Annealing device suitable for aluminum coils of different specifications

Abstract

The invention provides an annealing device suitable for aluminum coils of different specifications, and relates to the technical field of aluminum product production equipment.The annealing device comprises a furnace body provided with a hearth, a furnace opening and a furnace door, an eccentric rod which is vertically arranged and rotates in a positioned mode is arranged in the hearth, and a plurality of layers of supporting discs which are coaxially and eccentrically installed on the eccentric rod in a rotating mode are arranged in the hearth; an aluminum coil is mounted on the upper end face of the supporting disc, and the outer diameter of the aluminum coil is sequentially increased from top to bottom; movable plates are symmetrically arranged on the two sides of the supporting disc, the lower ends of the movable plates are rotationally connected with the side wall, close to the movable plates, of the hearth when the movable plates are vertically and upwards arranged, and the rotating axes are perpendicular to the furnace door; the movable plate is matched with the supporting disc to divide the hearth into an upper sealed space and a lower sealed space when rotating to a horizontal state in the direction close to the supporting disc; a heating assembly is embedded in the side wall of the movable plate and located on the lower end face of the movable plate when the movable plate rotates to the horizontal state. According to the invention, aluminum coils of different specifications can be annealed at the same time, the annealing time is controlled according to the specifications of the aluminum coils, and the annealing quality of the aluminum coils of different specifications is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum material production equipment, and in particular to an annealing device suitable for aluminum coils of different specifications. Background Art

[0002] Aluminum and aluminum alloys are the most widely used nonferrous metal structural materials in industry, and have been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding, chemical industry, and daily necessities. In the production and processing of aluminum materials, annealing is an indispensable process, which can eliminate the residual stress in the aluminum strip and improve the tensile strength and mechanical properties of the aluminum strip.

[0003] In the prior art, aluminum coils are usually placed in an annealing device for annealing. Generally, several aluminum coils of the same specifications are annealed at the same time. According to the size of the aluminum coils, a corresponding number of aluminum coils can be annealed at one time. However, in the actual production process, the number of aluminum coils with the same outer diameter specifications is not always just right. There may be a few aluminum coils of each specification left. If aluminum coils of different specifications are annealed separately in multiple annealing devices, multiple annealing devices need to be opened, which greatly wastes energy and increases the annealing cost; if aluminum coils of different specifications are annealed in the same annealing device in sequence, on the one hand, each annealing will cause energy waste, and on the other hand, the annealing efficiency will be seriously affected; and if multiple aluminum coils of different specifications are placed in the same annealing device for annealing at the same time, the aluminum coils will be annealed unevenly due to the different sizes of the aluminum coils and the different annealing times. Long annealing time will cause over-annealing of small aluminum coils, and short annealing time will cause insufficient annealing of large aluminum coils, and the annealing quality of aluminum coils of different specifications cannot be guaranteed. Summary of the invention

[0004] The object of the present invention is to provide an annealing device suitable for aluminum coils of different specifications, which can anneal aluminum coils of different specifications at the same time, and control the annealing time according to the specifications of the aluminum coils to ensure the annealing uniformity and annealing quality of aluminum coils of different specifications, improve annealing efficiency, and reduce energy consumption and production costs.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] An annealing device suitable for aluminum coils of different specifications, comprising a vertically arranged furnace body with a furnace chamber inside, a furnace opening on one vertical side wall of the furnace body, and a furnace door cooperating with the furnace opening to open and close the furnace opening;

[0007] An eccentric rod is vertically arranged near the furnace mouth in the furnace chamber, and the eccentric rod is positioned and rotated around its axis and installed in the furnace chamber; a plurality of coaxial support plates are arranged up and down in the furnace chamber, and the axis of the support plate is vertically arranged, and the axis of the support plate and the axis of the eccentric rod are located on the symmetry plane of the inner wall of the furnace chamber on both sides of the furnace door; an eccentric block is integrally formed with the eccentric rod on the side wall of each support plate close to the eccentric rod, and the eccentric block is installed on the eccentric rod, and the eccentric rod drives the plurality of support plates to rotate eccentrically through the eccentric block; an aluminum coil coaxial with the support plate is installed on the upper end surface of each support plate, and the outer diameters of the aluminum coils installed on the plurality of support plates increase from top to bottom;

[0008] Both sides of the support plate of each layer are symmetrically provided with movable plates matching with it, and the movable plates on both sides of the support plate are respectively located on both sides of the furnace mouth, and the lower ends of the movable plates when they are arranged vertically upward are rotatably connected with the side walls of the furnace chamber close to them, and their rotation axes are arranged horizontally perpendicular to the furnace door; the movable plates on both sides of each layer of the support plate are provided with notches matching with the outer walls of the corresponding support plates, eccentric blocks and eccentric rods at one end away from their rotation axes, and when the movable plates are rotated to a horizontal state in a direction close to the corresponding support plates, the support plates are located in the notches of the movable plates on both sides thereof, and the support plates and the movable plates on both sides thereof separate the furnace chamber into multiple layers of sealed spaces above and below;

[0009] A heating component is embedded in the side wall of each movable plate. When the movable plate is rotated to a horizontal state and cooperates with the corresponding support plate, the heating component is located on the lower end surface of the movable plate. In normal state, the movable plate is in a vertical state with its rotation axis located at its lower end and the heating component is located on the side close to the support plate.

[0010] By adopting the above technical solution, before annealing, the eccentric shaft drives several support plates to rotate eccentrically through the eccentric block, and rotates several support plates from the furnace mouth to the outside of the furnace, so that the aluminum coils of different specifications to be annealed can be placed on the corresponding support plates from bottom to top in sequence outside the furnace body, and the outer diameter of the aluminum coil increases from top to bottom. After the aluminum coils are placed, the eccentric shaft rotates and resets, and several support plates and aluminum coils are sent into the furnace, and the furnace door is closed to seal the furnace mouth. The movable plate is in a vertical upward state, and the heating components on the movable plates are started to heat the furnace to anneal the aluminum coils.

[0011] Since the hot air surges and the outer diameter of the upper aluminum coil is smaller, the upper aluminum coil requires a shorter annealing time. When the top aluminum coil is annealed, the corresponding movable plates on both sides are driven to rotate to a horizontal state close to the support plate. Under the cooperation of the movable plates and the corresponding support plate, the furnace is divided into two sealed spaces, the upper and lower layers. The furnace space where the top aluminum coil is located is no longer heated, and the heating components on the corresponding movable plates are located at the lower end surface of the movable plates at this time, which can continue to heat the furnace of the lower layer to ensure the continued annealing of the remaining aluminum coils. Similarly, when the second aluminum coil is annealed, the corresponding movable plates on both sides of the second aluminum coil are driven to rotate to a horizontal state close to the support plate, the furnace where the second aluminum coil is located is separated into an independent sealed space, and the heating layer on the first movable plate is closed. Similarly, from top to bottom, according to the annealing time required by the aluminum coil specifications, the movable plates on both sides of each support plate are driven to rotate to a horizontal state in turn to stop the annealing of the corresponding layer of aluminum coils and ensure the continued annealing of the aluminum coils below. Among them, when the bottom layer of aluminum coils is annealed, the bottom layer of movable plates does not need to be rotated to a horizontal state. Of course, it is also possible to decide whether the heating components on the movable plates that have just been closed need to continue working according to the annealing requirements. When all aluminum coils are annealed, several layers of movable plates are reset to a vertical upward state so that the eccentric shaft drives the support plate and aluminum coils to rotate eccentrically to the outside of the furnace for unloading.

[0012] The present invention can simultaneously anneal aluminum coils of different specifications, and control the annealing time according to the specifications of the aluminum coils, so as to ensure the annealing uniformity and annealing quality of the aluminum coils of different specifications, improve the annealing efficiency, and reduce energy consumption and production costs. Of course, if the specifications of the aluminum coils to be annealed are the same, it is not necessary to drive the movable plate to rotate to a horizontal state to control the annealing time of each layer of aluminum coils. Therefore, the present invention can simultaneously anneal aluminum coils of different specifications, and can also simultaneously anneal aluminum coils of the same specifications, and can ensure the annealing quality of the aluminum coils, and has a wide range of applications.

[0013] Furthermore, a heat-conducting hole coaxially arranged with the support plate and penetrating the support plate from top to bottom is provided in the center of each layer of the support plate, a heating plate located below the bottommost support plate and corresponding to the heat-conducting hole is provided in the furnace body, a heat-conducting tube connected to the heat-conducting hole is connected between the heating plate and the heating plate close to the support plate; a support tube coaxially arranged with the support plate is provided in the aluminum coil, two ends of the support tube extend out of the two ends of the aluminum coil, the upper end of the support tube abuts against the lower end surface of the support plate above the support plate, and a plurality of heat-conducting ports vertically arranged and penetrating the thickness direction of the support tube are provided in a circular array on the support tube; a sealing plate cooperating with the support plate is positioned and rotatably installed in the heat-conducting hole of each support plate, the rotation axis of the sealing plate is arranged along the radial direction of the heat-conducting hole, and the sealing plate is in a vertical state and its axis is horizontally perpendicular to the axis of the heat-conducting hole in a normal state, and the sealing plate in the corresponding heat-conducting hole is rotated to a horizontal state after the aluminum coil on the support plate is annealed, and the sealing plate is coaxially arranged with the corresponding heat-conducting hole to close the heat-conducting hole; a containing cavity coaxial with the support plate is provided in the support plate, and the sealing plate is connected to a flip motor driving its rotation and located in the containing cavity.

[0014] By adopting the above technical solution, the upper and lower ends of the support tube are in contact with the support plates above and below it, and there is a certain gap between the upper and lower end surfaces of the aluminum coil and the upper and lower support plates, which facilitates heat to enter the interior of the aluminum coil from the gap between the upper and lower end surfaces of the aluminum coil for annealing, further improving the annealing uniformity and annealing efficiency. In addition, under the connection of the heat-conducting tube, several heat-conducting holes and the support tube, the connection between the inner holes of several layers of aluminum coils is achieved. At the beginning of annealing, the sealing plates in several heat-conducting holes are all in a vertical state, and the heating plate heats and anneals several aluminum coils from the inside of the aluminum coil through the heat-conducting tube, several heat-conducting holes, the support tube and the heat-conducting port on the support tube. When the top layer of aluminum coil is annealed, the flip motor drives the corresponding sealing plate to rotate to a horizontal state, closes the heat-conducting hole where it is located, and thus closes the internal heating annealing of the top layer of aluminum coil. By analogy, each time the annealing of a layer of aluminum coil is completed, the corresponding layer of sealing plate is driven to rotate to a horizontal state to close the corresponding heat-conducting hole. Of course, after the annealing of the bottom layer of aluminum coil is completed, the heating plate can be directly closed without closing the sealing plate of the bottom layer. Among them, a accommodating cavity is provided in the support plate for installing the flip motor, which can not only protect the flip motor, but also prevent the external placement of the flip motor from affecting the rotation of the movable plate to a horizontal state and cooperate with the support plate to separate the furnace.

[0015] Furthermore, a plurality of support arc blocks located at the periphery of the heat-conducting hole are provided in a circular array on the upper end surface of the support plate, and some of the support arc blocks are coaxially arranged with the heat-conducting hole and radially slidably mounted on the support plate along the heat-conducting hole. A positioning assembly for driving some of the support arc blocks to synchronously slide close to or away from the axis of the heat-conducting hole is provided on the support plate, and some of the outer walls of the support arc blocks are in contact with the inner walls of the corresponding support tubes, and other eccentric blocks except the bottom layer are vertically slidably mounted on the eccentric rod.

[0016] By adopting the above technical solution, the outer wall of the support arc block abuts against the inner wall of the corresponding support tube, which can realize the positioning and placement of the aluminum coil, ensure that the aluminum coil can be coaxial with the heat conduction hole, and then ensure the complete connectivity between several layers of aluminum coils. The positioning component can drive several support arc blocks to slide synchronously close to or away from the axis of the heat conduction hole, so that several support arc blocks can cooperate with support tubes of different inner diameter specifications to position them, improve the scope of application, and ensure the positioning effect of the support tube, i.e., the aluminum coil. Among them, when the support arc block protrudes to position the support tube, other eccentric blocks except the bottom layer are vertically slid and installed on the eccentric rod, and the eccentric block drives the support disk to slide vertically on the eccentric rod to adjust the distance between adjacent layers of support disks to ensure the normal loading and unloading of the aluminum coil. In addition, when the axial height of the aluminum coil is different, the distance between two adjacent eccentric blocks, i.e., the support disks, can also be adjusted to ensure that the support tube of the aluminum coil can abut against the support disks at its upper and lower ends, that is, to ensure the connectivity between the inner holes of several layers of aluminum coils, and further improve the specification range of the applicable aluminum coils.

[0017] Furthermore, a sliding block is provided at the bottom of the supporting arc block, and a plurality of sliding grooves are provided in a circumferential array on the upper end surface of the supporting plate along the sliding direction of the corresponding supporting arc block, and the sliding block is slidably installed in the corresponding sliding groove; the positioning assembly includes a positioning screw rod arranged along the length direction of the corresponding sliding groove, and the positioning screw rod is positioned and rotatably installed in the corresponding sliding groove around its axis and is threadedly connected to the corresponding sliding block.

[0018] By adopting the above technical solution, the sliding block is slidably installed in the sliding groove, and the supporting arc block is slidably installed on the supporting plate, thereby ensuring the stability of the sliding of the supporting arc block. When the position of the supporting arc block needs to be adjusted, the positioning screw is driven to rotate, and the supporting arc block is driven to slide along the sliding groove under the threaded connection between the positioning screw and the sliding block and the limiting and guiding effect of the sliding groove on the sliding block. The above positioning component has a simple structure, which is not only convenient for adjusting the position of the supporting arc block, but also can achieve fixation after the position is adjusted, so as to ensure the positioning effect of the supporting arc block on the supporting tube, i.e., the aluminum coil.

[0019] Furthermore, a worm coaxial with the worm is connected to one end of the positioning screw away from the heat conduction hole, a worm wheel meshing with the worm wheel and having a vertically arranged axis is positioned and rotatably installed on one side of the worm wheel, and the worm wheel is located in a corresponding sliding groove; a gear ring coaxial with the support disk is positioned and rotatably installed in the accommodating chamber, a transmission gear coaxial with the worm wheel and located in the accommodating chamber is provided below the worm wheel, and several of the transmission gears are synchronously meshed with the gear ring; a positioning motor with a vertically arranged axis is also provided in the accommodating chamber, and the output shaft of the positioning motor is connected to a driving gear meshing with the gear ring.

[0020] By adopting the above technical solution, the positioning motor drives the active gear to rotate, and the worm wheel is driven to rotate under the meshing action of the active gear and the ring gear, the meshing action of the ring gear and the transmission gear, and the coaxial connection action of the transmission gear and the worm wheel. Under the meshing action of the worm wheel and the worm, and the coaxial connection action of the worm and the positioning screw, the positioning screw is driven to rotate in a fixed position. The above driving structure is simple, fully utilizes the space of the accommodating cavity, and protects the positioning motor and other structures, so as to avoid the external positioning motor affecting the horizontal rotation of the movable plate or the influence of high temperature, thereby improving the service life of the positioning motor.

[0021] Furthermore, a plurality of vertically arranged support rods are arranged in a circumferential array between adjacent support plates, and the upper end surface of the support plate below the support rod and the lower end surface of the support plate above the support rod are both provided with positioning holes that match the two ends of the corresponding support rods, and a plurality of vertically arranged support legs are arranged in a circumferential array at the bottom of the bottom support plate, and a support ball (85) that is in rolling contact with the bottom wall of the furnace is rotatably mounted at the bottom of the support leg.

[0022] By adopting the above technical solution, under the support of several support rods and support legs, it is avoided that only one position of the eccentric block on each layer of the support plate is stressed, thereby ensuring the stability of the aluminum coil after being placed on the corresponding support layer, and ensuring the normal operation of the support plate and the entire device. Among them, the positioning hole can realize the vertical and positioning installation of the support rod, avoid the tilting and deformation of the support rod, and ensure the support effect of the support rod on the aluminum coil.

[0023] Furthermore, all the eccentric blocks except the lowest layer are vertically slidably installed on the eccentric rod, and the support rod includes a coaxially arranged support sleeve and a support slide rod, the lower end of the support slide rod is vertically slidably installed in the support sleeve, the bottom of the support sleeve and the top of the support slide rod are both matched with corresponding positioning holes, and a strong spring vertically arranged and located in the support sleeve is also connected between the lower end of the support slide rod and the bottom of the support sleeve.

[0024] By adopting the above technical solution, all eccentric blocks except the bottom layer are vertically slidably installed on the eccentric rod, so that the distance between adjacent layers of support discs can be adjusted, so that more aluminum coils with different axial heights can be annealed, and the scope of application is improved. The support sleeve, support slide rod and strong spring form a retractable support rod structure, which can automatically adjust the length of the support rod according to the distance between adjacent layers of support discs to meet the support requirements in different situations.

[0025] Furthermore, a plurality of support blocks are installed on the eccentric rod, and a plurality of the support blocks are arranged at intervals and matched with a plurality of eccentric blocks one by one. The support block is located below the eccentric block corresponding to it, and a vertically arranged support spring is connected between its upper end surface and the lower end surface of the eccentric block. A plurality of the support springs are arranged in a circular array around the eccentric rod.

[0026] By adopting the above technical solution, the eccentric block is driven upward under the action of the support spring in normal state, and the aluminum coil is placed from bottom to top in sequence. After the aluminum coil is placed, the elastic force of the support spring is overcome under the action of the weight of the aluminum coil, so that the support plate slides vertically downward, and the strong spring is compressed to make the support slide bar slide vertically downward until the lower end surface of the support plate abuts against the aluminum coil below it, and the placement of multiple layers of aluminum coils is realized by analogy. When the annealing is completed, the material is taken from top to bottom in sequence. When the aluminum coil on the support plate is taken down, the eccentric block is driven by the support spring to drive the support plate to move downward, so that there is a certain distance between the lower end surface of the support plate and the aluminum coil below it, which is convenient for the unloading of the aluminum coil, and the taking of multiple layers of aluminum coils is realized by analogy.

[0027] Furthermore, except for the bottommost layer, the other movable plates are vertically slidably installed on the inner wall of the furnace, and the inner wall of the furnace is provided with movable grooves vertically arranged near the two ends of the movable plates, and movable blocks are vertically slidably installed in the movable grooves. The movable plates are positioned and rotatably connected to the movable blocks at both ends of the movable plates and are connected to movable motors that drive them to rotate, and the movable blocks are provided with yield grooves that cooperate with the movable motors.

[0028] By adopting the above technical solution, the movable plates except the bottom layer are vertically slidably installed on the inner wall of the furnace, and the position of the movable plate can be adjusted according to the adjustment of the position of the support plate, so as to ensure that the movable plate can smoothly cooperate with the corresponding support plate to separate the furnace when it rotates to a horizontal state. Among them, the movable plate is driven to rotate by a movable motor, the yield groove is used to store and protect the movable motor, and the moving block is vertically slidably installed in the moving groove to realize the vertical limited sliding of the movable plate.

[0029] Furthermore, the side wall of the moving block is provided with a moving rack that is vertically arranged and located in the moving groove. A lifting gear that is located on one side of the moving rack and meshes with the moving rack is also positioned and rotatably installed in the moving groove. The axis of the lifting gear is horizontally arranged perpendicular to the side wall of the furnace where the moving groove is located. A lifting motor that drives the corresponding lifting gear to position and rotate is installed on the outer wall of the furnace body.

[0030] By adopting the above technical solution, the lifting motor drives the lifting gear to rotate, and under the meshing action of the lifting gear and the moving rack, the moving block is driven to drive the movable plate to vertically lift and lower, so as to adjust the position of the movable plate. Among them, the lifting motor is arranged outside the furnace body to avoid the lifting motor being easily affected by high temperature when it is built into the furnace, so as to ensure its normal operation and service life.

[0031] In summary, the present invention has the following beneficial effects:

[0032] 1. The present invention is provided with an eccentric rod, several layers of support disks, a movable plate that cooperates with the corresponding support disks and is rotatably installed, and a heating component embedded in the movable plate. The outer diameters of the aluminum coils on the several layers of support disks increase from top to bottom in sequence. When annealing starts, the movable plate is in a vertically upward state, and the heating component heats the furnace to anneal several aluminum coils. Since the hot air surges upward and the outer diameter of the upper aluminum coil is smaller, the upper aluminum coil requires a shorter annealing time. When the uppermost aluminum coil is annealed, the corresponding movable plates on both sides thereof are driven to rotate toward the support disk to a horizontal state. Under the cooperation of the movable plate and the corresponding support disk, the furnace is divided into two sealed spaces, the upper and lower layers. The furnace space where the uppermost aluminum coil is located is no longer heated, and the heating component on the corresponding movable plate is located at the lower end surface of the movable plate at this time, and can continue to heat the furnace of the lower layer to ensure the continued annealing of the remaining aluminum coils. The annealing time of each layer of aluminum coil is controlled in sequence by analogy. In this way, aluminum coils of different specifications can be annealed at the same time, and the annealing time can be controlled according to the specifications of the aluminum coils to ensure the annealing uniformity and annealing quality of aluminum coils of different specifications, improve annealing efficiency, and reduce energy consumption and production costs.

[0033] 2. The present invention provides a heat-conducting hole coaxial with the support plate on each layer, a sealing plate rotatably installed in each heat-conducting hole, a heating plate located below the bottom support plate and a heat-conducting tube connected to the heat-conducting holes. When annealing starts, the sealing plates in the heat-conducting holes are in a vertical state, and the heating plate heats and anneals the aluminum coils from the inside of the aluminum coil through the heat-conducting tube, the heat-conducting holes, the support tube, and the heat-conducting ports on the support tube. When the top aluminum coil is annealed, the flip motor drives the corresponding sealing plate to rotate to a horizontal state, closing the heat-conducting hole where it is located, thereby closing the internal heating annealing of the top aluminum coil. In this way, the internal annealing time of each layer of aluminum coil is controlled in sequence, the annealing efficiency is improved, and the annealing quality is guaranteed.

[0034] 3. In the present invention, all eccentric blocks except the lowest layer are vertically slidably mounted on the eccentric rod, and the corresponding movable plates are also vertically slidably mounted on the inner wall of the furnace. The distance between adjacent support plates can be adjusted according to the axial height of each layer of aluminum coil, and the normal cooperation of various components is ensured, so that more aluminum coils of different specifications can be annealed simultaneously, further improving the scope of use.

[0035] 4. In the present invention, support rods and support legs are provided to provide multi-point support for each support plate, so as to avoid that only one position of the eccentric block on each support plate is stressed, thereby ensuring the stability of the aluminum coil after being placed on the corresponding support layer, and ensuring the normal operation of the support plate and the entire device.

[0036] 5. The present invention can not only anneal aluminum coils of various specifications at the same time and control the annealing time according to the specifications of the aluminum coils, but also anneal aluminum coils of the same specification at the same time, without adjusting the movable plate and the sealing plate during the annealing process, thereby further improving the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of an annealing device suitable for aluminum coils of different specifications;

[0038] Figure 2 It is a schematic diagram of the internal structure of an annealing device suitable for aluminum coils of different specifications;

[0039] Figure 3 It is a schematic diagram of a part of the structure of an annealing device suitable for aluminum coils of different specifications;

[0040] Figure 4 It is an exploded diagram of part of the structure of an annealing device suitable for aluminum coils of different specifications;

[0041] Figure 5 The present invention is a schematic diagram of the internal structure of a support plate in an annealing device suitable for aluminum coils of different specifications.

[0042] In the figure, 1, furnace body; 11, furnace chamber; 111, moving groove; 12, furnace mouth; 13, furnace door; 2, eccentric rod; 21, eccentric motor; 3, support plate; 31, heat conduction hole; 32, sealing plate; 321, flip motor; 33, accommodating cavity; 34, supporting arc block; 341, sliding block; 35, sliding groove; 36, positioning assembly; 361, positioning screw rod; 362, worm; 363, worm wheel; 364, transmission gear; 365, gear ring; 366, positioning motor; 367, driving gear; 37, Positioning hole; 4. Eccentric block; 41. Support block; 42. Support spring; 5. Aluminum coil; 51. Support tube; 52. Heat transfer port; 6. Movable plate; 61. Notch; 62. Movable motor; 7. Heating assembly; 71. Heating plate; 72. Heat transfer tube; 8. Support rod; 81. Support sleeve; 82. Support slide rod; 83. Power spring; 84. Support leg; 85. Support ball; 9. Moving block; 91. Give way slot; 92. Moving rack; 93. Lifting gear; 94. Lifting motor; 10. Control panel. DETAILED DESCRIPTION

[0043] The present invention is further described in detail below in conjunction with 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] An annealing device suitable for aluminum coils of different specifications, such as Figure 1As shown, it includes a vertically arranged furnace body 1, a furnace chamber 11 is arranged inside the furnace body 1, a furnace opening 12 is arranged on one of the vertical side walls of the furnace body 1 and is connected to the furnace chamber 11, and a furnace door 13 is arranged at the furnace opening 12 to cooperate with the furnace opening 12 to open and close it, wherein the outer wall of the furnace body 1 can be self-insulated, and the opening and closing of the furnace door 13 is preferably horizontally slid and automatically controlled, which is the same as the prior art and will not be described in detail. In addition, the side wall of the furnace body 1 is also provided with a control panel 10 for controlling the automatic operation of the entire annealing device, and the various electric control components such as motors and heating structures involved below are all controlled by the control panel 10 using automatic control technology such as PLC to control their automatic operation and linkage, and the automatic control is a prior art and will not be described in detail.

[0045] like Figure 1 and Figure 2 As shown, an eccentric rod 2 is provided in the furnace 11 near the furnace mouth 12 and is vertically arranged. The eccentric rod 2 is installed in the furnace 11 around its axis and is positioned and rotated. The upper end of the eccentric rod 2 extends out of the upper end of the furnace body 1 and is connected to an eccentric motor 21 that drives it to rotate. Several layers of coaxial support plates 3 are also provided in the furnace 11. The axes of the several support plates 3 are vertically arranged, and the axes of the several support plates 3 and the eccentric rod 2 are located on the symmetric plane of the inner wall of the furnace 11 on both sides of the furnace door 13. An eccentric block 4 is provided on the side wall of each support plate 3 near the eccentric rod 2, which is integrally formed with the eccentric rod 2 and installed on the eccentric rod 2. The eccentric rod 2 drives the several support plates 3 to rotate eccentrically through the eccentric block 4. During annealing, the aluminum coil 5 to be annealed is installed on the upper end surface of the support plate 3 and is coaxially arranged with the corresponding support plate 3, and the outer diameters of the aluminum coils 5 installed on the several layers of support plates 3 increase from top to bottom.

[0046] like Figure 1 and Figure 3 As shown, on both sides of each layer of support disc 3, movable plates 6 are symmetrically arranged to match with it. The movable plates 6 on both sides of the support disc 3 are respectively located on both sides of the furnace mouth 12. When the movable plates 6 are arranged vertically upward, the lower ends are rotatably connected with the side walls of the furnace 11 close to it, and the rotation axis is arranged horizontally perpendicular to the furnace door 13. The movable plates 6 on both sides of each layer of support disc 3 are arranged at one end away from the rotation axis, which is matched with the outer wall of the corresponding support disc 3, the eccentric block 4 and the eccentric rod 2. When the movable plates 6 rotate to a horizontal state in the direction close to the corresponding support disc 3, the support disc 3 is located in the notch 61 of the movable plates 6 on both sides. The support disc 3 and the movable plates 6 on both sides separate the furnace 11 into two layers of sealed spaces, and the furnace 11 can be separated into multiple layers of sealed spaces after the multiple layers of movable plates 6 are rotated to a horizontal state in sequence. Among them, the periphery of the movable plates 6 is processed with arcs to prevent its rotation from interfering with the inner wall of the furnace 11 and the support disc 3 and other components.

[0047] like Figure 3As shown, a heating assembly 7 is embedded in the side wall of each movable plate 6. When the movable plate 6 rotates to a horizontal state and cooperates with the corresponding support plate 3, the heating assembly 7 is located at the lower end surface of the movable plate 6. In normal state, the movable plate 6 is in a vertical state with its rotation axis located at its lower end, and the heating assembly 7 is located on the side close to the support plate 3. Among them, the heating assembly 7 is preferably a serpentine heating wire, and a heating structure of a certain type can also be selected according to actual use requirements, as long as it meets the use requirements and does not interfere with other structures in the device.

[0048] like Figure 1 and Figure 2 As shown, before annealing, the eccentric motor 21 drives the eccentric shaft to rotate, and drives the eccentric blocks 4 to drive the support plates 3 to rotate eccentrically, and rotate the support plates 3 from the furnace mouth 12 to the outside of the furnace 11, so that the aluminum coils 5 of different specifications to be annealed are placed on the corresponding support plates 3 from bottom to top in sequence outside the furnace body 1, and the outer diameter of the aluminum coils 5 increases from top to bottom. After the aluminum coils 5 are placed, the eccentric shaft rotates and resets, and the support plates 3 and the aluminum coils 5 are sent into the furnace 11, and the furnace door 13 is closed to close the furnace mouth 12. The movable plate 6 is in a vertical upward state, and the heating components 7 on the movable plates 6 are started to heat the furnace 11 to anneal the aluminum coils 5.

[0049] like Figure 1 and Figure 2 As shown, due to the upward surge of hot air and the smaller outer diameter of the upper aluminum coil 5, the upper aluminum coil 5 requires a shorter annealing time. After the top aluminum coil 5 is annealed, the corresponding movable plates 6 on both sides thereof are driven to rotate toward the support plate 3 to a horizontal state. With the cooperation of the movable plates 6 and the corresponding support plate 3, the furnace 11 is divided into two sealed spaces, the upper and lower layers. The space of the furnace 11 where the top aluminum coil 5 is located is no longer heated, and the heating component 7 on the corresponding movable plate 6 is located at the lower end surface of the movable plate 6 at this time, and the furnace 11 of the lower layer can continue to be heated to ensure the continued annealing of the remaining aluminum coils 5.

[0050] like Figure 1 and Figure 2As shown, by analogy, when the second layer of aluminum coil 5 is annealed, the movable plates 6 corresponding to the two sides of the second layer of aluminum coil 5 are driven to rotate to a horizontal state in the direction close to the support plate 3. At this time, the furnace 11 is divided into three layers of sealed space, and the space of the furnace 11 where the second layer of aluminum coil 5 is located is no longer heated, and the heating layer on the first layer of movable plates 6 is closed. By analogy, from top to bottom, according to the annealing time required by the specifications of the aluminum coil 5, the movable plates 6 on both sides of each layer of the support plate 3 are driven to rotate to a horizontal state in turn to stop the annealing of the corresponding layer of aluminum coil 5 and ensure the continued annealing of the aluminum coil 5 below it. Among them, when the bottom layer of aluminum coil 5 is annealed, the movable plates 6 of the bottom layer do not need to rotate to a horizontal state. Of course, it can also be determined whether the heating components 7 on the movable plates 6 that have just been closed need to continue to work according to the annealing requirements. When all aluminum coils 5 are annealed, several layers of movable plates 6 are reset to a vertical upward state so that the eccentric shaft drives the support plate 3 and the aluminum coil 5 to rotate eccentrically to the outside of the furnace 11 for unloading.

[0051] like Figure 3 and Figure 4 As shown, in order to further improve the annealing uniformity and annealing efficiency of the multi-layer aluminum coil 5, in this embodiment, a coaxial support tube 51 is provided in the aluminum coil 5, and both ends of the support tube 51 extend out of both ends of the aluminum coil 5, and the lower end of the support tube 51 abuts against the upper end surface of the support plate 3 below it, and the upper end of the support tube 51 abuts against the lower end surface of the support plate 3 above it, so that there is a certain gap between the upper and lower end surfaces of the aluminum coil 5 and the upper and lower support plates 3, so as to ensure that heat can enter the interior of the aluminum coil 5 from the gap between the upper and lower end surfaces of the aluminum coil 5.

[0052] In addition, if Figure 2 and Figure 4 As shown, the center of each layer of support plate 3 is provided with a heat-conducting hole 31 which is coaxially arranged therewith and penetrates it from top to bottom, a heating plate 71 is provided in the furnace body 1, which is located below the bottommost support plate 3 and corresponds to its heat-conducting hole 31, a heat-conducting cylinder 72 which is connected to the heat-conducting hole 31 is connected between the heating plate 71 and the heating plate 71 close thereto, and a plurality of heat-conducting ports 52 which are vertically arranged and penetrate the thickness direction of the support cylinder 51 inside the aluminum coil 5 are provided in a circumferential array. Under the connection of the heat-conducting cylinder 72, the plurality of heat-conducting holes 31 and the support cylinder 51, the inner holes of the plurality of layers of aluminum coils 5 are connected, and the heating plate 71 heats and anneals the plurality of aluminum coils 5 from the inside of the aluminum coil 5 through the heat-conducting cylinder 72, the plurality of heat-conducting holes 31, the support cylinder 51 and the heat-conducting ports 52 on the support cylinder 51.

[0053] like Figure 4 and Figure 5As shown, in order to realize the time control of the internal annealing of aluminum coils 5 of different specifications, a sealing plate 32 cooperating therewith is positioned and rotatably installed in the heat conduction hole 31 of each support disk 3, and the rotation axis of the sealing plate 32 is arranged radially along the heat conduction hole 31. In normal state, the sealing plate 32 is in a vertical state and its axis is horizontally perpendicular to the axis of the heat conduction hole 31. After the aluminum coil 5 on the support disk 3 completes the annealing, the sealing plate 32 in the corresponding heat conduction hole 31 rotates to a horizontal state, and the sealing plate 32 is coaxially arranged with the corresponding heat conduction hole 31 to close the heat conduction hole 31. In order to realize the automatic rotation of the driving sealing plate 32, a coaxial accommodating chamber 33 is provided in the support disk 3, and the sealing plate 32 is connected to a flip motor 321 that drives its rotation and is located in the accommodating chamber 33. Among them, the periphery of the sealing plate 32 is subjected to arc transition treatment to ensure its rotation flexibility.

[0054] like Figure 2 and Figure 4 As shown, at the beginning of annealing, the sealing plates 32 in the heat conducting holes 31 are all in a vertical state to ensure that the heat of the heating plate 71 can anneal all the aluminum coils 5 from the inside. When the top aluminum coil 5 is annealed, the turning motor 321 (marked at Figure 5 The corresponding sealing plate 32 is driven to rotate to a horizontal state, and the heat conducting hole 31 where it is located is closed, thereby closing the internal heating annealing of the top aluminum coil 5. Similarly, after each layer of aluminum coil 5 is annealed, the corresponding sealing plate 32 is driven to rotate to a horizontal state to close the corresponding heat conducting hole 31. Of course, after the annealing of the bottom aluminum coil 5 is completed, the heating plate 71 can be directly closed without closing the sealing plate 32 of the bottom layer.

[0055] like Figure 2 and Figure 3 As shown, in order to prevent the support disc 3 from being stressed only at the eccentric block 4, a plurality of vertically arranged support rods 8 are arranged in a circumferential array between adjacent support discs 3. Figure 3 and Figure 5 As shown, the upper end surface of the support plate 3 below the support rod 8 and the lower end surface of the support plate 3 above are both provided with positioning holes 37 that match the two ends of the corresponding support rod 8, so as to realize the positioning and detachable installation connection between the support rod 8 and the support plates 3 at the upper and lower ends. Figure 2 and Figure 3 As shown, a plurality of vertically arranged support legs 84 are arranged in a circumferential array at the bottom of the bottom support plate 3, and a support ball 85 rollingly mounted at the bottom of the support leg 84 in rolling contact with the inner bottom wall of the furnace 11 is used to support the bottom support plate 3 and avoid affecting the eccentric rod 2 to drive the eccentric rotation of the plurality of support plates 3. Under the support of the plurality of support rods 8 and the support legs 84, the stability of the aluminum coils 5 placed on the plurality of support plates 3 is ensured, and the service life of the entire device is improved.

[0056] like Figure 4 and Figure 5As shown, in order to realize the positioning and placement of the aluminum coil 5 and ensure the coaxiality of the aluminum coil 5 and the support plate 3 to ensure the normal internal annealing of the aluminum coils 5, a plurality of support arc blocks 34 located at the periphery of the heat conduction hole 31 are arranged in a circumferential array on the upper end surface of each support plate 3. The plurality of support arc blocks 34 are arranged coaxially with the heat conduction hole 31 and are radially slidably mounted on the support plate 3 along the heat conduction hole 31. The support plate 3 is provided with a positioning assembly 36 for driving the plurality of support arc blocks 34 to synchronously slide close to or away from the axis of the heat conduction hole 31. The outer walls of the plurality of support arc blocks 34 abut against the inner walls of the corresponding support cylinders 51 to realize the positioning and placement of the aluminum coil 5, ensure that the aluminum coil 5 can be coaxial with the heat conduction hole 31, and further ensure the complete connection between the plurality of layers of aluminum coils 5. The positioning assembly 36 can drive the plurality of support arc blocks 34 to slide synchronously toward or away from the axis of the heat conducting hole 31 , so that the plurality of support arc blocks 34 can cooperate with the support tubes 51 with different inner diameters to position them, thereby improving the scope of application and ensuring the positioning effect of the support tube 51 , i.e., the aluminum coil 5 .

[0057] Specifically, if Figure 4 and Figure 5 As shown, a sliding block 341 is provided at the bottom of the support arc block 34, and a plurality of sliding grooves 35 are provided in a circumferential array on the upper end surface of the support plate 3 along the sliding direction of the corresponding support arc block 34, and the sliding block 341 is slidably installed in the corresponding sliding groove 35. The positioning assembly 36 includes a positioning screw 361 arranged along the length direction of the corresponding sliding groove 35, and the positioning screw 361 is positioned and rotated around its axis and installed in the corresponding sliding groove 35 and is threadedly connected to the corresponding sliding block 341. A worm 362 coaxial with the positioning screw 361 is connected to one end away from the heat conduction hole 31, and a worm wheel 363 meshing with the worm wheel 362 and arranged vertically with its axis is positioned and rotated on one side of the worm wheel 362, and the worm wheel 363 is located in the corresponding sliding groove 35. A gear ring 365 coaxial with the support plate 3 is positioned and rotatably installed in the accommodating chamber 33, and a transmission gear 364 coaxial with the worm gear 363 and located in the accommodating chamber 33 is provided below the worm gear 363, and several transmission gears 364 are synchronously meshed with the gear ring 365; a positioning motor 366 with a vertical axis is also provided in the accommodating chamber 33, and the output shaft of the positioning motor 366 is connected to a driving gear 367 meshing with the gear ring 365.

[0058] like Figure 5As shown, the positioning motor 366 drives the active gear 367 to rotate, and the worm wheel 363 is driven to rotate under the meshing action of the active gear 367 and the ring gear 365, the meshing action of the ring gear 365 and the transmission gear 364, and the coaxial connection action of the transmission gear 364 and the worm wheel 363. The positioning screw 361 is driven to rotate in a positioning manner under the meshing action of the worm wheel 363 and the worm 362, and the coaxial connection action of the worm 362 and the positioning lead screw 361. Under the threaded connection action of the positioning lead screw and the sliding block 341 and the limiting and guiding action of the sliding groove 35 on the sliding block 341, the support arc block 34 is driven to slide along the sliding groove 35, so as to ensure that the outer walls of several support arc blocks 34 can abut against the inner wall of the support tube 51 with different inner diameter specifications.

[0059] like Figure 4 As shown, when the support arc block 34 positions the support cylinder 51, the other eccentric blocks 4 except the bottom layer are vertically slidably mounted on the eccentric rod 2 to adjust the distance between the adjacent layers of support disks 3, which is convenient for placing and taking the aluminum coil 5. In addition, when the axial height of the aluminum coil 5 is different, the distance between two adjacent eccentric blocks 4, i.e., the support disks 3, can be adjusted to ensure that the support cylinder 51 of the aluminum coil 5 can abut against the support disks 3 at its upper and lower ends, i.e., to ensure the connectivity between the inner holes of several layers of aluminum coils 5, further improving the specification range of the applicable aluminum coil 5.

[0060] like Figure 3 As shown, when all eccentric blocks 4 except the bottom layer are vertically slidably mounted on the eccentric rod 2, the support rod 8 is set as a retractable structure to meet the use requirements under different distances between adjacent support disks 3. Specifically, the support rod 8 includes a coaxially arranged support sleeve 81 and a support slide bar 82, the lower end of the support slide bar 82 is vertically slidably mounted in the support sleeve 81, the bottom of the support sleeve 81 and the top of the support slide bar 82 are both matched with the corresponding positioning holes 37, and a strong spring 83 vertically arranged and located in the support sleeve 81 is also connected between the lower end of the support slide bar 82 and the bottom of the support sleeve 81. Under the action of the strong spring 83 and the sliding connection between the support slide bar 82 and the support sleeve 81, the length of the support rod 8 can be automatically adjusted according to the distance between the adjacent layers of support disks 3 to meet the support requirements in different situations.

[0061] like Figure 3 As shown, in order to realize the sliding installation of the eccentric block 4, a plurality of support blocks 41 are installed on the eccentric rod 2. The plurality of support blocks 41 are arranged at intervals and matched with the plurality of eccentric blocks 4 one by one. The support block 41 is located below the corresponding eccentric block 4, and a vertically arranged support spring 42 is connected between its upper end surface and the lower end surface of the eccentric block 4. A plurality of support springs 42 are arranged in a circular array around the eccentric rod 2.

[0062] like Figure 2 and Figure 3As shown, in normal state, the eccentric block 4 is driven upward under the action of the support spring 42, and the aluminum coil 5 is placed from bottom to top in sequence. After the aluminum coil 5 is placed, the elastic force of the support spring 42 is overcome under the action of the weight of the aluminum coil 5, so that the support plate 3 slides vertically downward, and the strong spring 83 is compressed to make the support slide bar 82 slide vertically downward until the lower end surface of the support plate 3 abuts against the aluminum coil 5 below it, and so on to achieve the placement of multiple layers of aluminum coils 5. When the annealing is completed, the material is taken from top to bottom in sequence. When the aluminum coil 5 on the support plate 3 is removed, the eccentric block 4 is driven by the support spring 42 to drive the support plate 3 to move downward, so that there is a certain distance between the lower end surface of the support plate 3 and the aluminum coil 5 below it, which is convenient for the unloading of the aluminum coil 5, and so on to achieve the taking of multiple layers of aluminum coils 5. Among them, the elastic force and supporting force of the support spring 42 and the strong spring 83 in this embodiment are sufficient. Considering that the weight of the aluminum coil 5 is too heavy, in other embodiments, other structures with better supporting force or automation such as telescopic cylinders can also be used to realize the sliding drive of the eccentric block 4 and the support slide rod 82, and the working principle is similar.

[0063] like Figure 2 and Figure 3 As shown, when the eccentric block 4 is slidably mounted on the eccentric rod 2, in order to ensure the cooperation between the movable plate 6 and the eccentric block 4, the corresponding movable plate 6 is vertically slidably mounted on the inner wall of the furnace 11. Specifically, a moving groove 111 is provided on the inner wall of the furnace 11, which is close to both ends of the movable plate 6 and is vertically arranged. A moving block 9 is vertically slidably mounted in the moving groove 111. The movable plate 6 is connected to the moving blocks 9 at both ends of the movable plate 6 for positioning and rotation and is connected to a movable motor 62 that drives it to rotate. A yielding groove 91 that cooperates with the movable motor 62 is provided in the moving block 9. A moving rack 92 that is vertically arranged and located in the moving groove 111 is provided on the side wall of the moving block 9. A lifting gear 93 that is located on one side of the moving rack 92 and meshes with the moving rack 92 is also positioned and rotatably mounted in the moving groove 111. The axis of the lifting gear 93 is horizontally arranged perpendicular to the side wall of the furnace 11 where the moving groove 111 is located. A lifting motor 94 that drives the corresponding lifting gear 93 to position and rotate is installed on the outer wall of the furnace body 1.

[0064] like Figure 2 and Figure 3 As shown, the position of the movable plate 6 is adjusted according to the adjustment of the position of the support plate 3, and the lifting motor 94 drives the lifting gear 93 to rotate. Under the meshing action of the lifting gear 93 and the moving rack 92, the moving block 9 is driven to drive the movable plate 6 to vertically lift and lower, and the position of the movable plate 6 is adjusted, so as to ensure that when the movable plate 6 rotates to a horizontal state, it can smoothly cooperate with the corresponding support plate 3 to separate the furnace 11. Among them, the movable motor 62 is arranged in the clearance groove 91, and the lifting motor 94 is arranged outside the furnace body 1 to protect the movable motor 62 and the lifting motor 94.

[0065] Of course, if Figure 2and Figure 3 As shown, since the bottom eccentric block 4 is fixed, the movable plates 6 on both sides of the bottom support plate 3 can also be fixed, and their rotation is also achieved through structures such as the moving block 9 and the movable motor 62. The height of the corresponding moving groove 111 and the height of the moving block 9 can be adapted to limit it. There is no need to set the corresponding moving rack 92, lifting gear 93, lifting motor 94 and other structures to drive the corresponding moving block 9 to slide vertically. Only a simple diagram is given in the figure.

[0066] Working principle and use method of the present invention:

[0067] The aluminum coils 5 to be annealed are placed on the support plates 3 in sequence, and the outer diameters of the aluminum coils 5 on the support plates 3 increase from top to bottom. When annealing starts, the movable plate 6 is in a vertical upward state, the sealing plate 32 is in a vertical state, and the heating assembly 7 heats the furnace 11 to anneal the aluminum coils 5. The heating plate 71 heats and anneals the aluminum coils 5 from the inside of the aluminum coil 5 through the heat conduction tube 72, the heat conduction holes 31, the support tube 51, and the heat conduction port 52 on the support tube 51.

[0068] When the top aluminum coil 5 is annealed, the corresponding movable plates 6 on both sides are driven to rotate to a horizontal state toward the support plate 3, and the sealing plate 32 in the heat conduction hole 31 on the top support plate 3 is driven to rotate to a horizontal state to close the heat conduction hole 31. Under the cooperation of the movable plate 6 and the corresponding support plate 3, the furnace 11 is divided into two sealed spaces, the upper and lower layers. The furnace 11 space where the top aluminum coil 5 is located is no longer heated, and the heating component 7 on the corresponding movable plate 6 is located at the lower end surface of the movable plate 6 at this time, and the furnace 11 of the lower layer can continue to heat to ensure the continued annealing of the remaining aluminum coils 5. The annealing time of each layer of aluminum coil 5 is controlled in this way. Of course, it is also possible to determine whether the heating component 7 on the movable plate 6 that has just been closed needs to continue to work according to the annealing requirements. After the bottom aluminum coil 5 is annealed, the heating disc 71 and the heating component 7 on the movable plate 6 can be directly closed according to the actual annealing requirements, without closing the sealing plate 32 and the movable plate 6 of the bottom layer.

[0069] The present invention can simultaneously anneal aluminum coils 5 of different specifications, and control the annealing time according to the specifications of the aluminum coils 5, so as to ensure the annealing uniformity and annealing quality of the aluminum coils 5 of different specifications, improve the annealing efficiency, and reduce energy consumption and production costs. In addition, if the specifications of the aluminum coils 5 to be annealed are the same, it is not necessary to drive the movable plate 6 to rotate to a horizontal state to control the annealing time of each layer of the aluminum coil 5. Therefore, the present invention can simultaneously anneal aluminum coils 5 of different specifications, and can also simultaneously anneal aluminum coils 5 of the same specifications, and can ensure the annealing quality of the aluminum coils 5, and has a wide range of applications.

[0070] The above description shows and describes the preferred embodiments of the present invention. As mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. An annealing device suitable for aluminum coils of different specifications, characterized by: It comprises a furnace body (1) which is arranged vertically and has a furnace chamber (11) inside, wherein a furnace opening (12) is provided on one vertical side wall of the furnace body (1), and a furnace door (13) which cooperates with the furnace opening (12) to open and close the furnace opening; The furnace (11) is provided with an eccentric rod (2) arranged vertically near the furnace mouth (12), and the eccentric rod (2) is installed in the furnace (11) to be positioned and rotated around its axis; the furnace (11) is provided with a plurality of layers of coaxial support plates (3) arranged up and down, the axis of the support plates (3) being arranged vertically, and the axis of the support plates (3) and the axis of the eccentric rod (2) are both located on the symmetric plane of the inner wall of the furnace (11) on both sides of the furnace door (13); each of the support plates (3) is provided with an eccentric block (4) integrally formed with the eccentric rod (2) on the side wall near the eccentric rod (2), and the eccentric block (4) is installed on the eccentric rod (2), and the eccentric rod (2) drives the plurality of support plates (3) to rotate eccentrically through the eccentric block (4); an aluminum coil (5) coaxial with the support plate (3) is installed on the upper end surface of each support plate (3), and the outer diameters of the aluminum coils (5) installed on the plurality of support plates (3) increase from top to bottom; Both sides of each layer of the support plate (3) are symmetrically provided with movable plates (6) that match with it. The movable plates (6) on both sides of the support plate (3) are respectively located on both sides of the furnace opening (12). When the movable plates (6) are arranged vertically upward, their lower ends are rotatably connected to the side walls of the furnace chamber (11) close to them, and their rotation axes are arranged horizontally perpendicular to the furnace door (13); the movable plates (6) on both sides of each layer of the support plate (3) are provided with notches (61) that match with the outer walls of the corresponding support plate (3), the eccentric block (4) and the eccentric rod (2) at their ends away from their rotation axes. When the movable plates (6) are rotated in a direction close to the corresponding support plate (3) to a horizontal state, the support plate (3) is located in the notches (61) of the movable plates (6) on both sides thereof. The support plate (3) and the movable plates (6) on both sides thereof separate the furnace chamber (11) into multiple layers of sealed spaces in upper and lower layers. A heating component (7) is embedded in the side wall of each movable plate (6); when the movable plate (6) is rotated to a horizontal state to cooperate with the corresponding support plate (3), the heating component (7) is located on the lower end surface of the movable plate (6); in a normal state, the movable plate (6) is in a vertical state with its rotation axis located at its lower end, and the heating component (7) is located on the side close to the support plate (3).

2. The annealing device suitable for aluminum coils of different specifications according to claim 1 is characterized in that: A heat-conducting hole (31) coaxially arranged with the support plate (3) and penetrating the support plate (3) from top to bottom is provided at the center of each layer; a heating plate (71) located below the bottommost support plate (3) and corresponding to the heat-conducting hole (31) is provided in the furnace body (1); a heat-conducting tube (72) communicating with the heat-conducting hole (31) is connected between the heating plate (71) and the heating plate (71) adjacent to the heating plate (71); a support tube (51) coaxially arranged with the aluminum coil (5) is provided in the aluminum coil (5); two ends of the support tube (51) extend out of two ends of the aluminum coil (5); the upper end of the support tube (51) abuts against the lower end surface of the support plate (3) above the support tube (51); a plurality of heat-conducting ports (52) vertically arranged and penetrating the thickness direction of the support tube (51) are provided in a circular array on the upper circumference of the support tube (51); each A sealing plate (32) is positioned and rotatably mounted in the heat-conducting hole (31) of the support disk (3). The rotation axis of the sealing plate (32) is arranged radially along the heat-conducting hole (31). In normal state, the sealing plate (32) is in a vertical state and its axis is horizontally perpendicular to the axis of the heat-conducting hole (31). After the aluminum coil (5) on the support disk (3) is annealed, the sealing plate (32) in the corresponding heat-conducting hole (31) is rotated to a horizontal state. The sealing plate (32) is coaxially arranged with the corresponding heat-conducting hole (31) to close the heat-conducting hole (31). A containing cavity (33) coaxial with the support disk (3) is provided in the support disk (3). The sealing plate (32) is connected to a flip motor (321) that drives its rotation and is located in the containing cavity (33).

3. The annealing device suitable for aluminum coils of different specifications according to claim 2, characterized in that: A plurality of support arc blocks (34) located at the periphery of the heat-conducting hole (31) are arranged in a circular array on the upper end surface of the support disk (3); a plurality of the support arc blocks (34) are coaxially arranged with the heat-conducting hole (31) and are radially slidably mounted on the support disk (3) along the heat-conducting hole (31); a positioning assembly (36) is provided on the support disk (3) for driving the plurality of support arc blocks (34) to synchronously slide close to or away from the axis of the heat-conducting hole (31); the outer walls of the plurality of support arc blocks (34) are in contact with the inner walls of the corresponding support tubes (51); and the eccentric blocks (4) other than the bottom layer are vertically slidably mounted on the eccentric rod (2).

4. The annealing device suitable for aluminum coils of different specifications according to claim 3, characterized in that: A sliding block (341) is provided at the bottom of the supporting arc block (34); a plurality of sliding grooves (35) are provided in a circumferential array on the upper end surface of the supporting plate (3) along the sliding direction of the corresponding supporting arc block (34); the sliding block (341) is slidably installed in the corresponding sliding groove (35); the positioning assembly (36) comprises a positioning screw rod (361) arranged along the length direction of the corresponding sliding groove (35); the positioning screw rod (361) is positioned and rotatably installed in the corresponding sliding groove (35) around its axis and is threadedly connected to the corresponding sliding block (341).

5. The annealing device suitable for aluminum coils of different specifications according to claim 4, characterized in that: The end of the positioning screw (361) away from the heat conduction hole (31) is connected to a worm (362) coaxial with the worm (361), and a worm wheel (363) meshing with the worm (362) and having its axis vertically arranged is positioned and rotatably installed on one side of the worm (362), and the worm wheel (363) is located in the corresponding sliding groove (35); a gear ring (365) coaxial with the support plate (3) is positioned and rotatably installed in the accommodating chamber (33), and a transmission gear (364) coaxial with the worm wheel (363) and located in the accommodating chamber (33) is provided below the worm wheel (363), and a plurality of the transmission gears (364) are synchronously meshed with the gear ring (365); a positioning motor (366) having its axis vertically arranged is also provided in the accommodating chamber (33), and the output shaft of the positioning motor (366) is connected to a driving gear (367) meshing with the gear ring (365).

6. The annealing device suitable for aluminum coils of different specifications according to claim 1, characterized in that: A plurality of vertically arranged support rods (8) are arranged in a circular array between adjacent support plates (3); the upper end surface of the support plate (3) below the support rod (8) and the lower end surface of the support plate (3) above the support rod (8) are both provided with positioning holes (37) that match the two ends of the corresponding support rods (8); a plurality of vertically arranged support legs (84) are arranged in a circular array at the bottom of the bottommost support plate (3); a support ball (85) that is in rolling contact with the inner bottom wall of the furnace (11) is rotatably mounted at the bottom of the support leg (84).

7. The annealing device for aluminum coils of different specifications according to claim 6, characterized in that: The eccentric blocks (4) other than the bottom layer are vertically slidably mounted on the eccentric rod (2); the support rod (8) comprises a coaxially arranged support sleeve (81) and a support slide rod (82); the lower end of the support slide rod (82) is vertically slidably mounted in the support sleeve (81); the bottom of the support sleeve (81) and the top of the support slide rod (82) are both matched with the corresponding positioning holes (37); a strong spring (83) vertically arranged and located in the support sleeve (81) is also connected between the lower end of the support slide rod (82) and the bottom of the support sleeve (81).

8. The annealing device for aluminum coils of different specifications according to claim 7, characterized in that: A plurality of support blocks (41) are mounted on the eccentric rod (2), and the support blocks (41) are arranged at intervals and matched one by one with the eccentric blocks (4). The support block (41) is located below the eccentric block (4) corresponding to it, and a vertically arranged support spring (42) is connected between its upper end surface and the lower end surface of the eccentric block (4). A plurality of the support springs (42) are arranged in a circular array around the eccentric rod (2).

9. The annealing device suitable for aluminum coils of different specifications according to claim 7, characterized in that: The movable plates (6) other than the bottommost layer are vertically slidably mounted on the inner wall of the furnace (11); the inner wall of the furnace (11) is provided with movable grooves (111) vertically arranged near the two ends of the movable plates (6); movable blocks (9) are vertically slidably mounted in the movable grooves (111); the movable plates (6) are connected to the movable blocks (9) at the two ends of the movable plates (6) for positioning and rotation and are connected to a movable motor (62) for driving the movable plates to rotate; the movable blocks (9) are provided with a clearance groove (91) for cooperating with the movable motor (62).

10. The annealing device for aluminum coils of different specifications according to claim 9, characterized in that: The side wall of the moving block (9) is provided with a moving rack (92) which is vertically arranged and located in the moving groove (111); a lifting gear (93) which is located on one side of the moving rack (92) and meshes with the moving rack (92) is also installed in the moving groove (111) for positioning and rotation; the axis of the lifting gear (93) is perpendicular to the side wall of the furnace (11) where the moving groove (111) is located and is horizontally arranged; and a lifting motor (94) which drives the corresponding lifting gear (93) to position and rotate is installed on the outer wall of the furnace body (1).

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