Continuous production line for cutting and forming pre-coated metal coiled material

Abstract

The utility model is applicable to the technical field of pre-coated metal coiled material processing and forming, and provides a continuous production line for pre-coated metal coiled material cutting and forming, which comprises a coiled material feeding decoiling mechanism, a transfer bridge, a side guide deviation rectifying device, a coiled material cutting mechanism, a conveyor, a plate stacking frame and a plate forming mechanism which are arranged in sequence. The production line can meet the continuous production of direct cutting and forming of the pre-coated metal coiled material, a multifunctional plate forming mechanism integrating multiple functions of stamping, cutting and flanging is developed, the occupied area of the production line and the single-machine equipment investment of the production line are reduced, all procedures are smoothly transferred and joined, and the production efficiency is improved. The secondary packaging cost and the transportation cost of the metal plate are saved, the production continuity and the operation portability are improved, the application waste of the cut plate is reduced, and the product quality and the production efficiency of cutting, processing and forming of the pre-coated metal coiled material are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pre-coated metal coil processing and forming, in particular to a continuous production line for cutting and forming pre-coated metal coils. Background Art

[0002] Due to its variable colors, light weight, easy processing and superior mechanical properties, pre-coated metal coils are increasingly used in fields such as construction, automobiles, and home appliance panels. The color-coated board is used as a building decoration material, based on the production of modular components, and the assembly construction method is adopted, mainly for installation and splicing at the construction site. Therefore, it is necessary to process and form the coiled pre-coated metal coils into formed plates of different sizes and specifications for easy installation and splicing at the site.

[0003] At present, the processing and forming methods of pre-coated metal coils include roll pressing, stamping, cutting, edge pressing, flanging, etc. At present, from the metal coil to the plate forming, the coil needs to be cut into plates of different specifications and sizes, and the cut plates are packaged and transported to different application factories for processing. For example, in the case of roof panels and wall panels, they are formed by roll pressing, and in the case of curtain walls and suspended ceilings, they are formed by stamping, cutting, and flanging. Therefore, there will be problems such as bumping and wearing of the plates during transportation, waste of plate application cutting, and increase in production costs in the intermittent production from metal coils to processing and forming. Therefore, aiming at the problems existing in the processing and forming of pre-coated metal coils for different applications, it is necessary to develop a continuous production line and production method for cutting and forming pre-coated metal coils with low production costs and avoiding transportation wear and plate cutting waste. Summary of the Utility Model

[0004] In order to solve the above problems, the utility model discloses a continuous production line for cutting and forming pre-coated metal coils, including a coil loading and leveling mechanism, a bridge, a side guide and deviation correction device, a coil cutting mechanism, a conveyor, a plate stacking rack, and a plate forming mechanism. The coil loading and leveling mechanism includes a feeding trolley, an uncoiler, and a leveling machine. The coil cutting mechanism includes a servo fixed length device and a hydraulic shearing machine. The plate forming mechanism includes a chain lifting table, a vacuum suction cup feeding device, a stamping, corner cutting, and flanging integrated device, a chain conveyor belt, and a turning rack, wherein:

[0005] 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 a feeding trolley, an uncoiler, a receiving shovel head, a leveling machine, a bridge, a side guide and deviation correction device, a servo fixed length device, a hydraulic shearing machine, a conveyor, a plate stacking rack, a chain lifting table, a vacuum suction cup feeding device, a stamping, corner cutting, and flanging integrated device, a chain conveyor belt, and a turning rack, which are arranged in sequence.

[0006] A bridge and a side guide deviation rectifying device are provided between the coiled material loading and leveling mechanism and the coiled material cutting mechanism. The bridge spans both ends of the buffer pit and includes a hydraulic swing intermediate bridge, bridge transition rollers, and an arc-shaped supporting surface composed of multiple idler rollers. When the leading end of the coiled material runs forward, the intermediate bridge swings up to facilitate material passing. When the leading end of the coiled material is clamped by the bridge transition rollers, the intermediate bridge swings down to form a storage material loop. The buffer pit is provided with loading and unloading photoelectric switches to adjust the storage material loading and unloading, and its storage material running speed is consistent with the production line speed. The side guide deviation rectifying device is provided with vertical rollers on both sides in the width direction of the sheet material, fixed on the sliding seats on both sides, and the sliding seats are manually adjusted to move along the width direction of the sheet on the guide rail to adapt to different sheet widths.

[0007] A support arm is provided between the feeding trolley and the uncoiler. The support arm is a toggle mechanism, and the swing arm is lifted or lowered by a hydraulic cylinder. When uncoiling, the swing arm is lifted to support the cantilever end of the uncoiler. When loading the coil, the trolley carries the coiled material and moves it to the uncoiler for loading, and the swing arm is in a retracted state.

[0008] A receiving shovel head is provided between the uncoiler and the leveling machine. The receiving shovel head rotates and, in cooperation with the straightening machine, feeds the leading end of the coiled material belt into the leveling machine.

[0009] A servo fixed-length device is set before the hydraulic guillotine shear. The conveyor is set after the hydraulic guillotine shear, and the sheet material stacking rack is set after the conveyor. Part of the sheet material stacking rack is set in a pit and includes a discharging rack, a hydraulic lifting rack, and a discharging table. During this process, the metal coiled material is conveyed along the horizontal line of the servo fixed-length device and the hydraulic guillotine shear, and the cut sheet materials are conveyed along the horizontal line of the conveyor and the discharging rack of the sheet material stacking rack.

[0010] The vacuum suction cup feeding device is set with offset suction cups, with four front suction cups and four rear suction cups. The vacuum suction cup feeding device is set on the slide rail between the chain lifting table and the stamping, corner cutting, and flanging integrated device. A transfer material trough is set below the slide rail. Through the reciprocating movement of the slide rail, the four front suction cups are used to first feed the sheet material on the chain lifting table to the transfer material trough, then reciprocate to the front suction cups of the chain lifting table to adsorb new sheet materials, and the rear suction cups adsorb the sheet materials in the transfer material trough to the stamping, corner cutting, and flanging integrated device.

[0011] The stamping, corner cutting, and flanging integrated device includes a hydraulic cylinder, a die holder, and a workbench. Support columns are set at the four corners of the workbench, and a loop is set at the top of the support columns. A hydraulic cylinder is set on the loop, and the hydraulic cylinder is connected with a hydraulic rod passing through the loop. The bottom of the hydraulic rod is connected with a lower die holder. Shearing corners and lifting joints are set at the four corners of the upper die holder. The lower die holder is provided with a lifting drive, and a cavity is set inside it. Stopping rods are set around the cavity. When the upper die holder punches and cuts corners on the sheet material through the hydraulic cylinder, a notch is punched at each of the four corners of the sheet material, and the lower die holder's concave cavity bends and flanges the four sides of the sheet material.

[0012] The advantages of the present utility model are as follows:

[0013] A multi-functional sheet metal forming mechanism integrating stamping, cutting, and flanging functions has been developed, reducing the floor area of the production line and the investment in single equipment of the production line. The entire production line operates coherently, and the transfer and connection between each process are smooth, enabling the continuous production from pre-coated metal coils to processed and formed products, saving the secondary packaging cost and transportation cost of metal sheets, improving the coherence and operation portability of production, reducing the waste of cut sheets, and greatly enhancing the product quality and production efficiency of the pre-coated metal coil cutting and processing. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the production line for the continuous processing and forming of pre-coated metal coils described in the present utility model.

[0015] Figure 2 It is a schematic diagram of the structure of the sheet stacking rack described in the present utility model.

[0016] Figure 3 Schematic diagram of the structure of the sheet metal forming mechanism described in the present utility model.

[0017] Figure 4 It is a schematic diagram of the upper die holder of the integrated stamping, cutting, and flanging equipment.

[0018] Figure 5 It is a schematic diagram of the lower die holder of the integrated stamping, cutting, and flanging equipment.

[0019] Description of the reference numerals: 1. Coil loading and leveling mechanism, 2. Bridge, 3. Side guide and deviation correction device, 4. Coil cutting mechanism, 5. Conveyor, 6. Sheet stacking rack, 7. Sheet metal forming mechanism;

[0020] 101. Feeding trolley, 102. Uncoiler, 103. Receiving shovel head, 104. Leveling machine, 201. Bridge transition roller, 202. Intermediate bridge, 401. Servo fixed length, 402. Hydraulic guillotine shear, 601. Discharge rack, 602. Hydraulic lifting rack, 603. Cylinder, 604. Discharge table, 701. Chain lifting table, 702. Vacuum suction cup feeding equipment, 703. Integrated stamping, cutting, and flanging equipment, 704. Chain conveyor belt, 705. Turning rack.

[0021] 1021. Support arm, 1022. Pressure roller, 1041. Feeding traction roller, 1042. Upper row leveling roller, 6011. Material supporting rack, 6012. Material stop plate, 7021. Front suction cup, 7022. Rear suction cup, 7023. Slide rail, 7024. Transfer chute, 7031. Hydraulic cylinder, 7032. Die holder, 7033. Workbench, 7034. Support column, 7035. Upper die holder, 7036. Lower die holder, 7037. Cavity, 7038. Looper, 7039. Hydraulic rod. Detailed implementation mode

[0022] The following further describes a continuous production line for cutting and forming pre-coated metal coils of the present utility model with reference to the accompanying drawings.

[0023] To implement the continuous production line for processing and forming pre-coated metal coils described in the present utility model, refer to Figures 1 to 5 .

[0024] As Figure 1 shown, the continuous production line for cutting and forming pre-coated metal coils includes a coil loading and leveling mechanism 1, a bridge 2, a side guide and deviation correction device 3, a coil cutting mechanism 4, a conveyor 5, a sheet stacking rack 6, and a sheet forming mechanism 7. The coil loading and leveling mechanism includes a feeding trolley 101, an uncoiler 102, and a leveling machine 104. The coil cutting mechanism includes a servo fixed-length cutter 401 and a hydraulic guillotine shear 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 material turning rack 705.

[0025] Among them, the feeding trolley 101, the uncoiler 102, the leveling machine 104, the conveyor 5, the servo fixed-length cutter 401, the hydraulic guillotine shear 402, the side guide and deviation correction device 3, the chain lifting platform 701, the chain conveyor belt 704, and the material turning rack 705 are all commonly used equipment in existing production and will not be elaborated here.

[0026] It should be noted that in the present utility model, the traditional intermittent pre-coated metal coil cutting and forming production line is changed to a continuous production line for pre-coated metal coil cutting and forming. The continuous production line is set up on the ground and in a pit. Along the working direction of the continuous production line for pre-coated metal coil cutting and forming, the production line for processing and forming the pre-coated metal coil includes a feeding trolley 101, an uncoiler 102, a receiving shovel head 103, a leveling machine 104, a bridge 2, a side guide and deviation correction device 3, a servo fixed length device 401, a hydraulic shearing machine 402, a conveyor 5, a sheet stacking rack 6, a chain lifting table 701, a vacuum suction cup feeding device 702, an integrated punching, corner cutting and flanging device 703, a chain conveyor belt 704, and a turning rack 705 arranged in sequence. Among them, the bridge 2, the feeding trolley 101, and the discharge table 604 of the sheet stacking rack 6 are all arranged on the pit horizontal line to ensure that the cutting and forming operation of the pre-coated metal coil is on the same horizontal line and ensure the flatness of the sheet.

[0027] Furthermore, Figure 1 A support arm 1021 is provided between the feeding trolley 101 and the uncoiler 102. The support arm 1021 is a toggle mechanism, and the swing arm is lifted or lowered by a hydraulic cylinder. The uncoiler 102 strip head pressing device is a pressure roller. When uncoiling, the tension of the uncoiler 102 drum is tightened, the pressure roller 1022 is lowered to press the pre-coated metal coil, and its swing arm is lifted to support the cantilever end of the uncoiler. When loading the coil, the feeding trolley 101 carries the coil and moves it onto the uncoiler 102 for loading, and the swing arm is in a retracted state. Among them, the pressure roller 1022 is rubber-coated, and the pressure roller 1022 is lifted and lowered by an oil cylinder.

[0028] Furthermore, a bridge 2 and a side guide and deviation correction device 3 are provided between the coil loading and leveling mechanism 1 and the coil cutting mechanism 4. The bridge 2 spans both ends of the buffer pit and includes a hydraulic swing intermediate bridge 202, a bridge transition roller 201, and an arc-shaped support surface composed of multiple idler rollers. When the strip head of the coil runs forward, the intermediate bridge 202 swings up to facilitate passing of the material. When the strip head of the coil is clamped by the bridge transition roller 201, the intermediate bridge 202 swings down to form a storage loop. The buffer pit is provided with loading and unloading photoelectric switches to adjust the storage loading and unloading, and its storage running speed is consistent with the production line speed. The side guide and deviation correction device 3 is provided with vertical rollers on both sides in the width direction of the sheet, fixed on the sliding seats on both sides, and the sliding seats are manually adjusted to move along the width direction of the sheet on the guide rail to adapt to different sheet widths. At the same time, the side guide and deviation correction device 3 can also correct and adjust the running direction of the coil to prevent the coil from running off.

[0029] Further, a receiving shovel head 103 is provided between the decoiler 102 and the leveler 104. The receiving shovel head 103 horizontally feeds the head of the coil strip into the feeding traction rollers of the leveler 104 through rotation in cooperation with the straightener. The leveler 104 includes 19 leveling rollers, with 9 upper leveling rollers and 10 lower leveling rollers. The feeding traction rollers are on the feeding side of the leveler. The upper and lower rollers are coated with polyester glue and pneumatically lifted. The lower leveling rollers are installed on fixed supports and their working positions remain unchanged. The upper leveling rollers are installed on a crossbeam and their working positions can be adjusted manually through the pressing-down adjustment device of the upper leveling rollers. The pressing-down device of the upper leveling rollers consists of a motor and a worm and screw mechanism. The working positions of the slider on the feeding and discharging sides are adjusted electrically to change the leveling gap and the feeding and discharging inclination angles between the upper and lower leveling rollers to adapt to flattening different plate thicknesses. The scale shows the upper and lower values of the plate thickness.

[0030] Further, a servo fixed length device 401 is provided before the hydraulic shearing machine 402. The servo fixed length device 401 can feed materials step by step according to the length and width preset in the numerical control system. The hydraulic shearing machine 402 is driven by an eccentric shaft and adopts a mechanical synchronous positioning shaft to ensure the orientation, same speed, and positioning of the lower knife holder, so that the shearing knife makes a rotary motion on the fixed knife holder to shear the plate. The conveyor 5 is arranged behind the hydraulic shearing machine 402. The conveyor 5 uses a conveyor belt for conveying. The conveyor belt is driven by a 4KW motor and is close to the hydraulic shearing machine, and is used to transport the cut plates to the plate stacking rack 6. The plate stacking rack 6 is arranged behind the conveyor 5. Part of the plate stacking rack 6 is arranged in a pit. During this process, the metal coil is conveyed along the horizontal line of the servo fixed length device 401 and the hydraulic shearing machine 402, and the cut plates are conveyed along the horizontal line of the discharge rack 601 of the conveyor 5 and the plate stacking rack 6.

[0031] Further, as Figure 2 shown, the plate stacking rack 6 includes a discharge rack 601, a hydraulic lifting rack 602, and a discharge table 603. The discharge rack 601 is composed of a pneumatic supporting rack and a baffle. The side baffles and the rear baffle are all adjusted mechanically and enclose a material box. The conveyor 5 conveys the sheet material to the supporting rack. After the conveying is in place, the switch sends a signal, and the supporting rack is pulled open by a cylinder. The sheet material falls into the material box surrounded by the baffle in a wind-supported manner for stacking. The stacked sheets are lowered to the discharge table 603 through the hydraulic lifting rack 602 and conveyed out for further processing and forming by the plate forming mechanism 7.

[0032] As Figure 3As shown in the figure, the chain lifting table 701 is arranged behind the discharge table 601 of the sheet stacking rack 6. The sheet is conveyed to the chain lifting table 701. The chain lifting table 701 drives the driven wheel to rotate to adjust the height of the lifting table by the engagement of the chain link and the sprocket tooth, and raises the sheet from the horizontal line of the discharge table 603 to the horizontal line height of the vacuum suction cup feeding device 702. The vacuum suction cup feeding device 702 is provided with misaligned suction cups. The first four suction cups in the front are controlled by the same pneumatic system, and the last four suction cups in the back are controlled by the same pneumatic system. The vacuum suction cup feeding device 702 is arranged on the slide rail 7023 between the chain lifting table 701 and the stamping, corner cutting and flanging integrated device 703. A transfer chute 7024 is arranged below the slide rail 7023. Baffles are arranged around the transfer chute 7024, and upper and lower spring columns are arranged in the chute. When the sheet is placed, the spring columns retract, and when the sheet is adsorbed, the spring columns pop up. By reciprocating on the slide rail 7023, the first four suction cups in the front first feed the sheet on the chain lifting table 701 to the transfer chute 7024, then reciprocate to the front suction cups 7021 of the chain lifting table 701 to adsorb a new sheet, and the rear suction cups 7022 adsorb the sheet in the transfer chute 7024 and convey it to the workbench 7033 of the stamping, corner cutting and flanging integrated device 703.

[0033] Further, the stamping, corner cutting and flanging integrated device 703 includes a hydraulic cylinder 7031, a die holder 7032, and a workbench 7033. Support columns 7034 are arranged at the four corners of the workbench 7033. A loose sleeve 7038 is arranged at the top of the support column 7034. The hydraulic cylinder 7031 is arranged on the loose sleeve 7038. The hydraulic cylinder 7031 is connected with a hydraulic rod 7039 passing through the loose sleeve 7038. The bottom of the hydraulic rod 7039 is connected with an upper die holder 7035. Shearing corners and lifting joints are arranged at the four corners of the upper die holder 7035. The lower die holder 7036 is provided with a lifting drive and a cavity 7037 is arranged inside. Baffle rods are arranged around the cavity 7037. When the upper die holder 7035 punches and cuts the corners of the sheet through the hydraulic cylinder 7031, a notch is punched at each of the four corners of the sheet, and the lower die holder 7036 makes the sheet bend and turn over at the four sides by the concave cavity 7037.

[0034] In order to meet the 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 sizes of formed sheets are required, only the length and width setting parameters of the servo fixed length 401 of the coil cutting mechanism 4 need to be adjusted and the die holder 7032 of the stamping, corner cutting and flanging integrated device 703 of the sheet forming mechanism 7 needs to be replaced, as Figure 4 and Figure 5 shown.

[0035] The above-mentioned production line has continuous operations, which can meet the continuous production of directly cutting and forming pre-coated metal coils, break the intermittent production method of processing and forming pre-coated metal coils, optimize the production process from pre-coated metal coils to processed and formed products, develop a multi-functional sheet forming mechanism integrating stamping, cutting, and flanging functions, and at the same time make the production from pre-coated metal coils to cut and formed products continuous, reduce the floor area of the production line and the investment in single equipment of the production line. The transfer and connection between each process are smooth, saving the secondary packaging cost and transportation cost of metal sheets, improving the continuity and operation portability of production, reducing the waste of application of cut sheets, and greatly improving the product quality and production efficiency of cutting and processing pre-coated metal coils into formed products.

[0036] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be realized that all equivalent replacements and obvious changes made by using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A continuous production line for cutting and forming pre-coated metal coils, characterized by: The continuous production line for cutting and forming pre-coated metal coils includes a coil feeding and leveling mechanism, a bridge, a side guide correction device, a coil cutting mechanism, a conveyor, a plate stacking rack, and a plate 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 sizing and a hydraulic shearing machine. The plate forming mechanism includes a chain lifting platform, a vacuum suction cup feeding device, a stamping, cutting, and flanging integrated device, a chain conveyor belt, and a turning rack, wherein: 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 a feeding trolley, an uncoiler, a material receiving shovel head, a leveling machine, a bridge, a side guide correction device, a servo sizing, a hydraulic shearing machine, a conveyor, a plate stacking rack, a chain lifting platform, a vacuum suction cup feeding equipment, a stamping, cutting and flanging integrated equipment, a chain conveyor belt, and a turning rack. A ferry bridge and a side guide correcting device are provided between the coil material feeding and leveling mechanism and the coil material cutting mechanism. The ferry bridge spans across the two ends of the buffer pit and includes a hydraulic swinging middle bridge, a ferry bridge transition roller, and an arc-shaped supporting surface formed by a plurality of rollers. When the coil material head moves forward, the middle bridge swings up to facilitate material passing. When the coil material head is clamped by the ferry bridge transition roller, the middle bridge swings down to form a material storage loop. The buffer pit is provided with a photoelectric switch for loading and unloading materials to adjust the loading and unloading of the material storage. The material storage operation speed is consistent with the production line speed. The side guide correcting device is provided with vertical rollers on both sides in the width direction of the plate material, which are fixed on the sliding seats on both sides. The sliding seats are moved along the plate width direction on the guide rails by manually adjusting the slide seats to adapt to different plate widths.

2. The continuous production line for cutting and forming pre-coated metal coils according to claim 1, characterized in that: A support arm is provided between the feeding trolley and the uncoiler. The support arm is a toggle mechanism. The hydraulic cylinder pushes the swing arm to lift or drop. When uncoiling, the swing arm is lifted to support the cantilever end of the uncoiler. When rolling, the trolley carries the coil and moves to the uncoiler for rolling, and the swing arm is in a retracted state.

3. The continuous production line for cutting and forming pre-coated metal coils according to claim 1, characterized in that: A material receiving shovel head is arranged between the unwinding machine and the leveling machine. The material receiving shovel head delivers the coiled material strip head into the leveling machine through rotation in cooperation with the straightening machine.

4. The continuous production line for cutting and forming pre-coated metal coils according to claim 1, characterized in that: A servo sizing is arranged before the hydraulic shearing machine, the conveyor is arranged after the hydraulic shearing machine, the plate stacking rack is arranged after the conveyor, and the plate stacking rack is partially arranged in the pit, including a discharge rack, a hydraulic lifting rack and a discharge table. In this process, the metal coil is conveyed along the servo sizing and the horizontal line of the hydraulic shearing machine, and the cut plates are conveyed along the horizontal line of the conveyor and the discharge rack of the plate stacking rack.

5. The continuous production line for cutting and forming pre-coated metal coils according to claim 1, characterized in that: The vacuum suction cup feeding equipment is a staggered suction cup arrangement, with four front suction cups and four rear suction cups. The vacuum suction cup feeding equipment is arranged on a slide rail between the chain lifting platform and the integrated punching, corner cutting and flanging equipment. A transfer trough is arranged under the slide rail. The front four suction cups are used to feed the plate on the chain lifting platform to the transfer trough through the reciprocating motion of the slide rail, and then reciprocate to the front suction cup of the chain lifting platform to absorb the new plate, and the rear suction cup absorbs the plate in the transfer trough to the integrated punching, corner cutting and flanging equipment.

6. The continuous production line for cutting and forming pre-coated metal coils according to claim 1, characterized in that: The integrated equipment for stamping, cutting corners and flanging includes a hydraulic cylinder, a die base and a workbench. Support columns are arranged at the four corners of the workbench. A loop is arranged on the top of the support column. A hydraulic cylinder is arranged on the loop. The hydraulic cylinder is connected to a hydraulic rod passing through the loop. The bottom of the hydraulic rod is connected to an upper die base. Shear angles and lifting joints are arranged at the four corners of the upper die base. The lower die base is provided with a lifting drive, a cavity is arranged inside the cavity, and material blocking rods are arranged around the cavity. When the upper die base stamps and cuts corners of the plate through the hydraulic cylinder, a notch is punched out at each of the four corners of the plate, and the concave cavity of the lower die base causes the plate to bend and flanging around.

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