A device for accurately controlling the pressing amount of the rollers of a six-roll copper foil rolling mill

Abstract

The invention discloses a device for accurately controlling the pressing amount of a pressure roller of a six-roll copper foil rolling mill, comprising a frame, on which a pressure roller and a support roller are rotatably arranged, the pressure roller is located above the support roller, two upper balancing rollers are symmetrically arranged front and back above the pressure roller, the two upper balancing rollers are slidably arranged up and down along the frame, two lower balancing rollers are symmetrically arranged front and back below the support roller, the lower balancing rollers are tangent to the support roller, an adjusting mechanism is arranged between the rotating shaft of the pressure roller and the rotating shaft of the support roller, the adjusting mechanism is used for adjusting the spacing between the pressure roller and the support roller, a linkage mechanism is arranged between the two upper balancing rollers and the rotating shaft of the pressure roller, the linkage mechanism is used for adjusting the two upper balancing rollers to slide along the frame, the invention solves the problem in the prior art that when the pressure roller of the copper foil rolling mill rolls the copper foil strip, the copper foil strip is directly broken or cracked.

Description

Technical Field

[0001] The invention belongs to the technical field of copper foil rolling equipment, and in particular relates to a device for accurately controlling the pressing amount of a roller of a six-roll copper foil rolling mill. Background Art

[0002] The six-roll copper foil rolling mill rolls the copper foil strip to be rolled by rollers to make it thinner and wider, and at the same time improve the surface quality and mechanical properties of the copper foil. During the rolling process, it is necessary to accurately control the rolling force, rolling speed, tension and other parameters to ensure the quality and dimensional accuracy of the copper foil. Generally, before rolling, it is necessary to adjust the roller spacing of the rolling mill according to the parameters of the copper foil. However, since the thickness of the copper foil strip to be rolled before rolling is generally about 100 microns, the thickness of the copper foil after rolling is usually 9 microns, 12 microns, 18 microns, 35 microns and other specifications, the copper foil strip to be rolled is directly placed between the rollers and then the roller spacing is adjusted. In this case, the copper foil to be rolled will be directly or instantly squeezed by the rollers, and under the action of the tension of the copper foil strip, the copper foil strip to be rolled will be directly broken or cracked, so that the rolling mill cannot smoothly and completely start rolling the copper foil strip to be rolled. Summary of the invention

[0003] The purpose of the present invention is to solve the problem in the prior art that the copper foil strip is directly broken or cracked when the pressure rollers of the copper foil rolling mill are rolling the copper foil strip, and to propose a precise control device for the pressure reduction amount of the pressure rollers of a six-roll copper foil rolling mill.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a device for accurately controlling the pressing amount of the pressure roller of a six-roll copper foil rolling mill, comprising a frame, on which a pressure roller and a support roller are rotatably arranged, the pressure roller is located above the support roller, two upper balancing rollers are symmetrically arranged front and back above the pressure roller, the two upper balancing rollers are slidably arranged up and down along the frame, two lower balancing rollers are symmetrically arranged front and back below the support roller, the lower balancing rollers are tangent to the support roller, an adjustment mechanism is arranged between the rotating axis of the pressure roller and the rotating axis of the support roller, the adjustment mechanism is used to adjust the distance between the pressure roller and the support roller, a linkage mechanism is arranged between the two upper balancing rollers and the rotating axis of the pressure roller, the linkage mechanism is used to adjust the two upper balancing rollers to slide along the frame.

[0005] As a further description of the above technical solution: the frame includes two left and right side panels, the side panels are provided with adjustment holes, a sliding seat is provided in the adjustment hole for sliding up and down, the rotating shaft of the pressure roller rotates in the sliding seat, a vertical sliding hole is provided in the side panels, an adjusting rod is provided for sliding in the sliding hole, the lower end of the adjusting rod is fixedly connected to the sliding seat, a limiting nut is fixedly provided on the upper end of the adjusting rod, a reset spring is sleeved on the adjusting rod, and the reset spring is located between the limiting nut and the side panel.

[0006] As a further description of the above technical solution: the adjusting mechanism includes an active bevel gear coaxially fixed on the rotating shaft of the support roller and a connecting ring sleeved on the rotating shaft of the pressure roller, a first rotating seat, a second rotating seat and a third rotating seat are fixedly arranged on the side plate of the frame, a screw rod is rotatably arranged on the first rotating seat, the screw rod is arranged in a vertical direction, a sliding block matching with the screw rod is arranged on the screw rod, a mounting ring and an adjusting ring are sleeved on the screw rod, the mounting ring and the connecting ring are connected by a connecting block, a mounting groove is opened on the mounting ring, the sliding block is located in the mounting groove, the adjusting ring is used to block the mounting groove, a ratchet is fixedly sleeved on the sliding block, a A pawl corresponding to the ratchet wheel, a torsion spring is arranged at the rotating shaft of the pawl, and a limit plate corresponding to the pawl is arranged at the lower end of the adjusting ring. The adjusting ring is rotated to adjust the relative position of the limit plate and the pawl to change the clamping state of the ratchet wheel and the pawl. A first transmission shaft is rotatably arranged on the second rotating seat, a clutch assembly is arranged between the upper end of the first transmission shaft and the lower end of the screw rod, and a second transmission shaft is rotatably arranged on the third rotating seat. A first bevel gear is fixedly arranged on the first transmission shaft, and a second bevel gear is fixedly arranged on the second transmission shaft. The first bevel gear and the second bevel gear are meshed with each other. A driven bevel gear is also arranged on the second transmission shaft, and the driven bevel gear and the active bevel gear are meshed with each other.

[0007] As a further description of the above technical solution: three pawls are arranged at equal intervals on the circumference, and three limit plates are arranged at equal intervals on the circumference of the lower end of the adjustment ring, and the limit plates are arc-shaped plates tangent to the installation groove.

[0008] As a further description of the above technical solution: the clutch assembly includes a first clutch disc and a second clutch disc, the first clutch disc is fixedly arranged on the upper end of the first transmission shaft, a connecting shaft is coaxially fixed to the lower end of the screw rod, the second clutch disc is slidably sleeved on the connecting shaft up and down, a limiting flange is arranged on the upper end of the connecting shaft, a clamping spring is sleeved on the connecting shaft, the clamping spring is located between the limiting flange and the second clutch disc, a trigger assembly is arranged between the first rotating seat and the second rotating seat, and the trigger assembly is used to control the engagement or disengagement between the first clutch disc and the second clutch disc.

[0009] As a further description of the above technical solution: the trigger assembly includes a trigger seat slidably arranged on the screw rod, a trigger rod is arranged below the trigger seat, and the length of the trigger rod can be adjusted; a toggle ring is provided on the upper end fixed sleeve of the second clutch disk, and a U-shaped toggle fork is rotatably arranged on the second rotating seat, the U-shaped toggle fork corresponds to the toggle ring, and the lower end of the trigger rod corresponds to the end of the U-shaped toggle fork away from the second clutch disk.

[0010] As a further description of the above technical solution: a guide rod is fixedly arranged between the first rotating seat and the second rotating seat, the trigger seat is slidably sleeved on the guide rod, a scale is arranged on the guide rod, and the trigger rod includes a fixed screw and a trigger head threadedly connected to the fixed screw.

[0011] As a further description of the above technical solution: the linkage mechanism includes a connecting frame, two upper balancing rollers are rotatably arranged on the connecting frame, and a guide slide hole is arranged on the side plate of the frame. The guide slide hole is vertically arranged, and a guide positioning rod is slidably arranged in the guide slide hole. The lower end of the guide positioning rod is connected to the sliding seat, and the upper end is connected to the connecting frame.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0013] (1) When rolling the copper foil, the present application performs rolling according to a preset copper foil thickness, and the spacing between the pressure roller and the support roller is actively adjusted after the rolling mill is started, that is, during the normal movement of the copper foil strip, the pressure roller gradually approaches the support roller until the spacing between the pressure roller and the support roller is the set copper foil strip thickness.

[0014] (2) After the rolling is completed, the spacing between the pressure roller and the support roller is restored to normal. The downward pressure of the pressure roller is actively adjusted each time the rolling is performed. The upper balance roller is adjusted simultaneously with the movement of the pressure roller and is always tangent to the pressure roller. The tangency of the lower balance roller and the support roller can reduce the degree of deflection of the pressure roller and ensure the overall quality of the finished copper foil strip.

[0015] (3) The distance of the downward pressure can be adjusted intuitively and accurately through the set scale. In addition, the adjustment mechanism adopts the transmission of the main power of the support roller without the help of external force, ensuring the consistency of the downward pressure adjustment of the pressure roller and the working state of the rolling mill. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a side view of the present invention;

[0017] Figure 2 It is a vertical cross-sectional view of the present invention;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the frame of the present invention;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the linkage mechanism and the upper balancing roller of the present invention;

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism, the trigger assembly and the clutch assembly of the present invention;

[0022] Figure 7 for Figure 6 Sectional view at AA;

[0023] Figure 8 It is an exploded view of the installation ring and the adjustment ring in the present invention;

[0024] Fig. 9 It is an exploded view of the mounting ring and the adjusting ring in the present invention from another angle;

[0025] Fig.10 A diagram showing a position relationship between a limit plate and a ratchet pawl in one state of the present invention;

[0026] Fig.11 This is another state position relationship between the limit plate and the pawl of the present invention.

[0027] Legend: 1. Copper foil strip; 2. Side plate; 3. Pressing roller; 4. Support roller; 5. Adjusting hole; 6. Sliding seat; 7. Adjusting rod; 8. Limiting nut; 9. Reset spring; 10. Active bevel gear; 11. Connecting ring; 12. First rotating seat; 13. Second rotating seat; 14. Third rotating seat; 15. Screw rod; 16. Sliding block; 17. Mounting ring; 18. Adjusting ring; 19. Connecting block; 20. Mounting groove; 21. Ratchet; 22. Ratchet; 23. Limiting plate; 24. A transmission shaft; 25, a second transmission shaft; 26, a first bevel gear; 27, a second bevel gear; 28, a driven bevel gear; 29, a first clutch plate; 30, a second clutch plate; 31, a connecting shaft; 32, a limiting flange; 33, a tightening spring; 34, a trigger seat; 35, a trigger rod; 36, a fixing screw; 37, a trigger head; 38, a U-shaped shift fork; 39, a shift ring; 40, an upper balancing roller; 41, a lower balancing roller; 42, a connecting frame; 43, a guide positioning rod; 44, a guide rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-11 The present invention provides a technical solution for a device for accurately controlling the pressing amount of a six-roll copper foil rolling mill roller:

[0030] A device for precisely controlling the pressing amount of a pressure roller of a six-roll copper foil rolling mill comprises a frame, wherein the frame comprises two left and right side plates 2, a ground foot and a connecting rod, a pressure roller 3 and a support roller 4 are rotatably arranged between the left and right side plates 2, the pressure roller 3 is located above the support roller 4, the rotating shaft of the pressure roller 3 and the rotating shaft of the support roller 4 are both connected to a main power motor (not shown in the figure), the rotation directions of the pressure roller 3 and the support roller 4 are opposite, an adjustment mechanism is arranged between the rotating shaft of the pressure roller 3 and the rotating shaft of the support roller 4, and the adjustment mechanism is used to adjust the distance between the pressure roller 3 and the support roller 4.

[0031] An adjusting hole 5 is provided on the side plate 2, and a sliding seat 6 is provided in the adjusting hole 5 for sliding up and down. The rotating shaft of the pressure roller 3 rotates in the sliding seat 6. A vertical sliding hole is provided on the side plate 2, and an adjusting rod 7 is provided in the sliding hole for sliding. The lower end of the adjusting rod 7 is fixedly connected to the sliding seat 6, and a limiting nut 8 is fixedly provided on the upper end of the adjusting rod 7. A reset spring 9 is sleeved on the adjusting rod 7, and the reset spring 9 is located between the limiting nut 8 and the side plate 2.

[0032] The adjustment mechanism includes an active bevel gear 10 coaxially fixed on the rotating shaft of the support roller 4 and a connecting ring 11 sleeved on the rotating shaft of the pressure roller 3. A first rotating seat 12, a second rotating seat 13 and a third rotating seat 14 are fixedly arranged on the side plate 2. A screw rod 15 is rotatably arranged on the first rotating seat 12. The screw rod 15 is arranged in the vertical direction. A slider 16 cooperating with the screw rod 15 is arranged on the screw rod 15. A mounting ring 17 and an adjusting ring 18 are sleeved on the screw rod 15. An adjusting handle is arranged on the adjusting ring 18. The mounting ring 17 is connected to the connecting ring 11 through a connecting block 19. A mounting groove 20 is opened on the mounting ring 17. The slider 16 is located in the mounting groove 20, and the adjusting ring 18 is used to block the mounting groove 20. A ratchet 21 is fixedly sleeved on the slider 16. A pawl 22 corresponding to the ratchet 21 is rotatably arranged in the mounting groove 20. A torsion spring is arranged at the rotating shaft of the pawl 22. Three pawls 22 are arranged at equal intervals on the circumference. Three limit plates 23 are arranged at equal intervals on the circumference of the lower end of the adjusting ring 18. The limit plates 23 are arc-shaped plates tangent to the mounting groove 20. The limit plates 23 correspond to the pawls 22 one by one. The relative position of the limit plates 23 and the pawls 22 is adjusted by rotating the adjusting ring 18, thereby changing the clamping state of the ratchet 21 and the pawl 22. Fig.10 As shown, in this state, the ratchet 21 and the pawl 22 are completely engaged, and the mounting ring 17 and the slider 16 do not rotate relative to each other. Fig.11 As shown, in this state, the ratchet 21 and the pawl 22 are not engaged, and the mounting ring 17 and the slider 16 can rotate relative to each other.

[0033] A first transmission shaft 24 is rotatably provided on the second rotating seat 13, and a clutch assembly is provided between the upper end of the first transmission shaft 24 and the lower end of the screw rod 15. A second transmission shaft 25 is rotatably provided on the third rotating seat 14. A first bevel gear 26 is fixedly provided on the first transmission shaft 24, and a second bevel gear 27 is fixedly provided on the second transmission shaft 25. The first bevel gear 26 and the second bevel gear 27 are meshed with each other. A driven bevel gear 28 is also provided on the second transmission shaft 25, and the driven bevel gear 28 is meshed with the driving bevel gear 10.

[0034] The clutch assembly includes a first clutch disc 29 and a second clutch disc 30. The first clutch disc 29 is fixedly arranged at the upper end of the first transmission shaft 24. A connecting shaft 31 is coaxially fixed to the lower end of the screw rod 15. The second clutch disc 30 is slidably sleeved on the connecting shaft 31 up and down. Specifically, a guide groove is provided on the connecting shaft 31 along its axial direction. A guide block corresponding to the guide groove is provided on the second clutch disc 30. A limiting flange 32 is provided on the upper end of the connecting shaft 31. A tightening spring 33 is sleeved on the connecting shaft 31. The tightening spring 33 is located between the limiting flange 32 and the second clutch disc 30. A trigger assembly is provided between the first rotating seat 12 and the second rotating seat 13. The trigger assembly includes a sliding device A trigger seat 34 is placed on the screw rod 15, and a guide rod 44 is fixedly arranged between the first rotating seat 12 and the second rotating seat 13. The trigger seat 34 is slidably sleeved on the guide rod 44, and a scale is arranged on the guide rod. A trigger rod 35 is arranged below the trigger seat 34, and the length of the trigger rod 35 is adjustable. The trigger rod 35 includes a fixed screw 36 and a trigger head 37 threadedly connected to the fixed screw 36. A toggle ring 39 is fixedly sleeved on the upper end of the second clutch disk 30, and a U-shaped toggle fork 38 is rotatably arranged on the second rotating seat 13. The U-shaped toggle fork 38 corresponds to the toggle ring 39, and the lower end of the trigger head 37 corresponds to the end of the U-shaped toggle fork 38 away from the second clutch disk 30.

[0035] Two upper balancing rollers 40 are symmetrically arranged front and back above the pressure roller 3, and the two upper balancing rollers 40 are slidably arranged up and down along the frame, and two lower balancing rollers 41 are symmetrically arranged front and back below the support roller 4, and the lower balancing rollers 41 are tangent to the support roller 4, and a linkage mechanism is arranged between the two upper balancing rollers 40 and the rotating shaft of the pressure roller 3, and the linkage mechanism is used to adjust the two upper balancing rollers 40 to slide along the frame, and the linkage mechanism includes a connecting frame 42, and the two upper balancing rollers 40 are rotatably arranged on the connecting frame 42, and a guide sliding hole is arranged on the side plate 2 of the frame, and the guide sliding hole is vertically arranged, and a guide positioning rod 43 is slidably arranged in the guide sliding hole, and the lower end of the guide positioning rod 43 is connected to the sliding seat 6, and the upper end is connected to the connecting frame 42, and a spring is arranged in the guide sliding hole, and the spring is sleeved on the guide positioning rod 43, and the upper end of the spring is fixed to the upper end of the guide sliding hole, and the lower end of the spring is fixed to the upper end of the sliding seat 6.

[0036] It should be noted that the upper balancing roller 40, the lower balancing roller 41, the pressure roller 3 and the support roller 4 are all hollow rollers made of stainless steel, which can drive the two upper balancing rollers 40 and the pressure roller 3 to move under the action of the reset spring 9 and the spring sleeved on the guide positioning rod 43.

[0037] Working principle: When rolling the copper foil, firstly, insert the copper foil strip 1 between the pressure roller 3 and the support roller 4, then adjust the tension of the copper foil strip 1, and then adjust the position of the trigger seat 34 to determine the pressing amount of the pressure roller 3, and at the same time adjust the position of the trigger head 37 relative to the fixed screw 36. Then, turn the adjusting ring 18 so that the limit plate 23 drives the pawl 22 to rotate to a state where it is fully engaged with the ratchet wheel 21, as shown in FIG. Fig.10 In this state, the first clutch disc 29 and the second clutch disc 30 are combined with each other under the action of the pressing spring 33.

[0038] When rolling is performed, after the main power motor is started, the pressure roller 3 and the support roller 4 rotate at the same time, the support roller 4 rotates to drive the active bevel gear 10, the active bevel gear 10 drives the driven bevel gear 28 to rotate, so that the second transmission shaft 25 rotates, the first transmission shaft 24 rotates under the transmission action of the first bevel gear 26 and the second bevel gear 27, the first transmission shaft 24 drives the first clutch disk 29 to rotate, so that the second clutch disk 30 drives the screw rod 15 to rotate, the screw rod 15 rotates to drive the slider 16 to move downward along the screw rod 15, the slider 16 drives the mounting ring 17 and the connecting ring 11 to move downward, thereby driving the pressure roller 3 to move. In this process, the pawl 22 is in a clamping state with the ratchet 21, which is equivalent to the slider 16 and the mounting ring 17 being fixed and not sliding relative to each other.

[0039] When the mounting ring 17 moves downward, it gradually approaches the trigger seat 34. When the mounting ring 17 contacts the trigger seat 34 and drives the trigger seat 34 to continue to move downward, the trigger head 37 contacts the U-shaped shift fork 38 and presses down the U-shaped shift fork 38, so that the U-shaped shift fork 38 pries the shift ring 39, thereby making the second clutch disc 30 move away from the first clutch disc 29, that is, the first clutch disc 29 and the second clutch disc 30 are disengaged, so that the first clutch disc 29 idles. In this state, the pressure roller 3 reaches the downward pressure adjustment position, and the copper foil strip 1 rolled thereafter is the copper foil strip 1 with the set parameters. Due to the fully engaged state of the limit plate 23, the pawl 22, and the ratchet wheel 21, as shown in FIG. Fig.10 As shown, the slider 16 cannot rotate freely around the screw 15, that is, the mounting ring 17, the connecting block 19 and the connecting ring 11 remain fixed. In the above process, the sliding seat 6 drives the adjusting rod 7 and the guide positioning rod to move downward, wherein the guide positioning rod drives the connecting frame 42 and the upper balancing roller 40 to move downward, wherein the reset spring 9 is compressed.

[0040] After the rolling is completed, the main power motor is turned off, and then the rotation adjustment ring 18 is adjusted so that the limit plate 23 drives the pawl 22 to rotate to a state where it is completely unengaged with the ratchet wheel 21. Fig.11 As shown, at this time, the slider 16 and the ratchet 21 can rotate around the screw, and then under the action of the reset spring 9, the adjusting rod 7 drives the sliding seat to move upward, so that the pressure roller 3 moves upward. In this process, the connecting ring 11 drives the mounting ring 17 and the connecting block 19 to move upward. At this time, the slider 16 rotates normally around the screw 15. At the same time, under the action of the clamping spring 33, the U-shaped shift fork 38 is reset and the trigger seat 34 is reset. Finally, the pressure roller 3 and the upper balancing roller 40 return to their initial state.

[0041] It should be noted that there is no self-locking between the slider 16 and the screw rod 15. Therefore, when the ratchet 21 and the pawl 22 are not engaged, the ratchet 21 and the slider 16 can move along the length direction of the screw rod 15 under the action of the mounting ring 17. At the same time, the slider 16 and the ratchet 21 rotate around the screw rod. In this embodiment, the slider 16 and the screw rod 15 are ball screw slider assemblies.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Within the technical scope disclosed by the present invention, technicians familiar with the technical field can make equivalent replacements or changes based on the technical scheme and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for accurately controlling the pressing amount of the rollers of a six-roll copper foil rolling mill, characterized in that The invention comprises a frame, on which a pressure roller (3) and a support roller (4) are rotatably arranged, the pressure roller (3) is located above the support roller (4), two upper balancing rollers (40) are symmetrically arranged above the pressure roller (3), the two upper balancing rollers (40) are slidably arranged up and down along the frame, two lower balancing rollers (41) are symmetrically arranged below the support roller (4), the lower balancing rollers (41) are tangent to the support roller (4), an adjustment mechanism is arranged between the rotating shaft of the pressure roller (3) and the rotating shaft of the support roller (4), the adjustment mechanism is used to adjust the distance between the pressure roller (3) and the support roller (4), a linkage mechanism is arranged between the two upper balancing rollers (40) and the rotating shaft of the pressure roller (3), the linkage mechanism is used to adjust the two upper balancing rollers (40) to slide along the frame; The adjusting mechanism comprises an active bevel gear (10) coaxially fixed on the rotating shaft of the support roller (4) and a connecting ring (11) sleeved on the rotating shaft of the pressure roller (3); a first rotating seat (12), a second rotating seat (13) and a third rotating seat (14) are fixedly arranged on the side plate (2) of the frame; a screw rod (15) is rotatably arranged on the first rotating seat (12); the screw rod (15) is arranged in a vertical direction, and a screw rod (15) is provided on the screw rod (15) to cooperate with the screw rod The slider (16) is provided with a mounting ring (17) and an adjusting ring (18) on the screw rod (15); the mounting ring (17) and the connecting ring (11) are connected via a connecting block (19); a mounting groove (20) is provided on the mounting ring (17); the slider (16) is located in the mounting groove (20); the adjusting ring (18) is used to block the mounting groove (20); a ratchet (21) is fixedly provided on the slider (16); a gear (21) is rotatably provided in the mounting groove (20) and is engaged with the ratchet (21) A corresponding pawl (22) is provided at the rotation axis of the pawl (22), a torsion spring is provided at the lower end of the adjusting ring (18) and a limit plate (23) corresponding to the pawl (22) is provided, the relative position of the limit plate (23) and the pawl (22) is adjusted by rotating the adjusting ring (18) to change the clamping state of the ratchet wheel (21) and the pawl (22), and a first transmission shaft (24) is rotatably provided on the second rotating seat (13), and the upper end of the first transmission shaft (24) is connected to the lower end of the screw rod (15). A clutch assembly is arranged between the two ends, a second transmission shaft (25) is rotatably arranged on the third rotating seat (14), a first bevel gear (26) is fixedly arranged on the first transmission shaft (24), a second bevel gear (27) is fixedly arranged on the second transmission shaft (25), the first bevel gear (26) and the second bevel gear (27) are meshed with each other, a driven bevel gear (28) is also arranged on the second transmission shaft (25), and the driven bevel gear (28) and the driving bevel gear (10) are meshed with each other; The clutch assembly comprises a first clutch disc (29) and a second clutch disc (30), wherein the first clutch disc (29) is fixedly arranged at the upper end of the first transmission shaft (24), a connecting shaft (31) is coaxially fixed to the lower end of the screw rod (15), the second clutch disc (30) is slidably sleeved on the connecting shaft (31) up and down, a limiting flange (32) is arranged at the upper end of the connecting shaft (31), a pressing spring (33) is sleeved on the connecting shaft (31), and the pressing spring (33) is located between the limiting flange (32) and the second clutch disc (30), and a trigger assembly is arranged between the first rotating seat (12) and the second rotating seat (13), and the trigger assembly is used to control the engagement or disengagement between the first clutch disc (29) and the second clutch disc (30); The trigger assembly comprises a trigger seat (34) slidably arranged on the screw rod (15), a trigger rod (35) is arranged below the trigger seat (34), and the length of the trigger rod (35) is adjustable; a toggle ring (39) is fixedly sleeved on the upper end of the second clutch disc (30), a U-shaped toggle fork (38) is rotatably arranged on the second rotating seat (13), the U-shaped toggle fork (38) corresponds to the toggle ring (39), and the lower end of the trigger rod (35) corresponds to an end of the U-shaped toggle fork (38) away from the second clutch disc (30).

2. The device for accurately controlling the pressing amount of the rollers of a six-roll copper foil rolling mill according to claim 1 is characterized in that: The frame comprises two left and right side plates (2), the side plates (2) are provided with adjustment holes (5), a sliding seat (6) is slidably arranged in the adjustment hole (5), the rotating shaft of the pressing roller (3) rotates in the sliding seat (6), the side plates (2) are provided with vertical sliding holes, an adjustment rod (7) is slidably arranged in the sliding hole, the lower end of the adjustment rod (7) is fixedly connected to the sliding seat (6), the upper end of the adjustment rod (7) is fixedly provided with a limit nut (8), the adjustment rod (7) is sleeved with a reset spring (9), and the reset spring (9) is located between the limit nut (8) and the side plates (2).

3. The device for accurately controlling the pressing amount of the rollers of a six-roll copper foil rolling mill according to claim 1 is characterized in that: Three ratchet claws (22) are arranged at equal intervals on the circumference, and three limit plates (23) are arranged at equal intervals on the circumference of the lower end of the adjustment ring (18). The limit plates (23) are arc-shaped plates tangent to the mounting groove (20).

4. The device for accurately controlling the pressing amount of the rollers of a six-roll copper foil rolling mill according to claim 1 is characterized in that: A guide rod (44) is fixedly arranged between the first rotating seat (12) and the second rotating seat (13), the trigger seat (34) is slidably sleeved on the guide rod, a scale is arranged on the guide rod (44), and the trigger rod (35) comprises a fixed screw rod (36) and a trigger head (37) threadedly connected to the fixed screw rod (36).

5. The device for accurately controlling the pressing amount of the rollers of a six-roll copper foil rolling mill according to claim 2 is characterized in that: The linkage mechanism comprises a connecting frame (42), two upper balancing rollers (40) are rotatably arranged on the connecting frame (42), a guide sliding hole is arranged on the side plate (2) of the frame, the guide sliding hole is vertically arranged, a guide positioning rod (43) is slidably arranged in the guide sliding hole, the lower end of the guide positioning rod (43) is connected to the sliding seat (6), and the upper end is connected to the connecting frame (42).

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