A continuous production line and production method for cutting and forming a pre-coated metal coil

Abstract

The application discloses a continuous production line and production method for cutting and forming of pre-coated metal coiled material, which comprises a coiled material feeding and opening flat mechanism, a bridge, a side guide deviation rectifying device, a coiled material cutting mechanism, a conveyor, a plate material stacking rack and a plate material forming mechanism. The production line can satisfy the continuous production of cutting and forming of pre-coated metal coiled material, break the intermittent production method of processing and forming of pre-coated metal coiled material, optimize the production process from pre-coated metal coiled material to processing and forming, develop a multifunctional plate material forming mechanism integrating punching, cutting and flanging, reduce the floor area occupied by the production line and the investment in single machine equipment, realize smooth transfer and connection between various processes, save the secondary packaging cost and transportation cost of metal plates, improve the continuity and operation portability of production, reduce the waste of cut plates, and greatly improve the product quality and production efficiency of cutting and processing of pre-coated metal coiled material.

Description

Technical Field

[0001] This invention belongs to the field of pre-coated metal coil processing and production technology, and more specifically relates to a continuous production technology field for cutting and forming pre-coated metal coils, and in particular to a continuous production line and method for cutting and forming pre-coated metal coils. Background Technology

[0002] Pre-coated metal coils are increasingly used in construction, automotive, and home appliance panel industries due to their diverse colors, lightweight nature, ease of processing, and superior mechanical properties. The construction industry accounts for over 80% of their usage. Color-coated coils are processed into various shapes of finished building products using forming machines, bending machines, and shearing machines. Currently, thin-gauge color-coated sheets are the most widely used, accounting for approximately 80% of the total. Using color-coated sheets as building decoration materials, based on the production of modular components, and employing prefabricated construction methods, with on-site installation and splicing being the primary methods, necessitates processing pre-coated metal coils into pre-formed sheets of different sizes to facilitate on-site installation and splicing.

[0003] Currently, pre-coated metal coils are processed using methods such as roll forming, stamping, cutting, edge pressing, and flanging. However, the current process from coil to sheet material involves cutting the coil into sheets of different sizes, packaging and transporting the cut sheets to various application plants for further processing. For example, roofing and wall panels are roll-formed, while curtain walls and ceilings are formed through stamping, cutting, and flanging. This intermittent production process leads to problems such as material damage during transport, waste during cutting, and increased production costs. Therefore, to address these issues with the processing of pre-coated metal coils for different applications, it is necessary to develop a continuous pre-coated metal coil cutting and forming production line and method that is low-cost and avoids transport wear and tear and material cutting waste. Summary of the Invention

[0004] To address the aforementioned production problems, one objective of this invention is to provide a continuous production line and method for cutting and forming pre-coated metal coils, which can be applied to the processing and forming of continuous pre-coated metal coils.

[0005] This invention discloses a continuous production line for cutting and forming pre-coated metal coils. The continuous production line includes a coil feeding and leveling mechanism, a bridge, a side guide and correction device, a coil cutting mechanism, a conveyor, a sheet stacking rack, and a sheet forming mechanism. The coil feeding and leveling mechanism includes a feeding trolley, an uncoiler, and a leveling machine. The coil cutting mechanism includes a servo-controlled length setting and a hydraulic shear. The sheet forming mechanism includes a chain lifting platform, a vacuum suction cup feeding device, an integrated stamping, corner cutting, and flanging device, a chain conveyor belt, and a turning rack.

[0006] Along the working direction of the continuous production line for cutting and forming pre-coated metal coils, the production line for processing and forming pre-coated metal coils includes, in sequence, a feeding trolley, an uncoiler, a receiving shovel, a leveling machine, a bridge, a side guide correction device, a servo length setting device, a hydraulic shearing machine, a conveyor, a sheet metal stacking rack, a chain lifting platform, a vacuum suction cup feeding device, an integrated stamping, corner cutting and flanging equipment, a chain conveyor belt, and a turning rack.

[0007] A bridge and a side guide correction device are provided between the roll material feeding and leveling mechanism and the roll material cutting mechanism. The bridge spans both ends of the buffer pit and includes a hydraulic swing-type intermediate bridge, a bridge transition roller, and an arc-shaped support surface composed of multiple idler rollers. When the roll material head moves forward, the intermediate bridge swings up to facilitate material feeding. When the roll material head is clamped by the bridge transition roller, the intermediate bridge swings down to form a material storage loop. The buffer pit is equipped with a material loading and unloading photoelectric switch to adjust the material loading and unloading. Its material storage running speed is consistent with the production line speed. The side guide correction device has vertical rollers on both sides of the sheet width direction, which are fixed on the sliding seats on both sides. The sliding seats can be manually adjusted to move along the width direction of the sheet on the guide rail to adapt to different sheet widths.

[0008] A servo-guided length setting is installed before the hydraulic shear, the conveyor is installed after the hydraulic shear, and the sheet metal stacking rack is installed after the conveyor. The sheet metal stacking rack is partially installed in the pit and includes a discharge rack, a hydraulic lifting rack, and a discharge platform. During this process, the metal coil is conveyed along the servo-guided length setting and the horizontal line of the hydraulic shear, and the cut sheet metal is conveyed along the horizontal line of the discharge rack of the conveyor and the sheet metal stacking rack.

[0009] The vacuum suction cup feeding device is a staggered suction cup setup, with four suction cups at the front and four at the rear. The vacuum suction cup feeding device is set on a slide rail between the chain lifting platform and the integrated stamping, corner cutting, and flanging equipment. A transfer trough is set below the slide rail. The four front suction cups use the reciprocating motion of the slide rail to first feed the sheet material on the chain lifting platform to the transfer trough, and then reciprocate back to the chain lifting platform to pick up new sheet material at the front suction cups. The rear suction cups pick up the sheet material in the transfer trough and feed it to the integrated stamping, corner cutting, and flanging equipment.

[0010] The integrated stamping, corner trimming, and flanging equipment includes a hydraulic cylinder, a die base, and a worktable. Support columns are set at the four corners of the worktable, and a loop is set at the top of the support columns. A hydraulic cylinder is set on the loop, and a hydraulic rod passing through the loop is connected to the hydraulic cylinder. The bottom of the hydraulic rod is connected to a lower die base. Shearing angles and lifting joints are set at the four corners of the upper die base. The lower die base is equipped with a lifting drive and has a cavity inside. A stop bar is set around the cavity. When the upper die base punches and trims the corners through the hydraulic cylinder, a notch is punched out at each of the four corners. The concave cavity of the lower die base causes the sheet metal to bend and flanged around the edges.

[0011] A support arm is provided between the feeding trolley and the uncoiler. The support arm is an elbow mechanism, which is pushed by a hydraulic cylinder to raise or lower the swing arm. When uncoiling, the swing arm is raised to support the cantilever end of the uncoiler. When winding, the trolley carries the roll material to the uncoiler for winding, and the swing arm is in a retracted state.

[0012] A receiving shovel is provided between the uncoiler and the leveler. The receiving shovel, in conjunction with the straightening machine, feeds the head of the roll material into the leveler by rotating.

[0013] The continuous production method for cutting and forming pre-coated metal coils, wherein the continuous production method for cutting and forming pre-coated metal coils adopts the continuous production line for processing and forming pre-coated metal coils, and the continuous production method for cutting and forming pre-coated metal coils includes the following steps: (1) In the continuous production of pre-coated metal coil processing and forming, the pre-coated metal coil feeding trolley is placed on the uncoiling drum, the drum tension is tightened, the pressure roller is lowered to press the pre-coated metal coil, the support arm is raised to support the head of the support drum, and at the same time the head of the pre-coated metal coil is passed through the receiving... (1) The material shovel head is fed to the feed traction roller of the leveling machine. After the head is introduced into the leveling machine, the upper row of leveling rollers presses down to level the metal coil; (2) The leveled metal coil is introduced into the bridge transition roller. The middle bridge swings up and conveys the metal coil forward. When the bridge is full of material, the transition roller clamps and the middle bridge swings down to form a storage loop; (3) The metal coil output from the bridge is corrected and its running direction is adjusted by the side guide correction device. Then, the head is introduced into the servo fixed length machine for fixed length feeding according to the preset required feeding length, width, number of times, and cutting time to the hydraulic shear for cutting; (4) The cut plate is conveyed to the same water The flat conveyor conveys the cut boards to the material rack of the board stacking rack. After the boards are in place, the switch sends a signal and the material rack is opened by the cylinder. The boards fall into the material box surrounded by the baffle plate in a wind-lifting manner. The material box is lowered to the discharge platform by the hydraulic lifting rack to discharge the boards. (5) The stacked boards are transported to the chain lifting platform of the board forming mechanism by the conveyor belt of the discharge platform. The chain lifting platform rises and the vacuum suction cup feeding equipment uses the front suction cup to feed the boards on the chain lifting platform to the transfer trough through the reciprocating motion of the slide rail. Then it reciprocates to the chain lifting platform. The front suction cup adsorbs the new boards and the rear suction cup adsorbs the new boards. The suction cups adsorb the sheet metal from the transfer trough onto the lower die base of the integrated stamping, corner cutting, and flanging equipment. The hydraulic cylinder is activated, and the upper die base presses down to stamp and cut the corners. The sheet metal is pressed down into the cavity groove of the lower die base and flanged to obtain a shaped sheet metal. The vacuum suction cup feeding equipment has a baffle at the rear edge. When feeding again, the shaped sheet metal is pushed onto the subsequent inclined chain conveyor belt. Two shaped sheets are placed as a group. The first shaped sheet metal is placed with its flat side down. The second shaped sheet metal is snapped together with the first shaped sheet metal using the flipping rack on the chain conveyor belt. Finally, the chain lifting platform lowers the snapped shaped sheet metal into the packaging box.

[0014] The aforementioned continuous production method for cutting and forming pre-coated metal coils, wherein the pre-coated metal coils can be color-coated aluminum coils or color-coated steel coils, and can be processed into forming plates of different sizes. When different forming plate sizes are required, it is only necessary to adjust the length and width setting parameters of the servo fixed length setting mechanism of the coil cutting mechanism and replace the mold base of the stamping, corner cutting and flanging integrated equipment of the plate forming mechanism.

[0015] The advantages of this invention are:

[0016] The production line of this invention adopts a continuous production method for direct processing of pre-coated metal coils, breaking the intermittent production method of pre-coated metal coil processing and optimizing the production process from pre-coated metal coils to finished products. This improves the continuity of production and ease of operation, reduces waste in the application of cut sheet materials, and greatly enhances the product quality and production efficiency of pre-coated metal coils.

[0017] This invention develops a multi-functional sheet metal forming mechanism that integrates stamping, cutting, and flanging, reducing the floor space required for the production line and the investment in individual production equipment. The entire production line operates continuously, with smooth transfer and connection between various processes, enabling continuous production from pre-coated metal coils to finished products, and saving on secondary packaging and transportation costs for metal sheets. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a continuous production line for processing and forming pre-coated metal coils according to the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the sheet metal stacking rack described in this invention.

[0020] Figure 3 A schematic diagram of the sheet metal forming mechanism of the present invention.

[0021] Figure 4 This is a schematic diagram of the die base on an integrated stamping, corner cutting, and flanging equipment.

[0022] Figure 5 This is a schematic diagram of the lower die base of an integrated stamping, corner cutting, and flanging equipment.

[0023] Explanation of reference numerals in the attached drawings: 1. Roll material feeding and leveling mechanism; 2. Crossbridge; 3. Side guide and correction device; 4. Roll material cutting mechanism; 5. Conveyor; 6. Sheet stacking rack; 7. Sheet forming mechanism.

[0024] 101. Feeding trolley, 102. Uncoiler, 103. Receiving shovel, 104. Leveler, 201. Transition roller, 202. Intermediate bridge, 401. Servo-controlled length setting, 402. Hydraulic shearing machine, 601. Discharge rack, 602. Hydraulic lifting rack, 603. Cylinder, 604. Discharge platform, 701. Chain lifting platform, 702. Vacuum suction cup feeding equipment, 703. Integrated stamping, corner cutting, and flanging equipment, 704. Chain conveyor belt, 705. Turning rack.

[0025] 1021. Support arm, 1022. Pressure roller, 1041. Feed traction roller, 1042. Upper leveling roller, 6011. Material support frame, 6012. Material stop plate, 7021. Front suction cup, 7022. Rear suction cup, 7023. Slide rail, 7024. Transfer trough, 7031. Hydraulic cylinder, 7032. Mold base, 7033. Worktable, 7034. Support column, 7035. Upper mold base, 7036. Lower mold base, 7037. Cavity, 7038. Loop, 7039. Hydraulic rod. Detailed Implementation

[0026] The continuous production line for cutting and forming pre-coated metal coils of the present invention will be further described below with reference to the accompanying drawings.

[0027] To achieve continuous production line manufacturing of the pre-coated metal coil processing and forming described in this invention, see [link to relevant documentation]. Figures 1 to 5 .

[0028] like Figure 1 As shown, the continuous production line for cutting and forming pre-coated metal coils includes a coil feeding and leveling mechanism 1, a bridge 2, a side guide and correction device 3, a coil cutting mechanism 4, a conveyor 5, a sheet stacking rack 6, and a sheet forming mechanism 7. The coil feeding and leveling mechanism includes a feeding trolley 101, an uncoiler 102, and a leveling machine 104. The coil cutting mechanism includes a servo length setting 401 and a hydraulic shearing machine 402. The sheet forming mechanism 7 includes a chain lifting platform 701, a vacuum suction cup feeding device 702, a stamping, corner cutting, and flanging integrated device 703, a chain conveyor belt 704, and a flipping rack 705.

[0029] Among them, the feeding trolley 101, uncoiler 102, leveler 104, conveyor 5, servo length setting 401, hydraulic shear 402, side guide correction device 3, chain lifting platform 701, chain conveyor belt 704, and material turning rack 705 are all commonly used equipment in existing production, and will not be described in detail here.

[0030] It should be noted that, in this invention, the traditional intermittent pre-coated metal coil cutting and forming production line is replaced by a continuous production line and method for pre-coated metal coil cutting and forming. The continuous production line is set up in both above-ground and underground locations. Along the working direction of the continuous production line for pre-coated metal coil cutting and forming, the production line for pre-coated metal coil processing and forming includes, in sequence, a feeding trolley 101, an uncoiler 102, a receiving shovel 103, a leveling machine 104, a bridge 2, a side guide correction device 3, a servo length setting 401, a hydraulic shearing machine 402, a conveyor 5, a sheet metal stacking rack 6, a chain lifting platform 701, a vacuum suction cup feeding device 702, a stamping, corner cutting and flanging integrated device 703, a chain conveyor belt 704, and a turning rack 705. Among them, the ferries 2, the feeding trolley 101, and the discharge platform 604 of the sheet stacking rack 6 are all set on the horizontal line of the pit to ensure that the cutting and forming operation of the pre-coated metal coil is on the same horizontal line and to ensure the flatness of the sheet.

[0031] Furthermore, Figure 1 A support arm 1021 is provided between the feeding trolley 101 and the uncoiler 102. The support arm 1021 is an elbow mechanism, which is driven by a hydraulic cylinder to raise or lower the swing arm. The uncoiler 102 is equipped with a material head pressing device, namely a pressure roller. When uncoiling, the tension of the uncoiler 102 roll is tightened, the pressure roller 1022 is lowered, and the pre-coated metal roll is pressed. Its swing arm is raised to support the cantilever end of the uncoiler. When winding, the feeding trolley 101 carries the roll and moves to the uncoiler 102 for winding. The swing arm is in a retracted state. The pressure roller 1022 is coated with rubber and is raised and lowered by a hydraulic cylinder.

[0032] Furthermore, a bridge 2 and a side guide correction device 3 are provided between the roll material feeding and leveling mechanism 1 and the roll material cutting mechanism 4. The bridge 2 spans both ends of the buffer pit and includes a hydraulic swing-type intermediate bridge 202, a bridge transition roller 201, and an arc-shaped support surface composed of multiple idlers. When the roll material head moves forward, the intermediate bridge 202 swings up to facilitate material feeding. When the roll material head is clamped by the bridge transition roller 201, the intermediate bridge 202 swings down to form a material storage loop. The buffer pit is equipped with a material loading and unloading photoelectric switch to adjust the material loading and unloading. Its material storage running speed is consistent with the production line speed. The side guide correction device 3 is equipped with vertical rollers on both sides of the sheet width direction and fixed on the sliding seats on both sides. By manually adjusting the sliding seats, the roll material moves along the width direction on the guide rail to adapt to different sheet widths. At the same time, the side guide correction device 3 can also correct and adjust the running direction of the roll material to prevent the roll material from deviating.

[0033] Furthermore, a receiving shovel head 103 is provided between the uncoiler 102 and the leveler 104. The receiving shovel head 103, in cooperation with the straightener, horizontally feeds the head of the roll material into the feed traction roller of the leveler 104 by rotating. The leveler 104 includes 19 leveling rollers, 9 in the upper row and 10 in the lower row. The feed traction rollers are located on the feed side of the leveler. The upper and lower rollers are coated with polyester rubber and pneumatically lifted. The lower row of leveling rollers is installed on a fixed support and its working position remains unchanged. The upper row of leveling rollers is installed on a crossbeam and its working position can be manually adjusted by the upper row of leveling roller pressing adjustment device. The upper row of leveling roller pressing device consists of a motor and a worm gear screw mechanism. The leveling gap and feed / discharge inclination angle between the upper and lower leveling rollers are changed by electrically adjusting the working position of the slider on the feed / discharge side to adapt to different plate thicknesses. A scale displays the upper and lower values ​​of the plate thickness.

[0034] Furthermore, a servo fixed length 401 is set before the hydraulic shearing machine 402. The servo fixed length 401 can feed materials step by step according to the length and width preset by the CNC system. The hydraulic shearing machine 402 adopts an eccentric shaft transmission and a mechanical synchronous positioning shaft to ensure the orientation, speed and positioning of the lower blade holder, so that the shearing blade fixed blade holder can rotate to cut the plate. The conveyor 5 is set after the hydraulic shearing machine 402. The conveyor 5 adopts a conveyor belt. The conveyor belt is driven by a 4KW motor and is close to the hydraulic shearing machine. It is used to transport the cut plate to the plate stacking rack 6. The plate stacking rack 6 is set after the conveyor 5. The plate stacking rack 6 is partially set in the pit. In this process, the metal coil is conveyed along the horizontal line of the servo fixed length 401 and the hydraulic shearing machine 402. The cut plate is conveyed along the horizontal line of the discharge rack 601 of the conveyor 5 and the plate stacking rack 6.

[0035] Furthermore, such as Figure 2 As shown, the sheet stacking rack 6 includes a feeding rack 601, a hydraulic lifting rack 602, and a discharge platform 603. The feeding rack 601 is composed of a pneumatic support rack and baffles. The side baffles and the rear baffle are all dynamically adjustable to form a material box. The conveyor 5 transports the sheet material to the support rack. After the material is in place, a switch is activated, and the support rack is opened by a cylinder. The sheet material falls into the material box formed by the baffles and is stacked. The stacked sheet material is lowered to the discharge platform 603 by the hydraulic lifting rack 602 and then transported to the sheet forming mechanism 7 for further processing and shaping.

[0036] like Figure 3As shown, the chain lifting platform 701 is located after the discharge platform 601 of the sheet metal stacking rack 6. The sheet metal is conveyed to the chain lifting platform 701. The chain lifting platform 701 adjusts the height of the lifting platform by rotating the driven wheel through the meshing of the chain links and sprocket teeth, raising the sheet metal from the horizontal line of the discharge platform 603 to the horizontal line of the vacuum suction cup feeding device 702. The vacuum suction cup feeding device 702 is a staggered suction cup arrangement, with the front four suction cups and the rear four suction cups controlled by the same pneumatic control. The vacuum suction cup feeding device 702 is located between the chain lifting platform 701 and the stamping, corner cutting, and flanging integrated device 703. On the slide rail 7023, a transfer trough 7024 is provided below the slide rail 7023. The transfer trough 7024 is surrounded by baffles and has upper and lower spring columns inside. When the sheet is placed, the spring columns retract. When the sheet is adsorbed, the spring columns spring up. By reciprocating the slide rail 7023, the four front suction cups first feed the sheet on the chain lifting platform 701 to the transfer trough 7024. Then, it reciprocates to the front suction cup 7021 of the chain lifting platform 701 to adsorb new sheet. The rear suction cup 7022 adsorbs the sheet in the transfer trough 7024 and transports it to the worktable 7033 of the stamping, corner cutting and flanging integrated equipment 703.

[0037] Furthermore, the integrated stamping, corner trimming, and flanging equipment 703 includes a hydraulic cylinder 7031, a die base 7032, and a worktable 7033. Support columns 7034 are located at the four corners of the worktable 7033. A looper 7038 is located at the top of each support column 7034. A hydraulic cylinder 7031 is mounted on the looper 7038. The hydraulic cylinder 7031 is connected to a hydraulic rod 7039 that passes through the looper 7038. An upper die base 7035 is connected to the bottom of the hydraulic rod 7039. Shearing angles and lifting joints are located at the four corners of the upper die base 7035. A lifting drive is provided for the lower die base 7036, which contains a cavity 7037. Material stoppers are located around the cavity 7037. When the upper die base 7035 is stamped and trimmed by the hydraulic cylinder 7031, a notch is punched at each of the four corners. The recessed cavity 7037 of the lower die base 7036 causes the sheet metal to bend and flanged around its perimeter.

[0038] The following describes a continuous production method for cutting and forming pre-coated metal coils. This method utilizes a continuous production line for processing and forming pre-coated metal coils and includes the following steps:

[0039] (1) During the continuous production of pre-coated metal coils, the pre-coated metal coil feed trolley 101 is placed on the uncoiler 102 drum. The drum tension is tightened, the pressure roller 1022 is lowered to press the pre-coated metal coil, the support arm 1021 is raised to support the head of the drum, and at the same time the lead of the pre-coated metal coil is sent to the feed traction roller of the leveler 104 through the receiving shovel head 103. After the lead is introduced into the leveler 104, the upper row of leveling rollers presses down to level the metal coil; (2) The leveled metal coil is introduced into the bridge transition roller 201, the intermediate bridge 202 is swung up, and the metal coil is conveyed forward. When the bridge 2 stores material When fully loaded, the bridge transition roller 201 clamps, and the intermediate bridge 202 swings down to form a storage loop; (3) After the metal coil output by the bridge 2 is corrected and its running direction is adjusted by the side guide correction device 3, it is led into the servo fixed length 401 for fixed length feeding according to the preset required feeding length, width, number of times, and cutting time to the hydraulic shear 402 for cutting; (4) The cut plate is conveyed to the conveyor 5 on the same horizontal line, and the cut plate is conveyed to the discharge rack 601 of the plate stacking rack 6 by the conveyor 5. After the plate is in place, the switch sends a signal, and the discharge rack 601 is pulled open by the cylinder. The plate falls into the baffle plate in a wind-driven manner to form a baffle plate. The material box is lowered to the discharge platform 603 by the hydraulic lifting rack 602 to discharge the material; (5) The stacked plates are transported to the chain lifting platform 701 of the plate forming mechanism 7 by the conveyor belt of the discharge platform 603. The chain lifting platform 701 rises, and the vacuum suction cup feeding device 702 uses the front suction cup 7021 to feed the plates on the chain lifting platform 701 to the transfer trough 7024 through the reciprocating motion of the slide rail 7023. Then it reciprocates to the chain lifting platform 701. The front suction cup 7021 adsorbs the new plates, and the rear suction cup 7022 adsorbs the plates in the transfer trough 7024 to the stamping, corner cutting and flanging integrated equipment 703. On the lower mold base 7036, the hydraulic cylinder 7031 is activated, and the upper mold base 7035 presses down to punch and cut the corners. The sheet metal is pressed down into the groove of the cavity 7037 of the lower mold base 7036 and the edge is turned over to obtain the shaped sheet metal. The vacuum suction cup feeding device 702 has a baffle at the rear edge. When feeding for the next time, the shaped sheet metal is pushed to the subsequent inclined chain conveyor belt 704. Two shaped sheets are placed as a group. The first shaped sheet metal is placed with its flat side down. The second shaped sheet metal is used to be snapped together with the first shaped sheet metal using the flipping rack 705 on the chain conveyor belt 704. Finally, the chain lifting platform 701 lowers the snapped shaped sheet metal into the packaging box.

[0040] Furthermore, the coil cutting mechanism cuts the pre-coated metal coil to a fixed length and width, and the sheet forming mechanism 7 cuts the pre-coated metal coil at an angle and flips the edges. During this process, the coil feeding and leveling mechanism 1 feeds, unwinds, and levels the coiled pre-coated metal coil, the bridge 2 performs looper buffering on the continuous pre-coated metal coil, the sheet stacking rack 6 stacks and conveys the cut metal sheets, the vacuum suction cup misaligned feeding device 702 transfers and feeds the stacked metal sheets, and the flipping rack 705 performs snap-fit ​​packaging on the formed products after the angle cutting and flipping.

[0041] To meet the needs of continuous production of pre-coated metal coils, the pre-coated metal coils can be color-coated aluminum coils or color-coated steel coils, and can be processed into formed sheets of different sizes. When different formed sheet sizes are required, it is only necessary to adjust the length and width setting parameters of the servo fixed length 401 of the coil cutting mechanism 4 and replace the mold base 7032 of the stamping, corner cutting and flanging integrated equipment 703 of the sheet forming mechanism 7. Figure 4 and Figure 5 As shown.

[0042] The aforementioned production line operates continuously, enabling the direct cutting and forming of pre-coated metal coils. This breaks away from the intermittent production methods of pre-coated metal coil processing and optimizes the production process from pre-coated metal coils to finished products. A multi-functional sheet metal forming mechanism integrating stamping, cutting, and flanging has been developed. This allows for continuous production from pre-coated metal coils to finished products, reducing the production line's footprint and investment in individual equipment. Smooth transfer and connection between processes saves on secondary packaging and transportation costs for metal sheets, improves production continuity and ease of operation, reduces waste in cutting sheet materials, and significantly enhances the quality and production efficiency of pre-coated metal coil-cut products.

[0043] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the invention. Furthermore, it should be understood that after reading the technical description of this invention, those skilled in the art can make various alterations, modifications, and / or variations to the invention, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A continuous production line for cutting and forming pre-coated metal coils, characterized in that: The continuous production line for cutting and forming pre-coated metal coils includes a coil feeding and leveling mechanism, a bridge, a side guide and correction device, a coil cutting mechanism, a conveyor, a sheet stacking rack, and a sheet forming mechanism. The coil feeding and leveling mechanism includes a feeding trolley, an uncoiler, and a leveling machine. The coil cutting mechanism includes a servo-controlled length setting and a hydraulic shear. The sheet forming mechanism includes a chain lifting platform, a vacuum suction cup feeding device, an integrated stamping, corner cutting, and flanging device, a chain conveyor belt, and a turning rack. Along the working direction of the continuous production line for cutting and forming pre-coated metal coils, the production line for processing and forming pre-coated metal coils includes, in sequence, a feeding trolley, an uncoiler, a receiving shovel, a leveling machine, a bridge, a side guide correction device, a servo length setting device, a hydraulic shearing machine, a conveyor, a sheet metal stacking rack, a chain lifting platform, a vacuum suction cup feeding device, an integrated stamping, corner cutting and flanging device, a chain conveyor belt, and a turning rack; A bridge and a side guide correction device are provided between the roll feeding and leveling mechanism and the roll cutting mechanism. The bridge spans both ends of the buffer pit and includes a hydraulic swing-type intermediate bridge, a bridge transition roller, and an arc-shaped support surface composed of multiple rollers. When the roll head moves forward, the intermediate bridge swings up to facilitate material feeding. When the roll head is clamped by the bridge transition roller, the intermediate bridge swings down to form a material storage loop. The buffer pit is equipped with a material loading and unloading photoelectric switch to adjust the material loading and unloading. Its material storage running speed is consistent with the production line speed. The side guide correction device has vertical rollers on both sides of the sheet width direction, which are fixed on the sliding seats on both sides. The sliding seats can be manually adjusted to move along the width direction of the sheet on the guide rail to adapt to different sheet widths. A servo-guided length setting is installed before the hydraulic shear, the conveyor is installed after the hydraulic shear, and the plate stacking rack is installed after the conveyor. The plate stacking rack is partially installed in the pit and includes a discharge rack, a hydraulic lifting rack, and a discharge platform. During this process, the metal coil is conveyed along the servo-guided length setting and the horizontal line of the hydraulic shear, and the cut plate is conveyed along the horizontal line of the discharge rack of the conveyor and the plate stacking rack. The vacuum suction cup feeding device is a staggered suction cup setup, with four suction cups at the front and four suction cups at the rear. The vacuum suction cup feeding device is set on the slide rail between the chain lifting platform and the integrated stamping, corner cutting, and flanging equipment. A transfer trough is set below the slide rail. The four front suction cups use the reciprocating motion of the slide rail to first feed the sheet material on the chain lifting platform to the transfer trough, and then reciprocate back to the front suction cups of the chain lifting platform to pick up new sheet material. The rear suction cups pick up the sheet material in the transfer trough and feed it to the integrated stamping, corner cutting, and flanging equipment. The integrated stamping, corner trimming, and flanging equipment includes a hydraulic cylinder, a die base, and a worktable. Support columns are installed at the four corners of the worktable, and a loop is installed at the top of each support column. A hydraulic cylinder is mounted on the loop, and a hydraulic rod passing through the loop is connected to the hydraulic cylinder. An upper die base is connected to the bottom of the hydraulic rod. Shearing angles and lifting joints are installed at the four corners of the upper die base. A lifting drive is installed on the lower die base, which contains a cavity. Material stop bars are installed around the cavity. When the upper die base is stamped and trimmed by the hydraulic cylinder, a notch is punched at each of the four corners. The concave cavity of the lower die base causes the sheet metal to bend and flanged around its perimeter.

2. The continuous production line for cutting and forming pre-coated metal coils as described in claim 1, characterized in that: A support arm is provided between the feeding trolley and the uncoiler. The support arm is an elbow mechanism, which is pushed by a hydraulic cylinder to raise or lower the swing arm. When uncoiling, the swing arm is raised to support the cantilever end of the uncoiler. When winding, the trolley carries the roll material to the uncoiler for winding, and the swing arm is in a retracted state.

3. The continuous production line for cutting and forming pre-coated metal coils as described in claim 1, characterized in that: A receiving shovel is provided between the uncoiler and the leveler. The receiving shovel, in conjunction with the straightening machine, feeds the head of the roll material into the leveler by rotating.

4. A continuous production method for cutting and forming pre-coated metal coils, characterized in that: The continuous production method for cutting and forming pre-coated metal coils adopts the continuous production line for cutting and forming pre-coated metal coils as described in any one of claims 1 to 3. The continuous production method for cutting and forming pre-coated metal coils includes the following steps: (1) When performing continuous pre-coated metal coil processing and forming, the pre-coated metal coil feeding trolley is placed on the uncoiling drum, the drum tension is tightened, the pressure roller is lowered to press the pre-coated metal coil, the support arm is raised to support the head of the support drum, and at the same time the pre-coated metal coil head is sent to the feeding of the leveling machine through the receiving shovel. (1) The traction roller leads the lead into the leveling machine, and the upper row of leveling rollers presses down to level the metal coil; (2) The leveled metal coil is introduced into the bridge transition roller, the middle bridge swings up, and the metal coil is conveyed forward. When the bridge is full of material, the transition roller clamps, the middle bridge swings down, and a storage loop is formed; (3) The metal coil output from the bridge is corrected and its running direction is adjusted by the side guide correction device, and then it is led into the servo fixed length machine for fixed length feeding according to the preset required feeding length, width, number of times, and cutting time to the hydraulic shear for cutting; (4) The cut plate is conveyed to the conveyor on the same horizontal line. The cut boards are conveyed to the material rack of the board stacking rack by the conveyor. After the conveyor is in place, the switch sends a signal and the material rack is pulled open by the cylinder. The boards fall into the material box surrounded by the baffle plate by the air-lifting method. The material box is lowered to the discharge platform by the hydraulic lifting rack to discharge the materials. (5) The stacked boards are transported to the chain lifting platform of the board forming mechanism by the conveyor belt of the discharge platform. The chain lifting platform rises and the vacuum suction cup feeding equipment uses the front suction cup to feed the boards on the chain lifting platform to the transfer trough through the reciprocating motion of the slide rail. Then it reciprocates to the chain lifting platform. The front suction cup adsorbs the new boards and the rear suction cup adsorbs the new boards. The sheet metal in the transfer trough is transferred to the lower die base of the stamping, corner cutting, and flanging integrated equipment. The hydraulic cylinder is activated, and the upper die base is pressed down to stamp and cut the corners. The sheet metal is pressed down into the cavity groove of the lower die base and flanged to obtain a shaped sheet metal. The vacuum suction cup feeding equipment has a baffle at the rear edge. When feeding for the next time, the shaped sheet metal is pushed to the subsequent inclined chain conveyor belt. Two shaped sheets are placed as a group. The first shaped sheet metal is placed with its flat side down. The second shaped sheet metal is used to use the flipping rack on the chain conveyor belt to snap the shaped sheet metal into place with the first shaped sheet metal. Finally, the chain lifting platform lowers the snapped shaped sheet metal into the packaging box.

5. The continuous production method for cutting and forming pre-coated metal coils as described in claim 4, characterized in that: The pre-coated metal coil can be a color-coated aluminum coil or a color-coated steel coil, which can be processed into shaped sheets of different sizes. When different shaped sheet sizes are required, it is only necessary to adjust the length and width setting parameters of the servo fixed length of the coil cutting mechanism and replace the mold base of the stamping, corner cutting and flanging integrated equipment of the sheet forming mechanism.

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