraulic cylinder for driving the mounting frame to move towards the end of the roller body.

[0018] By adopting the technical scheme, the bearing seat one is slidably connected to the upper roller, the bearing seat two is slidably connected to the lower roller, and the hydraulic cylinder is used for driving the mounting frame to move along the length direction of the upper roller and the lower roller, so that the roller on the mounting frame is close to the direction of the roller body, thereby the thrust strip can be kept extruded towards the steel plate under the action of the hydraulic cylinder, and when the extrusion force on the steel plate is too large, the hydraulic cylinder can be retracted after exceeding the maximum thrust force, and then the length of the hydraulic cylinder can be recovered in time when the extrusion force is reduced.

[0019] Preferably, the upper roller is connected with a sliding block at both ends, the sliding block is vertically slidably connected to the rack, the upper roller is rotatably installed on the sliding block, an adjusting screw is arranged on the sliding block, the adjusting screw is vertically arranged, the adjusting screw is threadedly connected with the rack, and the end of the adjusting screw is rotatably installed on the sliding block.

[0020] By adopting the technical scheme, the upper roller is connected with the sliding block at both ends, the adjusting screw is connected to the sliding block, the adjusting screw can move the sliding block along the vertical direction by rotating the adjusting screw, the gap width between the two roller bodies can be adjusted, and the copper-aluminum composite plate with different thicknesses can be rolled.

[0021] Preferably, the adjusting sleeve is uniformly divided into three arc-shaped blocks in the circumferential direction, and two adjacent arc-shaped blocks are fixedly connected through bolts, and the outer diameter of the adjusting sleeve is selected according to the gap between the two roller bodies to keep the gap between the thrust strip and the two roller bodies corresponding.

[0022] By adopting the technical scheme, the three arc-shaped blocks are uniform, so that the bolts on the three arc-shaped blocks can be disassembled from the upper roller, and then other size adjusting sleeves are installed, so that the outer diameter of the adjusting sleeve can keep the position of the thrust strip unchanged, so as to keep the position of the thrust strip pressed against the steel plate.

[0023] The application provides a composite process of a copper-aluminum composite plate.

[0024] The composite process of the copper-aluminum composite plate comprises the following steps: parallel steel plates are arranged on both sides of a metal copper plate and move with the metal copper plate, a metal aluminum plate is laid on the upper surface of the metal copper plate, and the two sides of the metal aluminum plate extend to the surface of the steel plate during rolling; and the part of the metal aluminum plate covering the steel plate is cut.

[0025] By adopting the technical scheme, the two sides of the metal copper plate are provided with the steel plates moving with the metal copper plate, then the metal aluminum plate laid on the metal copper plate is rolled, the metal aluminum plate is deformed under pressure and covers the surface of the steel plate, the steel plate supports the part of the metal aluminum plate beyond the metal copper plate, the thickness of the part of the metal aluminum plate beyond the metal copper plate is reduced, and then the metal aluminum material beyond the metal copper plate can be reduced, and finally the metal aluminum plate on the steel plate is cut to form the copper-aluminum composite plate.

[0026] Preferably, the temperature of the metal aluminum plate is heated to 400-450 DEG C during rolling; the metal copper plate deforms and extrudes the steel plate, and a spacing groove is formed between the side of the metal copper plate far from the metal aluminum plate and the steel plate; and the part of the metal aluminum plate covering the steel plate is cut along the spacing groove.

[0027] By adopting the technical scheme, when the metal aluminum plate is heated to 400-500 DEG C, the metal aluminum plate can heat the metal copper plate when the metal aluminum plate contacts the metal copper plate, and then the metal copper plate deforms and extrudes the steel plate on both sides at the position close to the metal aluminum plate during rolling, so that the spacing groove is formed between the lower surface of the metal copper plate and the steel plate, and the original steel plate can be cut more accurately along the spacing groove for repeated use.

[0028] In summary, the application has at least one of the following beneficial technical effects:

[0029] 1. When two roller bodies roll the copper-aluminum composite plate, the metal aluminum material on the copper-aluminum composite plate extends to the position of the steel plate, so that the thrust device arranged at both ends of the roller body can limit the position of the steel plate, so that the metal aluminum material can only cover the surface of the steel plate, and the amount of the metal aluminum material exceeding the edge of the copper-aluminum composite plate when being extruded is reduced.

[0030] 2. The thrust strip is placed between the two supporting rollers by the two supporting rollers, and the adjusting sleeve is adjusted to abut the upper side of the thrust strip, so that the thrust strip of the ring table can be stably and rotationally against the end of the roller body under the action of the two supporting rollers and the adjusting sleeve, and the thrust strip can continuously run;

[0031] 3. By rotating the adjusting screw, the adjusting screw can move the sliding block in the vertical direction, thereby adjusting the gap width between the two roller bodies, thereby being capable of rolling copper-aluminum composite plates of different thicknesses. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a schematic diagram of the combination of the copper-aluminum composite plate and the steel plate in the embodiment of the present application;

[0033] Figure 2 is a schematic diagram of the overall structure of a copper-aluminum composite plate compounding device in the embodiment of the present application;

[0034] Figure 3 is a schematic diagram of the installation of a thrust device in a copper-aluminum composite plate compounding device in the embodiment of the present application;

[0035] Figure 4 is a schematic diagram of the structure of a mounting frame in a copper-aluminum composite plate compounding device in the embodiment of the present application.

[0036] BRIEF DESCRIPTION OF DRAWINGS: 11, metal copper plate; 12, steel plate; 13, metal aluminum plate; 14, spacing groove; 2, rack; 31, upper roller; 32, lower roller; 33, adjusting sleeve; 331, arc block; 332, bolt; 34, sliding block; 35, sliding bar; 4, roller body; 5, conveying device; 6, thrust device; 61, thrust strip; 62, roller; 63, mounting frame; 631, bearing seat one; 632, bearing seat two; 633, middle block; 634, guide rod; 635, guide hole; 7, supporting roller; 71, positioning wheel; 72, gear; 73, toothed belt; 8, adjusting screw; 9, push block; 91, hydraulic cylinder. DETAILED DESCRIPTION

[0037] The following will be described in detail in combination with the accompanying Figures 1-4 The present application will be further described in detail.

[0038] The embodiment of the present application discloses a compounding process of a copper-aluminum composite plate, referring to Figure 1two steel plates 12 are placed on both sides of the metal copper plate 11 and parallel to the side edges of the metal copper plate 11, the thickness of the steel plates 12 is -0.5mm to 0.5mm different from the thickness of the metal copper plate 11. The thickness of the steel plates 12 is preferably less than the thickness of the metal copper plate 11, because the metal copper plate 11 still has shrinkage deformation after being pressed, so that the final forming thickness of the metal copper plate 11 is equal to the thickness of the metal steel plate 12. Then a metal aluminum plate 13 is laid on the upper surface of the metal copper plate 11, the metal aluminum plate 13 is heated to 400-450℃, so that the metal aluminum plate 13 is more easily deformed, and the metal aluminum plate 13 is rolled at the same time as the metal copper plate 11, and the rolling is performed by rolling, the part of the metal aluminum plate 13 in contact with the metal copper plate 11 is also heated, and the metal aluminum plate 13 is deformed towards the steel plates 12 on both sides of the metal copper plate 11 during rolling, so that the width of the metal aluminum plate 13 exceeds the metal copper plate 11, and the part on both sides of the metal copper plate 11 is supported by the steel plates 12, so that the thickness of the part of the metal aluminum plate 13 on both sides of the metal copper plate 11 is reduced, thereby reducing the metal aluminum material exceeding the metal copper layer in the compounding process. Because the temperature of the part of the metal copper plate 11 in contact with the metal aluminum plate 13 is high, it is more easily extruded in the rolling process to move the steel plates 12 away from the metal copper plate 11, so that a spacing groove 14 is formed between the steel plates 12 and the surface of the metal copper plate 11 away from the metal aluminum plate 13, and the width of the spacing groove 14 is preferably 0.5-1mm. When the metal copper plate 11 and the metal aluminum plate 13 are compounded, a cutting tool or a saw blade is arranged along the spacing groove 14 to cut the part of the metal aluminum plate 13 exceeding the metal copper plate 11, and then the edges of the metal copper plate 11 are polished to make the side edges of the metal copper plate 11 and the metal aluminum plate 13 flush and without burrs. If the metal aluminum plate 13 is directly compounded to the metal copper plate 11, the thickness of the part of the metal aluminum plate 13 on both sides of the metal copper plate 11 is the sum of the thicknesses of the metal copper plate 11 and the metal aluminum plate 13, so that the heated metal aluminum plate 13 needs more, and the thickness variation will cause the metal aluminum plate 13 at the edge of the metal copper plate 11 to have poor compaction, poor compounding and easy cracking. The steel plates 12 and the metal aluminum formed by cutting the part of the metal aluminum plate 13 exceeding the metal copper plate 11 are peeled off after being heated to make the steel plates 12 reusable.

[0039] The embodiment of the present application also discloses a copper-aluminum composite plate compounding device, referring to Figure 2, including a rack 2, an upper roller 31 and a lower roller 32, the upper roller 31 and the lower roller 32 are parallel and arranged vertically, both ends of the upper roller 31 and the lower roller 32 are installed on the rack 2, the lower roller 32 is driven to rotate by a driving device, the middle part of the upper roller 31 and the lower roller 32 are coaxially fixedly provided with roller bodies 4, the lengths of the two roller bodies 4 are equal and are arranged in a spaced manner, the metal copper plate 11 and the metal aluminum plate 13 pass through the gap between the two roller bodies 4 and are rolled by the roller bodies 4 to form a copper-aluminum composite plate. The front and back of the upper roller 31 and the lower roller 32 along the conveying direction of the copper-aluminum composite plate are provided with conveying devices 5, and the conveying devices 5 are used for supporting the metal copper plate 11.

[0040] Reference Figure 2 , both ends of the roller body 4 are provided with a thrust device 6, the length of the roller body 4 is equal to the total width of the metal copper plate 11 and the two steel plates 12, and the side of the two steel plates 12 away from the edge of the metal copper plate 11 is flush with the end of the roller body 4. The thrust device 6 is used for abutting against the side of the steel plate 12 away from the metal copper plate 11, and the position of the two steel plates 12 is limited by the thrust device 6 during the movement of the steel plate 12 and the metal copper plate 11, so as to reduce the displacement of the steel plate 12 along the width direction of the metal copper plate 11, so that when the metal aluminum plate 13 on the metal copper plate 11 is extruded, it can reach the surface of the steel plate 12, but not enter between the opposite sides of the steel plate 12 and the metal copper plate 11.

[0041] Reference Figure 3 , the thrust device 6 includes a thrust strip 61, a roller 62 and a mounting frame 63, the mounting frame 63 is rotationally connected to the upper roller 31 and the lower roller 32, the roller 62 is rotationally connected to the mounting frame 63, the axis of the roller 62 is perpendicular to the axis of the upper roller 31, and the center line of the roller 62 is located in the vertical plane of the center of the upper roller 31 and the lower roller 32, the roller 62 is opposite to the end position of the gap between the two roller bodies 4, the thrust strip 61 is located between the roller body 4 and the roller 62, one side of the thrust strip 61 abuts against the peripheral wall of the roller 62, and the other end is used for abutting against the end of the roller body 4. When the roller body 4 rotates, the roller body 4 will move with the thrust strip 61, and the steel plate 12 between the two roller bodies 4 abuts against the thrust strip 61, so as to reduce the lateral movement of the steel plate 12 under the action of the thrust strip 61.

[0042] Reference Figure 3 and Figure 4, the thrust strip 61 is made of elastic metal plate, in order to make the thrust strip 61 have greater flexibility, the thrust strip 61 can be provided in a multi-layer structure, in the embodiment, the thrust strip 61 is two layers, the two layers are nested to form the thrust strip 61. The overall thickness of the thrust strip 61 is greater than the gap between the two roller bodies 4. An adjusting sleeve 33 is arranged on the side wall of the upper roller 31, the adjusting sleeve 33 is used to abut the middle position of the upper part of the thrust strip 61, two supporting rollers 7 are arranged on the lower part of the thrust strip 61, the two ends of the supporting rollers 7 are rotatably connected to the rack 2, the supporting rollers 7 are used to abut the two sides of the lower part of the thrust strip 61, so that the two supporting rollers 7 and the adjusting sleeve 33 act on the three points of the peripheral wall of the thrust strip 61, and at the same time the thrust strip 61 is extruded into an ellipse with the short axis in the vertical state under the action of the two supporting rollers and the adjusting sleeve 33. The position of the elliptical thrust strip 61 between the two roller bodies 4 has smaller curvature, so that the position in contact with the two roller bodies 4 is closer to a straight line, the contact position of the thrust strip 61 with the steel plate 12 is longer, the horizontal rotation of the steel plate 12 during extrusion is reduced, and at the same time the thrust strip 61 can rotate circumferentially, facilitating the continuous work of the thrust strip 61.

[0043] Reference Figure 3 , coaxially arranged on the two supporting rollers 7 are positioning wheels 71, the positioning wheels 71 are arranged on the supporting rollers 7 in multiple, one is arranged on each side of the thrust strip 61 to form a group, the distance between the two positioning wheels 71 of the group is equal to the width of the thrust strip 61, so that the positioning wheels 71 can reduce the separation of the multi-layer thrust strip 61, improve the working stability of the thrust strip 61, and limit the position of the thrust strip 61 at the edge of the steel plate 12. Gear 72 is fixedly arranged on the two supporting rollers 7, gear 72 is connected with toothed belt 73, the two supporting rollers 7 are drivingly connected through the toothed belt 73, so that the two supporting rollers 7 can rotate at the same speed, further move the working position of the thrust strip 61, and reduce the disengagement of the thrust strip 61 from the two supporting rollers 7 during work.

[0044] Reference Figure 3 and Figure 4 , the two ends of the upper roller 31 are provided with sliding blocks 34, vertical sliding strips 35 are arranged on the two sides of the sliding blocks 34, the sliding blocks 34 are vertically slidably connected to the rack 2 through the sliding strips 35, adjusting screws 8 are connected to the sliding blocks 34, the adjusting screws 8 are vertically arranged, the lower ends of the adjusting screws 8 are rotatably connected to the sliding blocks 34, and the adjusting screws 8 are rotatably connected to the rack 2. When the adjusting screw 8 is rotated, the adjusting screw 8 can drive the sliding block 34 to adjust in the vertical direction. At the same time, the two ends of the upper roller 31 are rotatably installed on the sliding blocks 34, the upper roller 31 can be adjusted at the same time with the sliding blocks 34, so as to adjust the gap width between the two roller bodies 4, so that the roller body 4 can roll the copper-aluminum composite plate with different thicknesses.

[0045] ReferenceFigure 4 The mounting frame 63 comprises bearing seat one 631 and bearing seat two 632, the bearing seat one 631 can be installed on the upper roller 31 through sliding bearing, the bearing seat two 632 can be installed on the lower roller 32 through sliding bearing, the intermediate block 633 is slidably connected on the bearing seat two 632, the guide rod 634 is arranged on the intermediate block 633, the length direction of the guide rod 634 is parallel to the center line of the roller 62, the guide hole 635 is formed on the bearing seat two 632, the guide rod 634 is slidably fitted in the guide hole 635, one end of the roller 62 is rotatably installed on the bearing seat one 631, and the other end is rotatably installed on the intermediate block 633. When the upper roller 31 is adjusted by the adjusting screw 8, the guide rod 634 moves along the guide hole 635, so that the mounting frame 63 can be adaptively mounted on the upper roller 31 and the lower roller 32, and a push block 9 is arranged on one side of the mounting frame 63, the push block 9 is used for abutting against the side of the mounting frame 63 away from the roller body 4, and a hydraulic cylinder 91 is connected to the push block 9, the hydraulic cylinder 91 is fixed on the rack 2, the output end of the hydraulic cylinder 91 is fixedly connected with the push block 9, so that the hydraulic cylinder 91 is used for extruding the mounting frame 63 towards the roller body 4, so that the thrust strip 61 abuts against the end face of the roller body 4. The pressure of the hydraulic cylinder 91 is used to prevent the aluminum plate 13 from pushing the steel plate 12 to move sideways, and when the copper plate 11 is deformed, the hydraulic cylinder 91 can be retracted to form a gap between the steel plate 12 and the copper plate 11.

[0046] Reference Figure 4 The adjusting sleeve 33 is evenly divided into three arc-shaped blocks 331 in the circumferential direction, the three arc-shaped blocks 331 are arranged in the circumferential direction of the upper roller 31 to form a ring-shaped adjusting sleeve 33, and a bolt 332 is arranged between adjacent two arc-shaped blocks 331, the arc-shaped blocks 331 are connected to each other through the bolt 332, so that the adjusting sleeve 33 can be fixed on the circumferential wall of the upper roller 31. The outer diameter of the adjusting sleeve 33 is selected according to requirements, so that adjusting sleeves 33 with different outer diameters can be disassembled through the bolt 332, when the distance between the two roller bodies 4 increases, the outer diameter of the adjusting sleeve 33 is selected to be larger, so that the upper part of the thrust strip 61 abuts against the adjusting sleeve 33 and still corresponds to the gap position between the two roller bodies 4, when the distance between the two roller bodies 4 decreases, the outer diameter of the adjusting sleeve 33 is selected to be smaller, and the position of the thrust strip 61 still corresponds to the gap position between the two roller bodies 4 to limit the edge of the steel plate 12.

[0047] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A copper-aluminum composite plate composite equipment, characterized in that: The machine includes a frame (2), an upper roll (31) and a lower roll (32). Both ends of the upper roll (31) and the lower roll (32) are rotatably mounted on the frame (2). Roll bodies (4) are provided in the middle of the upper roll (31) and the lower roll (32). The space between the two roll bodies (4) is used for rolling copper-aluminum composite plates. The gap between the two roll bodies (4) is used to place steel plates (12). Both ends of the roll body (4) are provided with thrust devices (6) to prevent the steel plates (12) from moving towards the ends of the roll body (4). The thrust device (6) includes a thrust strip (61), a roller (62) and a mounting frame (63). The mounting frame (63) is rotatably mounted on the upper roll (31) and the lower roll (32). The roller (62) is rotatably mounted on the mounting frame (63), and the rotation axis of the roller (62) is vertically arranged. The thrust strip (61) is located between the end face of the roller (62) and the roller body (4). One side of the thrust strip (61) abuts against the roller (62), and the other end abuts against the end face of the roller body (4). The gap between the thrust strip (61) and the two roller bodies (4) corresponds to the gap between them. The thrust strip (61) is arranged in a ring shape. Two support rollers (7) are provided at the lower part of the thrust strip (61). An adjusting sleeve (33) is provided at the upper part of the thrust strip (61). The adjusting sleeve (33) is fixedly installed on the upper roller (31). The two ends of the support rollers (7) are rotatably installed on the frame (2). The two support rollers (7) and the adjusting sleeve (33) are arranged at three points on the periphery of the thrust strip (61). The thrust strip (61) rotates with the rotation of the roller body (4) through the two support rollers (7) and the adjusting sleeve (33).

2. The copper-aluminum composite plate composite equipment according to claim 1, characterized in that: The thrust bar (61) is set in an elliptical shape and the minor axis of the ellipse formed by the thrust bar (61) is in a vertical state.

3. A copper-aluminum composite plate composite equipment according to claim 1 or 2, characterized in that: A gear (72) is coaxially fixed on the support roller (7), and the gears (72) on the two support rollers (7) are connected by a toothed belt (73) at the same speed.

4. The copper-aluminum composite plate composite equipment according to claim 1, characterized in that: The mounting frame (63) includes a bearing seat one (631) and a bearing seat two (632). An intermediate block (633) is slidably connected to the bearing seat two (632). The sliding direction of the intermediate block (633) and the bearing seat is parallel to the axial direction of the roller (62). The roller (62) is rotatably mounted on the bearing seat one (631) and the intermediate block (633). The bearing seat one (631) is slidably connected to the upper roller (31). The bearing seat two (632) is slidably connected to the lower roller (32). A hydraulic cylinder (91) is connected to the mounting frame (63) for driving the mounting frame (63) to move toward the end of the roller body (4).

5. The copper-aluminum composite plate composite equipment according to claim 4, characterized in that: The upper roller (31) is connected to two ends of a slider (34). The slider (34) is vertically slidably connected to the frame (2). The upper roller (31) is rotatably mounted on the slider (34). An adjusting screw (8) is provided on the slider (34). The adjusting screw (8) is vertically arranged. The adjusting screw (8) is threadedly connected to the frame (2). The end of the adjusting screw (8) is rotatably mounted on the slider (34).

6. The copper-aluminum composite plate composite equipment according to claim 5, characterized in that: The adjusting sleeve (33) is evenly divided into three arc-shaped blocks (331) along the circumference. Two adjacent arc-shaped blocks (331) are fixedly connected by bolts (332). The outer diameter of the adjusting sleeve (33) is selected according to the gap between the two rollers (4) to keep the thrust strip (61) and the gap between the two rollers (4) corresponding.

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