A four-head coil reel for a silicon steel sheet horizontal shearing line

Abstract

The present invention discloses a four-head unwinding rack for a silicon steel sheet horizontal shearing line, belonging to the technical field of unwinding racks. The four-head unwinding rack for the silicon steel sheet horizontal shearing line includes a support mechanism, a rotary replacement mechanism is installed on the top of the support mechanism, and a mounting and fixing mechanism is fixedly connected to the top of the rotary replacement mechanism; a plurality of groups of automatic expansion holding mechanisms are installed on the periphery of the mounting and fixing mechanism for clamping and fixing silicon steel coils; an automatic lifting mechanism is installed between the support mechanism and the mounting and fixing mechanism, and the top end of the automatic lifting mechanism is fixedly connected to a rotary unwinding mechanism; a coil lifting mechanism is also provided at the front end of the support mechanism. By adopting four groups of automatic expansion holding mechanisms for replacement use, the present invention avoids the phenomenon of multiple stops for feeding in the original process, ensures the continuity of production, and improves work efficiency; at the same time, under the speed regulation control of the driving motor, the uniform and stable feeding is ensured, and the phenomenon that the silicon steel sheets are prone to bending during the original feeding process is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of unwinding racks, and particularly relates to a four-head unwinding rack for a silicon steel sheet horizontal shearing line. Background Art

[0002] Silicon steel sheets generally refer to electrical steel, which is also known as silicon steel sheet. It is a silicon-iron soft magnetic alloy with an extremely low carbon content. This material has good magnetic conductivity and poor electrical conductivity. By using the silicon steel material with poor electrical conductivity to make the iron core, it is possible to avoid the phenomenon of short circuit caused by the closed circuit and further the heating of the circuit. Therefore, silicon steel sheets are widely used to make the iron cores of various transformers, motors, and generators.

[0003] Horizontal shearing lines and vertical shearing lines are common shearing methods in the production process of silicon steel sheets. A horizontal shearing line means that the silicon steel sheets are cut transversely according to certain specifications and dimensions. The cut silicon steel sheets can be used to make the iron cores of motors and transformers.

[0004] Currently, in the transformer iron core production workshop, there are often a large amount of silicon steel coil materials unloaded from the vertical shearing line. The diameter of the silicon steel coil materials is large and the quality is also large. When loading the materials at the horizontal shearing line, the replacement and loading of the silicon steel coil materials basically rely on manual hoisting. Due to the instability of manual hoisting and the low hoisting accuracy, it takes a certain amount of time to complete the loading operation each time. Moreover, the existing unwinding racks for silicon steel sheet horizontal shearing lines can only place one roll of sheet materials at a time. When replacing after each use, the machine needs to be stopped for replacement. Therefore, the continuity of production is affected and the labor intensity of workers is increased. In addition, during the feeding process, the diameter of the silicon steel coil materials decreases with the feeding process, resulting in inconsistent discharging speeds of the reels after the diameter change and the feeding speed of the horizontal shearing line. And during the feeding process, the silicon steel sheets may be bent due to a large amount of spinning out and piling up in the buffer area. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a four-head unwinding rack for a silicon steel sheet horizontal shearing line.

[0006] The technical solution adopted to solve the above technical problem is: a four-head unwinding rack for a silicon steel sheet horizontal shearing line, including a support mechanism. The support mechanism includes a support frame, a fixed frame is fixedly connected to the top of the support frame. A rotary replacement mechanism is installed on the top of the support mechanism, and an installation and fixing mechanism is fixedly connected to the top of the rotary replacement mechanism;

[0007] A plurality of automatic expansion holding mechanisms are installed on the periphery of the installation and fixing mechanism for clamping and fixing the silicon steel coil materials;

[0008] An automatic lifting mechanism is installed between the support mechanism and the installation and fixing mechanism, and a rotary feeding mechanism is fixedly connected to the top end of the automatic lifting mechanism;

[0009] A coil lifting mechanism is also provided at the rear end of the support mechanism for lifting the silicon steel coil so as to sleeved the silicon steel coil on the corresponding automatic expansion holding mechanism.

[0010] Furthermore, a maintenance hole is provided at the front end of the support frame, so that the rotation replacement mechanism and the automatic lifting mechanism can be maintained and repaired daily through the maintenance hole.

[0011] Furthermore, the rotation replacement mechanism includes a first bearing installed on the outside of the fixed frame. An internal gear ring is also fixedly installed on the outside of the first bearing. A driving motor is installed on the inner surface of the top of the support frame, and the top end of the output shaft of the driving motor is installed with a driving gear meshing with the internal gear ring.

[0012] Through the above technical solution, the internal gear ring, the installation and fixing mechanism at the top, and the multiple groups of automatic expansion holding mechanisms rotate driven by the driving motor, so as to change the working positions of the four groups of automatic expansion holding mechanisms. Specifically, when the silicon steel coil on the working position has completed discharging, the driving motor will start to work, and drive the driving gear to rotate synchronously through its output shaft. When the driving gear rotates, it can drive the internal gear ring meshing with it to rotate 90 degrees, so as to rotate a group of automatic expansion holding mechanisms at the adjacent position to the working position, thus realizing the rapid automatic replacement of the new coil, and greatly shortening the time required for coil replacement.

[0013] Furthermore, the installation and fixing mechanism includes a fixing plate fixed on the top of the rotation replacement mechanism. The top of the fixing plate is fixedly connected with a four-head bracket. The top of the four-head bracket is fixedly connected with a top cover plate. A plurality of corresponding through holes are provided on the circumferential side inside the four-head bracket.

[0014] Through the above technical solution, the installation and fixing mechanism, as the installation and support structure, is mainly used for the installation and fixing of the four groups of automatic expansion holding mechanisms. At the same time, driven by the rotation of the rotation replacement mechanism, the four-head bracket can drive the four groups of automatic expansion holding mechanisms to rotate at a certain angle according to the set program, thus realizing the function of automatic coil replacement.

[0015] Further, the automatic expansion and holding mechanism includes a side mounting plate fixedly connected to the end of the installation and fixing mechanism. An installation support is fixedly connected to the outside of the side mounting plate. A second bearing is installed on the installation support. An external gear ring is fixedly installed on the outer ring of the second bearing. An inner mounting plate is fixedly connected to the outside of the external gear ring. A hollow shaft is fixedly connected to the center of the outside of the inner mounting plate. A plurality of rectangular holes are provided on the circumferential side of the hollow shaft. An end fixing seat is fixedly installed at the other end of the hollow shaft. A through limiting hole is provided in the middle of the end fixing seat. A clamping hydraulic cylinder is installed on the inner side of the side mounting plate. The telescopic end of the clamping hydraulic cylinder is fixedly connected to a first rotary connection component. The other end of the first rotary connection component is rotatably connected to a fixed shaft. A plurality of first rotating supports are fixedly connected to the circumferential side of the outer wall of the fixed shaft. A connecting rod is rotatably connected to each first rotating support. A plurality of arc-shaped expanding claws are provided outside the hollow shaft. Two second rotating supports are provided on the inner side of each arc-shaped expanding claw. The other end of each connecting rod is rotatably connected to the corresponding second rotating support.

[0016] Through the above technical solution, the automatic expansion and holding mechanism is mainly used for automatically clamping and fixing the silicon steel coil. After the operator sleeved the silicon steel coil outside a plurality of arc-shaped expanding claws, the piston rod of the clamping hydraulic cylinder will automatically extend outwards, and then synchronously drive the fixed shaft to slide in the limiting hole. During this process, the fixed shaft will also drive a plurality of connecting rods to rotate, thereby synchronously driving a plurality of arc-shaped expanding claws to expand outwards until the inner holes of the silicon steel coil are clamped by the plurality of arc-shaped expanding claws, so as to realize the feeding and fixing of the silicon steel coil; when the discharging of the silicon steel coil at the working position is completed, the piston rod of the clamping hydraulic cylinder will automatically contract, so that the plurality of arc-shaped expanding claws will also automatically contract inwards at the same time, so that the coil shaft sleeve sleeved outside the plurality of arc-shaped expanding claws can be conveniently removed for subsequent replacement of a new silicon steel coil; after the automatic expansion and holding mechanism after feeding is rotated to the working position, the automatic lifting mechanism will drive the rotary discharging mechanism to spiral downwards, and make the discharging gear on the rotary discharging mechanism mesh with the external gear ring. At this time, when the discharging gear rotates, it will drive the meshed external gear ring to rotate. Since structures such as the inner mounting plate and the hollow shaft are fixed on the external gear ring, the external gear ring can drive the silicon steel coil to discharge slowly. Since the telescopic end of the clamping hydraulic cylinder is connected to the fixed shaft through the first rotary connection component, the clamping hydraulic cylinder will not rotate with the silicon steel coil. In addition, under the speed regulation control of the discharging motor, the discharging amount and tension of the coil can be controlled and adjusted to meet the process requirements of relatively stable output with the change of the coil diameter. During the feeding process, it can effectively avoid phenomena such as bending of the silicon steel sheets due to a large amount of spinning out and accumulation in the buffer area.

[0017] Further, the number of each group of rectangular holes is two, and each connecting rod respectively penetrates through the corresponding rectangular hole.

[0018] Through the above technical solution, the connecting rod passes through the corresponding rectangular hole, which facilitates the sliding of the connecting rod. At the same time, the rectangular hole can also play a limiting role on the connecting rod.

[0019] Furthermore, the automatic lifting mechanism includes a first lifting hydraulic cylinder installed in the support frame and a limit seat fixedly installed at the center of the top of the support frame. The top end of the piston rod of the first lifting hydraulic cylinder is fixedly connected with a second rotary connection assembly. The top end of the second rotary connection assembly is rotatably connected with a rotary lifting shaft. Two spiral grooves are formed on the outer wall of the rotary lifting shaft. A ball head bolt is threadedly connected to the outer wall of the limit seat. The top end of the rotary lifting shaft is fixedly connected with a support block.

[0020] Through the above technical solution, the automatic lifting mechanism is mainly used to drive the rotary feeding mechanism to perform spiral lifting. When a new silicon steel coil rotates to the feeding position, the piston rod of the first lifting hydraulic cylinder will slowly contract, and then it can drive the rotary lifting shaft to descend synchronously. At the same time, since two spiral grooves are formed on the outer wall of the rotary lifting shaft and the ball head bolts threadedly connected to the outer wall of the limit seat are limited in the corresponding spiral grooves, under the limiting action of the two ball head bolts, the rotary lifting shaft will rotate along the two spiral grooves during the descending process, so that the rotary feeding mechanism can realize rotary descent, and the feeding gear installed at the output end of the feeding motor can freely fit with the external gear ring in an arc shape, effectively avoiding the linear impact structure between the two gears, thereby prolonging the service life of the gears.

[0021] Furthermore, the rotary feeding mechanism includes a support plate fixed to the top end of the automatic lifting mechanism. A feeding motor is installed on one side of the front end of the top of the support plate. A feeding gear is installed at the output end of the feeding motor. The feeding gear can be meshed with the external gear ring at the corresponding position during the working state.

[0022] Through the above technical solution, the rotary feeding mechanism is mainly used to drive the automatic expanding and holding mechanism at the working position to perform rotary feeding. The four groups of automatic expanding and holding mechanisms are only driven by one feeding motor, thereby effectively reducing the energy consumption and the maintenance and operation costs. Specifically, when a new coil rotates in place, the support plate and the feeding motor fixed on the top of the support block will descend synchronously with the rotary lifting shaft. During the rotary descent process, the feeding gear will slowly and freely fit with the external gear ring in an arc shape, which can not only achieve safe and rapid meshing, but also effectively avoid the impact between the two gears. During subsequent feeding, the feeding motor drives the feeding gear to rotate. The feeding motor adopts a servo reduction motor, and the feeding volume and tension of the coil can be controlled and adjusted through intelligent speed regulation control, so as to further drive the silicon steel coil to perform stable automatic feeding.

[0023] Furthermore, the coil lifting mechanism includes a lifting base. On both sides of the inner wall of the lifting base, there are two lifting slide rails. A lifting seat is slidably connected inside the lifting base. On both sides of the outer wall of the lifting seat, there are two corresponding lifting chutes. On both sides of the top of the lifting seat, there are horizontally installed slide rails. A horizontal slide seat is slidably connected between the two horizontal slide rails. A detachable coil positioning seat is installed on the horizontal slide seat. On both sides of the outer wall of the coil positioning seat, there are fixedly connected handles. At the top of the center of the lifting base, there is a second lifting hydraulic cylinder. The top of the piston rod of the second lifting hydraulic cylinder is in contact with the inner surface of the top of the lifting seat.

[0024] Through the above technical solution, since the quality of the silicon steel coil is relatively heavy, it is not only difficult to operate but also time-consuming and laborious to directly and accurately sleeve the silicon steel coil on the automatic expansion holding mechanism by using the traditional hoisting method, and the efficiency is low. By designing the coil lifting mechanism, during actual operation, the silicon steel coil can be hoisted by a hoisting device and placed on the coil positioning seat first. Then, according to the position of the central hole, control the piston rod of the second lifting hydraulic cylinder to jack up the lifting seat. When the central hole of the silicon steel coil is roughly concentric with the axis of the automatic expansion holding mechanism, the silicon steel coil can be pushed towards the automatic expansion holding mechanism along the two horizontal slide rails and sleeved on the outer walls of a plurality of arc-shaped expansion claws. After being placed in place, the second lifting hydraulic cylinder can be controlled to reset.

[0025] Furthermore, a circular arc-shaped positioning groove is provided at the top of the coil positioning seat.

[0026] Through the above technical solution, the circular arc-shaped positioning groove can play a role in stably supporting and positioning the coiled silicon steel coil to prevent it from shaking or displacing during the feeding process.

[0027] The beneficial effects of the present invention are as follows: (1) By using four groups of automatic expansion and holding mechanisms for replacement, the present invention avoids the phenomenon of multiple stops for feeding in the original process, ensures the continuity of production, and improves work efficiency. At the same time, under the speed regulation control of the driving motor, the uniformity and stability of feeding are ensured, and the phenomenon that silicon steel sheets are prone to bending during the original feeding process is avoided. (2) By adopting a spiral automatic lifting structure, under the limiting action of two ball head bolts, the rotating lifting shaft rotates along two spiral grooves during the descending process, enabling the feeding gear to achieve an arc free fit with the external gear ring, effectively avoiding the linear impact structure between the two gears, and thus extending the service life of the gears. (3) The four-head feeding rack of the present invention changes the drawback that traditional equipment requires 4 speed reducers to provide power separately. The four heads are only driven by one driving motor, greatly reducing energy consumption and maintenance operation costs. Moreover, this equipment occupies a small area, facilitating the installation and layout of the equipment, and at the same time can also meet the requirements of automated intelligent production processes. (4) By designing a coil lifting mechanism, the silicon steel coil can be more conveniently and quickly and accurately sleeved on the automatic expansion and holding mechanism, not only greatly reducing the operation difficulty, but also making the operation more time-saving and labor-saving, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the first perspective structure diagram of the present invention;

[0029] Figure 2 is the second perspective structure diagram of the present invention;

[0030] Figure 3 is the schematic diagram of the main structure of the present invention;

[0031] Figure 4 is the front view of the present invention;

[0032] Figure 5 is Figure 4 the sectional view taken along the line A-A in

[0033] Figure 6 is Figure 5 the partial enlarged view at A in

[0034] Figure 7 is the schematic diagram of the structure of the installation and fixing mechanism of the present invention;

[0035] Figure 8 is the schematic diagram of the structure of the rotating replacement mechanism of the present invention;

[0036] Figure 9 is the first perspective structure diagram of the automatic expansion and holding mechanism of the present invention;

[0037] Figure 10 is the second perspective structure diagram of the automatic expansion and holding mechanism of the present invention;

[0038] Figure 11 is a cross-sectional view of the automatic expanding and holding mechanism of the present invention;

[0039] Figure 12 is a schematic structural view of the automatic lifting mechanism of the present invention;

[0040] Figure 13 is a cross-sectional view of the automatic lifting mechanism of the present invention;

[0041] Figure 14 is a schematic structural view of the coil lifting mechanism of the present invention.

[0042] Reference numerals: 1, support mechanism; 101, support frame; 102, fixed frame; 103, inspection hole; 2, rotary replacement mechanism; 201, first bearing; 202, internal gear ring; 203, drive motor; 204, drive gear; 3, installation and fixing mechanism; 301, fixing plate; 302, four-head bracket; 303, top cover plate; 304, through hole; 4, automatic expanding and holding mechanism; 401, side mounting plate; 402, mounting seat; 403, second bearing; 404, external gear ring; 405, internal mounting plate; 406, hollow shaft; 407, rectangular hole; 408, end fixing seat; 409, limit hole; 410, clamping hydraulic cylinder; 411, first rotary connection assembly; 412, fixed shaft; 413, first rotating support; 414, connecting rod; 415, arc-shaped expansion claw; 416, second rotating support; 5, automatic lifting mechanism; 501, first lifting hydraulic cylinder; 502, limit seat; 503, second rotary connection assembly; 504, rotary lifting shaft; 505, spiral groove; 506, ball head bolt; 507, support block; 6, rotary feeding mechanism; 601, support plate; 602, feeding motor; 603, feeding gear; 7, coil lifting mechanism; 701, lifting base; 702, lifting slide rail; 703, lifting seat; 704, lifting chute; 705, horizontal slide rail; 706, horizontal slide seat; 707, coil positioning seat; 708, handle; 709, second lifting hydraulic cylinder. Detailed implementation manners

[0043] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0044] As Figures 1 - 14As shown in the figure, a four-head unwinding rack for a silicon steel sheet horizontal shearing line in this embodiment includes a support mechanism 1. The support mechanism 1 includes a support frame 101. A fixed frame 102 is fixedly connected to the top of the support frame 101. A maintenance hole 103 is provided at the front end of the support frame 101, so that the rotation replacement mechanism 2 and the automatic lifting mechanism 5 can be maintained and repaired daily through the maintenance hole 103.

[0045] As Figures 5 - 8 shown in the figure, a rotation replacement mechanism 2 is installed on the top of the support mechanism 1. The rotation replacement mechanism 2 includes a first bearing 201 installed on the outside of the fixed frame 102. An internal gear ring 202 is also fixedly installed on the outside of the first bearing 201. A driving motor 203 is installed on the inner surface of the top of the support frame 101. The top of the output shaft of the driving motor 203 is installed with a driving gear 204 meshing with the internal gear ring 202. The internal gear ring 202 and the installation and fixing mechanism 3 and multiple groups of automatic expansion mechanisms 4 on the top rotate under the drive of the driving motor 203, so as to change the working positions of the four groups of automatic expansion mechanisms 4. Specifically, when the silicon steel coil unwinding at the working position is completed, the driving motor 203 will start to work, and then drive the driving gear 204 to rotate synchronously through its output shaft. When the driving gear 204 rotates, it can drive the meshing internal gear ring 202 to rotate 90 degrees, so as to rotate a group of automatic expansion mechanisms 4 at the adjacent position to the working position, thus realizing the rapid automatic replacement of the new coil, and greatly shortening the time required for coil replacement.

[0046] As Figures 5 - 8 shown in the figure, an installation and fixing mechanism 3 is fixedly connected to the top of the rotation replacement mechanism 2. The installation and fixing mechanism 3 includes a fixing plate 301 fixed to the top of the rotation replacement mechanism 2. A four-head support 302 is fixedly connected to the top of the fixing plate 301. A top cover plate 303 is fixedly connected to the top of the four-head support 302. A plurality of corresponding through holes 304 are provided on the peripheral side inside the four-head support 302. The installation and fixing mechanism 3, as an installation and support structure, is mainly used for the installation and fixing of the four groups of automatic expansion mechanisms 4. At the same time, under the rotation drive of the rotation replacement mechanism 2, the four-head support 302 can drive the four groups of automatic expansion mechanisms 4 to rotate at a certain angle according to a set program, thus realizing the function of automatic coil replacement.

[0047] As Figures 1 - 11As shown in the figure, multiple sets of automatic expansion and holding mechanisms 4 are installed on the periphery of the installation and fixing mechanism 3, specifically four sets. The automatic expansion and holding mechanism 4 includes a side mounting plate 401 fixedly connected to the end of the installation and fixing mechanism 3. An installation support 402 is fixedly connected to the outside of the side mounting plate 401. A second bearing 403 is installed on the installation support 402. An external gear ring 404 is fixedly installed on the outer ring of the second bearing 403. An inner mounting plate 405 is fixedly connected to the outside of the external gear ring 404. A hollow shaft 406 is fixedly connected to the center of the outside of the inner mounting plate 405. Multiple rectangular holes 407 are provided on the periphery of the hollow shaft 406. An end fixing seat 408 is fixedly installed at the other end of the hollow shaft 406. A through limiting hole 409 is provided in the middle of the end fixing seat 408. A clamping hydraulic cylinder 410 is installed on the inner side of the side mounting plate 401. The telescopic end of the clamping hydraulic cylinder 410 is fixedly connected to a first rotary connection assembly 411. The other end of the first rotary connection assembly 411 is rotatably connected to a fixed shaft 412. Multiple first rotating supports 413 are fixedly connected to the outer periphery of the fixed shaft 412. A connecting rod 414 is rotatably connected to each first rotating support 413. Multiple arc-shaped expansion claws 415 are provided outside the hollow shaft 406. Two second rotating supports 416 are provided on the inner side of each arc-shaped expansion claw 415. The other end of each connecting rod 414 is rotatably connected to the corresponding second rotating support 416. The automatic expansion and holding mechanism 4 is mainly used for automatically clamping and fixing the silicon steel coil. After the operator sleeves the silicon steel coil outside multiple arc-shaped expansion claws 415, the piston rod of the clamping hydraulic cylinder 410 will automatically extend outwards, and then synchronously drive the fixed shaft 412 to slide in the limiting hole 409. During this process, the fixed shaft 412 will also drive multiple connecting rods 414 to rotate, so as to synchronously drive multiple arc-shaped expansion claws 415 to expand outwards until multiple arc-shaped expansion claws 415 clamp the inner hole of the silicon steel coil, thereby realizing the feeding and fixing of the silicon steel coil; when the discharging of the silicon steel coil at the working position is completed, the piston rod of the clamping hydraulic cylinder 410 will automatically contract, so that multiple arc-shaped expansion claws 415 will also automatically contract inwards at the same time, so that the coil shaft sleeve sleeved outside multiple arc-shaped expansion claws 415 can be conveniently removed for subsequent replacement of a new silicon steel coil;

[0048] Furthermore, in this embodiment, after the automatic expansion and holding mechanism 4 rotates to the working position after the feeding is completed, the automatic lifting mechanism 5 drives the rotary feeding mechanism 6 to descend spirally, and makes the feeding gear 603 on the rotary feeding mechanism 6 engage with the external gear ring 404. At this time, when the feeding gear 603 rotates, it drives the engaged external gear ring 404 to rotate. Structures such as the inner mounting plate 405 and the hollow shaft 406 are fixed on the external gear ring 404, so that the external gear ring 404 can drive the silicon steel coil to feed slowly. Since the telescopic end of the clamping hydraulic cylinder 410 is connected to the fixed shaft 412 through the first rotary connection assembly 411, the clamping hydraulic cylinder 410 does not rotate with the silicon steel coil. In addition, under the speed control of the feeding motor 602, the feeding amount and tension of the coil can be controlled and adjusted to meet the process requirements of relatively stable output with the change of the coil diameter. During the feeding process, it can effectively avoid phenomena such as bending of the silicon steel sheets due to a large amount of the silicon steel sheets spinning out and piling up in the buffer area.

[0049] Furthermore, in this embodiment, the number of each group of rectangular holes 407 is two, and each connecting rod 414 penetrates through the corresponding rectangular hole 407 respectively. The connecting rod 414 penetrating through the corresponding rectangular hole 407 facilitates the sliding of the connecting rod 414, and at the same time, the rectangular hole 407 can also play a limiting role on the connecting rod 414.

[0050] As Figures 4 - 13 shown, an automatic lifting mechanism 5 is installed between the support mechanism 1 and the installation and fixing mechanism 3. The automatic lifting mechanism 5 includes a first lifting hydraulic cylinder 501 installed in the support frame 101 and a limit seat 502 fixedly installed at the center of the top of the support frame 101. The top end of the piston rod of the first lifting hydraulic cylinder 501 is fixedly connected with a second rotary connection assembly 503. The top end of the second rotary connection assembly 503 is rotatably connected with a rotary lifting shaft 504. Two spiral grooves 505 are formed on the outer wall of the rotary lifting shaft 504. A ball head bolt 506 is threadedly connected to the outer wall of the limit seat 502. The top end of the rotary lifting shaft 504 is fixedly connected with a support block 507. The automatic lifting mechanism 5 is mainly used to drive the rotary feeding mechanism 6 to lift and lower spirally. After the new silicon steel coil rotates to the feeding position, the piston rod of the first lifting hydraulic cylinder 501 will slowly contract, and then it can drive the rotary lifting shaft 504 to descend synchronously. At the same time, since two spiral grooves 505 are formed on the outer wall of the rotary lifting shaft 504, and the ball head bolts 506 threadedly connected to the outer wall of the limit seat 502 are limited in the corresponding spiral grooves 505, under the limiting action of the two ball head bolts 506, the rotary lifting shaft 504 rotates along the two spiral grooves 505 during the descending process, so that the rotary feeding mechanism 6 can realize rotary descent, and the feeding gear 603 installed at the output end of the feeding motor 602 can be in arc free fit with the external gear ring 404, effectively avoiding the straight impact structure between the two gears, thereby prolonging the service life of the gears.

[0051] As Figures 1 - 3 shown, a rotary feeding mechanism 6 is fixedly connected to the top end of the automatic lifting mechanism 5. The rotary feeding mechanism 6 includes a support plate 601 fixed to the top end of the automatic lifting mechanism 5. On one side of the front end of the top of the support plate 601, a feeding motor 602 is installed. The output end of the feeding motor 602 is equipped with a feeding gear 603. The feeding gear 603 can be engaged with the external gear ring 404 at the corresponding position in the working state. The rotary feeding mechanism 6 is mainly used to drive the automatic expanding and holding mechanism 4 at the working position to rotate and feed. The four groups of automatic expanding and holding mechanisms 4 are only driven by one feeding motor 602, thus effectively reducing the energy consumption and the maintenance and operation costs. Specifically, when the new coil rotates into place, the support plate 601 and the feeding motor 602 fixed on the top of the support block 507 will descend synchronously with the rotary lifting shaft 504. During the rotary descent, the feeding gear 603 will slowly achieve an arc free fit with the external gear ring 404, which can not only achieve safe and rapid engagement, but also effectively avoid the impact of the two gears. During subsequent feeding, the feeding motor 602 drives the feeding gear 603 to rotate. The feeding motor 602 adopts a servo reduction motor, and the feeding amount and tension of the coil can be controlled and adjusted under the intelligent speed regulation control, so as to further drive the silicon steel coil to perform stable automatic feeding.

[0052] As Figure 2 and Figure 14As shown in the figure, a coil lifting mechanism 7 is further provided at the rear end of the support mechanism 1, which is used to lift the silicon steel coil so as to sleeved the silicon steel coil on the corresponding automatic expansion holding mechanism 4. The coil lifting mechanism 7 includes a lifting base 701. Two lifting slide rails 702 are provided on both sides of the inner wall of the lifting base 701. A lifting seat 703 is slidably connected in the lifting base 701. Two corresponding lifting chutes 704 are opened on both sides of the outer wall of the lifting seat 703. Horizontal slide rails 705 are fixedly installed on both sides of the top of the lifting seat 703. A horizontal slide seat 706 is slidably connected between the two horizontal slide rails 705. A detachable coil positioning seat 707 is installed on the horizontal slide seat 706. Handles 708 are fixedly connected to both sides of the outer wall of the coil positioning seat 707. A second lifting hydraulic cylinder 709 is installed at the top of the center of the lifting base 701. The top end of the piston rod of the second lifting hydraulic cylinder 709 is in contact with the inner surface of the top of the lifting seat 703. Since the quality of the silicon steel coil is relatively heavy, it is not only difficult to operate but also very time-consuming and laborious and inefficient to directly and accurately sleeve the silicon steel coil on the automatic expansion holding mechanism 4 by using the traditional hoisting method. By designing the coil lifting mechanism 7, during actual operation, the silicon steel coil can be hoisted by a hoisting device and placed on the coil positioning seat 707 first, and then according to the position of the center hole, the piston rod of the second lifting hydraulic cylinder 709 is controlled to jack up the lifting seat 703. When the center hole of the silicon steel coil is roughly concentric with the axis of the automatic expansion holding mechanism 4, the silicon steel coil can be pushed towards the automatic expansion holding mechanism 4 along the two horizontal slide rails 705 and sleeved on the outer walls of a plurality of arc-shaped expansion claws 415. After being placed in place, the second lifting hydraulic cylinder 709 can be controlled to reset.

[0053] In this embodiment, further, a circular arc-shaped positioning groove is provided at the top of the coil positioning seat 707. The circular arc-shaped positioning groove can play a role in stably supporting and positioning the coiled silicon steel coil to prevent it from shaking or displacing during the feeding process.

[0054] Further, the coil lifting mechanism 7 can also be installed at the two side positions according to the actual production needs or the on-site layout requirements, and can be freely adjusted according to the actual situation. In addition, since the overall quality of the silicon steel coil is relatively heavy, in order to further reduce the working intensity of the operator, an automatic propulsion mechanism can also be designed on the lifting seat 703, so as to be able to push the silicon steel coil to the designated position instead of manual labor.

[0055] In this embodiment, further, the four-head unwinding rack of the present invention changes the drawback that the traditional equipment requires 4 speed reducers to provide power separately. Moreover, the equipment occupies a small area, which is convenient for the installation and layout of the equipment, and can also meet the requirements of the automated intelligent production process.

[0056] The working principle of this embodiment is as follows. After the silicon steel coil at the working position is completely unwound, the first lifting hydraulic cylinder 501 drives the rotary unwinding mechanism 6 to rise spirally, so that the unwinding gear 603 is slowly separated from the corresponding external gear ring 404. After the rotary unwinding mechanism 6 rises to the designated position, it sends a signal to the information processing center, and the information processing center provides an instruction to the rotary replacement mechanism 2. The rotary replacement mechanism 2 starts to rotate, thereby driving a set of automatic holding mechanisms 4 at the adjacent position and the new silicon steel coil to rotate to the working position;

[0057] After the new silicon steel coil rotates into place, the automatic lifting mechanism 5 drives the rotary unwinding mechanism 6 to descend spirally, and makes the unwinding gear 603 on the rotary unwinding mechanism 6 engage with the external gear ring 404. When the unwinding gear 603 rotates, it drives the engaged external gear ring 404 to rotate, so that the external gear ring 404 can drive the silicon steel coil to unwind slowly;

[0058] During the unwinding process, the operator can use the coil lifting mechanism 7 to prepare a new coil behind the equipment. During operation, the silicon steel coil can be lifted and placed on the coil positioning seat 707 by a hoisting device, and then, according to the position of the center hole, the operator controls the piston rod of the second lifting hydraulic cylinder 709 to jack up the lifting seat 703 upward. When the center hole of the silicon steel coil is roughly concentric with the axis of the automatic holding mechanism 4, the silicon steel coil can be pushed towards the automatic holding mechanism 4 along the two horizontal slide rails 705, and the outer wall of the silicon steel coil is sleeved on multiple arc-shaped claws 415. By replacing the use of the four groups of automatic holding mechanisms 4, the phenomenon of multiple stops for feeding in the middle of the original process is effectively avoided, ensuring the continuity of production and improving work efficiency.

[0059] The above is only a preferred embodiment of the present invention, and is not intended to limit the protection scope of the present invention.

Claims

1. A four-head unwinding rack for a silicon steel sheet transverse shearing line, comprising a support mechanism (1), wherein the support mechanism (1) comprises a support frame (101), wherein a fixing frame (102) is fixedly connected to the top of the support frame (101), and wherein: A rotation replacement mechanism (2) is installed on the top of the support mechanism (1), and a mounting and fixing mechanism (3) is fixedly connected to the top of the rotation replacement mechanism (2); A plurality of sets of automatic expansion and holding mechanisms (4) are installed on the peripheral side of the installation and fixing mechanism (3) for clamping and fixing the silicon steel coil; the automatic expansion and holding mechanism (4) comprises a side installation plate (401) fixedly connected to the end of the installation and fixing mechanism (3); a mounting support (402) is fixedly connected to the outer side of the side installation plate (401); a second bearing (403) is installed on the mounting support (402); an outer gear ring (404) is fixedly installed on the outer ring of the second bearing (403); An automatic lifting mechanism (5) is installed between the support mechanism (1) and the installation and fixing mechanism (3), and a rotating material discharge mechanism (6) is fixedly connected to the top of the automatic lifting mechanism (5); The automatic lifting mechanism (5) comprises a first lifting hydraulic cylinder (501) installed in a support frame (101) and a limit seat (502) fixedly installed at the top center of the support frame (101); the top end of the piston rod of the first lifting hydraulic cylinder (501) is fixedly connected to a second rotating connection component (503); the top end of the second rotating connection component (503) is rotatably connected to a rotating lifting shaft (504); the outer wall of the rotating lifting shaft (504) is provided with two spiral grooves (505); a ball head bolt (506) is threadedly connected to the outer wall of the limit seat (502); and the top end of the rotating lifting shaft (504) is fixedly connected to a support block (507); The rotary unloading mechanism (6) comprises a support plate (601) fixed to the top of the automatic lifting mechanism (5); a unloading motor (602) is installed on one side of the front end of the top of the support plate (601); an unloading gear (603) is installed at the output end of the unloading motor (602); and the unloading gear (603) can mesh with an outer gear ring (404) at a corresponding position in a working state; The support mechanism (1) is also provided with a coil lifting mechanism (7) at the rear end thereof, which is used to lift the silicon steel coil so as to allow the silicon steel coil to be sleeved onto the corresponding automatic expansion and holding mechanism (4).

2. The four-head unwinding rack for silicon steel sheet transverse shearing line according to claim 1 is characterized in that: The front end of the supporting frame (101) is provided with an inspection hole (103).

3. The four-head unwinding rack for silicon steel sheet transverse shearing line according to claim 1 is characterized in that: The rotation replacement mechanism (2) comprises a first bearing (201) mounted on the outside of a fixed frame (102), an inner gear ring (202) being fixedly mounted on the outside of the first bearing (201), a driving motor (203) being mounted on the inner surface of the top of the supporting frame (101), and a driving gear (204) meshing with the inner gear ring (202) being mounted on the top end of an output shaft of the driving motor (203).

4. The four-head unwinding rack for silicon steel sheet transverse shearing line according to claim 1 is characterized in that: The mounting and fixing mechanism (3) comprises a fixing plate (301) fixed to the top of the rotating and replacing mechanism (2); a four-head bracket (302) is fixedly connected to the top of the fixing plate (301); a top cover plate (303) is fixedly connected to the top of the four-head bracket (302); and a plurality of corresponding through holes (304) are provided on the inner circumference of the four-head bracket (302).

5. The four-head unwinding rack for silicon steel sheet transverse shearing line according to claim 1 is characterized in that: The outer side of the outer gear ring (404) is fixedly connected to an inner mounting plate (405), the outer center of the inner mounting plate (405) is fixedly connected to a hollow shaft (406), a plurality of groups of rectangular holes (407) are provided on the circumference of the hollow shaft (406), an end fixing seat (408) is fixedly installed on the other end of the hollow shaft (406), a through-limiting hole (409) is provided in the middle of the end fixing seat (408), a clamping hydraulic cylinder (410) is installed on the inner side of the side mounting plate (401), and the telescopic end of the clamping hydraulic cylinder (410) is fixedly connected to a first rotating connection The first rotating connection component (411) is rotatably connected to a fixed shaft (412) at the other end thereof; a plurality of first rotating supports (413) are fixedly connected to the outer wall of the fixed shaft (412); each of the first rotating supports (413) is rotatably connected to a connecting rod (414); a plurality of arc-shaped expansion claws (415) are arranged on the outer side of the hollow shaft (406); two second rotating supports (416) are arranged on the inner side of each of the arc-shaped expansion claws (415); and the other end of each of the connecting rods (414) is rotatably connected to a corresponding second rotating support (416).

6. The four-head unwinding rack for silicon steel sheet transverse shearing line according to claim 5, characterized in that: The number of each group of rectangular holes (407) is two, and each connecting rod (414) passes through a corresponding rectangular hole (407).

7. The four-head unwinding rack for silicon steel sheet transverse shearing line according to claim 1, characterized in that: The material roll lifting mechanism (7) comprises a lifting base (701), two lifting slide rails (702) are provided on both sides of the inner wall of the lifting base (701), a lifting seat (703) is slidably connected inside the lifting base (701), two corresponding lifting slide grooves (704) are provided on both sides of the outer wall of the lifting seat (703), horizontal slide rails (705) are fixedly installed on both sides of the top of the lifting seat (703), a horizontal slide seat (706) is slidably connected between the two horizontal slide rails (705), a detachable material roll positioning seat (707) is installed on the horizontal slide seat (706), and handles (708) are fixedly connected on both sides of the outer wall of the material roll positioning seat (707), and a second lifting hydraulic cylinder (709) is installed at the top of the center of the lifting base (701), and the top end of the piston rod of the second lifting hydraulic cylinder (709) is in contact with the inner surface of the top of the lifting seat (703).

8. The four-head unwinding rack for silicon steel sheet transverse shearing line according to claim 7, characterized in that: The top of the coil positioning seat (707) is provided with an arc-shaped positioning groove for supporting and positioning the silicon steel coil.

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