A roller hearth aluminum alloy solution furnace

Abstract

This application relates to a roller hearth aluminum alloy solution furnace, comprising a furnace body with furnace doors at both the inlet and outlet ends. The furnace body is divided into a preheating chamber, a heating chamber, and a heat preservation chamber from the inlet to the outlet. Vertical sliding partition doors are installed at both ends of the heating chamber. A control device is provided on the furnace body to control the raising and lowering of the partition doors. Heating devices for heating the aluminum alloy frame are installed in the furnace body corresponding to the positions of the preheating chamber, heating chamber, and heat preservation chamber. Several conveying devices for conveying the aluminum alloy frame are also installed in the furnace body corresponding to the positions of the preheating chamber, heating chamber, and heat preservation chamber. This application reduces heat loss during the feeding or discharging process of the solution furnace and improves the thermal energy utilization rate of the solution furnace.

Description

Technical Field

[0001] This application relates to the field of solution furnaces, and more particularly to a roller hearth aluminum alloy solution furnace. Background Technology

[0002] Aluminum alloy solution treatment furnaces are mainly used for heating aluminum alloy workpieces during heat treatment. The aluminum alloy workpiece is an aluminum alloy frame. A heater is installed inside the solution treatment furnace. One end of the furnace is the inlet, and the other end is the outlet. Both the inlet and outlet are equipped with furnace doors. The operator opens the inlet door and uses a conveyor trolley to transport the aluminum alloy frame into the furnace for heating. After heating, the operator opens the outlet door and uses the conveyor trolley to transfer the heated aluminum alloy frame out of the furnace for quenching.

[0003] Regarding the aforementioned technologies, the inventors believe that when the solution furnace is being fed or unloaded, the furnace door needs to be opened, and the interior of the solution furnace is directly connected to the outside, resulting in a significant loss of heat and a reduction in thermal energy utilization. Summary of the Invention

[0004] In order to reduce heat loss during the feeding or discharging process of the solution furnace and improve the utilization rate of thermal energy, this application provides a roller hearth aluminum alloy solution furnace.

[0005] The technical solution of the roller hearth aluminum alloy solution furnace provided in this application is as follows:

[0006] A roller hearth aluminum alloy solution treatment furnace includes a furnace body. Both the inlet and outlet ends of the furnace body are equipped with furnace doors. The furnace body is divided into a preheating chamber, a heating chamber, and a heat preservation chamber from the inlet to the outlet. Each end of the heating chamber has a vertically sliding partition door. The furnace body is equipped with a control device for controlling the raising and lowering of the partition doors. Heating devices for heating aluminum alloy frames are provided in the furnace body corresponding to the positions of the preheating chamber, heating chamber, and heat preservation chamber. Several conveying devices for conveying the aluminum alloy frames are provided in the furnace body corresponding to the positions of the preheating chamber, heating chamber, and heat preservation chamber.

[0007] By adopting the above technical solution, when heat-treating the aluminum alloy frame, the operator opens the furnace door at the feeding end. The aluminum alloy frame enters the preheating chamber under the conveying action of the conveying device, and then the furnace door at the feeding end closes. The heating device preheats the aluminum alloy frame. The partition door near the preheating chamber opens, allowing the preheated aluminum alloy frame to enter the heating chamber under the action of the conveying device. After the aluminum alloy frame is conveyed, the partition door closes. The heating device in the heating chamber continuously heats the aluminum alloy frame to the temperature required for heat treatment. Under the action of the conveying device, the aluminum alloy frame in the heating chamber moves to the vicinity of the insulation chamber. Then, the operator uses the control device to move the partition door near the insulation chamber upwards and open it, allowing the heated aluminum alloy frame to enter the insulation chamber under the action of the conveying device. After the aluminum alloy frame is conveyed, the partition door closes. The heating device inside the insulation chamber continuously heats the aluminum alloy frame, maintaining it at the temperature required for heat treatment. The operator opens the furnace door at the discharge end, and under the action of the conveyor, the heated aluminum alloy frame enters the next quenching process. After the aluminum alloy frame is removed from the insulation chamber, the furnace door at the discharge end closes. The furnace door and the partition door do not open simultaneously. Both partition doors are closed during loading and unloading, while both furnace doors remain closed during the movement of the aluminum alloy frame from the preheating chamber to the heating chamber, or from the heating chamber to the insulation chamber. This reduces heat loss from the heating chamber during loading and unloading, improving the utilization rate of the furnace's thermal energy.

[0008] Optionally, the conveying device includes a support frame fixedly connected to the furnace body, a plurality of guide rollers rotatably connected to the support frame, each guide roller having a pulley fixedly connected to it coaxially, and adjacent pulleys being driven by a synchronous belt, and a first motor for driving one of the guide rollers to rotate is provided on the furnace body.

[0009] By adopting the above technical solution, the operator starts the first motor to drive the corresponding guide roller to rotate. Under the transmission action of the synchronous belt, the corresponding conveyor rollers rotate synchronously, thereby driving the aluminum alloy frame on the support frame to move.

[0010] Optionally, the furnace body is provided with two supports, each of which is rotatably connected to several sprockets. A chain is wound around the sprockets on the same support. The furnace body is provided with a second motor for controlling the rotation of one of the sprockets. Several guide posts are spaced apart along the outline of the chain. A guide rail with the same movement trajectory as the chain is fixedly connected to the support. Several slides are slidably arranged on the guide rail. The guide posts correspond one-to-one with the slides, and the guide posts are rotatably connected to the corresponding slides. Support rods for supporting the aluminum alloy frame slide through the slides. The support is provided with an adjustment unit for controlling the sliding of the support rods on the slides.

[0011] By adopting the above technical solution, within the heating chamber, the support rod is inserted between two adjacent aluminum alloy frames. The support rod not only supports the aluminum alloy frames but also assists them in moving within the furnace. The operator starts the second motor, which drives the corresponding sprocket to move, and in turn, the chain to move. Under the pushing action of the guide column, each slide table slides within the guide rail, causing the support rod to move synchronously with the aluminum alloy frame.

[0012] Optionally, the adjustment unit includes a push rod rotatably connected to the support rod, an end plate fixedly connected to the push rod, and a first track and a second track fixedly connected to the bracket for sliding the end plate. The first track is used to control the support rod to extend out of the slide, and the second track is used to control the support rod to retract into the slide. The first track and the second track are connected by a transition track.

[0013] By adopting the above technical solution, when the end plate is slidably set in the first track, the support rod extends out of the slide table, and when the end plate is slidably set in the second track, the support rod retracts into the slide table, thereby achieving the effect of controlling the extension and retraction of the support rod.

[0014] Optionally, the control device includes a traction rope fixedly connected to the furnace body, the other end of the traction rope being fixedly connected to the partition door, a slide block being slidably disposed on the furnace body, a traction wheel being rotatably connected to the slide block, the traction rope being wound around the traction wheel, and a first hydraulic cylinder being disposed on the furnace body for driving the slide block to move.

[0015] By adopting the above technical solution, the operator starts the first hydraulic cylinder to drive the traction wheel to move, and then controls the movement of the traction rope. When the traction rope is pulled up, it drives the partition door to move up and open. When the traction rope is moved down, the partition door moves down and closes under its own gravity.

[0016] Optionally, the furnace body is vertically fixedly connected to two slide rails corresponding to the position of the partition door. The partition door is slidably disposed between the two slide rails. Each of the two slide rails has a groove, and a crossbar is disposed in the groove. The partition door has a cavity, and clearance grooves communicating with the cavity are provided on both sides of the partition door. A locking block is hinged in the clearance groove. The locking block corresponds one-to-one with the crossbar. A sleeve rod is hinged on the locking block. An inner rod slides through the sleeve rod and is hinged to the inner wall of the cavity. A tension spring is provided between the inner wall of the cavity and the sleeve rod, and the tension spring pulls the sleeve rod, causing the locking block to be embedded in the groove. Control units for controlling the flipping of the locking block are provided on both sides of the furnace body.

[0017] By adopting the above technical solution, in the initial state, the tension spring pulls the sleeve rod, keeping the locking block retracted into the clearance groove so that the partition door can be raised and lowered. After the operator raises the partition door, the control unit is activated to drive the locking block to flip outward, so that the locking block is engaged above the corresponding crossbar, thereby restricting the partition door from moving downward and keeping the partition door in the open state. This reduces the continuous force on the first hydraulic cylinder when the partition door is open, which helps to extend the service life of the first hydraulic cylinder.

[0018] Optionally, the control unit includes a slider vertically sliding on the inner wall of the cavity, a support plate fixedly connected to the slider, an oblong hole on the support plate, a support rod fixedly connected to the sleeve rod, the support rod sliding through the oblong hole, a control rod fixedly connected to the slider, the control rod vertically arranged and sliding upward through the partition door, an insertion rod fixedly connected to one end of the control rod extending out of the partition door, a movable seat horizontally sliding on the top wall of the furnace body, an obliquely opened elongated hole for the insertion rod to be inserted on the movable seat, the lower end of the elongated hole being open, and a second hydraulic cylinder for controlling the movement of the movable seat on the furnace body.

[0019] By adopting the above technical solution, in the initial state, the opening at the lower end of the elongated hole is aligned with the insertion rod. After the partition door is raised, the insertion rod is inserted into the elongated slot. The operator activates the second hydraulic cylinder to drive the moving seat to slide, causing the insertion rod to move to the upper end of the elongated hole. During this process, the control rod moves upward, and the movement of the control rod drives the slider and the support plate to move upward synchronously. Since the support rod is inserted into the waist-shaped hole, the sleeve rod is raised and slides relative to the inner rod. During the raising of the sleeve rod, the locking block is pushed out of the corresponding clearance slot. The locking block is engaged with the upper part of the crossbar, so that the partition door is kept in the raised state. By engaging with the crossbar, the entire partition door is supported, reducing the direct force on the second hydraulic cylinder when the first hydraulic cylinder is in the raised state.

[0020] Optionally, a lifting plate is vertically slidably provided on the top wall of the furnace body, and the lifting plate is located between the two movable seats. A connecting rod is hinged to each of the two movable seats on the lifting plate, and the connecting rod is hinged to the corresponding movable seat. The second hydraulic cylinder is fixedly connected to the top wall of the furnace body, and the piston rod of the second hydraulic cylinder is fixedly connected to the lifting plate.

[0021] By adopting the above technical solution, the operator starts the second hydraulic cylinder to drive the lifting plate to rise and fall. Under the action of the connecting rod, the two moving seats slide synchronously to control the control rods on both sides of the partition door to move synchronously, thereby achieving the effect of synchronous extension and retraction of the locking blocks on both sides of the partition door.

[0022] Optionally, the heating device includes an air distribution plate fixedly connected to the furnace body, the air distribution plate having several through holes for ventilation, the air distribution plate and the top wall of the furnace body forming a hot air cavity, and the furnace body having several burners fixedly connected inside the hot air cavity.

[0023] By adopting the above technical solution, the operator starts the burner to heat the gas in the hot air chamber. The heated gas enters the preheating chamber, heating chamber, or insulation chamber through the through holes on the air distribution plate, thereby heating the aluminum alloy frame.

[0024] Optionally, the furnace body is provided with several circulating fans for driving the gas flow in the hot air chamber.

[0025] By adopting the above technical solution and setting up a circulating fan, circulating air is formed in the hot air cavity, thereby making the temperature in the hot air cavity uniform and improving the heating effect on the aluminum alloy frame.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The furnace door and partition door will not open at the same time. When the furnace body is being loaded and unloaded, both partition doors are closed. When the aluminum alloy frame moves from the preheating chamber to the heating chamber, or from the heating chamber to the insulation chamber, both furnace doors are closed. This reduces heat loss in the heating chamber when the furnace body is being loaded and unloaded, which helps to improve the utilization rate of the furnace body's thermal energy.

[0028] 2. By engaging the locking block above the corresponding crossbar, the downward movement of the partition door is restricted, keeping the partition door in the open state. This reduces the continuous force on the first hydraulic cylinder when the partition door is open, which helps to extend the service life of the first hydraulic cylinder.

[0029] 3. Inside the heating chamber, the support rod is inserted between two adjacent aluminum alloy frames. The support rod not only supports the aluminum alloy frames but also assists the aluminum alloy frames in moving within the furnace. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0031] Figure 2 This is a cross-sectional view used in the embodiments of this application to illustrate the preheating cavity, heating cavity, and insulation cavity.

[0032] Figure 3 This is a cross-sectional view used to illustrate the heating device in the embodiments of this application.

[0033] Figure 4 This is a schematic diagram illustrating the structure of a partition door in an embodiment of this application.

[0034] Figure 5 yes Figure 4 An enlarged schematic diagram of part A in the middle.

[0035] Figure 6 yes Figure 1 Enlarged schematic diagram of part B.

[0036] Figure 7 This is a schematic diagram illustrating the structure of the sprocket and chain in an embodiment of this application.

[0037] Figure 8 yes Figure 3 An enlarged schematic diagram of section C.

[0038] Figure 9 This is a schematic diagram illustrating the structure of the slide table in an embodiment of this application.

[0039] Figure 10 This is a schematic diagram illustrating the structure of the support rod in an embodiment of this application.

[0040] Figure 11 This is a schematic diagram illustrating the structure of the first track, the second track, and the transition track in an embodiment of this application.

[0041] Explanation of reference numerals in the attached drawings: 1. Furnace body; 11. Furnace door; 111. Winch; 12. Feed end; 13. Discharge end; 14. Preheating chamber; 15. Heating chamber; 16. Insulation chamber; 2. Partition door; 22. Insulation box; 23. Slide rail; 3. Heating device; 31. Air distribution plate; 32. Hot air chamber; 33. Burner; 34. Circulating fan; 4. Control device; 41. Mounting bracket; 42. Slide seat; 43. First hydraulic cylinder; 44. Traction wheel; 45. Guide wheel; 46. Traction rope; 5. Cavity; 51. Relief groove; 52. Locking block; 53. Embedded groove; 54. Crossbar; 541. Baffle; 55. Sleeve rod; 56. Inner rod; 57. Ear plate; 58. Limiting ring; 59. Tension spring; 6. Control unit; 61. Slide rail 62. Block; 63. Support plate; 64. Waist-shaped hole; 65. Support rod; 66. Moving seat; 67. Long hole; 68. Insert rod; 69. Lifting plate; 60. Connecting rod; 61. Second hydraulic cylinder; 62. Control rod; 73. Conveying device; 74. Support frame; 75. Guide roller; 76. Pulley; 77. Synchronous belt; 88. First motor; 99. Bracket; 80. Sprocket; 81. Second motor; 82. Chain; 83. Guide column; 84. Guide rail; 85. First guide groove; 86. Slide table; 87. Limiting plate; 88. Sleeve; 99. Support rod; 90. Adjusting unit; 91. First track; 92. Second track; 93. Transition track; 94. Push rod; 95. End plate; 96. Second guide groove; 97. Transition guide groove. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1-11 This application will be described in further detail.

[0043] This application discloses a roller hearth aluminum alloy solution treatment furnace. For example... Figure 1 and Figure 2 The roller hearth aluminum alloy solution treatment furnace includes a horizontally arranged elongated cylindrical furnace body 1. Furnace doors 11 are vertically slidable at both ends of the furnace body 1 along its length. A winch 111 is installed on the furnace body 1 to pull the furnace doors 11 up and down. One end of the furnace body 1 is a feeding end 12, and the other end is a discharging end 13. The furnace body 1 is divided sequentially from the feeding end 12 to the discharging end 13 into a preheating chamber 14, a heating chamber 15, and a heat preservation chamber 16.

[0044] like Figure 2 and Figure 3 Each chamber of the furnace body 1 is equipped with a heating device 3. The heating device 3 includes a horizontally fixed air distribution plate 31 connected to the furnace body 1 near the inner top wall. The air distribution plate 31 has several through holes for ventilation. The air distribution plate 31 and the inner top wall of the furnace body 1 form a hot air cavity 32. Each hot air cavity 32 is closed at both ends along the length of the furnace body 1, and the hot air cavities 32 corresponding to the preheating cavity 14, heating cavity 15 and heat preservation cavity 16 are not interconnected.

[0045] Each hot air chamber 32 of the furnace body 1 is fixedly connected to several burners 33. The burners 33 in the same hot air chamber 32 are evenly arranged along the length of the furnace body 1. The burners 33 are used to heat the gas in the hot air chamber 32. Several circulating fans 34 are fixedly connected to the upper surface of the furnace body 1 corresponding to the positions of each hot air chamber 32. The circulating fans 34 are used to promote the circulation of gas in the hot air chamber 32, so that the temperature in each hot air chamber 32 is uniform. The setting of circulating fans 34 helps to improve the heating effect of the aluminum alloy frame in each chamber.

[0046] like Figure 2 and Figure 4 The furnace body 1 has partition doors 2 at both ends of the heating chamber 15 for sealing the heating chamber 15. A through hole is provided on the top surface of the furnace body 1 corresponding to the two partition doors 2. An insulation box 22 is fixedly connected to the top surface of the furnace body 1 corresponding to the through hole to cover the through hole, and the insulation box 22 is in communication with the interior of the furnace body 1. Two slide rails 23 are vertically fixedly connected to the inner wall of the furnace body 1 corresponding to the partition doors 2. The two slide rails 23 are spaced apart along the width of the furnace body 1, and the upper ends of both slide rails 23 extend into the corresponding insulation box 22. The partition doors 2 slide vertically between the two slide rails 23.

[0047] like Figure 1 and Figure 4The furnace body 1 is equipped with a control device 4 for controlling the raising and lowering of the partition door 2. The control device 4 includes a mounting bracket 41 fixedly connected to the insulation box 22, and a slide block 42 is slidably mounted on the upper surface of the mounting bracket 41 along the length direction of the furnace body 1. A first hydraulic cylinder 43 is fixedly connected to the upper surface of the slide block 42, and the piston rod of the first hydraulic cylinder 43 is fixedly connected to the mounting bracket 41. Traction wheels 44 are symmetrically arranged on the upper surface of the slide block 42 along the width direction of the furnace body 1. The two traction wheels 44 are coaxially arranged, and the axis of the traction wheels 44 is parallel to the width direction of the furnace body 1. Two guide wheels 45 are rotatably connected to the top of the insulation box 22, and the guide wheels 45 correspond one-to-one with the traction wheels 44. Traction ropes 46 are wound around the traction wheels 44 and the corresponding guide wheels 45. One end of the traction rope 46 is fixedly connected to the insulation box 22, and the other end of the traction rope 46 passes through the upper surface of the insulation box 22 and is fixedly connected to the top wall of the partition door 2.

[0048] like Figure 4 The partition door 2 has a cavity 5 inside. On both sides of the partition door 2 along the width direction of the furnace body 1, there are clearance grooves 51 communicating with the cavity 5. A locking block 52 is hinged to the clearance groove 51 via a pivot, with the pivot located above the locking block 52. Each of the two slide rails 23 has a groove 53 on its opposite surface, and a crossbar 54 for locking the locking block 52 is fixedly connected to each groove 53. When the partition door 2 is in the raised state, the locking block 52 is positioned just above the corresponding crossbar 54. A baffle 541 is fixedly connected to the locking block 52 inside the cavity 5. The baffle 541 restricts the locking block 52 from completely flipping out of the clearance groove 51. When the baffle 541 abuts against the side wall near the clearance groove 51, the locking block 52 extends out of the clearance groove 51. A sleeve rod 55 is hinged to the side of the locking block 52 facing the cavity 5. The ends of the two sleeve rods 55 that are close to each other are inclined upwards. An inner rod 56 slides through the sleeve rod 55. The end of the inner rod 56 away from the corresponding locking block 52 extends out of the sleeve rod 55, and an ear plate 57 is hinged to the end of the inner rod 56 extending out of the sleeve rod 55. The ear plate 57 is fixedly connected to the inner wall of the cavity 5. A limiting ring 58 for the sleeve rod 55 to abut against is fixedly connected to the inner rod 56. When the sleeve rod 55 abuts against the limiting ring 58, the locking block 52 retracts into the relief groove 51. A tension spring 59 is fixedly connected between the ear plate 57 and the sleeve rod 55, and the tension spring 59 pulls the sleeve rod 55 to abut against the corresponding limiting ring 58.

[0049] like Figure 4 and Figure 5The insulation box 22 is equipped with a control unit 6 for controlling the flipping of two locking blocks 52. The control unit 6 includes two sliders 61 that are vertically slidably disposed within the cavity 5. A support plate 62 is fixedly connected to each slider 61, and the support plate 62 has an oblong hole 63. The length direction of the oblong hole 63 is parallel to the width direction of the furnace body 1. A support rod 64 is fixedly connected to the sleeve rod 55, and the support rod 64 is slidably disposed within the oblong hole 63. A control rod 68 is vertically fixedly connected to the upper end of each slider 61, and both control rods 68 slide upward through the top wall of the partition door 2. Two movable seats 65 are slidably disposed on the inner top wall of the insulation box 22 along the width direction of the furnace body 1. The movable seats 65 correspond one-to-one with the control rods 68. An elongated hole 66 is provided on each movable seat 65. Both elongated holes 66 are Z-shaped, and the ends of the two elongated holes 66 that are close to each other are inclined upward. The lower ends of the two elongated holes 66 are open. Both control levers 68 have a fixedly connected insertion rod 67 for inserting into the elongated hole 66. When the two movable seats 65 approach each other, the open end of the elongated hole 66 is aligned with the corresponding insertion rod 67.

[0050] A lifting plate 671 is vertically slidable inside the insulation box 22, and the lifting plate 671 is located between two movable seats 65. Connecting rods 672 are hinged to the lifting plate 671 at positions facing the two movable seats 65, with the ends of the two connecting rods 672 closer to each other inclined downwards. The ends of the two connecting rods 672 furthest from the lifting plate 671 are hinged to the corresponding movable seats 65. A second hydraulic cylinder 673 is fixedly connected to the upper surface of the insulation box 22, and the piston rod of the second hydraulic cylinder 673 penetrates downwards through the insulation box 22 and is fixedly connected to the upper surface of the lifting plate 671.

[0051] During the lifting of partition door 2, the operator activates the first hydraulic cylinder 43 to move the slide 42 away from the corresponding insulation box 22. The movement of the slide 42 moves the traction wheel 44, thereby pulling the traction rope 46 and lifting partition door 2. When partition door 2 is fully lifted, the locking block 52 moves just above the corresponding crossbar 54, and both insert rods 67 are inserted into the corresponding elongated holes 66. The operator activates the second hydraulic cylinder 673 to lift the lifting plate 671, which in turn moves the two moving seats 65 away from each other. Guided by the elongated holes 66, the two insert rods 67 are lifted, which in turn causes the control rod 68 and the slider 61 to lift synchronously. Since the support rod 64 is inserted into the oblong hole 63 of the support plate 62, and the support plate 62 is fixedly connected to the slider 61, during the lifting of the slider 61, the support plate 62 drives the support rod 64 to move upward, which in turn drives the sleeve rod 55 to flip upward, causing the two locking blocks 52 to flip towards the corresponding crossbar 54 until the locking blocks 52 are supported above the crossbar 54. The crossbar 54 supports the locking blocks 52, thereby providing auxiliary support for the entire partition door 2, reducing the force on the first hydraulic cylinder 43, and helping to improve the service life of the first hydraulic cylinder 43.

[0052] During the downward movement of partition door 2, the operator activates the second hydraulic cylinder 673 to lower the lifting plate 671, thereby controlling the two moving seats 65 to move closer together. Guided by the elongated hole 66, the two control rods 68 and the slider 61 move down to their reset positions. With the cooperation of the support rod 64 and the oblong hole 63, the two sleeve rods 55 flip down to their reset positions, causing the locking block 52 to retract into the corresponding relief groove 51, releasing the support effect of the crossbar 54 on the locking block 52. Finally, the operator activates the first hydraulic cylinder 43 to reset the sliding seat 42, allowing partition door 2 to descend to its reset position under its own weight.

[0053] like Figure 2 and Figure 3 The furnace body 1 is equipped with conveying devices 7 for conveying aluminum alloy frames at the positions corresponding to the preheating chamber 14, heating chamber 15 and heat preservation chamber 16. One conveying device 7 corresponds to one aluminum alloy frame. There are three conveying devices 7 in the preheating chamber 14, twelve conveying devices 7 in the heating chamber 15, and one conveying device 7 in the heat preservation chamber 16. The conveying devices 7 are arranged sequentially along the length of the furnace body 1.

[0054] like Figure 3 and Figure 6 The conveying device 7 includes a support frame 71 fixedly connected inside the furnace body 1. A plurality of guide rollers 72 are rotatably connected to the upper surface of the support frame 71 via rotating shafts. Each guide roller 72 is coaxially fixedly connected to its corresponding rotating shaft. The guide rollers 72 are evenly arranged along the length of the furnace body 1, and the axial direction of each guide roller 72 is parallel to the width direction of the furnace body 1. Each rotating shaft extends out of the furnace body 1 at both ends, and a pulley 73 is coaxially fixedly connected to one end of each rotating shaft. A synchronous belt 74 is wound between adjacent pulleys 73, causing the guide rollers 72 on the same support frame 71 to rotate synchronously. A first motor 75 is fixedly connected to the outer wall of the furnace body 1 at the corresponding position of each support frame 71, and the output shaft of each first motor 75 is coaxially fixedly connected to one of the rotating shafts of the corresponding support frame 71.

[0055] like Figure 3 and Figure 7Each furnace body 1 has two supports 8 within the heating chamber 15. These supports 8 are symmetrically arranged along the width of the furnace body 1 and are fixedly connected to the inner wall of the furnace body 1. Four sprockets 81 are rotatably connected to each of the two supports 8. These four sprockets 81 are arranged in a matrix, and the axis of each sprocket 81 is parallel to the width of the furnace body 1. A second motor 82 is fixedly connected to each of the supports 8 on both sides of the furnace body 1, and the second motor 82 is coaxially fixedly connected to one of the sprockets 81 of the corresponding support 8. A chain 83 for transmission is wound around the four sprockets 81 on the same support 8. The chain 83 forms a vertically arranged rectangular ring, with the length of the rectangular ring parallel to the length of the furnace body 1 and the width of the rectangular ring parallel to the height of the furnace body 1. The rectangular ring is located between the support frames 71 at both ends within the heating chamber 15.

[0056] like Figure 8 and Figure 9 A chain 83 is fixedly connected to several guide posts 84, which are spaced apart around their own contours. Two supports 8 are fixedly connected to guide rails 85 with the same movement trajectory as the chain 83 on their opposite surfaces. Each guide rail 85 has a corresponding slide 87 at each guide post 84 position, and each guide post 84 is rotatably connected to its corresponding slide 87. Each of the two guide rails 85 has a first guide groove 86 with a T-shaped cross-section on its opposite sides. Each slide 87 has two fixedly connected disc-shaped limiting plates 88, which are slidably positioned within the first guide groove 86. Each slide 87 has a fixedly connected sleeve 89, whose axis is parallel to the width direction of the furnace body 1. Each sleeve 89 has a sliding support rod 891, and the supports 8 are equipped with an adjustment unit 9 for controlling the extension and retraction of the support rod 891 within the sleeve 89.

[0057] like Figure 10 and Figure 11 The adjustment unit 9 includes a first track 91 and a second track 92 fixedly connected to the bracket 8. The first track 91 is located above the second track 92, and both the first track 91 and the second track 92 are located on the side of the guide rail 85 near the first guide groove 86. The first track 91 is I-shaped, and the second track 92 is U-shaped. The first track 91 and the second track 92 are connected to form a closed loop by a transition track 93.

[0058] like Figure 9 Each support rod 891 is rotatably connected to a push rod 94 at one end facing the first track 91 and the second track 92, and each push rod 94 is fixedly connected to an end plate 95.

[0059] like Figure 10 and Figure 11Both the first track 91 and the second track 92 have second guide grooves 96 for sliding the end plate 95, and the cross-section of the second guide grooves 96 is T-shaped. The transition track 93 has a transition guide groove 97 for connecting the two second guide grooves 96, and the cross-section of the transition guide groove 97 is also T-shaped. When the end plate 95 is located in the second guide groove 96 corresponding to the first track 91, the support rod 891 is in the extended sleeve 89 state; when the end plate 95 is located in the second guide groove 96 corresponding to the second track 92, the support rod 891 is in the retracted sleeve 89 state.

[0060] The operator starts the second motor 82, which drives the corresponding sprocket 81 to rotate, thereby moving the chain 83 and causing each slide 87 to slide around its corresponding guide rail 85. During the movement of each slide 87, each support rod 891 corresponding to the first track 91 extends out of its corresponding sleeve 89, with a gap between adjacent extended support rods 891 to accommodate the aluminum alloy frame. The support rods 891 move synchronously with the aluminum alloy frame, providing support and assisting the conveying device 7 in transporting the aluminum alloy frame.

[0061] The implementation principle of this application embodiment is as follows: During the heat treatment of the aluminum alloy frame by the operator, the aluminum alloy frame is first preheated in the preheating chamber 14, and then the aluminum alloy frame is moved to the heating chamber 15 and heated to the preset temperature. After the heating is completed, the aluminum alloy frames are moved one by one to the heat preservation chamber 16 to wait for quenching treatment.

[0062] The specific actions are as follows: The operator opens the partition door 2 near the insulation chamber 16, allowing the aluminum alloy frame to move into the insulation chamber 16 under the action of the corresponding conveying device 7 to await quenching. After the movement of the aluminum alloy frame is completed, the operator closes the partition door 2 near the insulation chamber 16. The aluminum alloy frame is kept at the ideal temperature in the insulation chamber 16. During quenching, the operator opens the furnace door 11 at the discharge end 13 and moves the aluminum alloy frame outside the insulation chamber 16. After the movement of the aluminum alloy frame is completed, the operator closes the furnace door 11 near the discharge end 13.

[0063] After an aluminum alloy frame is removed from the heating chamber 15, the operator activates the various conveying devices 7 within the heating chamber 15, moving the aluminum alloy frame towards the insulation chamber 16 by a distance equal to the length of an aluminum alloy frame, thus creating a space equal to the length of an aluminum alloy frame at the end of the heating chamber 15 closest to the preheating chamber 14. Then, the operator opens the partition door 2 closest to the preheating chamber 14. Under the action of the corresponding conveying device 7, the aluminum alloy frame from the preheating chamber 14 closest to the heating chamber 15 moves into the heating chamber 15 for heating. After the aluminum alloy frame movement is complete, the operator closes the corresponding partition door 2.

[0064] The operator then controls the movement of each conveyor device 7 within the preheating chamber 14, causing each aluminum alloy frame within the preheating chamber 14 to move a distance equal to the distance between the preheating chamber 14 and the heating chamber 15, thus creating an empty space for an aluminum alloy frame at the end of the preheating chamber 14 furthest from the heating chamber 15. Finally, the operator opens the furnace door 11 at the feeding end 12, moving the external aluminum alloy frame to be heated into the preheating chamber 14 via the corresponding conveyor device 7 for preheating. After the aluminum alloy frame movement is complete, the operator closes the furnace door 11 at the feeding end 12.

[0065] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A roller hearth aluminum alloy solution treatment furnace, characterized in that: The furnace includes a furnace body (1), and both the feed end (12) and the discharge end (13) of the furnace body (1) are provided with furnace doors (11). The furnace body (1) is divided into a preheating chamber (14), a heating chamber (15) and a heat preservation chamber (16) from the feed end (12) to the discharge end (13). Both ends of the heating chamber (15) are vertically slidable partition doors (2). The furnace body (1) is provided with a control device (4) for controlling the lifting and lowering of the partition doors (2). The furnace body (1) is provided with heating devices (3) for heating the aluminum alloy frame at the positions corresponding to the preheating chamber (14), the heating chamber (15) and the heat preservation chamber (16). The furnace body (1) is provided with several conveying devices (7) for conveying the aluminum alloy frame at the positions corresponding to the preheating chamber (14), the heating chamber (15) and the heat preservation chamber (16). The furnace body (1) is provided with two supports (8), and several sprockets (81) are rotatably connected to each of the two supports (8). A chain (83) is wound around several sprockets (81) on the same support (8). The furnace body (1) is provided with a second motor (82) for controlling the rotation of one of the sprockets (81). Several guide posts (84) are spaced apart along the contour of the chain (83). A guide rail (85) with the same movement trajectory as the chain (83) is fixedly connected to the support (8). Several slides (87) are slidably arranged on the guide rail (85). The guide posts (84) correspond one-to-one with the slides (87), and the guide posts (84) are rotatably connected to the corresponding slides (87). A support rod (891) for supporting the aluminum alloy frame is slidably passed through the slide (87). An adjustment unit (9) for controlling the sliding of the support rod (891) on the slide (87) is provided on the support (8). The adjustment unit (9) includes a push rod (94) rotatably connected to the support rod (891), an end plate (95) fixedly connected to the push rod (94), and a first track (91) and a second track (92) fixedly connected to the bracket (8) for sliding the end plate (95). The first track (91) is used to control the support rod (891) to extend out of the slide (87), and the second track (92) is used to control the support rod (891) to retract into the slide (87). The first track (91) and the second track (92) are connected by a transition track (93).

2. The roller hearth aluminum alloy solution treatment furnace according to claim 1, characterized in that: The conveying device (7) includes a support frame (71) fixedly connected to the furnace body (1). Several guide rollers (72) are rotatably connected to the support frame (71). Each guide roller (72) is coaxially fixedly connected to a pulley (73), and adjacent pulleys (73) are driven by a synchronous belt (74). The furnace body (1) is provided with a first motor (75) for driving one of the guide rollers (72) to rotate.

3. The roller hearth aluminum alloy solution treatment furnace according to claim 1, characterized in that: The control device (4) includes a traction rope (46) fixedly connected to the furnace body (1), the other end of the traction rope (46) being fixedly connected to the partition door (2), a slide block (42) being slidably provided on the furnace body (1), a traction wheel (44) being rotatably connected on the slide block (42), the traction rope (46) being wound around the traction wheel (44), and a first hydraulic cylinder (43) being provided on the furnace body (1) for driving the slide block (42) to move.

4. The roller hearth aluminum alloy solution treatment furnace according to claim 1, characterized in that: The furnace body (1) is vertically fixedly connected to two slide rails (23) corresponding to the position of the partition door (2). The partition door (2) is slidably disposed between the two slide rails (23). Each of the two slide rails (23) has a groove (53) inside. A crossbar (54) is provided in the groove (53). The partition door (2) has a cavity (5). Both sides of the partition door (2) have clearance grooves (51) communicating with the cavity (5). A locking block (52) is hinged in the clearance groove (51). The locking block (52) is connected to the cavity (51). The crossbars (54) correspond one-to-one. A sleeve rod (55) is hinged on the locking block (52). An inner rod (56) slides through the sleeve rod (55). The inner rod (56) is hinged to the inner wall of the cavity (5). A tension spring (59) is provided between the inner wall of the cavity (5) and the sleeve rod (55). The tension spring (59) pulls the sleeve rod (55) and causes the locking block (52) to be embedded in the groove (53). Control units (6) for controlling the flipping of the locking block (52) are provided on both sides of the furnace body (1).

5. A roller hearth aluminum alloy solution treatment furnace according to claim 4, characterized in that: The control unit (6) includes a slider (61) vertically sliding on the inner wall of the cavity (5), a support plate (62) fixedly connected to the slider (61), an oblong hole (63) on the support plate (62), a support rod (64) fixedly connected to the sleeve rod (55), the support rod (64) slidingly passing through the oblong hole (63), and a control rod (68) fixedly on the slider (61), the control rod (68) being vertically arranged and sliding upward. Through the partition door (2), the control rod (68) is fixedly connected to one end of the partition door (2). A movable seat (65) is horizontally slidably arranged on the top wall of the furnace body (1). An elongated hole (66) for inserting the plug rod (67) is obliquely opened on the movable seat (65). The lower end of the elongated hole (66) is open. A second hydraulic cylinder (673) for controlling the movement of the movable seat (65) is provided on the furnace body (1).

6. A roller hearth aluminum alloy solution treatment furnace according to claim 5, characterized in that: A lifting plate (671) is vertically slidably installed on the top wall of the furnace body (1), and the lifting plate (671) is located between the two movable seats (65). A connecting rod (672) is hinged on the lifting plate (671) at the position corresponding to the two movable seats (65). The connecting rod (672) is hinged to the corresponding movable seat (65). The second hydraulic cylinder (673) is fixedly connected to the top wall of the furnace body (1), and the piston rod of the second hydraulic cylinder (673) is fixedly connected to the lifting plate (671).

7. A roller hearth aluminum alloy solution treatment furnace according to claim 1, characterized in that: The heating device (3) includes an air distribution plate (31) fixedly connected to the furnace body (1). The air distribution plate (31) has several through holes for ventilation. The air distribution plate (31) and the top wall of the furnace body (1) form a hot air cavity (32). The furnace body (1) has several burners (33) fixedly connected in the hot air cavity (32).

8. A roller hearth aluminum alloy solution treatment furnace according to claim 7, characterized in that: The furnace body (1) is provided with several circulating fans (34) for driving the gas flow in the hot air cavity (32).

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