Non-injury bending equipment for color-coated aluminum coil processing

Abstract

The application discloses a non-injury bending equipment for color-coated aluminum roll processing and relates to the technical field of aluminum material processing. The non-injury bending equipment comprises a machine body, a plurality of fixed limiting rollers movably arranged at the front end of the machine body, and an adjustable bending mechanism arranged at the front end of the vertical section of the machine body and located on one side of the plurality of fixed limiting rollers. The adjustable bending mechanism comprises a bending assembly, the bending assembly comprises a bending sleeve, the outer ring of the bending sleeve is movably connected with the machine body through a bearing at the rear end, an inner bending shaft is movably arranged at the front and rear ends of the bending sleeve through a bearing, and the rear end of the inner bending shaft is fixedly connected with the machine body. The non-injury bending equipment can bend the aluminum roll into different angles and shapes without replacing the mold, thereby reducing the mold cost, improving the processing efficiency, reducing the friction force of the aluminum roll in the processing process, reducing the surface wear of the aluminum roll, reducing the residual stress, improving the ductility of the aluminum roll and reducing the risk of low-temperature cracking.

Description

Technical Field

[0001] The present invention relates to the technical field of aluminum material processing, in particular to a damage-free bending device for processing color-coated aluminum coils. Background Art

[0002] Color-coated aluminum coils are originally flat. When they are actually put into use, they need to be bent into a shape that adapts to the installation surface according to the actual situation so that the aluminum coils can better fit the installation surface. At the same time, by bending the aluminum coils into a specific shape, the bearing capacity of the flat aluminum coils can also be improved.

[0003] The patent document with publication number "CN114570803A" discloses "a bending device for aluminum processing, comprising a base, a lower mold movably connected inside the base, and an upper mold movably connected to the top of the lower mold. Under the pressure of the upper mold, the lower mold moves downward, thereby exerting an extrusion force on the limit plate, causing the reset spring 2 to be compressed. At the same time, when the limit plate moves downward, the bottom protrusion of the limit plate fits with the top groove of the correction block. If the protrusion and the groove do not fit, the groove will correct the protrusion as the upper mold is squeezed, thereby achieving the effect of automatically protecting the internal mold and preventing extrusion deformation when the upper mold is under excessive pressure during the bending process." Although it has the effect of "automatically protecting the internal mold and preventing extrusion deformation", during the processing, when a different bending angle is required, the bending mold of the corresponding angle must be replaced. Therefore, the mold cost during processing is high, and replacing the mold will also reduce the efficiency of the bending process. Summary of the Invention

[0004] The main purpose of the present invention is to provide a damage-free bending device for color-coated aluminum coil processing, which can effectively solve the technical problems raised by the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] The cam is secured to the front of the chassis and is adapted to move the cam forwardly and downwardly from the chassis to the rear of the chassis, the cam being secured to the chassis by a spring which is secured to the chassis's front and rear ends.

[0007] Specifically, by rotating the servo motor at different angles to control the circular motion of the bending lever, the aluminum coil can be bent at different angles without changing the mold, thereby reducing the mold cost and improving the processing efficiency.

[0008] As a further solution of the present invention, a cavity is opened downward from the central axis of the inner bending shaft, both ends of the cavity are closed, and a fixed clamping plate for supporting the aluminum coil is provided in the cavity, both ends of the fixed clamping plate are fixedly connected to the inner bending shaft, a dynamic clamping plate is provided directly above the fixed clamping plate, and a channel for moving the aluminum coil is provided between the fixed clamping plate and the dynamic clamping plate, and several electric telescopic rods are installed on the top of the dynamic clamping plate, and the shell of the electric telescopic rod is fixedly connected to the inner bending shaft, and the piston rod of the electric telescopic rod is fixedly connected to the dynamic clamping plate.

[0009] Specifically, once the electric telescopic rod is started, the dynamic clamping plate is driven down, and the dynamic clamping plate cooperates with the fixed clamping plate to clamp and limit the aluminum coil. During the rotation of the bending stop rod, the fixed clamping plate blocks the aluminum coil, so that the aluminum coil is bent. When the bending stop rod bends the aluminum coil, shaking and displacement of the aluminum coil during the bending process are avoided, thereby improving the processing accuracy.

[0010] As a further solution of the present invention, the adjustable bending mechanism also includes an adjusting component, which is located at the rear end of the cavity. The adjusting component includes an adjusting plate 1, the top surface of the adjusting plate 1 is flush with the bottom surface of the fixed clamping plate, and an adjusting plate 2 is provided at the bottom of the adjusting plate 1. The lengths of the adjusting plate 1 and the adjusting plate 2 are greater than the length of the inner bending shaft. A plurality of tooth grooves are provided through the top of the adjusting plate 1, and the tops of the tooth grooves are meshed and connected with auxiliary gears. The interior of the inner bending shaft is fixedly connected with a servo motor 2, and the output shaft of the servo motor 2 is fixedly connected to the auxiliary gear. The auxiliary gear is movably connected to the inner bending shaft, and an electric extension is fixedly installed on the top of the adjusting plate 1 near the rear end. The retracting rod 2 and the electric telescopic rod 2 are fixedly installed with a top card at the bottom of the piston rod, and the bottom of the top card has the same curvature as the bottom of the adjusting plate 2. A limit groove aligned with the top card is provided through the upper and lower end surfaces of the adjusting plate 2. The internal part of the limit groove is plugged with a limit column, and the top of the limit column is set with a downward slope. The bottom of the limit column is fixedly installed with a spring 1, and the bottom of the spring 1 is fixedly connected to the fuselage. When the spring 1 is naturally extended, the top of the limit column is flush with the top of the adjusting plate 2, and the lower edge height of the inclined surface of the top of the limit column is lower than the bottom surface height of the adjusting plate 2. The interior of the fuselage is provided with a slideway for accommodating the adjusting plate 1, the adjusting plate 2 and the electric telescopic rod 2.

[0011] Specifically, the aluminum coil is first bent around one end of the fixed clamping plate, and then blocked by the adjusting plate 1, forming a smaller arc-shaped bend. The aluminum coil contacts the fixed clamping plate, the adjusting plate 1 and the adjusting plate 2 in turn, and is blocked by the three, forming a larger arc-shaped bend. By controlling the positions of the adjusting plate 1 and the adjusting plate 2, bends of different radians can be formed, and the adjusting plate 1 and the adjusting plate 2 can be reused.

[0012] As a further solution of the present invention, a preheating mechanism is installed on one side of the fixed limit roller, and the preheating mechanism includes a preheating box. The side cross-section of the preheating box is in the shape of a "匚". Electric heating tubes are fixedly installed on the inner wall of the rear end box of the preheating box near the top and bottom, and the electric heating tubes are arranged in an S-shaped loop. The preheating box is fixedly connected to the fuselage by bolts.

[0013] Specifically, reducing residual stress, lowering the yield strength of aluminum, and improving ductility are beneficial to the subsequent bending processing of aluminum, especially under low temperature conditions, reducing the probability of aluminum cracking after being subjected to stress.

[0014] As a further solution of the present invention, the preheating mechanism also includes a plurality of guide plates arranged vertically and parallel to each other, a plurality of guide rods are equidistantly installed through the upper and lower ends of the guide plates, a same roller frame is fixedly installed at one end of the plurality of guide rods, the two roller frames are arranged opposite to each other, a plurality of clamping rollers are movably installed between the front and rear end frames of the roller frames, and the guide plates are fixedly connected to the inner wall of the preheating box.

[0015] Specifically, the aluminum coil is prevented from directly contacting the electric heating tube during the heating process, which may cause local overheating of the aluminum coil, thermal stress cracking, and surface damage of the aluminum coil. The rolling of the clamping roller reduces friction and reduces surface wear during the movement of the aluminum coil.

[0016] As a further solution of the present invention, the preheating mechanism also includes a plurality of springs 2, the number of springs 2 is the same as the number of guide rods, and one end of the spring 2 is fixedly connected to the end of the guide rod away from the roller frame, the spring 2 is located inside the preheating box, and the other end of the spring 2 is fixedly connected to the box body of the preheating box.

[0017] Specifically, the expansion and contraction of the second spring facilitates the preheating mechanism to adaptively clamp and limit aluminum coils of different thicknesses, and the provision of the second spring provides a buffer space to avoid excessive clamping force that may damage the aluminum coil.

[0018] As a further solution of the present invention, a dynamic limit mechanism is installed above several of the fixed limit rollers, and the dynamic limit mechanism includes a slider, a cylinder is installed on the top of the slider, and the cylinder body of the cylinder is fixedly connected to the fuselage, the piston rod of the cylinder is fixedly connected to the slider, the slider passes through the front end of the fuselage and is slidably connected thereto, and several dynamic limit rollers are movably connected to the front end of the slider through bearings, and the dynamic limit rollers are located directly above the fixed limit rollers.

[0019] Specifically, it is convenient to adjust the distance between the fixed limiting roller and the dynamic limiting roller, and convenient to clamp and limit aluminum coils of different thicknesses.

[0020] As a further solution of the present invention, the dynamic limit mechanism also includes a servo motor three, which is located inside the slider, the housing of the servo motor three is fixedly connected to the slider, and the output shaft of the servo motor three is fixedly connected to the power roller, which is located directly above one of the fixed limit rollers.

[0021] Specifically, it is convenient to transport the aluminum coil at a uniform speed during the aluminum coil bending process, thereby avoiding bending errors caused by different conveying speeds.

[0022] As a further solution of the present invention, a lubrication mechanism is installed on the other side of the fixed limit roller, and the lubrication mechanism includes a powder applying component, and the powder applying component includes a powder applying box. A powder conveying pipe is installed inside the powder applying box, and the powder conveying pipe is arranged in an inverted "U" shape. A number of powder nozzles are fixedly installed at the bottom of the top tube body and the top of the bottom tube body of the powder conveying pipe. The rear end of the powder conveying pipe is connected to a transfer valve, and a powder storage tank is clamped at the top of the transfer valve. An air pump is installed at the rear end of the transfer valve, and the powder applying box is fixedly connected to the fuselage by bolts.

[0023] Specifically, the powder can reduce the wear on the surface of the aluminum coil and avoid scratches on the surface of the aluminum coil.

[0024] As a further solution of the present invention, the lubrication mechanism also includes a powder leveling assembly, which is located on one side of the powder box. The powder leveling assembly includes two smear rollers arranged parallel to each other in an upper and lower direction. Both ends of the smear rollers are movably connected to an adapter frame, and the end of the adapter frame is movably connected to a base. A torsion spring is installed between the base and the adapter frame, and the base is fixedly connected to the powder box.

[0025] Specifically, the coating roller rolls on the surface of the aluminum coil to spread the powder attached to the surface of the aluminum coil, so that the powder is evenly distributed on the surface of the aluminum coil, avoiding local accumulation of powder, affecting the lubrication effect, causing uneven friction on the surface of the aluminum coil, and thus affecting the bending effect.

[0026] The beneficial effects of the present invention are:

[0027] The present invention provides a bending assembly and controls the bending lever to move in a circular motion through a servo motor. Different angles can be bent without changing the mold to obtain bent parts of different shapes, thereby reducing mold costs and improving processing efficiency. In addition, during the bending process, the aluminum coil is clamped and limited by the fixed clamping plate and the dynamic clamping plate, thereby preventing the aluminum coil from shaking or shifting during the bending process, reducing bending errors, and improving bending accuracy.

[0028] The present invention provides an adjustment component, and controls the positions of the first and second adjustment plates through the cooperation of the second servo motor with the auxiliary gear and the tooth groove, and the second electric telescopic rod and the top clamp, thereby bending parts with different curvatures. The aluminum coil can be bent into different curvatures without changing the mold, thereby reducing the mold cost and improving the processing efficiency.

[0029] By setting up a preheating mechanism and using electric heating tubes to heat both sides of the aluminum coil, residual stress is reduced, the ductility of the aluminum coil is improved, and the risk of low-temperature cracking is reduced. At the same time, the preheating mechanism adapts to aluminum coils of different thicknesses through clamping rollers and springs, reducing surface wear during the movement of the aluminum coil and avoiding thermal stress cracking and surface damage caused by direct contact of the aluminum coil with the electric heating tube.

[0030] By setting up a lubrication mechanism and using a powder nozzle to spray fine graphite powder, the surface wear of the aluminum coil is reduced, and scratches caused by large friction during the movement of the aluminum coil are avoided. Then, the coating roller and torsion spring in the powder leveling assembly adapt to the different thicknesses of aluminum coils and spread the fine graphite powder to ensure uniform lubrication and avoid local accumulation that affects the bending effect.

[0031] The present invention reduces the stress of the aluminum coil and improves its ductility by providing a preheating mechanism, providing a basis for the adjustable bending mechanism to bend the aluminum coil at multiple angles and shapes without a mold. The lubrication mechanism cooperates with the preheating mechanism to reduce bending damage, and the dynamic limit mechanism adaptively clamps and transports the aluminum coil at a uniform speed, thereby supporting the stability and precision of the entire processing flow. At the same time, the adaptive design of the preheating mechanism and the powder leveling component forms a closed-loop protection to adapt to different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the overall structure of a damage-free bending device for color-coated aluminum coil processing according to the present invention;

[0033] Figure 2 This is a schematic structural diagram of an adjustable bending mechanism in a damage-free bending device for color-coated aluminum coil processing according to the present invention;

[0034] Figure 3 This is a structural front and sectional view of a bending assembly in a damage-free bending device for processing color-coated aluminum coils according to the present invention;

[0035] Figure 4It is the sectional view of inner bending shaft in the non-damage bending equipment for color-coated aluminum roll processing of the application;

[0036] Figure 5 It is the partial structure schematic view of adjustable bending mechanism in the non-damage bending equipment for color-coated aluminum roll processing of the application;

[0037] Figure 6 It is the structure sectional view of in the non-damage bending equipment for color-coated aluminum roll processing of the application Figure 5 ;

[0038] Figure 7 It is the structure schematic view of adjusting assembly in the non-damage bending equipment for color-coated aluminum roll processing of the application;

[0039] Figure 8 It is the sectional split view of adjusting assembly in the non-damage bending equipment for color-coated aluminum roll processing of the application;

[0040] Figure 9 It is the mark view of bending node in the non-damage bending equipment for color-coated aluminum roll processing of the application;

[0041] Figure 10 It is the partial sectional view of machine body in the non-damage bending equipment for color-coated aluminum roll processing of the application;

[0042] Figure 11 It is the partial sectional view of preheating mechanism in the non-damage bending equipment for color-coated aluminum roll processing of the application;

[0043] Figure 12 It is the structure schematic view of preheating box and electric heating pipe in the non-damage bending equipment for color-coated aluminum roll processing of the application;

[0044] Figure 13 It is the partial structure schematic view of preheating mechanism in the non-damage bending equipment for color-coated aluminum roll processing of the application;

[0045] Figure 14 It is the structure schematic view of dynamic limiting mechanism in the non-damage bending equipment for color-coated aluminum roll processing of the application;

[0046] Figure 15 It is the partial structure sectional view of dynamic limiting mechanism in the non-damage bending equipment for color-coated aluminum roll processing of the application;

[0047] Figure 16 It is the structure schematic view of lubricating mechanism in the non-damage bending equipment for color-coated aluminum roll processing of the application;

[0048] Figure 17 It is the sectional view of powdering assembly in the non-damage bending equipment for color-coated aluminum roll processing of the application;

[0049] Figure 18 The present invention is a schematic structural diagram of a powder leveling component in a damage-free bending device for processing color-coated aluminum coils.

[0050] In the picture:

[0051] 1. Machine body; 2. Fixed limit roller;

[0052] 3. Adjustable bending mechanism; 31. Bending assembly; 3101. Bending sleeve; 3102. Sub-gear; 3103. Inner bending shaft; 3104. Bending stop lever; 3105. Main gear; 3106. Servo motor 1; 3107. Cavity; 3108. Fixed clamping plate; 3109. Electric telescopic rod 1; 3110. Dynamic clamping plate;

[0053] 32. Adjustment assembly; 3201. Adjustment plate 1; 3202. Adjustment plate 2; 3203. Tooth groove; 3204. Auxiliary gear; 3205. Servo motor 2; 3206. Electric telescopic rod 2; 3207. Spring 1; 3208. Limiting column; 3209. Limiting slot; 3210. Ejector; 3211. Slideway;

[0054] 4. Preheating mechanism; 4101. Preheating box; 4102. Electric heating tube;

[0055] 4201, guide plate; 4202, guide rod; 4203, spring 2; 4204, roller frame; 4205, clamping roller;

[0056] 5. Dynamic limit mechanism; 501. Slider; 502. Cylinder; 503. Power roller; 504. Dynamic limit roller; 505. Servo motor 3;

[0057] 6. Lubrication mechanism; 61. Powder loading assembly; 6101. Powder loading box; 6102. Powder delivery pipe; 6103. Powder nozzle; 6104. Transfer valve; 6105. Air pump; 6106. Powder storage tank;

[0058] 62. Powder distribution assembly; 6201. Coating roller; 6202. Adapter frame; 6203. Base; 6204. Torsion spring. DETAILED DESCRIPTION

[0059] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0060] like Figures 1-18 As shown, a non-damaging bending equipment for color-coated aluminum coil processing, please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5, including a fuselage 1, a plurality of fixed limit rollers 2 are movably installed in the center of the front end of the fuselage 1, an adjustable bending mechanism 3 is installed at the front end of the vertical section of the fuselage 1 and on one side of the plurality of fixed limit rollers 2, the adjustable bending mechanism 3 includes a bending component 31, the bending component 31 includes a bending sleeve 3101, the outer ring of the bending sleeve 3101 is movably connected to the fuselage 1 through a bearing at the rear end, an inner bending shaft 3103 is movably installed in the center of the front and rear ends of the bending sleeve 3101 through a bearing, and the inner bending The rear end of the shaft 3103 is fixedly connected to the fuselage 1, and a sub-gear 3102 is provided at the end of the bending sleeve 3101 close to the fuselage 1, and a main gear 3105 is engaged with the side of the sub-gear 3102. A servo motor 3106 is fixedly connected to the interior of the fuselage 1, and the main gear 3105 is fixedly connected to the output shaft of the servo motor 3106. A cavity 3107 for the movement of the aluminum coil is provided at the bottom of the inner bending shaft 3103, and a bending stop rod 3104 is installed on the outer ring of the front and rear end cylinders of the bending sleeve 3101.

[0061] Specifically, after the aluminum coil passes through the cavity 3107 inside the inner bending shaft 3103, the servo motor 3106 starts to drive the main gear 3105 to rotate, and cooperates with the sub-gear 3102 to drive the bending sleeve 3101 to rotate synchronously, and then the rotation of the bending sleeve 3101 drives the bending lever 3104 to perform circular motion, and the bending lever 3104 applies pressure to the aluminum coil to be bent. By rotating the servo motor 3106 at different angles, the stroke of the circular motion of the bending lever 3104 is controlled. The aluminum coil can be bent to different angles without changing the mold, which reduces the mold cost and improves the processing efficiency.

[0062] Please refer to Figure 4 、 Figure 5 and Figure 6 The cavity 3107 is opened downward from the central axis of the inner bending shaft 3103, and the two ends of the cavity 3107 are closed. A fixed clamping plate 3108 for supporting the aluminum coil is provided in the cavity 3107, and both ends of the fixed clamping plate 3108 are fixedly connected to the inner bending shaft 3103. A dynamic clamping plate 3110 is provided directly above the fixed clamping plate 3108, and a channel for moving the aluminum coil is provided between the fixed clamping plate 3108 and the dynamic clamping plate 3110. Several electric telescopic rods 3109 are installed on the top of the dynamic clamping plate 3110, and the shell of the electric telescopic rod 3109 is fixedly connected to the inner bending shaft 3103, and the piston rod of the electric telescopic rod 3109 is fixedly connected to the dynamic clamping plate 3110.

[0063] Specifically, the electric telescopic rod 3109 is activated to drive the dynamic clamping plate 3110 to descend, and the dynamic clamping plate 3110 cooperates with the fixed clamping plate 3108 to clamp and limit the aluminum coil. During the rotation process, the bending stop rod 3104 cooperates with the fixed clamping plate 3108 to block the aluminum coil, so that the aluminum coil is bent. When the bending stop rod 3104 bends the aluminum coil, shaking and displacement of the aluminum coil during the bending process are prevented, thereby improving processing accuracy.

[0064] refer to Figure 9 As shown, when the bending baffle 3104 rotates to the position of node A, the bending baffle 3104 contacts the aluminum coil (thick solid line in the example figure), and when the bending baffle 3104 rotates from node A to node B, the aluminum coil is blocked by the fixed clamping plate 3108, and different obtuse angles are formed at the bending part of the aluminum coil. When the bending baffle 3104 rotates to the position of node B, the aluminum coil (thick dashed line in the example figure) forms a 90° angle at the bending part. When the bending baffle 3104 rotates from node B to node C, the aluminum coil is blocked by the fixed clamping plate 3108, and since there is no obstruction at the bottom of the fixed clamping plate 3108, different acute angles are formed at the bending part of the aluminum coil. When the bending baffle 3104 rotates to the position of node C, the aluminum coil (thin dashed line in the example figure) forms a 180° angle at the bending part.

[0065] Please refer to Figure 7 、 Figure 8 and Figure 10The adjustable bending mechanism 3 also includes an adjusting component 32, which is located at the rear end of the cavity 3107. The adjusting component 32 includes an adjusting plate 1 3201. The top surface of the adjusting plate 1 3201 is flush with the bottom surface of the fixed clamping plate 3108. An adjusting plate 2 3202 is provided at the bottom of the adjusting plate 1 3201. The lengths of the adjusting plate 1 3201 and the adjusting plate 2 3202 are greater than the length of the inner bending shaft 3103. A plurality of tooth grooves 3203 are provided on the top of the adjusting plate 1 3201. The top of the tooth groove 3203 is meshed with an auxiliary gear 3204. The interior of the inner bending shaft 3103 is fixedly connected with a servo motor 2 3205, and the output shaft of the servo motor 2 3205 is fixedly connected to the auxiliary gear 3204. The auxiliary gear 3204 is movably connected to the inner bending shaft 3103. An electric telescopic rod 2 3206 is fixedly installed on the top of the adjusting plate 1 3201 near the rear end. A top card 3210 is fixedly installed at the bottom of the piston rod of the telescopic rod 2 3206, and the bottom of the top card 3210 has the same curvature as the bottom of the adjusting plate 2 3202. A limiting groove 3209 is provided through the upper and lower end surfaces of the adjusting plate 2 3202 and is aligned with the top card 3210. A limiting column 3208 is inserted into the inside of the limiting groove 3209. The top of the limiting column 3208 is set with a downward inclined surface. A spring 1 3207 is fixedly installed at the bottom of the limiting column 3208. The bottom of the spring 1 3207 is fixedly connected to the fuselage 1, and when the spring 1 3207 is naturally extended, the top of the limiting column 3208 is flush with the top of the adjusting plate 2 3202, and the lower edge of the inclined surface of the top of the limiting column 3208 is lower than the bottom surface of the adjusting plate 2 3202. A slideway 3211 for accommodating the adjusting plate 1 3201, the adjusting plate 2 3202 and the electric telescopic rod 2 3206 is provided inside the fuselage 1.

[0066] Specifically, after the servo motor 2 3205 is started, it drives the auxiliary gear 3204 to rotate, and cooperates with the tooth groove 3203 to drive the adjustment plate 1 3201 to move. At this time, the limiting column 3208 is located inside the limiting groove 3209 to limit the adjustment plate 2 3202, so as to prevent the adjustment plate 2 3202 from following the movement of the adjustment plate 1 3201 due to friction. When the adjustment plate 1 3201 moves to the bottom of the fixed clamping plate 3108, the bending assembly 31 is operated to bend the aluminum coil. The aluminum coil is first bent around one end of the fixed clamping plate 3108, and then the aluminum coil is blocked by the adjustment plate 1 3201, forming a smaller curved bend, which facilitates bending the aluminum coil into a small arc angle.

[0067] When the electric telescopic rod 2 3206 is started, it drives the top card 3210 to descend, and the limit column 3208 is pushed out of the limit slot 3209 by the top card 3210, thereby releasing the lock of the adjustment plate 2 3202. Then, the servo motor 2 3205 is started again to drive the adjustment plate 1 3201 to move. At this time, the adjustment plate 2 3202, the adjustment plate 1 3201 and the fixed clamping plate 3108 form a semi-cylindrical blocking mold. When the bending assembly 31 is running to bend the aluminum coil, the aluminum coil contacts the fixed clamping plate 3108, the adjustment plate 1 3201 and the adjustment plate 2 3202 in turn, and is blocked by the three to form a large arc-shaped bend, which is convenient for bending the aluminum coil into a large arc angle. By controlling the positions of the adjustment plate 1 3201 and the adjustment plate 2 3202, it is convenient to form bends of different arcs.

[0068] When the servo motor 2 3205 reverses and drives the adjustment plate 1 3201 and the adjustment plate 2 3202 to move into the slide 3211, the electric telescopic rod 2 3206 starts to drive the top card 3210 to reset. During the movement, the rear end of the adjustment plate 2 3202 contacts the inclined surface at the top of the limit column 3208, and the limit column 3208 is pressed down through the adjustment plate 2 3202, and the spring 1 3207 is compressed. When the limit column 3208 is aligned with the limit slot 3209, due to the loss of the obstruction of the top card 3210, the limit column 3208 is reinserted into the limit slot 3209 under the action of the spring 1 3207 to limit the adjustment plate 2 3202, so that the adjustment plate 1 3201 and the adjustment plate 2 3202 can be reused.

[0069] Please refer to Figure 11 and Figure 12 A preheating mechanism 4 is installed on one side of the fixed limit roller 2, and the preheating mechanism 4 includes a preheating box 4101. The side cross-section of the preheating box 4101 is in the shape of a "匚". Electric heating tubes 4102 are fixedly installed on the inner wall of the rear end box of the preheating box 4101 near the top and bottom, and the electric heating tubes 4102 are arranged in an S-shaped loop. The preheating box 4101 is fixedly connected to the fuselage 1 by bolts.

[0070] Specifically, when the aluminum coil passes through the preheating box 4101, the electric heating tube 4102 starts to heat both sides of the aluminum coil at the same time, thereby increasing the temperature of the aluminum coil, reducing residual stress, lowering the yield strength of the aluminum, and improving ductility, which is beneficial for the subsequent bending processing of the aluminum, especially under low temperature conditions, and reducing the probability of cracking of the aluminum after being subjected to stress.

[0071] Please refer to Figure 11 and Figure 13The preheating mechanism 4 also includes a number of guide plates 4201 arranged vertically and parallel to each other, and a number of guide rods 4202 are equidistantly installed at the upper and lower ends of the guide plates 4201. One end of the guide rods 4202 is fixedly installed with the same roller frame 4204. The two roller frames 4204 are arranged opposite to each other, and a number of clamping rollers 4205 are movably installed between the front and rear end frames of the roller frames 4204. The guide plates 4201 are fixedly connected to the inner wall of the preheating box 4101.

[0072] Specifically, when the aluminum coil passes through the preheating box 4101, the aluminum coil is located between the clamping roller 4205 at the upper end and the clamping roller 4205 at the lower end. The clamping roller 4205 clamps, limits and supports the aluminum coil to prevent the aluminum coil from directly contacting the electric heating tube 4102 during the heating process, resulting in excessive local heating of the aluminum coil, thermal stress cracking, and damage to the surface of the aluminum coil. When the aluminum coil moves, the rolling of the clamping roller 4205 reduces friction, thereby reducing surface wear during the movement of the aluminum coil.

[0073] Please refer to Figure 13 The preheating mechanism 4 also includes a plurality of springs 4203. The number of the springs 4203 is the same as the number of the guide rods 4202, and one end of the spring 4203 is fixedly connected to the end of the guide rod 4202 away from the roller frame 4204. The spring 4203 is located inside the preheating box 4101, and the other end of the spring 4203 is fixedly connected to the box body of the preheating box 4101.

[0074] Specifically, when the aluminum coil is mounted between the two clamping rollers 4205, the aluminum coil squeezes open the two closed clamping rollers 4205, and the guide rod 4202 retracts into the interior of the preheating box 4101 through the guidance of the guide plate 4201, and the spring 2 4203 is compressed. Through the expansion and contraction of the spring 2 4203, the preheating mechanism 4 can adaptively clamp and limit the aluminum coils of different thicknesses, and provide a buffer space by setting the spring 2 4203 to avoid excessive clamping force, which may cause damage to the aluminum coil.

[0075] Please refer to Figure 14 A dynamic limit mechanism 5 is installed above several fixed limit rollers 2. The dynamic limit mechanism 5 includes a slider 501. A cylinder 502 is installed on the top of the slider 501, and the cylinder body of the cylinder 502 is fixedly connected to the fuselage 1. The piston rod of the cylinder 502 is fixedly connected to the slider 501. The slider 501 passes through the front end of the fuselage 1 and is slidably connected thereto. Several dynamic limit rollers 504 are movably connected to the front end of the slider 501 through bearings. The dynamic limit roller 504 is located directly above the fixed limit roller 2.

[0076] Specifically, after the aluminum coil is set between the fixed limit roller 2 and the dynamic limit roller 504, the cylinder 502 is started to drive the slider 501 to descend, and then drive the dynamic limit roller 504 to descend, so as to facilitate the adjustment of the distance between the fixed limit roller 2 and the dynamic limit roller 504, and facilitate the clamping and limiting of aluminum coils of different thicknesses.

[0077] Please refer to Figure 15 The dynamic limit mechanism 5 also includes a servo motor 3 505. The servo motor 3 505 is located inside the slider 501. The shell of the servo motor 3 505 is fixedly connected to the slider 501. The output shaft of the servo motor 3 505 is fixedly connected to the power roller 503. The power roller 503 is located directly above one of the fixed limit rollers 2.

[0078] Specifically, after the aluminum coil is clamped between the fixed limit roller 2 and the dynamic limit roller 504, the servo motor 3 505 is started to drive the power roller 503 to rotate, and the rotating power roller 503 drives the aluminum coil to move in the direction of the adjustable bending mechanism 3, so as to facilitate the uniform speed transportation of the aluminum coil during the bending process of the aluminum coil, thereby avoiding bending errors caused by different conveying speeds.

[0079] Please refer to Figure 16 and Figure 17 A lubrication mechanism 6 is installed on the other side of the fixed limit roller 2, and the lubrication mechanism 6 includes a powder loading component 61, and the powder loading component 61 includes a powder loading box 6101. A powder conveying pipe 6102 is installed inside the powder loading box 6101, and the powder conveying pipe 6102 is arranged in an inverted "U" shape. A number of powder nozzles 6103 are fixedly installed at the bottom of the top tube body and the top of the bottom tube body of the powder conveying pipe 6102. The rear end of the powder conveying pipe 6102 is connected to a transfer valve 6104, and a powder storage tank 6106 is clamped through the top of the transfer valve 6104. An air pump 6105 is installed at the rear end of the transfer valve 6104, and the powder loading box 6101 is fixedly connected to the fuselage 1 by bolts.

[0080] Specifically, during the bending process of the aluminum coil, the aluminum coil passes through the upper powder box 6101 and is located between the upper powder nozzle 6103 and the lower powder nozzle 6103. After the powder in the powder storage tank 6106 enters the transfer valve 6104, the air pump 6105 is started to pump the powder into the powder conveying pipe 6102, and then sprayed out through the powder nozzle 6103. The powder adheres to the top and bottom surfaces of the aluminum coil. During the bending process of the aluminum coil, the powder reduces the wear on the surface of the aluminum coil and avoids scratches on the surface of the aluminum coil.

[0081] Please refer to Figure 16 and Figure 18The lubrication mechanism 6 also includes a powder leveling component 62, which is located on one side of the powder box 6101. The powder leveling component 62 includes two smear rollers 6201 arranged parallel to each other in an upper and lower direction. Both ends of the smear rollers 6201 are movably connected to an adapter frame 6202, and the end of the adapter frame 6202 is movably connected to a base 6203. A torsion spring 6204 is installed between the base 6203 and the adapter frame 6202, and the base 6203 is fixedly connected to the powder box 6101.

[0082] Specifically, after the aluminum coil passes through the powder box 6101, the aluminum coil passes between the two coating rollers 6201. By setting the torsion spring 6204, the adapter frame 6202 can be easily rotated around the base 6203, which facilitates the adjustment of the distance between the two coating rollers 6201, and is conducive to the two coating rollers 6201 adaptively clamping aluminum coils of different thicknesses. When the aluminum coil moves toward the direction of the adjustable bending mechanism 3, the coating roller 6201 rolls on the surface of the aluminum coil, which facilitates the spreading of the powder attached to the surface of the aluminum coil, so that the powder is evenly distributed on the surface of the aluminum coil, avoiding local accumulation of powder, affecting the lubrication effect, and making the friction on the surface of the aluminum coil uneven, thereby affecting the bending effect.

[0083] How it works

[0084] When the aluminum coil is bent, it first passes through the preheating mechanism 4, and the electric heating tube 4102 in the preheating mechanism 4 preheats the aluminum coil to reduce residual stress, reduce the yield strength of aluminum, and improve ductility. Then the aluminum coil is mounted on the fixed limit roller 2, and the dynamic limit mechanism 5 clamps the aluminum coil and limits it, and transports the aluminum coil in the direction of the adjustable bending mechanism 3. When the aluminum coil passes through the lubrication mechanism 6, fine graphite powder is sprayed through the powder nozzle 6103 to lubricate the surface of the aluminum coil, and the sprayed fine graphite powder is spread out through the powder leveling component 62 to avoid To prevent local accumulation of powder, which affects the lubrication effect and causes uneven friction on the surface of the aluminum coil, thus affecting the bending effect, when the aluminum coil passes through the powder leveling component 62 and then passes through the inner bending shaft 3103, the electric telescopic rod 3109 is started to drive the dynamic clamping plate 3110 to descend, and cooperate with the fixed clamping plate 3108 to clamp and fix the aluminum coil. After the servo motor 3106 is started, the main gear 3105 cooperates with the sub-gear 3102 to drive the bending sleeve 3101 to rotate, and then drives the bending stop rod 3104 to perform circular motion to bend the aluminum coil.

[0085] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-damaging bending device for color-coated aluminum coil processing, characterized by: The invention comprises a body (1), a plurality of fixed limit rollers (2) are movably installed in the center of the front end of the body (1), an adjustable bending mechanism (3) is installed at the front end of the vertical section of the body (1) and on one side of the plurality of fixed limit rollers (2), the adjustable bending mechanism (3) comprises a bending assembly (31), the bending assembly (31) comprises a bending sleeve (3101), the outer ring of the bending sleeve (3101) is movably connected to the body (1) through a bearing at the rear end, an inner bending shaft (3103) is movably installed in the center of the front and rear ends of the bending sleeve (3101) through a bearing, and the inner bending shaft The rear end of (3103) is fixedly connected to the fuselage (1), and a sub-gear (3102) is provided at the end of the bending sleeve (3101) close to the fuselage (1), and a main gear (3105) is meshed with the side of the sub-gear (3102), a servo motor (3106) is fixedly connected to the interior of the fuselage (1), and the main gear (3105) is fixedly connected to the output shaft of the servo motor (3106), a cavity (3107) for the aluminum coil to move is provided at the bottom of the inner bending shaft (3103), and a bending stop rod (3104) is installed on the outer ring of the front and rear end cylinders penetrating the bending sleeve (3101); The cavity (3107) is opened downwardly through the central axis of the inner bending shaft (3103), and both ends of the cavity (3107) are closed. A fixed clamping plate (3108) for supporting the aluminum coil is provided in the cavity (3107), and both ends of the fixed clamping plate (3108) are fixedly connected to the inner bending shaft (3103). A dynamic clamping plate (3110) is provided directly above the fixed clamping plate (3108), and a channel for the aluminum coil to move is provided between the fixed clamping plate (3108) and the dynamic clamping plate (3110). A plurality of electric telescopic rods (3109) are installed on the top of the dynamic clamping plate (3110), and the shell of the electric telescopic rod (3109) is fixedly connected to the inner bending shaft (3103), and the piston rod of the electric telescopic rod (3109) is fixedly connected to the dynamic clamping plate (3110); The adjustable bending mechanism (3) further includes an adjusting component (32). The adjusting component (32) is located at the rear end of the cavity (3107). The adjusting component (32) includes a first adjusting plate (3201). The top surface of the first adjusting plate (3201) is flush with the bottom surface of the fixed clamping plate (3108). A second adjusting plate (3202) is provided at the bottom of the first adjusting plate (3201). The lengths of the first adjusting plate (3201) and the second adjusting plate (3202) are greater than the length of the inner bending shaft (3103). A plurality of tooth grooves (3203) are provided through the top of the first adjusting plate (3201). An auxiliary gear (3204) is meshed and connected to the top of the tooth groove (3203). A second servo motor (3205) is fixedly connected to the inside of the inner bending shaft (3103), and the output shaft of the second servo motor (3205) is fixedly connected to the auxiliary gear (3204). The auxiliary gear (3204) is movably connected to the inner bending shaft (3103). A second electric telescopic rod (3206) is fixedly installed at the rear end of the top of the first adjusting plate (3201). A top clamp (3210) is fixedly installed at the bottom of the piston rod of the second electric telescopic rod (3206), and the bottom of the top clamp (3210) has the same radian as the bottom of the second adjusting plate (3202). A limiting groove (3209) aligned with the top clamp (3210) is provided through the upper and lower end surfaces of the second adjusting plate (3202). A limiting column (3208) is inserted into the limiting groove (3209). The top of the limiting column (3208) is provided with a downward inclined surface. A first spring (3207) is fixedly installed at the bottom of the limiting column (3208). The bottom of the first spring (3207) is fixedly connected to the fuselage (1). When the first spring (3207) is naturally extended, the top of the limiting column (3208) is flush with the top of the second adjusting plate (3202). The height of the lower edge of the inclined surface at the top of the limiting column (3208) is lower than the bottom surface height of the second adjusting plate (3202). A slideway (3211) for accommodating the first adjusting plate (3201), the second adjusting plate (32) and the second electric telescopic rod (3206) is provided inside the fuselage (1).

2. The non-destructive bending equipment for color-coated aluminum coil processing according to claim 1, characterized in that: A preheating mechanism (4) is installed on one side of the fixed limiting roller (2). The preheating mechanism (4) includes a preheating box (4101). The side view cross-section of the preheating box (4101) is in a "C" shape. Electric heating tubes (4102) are fixedly installed on the inner wall of the rear end box body of the preheating box (4101) near the top and the bottom, and the electric heating tubes (4102) are arranged in an S-shaped cycle. The preheating box (4101) is fixedly connected to the fuselage (1) by bolts.

3. The non-damaging bending equipment for color-coated aluminum coil processing according to claim 2, characterized in that: The preheating mechanism (4) further comprises a plurality of guide plates (4201) arranged vertically and parallel to each other, a plurality of guide rods (4202) being equidistantly installed through the upper and lower ends of the guide plates (4201), a same roller frame (4204) being fixedly installed at one end of the plurality of guide rods (4202), the two roller frames (4204) being arranged relative to each other, a plurality of clamping rollers (4205) being movably installed between the front and rear end frames of the roller frames (4204), and the guide plates (4201) being fixedly connected to the inner wall of the preheating box (4101).

4. The non-destructive bending equipment for color-coated aluminum coil processing according to claim 3 is characterized in that: The preheating mechanism (4) further comprises a plurality of springs (4203), the number of springs (4203) being the same as the number of guide rods (4202), and one end of spring (4203) being fixedly connected to the end of the guide rod (4202) away from the roller frame (4204), spring (4203) being located inside the preheating box (4101), and the other end of spring (4203) being fixedly connected to the box body of the preheating box (4101).

5. The non-damaging bending equipment for color-coated aluminum coil processing according to claim 1 is characterized in that: A dynamic limiting mechanism (5) is installed above the plurality of fixed limiting rollers (2). The dynamic limiting mechanism (5) includes a slider (501). A cylinder (502) is installed at the top of the slider (501). The cylinder body of the cylinder (502) is fixedly connected to the machine body (1). The piston rod of the cylinder (502) is fixedly connected to the slider (501). The slider (501) passes through the front end of the machine body (1) and is slidably connected thereto. A plurality of dynamic limiting rollers (504) are movably connected to the front end of the slider (501) via bearings. The dynamic limiting rollers (504) are located directly above the fixed limiting rollers (2).

6. The non-damaging bending equipment for color-coated aluminum coil processing according to claim 5, characterized in that: The dynamic limit mechanism (5) further comprises a servo motor three (505), the servo motor three (505) being located inside the slider (501), the housing of the servo motor three (505) being fixedly connected to the slider (501), the output shaft of the servo motor three (505) being fixedly connected to the power roller (503), and the power roller (503) being located directly above one of the fixed limit rollers (2).

7. The damage-free bending equipment for color-coated aluminum coil processing according to claim 1, characterized in that: A lubrication mechanism (6) is installed on the other side of the fixed limit roller (2), the lubrication mechanism (6) includes a powder loading assembly (61), the powder loading assembly (61) includes a powder loading box (6101), a powder delivery pipe (6102) is installed inside the powder loading box (6101), the powder delivery pipe (6102) is arranged in an inverted "U" shape, and a plurality of powder nozzles (6103) are fixedly installed at the bottom of the top tube body and the top of the bottom tube body of the powder delivery pipe (6102), the rear end of the powder delivery pipe (6102) is connected to a transfer valve (6104), the top of the transfer valve (6104) is clamped with a powder storage tank (6106), the rear end of the transfer valve (6104) is installed with an air pump (6105), and the powder loading box (6101) is fixedly connected to the machine body (1) by bolts.

8. The non-damaging bending equipment for color-coated aluminum coil processing according to claim 7, characterized in that: The lubricating mechanism (6) further comprises a powder leveling assembly (62), the powder leveling assembly (62) being located on one side of the powder box (6101), the powder leveling assembly (62) comprising two smear rollers (6201) arranged parallel to each other in an upper and lower direction, both ends of the smear rollers (6201) being movably connected to an adapter frame (6202), the end of the adapter frame (6202) being movably connected to a base (6203), a torsion spring (6204) being installed between the base (6203) and the adapter frame (6202), and the base (6203) being fixedly connected to the powder box (6101).

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