An adjustable uncoiling device for color aluminum coil processing

Abstract

The present invention relates to the technical field of color aluminum coil processing, specifically an adjustable unwinding device for color aluminum coil processing, including an expansion and contraction shaft assembly, expandable tiles are evenly arranged around the four sides of the expansion and contraction shaft assembly, and also includes: a pressure roller assembly, wherein the pressure roller assemblies are provided in plurality and are arranged around the circumference of the expansion and contraction shaft assembly, the plurality of pressure roller assemblies at least include a first pressure roller assembly, a second pressure roller assembly and a third pressure roller assembly with the same main body structure, the plurality of pressure roller assemblies are all transmission-connected with a tensioning and closing drive assembly, the tensioning and closing drive assembly is used to control all the pressure roller assemblies to synchronously approach or move away from the expansion and contraction shaft assembly, the first pressure roller assembly includes a pressure roller body with a length not less than the tile, and a reinforcing stabilizing rod is provided at one end of the pressure roller body away from the tensioning and closing drive assembly. One of the improvements of the present invention is to minimize the risk of wear in the production process of color aluminum coils as much as possible to improve the production quality of color aluminum coils.

Description

Technical Field

[0001] The invention relates to the technical field of color aluminum coil processing, in particular to an adjustable uncoiling device for color aluminum coil processing. Background Art

[0002] Color-coated aluminum coils are aluminum coils that have been treated with a color coating. Common examples include fluorocarbon colored aluminum coils and polyester colored aluminum coils. They are widely used in aluminum-plastic panels, aluminum veneers, aluminum honeycomb panels, aluminum ceilings, roofing, scraps, cans, and electronic products. After being cleaned, chromized, roller-coated, and baked, the surface of the plain aluminum coils is coated with a coating of various colors, which is also known as color-coated aluminum coils. Color-coated aluminum is widely used in many fields, including insulation panels, aluminum curtain walls, aluminum-magnesium-manganese roofing systems, and aluminum ceilings, due to its light weight, bright colors, easy processing and resistance to rust.

[0003] The prior art has the following problems:

[0004] Colored aluminum coils have a paint film on their surface. Compared to ordinary aluminum coils, if relative sliding occurs between layers, the paint film will be scratched. Unconstant tension will also cause relative sliding between layers. Common uncoilers on the market generally use mechanical braking or clamp braking, and are equipped with a pressure roller to assist in tightening and adjusting the tension. The pressure roller of the uncoiler is smaller than the length of the aluminum coil. If the pressure is too high, the pressure roller will cause indentations on the paint film surface of the colored aluminum coil. If the pressure is too low, the auxiliary pressing effect is difficult to achieve and the pressure adjustment is difficult to control. Summary of the Invention

[0005] The object of the present invention is to provide an adjustable uncoiling device for color aluminum coil processing to solve the problems raised in the above background technology.

[0006] The technical solution of the present invention is: an adjustable unwinding device for processing colored aluminum coils, comprising an expansion and contraction shaft assembly, wherein expandable and contractible tiles are evenly arranged around the expansion and contraction shaft assembly, and further comprising:

[0007] A plurality of pressure roller assemblies are provided and are arranged around the circumference of the expansion and contraction shaft assembly. The plurality of pressure roller assemblies include at least a first pressure roller assembly, a second pressure roller assembly, and a third pressure roller assembly having the same main structure. The plurality of pressure roller assemblies are all transmission-connected to an opening and closing drive assembly, which is used to control all of the pressure roller assemblies to synchronously approach or move away from the expansion and contraction shaft assembly.

[0008] The first pressing roller assembly includes a pressing roller body with a length not less than that of the tile. A reinforcing stabilizing rod is provided at one end of the pressing roller body away from the opening and closing drive assembly, and the reinforcing stabilizing rod is detachably connected to the expansion and contraction shaft assembly.

[0009] The above technical solution can reduce the risk of wear and tear in the production process of colored aluminum coils as much as possible, thereby improving the production quality of colored aluminum coils.

[0010] Furthermore, the expansion and contraction shaft assembly further includes a sleeve, the sleeve and the main shaft are slidably matched, and the sliding surface between the tile and the sleeve is an inclined surface, the main shaft is slidably arranged in the sleeve, the main shaft is rotatably connected to the frame, and the axis of the main shaft is provided with a through hole along the length direction, the main shaft is provided with a hydraulic cylinder at one end away from the sleeve, and the output shaft of the hydraulic cylinder passes through the through hole of the main shaft axis and is connected to the sleeve;

[0011] A baffle is fixedly provided on the main shaft, and the tile is in sliding engagement with the baffle;

[0012] The main shaft is connected to the output shaft of the reducer through a belt transmission, and the input shaft of the reducer is connected to the main motor through a clutch.

[0013] Furthermore, two tracks are provided on one side of the frame, and a winding trolley is provided on the tracks;

[0014] The upper winding trolley includes a base, on which a trolley drive motor is provided. The trolley drive motor is connected to a roller through an axis transmission. The roller is set on the track. A supporting platform is provided on the top of the base, and a lifting control hydraulic cylinder is connected between the supporting platform and the base.

[0015] Furthermore, the pressing roller body is rotatably connected to one end of the elastic arm, the other end of the elastic arm is rotatably connected to the first input shaft, and the first input shaft is rotatably connected to the frame;

[0016] The elastic arm is connected to the fixed arm through a hydraulic spring telescopic rod, and one end of the fixed arm is fixedly connected to the first input shaft.

[0017] The above technical solution can ensure that the pressing roller body is always attached to the surface of the colored aluminum coil.

[0018] Furthermore, the first input shaft is in transmission connection with the opening and closing drive assembly, which includes a special-shaped ring gear, which is rotatably connected to the frame, and the special-shaped ring gear is provided with a section of convex teeth and a section of worm gear teeth, wherein the section of convex teeth is meshedly connected with a first driven gear, and the first driven gear is fixed to the first input shaft, and the first input shaft is rotatably connected to the frame;

[0019] A section of worm gear teeth on the special-shaped gear ring is meshed with a worm, the worm is rotatably connected to the frame, and a gear is fixedly provided on the worm, the gear is meshed with a rack, and the rack is fixedly connected to the base.

[0020] The above technical solution can make all the pressing roller assemblies press and hold on the surface of the colored aluminum coil synchronously.

[0021] Furthermore, the hydraulic spring telescopic rod comprises a slidingly fitted cylinder and a piston rod, the piston rod being connected to the bottom edge of the rear end of the cylinder via a supporting spring;

[0022] The tail end of the cylinder is hinged to the fixed arm, and the end of the piston rod extending out of the cylinder is hinged to a sliding seat, which is slidably connected to the elastic arm;

[0023] The first pressing roller assembly further includes a limiting rod, which is located on one side of the elastic arm.

[0024] The above technical solution enables the pressure roller body 31 to generate a greater pressing force, adapt to the change of torque, and provide appropriate tension.

[0025] Furthermore, an oil outlet is provided on one side of the front end of the cylinder, and the oil outlet is connected to a generator through a speed regulating component;

[0026] The speed regulating assembly includes two sets of conical wheels, which are respectively connected to the transmission shaft and the main shaft. Each set of conical wheels includes a driving wheel and a fixed wheel arranged in a mirror image. The driving wheel on the transmission shaft is slidably connected to the transmission shaft, and the fixed wheel on the transmission shaft is fixedly connected to the transmission shaft. The driving wheel on the main shaft is slidably connected to the main shaft, and the fixed wheel on the main shaft is fixedly connected to the main shaft. A V-shaped steel belt is connected between the driving wheel and the fixed wheel on the main shaft and the driving wheel and the fixed wheel on the transmission shaft.

[0027] The moving wheel on the main shaft and the moving wheel on the transmission shaft are each rotatably connected to a swivel frame, and the two swivel frames are both connected to a push-pull oil cylinder, one end of the push-pull oil cylinder is connected to the frame, and the push-pull oil cylinder is connected to the oil outlet through an oil pipe;

[0028] The transmission shaft is connected with a generator.

[0029] Furthermore, a reinforcing stabilizing rod is provided at one end of the elastic arm close to the roller body, the reinforcing stabilizing rod is slidably connected to a swivel seat, the swivel seat is rotatably connected to the elastic arm, and a positioning spring is connected between the swivel seat and the elastic arm;

[0030] One end of the reinforcing stabilizing rod away from the elastic arm is connected to a buckle suction piece. The front end of the main shaft is provided with an extension shaft, and the extension shaft is provided with a magnetic rotating sleeve. The magnetic rotating sleeve is magnetically matched with the buckle suction piece.

[0031] Furthermore, the pressure roller body 31 is connected to the elastic arm through a tightening member 32 . The tightening member 32 is connected to the elastic arm in a major arc shape. The tightening member 32 is in a major arc shape.

[0032] Furthermore, the second input shaft of the second pressing roller assembly is meshedly connected with the special-shaped ring gear through a gear pair;

[0033] The third input shaft of the third pressure roller assembly is meshed with the special-shaped gear ring through a transmission assembly. The transmission assembly includes a rotating shaft, which is respectively connected to the third driven gear and the third input shaft through a first transmission belt and a second transmission belt.

[0034] Through the above technical solution, the second pressing roller assembly 4 and the third pressing roller assembly 5 can cooperate with the opening and closing drive assembly to achieve the effect of synchronous operation.

[0035] The present invention provides an adjustable unwinding device for color aluminum coil processing through improvement. Compared with the prior art, it has the following improvements and advantages:

[0036] First, one of the improvements of the present invention is to minimize the risk of wear and tear during the production process of colored aluminum coils, thereby improving the production quality of colored aluminum coils. After the pressure roller body is designed to be longer, it can fit the colored aluminum coil more evenly, thereby avoiding the problem of indentation caused by excessive contact pressure in a small area. In addition, the synchronous operation of all the pressure roller assemblies can not only ensure work efficiency, but also ensure the stability and consistency of all the pressure roller assemblies, avoiding the incoordination of individual pressure roller assemblies, making the unwinding of the colored aluminum coil more stable.

[0037] Secondly, in the present invention, the elastic arm is elastic under the support of the hydraulic spring telescopic rod, so that the pressure roller body can elastically press the colored aluminum coil. As the unwinding diameter of the colored aluminum coil becomes smaller, it always sticks to the surface of the colored aluminum coil. Since the diameter of the colored aluminum coil becomes shorter and its own weight becomes lighter after unwinding, the torque is also reduced. The support spring can use its own elastic force to push the elastic arm to rotate toward the main axis, wherein the piston rod is slidably connected to the elastic arm. As the elastic arm rotates, the connection position of the piston rod and the elastic arm is also constantly changing, making the resistance arm shorter. The force-increasing effect generated by the shortening of the resistance arm is greater than the elastic force attenuation caused by the extension of the support spring, thereby allowing the pressure roller body to generate a greater pressing force, adapt to the change of torque, and provide appropriate tension.

[0038] Thirdly, in the present invention, when the piston rod extends out of the cylinder, the piston of the piston rod can push the hydraulic oil at the front end of the cylinder to flow out, and all the pressing roller assemblies can deliver hydraulic oil into the push-pull cylinder as the diameter of the colored aluminum coil becomes smaller, so that the push-pull cylinder is shortened, and the moving wheel on the transmission shaft is pulled away from the fixed wheel, and at the same time, the moving wheel on the main shaft is pulled closer to the fixed wheel, so that the transmission ratio between a group of conical wheels on the transmission shaft and a group of conical wheels on the main shaft becomes smaller, the speed of the transmission shaft becomes faster, the torque increases, the relative resistance of the generator feedback is also greater, and then the rotational resistance of the main shaft is also greater, the tension increases, and the effect of automatic tension according to the reduction of the diameter of the colored aluminum coil is achieved;

[0039] Fourthly: In the present invention, the worm can push the special-shaped gear ring to rotate when it rotates, and the gear on the worm is meshed with the rack, so that the base of the winding trolley can rotate the special-shaped gear ring by pushing and pulling the rack, so that when the winding trolley is winding, all the pressure roller assemblies can be synchronously deployed and avoided, and after the winding trolley is pulled out, all the pressure roller assemblies can be synchronously pressed on the surface of the colored aluminum coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention will be further explained below in conjunction with the accompanying drawings and examples:

[0041] Figure 1 It is a front view of the three-dimensional structure of the present invention;

[0042] Figure 2 The present invention Figure 1 A in the middle is an enlarged structural diagram;

[0043] Figure 3 It is a rear view of the three-dimensional structure of the present invention;

[0044] Figure 4 is a side view of the present invention;

[0045] Figure 5 This is a schematic diagram of the three-dimensional structure of the opening and closing drive assembly of the present invention;

[0046] Figure 6 is a schematic diagram of the three-dimensional structure of the first pinch roller assembly of the present invention;

[0047] Figure 7 The present invention Figure 6 The enlarged structural diagram at B in the middle;

[0048] Figure 8 is a side view of the tightening member of the present invention;

[0049] Figure 9 It is a schematic diagram of the three-dimensional structure of the transmission assembly of the present invention;

[0050] Figure 10 It is a schematic diagram of the base structure of the present invention;

[0051] Figure 11 It is a schematic structural diagram of the speed regulating assembly of the present invention;

[0052] Figure 12 This is a front view of the hydraulic spring telescopic rod of the present invention;

[0053] Figure 13 This is a cross-sectional view of the hydraulic spring telescopic rod of the present invention at position DD;

[0054] Figure 14 is a side view of the expansion and contraction shaft assembly of the present invention;

[0055] Figure 15 The present invention Figure 14 Cross-sectional view at CC;

[0056] Figure 16 It is a schematic diagram of the three-dimensional structure of the expansion and contraction shaft assembly of the present invention.

[0057] Description of reference numerals:

[0058] 1. Expansion and contraction shaft assembly;

[0059] 11. Main shaft; 11a. Belt; 11b. Reducer; 11c. Clutch; 11d. Main motor; 12. Tiles; 13. Sleeve; 14. Magnetic sleeve; 15. Hydraulic cylinder; 16. Baffle; 17. Extension shaft;

[0060] 2. Opening and closing drive components;

[0061] 21. Special-shaped ring gear; 22. Worm; 23. Gear; 24. Rack;

[0062] 3. First pinch roller assembly;

[0063] 31. Press roller body; 32. Clamping member; 33. Elastic arm; 34. Hydraulic spring telescopic rod; 341. Cylinder; 342. Piston rod; 343. Oil outlet; 344. Support spring; 35. Limit rod; 36. Fixed arm; 37. Strengthening stabilizing rod; 371. Rotating seat; 372. Positioning spring; 38. Snap-on member; 39. First driven gear; 310. First input shaft; 311. Sliding seat;

[0064] 4. Second pressing roller assembly;

[0065] 41. Gear pair; 42. Second input shaft;

[0066] 5. The third pressing roller assembly;

[0067] 51, transmission assembly; 511, third driven gear; 512, first transmission belt; 513, intermediate shaft; 514, second transmission belt; 52, third input shaft;

[0068] 6. Winding trolley;

[0069] 61. Cap; 62. Base; 63. Roller; 64. Trolley drive motor; 65. Lift control hydraulic cylinder;

[0070] 7. Rack;

[0071] 8. Speed ​​regulating assembly; 81. Oil delivery pipe; 82. Conical wheel; 83. Swivel frame; 84. Push-pull cylinder; 85. V-shaped steel belt; 86. Drive shaft;

[0072] 9. Generator. DETAILED DESCRIPTION

[0073] The present invention is described in detail below, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0074] Example 1:

[0075] The present invention provides an adjustable unwinding device for color aluminum coil processing by improvement. Figure 1 - Figure 16 As shown, an adjustable unwinding device for processing colored aluminum coils includes an expansion shaft assembly 1, with expandable tiles 12 evenly arranged around the expansion shaft assembly 1, and further includes:

[0076] The pressure roller assembly is provided with a plurality of pressure roller assemblies, and the pressure roller assemblies are arranged around the circumference of the expansion and contraction shaft assembly 1. The plurality of pressure roller assemblies include at least a first pressure roller assembly 3, a second pressure roller assembly 4 and a third pressure roller assembly 5 with the same main structure. The plurality of pressure roller assemblies are all transmission-connected to the opening and closing drive assembly 2, and the opening and closing drive assembly 2 is used to control all the pressure roller assemblies to synchronously approach or move away from the expansion and contraction shaft assembly 1; the functional structure of the first pressure roller assembly 3, the second pressure roller assembly 4 and the third pressure roller assembly 5 is the same, that is, they can all press and hold the colored aluminum coil, but the difference is that the transmission structure of the three and the opening and closing drive assembly 2 is adaptively designed according to the actual situation; the synchronous operation of all the pressure roller assemblies can ensure work efficiency, and all the pressure roller assemblies are linked together through the opening and closing drive assembly 2, which can also ensure the stability and consistency of all the pressure roller assemblies, avoiding the incoordination of a single pressure roller assembly;

[0077] The first pressure roller assembly 3 includes a pressure roller body 31 with a length not less than the tile 12. A reinforcing stabilizing rod 37 is provided at one end of the pressure roller body 31 away from the opening and closing drive assembly 2. The reinforcing stabilizing rod 37 is detachably connected to the expansion and contraction shaft assembly 1. After the pressure roller body 31 is designed to be longer, once it is not parallel to the color aluminum coil, there is only partial contact between the curved surface of the pressure roller body 31 and the color aluminum coil, which will cause uneven pressure. The function of the reinforcing stabilizing rod 37 is to support both ends of the first pressure roller assembly 3, and one end is also connected to the expansion and contraction shaft assembly 1, which can ensure the parallelism of the first pressure roller assembly 3 and the expansion and contraction shaft assembly 1 as much as possible, and then ensure the parallelism of the pressure roller body 31 and the color aluminum coil, so that the pressure roller body 31 can still be stably and evenly fitted with the color aluminum coil after having a longer length.

[0078] The improvement of the present invention is mainly to reduce the risk of wear and tear in the production process of the colored aluminum coil as much as possible, so as to improve the production quality of the colored aluminum coil.

[0079] Furthermore, the expansion and contraction shaft assembly 1 also includes a sleeve 13, which is slidably matched with the main shaft 11. A sliding structure of a spline shaft and a spline sleeve is formed between the sleeve 13 and the main shaft 11, and the sliding surface between the tile 12 and the sleeve 13 is an inclined surface. The main shaft 11 is slidably arranged in the sleeve 13, and the main shaft 11 is rotatably connected to the frame 7. A through hole is opened along the length direction of the axis of the main shaft 11. A hydraulic cylinder 15 is provided at one end of the main shaft 11 away from the sleeve 13, and the output shaft of the hydraulic cylinder 15 passes through the through hole of the axis of the main shaft 11 and is connected to the sleeve 13; the hydraulic cylinder 15 pulls the sleeve 13 to push the tile 12 to expand around the sleeve 13, thereby tightening and fixing the inner ring of the colored aluminum coil;

[0080] The main shaft 11 is fixedly provided with a baffle 16, and the tile 12 is slidably engaged with the baffle 16; the baffle 16 is used to limit the sliding direction of the tile 12;

[0081] The main shaft 11 is connected to the output shaft of the reducer 11b through a belt 11a, and the input shaft of the reducer 11b is connected to the main motor 11d through a clutch 11c; the main motor 11d is used to slowly drive the colored aluminum coil to rotate and unfold when the equipment starts. After the colored aluminum coil rotates, the clutch 11 is disconnected, and the subsequent traction equipment drives the colored aluminum coil to rotate passively.

[0082] like Figure 1 、 Figure 4 and Figure 10 As shown in , two tracks are provided on one side of the frame 7, and a winding trolley 6 is provided on the track;

[0083] The upper winding trolley 6 includes a base 62, on which a trolley drive motor 64 is provided. The trolley drive motor 64 is connected to a roller 63 through an axis transmission. The roller 63 is set on the track. A base 62 is provided with a pedestal 61 on the top of the base 62, and a lifting control hydraulic cylinder 65 is connected between the pedestal 61 and the base 62; the pedestal 61 is used to place the colored aluminum coil, and the lifting control hydraulic cylinder 65 is used to push the colored aluminum coil placed on the pedestal 61 to the height of the main shaft 11 and align it with the main shaft 11, so that the colored aluminum coil can be automatically put on the main shaft 11.

[0084] like Figure 1 and Figure 6 As shown in , the pressing roller body 31 is rotatably connected to one end of the elastic arm 33, and the other end of the elastic arm 33 is rotatably connected to the first input shaft 310, and the first input shaft 310 is rotatably connected to the frame 7;

[0085] The elastic arm 33 is connected to a fixed arm 36 via a hydraulic spring telescopic rod 34, and one end of the fixed arm 36 is fixedly connected to the first input shaft 310; the elastic arm 33 has elasticity under the support of the hydraulic spring telescopic rod 34, thereby enabling the pressure roller body 31 to elastically press the colored aluminum coil. As the unwinding diameter of the colored aluminum coil decreases, the pressure roller body 31 always sticks to the surface of the colored aluminum coil.

[0086] like Figure 1 and Figure 5 As shown in , the first input shaft 310 is transmission-connected to the opening and closing drive assembly 2, and the opening and closing drive assembly 2 includes a special-shaped ring gear 21, which is rotationally connected to the frame 7, and the special-shaped ring gear 21 is provided with a section of convex teeth and a section of worm gear teeth, wherein the section of convex teeth is meshedly connected to the first driven gear 39, and the first driven gear 39 is fixed to the first input shaft 310, and the first input shaft 310 is rotationally connected to the frame 7;

[0087] A worm gear 22 is meshed with the worm gear on the special-shaped gear ring 21, and the worm gear 22 is rotatably connected to the frame 7. A gear 23 is fixedly provided on the worm gear 22, and the gear 23 is meshed with the rack 24, and the rack 24 is fixedly connected to the base 62; Figure 5 As shown in the figure, when the worm 22 rotates, it can push the special-shaped gear ring 21 to rotate, and the gear 23 on the worm 22 is meshed with the rack 24, so that the base 62 of the winding trolley 6 can rotate the special-shaped gear ring 21 by pushing and pulling the rack 24, so that when the winding trolley 6 is winding, all the pressure roller assemblies can be synchronously deployed and avoided, and after the winding trolley 6 is pulled out, all the pressure roller assemblies can be synchronously pressed on the surface of the colored aluminum coil.

[0088] like Figure 1 、 Figure 12 and Figure 13 As shown, the hydraulic spring telescopic rod 34 includes a sliding-fitting cylinder 341 and a piston rod 342 , and the piston rod 342 is connected to the bottom edge of the tail end of the cylinder 341 through a supporting spring 344 ;

[0089] The tail end of the cylinder 341 is hinged to the fixed arm 36, and the end of the piston rod 342 extending out of the cylinder 341 is hinged to the slide 311, and the slide 311 is slidably connected to the elastic arm 33;

[0090] The first clamping roller assembly 3 also includes a limit rod 35, which is located on one side of the elastic arm 33; since the diameter of the colored aluminum coil becomes shorter and its own weight becomes lighter after unwinding, the torque is also reduced, and the support spring 344 can use its own elastic force to push the elastic arm 33 to rotate toward the main shaft 11, wherein the piston rod 342 is slidingly connected to the elastic arm 33. As the elastic arm 33 rotates, the connection position of the piston rod 342 and the elastic arm 33 is also constantly changing, making the resistance arm shorter, wherein the force-increasing effect generated by the shortening of the resistance arm is greater than the elastic force attenuation caused by the elongation of the support spring 344, thereby allowing the pressure roller body 31 to generate a greater holding force, adapt to the change of torque, provide appropriate tension, and improve the stability during the unwinding process.

[0091] Furthermore, an oil outlet 343 is provided on one side of the front end of the cylinder 341, and the oil outlet 343 is connected to a generator 9 through a speed regulating assembly 8;

[0092] The speed regulating assembly 8 includes two sets of conical wheels 82, which are respectively connected to the transmission shaft 86 and the main shaft 11. Each set of conical wheels 82 includes a driving wheel and a fixed wheel arranged in a mirror image, wherein the driving wheel on the transmission shaft 86 is slidably connected to the transmission shaft 86, and the fixed wheel on the transmission shaft 86 is fixedly connected to the transmission shaft 86, while the driving wheel on the main shaft 11 is slidably connected to the main shaft 11, and the fixed wheel on the main shaft 11 is fixedly connected to the main shaft 11. A V-shaped steel belt 85 is connected between the driving wheel and the fixed wheel on the main shaft 11 and the driving wheel and the fixed wheel on the transmission shaft 86;

[0093] The moving wheel on the main shaft 11 and the moving wheel on the transmission shaft 86 are each rotatably connected to a swivel frame 83, and the two swivel frames 83 are both connected to a push-pull oil cylinder 84, one end of the push-pull oil cylinder 84 is connected to the frame 7, and the push-pull oil cylinder 84 is connected to the oil outlet 343 through the oil pipe 81; when the piston rod 342 extends outward from the cylinder barrel 341, the piston of the piston rod 342 can push the hydraulic oil at the front end of the cylinder barrel 341 to flow out, and all the pressing roller assemblies can deliver hydraulic oil in as the diameter of the colored aluminum coil becomes smaller. The push-pull oil cylinder 84 is inserted to shorten the push-pull oil cylinder 84, pulling the moving wheel on the transmission shaft 86 away from the fixed wheel, and at the same time pulling the moving wheel on the main shaft 11 closer to the fixed wheel, so that the transmission ratio between the set of conical wheels 82 on the transmission shaft 86 and the set of conical wheels 82 on the main shaft 11 becomes smaller, the speed of the transmission shaft 86 becomes faster and the torque increases, the relative resistance fed back by the generator 9 is also greater, and then the rotational resistance of the main shaft 11 is also greater, and the tension is increased, achieving the effect of automatic tension according to the reduction of the diameter of the colored aluminum coil.

[0094] The transmission shaft 86 is connected to the generator 9; the rotation of the generator 9 itself has resistance, which can provide a braking effect. The present invention can still set a conventional braking structure to complement the braking effect of the generator 9. In the case where the braking effect of the generator 9 is insufficient, the conventional braking structure can assist in braking.

[0095] The electricity generated by the generator 9 can be stored in a battery and fed back to the electric components on the device.

[0096] like Figure 1 and Figure 9 As shown, the second input shaft 42 of the second pressing roller assembly 4 is meshed and connected with the special-shaped ring gear 21 through the gear pair 41;

[0097] The third input shaft 52 of the third pressure roller assembly 5 is meshed with the special-shaped gear ring 21 through the transmission assembly 51. The transmission assembly 51 includes a rotating shaft 513, and the rotating shaft 513 is respectively connected to the third driven gear 511 and the third input shaft 52 through the first transmission belt 512 and the second transmission belt 514; this structure enables the second pressure roller assembly 4 and the third pressure roller assembly 5 to cooperate with the opening and closing drive assembly 2 to achieve the effect of synchronous operation.

[0098] Example 2:

[0099] The present invention provides an adjustable unwinding device for color aluminum coil processing by improvement. Figure 1 - Figure 16 As shown, an adjustable unwinding device for processing colored aluminum coils includes an expansion shaft assembly 1, with expandable tiles 12 evenly arranged around the expansion shaft assembly 1, and further includes:

[0100] A plurality of pressure roller assemblies are provided and are arranged around the circumference of the expansion and contraction shaft assembly 1. The plurality of pressure roller assemblies include at least a first pressure roller assembly 3, a second pressure roller assembly 4, and a third pressure roller assembly 5 having the same main structure. The plurality of pressure roller assemblies are all transmission-connected to an opening and closing drive assembly 2, which is used to control all the pressure roller assemblies to synchronously approach or move away from the expansion and contraction shaft assembly 1.

[0101] The first pressing roller assembly 3 includes a pressing roller body 31 with a length not less than that of the tile 12 . A reinforcing stabilizing rod 37 is provided at one end of the pressing roller body 31 away from the opening and closing drive assembly 2 . The reinforcing stabilizing rod 37 is detachably connected to the expansion and contraction shaft assembly 1 .

[0102] Furthermore, the expansion and contraction shaft assembly 1 also includes a sleeve 13, which is slidably matched with the main shaft 11. A sliding structure of a spline shaft and a spline sleeve is formed between the sleeve 13 and the main shaft 11, and the sliding surface between the tile 12 and the sleeve 13 is an inclined surface. The main shaft 11 is slidably arranged in the sleeve 13, and the main shaft 11 is rotatably connected to the frame 7. A through hole is opened along the length direction of the axis of the main shaft 11. A hydraulic cylinder 15 is provided at one end of the main shaft 11 away from the sleeve 13, and the output shaft of the hydraulic cylinder 15 passes through the through hole of the axis of the main shaft 11 and is connected to the sleeve 13;

[0103] A baffle 16 is fixedly provided on the main shaft 11, and the tile 12 is in sliding engagement with the baffle 16;

[0104] The main shaft 11 is connected to the output shaft of the reducer 11 b through a belt 11 a , and the input shaft of the reducer 11 b is connected to the main motor 11 d through a clutch 11 c .

[0105] like Figure 1 、 Figure 4 and Figure 10 As shown in , two tracks are provided on one side of the frame 7, and a winding trolley 6 is provided on the track;

[0106] The upper winding trolley 6 includes a base 62, on which a trolley drive motor 64 is provided. The trolley drive motor 64 is connected to a roller 63 through an axis transmission. The roller 63 is set on the track. A supporting platform 61 is provided on the top of the base 62, and a lifting control hydraulic cylinder 65 is connected between the supporting platform 61 and the base 62.

[0107] like Figure 1 and Figure 6 As shown in , the pressing roller body 31 is rotatably connected to one end of the elastic arm 33, and the other end of the elastic arm 33 is rotatably connected to the first input shaft 310, and the first input shaft 310 is rotatably connected to the frame 7;

[0108] The elastic arm 33 is connected to a fixed arm 36 via a hydraulic spring telescopic rod 34 , and one end of the fixed arm 36 is fixedly connected to the first input shaft 310 .

[0109] Furthermore, a reinforcing stabilizing rod 37 is provided at one end of the elastic arm 33 close to the roller body 31. The reinforcing stabilizing rod 37 is slidably connected to a swivel seat 371. The swivel seat 371 is rotatably connected to the elastic arm 33, and a positioning spring 372 is connected between the swivel seat 371 and the elastic arm 33. The reinforcing stabilizing rod 37 can automatically adjust its angle as the elastic arm 33 gradually approaches the main shaft 11, thereby playing an auxiliary supporting role and having a certain limiting effect.

[0110] The end of the reinforcing stabilizing rod 37 away from the elastic arm 33 is connected to a buckle suction piece 38, which can be an electromagnet. The front end of the main shaft 11 is provided with an extension shaft 17, and the extension shaft 17 is provided with a magnetic rotating sleeve 14. The magnetic rotating sleeve 14 is magnetically engaged with the buckle suction piece 38; the buckle suction piece 38 can be flexibly connected or separated from the magnetic rotating sleeve 14.

[0111] like Figure 8 As shown, the pressure roller body 31 is connected to the elastic arm 33 through a tightening piece 32. The tightening piece 32 is connected to the elastic arm 33 in an arc shape. The tightening piece 32 is in an arc shape. The tightening piece 32 can improve the stability of the pressure roller body 31 without hindering the contact between the pressure roller body 31 and the surface of the colored aluminum coil.

[0112] The only difference between this embodiment 2 and embodiment 1 is that the reinforced stabilizing rod 37 can rotate within a certain range, and the angle is automatically adjusted as the elastic arm 33 gradually approaches the main shaft 11, and the tightening member 32 is added to improve the stability of the pressure roller body 31 during operation.

[0113] Working principle: The colored aluminum coil is placed on the support platform 61, and the winding trolley 6 drives the support platform 61 to move. When the winding trolley 6 approaches the main shaft 11, the base 62 of the winding trolley 6 can rotate the special-shaped gear ring 21 by pushing and pulling the rack 24, so that when the winding trolley 6 is winding, all the pressure roller assemblies can rotate synchronously in the direction away from the main shaft 11 to avoid it;

[0114] After the coiling is completed, the coiling trolley 6 is pulled out, and the rack 24 is pulled so that all the pressing roller assemblies can be pressed synchronously on the surface of the colored aluminum coil;

[0115] After the colored aluminum coil approaches the main shaft 11, the lifting control hydraulic cylinder 65 pushes the support platform 61 up and down to adjust its position, so that the placed colored aluminum coil is raised to the height of the main shaft 11 and aligned with the main shaft 11, so that the colored aluminum coil can be automatically put on the main shaft 11;

[0116] The spring 344 is adapted to move the roller 33 in a direction of rotation relative to the axis 11 so that the roller 33 is in a position to move relative to the axis 11. The spring 344 is adapted to move the roller 33 in a direction of rotation relative to the axis 11 so that the roller 33 is in a position to move relative to the axis 11. The spring 344 is adapted to move the roller 33 in a direction of rotation relative to the axis 11

Claims

1. An adjustable unwinding device for color aluminum coil processing, characterized in that: The invention comprises an expansion and contraction shaft assembly (1) and a main shaft (11), wherein expandable tiles (12) are evenly arranged around the expansion and contraction shaft assembly (1), and further comprises: The pressure roller assembly is provided with multiple pressure roller assemblies, and the pressure roller assemblies are arranged around the expansion and contraction shaft assembly. (1) The plurality of pressure roller assemblies include at least a first pressure roller assembly with the same main structure. (3), a second pressing roller assembly (4) and a third pressing roller assembly (5), wherein the plurality of pressing roller assemblies are all connected to the opening and closing drive assembly (2), and the opening and closing drive assembly (2) is used to control all the pressing roller assemblies to synchronously approach or move away from the expansion and contraction shaft assembly (1); The first pressing roller assembly (3) comprises a pressing roller body (31) having a length not less than that of the tile (12), and a reinforcing stabilizing rod (37) is provided at one end of the pressing roller body (31) away from the opening and closing drive assembly (2), and the reinforcing stabilizing rod (37) is detachably connected to the expansion and contraction shaft assembly (1); The pressure roller body (31) is rotatably connected to one end of the elastic arm (33), the other end of the elastic arm (33) is rotatably connected to the first input shaft (310), and the first input shaft (310) is rotatably connected to the frame (7); The elastic arm (33) is connected to a fixed arm (36) via a hydraulic spring telescopic rod (34), and one end of the fixed arm (36) is fixedly connected to the first input shaft (310); The hydraulic spring telescopic rod (34) comprises a slidingly matched cylinder (341) and a piston rod (342), wherein the piston rod (342) is connected to the bottom edge of the rear end of the cylinder (341) via a supporting spring (344); The tail end of the cylinder (341) is hinged to the fixed arm (36), and one end of the piston rod (342) extending out of the cylinder (341) is hinged to a sliding seat (311), and the sliding seat (311) is slidably connected to the elastic arm (33); The first pressing roller assembly (3) further includes a limiting rod (35), and the limiting rod (35) is located on one side of the elastic arm (33); A reinforcing stabilizing rod (37) is provided at one end of the elastic arm (33) close to the roller body (31); the reinforcing stabilizing rod (37) is slidably connected to a rotating seat (371); the rotating seat (371) is rotatably connected to the elastic arm (33); and a positioning spring (372) is connected between the rotating seat (371) and the elastic arm (33); One end of the reinforcing stabilizing rod (37) away from the elastic arm (33) is connected to a buckle suction piece (38). An extension shaft (17) is provided at the front end of the main shaft (11), and a magnetic rotating sleeve (14) is provided on the extension shaft (17). The magnetic rotating sleeve (14) is magnetically matched with the buckle (38).

2. The adjustable unwinding device for color aluminum coil processing according to claim 1 is characterized in that: the expansion and contraction shaft assembly (1) further comprises a sleeve (13), the sleeve (13) and the main shaft (11) are slidably matched, and the sliding surface between the tile (12) and the sleeve (13) is an inclined surface, a main shaft (11) is slidably arranged in the sleeve (13), the main shaft (11) is rotatably connected to the frame (7), and a through hole is provided in the axis of the main shaft (11) along the length direction, a hydraulic cylinder (15) is provided at one end of the main shaft (11) away from the sleeve (13), and the output shaft of the hydraulic cylinder (15) passes through the through hole of the axis of the main shaft (11) and is connected to the sleeve (13); A baffle (16) is fixedly provided on the main shaft (11), and the tile (12) is in sliding engagement with the baffle (16); The main shaft (11) is connected to the output shaft of the reducer (11b) via a belt (11a), and the input shaft of the reducer (11b) is connected to the main motor (11d) via a clutch (11c).

3. The adjustable unwinding device for color aluminum coil processing according to claim 2, characterized in that: two rails are provided on one side of the frame (7), and a coiling trolley (6) is provided on the rails; The upper winding trolley (6) includes a base (62), a trolley drive motor (64) is provided on the base (62), the trolley drive motor (64) is connected to a roller (63) through a shaft transmission, and the roller (63) is set on the track. A support platform (61) is provided on the top of the base (62), and a lifting control hydraulic cylinder (65) is connected between the support platform (61) and the base (62).

4. The adjustable unwinding device for color aluminum coil processing according to claim 3, characterized in that: The first input shaft (310) is in transmission connection with the opening and closing drive assembly (2), the opening and closing drive assembly (2) includes a special-shaped ring gear (21), the special-shaped ring gear (21) is rotationally connected to the frame (7), and the special-shaped ring gear (21) is provided with a section of convex teeth and a section of worm gear teeth, wherein the section of convex teeth is meshedly connected with the first driven gear (39), the first driven gear (39) is fixed on the first input shaft (310), and the first input shaft (310) is rotationally connected to the frame (7); The upper section of the worm gear of the special-shaped gear ring (21) is meshed with the worm (22), and the worm (22) is connected to the machine The frame (7) is rotatably connected, and a gear (23) is fixedly provided on the worm (22), the gear (23) is meshedly connected with a rack (24), and the rack (24) is fixedly connected to the base (62).

5. The adjustable unwinding device for color aluminum coil processing according to claim 4, characterized in that: an oil outlet (343) is provided on one side of the front end of the cylinder (341), and the oil outlet (343) is connected to a generator (9) through a speed regulating component (8); The speed regulating assembly (8) includes two groups of conical wheels (82), which are respectively connected to the transmission shaft (86) and the main shaft (11), and each group of conical wheels (82) includes a moving wheel and a fixed wheel arranged in a mirror image, wherein the moving wheel on the transmission shaft (86) is slidably connected to the transmission shaft (86), and the fixed wheel on the transmission shaft (86) is fixedly connected to the transmission shaft (86), and the moving wheel on the main shaft (11) is slidably connected to the main shaft (11), and the fixed wheel on the main shaft (11) is fixedly connected to the main shaft (11), and a V-shaped steel belt (85) is connected between the moving wheel and the fixed wheel on the main shaft (11) and the moving wheel and the fixed wheel on the transmission shaft (86); The moving wheel on the main shaft (11) and the moving wheel on the transmission shaft (86) are each rotatably connected to a swivel frame (83), and the two swivel frames (83) are both connected to a push-pull oil cylinder (84), one end of the push-pull oil cylinder (84) is connected to the frame (7), and the push-pull oil cylinder (84) is connected to the oil outlet (343) through the oil pipe (81); The transmission shaft (86) is connected to a generator (9).

6. The adjustable unwinding device for color aluminum coil processing according to claim 1, characterized in that the pressure roller body (31) is connected to the elastic arm (33) through a tightening member (32), and the tightening member (32) is in an arc shape.

7. The adjustable unwinding device for color aluminum coil processing according to claim 1, characterized in that: the second input shaft (42) of the second pressing roller assembly (4) is meshedly connected to the special-shaped gear ring (21) through a gear pair (41); The third input shaft (52) of the third pressing roller assembly (5) is meshedly connected to the special-shaped ring gear (21) through the transmission assembly (51). The transmission assembly (51) includes a rotating shaft (513). The rotating shaft (513) is respectively connected to the third driven gear (511) and the third input shaft (52) through the first transmission belt (512) and the second transmission belt (514).

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