A double-end alternate feeding uncoiler

Abstract

The utility model provides a kind of uncoiling equipment of double-end alternate feeding, including rack assembly, reel assembly, rotating mechanism and feeding trolley.Rack rotating box of rack assembly is respectively assembled reel assembly on both sides, and rack rotating box is rotated by rotating mechanism drive.Racking trolley is cooperated with rotating mechanism, and the reel assembly of both sides can be fed to coil.Rotating mechanism includes rotating executor, gear transmission mechanism and positioning assembly, and positioning assembly is cooperated with guide flange and locks rack rotating box by positioning pin shaft.Reel assembly uses different shaft structure's long main shaft, and is equipped with pressure arm device.Feeding trolley includes driving wheel group, driven wheel group, feeding seat, guide structure and feeding executor, realizes the horizontal movement and vertical jacking of coil.The utility model is fed by both ends synchronously, significantly shortens the time of changing material, improves production efficiency, optimizes space utilization, enhances bearing capacity and operating stability, and ensures operation precision and safety.

Description

Technical Field

[0001] This utility model relates to the field of uncoiling equipment technology, and in particular to an uncoiling equipment with alternating feeding at both ends. Background Technology

[0002] Uncoiling equipment is widely used in industrial production to unwind coiled materials (such as steel coils and aluminum coils) for use in subsequent processing lines. Traditional uncoiling equipment typically has only one loading station. When the current coil is used up or a different specification coil needs to be replaced, the production line must stop, waiting for workers to remove the old coil and then hoist, position, and secure the new coil onto the uncoiling equipment. This process is usually time-consuming, especially for large-sized and heavy coils, where the operation is more complex, leading to prolonged production line downtime and severely impacting production efficiency and capacity.

[0003] Specifically, in some production scenarios, production needs to be based on order quantities. This means that after completing the ordered quantity, the current steel coil needs to be removed from the uncoiler and replaced with a different specification of steel coil to prepare for the next order. Removing the steel coil from the uncoiler, replacing it, and making the necessary adjustments is a time-consuming and labor-intensive process. During this period, subsequent production processes are forced to halt, resulting in significant time waste and a decrease in production efficiency.

[0004] The main technical problems faced by existing unwinding equipment are: Long material changeover time: In single-station feeding mode, the material changeover process involves the removal of old material rolls and the installation of new material rolls, resulting in excessive downtime for the equipment.

[0005] Low production efficiency: Downtime caused by material changes makes it difficult to improve the overall utilization rate and production efficiency of the production line.

[0006] Complex operation and high labor intensity: Changing large coils usually requires the use of lifting equipment and precise alignment, which is complex and labor-intensive.

[0007] Therefore, those skilled in the art urgently need an uncoiling device that can effectively shorten material change time and improve production efficiency to meet the demands of modern industrial production for efficient and continuous production. Utility Model Content

[0008] To overcome the shortcomings of the prior art, this utility model aims to provide a technical solution that can solve the above problems.

[0009] This utility model provides an unwinding device with alternating feeding at both ends, comprising: The material rack assembly includes a material rack base fixed to the ground, a material rack fixing box fixed to the material rack base, and a material rack rotating box rotatably connected to the material rack fixing box. The rotating box is equipped with roller assemblies on both sides to realize the rotation and repositioning of the roller assemblies on both sides. A roll assembly for carrying a roll of material, and includes a roll spindle rotatably connected to the rotating box of the material rack, and an unwinding power mechanism mounted on the rotating box of the material rack and drivenly connected to the roll spindle, wherein the unwinding power mechanism drives the roll spindle to unwind the roll. A rotating mechanism is assembled between the fixed box of the material rack and the rotating box of the material rack, and drives the rotating box of the material rack to rotate. The loading trolley is mounted on the ground and corresponds to one side of the rotating box of the material rack. It is used to load the material rolls onto the roll assemblies on both sides in conjunction with the rotation operation of the rotating box of the material rack.

[0010] Furthermore: the rotating mechanism includes a rotating actuator, a rotating support plate, a rotating sleeve, and a rotating shaft; the rotating sleeve is fixedly connected to the material rack fixing box, and the rotating shaft is fixedly connected to the material rack rotating box, with a rotating connection between the rotating sleeve and the rotating shaft formed by a bearing; the rotating support plate is fixedly connected to one end of the rotating sleeve near the material rack rotating box, the rotating actuator is fixedly connected to the rotating support plate, and a rotating drive gear is provided on its output shaft; a rotating driven gear is provided on the rotating shaft corresponding to the rotating drive gear, and the rotating driven gear meshes with the rotating drive gear to drive the rotating actuator to rotate, thereby causing the rotating shaft to rotate synchronously with the material rack rotating box.

[0011] Furthermore: the rotating shaft sleeve has a first step at each end of the shaft hole that mates with the rotating shaft; the rotating shaft has two sets of first bearings at the corresponding first step positions at both ends, and the rotating shaft is rotatably connected to the rotating shaft sleeve through the two sets of first bearings.

[0012] Furthermore: the shaft hole of the rotating bushing is provided with a second step at one end near the rotating box of the material rack; the rotating shaft is provided with a second bearing at the part corresponding to the second step, and the second bearing is an axial load rolling bearing.

[0013] Furthermore, the rotating mechanism is also provided with a positioning component for locking the rotation state of the material rack rotating box; the positioning component is provided with a positioning sleeve, a positioning pin and a positioning actuator; the positioning sleeve is fixed to the rotating support plate, one end of the positioning pin is driven to the output end of the positioning actuator, and the other end passes through the positioning sleeve and extends towards the material rack rotating box, for inserting into the guide flange of the material rack rotating box, and cooperating with the guide flange to lock the material rack rotating box.

[0014] Furthermore, the positioning assembly also includes a positioning adapter plate, positioning guide posts, and a positioning spring; the bottom of the positioning adapter plate is fixedly connected to the output end of the positioning actuator along the vertical direction, and the top is drivenly connected to the positioning pin shaft; the two ends of the positioning adapter plate along the horizontal direction are respectively provided with guide holes, one end of the two positioning guide posts passes through the guide holes to form a sliding connection, and the other end is fixedly connected to the rotating support plate; the positioning spring is sleeved on the positioning pin shaft, and its two ends abut against the positioning adapter plate and the positioning sliding sleeve respectively, for driving the positioning pin shaft to move away from the rotating box of the material rack, so that the positioning pin shaft is withdrawn from the guide flange and the locking of the rotating box of the material rack is released.

[0015] Furthermore: the drum assembly includes a first drum group and a second drum group, which are respectively assembled on both sides of the material rack rotating box; the drum spindles of the first drum group and the second drum group are set with different shaft structures, and the length of the drum spindles penetrating into the material rack rotating box is greater than half the width of the material rack rotating box along the extension direction of the drum spindle.

[0016] Furthermore, the roll assembly is also provided with a pressure arm device for pressing the material roll; the pressure arm device includes a pressure arm, a pressure arm shaft, a pressure arm bracket, a pressure arm actuator, and a pressure arm connecting rod; the pressure arm bracket is fixedly connected to the material rack rotating box, one end of the pressure arm shaft is rotatably connected to the pressure arm bracket, and the other end extends parallel to the roll main shaft and toward the material roll direction, and is fixedly connected to one end of the pressure arm; the other end of the pressure arm presses the material roll through a pressure roller; the pressure arm actuator is connected to the material rack rotating box, and its output end is drivenly connected to one end of the pressure arm connecting rod, the other end of the pressure arm connecting rod is fixedly connected to the pressure arm shaft, and is used to drive the pressure arm shaft to rotate, so that the pressure arm rotates synchronously to achieve pressing.

[0017] Furthermore: the loading trolley is equipped with a trolley guide rail, a trolley frame, a drive wheel set, a driven wheel set, and a trolley actuator; the trolley guide rail is mounted on the ground along the extension direction of the drum spindle, and the drive wheel set and driven wheel set are respectively mounted on the bottom of the trolley frame to move the trolley frame along the trolley guide rail; the trolley actuator is installed on the trolley frame and is connected to the drive wheel set for driving the drive wheel set and the trolley frame to move along the trolley guide rail.

[0018] Furthermore, the loading trolley is also equipped with a loading seat, a guide structure, and a loading actuator; the loading seat is used to carry the material roll and is installed on the trolley frame through the guide structure, and can slide vertically along the trolley frame; the guide structure is equipped with a guide sleeve and a guide post, the loading actuator and the guide sleeve are respectively installed on the top of the trolley frame, one end of the guide post is fixed to the bottom of the loading seat, and the other end passes into the guide sleeve to form a guiding fit; the output end of the loading actuator is drivenly connected to the bottom of the loading seat, and is used to drive the loading seat to move vertically.

[0019] Compared with the prior art, the beneficial effects of this utility model are: ① Significantly improves production efficiency: It enables simultaneous feeding from both ends, meaning that while one winding assembly is unwinding normally, the other winding assembly can be used for feeding or changing rolls. This innovative working mode greatly reduces downtime for changing rolls, thereby significantly improving the overall uptime and production efficiency of the production line.

[0020] ② Reduce labor costs and labor intensity: Through the cooperation of the rotating mechanism and the loading trolley, only one loading trolley is needed to complete the loading operation of the two-sided drum assembly, which simplifies the operation process and reduces the manpower and time required for material change.

[0021] ③ Optimize space utilization: The design allows for material loading from both ends with only one operating surface, effectively saving the floor space of the production workshop and improving space utilization.

[0022] ④ Enhanced equipment load-bearing capacity and stability: By adopting an extended drum spindle design with different shaft structures and optimizing bearing configuration (such as tapered roller bearings, axial load rolling bearings, self-aligning roller bearings, etc.), the center of gravity of the material roll is brought closer to the center of the equipment, which significantly improves the load-bearing capacity and operational stability of the equipment and can adapt to heavier and larger material rolls.

[0023] ⑤ Improve operational accuracy and safety: The carefully designed positioning components (including positioning actuators, positioning pins, guide flanges, positioning springs, and sensors) ensure the accuracy and reliability of the rotation positioning of the material rack rotating box and provide a correction function. Even with slight deviations, it can be locked smoothly, thereby ensuring the safety of the equipment during high-speed operation and material changing.

[0024] ⑥ Extend equipment service life: Key components (such as rotating shaft and rotating bushing, positioning pin and positioning sleeve, guide sleeve and guide column) are made of high-strength materials, with optimized bearing configuration (such as self-lubricating rolled bearing, self-lubricating oil-impregnated bearing) and precision fit, which reduces wear and extends the service life of the equipment.

[0025] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rotating mechanism and drum assembly of this utility model; Figure 3 This is a schematic diagram of the structure of the drum spindle and the expansion and contraction device of this utility model; Figure 4 This is a schematic diagram of the positioning component and the rotating box of the material rack of this utility model; Figure 5 This is a structural schematic diagram of the positioning pin and guide flange of this utility model; Figure 6 This is a cross-sectional schematic diagram of the rotating mechanism and positioning component of this utility model; Figure 7 This is a schematic diagram of the rotating shaft and rotating bushing of this utility model. Figure 8 This is a structural schematic diagram of the trolley guide rail and trolley frame of this utility model; Figure 9 This is a structural schematic diagram of the drive wheel assembly and the driven wheel assembly of this utility model; Figure 10 This is a structural schematic diagram of the feeding actuator and guide column of this utility model; Figure 11 This is a structural schematic diagram of the pressure arm device of this utility model.

[0028] The reference numerals and names in the figure are as follows: 10. Material rack assembly; 11. Material rack base; 12. Material rack fixing box; 13. Material rack rotating box; 14. Guide flange; 20. Drum assembly; 21. First drum group; 22. Second drum group; 23. Drum spindle; 24. Unwinding actuator; 25. Drive sprocket; 26. Driven sprocket; 27. Expanding / contracting device; 30. Rotating mechanism; 31. Rotating shaft; 32. Rotating driven gear; 33. Rotating actuator; 34. Rotating drive gear; 35. Rotating support plate; 36. Rotating bushing; 37. First bearing; 38. Second bearing; 40. Positioning assembly; 41 Positioning sleeve; 42 Positioning pin; 43 Positioning actuator; 44 Positioning adapter plate; 45 Positioning guide post; 46 Positioning spring; 47 Limiting block; 50 Pressure arm device; 51 Pressure arm; 52 Pressure roller; 53 Pressure arm shaft; 54 Pressure arm bracket; 55 Pressure arm actuator; 56 Pressure arm connecting rod; 60 Loading trolley; 61 Trolley guide rail; 62 Trolley frame; 63 Drive wheel set; 64 Driven wheel set; 65 Trolley actuator; 66 Loading seat; 67 Loading actuator; 68 Guide sleeve; 69 Guide post; 70 Material coil. Detailed Implementation

[0029] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] Please see Figures 1 to 11 In this embodiment of the present invention, an unwinding device with alternating feeding at both ends includes: The material rack assembly 10 includes a material rack base 11 fixed to the ground, a material rack fixing box 12 fixed to the material rack base 11, and a material rack rotating box 13 rotatably connected to the material rack fixing box 12. The rotating box 13 is equipped with a roller assembly 20 on both sides to realize the rotation and repositioning of the roller assemblies 20 on both sides. The roll assembly 20 is used to carry the material roll 70 and is provided with a roll spindle 23 rotatably connected to the material rack rotating box 13, and an unwinding power mechanism assembled in the material rack rotating box 13 and drivenly connected to the roll spindle 23. The unwinding power mechanism drives the roll spindle 23 to unwind the material roll 70. A rotating mechanism 30 is assembled between the material rack fixing box 12 and the material rack rotating box 13, and drives the material rack rotating box 13 to rotate; The loading trolley 60 is mounted on the ground and corresponds to one side of the material rack rotating box 13. It is used to cooperate with the rotation operation of the material rack rotating box 13 to load the material rolls 70 onto the roll assemblies 20 on both sides.

[0031] Specifically, to address the problem in existing uncoiling equipment where the time-consuming removal of the coil 70 when changing to different specifications leads to production stoppages, this invention provides an uncoiling device with alternating feeding from both ends. In one embodiment of this invention, the device achieves the above objective in the following way: A dual-roll assembly 20 and a rotating mechanism 30 are configured: Roll assemblies 20 are respectively assembled on both sides of the material rack rotating box 13, and a rotating mechanism 30 is set between the material rack fixed box 12 and the material rack rotating box 13 to drive the material rack rotating box 13 to rotate. The rotating mechanism 30 can realize the rotation of the material rack rotating box 13 by 180 degrees and is precisely positioned and locked by a positioning pin mechanism. In this way, when one side of the roll assembly 20 is performing normal unwinding operation, the other side of the roll assembly 20 can simultaneously perform material roll 70 loading or changing operation, thereby greatly reducing material change time and significantly improving production efficiency.

[0032] Optimized spindle structure: The spindle 23 of the drum assembly 20 has been lengthened and the material rack base 11 has been integrated into a single structure, which effectively avoids the occurrence of off-center loading and improves the load-bearing capacity, such as being able to support a material roll 70 weighing up to 15 tons.

[0033] High efficiency of the loading trolley 60: Through the design of the rotating mechanism 30, only one loading trolley 60 is needed to load the material rolls 70 of the two-sided winding assembly 20. In addition, since only one operating surface space is needed to complete loading at both ends, it effectively saves space in the production workshop and improves space utilization.

[0034] like Figures 4 to 7 As shown, preferably, the rotating mechanism 30 includes a rotating actuator 33, a rotating support plate 35, a rotating bushing 36, and a rotating shaft 31; the rotating bushing 36 is fixedly connected to the material rack fixing box 12, and the rotating shaft 31 is fixedly connected to the material rack rotating box 13, with the rotating bushing 36 and the rotating shaft 31 forming a rotatable connection through a bearing; the rotating support plate 35 is fixedly connected to one end of the rotating bushing 36 near the material rack rotating box 13, and the rotating actuator 33 is fixedly connected to the rotating support plate 35, with a rotating drive gear 34 provided on its output shaft; the rotating shaft 31 has a rotating driven gear 32 at the position corresponding to the rotating drive gear 34, and the rotating driven gear 32 meshes with the rotating drive gear 34 to drive the rotating actuator 33 to rotate, thereby causing the rotating shaft 31 to rotate synchronously with the material rack rotating box 13.

[0035] Specifically, to ensure the driving torque and transmission stability of the rotating mechanism 30, the rotating actuator 33 preferably adopts a BMR type axially distributed cycloidal hydraulic motor. This type of hydraulic motor can receive pressurized oil from the hydraulic system, convert pressure energy into rotational motion and torque, and can stably drive the rotating box 13 of the material rack to rotate.

[0036] Considering the large total weight of the rotating box 13, the drum assembly 20, and the material roll 70, it is necessary to improve the driving capability by reducing speed and increasing torque. Therefore, the diameter and number of teeth of the rotating drive gear 34 are set to be smaller than those of the rotating driven gear 32. The gear meshing forms a speed reduction transmission effect, which further improves the output torque of the rotating actuator 33 and ensures that it can smoothly drive heavy loads.

[0037] In addition, the rotating shaft 31 and the driven gear 32 are both fixed to the bottom of the rotating box 13 of the material rack, and the driven gear 32 is sleeved on the rotating shaft 31 and forms a fixed connection, and the two are coaxially assembled; the rotating shaft 31 and the rotating box 13 of the material rack can adopt a flange and bolt connection structure to ensure connection strength and coaxiality, and avoid deviation or loosening during rotation.

[0038] like Figure 6 and Figure 7 As shown, preferably, the rotating bushing 36 is provided with first step positions at both ends of the shaft hole of the rotating shaft 31; the rotating shaft 31 is provided with two sets of first bearings 37 at the corresponding first step positions at both ends, and the rotating shaft 31 is rotatably connected to the rotating bushing 36 through the two sets of first bearings 37.

[0039] Specifically, to provide stable support for the rotating shaft 31 and reduce frictional losses during rotation, a first bearing 37 is provided between the rotating bushing 36 and the rotating shaft 31. Considering that the rotating shaft 31 needs to simultaneously bear radial loads (radial pressure from the load) and axial loads (axial force from the rotating housing 13 of the material rack) during equipment operation, and needs to be adaptable to heavy-duty scenarios, the first bearing 37 is preferably a tapered roller bearing. This type of bearing has the ability to simultaneously bear radial and axial loads, has a strong load-bearing capacity, and is suitable for high-speed or heavy-duty conditions, which can effectively extend the service life of the rotating mechanism 30.

[0040] By setting a set of first bearings 37 at both ends of the shaft hole of the rotating bushing 36, both ends of the rotating shaft 31 can be supported, forming a double support structure, which further improves the rotational stability of the rotating shaft 31 and avoids deflection or offset problems caused by single-end support.

[0041] like Figure 6 and Figure 7 As shown, preferably, the shaft hole of the rotating bushing 36 is provided with a second step at one end near the rotating box 13 of the material rack; the rotating shaft 31 is provided with a second bearing 38 at the part corresponding to the second step, and the second bearing 38 is an axial load rolling bearing.

[0042] Specifically, in order to further enhance the axial load bearing capacity of the rotating mechanism 30 and enable the material rack rotating box 13 and the drum assembly 20 to bear heavier material rolls 70, a second step is added at the end of the rotating bushing 36 near the material rack rotating box 13, and a second bearing 38 is set at the corresponding part of the rotating shaft 31.

[0043] Since this part mainly bears axial loads, the second bearing 38 is preferably a rolling bearing specifically adapted to axial loads, and more preferably a thrust ball bearing. The core function of the thrust ball bearing is to bear axial loads. It has a simple structure and compact axial dimensions, which can accurately match the force requirements of this part. Together with the first bearing 37 (tapered roller bearing), it forms a comprehensive load-bearing system of "radial + axial", which greatly improves the heavy-load adaptability of the equipment.

[0044] like Figures 4 to 6As shown, preferably, the rotating mechanism 30 is further provided with a positioning component 40 for locking the rotation state of the material rack rotating box 13; the positioning component 40 is provided with a positioning sleeve 41, a positioning pin 42 and a positioning actuator 43; the positioning sleeve 41 is fixed to the rotating support plate 35, one end of the positioning pin 42 is connected to the output end of the positioning actuator 43, and the other end passes through the positioning sleeve 41 and extends towards the material rack rotating box 13, for inserting into the guide flange 14 of the material rack rotating box 13, and cooperating with the guide flange 14 to lock the material rack rotating box 13.

[0045] Specifically, the positioning actuator 43 preferably adopts a MOB lightweight tie-rod hydraulic cylinder capable of linear motion. This type of cylinder can precisely drive the positioning pin 42 to move linearly along the positioning sleeve 41, so that the positioning pin 42 accurately enters the guide flange 14 installed at a preset position in the material rack rotating box 13. Through the limiting cooperation between the positioning pin 42, the positioning sleeve 41, and the guide flange 14, the position of the material rack rotating box 13 is reliably locked, preventing it from rotating accidentally during the uncoiling operation.

[0046] To ensure the accuracy and smoothness of the linear motion of the positioning pin 42, a positioning sleeve 41 is provided and fixed to the rotating support plate 35, and the positioning pin 42 is slidably connected to the positioning sleeve 41. Furthermore, a self-lubricating rolled bearing is added between the positioning sleeve 41 and the positioning pin 42. The bearing is made of stainless steel as the base material and coated with PTFE material. It combines the high strength of stainless steel with the low coefficient of friction and self-lubricating properties of PTFE, which can effectively reduce the frictional resistance between the positioning pin 42 and the positioning sleeve 41, ensuring smooth sliding and preventing wear.

[0047] like Figure 5 and Figure 6 As shown, preferably, the positioning assembly 40 further includes a positioning adapter plate 44, positioning guide posts 45, and a positioning spring 46; the bottom of the positioning adapter plate 44 is fixedly connected to the output end of the positioning actuator 43 in the vertical direction, and the top is connected to the positioning pin 42; the two ends of the positioning adapter plate 44 in the horizontal direction are respectively provided with guide holes, one end of the two positioning guide posts 45 passes through the guide holes to form a sliding connection, and the other end is fixedly connected to the rotating support plate 35; the positioning spring 46 is sleeved on the positioning pin 42, and its two ends abut against the positioning adapter plate 44 and the positioning sliding sleeve 41 respectively, for driving the positioning pin 42 to move away from the rotating box 13 of the material rack, so that the positioning pin 42 is withdrawn from the guide flange 14 and the locking of the rotating box 13 of the material rack is released.

[0048] Specifically, to further improve the accuracy of the linear motion of the positioning pin 42, positioning guide posts 45 are fixedly connected to both sides of the rotating support plate 35 corresponding to the positioning sleeve 41, and a positioning adapter plate 44 is assembled at the output end of the positioning actuator 43. By utilizing the sliding fit between the guide holes at both ends of the positioning adapter plate 44 in the horizontal direction and the positioning guide posts 45, the positioning adapter plate 44 is guided to slide smoothly along the positioning guide posts 45, thereby driving the positioning pin 42 to move accurately.

[0049] Considering that there may be slight deviations in the rotation angle of the rotating box 13 of the material rack, in order to ensure that the positioning pin 42 is smoothly inserted into the guide flange 14, the positioning pin 42 and the positioning adapter plate 44 are set as pins that can rotate at a certain angle (that is, the positioning pin 42 is rotatably connected to the positioning adapter plate 44 through a small pin rod); at the same time, a slope is set on the part of the guide flange 14 facing the positioning pin 42, and a tapered structure is set on the end of the positioning pin 42 facing the guide flange 14. Through the guiding cooperation of the slope and the tapered structure, the positioning pin 42 is inserted to correct its deviation.

[0050] To facilitate the release of the locking mechanism of the rotating housing 13, a positioning spring 46 is fitted onto the positioning pin 42, with its two ends abutting against the positioning sleeve 41 and the positioning adapter plate 44, respectively. The spring force keeps the positioning pin 42 moving away from the rotating housing 13. When the positioning actuator 43 applies a retraction force to the positioning pin 42 through the positioning adapter plate 44, the positioning pin 42 can be more smoothly retracted from the guide flange 14 with the assistance of the positioning spring 46.

[0051] In addition, two sets of proximity sensors are installed on the side of the positioning component 40 to sense the position of the positioning adapter plate 44, thereby determining whether the positioning pin 42 is inserted into the guide flange 14, and realizing real-time monitoring of the locking state of the material rack rotating box 13. At the same time, a set of limit blocks 47 are respectively installed on both sides of the upper part of the rotating pallet 35 with an angle difference of 180 degrees, and a stop block is installed at the bottom of the material rack rotating box 13 corresponding to the limit blocks 47; when the stop block rotates synchronously with the material rack rotating box 13 to a preset angle, it will be blocked by the limit blocks 47, effectively preventing the material rack rotating box 13 from rotating excessively.

[0052] like Figure 2 and Figure 3 As shown, preferably, the roll assembly 20 is provided with a first roll group 21 and a second roll group 22, which are respectively assembled on both sides of the material rack rotating box 13; the roll main shafts 23 of the first roll group 21 and the second roll group 22 are set with different shaft structures, and the length of the roll main shaft 23 inserted into the material rack rotating box 13 is greater than half of the width of the material rack rotating box 13 along the extension direction of the roll main shaft 23.

[0053] Specifically, since the first roll assembly 21 and the second roll assembly 22 operate at different times (for example, when the second roll assembly 22 of the leveling equipment is performing normal unwinding operation, the first roll assembly 21 may be in the feeding state), the two roll assemblies 20 are each equipped with an independent unwinding power mechanism to ensure that their actions do not interfere with each other and improve the flexibility of equipment operation.

[0054] To further enhance the load-bearing capacity of the drum assembly 20, the main shafts 23 of the two drum assemblies 20 are configured with different shaft structures, facilitating the extension design of the main shafts 23. The length of the main shaft 23 extending into the material rack rotating box 13 is greater than half the width of the material rack rotating box 13 along the extension direction of the main shaft 23, more preferably greater than two-thirds. This design allows the center of gravity of the coil 70 carried by the drum assembly 20 to shift towards the middle of the material rack rotating box 13, reducing the off-center load moment and thus increasing the maximum load-bearing capacity of the equipment.

[0055] A self-aligning roller bearing is installed between the drum spindle 23 and the material rack rotating box 13. This type of bearing has self-aligning capability and strong load-bearing capacity, and can adapt to shaft installation deviations and deflection. It is suitable for heavy-load, impact, and shaft deformation scenarios, ensuring stable rotation of the drum spindle 23. In addition, the drum spindle 23 is also equipped with an expansion and contraction device 27, which is used to adjust the drum diameter to accommodate material rolls 70 with different inner diameters, and to clamp and unwind the material rolls 70, ensuring smooth unwinding.

[0056] The unwinding power mechanism includes an unwinding actuator 24, a driving sprocket 25, and a driven sprocket 26. The unwinding actuator 24 is fixedly connected to the material rack rotating box 13. The driving sprocket 25 is drivenly connected to the output end of the unwinding actuator 24. The driven sprocket 26 is fixedly connected to the winding drum spindle 23. The driving sprocket 25 and the driven sprocket 26 are connected by a chain. To achieve speed reduction and torque increase, the diameter and number of teeth of the driven sprocket 26 are both set to be larger than those of the driving sprocket 25. The chain drive reduces the output speed and increases the output torque to meet the power requirements of the unwinding operation. At the same time, both the driving sprocket 25 and the driven sprocket 26 adopt a double sprocket structure to further improve the load-bearing capacity of the transmission.

[0057] The unwinding actuator 24 preferably uses a GH40 horizontal geared motor, which provides stable torque output and further enhances the unwinding power. A braking device is also installed inside the material rack rotating box 13 corresponding to the main shaft 23 of the winding drum. Utilizing the brake pads mounted on the main shaft 23 and the DBF- / 15 pneumatic / hydraulic disc brake installed on the inner wall of the material rack rotating box 13, the unwinding speed of the main shaft 23 can be precisely controlled or emergency braking can be achieved, ensuring the stability and safety of the unwinding process.

[0058] like Figure 1 and Figure 11As shown, preferably, the roll assembly 20 is further provided with a pressure arm device 50 for pressing the material roll 70; the pressure arm device 50 is provided with a pressure arm 51, a pressure arm shaft 53, a pressure arm bracket 54, a pressure arm actuator 55, and a pressure arm connecting rod 56; the pressure arm bracket 54 is fixedly connected to the material rack rotating box 13, one end of the pressure arm shaft 53 is rotatably connected to the pressure arm bracket 54, and the other end extends parallel to the roll main shaft 23 and toward the material roll 70, and is fixedly connected to one end of the pressure arm 51; the other end of the pressure arm 51 presses the material roll 70 through a pressure roller 52; the pressure arm actuator 55 is connected to the material rack rotating box 13, and its output end is drivenly connected to one end of the pressure arm connecting rod 56, the other end of the pressure arm connecting rod 56 is fixedly connected to the pressure arm shaft 53, and is used to drive the pressure arm shaft 53 to rotate, so that the pressure arm 51 rotates synchronously to achieve pressing.

[0059] Specifically, the pressure arm bracket 54 is preferably mounted on the side wall of the material rack rotating box 13 where the roll assembly 20 is not installed, so as to provide stable support for the pressure arm shaft 53; the pressure arm shaft 53 is rotatably connected to the pressure arm bracket 54 through a seated ball bearing to ensure the flexible rotation of the pressure arm shaft 53. One end of the pressure arm shaft 53 extending towards the material roll 70 is fixed to one end of the pressure arm 51, and the other end of the pressure arm 51 is rotatably connected to the pressure roller 52 through a deep groove ball bearing, so that the pressure roller 52 can roll synchronously with the rotation of the material roll 70, reducing frictional damage between the pressure roller 52 and the material roll 70.

[0060] The pressure arm actuator 55 adopts the SC series standard double-acting cylinder. This type of cylinder has a rapid action response and stable thrust. Through the pressure arm connecting rod 56, the linear motion is converted into the rotational motion of the pressure arm shaft 53, which drives the pressure arm 51 to rotate synchronously, thereby applying a stable clamping force to the material coil 70, preventing the material coil 70 from loosening or shifting during the unwinding process, and ensuring the smooth release of the strip.

[0061] like Figure 8 and Figure 9 As shown, preferably, the loading trolley 60 is provided with a trolley guide rail 61, a trolley frame 62, a drive wheel set 63, a driven wheel set 64, and a trolley actuator 65; the trolley guide rail 61 is mounted on the ground along the extension direction of the drum spindle 23, the drive wheel set 63 and the driven wheel set 64 are respectively mounted on the bottom of the trolley frame 62, for moving the trolley frame 62 along the trolley guide rail 61; the trolley actuator 65 is installed on the trolley frame 62 and is connected to the drive wheel set 63 for driving the drive wheel set 63 and the trolley frame 62 to move along the trolley guide rail 61.

[0062] Specifically, in order to enable the lateral movement of the loading trolley 60 so that the loaded material roll 70 can be accurately fitted into the main shaft 23 of the drum, a trolley guide rail 61 is laid on the ground along the extension direction of the main shaft 23 of the drum. The bottom of the trolley frame 62 is equipped with a drive wheel set 63 and a driven wheel set 64. Both wheel sets are equipped with wheels and axles. The axles are assembled to the bottom of the trolley frame 62 by UCP209 type outer spherical bearing with seat. This type of bearing is easy to install, has a strong load-bearing capacity, and can ensure the stable rotation of the wheel set.

[0063] The drive wheel assembly 63 is equipped with a drive gear corresponding to the trolley actuator 65. This drive gear meshes with the output gear of the trolley actuator 65 to form a gear transmission structure. The trolley actuator 65 adopts a BMR type axially oil-distributed cycloidal hydraulic motor, which is consistent with the selection of the rotary actuator 33 of the rotary mechanism 30, facilitating equipment maintenance and spare parts standardization. The hydraulic motor drives the drive gear to rotate, which in turn drives the drive wheel assembly 63 to roll, realizing the smooth movement of the trolley frame 62 along the trolley guide rail 61.

[0064] like Figure 8 and Figure 10 As shown, preferably, the loading trolley 60 is further provided with a loading seat 66, a guide structure, and a loading actuator 67; the loading seat 66 is used to carry the material roll 70 and is installed on the trolley frame 62 through the guide structure, and can slide vertically along the trolley frame 62; the guide structure is provided with a guide sleeve 68 and a guide post 69, the loading actuator 67 and the guide sleeve 68 are respectively installed on the top of the trolley frame 62, one end of the guide post 69 is fixed to the bottom of the loading seat 66, and the other end passes into the guide sleeve 68 to form a guiding fit; the output end of the loading actuator 67 is drivenly connected to the bottom of the loading seat 66, and is used to drive the loading seat 66 to move vertically.

[0065] Specifically, the loading actuator 67 adopts an SOBΦ100-300-FA hydraulic cylinder. This model of hydraulic cylinder has a cylinder diameter of 100mm, a stroke of 300mm, and a front flange installation form. It has good rigid support performance and can drive the loading seat 66 to perform stable vertical lifting movement.

[0066] During loading, the loading actuator 67 first drives the loading seat 66 to rise upwards, raising the loaded material coil 70 to the same horizontal height as the main shaft 23 of the drum. Then, the trolley actuator 65 drives the trolley frame 62 to move towards the main shaft 23 of the drum, ensuring the material coil 70 is accurately fitted onto the main shaft 23, completing the loading operation. To improve the smoothness and accuracy of the vertical movement of the loading seat 66, a self-lubricating oil-impregnated bearing is installed between the guide sleeve 68 and the guide post 69. This bearing requires no additional lubrication, has a low coefficient of friction, and ensures that the guide post 69 slides smoothly along the guide sleeve 68, preventing deviation or jamming during the lifting process of the loading seat 66.

[0067] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A double-end alternating feed unwinding apparatus, characterized by, include: The material rack assembly (10) is provided with a material rack base (11) fixed to the ground, a material rack fixing box (12) fixed to the material rack base (11), and a material rack rotating box (13) rotatably connected to the material rack fixing box (12). The material rack rotating box (13) is equipped with a roller assembly (20) on both sides to realize the rotation and repositioning of the roller assemblies (20) on both sides. A roll assembly (20) is used to carry a roll (70) and is provided with a roll spindle (23) rotatably connected to the material rack rotating box (13) and an unwinding power mechanism assembled in the material rack rotating box (13) and drivenly connected to the roll spindle (23). The unwinding power mechanism drives the roll spindle (23) to drive the roll (70) to unwind. A rotating mechanism (30) is assembled between the fixed box (12) of the material rack and the rotating box (13) of the material rack, and drives the rotating box (13) of the material rack to rotate; The loading trolley (60) is mounted on the ground and corresponds to one side of the material rack rotating box (13). It is used to cooperate with the rotation operation of the material rack rotating box (13) to load the material rolls (70) onto the roll assemblies (20) on both sides.

2. The double-end, alternating feed, decoiling apparatus of claim 1, wherein, The rotating mechanism (30) is provided with a rotating actuator (33), a rotating support plate (35), a rotating bushing (36), and a rotating shaft (31); the rotating bushing (36) is fixed to the material rack fixing box (12), and the rotating shaft (31) is fixed to the material rack rotating box (13). The rotating bushing (36) and the rotating shaft (31) are connected by a bearing; the rotating support plate (35) is fixed to one end of the rotating bushing (36) near the material rack rotating box (13), and the rotating actuator (33) is fixed to the rotating support plate (35). A rotating drive gear (34) is provided on its output shaft; a rotating driven gear (32) is provided on the part of the rotating shaft (31) corresponding to the rotating drive gear (34). The rotating driven gear (32) meshes with the rotating drive gear (34) to drive the rotating actuator (33) to rotate, thereby driving the rotating shaft (31) to rotate synchronously with the material rack rotating box (13).

3. The unwinding device with alternating feeding at both ends according to claim 2, characterized in that, The rotating bushing (36) is equipped with a first step at both ends of the shaft hole of the rotating shaft (31); the rotating shaft (31) is provided with two sets of first bearings (37) at the corresponding first step positions at both ends, and the rotating shaft (31) is rotatably connected to the rotating bushing (36) through the two sets of first bearings (37).

4. The dual end, alternating feed, decoiling apparatus of claim 3, wherein, The rotating bushing (36) has a second step at one end of its shaft hole near the rotating box (13) of the material rack; the rotating shaft (31) has a second bearing (38) at the part corresponding to the second step, and the second bearing (38) is an axial load rolling bearing.

5. The unwinding device with alternating feeding at both ends according to claim 2, characterized in that, The rotating mechanism (30) is also provided with a positioning component (40) for locking the rotation state of the rotating box (13) of the material rack; the positioning component (40) is provided with a positioning sleeve (41), a positioning pin (42) and a positioning actuator (43); the positioning sleeve (41) is fixed to the rotating plate (35), one end of the positioning pin (42) is connected to the output end of the positioning actuator (43), and the other end passes through the positioning sleeve (41) and extends towards the rotating box (13) of the material rack, for inserting into the guide flange (14) of the rotating box (13) of the material rack, and cooperates with the guide flange (14) to lock the rotating box (13) of the material rack.

6. The dual end alternating feed pickling installation according to claim 5, characterized in that The positioning assembly (40) is also provided with a positioning adapter plate (44), positioning guide posts (45) and positioning spring (46); the bottom of the positioning adapter plate (44) is fixed to the output end of the positioning actuator (43) in the vertical direction, and the top is connected to the positioning pin (42); the two ends of the positioning adapter plate (44) in the horizontal direction are respectively provided with guide holes, one end of the two positioning guide posts (45) is inserted into the guide hole to form a sliding connection, and the other end is fixed to the rotating support plate (35); the positioning spring (46) is sleeved on the positioning pin (42), and its two ends abut against the positioning adapter plate (44) and the positioning sleeve (41) respectively, and is used to drive the positioning pin (42) to move away from the rotating box (13) of the material rack, so that the positioning pin (42) is withdrawn from the guide flange (14) and the locking of the rotating box (13) of the material rack is released.

7. The dual end alternating feed open mill apparatus of claim 1, wherein, The drum assembly (20) is provided with a first drum group (21) and a second drum group (22), which are respectively mounted on both sides of the material rack rotating box (13); the drum spindles (23) of the first drum group (21) and the second drum group (22) are set with different shaft structures, and the length of the drum spindle (23) inserted into the material rack rotating box (13) is greater than half the width of the material rack rotating box (13) along the extension direction of the drum spindle (23).

8. The dual end alternating feed open mill apparatus of claim 1, wherein, The roll assembly (20) is further provided with a pressure arm device (50) for pressing the material roll (70); the pressure arm device (50) is provided with a pressure arm (51), a pressure arm shaft (53), a pressure arm bracket (54), a pressure arm actuator (55), and a pressure arm connecting rod (56); the pressure arm bracket (54) is fixedly connected to the material rack rotating box (13), one end of the pressure arm shaft (53) is rotatably connected to the pressure arm bracket (54), and the other end is parallel to the roll main shaft (23) and towards the material roll. The roll (70) extends in the direction of the material and is fixed to one end of the pressing arm (51); the other end of the pressing arm (51) presses the roll (70) through the pressing roller (52); the pressing arm actuator (55) is connected to the rotating box (13) of the material rack, and its output end is connected to one end of the pressing arm connecting rod (56). The other end of the pressing arm connecting rod (56) is fixed to the pressing arm shaft (53) to drive the pressing arm shaft (53) to rotate, so that the pressing arm (51) rotates synchronously to achieve pressing.

9. The dual end alternating feed open mill apparatus of claim 1, wherein, The loading trolley (60) is provided with a trolley guide rail (61), a trolley frame (62), a drive wheel set (63), a driven wheel set (64), and a trolley actuator (65). The trolley guide rail (61) is mounted on the ground along the extension direction of the drum spindle (23). The drive wheel set (63) and the driven wheel set (64) are respectively mounted on the bottom of the trolley frame (62) to move the trolley frame (62) along the trolley guide rail (61). The trolley actuator (65) is installed on the trolley frame (62) and is connected to the drive wheel set (63) for driving the drive wheel set (63) and the trolley frame (62) to move along the trolley guide rail (61).

10. The double-end alternating feeding unwinding device according to claim 9, characterized in that, The loading trolley (60) is also provided with a loading seat (66), a guide structure and a loading actuator (67); the loading seat (66) is used to carry the material roll (70) and is installed on the trolley frame (62) through the guide structure, and can slide vertically along the trolley frame (62); the guide structure is provided with a guide sleeve (68) and a guide post (69), the loading actuator (67) and the guide sleeve (68) are respectively installed on the top of the trolley frame (62), one end of the guide post (69) is fixed to the bottom of the loading seat (66), and the other end passes into the guide sleeve (68) to form a guide fit; the output end of the loading actuator (67) is connected to the bottom of the loading seat (66) for driving the loading seat (66) to move vertically.

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