A control mechanism and control method for uncoiling, sizing and cutting a metal coil

Abstract

The application relates to the technical field of metal coil processing, and discloses a control mechanism and control method for uncoiling, sizing and cutting of a metal coil, which solve the problem of safety hazards in the uncoiling and cutting of the existing metal coil through manual feeding, and the control mechanism comprises an uncoiling feeding mechanism, a leveling assembly, a sizing and cutting assembly and a controller, the controller is fixedly connected to one end of the front face of the leveling assembly; the uncoiling feeding mechanism is composed of a metal coil supporting and feeding assembly, an auxiliary pressing assembly and an automatic feeding assembly, the auxiliary pressing assembly is installed on one side of the metal coil supporting and feeding assembly, and the automatic feeding assembly is installed on the back of the metal coil supporting and feeding assembly; the automatic feeding assembly is composed of a supporting shaft, a rotary driving unit, a supporting frame, a movable sleeve, a cylinder I, a clamping unit and an opening and closing control unit; through the mechanism and the control method, automatic feeding can be realized, and the safety can be effectively improved.

Description

Technical Field

[0001] This invention belongs to the field of metal coil processing technology, specifically a control mechanism and control method for uncoiling and cutting metal coils to a fixed length. Background Technology

[0002] Uncoiling and cutting of metal coils to length is a core pre-processing step in the sheet metal, steel structure, and hardware processing industries. Conventional production lines mainly consist of an uncoiler, a leveler, and a shearing machine arranged in sequence, relying on manual assistance to complete the end-feeding and connection of the coils. Existing equipment has several prominent defects in actual production:

[0003] 1. Metal coils are heavy, and loose, warped, and sagging ends are common. After the coil is reversed and unloaded, workers need to reach out and support the end of the coil at close range to feed it into the feed inlet of the leveling machine. The edges of the coil are sharp, and the high-speed feeding process can easily cut the operators. When feeding thick and heavy coils, there is also a safety hazard of coil rebound and injury to personnel. The entire production line requires dedicated personnel to continuously monitor and assist with feeding, resulting in high labor costs.

[0004] 2. The existing feeding mechanism is fixed and cannot be rotated to adjust the angle of the clamping station. It can only be used with a single specification of roll material and leveling equipment with a fixed spacing. When the width and thickness of the roll material change, or when the installation spacing between the uncoiler and the leveler is slightly adjusted, the plate head is difficult to accurately align with the leveling feed port, resulting in frequent jamming and blockage failures. The equipment has poor versatility and takes a long time to adjust and debug when changing production.

[0005] 3. Conventional clamping mechanisms are mostly spring-driven passive unloading structures. After feeding, the driven roller rebounds slowly, and when the sheet is continuously conveyed, the sheet is prone to rubbing against the clamping roller and carrying material. This makes it impossible to achieve uninterrupted continuous feeding, requiring frequent shutdowns to clean the sheet, which significantly reduces the processing efficiency of the entire cutting production line. Summary of the Invention

[0006] In view of the above situation and to overcome the defects of the prior art, the present invention provides a control mechanism and control method for uncoiling and cutting metal coils to a fixed length, which effectively solves the safety hazards caused by manual feeding in the existing uncoiling and cutting of metal coils.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a control mechanism and control method for uncoiling and cutting metal coils to a fixed length, comprising an uncoiling feeding mechanism, a leveling assembly, a fixed-length cutting assembly, and a controller. The uncoiling feeding mechanism is located at the feeding end of the leveling assembly, the fixed-length cutting assembly is located at the discharge end of the leveling assembly, and the controller is fixedly connected to one end of the front side of the leveling assembly. The uncoiling feeding mechanism consists of a metal coil support feeding assembly, an auxiliary clamping assembly, and an automatic feeding assembly. The auxiliary clamping assembly is installed on one side of the metal coil support feeding assembly, and the automatic feeding assembly is installed on the back side of the metal coil support feeding assembly.

[0008] The automatic feeding assembly consists of a support shaft, a rotary drive unit, a support frame, a movable sleeve, a cylinder, a clamping unit, and an opening and closing control unit. The support shaft is fixedly connected to the back of the metal coil support and feeding assembly. The support frame is connected to the other end of the support shaft via a bearing. The rotary drive unit is connected between the metal coil support and feeding assembly and the support frame. The movable sleeve is connected to one end of the support frame. The cylinder passes through the support frame and is fixedly connected to the support frame. The clamping unit is slidably connected to one end inside the support frame and is fixedly connected to the cylinder. The opening and closing control unit is fixedly connected to one end of the side of the movable sleeve.

[0009] The clamping unit consists of a slider, a servo motor, a drive clamping roller, a limit support block, and a driven clamping roller. The slider is slidably connected to the inside of the support frame and fixedly connected to a cylinder. The servo motor is fixedly connected to one side of the slider. The drive clamping roller is rotatably connected to the other side of the slider and fixedly connected to the output shaft of the servo motor. The limit support block is slidably connected to the other side of the inside of the slider and extends to one end of the slider. The driven clamping roller is rotatably connected to one side of the limit support block.

[0010] Preferably, both the driving clamping roller and the driven clamping roller have thickened rubber sleeves fixedly provided on their arc-shaped outer surfaces.

[0011] Preferably, a rectangular groove is provided on one side of the slider, and two limiting rods are fixedly installed inside the rectangular groove. A limiting support block is slidably sleeved on the limiting rods, and a spring is sleeved on the other end of the limiting rods.

[0012] Preferably, one end of the side of the support frame is provided with a first groove that matches the slider, and the inside of the movable sleeve is provided with a second groove that matches the slider.

[0013] Preferably, two limiting rods are fixedly provided on both sides of one end of the movable sleeve. The limiting rods slide through the support frame, and a spring is sleeved on the limiting rod. The spring is fixedly connected between the movable sleeve and the support frame.

[0014] Preferably, the opening and closing control unit consists of a second cylinder, a connecting arm, and a triangular plate. The second cylinder is fixedly connected to one side of the movable sleeve, and the triangular plate is fixedly connected to one end of the second cylinder through the connecting arm. The acute angle of the triangular plate is aligned with one side of the limiting support block.

[0015] Preferably, the rotary drive unit consists of a U-shaped support frame, a second servo motor, a worm gear, and a worm wheel. The U-shaped support frame is fixedly connected to the metal coil support and feeding assembly. The second servo motor is fixedly connected to one end of the U-shaped support frame. The worm gear is rotatably connected inside the U-shaped support frame and fixedly connected to the output shaft of the second servo motor. The worm wheel is fixedly connected to one side of the support frame and meshes with the worm gear.

[0016] Preferably, a plurality of rollers are rotatably provided at the bottom end of the front side of the metal coil support feeding assembly.

[0017] Preferably, the auxiliary pressing assembly consists of a support one, a support two, a cylinder three, an arc-shaped support frame, and several pressure rollers. Support one and support two are fixedly connected to the metal coil support feeding assembly. Cylinder three is hinged between support one and the arc-shaped support frame. One end of the arc-shaped support frame is hinged to support two. The pressure rollers are rotatably connected to one side inside the arc-shaped support frame.

[0018] Preferably, the control method for the metal coil uncoiling and length-cutting control mechanism includes the following steps:

[0019] S1. Install the metal coil onto the metal coil support and feeding assembly, and use the auxiliary clamping component to clamp and limit the outer surface of the metal coil to prevent the metal coil from becoming loose.

[0020] S2. The metal coil support feeding assembly drives the metal coil to reverse. After the metal coil end separates from the auxiliary clamping component, it automatically swings down under the action of gravity. The idler roller provides auxiliary support for the metal coil at the swing position. The metal coil end continues to move to the other side and is in a vertical state.

[0021] S3. The cylinder drives the clamping unit to move upward, so that the driving clamping roller and the driven clamping roller contact the end of the metal coil. During this process, the servo motor drives the driving clamping roller to rotate, so that the end of the metal coil moves between the driving clamping roller and the driven clamping roller, forming a clamping and limiting effect on the end of the metal coil.

[0022] S4. The rotary drive unit drives the support frame to rotate as a whole, so that the end of the metal coil is aligned with the feed port of the leveling assembly.

[0023] S5. As the cylinder extends, it drives the clamping unit to move into the movable sleeve and pushes the movable sleeve out a certain distance, so that the end of the metal coil is close to the feed port of the leveling assembly. The clamping roller and the driven clamping roller are driven to feed the metal coil into the leveling assembly.

[0024] S6. After feeding is completed, cylinder two in the opening and closing control unit drives the connecting arm and triangular plate to move. The triangular plate pushes the limit support block to move, and the limit support block drives the driven clamping roller to move, so that the driven clamping roller separates from the driving clamping roller, releasing the clamping and limiting effect on the metal coil, thus realizing continuous feeding.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] (1) The entire set of equipment is controlled by a unified controller. The entire process from roll clamping, pressing and limiting, reversing and unloading, plate head clamping, rotation alignment, automatic feeding and unloading is completed automatically, without the need for workers to drag and support the plates at close range; completely avoids the safety risks of plate scratches and roll rebound and damage, reduces the number of personnel on duty on a single production line, and significantly reduces labor production costs.

[0027] (2) Thickened rubber sleeves are added to the outer layer of the driving clamping roller and the driven clamping roller to increase the friction between the contact surface with the metal sheet, prevent slippage during the feeding process, ensure the stability of the conveying length of the sheet, and improve the dimensional accuracy of the fixed length cutting; the flexible rubber contact replaces the rigid metal roller, avoids the generation of indentations and scratches on the surface of the sheet, and is suitable for high surface requirements such as stainless steel and color aluminum sheet, reducing the product scrap rate.

[0028] (3) The automatic feeding component is equipped with a servo motor and a worm gear rotation drive unit, which can drive the support frame to rotate at any angle and accurately align the clamped coil end with the feed port of the leveling assembly; it is not affected by the thickness and width of the coil or the distance between the uncoiling and leveling equipment, and no manual adjustment of the equipment position is required when changing production. It is suitable for processing various specifications of metal coils, greatly shortens the debugging time, and significantly improves the equipment versatility.

[0029] (4) The opening and closing control unit adopts a cylinder two-linkage triangular plate to actively push the limit support block. After the material is fed into place, it can quickly force the separation of the driven clamping roller and the driving clamping roller, and actively release the clamping limit of the plate. Unlike the traditional passive spring rebound structure, the material release response speed is fast and there will be no problem of plate scraping or material retention. The roll material can be continuously and uniformly fed into the leveling and length cutting process without stopping the machine for cleaning, which effectively improves the continuous processing efficiency of the entire production line. Attached Figure Description

[0030] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0031] In the attached diagram:

[0032] Figure 1 This is a schematic diagram of the control mechanism for uncoiling and cutting metal coils to length according to the present invention.

[0033] Figure 2 This is a partial structural schematic diagram of the control mechanism for uncoiling and cutting metal coils according to the present invention.

[0034] Figure 3 This is one of the structural schematic diagrams of the automatic feeding component of the present invention;

[0035] Figure 4 This is the second schematic diagram of the automatic feeding component structure of the present invention;

[0036] Figure 5 This is a partial structural diagram of the automatic feeding component of the present invention;

[0037] Figure 6 This is a schematic diagram of the clamping unit structure of the present invention;

[0038] Figure 7 This is a schematic diagram of the auxiliary clamping component structure of the present invention;

[0039] Figure 8 This is a flowchart of the automatic feeding process of the control mechanism for uncoiling and cutting metal coils of the present invention.

[0040] In the diagram: 1. Uncoiling feeding mechanism; 2. Leveling assembly; 3. Cutting assembly; 4. Controller; 5. Metal coil support and feeding assembly; 6. Auxiliary clamping assembly; 7. Automatic feeding assembly; 8. Support shaft; 9. Rotary drive unit; 10. Support frame; 11. Movable sleeve; 12. Cylinder 1; 13. Clamping unit; 14. Opening and closing control unit; 15. Slider; 16. Servo motor 1; 17. Drive clamping roller; 18. Limit support block; 19. Driven component. 20. Clamping roller; 21. Thickened rubber sleeve; 22. Rectangular groove; 23. Limiting rod one; 24. Spring one; 25. Slide groove one; 26. Slide groove two; 27. Limiting rod two; 28. Spring two; 29. ​​Cylinder two; 30. Connecting arm; 31. Triangular plate; 32. U-shaped support frame; 33. Servo motor two; 34. Worm gear; 35. Worm wheel; 36. Support one; 37. Support two; 38. Cylinder three; 39. Arc-shaped support frame; 40. Pressure roller. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0042] Example 1, by Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8This invention discloses a control mechanism and method for uncoiling and cutting metal coils to a fixed length, comprising an uncoiling feeding mechanism 1, a leveling assembly 2, a fixed-length cutting assembly 3, and a controller 4. The uncoiling feeding mechanism 1 is located at the feeding end of the leveling assembly 2, and the fixed-length cutting assembly 3 is located at the discharge end of the leveling assembly 2. The controller 4 is fixedly connected to one end of the front side of the leveling assembly 2. The uncoiling feeding mechanism 1 consists of a metal coil support and feeding assembly 5, an auxiliary clamping assembly 6, and an automatic feeding assembly 7. The auxiliary clamping assembly 6 is installed on one side of the metal coil support and feeding assembly 5, and the automatic feeding assembly 7 is installed on the back side of the metal coil support and feeding assembly 5. The automatic feeding assembly 7 consists of a support shaft 8, a rotary drive unit 9, a support frame 10, a movable sleeve 11, a cylinder 12, a clamping unit 13, and an opening and closing control unit 14. The support shaft 8 is fixedly connected to the back side of the metal coil support and feeding assembly 5, and the support frame 10 is connected to the other end of the support shaft 8 via a bearing. 9 is connected between the metal coil support feeding assembly 5 and the support frame 10. The movable sleeve 11 is connected to one end of the support frame 10. The cylinder 12 passes through the support frame 10 and is fixedly connected to the support frame 10. The clamping unit 13 is slidably connected to one end inside the support frame 10 and is fixedly connected to the cylinder 12. The opening and closing control unit 14 is fixedly connected to one end of the side of the movable sleeve 11. The clamping unit 13 is composed of a slider 15, a servo motor 16, a drive clamping roller 17, a limit support block 18, and a driven clamping roller 19. The slider 15 is slidably connected to the inside of the support frame 10 and is fixedly connected to the cylinder 12. The servo motor 16 is fixedly connected to one side of the slider 15. The drive clamping roller 17 is rotatably connected to the other side of the slider 15 and is fixedly connected to the output shaft of the servo motor 16. The limit support block 18 is slidably connected to the other side inside the slider 15 and extends to one end of the slider 15. The driven clamping roller 19 is rotatably connected to one side of the limit support block 18.

[0043] The entire machine consists of an uncoiling feeding mechanism 1, a leveling assembly 2, a length-cutting assembly 3, and a controller 4, forming an integrated processing line. The controller 4 coordinates the timing actions of each component. The uncoiling feeding mechanism 1 is divided into three main parts: a metal coil support and feeding assembly 5, an auxiliary clamping assembly 6, and an automatic feeding assembly 7. The automatic feeding assembly 7 uses the support shaft 8 as a rotation reference. The rotary drive unit 9 drives the support frame 10 to rotate and adjust around the support shaft 8. The cylinder 12 is fixed on the support frame 10 and pushes and pulls the clamping unit 13 to slide along the slide groove. The movable sleeve 11 is slidably assembled on the support frame. At the front end of 10, the opening and closing control unit 14 is installed on the side of the movable sleeve 11 to control the material release action of the clamping unit 13; the clamping unit 13 uses the slider 15 as the mounting base, and the servo motor 16 drives the drive clamping roller 17 to rotate and convey the plate. The limit support block 18 is slidably assembled in the slider 15 and carries the driven clamping roller 19. The drive clamping roller 17 and the driven clamping roller 19 cooperate to clamp the end of the metal coil, completing the entire set of pre-processing steps of coil gripping, alignment and feeding. After the plate is leveled by the leveling assembly 2, it is sent into the fixed length cutting assembly 3 to complete the fixed length cutting.

[0044] Example 2, based on Example 1, is... Figures 2 to 6 The drive clamping roller 17 and the driven clamping roller 19 are both fixedly provided with thickened rubber sleeves 20 on their arc-shaped outer surfaces; a rectangular groove 21 is opened on one side of the slider 15, and two limiting rods 22 are fixedly installed inside the rectangular groove 21. The limiting support block 18 is slidably sleeved on the limiting rod 22, and a spring 23 is sleeved on the other end of the limiting rod 22; a sliding groove 24 matching the slider 15 is opened on one end of the side of the support frame 10, and a sliding groove 25 matching the slider 15 is opened inside the movable sleeve 11; limiting rods 26 are fixedly installed on both sides of one end of the movable sleeve 11, and the limiting rods 26 slide through the support frame 10. A spring 27 is sleeved on the limiting rods 26, and the spring 27 is fixedly connected to the movable sleeve 11 and the support frame 10. Between 0; the opening and closing control unit 14 is composed of cylinder 28, connecting arm 29 and triangular plate 30. Cylinder 28 is fixedly connected to one side of movable sleeve 11. Triangular plate 30 is fixedly connected to one end of cylinder 28 through connecting arm 29. The acute angle of triangular plate 30 is aligned with one side of limit support block 18; the rotary drive unit 9 is composed of U-shaped support frame 31, servo motor 2 32, worm 33 and worm wheel 34. U-shaped support frame 31 is fixedly connected to metal coil support feeding assembly 5. Servo motor 2 32 is fixedly connected to one end of U-shaped support frame 31. Worm 33 is rotatably connected to the inside of U-shaped support frame 31 and fixedly connected to the output shaft of servo motor 2 32. Worm wheel 34 is fixedly connected to one side of support frame 10 and meshes with worm 33;

[0045] The outer walls of the driving clamping roller 17 and the driven clamping roller 19 are covered with thickened rubber sleeves 20 to increase friction and protect the plate surface, while also adapting to the clamping of metal plates of different thicknesses. A rectangular groove 21 is opened inside the slider 15, and two limiting rods 22 are inserted through the limiting support block 18. A spring 23 is sleeved on the limiting rod 22. Under normal conditions, the spring 23 pushes the limiting support block 18 forward, so that the driven clamping roller 19 is in contact with the driving clamping roller 17 and keeps it in a clamping state. A sliding groove 24 is opened on the side of the support frame 10, and a sliding groove 25 is opened inside the movable sleeve 11 to provide bidirectional sliding guidance for the slider 15. Limiting rods 2 are inserted on both sides of the movable sleeve 11. 26 and spring 27 are fitted together. When cylinder 12 pushes the movable sleeve 11, spring 27 provides buffering and restoring force. In the opening and closing control unit 14, cylinder 28 drives the triangular plate 30 to move forward through the connecting arm 29. The inclined surface of the triangular plate 30 squeezes the limiting support block 18 to compress spring 23, realizing the active unloading of the driven clamping roller 19. The rotary drive unit 9 fixes the servo motor 32 with the U-shaped support frame 31. The servo motor 32 drives the worm 33 to mesh with the worm wheel 34. The worm wheel 34 is fixed on the side of the support frame 10. The worm wheel and worm gear self-locking structure stabilizes and locks the rotation angle of the support frame 10 to ensure the alignment accuracy of the roll end.

[0046] Example 3, based on Example 1, is... Figure 2 and Figure 7 As shown, a number of rollers 35 are rotatably arranged at the bottom of the front side of the metal coil support feeding assembly 5. The auxiliary pressing component 6 consists of a support 1 36, a support 2 37, a cylinder 3 38, an arc-shaped support frame 39 and a number of pressure rollers 40. The support 1 36 and the support 2 37 are fixedly connected to the metal coil support feeding assembly 5. The cylinder 3 38 is hinged between the support 1 36 and the arc-shaped support frame 39. One end of the arc-shaped support frame 39 is hinged to the support 2 37. The pressure rollers 40 are rotatably connected to one side inside the arc-shaped support frame 39.

[0047] Multiple rollers 35 are arranged at the bottom of the metal coil support feeding assembly 5. When the end of the coil swings down, the rollers 35 support the plate to prevent the plate end from bending and deforming and scratching the ground. In the auxiliary pressing component 6, support 1 36 and support 2 37 are fixed to the metal coil support feeding assembly 5. Cylinder 3 38 hinges support 1 36 to the arc-shaped support frame 39. The arc-shaped support frame 39 swings around support 2 37. Multiple pressure rollers 40 are installed in the frame. After the coil is fed, cylinder 3 38 pushes the arc-shaped support frame 39 up, and the pressure rollers 40 press the outer ring of the coil to prevent it from unwinding, loosening and deviating. The whole mechanism works in conjunction with the aforementioned automatic feeding component 7 to complete the entire process of coil pressing and limiting, end unloading support, automatic clamping, rotation alignment, feeding and active unwinding in sequence. The plate is continuously fed into the leveling assembly 2 and the length cutting assembly 3 to realize fully automatic unwinding and length cutting of the metal coil.

[0048] The control method for the control mechanism of uncoiling and cutting metal coils to a fixed length includes the following steps:

[0049] S1. Install the metal coil onto the metal coil support and feeding assembly 5, and use the auxiliary clamping component 6 to clamp and limit the outer surface of the metal coil to prevent the metal coil from becoming loose.

[0050] S2. The metal coil support feeding assembly 5 drives the metal coil to reverse. After the metal coil end separates from the auxiliary clamping component 6, it automatically swings down under the action of gravity. The roller 35 provides auxiliary support for the metal coil at the swing position. The metal coil end continues to move to the other side and is in a vertical state.

[0051] S3. Cylinder 12 drives clamping unit 13 to move upward, so that the driving clamping roller 17 and the driven clamping roller 19 contact the end of the metal coil. During this process, servo motor 16 drives the driving clamping roller 17 to rotate, so that the end of the metal coil moves between the driving clamping roller 17 and the driven clamping roller 19, forming a clamping and limiting effect on the end of the metal coil.

[0052] S4. The rotary drive unit 9 drives the support frame 10 to rotate as a whole, so that the end of the metal coil is aligned with the feed port of the leveling assembly 2.

[0053] S5. The cylinder 12 extends, driving the clamping unit 13 to move into the movable sleeve 11 and pushing the movable sleeve 11 out a certain distance, so that the end of the metal coil is close to the feed port of the leveling assembly 2, driving the clamping roller 17 and the driven clamping roller 19 to feed the metal coil into the leveling assembly 2.

[0054] S6. After feeding is completed, cylinder 28 in the opening and closing control unit 14 drives the connecting arm 29 and the triangular plate 30 to move. The triangular plate 30 pushes the limiting support block 18 to move. The limiting support block 18 drives the driven clamping roller 19 to move, so that the driven clamping roller 19 is separated from the driving clamping roller 17, and the clamping and limiting effect on the metal coil is released, so that continuous feeding can be realized.

[0055] This invention features unified control via a controller, automating the entire process from coil clamping, pressing and limiting, reversing and unloading, plate head clamping, rotational alignment, automatic feeding, and unloading. This eliminates the need for workers to drag or support the sheets at close range, completely avoiding the safety risks of sheet scratches and coil rebound damage. It also reduces the number of personnel on each production line, significantly lowering labor costs. Thickened rubber sleeves are added to the outer layer of the drive and driven clamping rollers to increase friction with the metal sheet, preventing slippage during feeding, ensuring stable sheet conveying length, and improving the accuracy of cut dimensions. Flexible rubber contact replaces rigid metal rollers, preventing indentations and scratches on the sheet surface, making it suitable for high-surface-requirement coils such as stainless steel and aluminum sheets, reducing product scrap rates. The automatic feeding component is equipped with a servo motor and a worm gear. The rotary drive unit can rotate the entire support frame at any angle, precisely aligning the clamped coil end with the feed port of the leveling assembly. It is unaffected by the thickness and width of the coil or the distance between the uncoiling and leveling equipment. No manual adjustment of the equipment position is required during production changeovers. It is suitable for processing various specifications of metal coils, significantly reducing debugging time and greatly improving the equipment's versatility. The opening and closing control unit uses a cylinder-driven triangular plate to actively push and limit the support block. After the material is fed into place, it can quickly and forcibly separate the driven clamping roller and the driving clamping roller, actively releasing the plate clamping limit. Unlike the traditional passive spring structure, the material release response is fast, and there will be no plate scraping or material retention issues. The coil can be continuously and uniformly fed into the leveling and length cutting processes without stopping the machine for cleaning, effectively improving the continuous processing efficiency of the entire production line.

Claims

1. A control mechanism for uncoiling and cutting metal coils to a fixed length, comprising an uncoiling feeding mechanism (1), a leveling assembly (2), a fixed-length cutting assembly (3), and a controller (4), characterized in that: The uncoiling feeding mechanism (1) is located at the feeding end of the leveling assembly (2), the length cutting assembly (3) is located at the discharge end of the leveling assembly (2), and the controller (4) is fixedly connected to one end of the front of the leveling assembly (2). The uncoiling feeding mechanism (1) consists of a metal coil support feeding assembly (5), an auxiliary pressing assembly (6), and an automatic feeding assembly (7). The auxiliary pressing assembly (6) is installed on one side of the metal coil support feeding assembly (5), and the automatic feeding assembly (7) is installed on the back of the metal coil support feeding assembly (5). The automatic feeding assembly (7) consists of a support shaft (8), a rotary drive unit (9), a support frame (10), a movable sleeve (11), a cylinder (12), a clamping unit (13), and an opening and closing control unit (14). The support shaft (8) is fixedly connected to the back of the metal coil support feeding assembly (5). The support frame (10) is connected to the other end of the support shaft (8) through a bearing. The rotary drive unit (9) is connected between the metal coil support feeding assembly (5) and the support frame (10). The movable sleeve (11) is connected to one end of the support frame (10). The cylinder (12) passes through the support frame (10) and is fixedly connected to the support frame (10). The clamping unit (13) is slidably connected to one end inside the support frame (10) and is fixedly connected to the cylinder (12). The opening and closing control unit (14) is fixedly connected to one end of the side of the movable sleeve (11). The clamping unit (13) consists of a slider (15), a servo motor (16), a drive clamping roller (17), a limit support block (18), and a driven clamping roller (19). The slider (15) is slidably connected to the inside of the support frame (10) and fixedly connected to the cylinder (12). The servo motor (16) is fixedly connected to one side of the slider (15). The drive clamping roller (17) is rotatably connected to the other side of the slider (15) and fixedly connected to the output shaft of the servo motor (16). The limit support block (18) is slidably connected to the other side inside the slider (15) and extends to one end of the slider (15). The driven clamping roller (19) is rotatably connected to one side of the limit support block (18).

2. The control mechanism for uncoiling and cutting metal coils to a fixed length according to claim 1, characterized in that: Both the driving clamping roller (17) and the driven clamping roller (19) have thickened rubber sleeves (20) fixedly installed on their arc-shaped outer surfaces.

3. The control mechanism for uncoiling and cutting metal coils to a fixed length according to claim 1, characterized in that: A rectangular groove (21) is provided on one side of the slider (15). Two limiting rods (22) are fixedly installed inside the rectangular groove (21). The limiting support block (18) is slidably sleeved on the limiting rod (22). A spring (23) is sleeved on the other end of the limiting rod (22).

4. The control mechanism for uncoiling and cutting metal coils to a fixed length according to claim 1, characterized in that: The support frame (10) has a groove 1 (24) on one side that matches the slider (15), and the movable sleeve (11) has a groove 2 (25) inside that matches the slider (15).

5. The control mechanism for uncoiling and cutting metal coils to a fixed length according to claim 1, characterized in that: Limiting rods (26) are fixedly installed on both sides of one end of the movable sleeve (11). The limiting rods (26) slide through the support frame (10). Springs (27) are sleeved on the limiting rods (26). Springs (27) are fixedly connected between the movable sleeve (11) and the support frame (10).

6. The control mechanism for uncoiling and cutting metal coils to a fixed length according to claim 1, characterized in that: The opening and closing control unit (14) consists of cylinder two (28), connecting arm (29) and triangular plate (30). Cylinder two (28) is fixedly connected to one side of the movable sleeve (11). Triangular plate (30) is fixedly connected to one end of cylinder two (28) through connecting arm (29). The acute angle of triangular plate (30) is aligned with one side of the limiting support block (18).

7. The control mechanism for uncoiling and cutting metal coils to a fixed length according to claim 1, characterized in that: The rotary drive unit (9) consists of a U-shaped support frame (31), a second servo motor (32), a worm (33) and a worm wheel (34). The U-shaped support frame (31) is fixedly connected to the metal coil support feeding assembly (5). The second servo motor (32) is fixedly connected to one end of the U-shaped support frame (31). The worm (33) is rotatably connected to the inside of the U-shaped support frame (31) and fixedly connected to the output shaft of the second servo motor (32). The worm wheel (34) is fixedly connected to one side of the support frame (10) and meshes with the worm (33).

8. The control mechanism for uncoiling and cutting metal coils to a fixed length according to claim 1, characterized in that: The bottom of the front side of the metal coil support feeding assembly (5) is provided with several rollers (35).

9. The control mechanism for uncoiling and cutting metal coils to a fixed length according to claim 1, characterized in that: The auxiliary pressing assembly (6) consists of a support one (36), a support two (37), a cylinder three (38), an arc-shaped support frame (39), and several pressure rollers (40). Support one (36) and support two (37) are fixedly connected to the metal coil support feeding assembly (5). Cylinder three (38) is hinged between support one (36) and the arc-shaped support frame (39). One end of the arc-shaped support frame (39) is hinged to support two (37). The pressure rollers (40) are rotatably connected to one side inside the arc-shaped support frame (39).

10. A control mechanism for uncoiling and cutting metal coils to length according to any one of claims 1-9, characterized in that: The control method for the metal coil unwinding and length-cutting control mechanism includes the following steps: S1. Install the metal coil onto the metal coil support feeding assembly (5), and use the auxiliary clamping assembly (6) to clamp and limit the outer surface of the metal coil to prevent the metal coil from loosening. S2, the metal coil support feeding assembly (5) drives the metal coil to reverse. After the metal coil end separates from the auxiliary pressing assembly (6), it automatically swings down under the action of gravity. The roller (35) provides auxiliary support for the metal coil at the swing position. The metal coil end continues to move to the other side and is in a vertical state. S3. Cylinder 1 (12) drives the clamping unit (13) to move upward, so that the driving clamping roller (17) and the driven clamping roller (19) come into contact with the end of the metal coil. During this process, servo motor 1 (16) drives the driving clamping roller (17) to rotate, so that the end of the metal coil moves between the driving clamping roller (17) and the driven clamping roller (19), forming a clamping and limiting effect on the end of the metal coil. S4. The rotary drive unit (9) drives the support frame (10) to rotate as a whole, so that the end of the metal coil is aligned with the feed port of the leveling assembly (2); S5. Cylinder 1 (12) extends, driving the clamping unit (13) to move into the movable sleeve (11) and pushing the movable sleeve (11) out a certain distance, so that the end of the metal coil is close to the feed port of the leveling assembly (2), driving the clamping roller (17) and the driven clamping roller (19) to feed the metal coil into the leveling assembly (2); S6. After feeding is completed, the cylinder 2 (28) in the opening and closing control unit (14) drives the connecting arm (29) and the triangular plate (30) to move. The triangular plate (30) pushes the limit support block (18) to move. The limit support block (18) drives the driven clamping roller (19) to move, so that the driven clamping roller (19) is separated from the driving clamping roller (17), and the clamping and limiting effect on the metal coil is released, so that continuous feeding can be realized.

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