Double-station coil straightening and length-cutting machine

Abstract

The present application relates to the technical field of coil processing equipment, and discloses a double-station coil straightening and length-cutting machine, which comprises an equipment rack, a mounting block arranged on the top of the equipment rack, a moving assembly and a straightening assembly arranged on the top of the rack, and a cutting assembly and a fixing assembly arranged in the mounting block. The moving assembly moves the supporting platform through the traction of a first driving motor. During operation, the first clamping plate on the supporting platform clamps the coil to complete length traction; after traction, the fixing assemblies at both ends clamp the coil synchronously, and the cutting assembly cuts off the coil from bottom to top; then the first clamping plate is loosened, the supporting platform retreats to the starting point, and when retreating, the multiple rotating straightening discs are pressed and roll on the surface of the fixed coil in the reverse direction, thereby completing staggered rolling and straightening. The present application solves the problems of low output of single-station, rebound after cutting and cutting jump caused by traditional single straightening, supports flexible feeding and discharging of any end, and improves the flatness of the cut end.

Description

Technical Field

[0001] This invention relates to the field of coil processing equipment technology, specifically a dual-station coil straightening and length cutting machine. Background Technology

[0002] Current coil processing equipment operates in a single-station mode, with each machine containing only one independent processing channel, limiting the pipe output rate during production. The feed and discharge directions of existing equipment are fixed, which is constrained by space when arranging them in the production workshop, making it impossible to flexibly adjust the feed and discharge directions according to the site environment, thus limiting the adaptability of equipment placement.

[0003] In the coil straightening process, existing equipment typically provides linear straightening or planar compression operations in a single direction, without subjecting the coil to multi-point staggered rolling stress. A single straightening structure cannot offset the internal residual stress generated when the coil is coiled, causing the coil to spring back and bend after being cut, resulting in the pipe body not maintaining a straight and flat shape.

[0004] In the coil cutting process, existing equipment lacks a pre-rigidly locked independent clamping structure, and the timing logic of feeding and cutting actions overlaps or lacks stable fixed steps. When the coil is subjected to the lateral cutting reaction force from bottom to top by the saw teeth, it experiences radial runout, resulting in burrs and tilting deformation at the cut edge, reducing the flatness and dimensional consistency of the cut surface of the independent pipe section. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a dual-station coil straightening and length-cutting machine, which solves the problems of low output rate of single-station processing equipment, fixed feeding and discharging directions leading to limited workshop layout, single-direction straightening failing to offset residual stress inside the coil causing springback bending after cutting, and lack of independent pre-rigid locking structure in the cutting process causing the coil to jump under cutting force, resulting in an uneven cut surface.

[0006] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a dual-station coil straightening and length cutting machine, including a machine frame, with mounting blocks provided at the four corners of the top of the machine frame, and the mounting blocks having inlet and outlet holes; The top left and right sides of the equipment frame are provided with moving components. The top of the moving components is connected to a straightening component. The central axis of the straightening component is at the same horizontal line as the inlet and outlet holes. The loading block is provided with a cutting component. The loading block is provided with a fixing component on the side away from the cutting component. The straightening assembly includes a support platform, a protective shell is installed on the top of the support platform, a set of second hydraulic push rods symmetrically distributed on the top of the support platform and the bottom inside the protective shell, a set of second hydraulic push rods symmetrically distributed on the left and right sides inside the protective shell, an mounting plate is installed on the drive end of the second hydraulic push rod, and multiple rotating straightening discs are rotatably connected to the side of the mounting plate away from the second hydraulic push rods, and a second arc-shaped groove is opened on the outer circumference of the rotating straightening discs; The multiple rotating straightening discs on the mounting plate connected to the top of the support platform via a set of second hydraulic push rods are staggered with the multiple rotating straightening discs on the mounting plate connected to the bottom inside the protective shell via a set of second hydraulic push rods. The multiple rotating straightening discs on the mounting plate connected to the left side inside the protective shell via a set of second hydraulic push rods are staggered with the multiple rotating straightening discs on the mounting plate connected to the right side inside the protective shell via a set of second hydraulic push rods.

[0007] Preferably, the moving component includes two limiting guide rails mounted on the top of the equipment frame, and the limiting guide rails are slidably connected to limiting sliders distributed front and rear, the limiting sliders being disposed on both sides of the bottom of the support platform.

[0008] Preferably, a lead screw is provided on the top of the equipment frame, and the lead screw is connected to a first drive motor.

[0009] Preferably, the first drive motor is a through-type motor, which is sleeved through the outside of the lead screw and installed at the bottom of the support platform.

[0010] Preferably, a pair of first hydraulic push rods are symmetrically distributed on both the left and right sides inside the protective shell. Each of the pair of first hydraulic push rods is located on both sides of a corresponding set of second hydraulic push rods. A first clamping plate is installed on the driving end of the first hydraulic push rod. A first arc-shaped groove is opened on the side of the first clamping plate away from the first hydraulic push rod.

[0011] Preferably, the cutting assembly includes a third hydraulic push rod mounted on the top of the equipment frame, an auxiliary fixing plate mounted on the drive end of the third hydraulic push rod, and a second drive motor mounted on one side of the auxiliary fixing plate.

[0012] Preferably, the second drive motor has a cutting saw tooth installed at its drive end, and the mounting block has an installation groove inside, with the cutting saw tooth positioned inside the installation groove and moving up and down along the groove.

[0013] Preferably, two guide rods are fixedly connected inside the mounting groove, and guide grooves are provided on both the left and right sides of the auxiliary fixing plate, with the guide rods slidably connected to the guide grooves.

[0014] Preferably, the fixing component includes a fourth hydraulic push rod disposed on the top of the mounting block, a second clamping plate is mounted on the driving end of the fourth hydraulic push rod, and a third arc-shaped groove is formed on the side of the second clamping plate away from the fourth hydraulic push rod.

[0015] Preferably, the mounting block is further provided with a telescopic limiting groove, and the second clamping plate is disposed in the telescopic limiting groove and moves up and down. The telescopic limiting groove is connected to the inlet and outlet holes.

[0016] This invention provides a dual-station coil straightening and length-cutting machine. It has the following advantages: 1. This invention constructs a bidirectional symmetrical coil processing architecture by symmetrically installing mounting blocks on the front and rear sides of the equipment frame. Combined with a bidirectional traction mechanism, the equipment supports an operation mode of feeding and discharging from any end. The mounting platforms on the left and right sides can simultaneously or alternately receive the coils to be processed, realizing independent traction and cutting of two coils. This expands the number of coil processing channels of a single unit, improves the pipe output rate per unit time, and enhances the spatial adaptability of the equipment in the production workshop layout.

[0017] 2. This invention uses multiple sets of second hydraulic push rods to push the mounting plate and rotating straightening discs to press the outer wall of the coil. The multiple rotating straightening discs are staggered in the vertical and horizontal directions, creating a multi-point interlaced rolling force surface around the coil. When the coil passes through the straightening area longitudinally, it undergoes continuous reverse plastic deformation, which offsets the internal residual stress generated in the coiled state, ensuring that the coil does not spring back after being cut, and maintaining the straight and flat shape of the pipe body.

[0018] 3. This invention uses a first drive motor to rotate and feed the lead screw, which drives the support platform and the first clamping plate to pull the coil to a set value of longitudinal displacement, thereby achieving the purpose of feeding the coil to a fixed length. Furthermore, the working sequence logic of the clamping action being placed before the cutting feed is set. After the coil stops displacing, the fourth hydraulic push rod drives the second clamping plate to complete the pre-rigid locking of the coil. Subsequently, the third hydraulic push rod lifts the cutting saw teeth to complete the bottom-up cutting operation, preventing the coil from radially jumping when subjected to lateral cutting reaction force, and improving the flatness and dimensional consistency of the cut surface of the independent pipe section. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the positional distribution of the equipment frame and lead screw guide rail of the present invention; Figure 3 This is a schematic diagram of the cooperation structure between the straightening component and the moving component of the present invention; Figure 4This is a schematic diagram of the internal structure of the straightening component of the present invention; Figure 5 This is a schematic diagram showing the positional relationship between the mounting block and the cutting assembly fixing assembly of the present invention; Figure 6 This is a schematic diagram of the internal cross-sectional structure of the mounting block of the present invention; Figure 7 This is a schematic diagram of the fixed component structure of the present invention; Figure 8 This is a schematic diagram of the cutting component structure of the present invention.

[0020] The components include: 1. Equipment frame; 2. Support legs; 3. Mounting block; 4. Inlet / outlet holes; 5. Straightening assembly; 51. Support platform; 52. Protective shell; 53. First hydraulic push rod; 54. First clamping plate; 55. First arc groove; 56. Second hydraulic push rod; 57. Mounting plate; 58. Rotary straightening disc; 59. Second arc groove; 6. Moving assembly; 61. Limiting guide rail; 62. Limiting slider; 63. First drive motor; 64. Lead screw; 7. Cutting assembly; 71. Third hydraulic push rod; 72. Auxiliary fixing plate; 73. Second drive motor; 74. Cutting saw teeth; 75. Guide rod; 76. Guide groove; 77. Mounting groove; 8. Fixing assembly; 81. Fourth hydraulic push rod; 82. Second clamping plate; 83. Third arc groove; 84. Telescopic limiting groove. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] See attached document Figure 1 Appendix Figure 2 and attached Figure 5 A dual-station coil straightening and length cutting machine includes a machine frame 1, with multiple support feet 2 at the four corners of the bottom of the machine frame 1, and mounting blocks 3 at the four corners of the top of the machine frame 1. The mounting blocks 3 have inlet and outlet holes 4 on their outer sides.

[0023] Specifically, the equipment frame 1 serves as the main load-bearing foundation, while the support legs 2 bear the entire weight of the equipment frame 1 and provide horizontal adjustment. The symmetrical workstation layout on the front and rear sides of the equipment frame 1 allows one equipment frame 1 to simultaneously and alternately process two coils. Two mounting blocks 3 with inlet and outlet holes 4 located on the same horizontal line form a group, constituting an independent processing channel. One of the mounting blocks 3 in a group has an inlet / outlet hole 4 as the feeding end, while the other has an inlet / outlet hole 4 as the discharging end. Since the traction mechanism (first drive motor 63 and lead screw 64) supports bidirectional operation, the equipment can flexibly switch between the feeding end and the discharging end in a group of mounting blocks 3 according to the on-site workshop environment, supporting the operation mode of feeding and discharging at any end, thereby breaking the constraint of fixed feeding and discharging directions and enhancing the adaptability of the equipment layout. The inlet / outlet hole 4 sets the horizontal position for the coil to enter the interior of the mounting block 3, and the coil passes through the inlet / outlet hole 4 to enter the working area for subsequent processing operations.

[0024] See attached document Figure 1 and attached Figure 5 The equipment frame 1 has a moving component 6 on both the front and rear sides of the top. The moving component 6 has a straightening component 5 on the top. The center of the straightening component 5 is flush with the inlet and outlet holes 4. The mounting block 3 has a cutting component 7 inside. The mounting block 3 has a fixing component 8 on the side away from the cutting component 7 inside.

[0025] Specifically, the moving component 6 carries the straightening component 5 and moves it horizontally on the top of the equipment frame 1. During the movement, the straightening component 5 completes the bending stress relief operation of the coil. The center position of the straightening component 5 is aligned with the inlet and outlet holes 4 to ensure that the coil passes through the same horizontal straight line without secondary bending. The fixing component 8 is responsible for locking the position of the coil before the cutting action occurs. After the fixing component 8 locks the coil, the cutting component 7 performs the lifting and cutting action, completing the entire process flow.

[0026] See attached document Figure 3 and attached Figure 4 The straightening component 5 includes a support platform 51 set on top of the moving component 6. A protective shell 52 is installed on the top of the support platform 51. A set of second hydraulic push rods 56 are symmetrically distributed on the top of the support platform 51 and the bottom inside the protective shell 52. A set of second hydraulic push rods 56 are symmetrically distributed on the left and right sides inside the protective shell 52. An installation plate 57 is installed on the driving end of the second hydraulic push rods 56. A rotating straightening disc 58 is rotatably connected to the front end of the installation plate 57. A second arc-shaped groove 59 is opened on the outer side of the rotating straightening disc 58.

[0027] Specifically, a set of second hydraulic push rods 56 symmetrically distributed is provided on the top of the support platform 51 and the bottom inside the protective shell 52. A set of second hydraulic push rods 56 symmetrically distributed is provided on the left and right sides inside the protective shell 52. The second hydraulic push rods 56 drive the mounting plate 57 and the rotating straightening disk 58 to move towards the central axis of the straightening assembly 5. The second arc-shaped groove 59 fits against the outer wall of the coil. The multiple rotating straightening disks 58 on the mounting plate 57, which are connected to the top of the support platform 51 through a set of second hydraulic push rods 56, are connected to the bottom inside the protective shell 52 through a set of second hydraulic push rods 56. Multiple rotating straightening discs 58 on the mounting plate 57 connected by push rod 56 are arranged in a staggered manner. The multiple rotating straightening discs 58 on the mounting plate 57 connected to the left side of the protective shell 52 by a set of second hydraulic push rods 56 are also staggered with the multiple rotating straightening discs 58 on the mounting plate 57 connected to the right side of the protective shell 52 by a set of second hydraulic push rods 56. When the coil passes through the straightening component 5, it is subjected to intersecting centripetal extrusion forces from multiple directions. As the coil continues to advance, it undergoes repeated bending and release, eliminating the residual tension inside the coil and obtaining a straight pipe state.

[0028] See attached document Figure 2 and attached Figure 3 The moving component 6 includes two limiting guide rails 61 installed on the top of the equipment frame 1. Limiting sliders 62 distributed in front and behind are slidably connected to the outer side of the limiting guide rails 61. The limiting sliders 62 are set at the bottom of the support platform 51.

[0029] Specifically, the limiting guide rail 61 and the limiting slider 62 form a sliding guide fit structure. The support platform 51 is constrained by the limiting guide rail 61. The support platform 51 can only move longitudinally in a straight line along the length of the equipment frame 1. The limiting guide rail 61 cancels the lateral vibration and lateral torque generated by the straightening component 5 when processing the coil, ensuring that the route of the support platform 51 pulling the coil is always aligned with the center of the inlet and outlet holes 4.

[0030] See attached document Figure 2 A lead screw 64 is installed on the top of the equipment frame 1, and the lead screw 64 is connected to the first drive motor 63.

[0031] Specifically, the lead screw 64 is supported in the space above the equipment frame 1. The lead screw 64 acts as a static track for linear transmission. When the first drive motor 63 is powered on, it undergoes linear displacement along the thread on the surface of the lead screw 64. The displacement distance of the first drive motor 63 depends on the number of pulse signals received by the first drive motor 63, thus forming a transmission distance control feedback mechanism.

[0032] See attached document Figure 2 and attached Figure 3 The first drive motor 63 is a through-type motor. The first drive motor 63 is sleeved through the outside of the lead screw 64 and is installed at the bottom of the support platform 51.

[0033] Specifically, the rotor of the first drive motor 63 has a central hole with an internal thread. The internal thread of the rotor of the first drive motor 63 meshes with the external thread of the lead screw 64. When the rotor of the first drive motor 63 rotates, the first drive motor 63 and the support platform 51 move forward or backward on the lead screw 64. By controlling the number of rotations of the first drive motor 63, the length value of the traction coil of the support platform 51 can be set to achieve the fixed length traction target.

[0034] See attached document Figure 3 and attached Figure 4 Inside the protective shell 52, there are a pair of first hydraulic push rods 53 symmetrically distributed on both the left and right sides. Each of the pair of first hydraulic push rods 53 is located on both sides of a corresponding set of second hydraulic push rods 56. A first clamping plate 54 is installed on the driving end of the first hydraulic push rod 53. A first arc-shaped groove 55 is opened on the side of the first clamping plate 54 away from the first hydraulic push rod 53.

[0035] Specifically, when the support platform 51 needs to pull the coil forward, the first hydraulic push rod 53 extends and pushes the first clamping plate 54. The two first clamping plates 54 move towards each other, and the first arc-shaped groove 55 clamps the coil inside the protective shell 52. Then, the support platform 51 moves away from the material roll and pulls the coil to release it from the material roll. The first clamping plate 54 acts as a traction clamping component here to prevent the coil from slipping and falling off when under traction force.

[0036] See attached document Figure 1 and attached Figure 8 The cutting assembly 7 includes a third hydraulic push rod 71 mounted on the top of the equipment frame 1. An auxiliary fixing plate 72 is mounted on the drive end of the third hydraulic push rod 71, and a second drive motor 73 is mounted on the outside of the auxiliary fixing plate 72.

[0037] Specifically, the third hydraulic push rod 71 is arranged below the auxiliary fixing plate 72 and can extend and retract in the vertical direction. The auxiliary fixing plate 72 integrates the vertical lifting force of the third hydraulic push rod 71 with the weight of the second drive motor 73. When the second drive motor 73 is energized, it generates a rotational driving force. The power source is cut off and divided into a vertical propulsion module and a rotary cutting module. The auxiliary fixing plate 72 ensures that the vertical propulsion module and the rotary cutting module do not interfere with each other.

[0038] See attached document Figure 6 and attached Figure 8 The second drive motor 73 has a cutting saw tooth 74 installed on its drive end. The mounting block 3 has an installation groove 77 inside, and the cutting saw tooth 74 is set inside the installation groove 77 and moves up and down along the installation groove 77.

[0039] Specifically, the output shaft of the second drive motor 73 drives the cutting saw teeth 74 to rotate. In the standby state, the cutting saw teeth 74 stay at the lower end inside the mounting groove 77 to prevent obstructing the feeding of the coil. After the coil is pulled into place, the third hydraulic push rod 71 lifts upward, and the cutting saw teeth 74 move from bottom to top inside the mounting groove 77 and cut into the bottom of the coil, cutting the coil laterally.

[0040] See attached document Figure 6 and attached Figure 8 The internal fixed connection of the mounting block 3 is a guide rod 75. The top left and right sides of the auxiliary fixing plate 72 are provided with guide grooves 76. The guide rod 75 is set in the guide groove 76 and slides along the guide groove 76.

[0041] Specifically, the outer wall of the guide rod 75 fits against the inner wall of the guide groove 76. During the stroke of the auxiliary fixing plate 72 being pushed upward by the third hydraulic push rod 71, the guide rod 75 restricts the degree of freedom of the auxiliary fixing plate 72 to swing in the horizontal direction. The guide rod 75 bears the lateral cutting reaction force generated when the cutting saw teeth 74 cuts the coil, ensuring that the lifting trajectory of the cutting saw teeth 74 is a vertical straight line, and the end face of the coil after cutting remains flat.

[0042] See attached document Figure 5 and attached Figure 7 The fixing component 8 includes a fourth hydraulic push rod 81 disposed on the top of the mounting block 3. A second clamping plate 82 is installed on the driving end of the fourth hydraulic push rod 81. The second clamping plate 82 can extend into the inlet / outlet hole 4. A third arc-shaped groove 83 is provided on the side of the second clamping plate 82 away from the fourth hydraulic push rod 81.

[0043] Specifically, before the cutting component 7 is activated, the fourth hydraulic push rod 81 is activated first. The fourth hydraulic push rod 81 extends downward to push the second clamping plate 82 against the surface of the coil. The third arc groove 83 provides a covering area that matches the outer diameter of the coil. The second clamping plate 82, together with the bottom wall of the inlet / outlet hole 4, clamps the coil tightly from top to bottom, preventing the coil from warping upward or shifting position when subjected to the upward cutting force of the cutting teeth 74.

[0044] See attached document Figure 6 and attached Figure 7 The addition block 3 also has a telescopic limiting groove 84 inside, and the telescopic limiting groove 84 is connected to the mounting groove 77. The second clamping plate 82 is set in the telescopic limiting groove 84 and moves up and down. The telescopic limiting groove 84 is connected to the inlet and outlet hole 4.

[0045] Specifically, the telescopic limiting groove 84 extends vertically downward to the top of the inlet / outlet hole 4, and extends upward through the top outer surface of the mounting block 3 in a top-opening shape. The two sides of the second clamping plate 82 slide and engage in the inner wall of the telescopic limiting groove 84. The telescopic limiting groove 84 guides the second clamping plate 82 to move vertically up and down, preventing the second clamping plate 82 from deflecting laterally under the drive of the fourth hydraulic push rod 81, and ensuring that the third arc-shaped groove 83 presses against the top of the coil.

[0046] Working principle: The end of the coil enters the equipment through the inlet / outlet hole 4 of the feed end block 3, and extends through the central axis of the straightening component 5 which is in a loose state. The raw material end of the coil continues to pass forward through the inside of the protective shell 52.

[0047] The first hydraulic push rod 53 pushes the first clamping plate 54 to move towards each other, and the first arc-shaped groove 55 on the first clamping plate 54 clamps the coil inside the protective shell 52. The first drive motor 63 is started, and the first drive motor 63 rotates on the surface of the lead screw 64 and moves forward along the thread of the lead screw 64. The first drive motor 63 drives the support platform 51, together with the coil, to move towards the loading block 3 at the discharge end. During the movement of the support platform 51, the limiting slider 62 slides along the limiting guide rail 61. The support platform 51 drives the rotating straightening disk 58, which is in a loose state, to move forward synchronously with the clamped coil to complete the fixed-length traction. After the first drive motor 63 rotates a predetermined number of times to reach the set traction length, it stops running, and the coil stops moving forward.

[0048] After the coil stops moving, the two fourth hydraulic push rods 81 at the feed end and discharge end extend downwards simultaneously, using the third arc-shaped groove 83 to clamp both ends of the pulled-out coil into the mounting block 3. The second drive motor 73 is started, driving the cutting saw teeth 74 to rotate. The third hydraulic push rod 71 extends upwards, pushing the auxiliary fixing plate 72 upwards, and the guide groove 76 slides upwards along the guide rod 75. The auxiliary fixing plate 72 drives the second drive motor 73 and the cutting saw teeth 74 to move upwards inside the mounting groove 77, and the cutting saw teeth 74 cuts the coil from bottom to top, cutting the coil into independent pipe sections.

[0049] After the cutting action is completed, the third hydraulic push rod 71 retracts and drives the auxiliary fixing plate 72 to descend, and the cutting saw teeth 74 descend and reset into the mounting groove 77. The fourth hydraulic push rod 81 retracts upward and drives the second clamping plate 82 to disengage from the coil, and the cut independent pipe section is removed. The first hydraulic push rod 53 retracts to release the coil, and at the same time, the four sets of second hydraulic push rods 56 extend to make the rotating straightening disc 58 press the coil; the first drive motor 63 reverses to drive the support platform 51 back to the starting origin. During the return stroke, the feed end fixing component 8 continuously locks the coil to prevent it from retracting. The support platform 51 drives the rotating straightening disc 58 to roll in the opposite direction on the stationary coil surface to complete the rolling and straightening process. After the support platform 51 returns to the starting point, the fourth hydraulic push rod 81 and the four sets of second hydraulic push rods 56 at the feeding end retract and release the coil. Then, the first hydraulic push rod 53 drives the first clamping plate 54 to clamp the coil again. The equipment cyclically executes the aforementioned action steps according to the preset length command. When the layout of the production workshop changes and is constrained by space, and it is necessary to flexibly adjust the feeding and discharging direction, it is only necessary to place the material roll to be processed at the original discharging end. By controlling the first drive motor 63 to run in reverse as the traction working stroke, reverse feeding and discharging can be achieved. The workstations on the left and right sides of the equipment frame 1 independently perform the feeding and cutting process.

Claims

1. A dual-station coil straightening and length-cutting machine, comprising a machine frame (1), characterized in that, The equipment frame (1) is provided with mounting blocks (3) at the four corners of the top, and the mounting blocks (3) are provided with inlet and outlet holes (4). The equipment frame (1) is provided with moving components (6) on both the front and rear sides of the top. The top of the moving components (6) is connected to a straightening component (5). The central axis of the straightening component (5) is on the same horizontal line as the inlet and outlet holes (4). The mounting block (3) is provided with a cutting component (7). The mounting block (3) is provided with a fixing component (8) on the side away from the cutting component (7). The straightening component (5) includes a support platform (51), a protective shell (52) is installed on the top of the support platform (51), a set of second hydraulic push rods (56) are symmetrically distributed on the top of the support platform (51) and the bottom inside the protective shell (52), a set of second hydraulic push rods (56) are symmetrically distributed on the left and right sides inside the protective shell (52), an installation plate (57) is installed on the driving end of the second hydraulic push rod (56), a plurality of rotating straightening discs (58) are rotatably connected to the side of the installation plate (57) away from the second hydraulic push rod (56), and a second arc-shaped groove (59) is opened on the outer circumference of the rotating straightening disc (58); The multiple rotating straightening discs (58) on the mounting plate (57) connected to the top of the support platform (51) by a set of second hydraulic push rods (56) are staggered with the multiple rotating straightening discs (58) on the mounting plate (57) connected to the bottom inside the protective shell (52) by a set of second hydraulic push rods (56). The multiple rotating straightening discs (58) on the mounting plate (57) connected to the left inside the protective shell (52) by a set of second hydraulic push rods (56) are staggered with the multiple rotating straightening discs (58) on the mounting plate (57) connected to the right inside the protective shell (52) by a set of second hydraulic push rods (56).

2. The dual-station coil straightening and length cutting machine according to claim 1, characterized in that, The moving component (6) includes two limiting guide rails (61) installed on the top of the equipment frame (1), and the limiting guide rails (61) are slidably connected with limiting sliders (62) distributed in front and behind, and the limiting sliders (62) are arranged on both sides of the bottom of the support platform (51).

3. A dual-station coil straightening and length-cutting machine according to claim 2, characterized in that, The top of the equipment frame (1) is provided with a lead screw (64), and the lead screw (64) is connected to a first drive motor (63).

4. A dual-station coil straightening and length-cutting machine according to claim 3, characterized in that, The first drive motor (63) is a through-type motor. The first drive motor (63) is sleeved through the outside of the lead screw (64). The first drive motor (63) is installed at the bottom of the support platform (51).

5. A dual-station coil straightening and length-cutting machine according to claim 1, characterized in that, The protective shell (52) has a pair of first hydraulic push rods (53) symmetrically distributed on both the left and right sides. Each of the pair of first hydraulic push rods (53) is located on both sides of a corresponding set of second hydraulic push rods (56). The driving end of the first hydraulic push rod (53) is equipped with a first clamping plate (54). The first clamping plate (54) has a first arc-shaped groove (55) on the side away from the first hydraulic push rod (53).

6. A dual-station coil straightening and length-cutting machine according to claim 1, characterized in that, The cutting assembly (7) includes a third hydraulic push rod (71) mounted on the top of the equipment frame (1), an auxiliary fixing plate (72) is mounted on the drive end of the third hydraulic push rod (71), and a second drive motor (73) is mounted on one side of the auxiliary fixing plate (72).

7. A dual-station coil straightening and length-cutting machine according to claim 6, characterized in that, The second drive motor (73) has a cutting saw tooth (74) installed at its drive end. The mounting block (3) has an installation groove (77) inside. The cutting saw tooth (74) is located inside the installation groove (77) and moves up and down along the installation groove (77).

8. A dual-station coil straightening and length-cutting machine according to claim 7, characterized in that, The mounting groove (77) has two guide rods (75) fixedly connected inside. The auxiliary fixing plate (72) has guide grooves (76) on both the left and right sides. The guide rods (75) are slidably connected to the guide grooves (76).

9. A dual-station coil straightening and length-cutting machine according to claim 1, characterized in that, The fixing component (8) includes a fourth hydraulic push rod (81) disposed on the top of the mounting block (3), and a second clamping plate (82) is installed on the driving end of the fourth hydraulic push rod (81). A third arc-shaped groove (83) is provided on the side of the second clamping plate (82) away from the fourth hydraulic push rod (81).

10. A dual-station coil straightening and length-cutting machine according to claim 9, characterized in that, The mounting block (3) is also provided with a telescopic limiting groove (84), and the second clamping plate (82) is disposed in the telescopic limiting groove (84) and moves up and down. The telescopic limiting groove (84) is connected to the inlet and outlet hole (4).

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