Energy-saving double-car alternating operation annealing furnace

Abstract

The utility model relates to heat treatment equipment technical field discloses an energy -saving double -car alternating operation annealing furnace, including the car of furnace body and setting at both sides of furnace body, the track is fixedly installed in both sides bottom of furnace body, the car is installed on the track, both sides of furnace body all are set up the furnace mouth, the car passes through the furnace mouth and enters the furnace body, both sides of furnace body all are provided with furnace door and the lifting mechanism of driving furnace door lifting, the car is placed with a plurality of hoppers, the material rack of bearing hopper is provided on the furnace body, the material rack is provided with driving piece, drives material rack extension. The application is through setting the extensible material rack on the car, the material rack in unfolded state after material processing is completed, in the process of withdrawing from the furnace body, the ventilation space at the furnace mouth is reduced, thereby reducing the heat loss in the furnace body, the quantity of the material loaded on the car needs to be controlled, when the quantity is insufficient, the ventilation space at the furnace mouth is too large in the process that the car is separated from the furnace mouth, the heat loss in the furnace, the problem of energy consumption increase is solved.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment equipment technology, and in particular to an energy-saving dual-carriage alternating operation annealing furnace. Background Technology

[0002] The bogie hearth furnace is a national standard energy-saving periodic furnace. It adopts composite fiber insulation material and automatic sealing technology, has an ultra-energy-saving structure and does not require foundation installation. The equipment consists of a welded steel plate furnace body, a heat-resistant steel furnace bottom plate, a spiral heating element and a labyrinth sealing structure. The working temperature can reach 1200℃. It is suitable for quenching, annealing and aging treatment of metal parts such as high chromium / high manganese steel castings, gray cast iron parts and ductile iron parts. The conventional operation of the bogie hearth furnace is as follows: First, the workpieces are evenly and stably placed on the bogie hearth furnace plate. The bogie travel motor is started, and the fully loaded bogie is slowly and stably driven into the furnace chamber until the bogie is completely closed with the furnace body. The sealing mechanism is operated to ensure that the furnace door is tightly sealed. The heating process curve is set on the control cabinet, and then the heating is started. After the heating program is completed, after the furnace temperature drops to a safe temperature, the sealing mechanism is released, the bogie motor is started, and the bogie is slowly moved out of the furnace. Finally, the workpieces on the bogie hearth furnace plate are transported by a crane.

[0003] The furnace door of the double-headed bogie hearth furnace is a double-opening type, with two charging bogies working alternately. During the charging process, the workpieces need to be evenly stacked on the furnace plate. When there are too many workpieces on the furnace plate, they are prone to colliding with the furnace opening. When there are too few workpieces on the furnace plate, it will reduce the working efficiency of the bogie hearth furnace. At the same time, too few workpieces will result in too much ventilation space at the furnace opening when the bogie leaves the furnace opening, which will lead to heat loss in the furnace and increase the energy consumption of the bogie hearth furnace. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an energy-saving dual-carriage alternating operation annealing furnace.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an energy-saving double-trolley alternating operation annealing furnace, comprising a furnace body and trolleys disposed on both sides of the furnace body, with rails fixedly installed at the bottom of both sides of the furnace body, the trolleys mounted on the rails, furnace openings on both sides of the furnace body, the trolleys entering the furnace body through the furnace openings, and furnace doors and lifting mechanisms for driving the furnace doors to rise and fall on both sides of the furnace body.

[0006] The trolley is equipped with multiple hoppers, and the furnace body is equipped with a rack to support the hoppers. The rack is equipped with a drive unit to expand the rack.

[0007] After one of the trolleys drives the loaded hopper into the furnace body, the drive unit drives the material rack to expand, so that gaps are created between the multiple hoppers. The drive unit on the other trolley drives the material rack to expand, and the hopper filled with material is placed on the material rack. After the material in the hopper is processed, the material rack on the trolley moves outward in an expanded state and exits the furnace body.

[0008] As a further description of the above technical solution:

[0009] A pair of guide rods are provided on both sides of the furnace body. A guide groove is opened on one side of each guide rod. The two guide rods are respectively located on both sides of the furnace opening. The furnace door is slidably disposed between the two guide rods through the guide groove. An inclined guide opening is opened on one side of each guide rod. Support rods are fixedly connected to both sides of the furnace door. The support rods fit into the inclined guide openings so that when the support rods are located at the inclined guide openings, the furnace door closes the furnace opening.

[0010] As a further description of the above technical solution:

[0011] The lifting mechanism includes a reel, and supports are fixedly connected to both sides of the top of the furnace body. A rotating rod is rotatably connected to the supports via bearings. Two reels are fixedly mounted on the rotating rod. A steel wire rope is wound on the reels. A hook is fixedly connected to one end of the steel wire rope and hangs on the support rod. An upper drive motor is fixedly connected to both sides of the top of the furnace body. An upper sprocket is fixedly connected to the output end of the upper drive motor and one end of the rotating rod. An upper chain is engaged on the two upper sprockets.

[0012] As a further description of the above technical solution:

[0013] The trolley includes a support base, a buffer plate fixedly installed on one side of the support base, and a mounting box fixedly installed on one side of the buffer plate. The bottom sides of the support base are rotatably connected to axles via bearings. Guide wheels are fixedly connected to both ends of the axles. The guide wheels are slidably mounted on a track. A lower drive motor is fixedly connected inside the mounting box. A lower sprocket is fixedly connected to the output end of the lower drive motor and one of the axles. A lower chain meshes on the two lower sprockets.

[0014] As a further description of the above technical solution:

[0015] The material rack includes three layers of combined material plates, each including a middle plate and two side plates. A set of inserts is fixedly connected to both sides of the middle plate. Each side plate has an insertion port at both ends on one side, and the inserts fit into the insertion ports. Rectangular sliding grooves are provided on both sides of the top of the support base. Fixed plates are fixedly connected to both sides of the rectangular sliding grooves, and movable plates are slidably connected to both sides of the rectangular sliding grooves. The top of the fixed plates and movable plates are provided with slots. At the bottom of the connection between the middle plate and the two side plates that are attached to the top surface of the support base, a locking block is fixedly connected. The locking block is sleeved with the fixed plate and the movable plate through the slot.

[0016] As a further description of the above technical solution:

[0017] The driving component includes a movable rod, with screws fixedly connected to both ends of the movable rod. A fixed plate is sleeved on the movable rod, and a threaded groove is provided on the movable plate. The movable plate is threadedly connected to the screws through the threaded groove, so that when the movable rod drives the two screws to rotate, the two movable plates move in opposite directions. A servo motor is fixedly connected inside the bearing seat, and the output end of the servo motor is fixedly connected to one end of one of the screws.

[0018] As a further description of the above technical solution:

[0019] The driving component also includes a vertical rod, which is rotatably mounted on a middle plate that fits against the top surface of the support seat via a bearing. Two collinear threaded rods are fixedly connected to the top of the vertical rod, and the two threaded rods pass through the other two middle plates. Threaded sleeves are fixedly connected to the bottom of each of the other two middle plates, and the threaded sleeves are threadedly connected to the two threaded rods. A bevel gear set is fixedly connected between the bottom of the vertical rod and the middle of the movable rod, so that when the movable rod rotates, it drives the two threaded rods to rotate, thereby driving the two middle plates to move upward synchronously.

[0020] As a further description of the above technical solution:

[0021] In one of the combined material plates, the top and bottom of two side plates are fixedly connected to limit sleeves, and a limit rod is fitted inside the limit sleeve. The limit rod is fixedly connected to the side plates of the other two combined material plates.

[0022] As a further description of the above technical solution:

[0023] The combined material plate has multiple mounting slots, and the multiple hoppers are respectively installed in the multiple mounting slots.

[0024] This utility model has the following beneficial effects:

[0025] 1. In this utility model, by setting an expandable material rack on the trolley, the quantity of materials to be processed on a single trolley is limited, thereby preventing the materials on the trolley from colliding with the furnace opening due to overloading. At the same time, during the furnace process, the material rack is in an extended state. After the materials are processed, the extended material rack reduces the ventilation space at the furnace opening as it passes through and exits the furnace body, thereby reducing heat loss within the furnace. This solves the problem that the quantity of materials loaded on the trolley needs to be controlled, and when the quantity is insufficient, the ventilation space at the furnace opening is too large during the trolley's detachment from the furnace, resulting in heat loss and increased energy consumption.

[0026] 2. In this utility model, by setting an expandable and retractable material rack on the trolley, the material rack restricts and fixes the material on the rack when it retracts, preventing the material on the rack from shaking and tilting or collapsing during the movement of the trolley. At the same time, when the rack is extended, it creates a gap between each hopper, avoiding the workpieces being too close together, which would prevent the hot air from flowing evenly and affect the heating effect. In addition, the reasonable gap can reduce the heat conduction resistance, improve the heating uniformity, and avoid the problems of local overheating or uneven temperature.

[0027] 3. In this utility model, the combined material plate is designed to be detachable, so that multiple long strips of material can be placed on each of the middle plate and the side plate. This allows the device to process larger materials that are difficult to place in the hopper. At the same time, the installation grooves on the middle plate and the side plate can limit the placement of multiple hoppers, so that the device can process smaller materials that are difficult to stack and can only be held in the hopper, thus realizing the diversification of material processing. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of an energy-saving dual-cart alternating operation annealing furnace proposed in this utility model;

[0029] Figure 2 This utility model provides a schematic diagram of the lifting mechanism and furnace door structure of an energy-saving dual-cart alternating operation annealing furnace.

[0030] Figure 3 for Figure 2 Schematic diagram of the structure of section A;

[0031] Figure 4 This is a three-dimensional structural diagram of the trolley of an energy-saving double-trolley alternating operation annealing furnace proposed in this utility model;

[0032] Figure 5 This is a schematic diagram of the bottom structure of the trolley of an energy-saving double-trolley alternating operation annealing furnace proposed in this utility model;

[0033] Figure 6 for Figure 5 Schematic diagram of section B in the middle;

[0034] Figure 7 This is a schematic diagram of the drive component structure of an energy-saving dual-cart alternating operation annealing furnace proposed in this utility model;

[0035] Figure 8 for Figure 7 Schematic diagram of the C-section structure.

[0036] Legend:

[0037] 1. Furnace body; 2. Trolley; 21. Support seat; 22. Buffer plate; 23. Mounting box; 24. Axle; 25. Guide wheel; 26. Lower drive motor; 27. Lower sprocket; 28. Lower chain; 3. Track; 4. Furnace opening; 5. Furnace door; 6. Lifting mechanism; 61. Winding reel; 62. Bracket; 63. Rotating rod; 64. Wire rope; 65. Hook; 66. Upper drive motor; 67. Upper sprocket; 68. Upper chain; 7. Hopper; 8. Material rack; 80. Combined material plate; 801. Middle plate; 802. Side plate; 803. Insert strip; 804. Insertion port; 805. Rectangular slide groove; 806. Fixed plate; 807. Movable plate; 808. Slot; 809. Locking block; 810. Limiting sleeve; 811. Limiting rod; 812. Mounting groove; 9. Drive component; 91. Movable rod; 92. Screw; 93. Servo motor; 94. Vertical rod; 95. Threaded rod; 96. Threaded sleeve; 97. Bevel gear set; 10. Guide rod; 11. Guide groove; 12. Inclined guide opening; 13. Support rod. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Reference Figure 1-8 An embodiment of this utility model is provided: an energy-saving double-trolley alternating operation annealing furnace, including a furnace body 1 and trolleys 2 arranged on both sides of the furnace body 1. Tracks 3 are fixedly installed at the bottom of both sides of the furnace body 1, and the trolleys 2 are installed on the tracks 3. Furnace openings 4 are provided on both sides of the furnace body 1, and the trolleys 2 enter the furnace body 1 through the furnace openings 4. Furnace doors 5 and lifting mechanisms 6 for driving the furnace doors 5 to rise and fall are provided on both sides of the furnace body 1.

[0040] Multiple hoppers 7 are placed on the trolley 2, and a material rack 8 is provided on the furnace body 1 to support the hoppers 7. A drive unit 9 is provided on the material rack 8 to drive the material rack 8 to expand.

[0041] After one of the trolleys 2 drives the loaded hopper 7 into the furnace body 1, the drive unit 9 drives the material rack 8 to expand so that gaps are created between multiple hoppers 7. The drive unit 9 on the other trolley 2 drives the material rack 8 to expand, and the hopper 7 filled with material is placed on the material rack 8. After the material in the hopper 7 is processed, the material rack 8 on the trolley 2 moves outward in an expanded state and exits the furnace body 1.

[0042] Specifically, the drive unit 9 drives the material rack 8 on one of the trolleys 2 to unfold, and then the hoppers 7 filled with material are placed one by one onto the material rack 8. After the hoppers 7 are placed, the drive unit 9 drives the material rack 8 to retract, fixing all the hoppers 7 onto the material rack 8. The trolley 2 moves towards the furnace body 1 via the track 3, and one of the furnace doors 5 moves upward via the lifting mechanism 6. The trolley 2 enters the furnace body 1 through the furnace opening 4. When the trolley 2 is completely inside the furnace body 1, the furnace door 5 moves downward and seals the furnace opening 4. When the furnace body 1 processes the material in the hoppers 7, the drive unit 9 drives the material rack 8 to unfold, so that there is a gap between each hopper 7. After one trolley 2 enters the furnace body 1, the other trolley 2... The drive unit 9 drives the material rack 8 to unfold and places the material hopper 7 filled with materials on the material rack 8. After the material hopper 7 is placed, the drive unit 9 drives the material rack 8 to retract and fix the material hopper 7. After the material on one of the trolleys 2 is processed, the lifting mechanism 6 drives the furnace door 5 to move upward and the trolley 2 moves outward. At this time, the material rack 8 is in the unfolded state. The unfolded material rack 8 and the multiple hoppers 7 on the material rack 8 reduce the ventilation space at the furnace opening 4. After the trolley 2 completely exits the furnace body 1, the furnace door 5 closes and seals the furnace body 1. At the same time, the furnace door 5 on the other side of the furnace body 1 opens and the trolley 2 filled with unprocessed materials moves into the furnace body 1. The unprocessed materials on the trolley 2 are processed through the furnace body 1.

[0043] By setting an expandable material rack 8 on the trolley 2, the quantity of material to be processed on a single trolley 2 is limited, thus preventing the material on the trolley 2 from colliding with the furnace opening 4 due to overloading. At the same time, during the material processing in the furnace body 1, the material rack 8 is in an extended state. After the material processing is completed, the extended material rack 8 reduces the ventilation space at the furnace opening 4 as it passes through and exits the furnace body 1, thereby reducing heat loss within the furnace body 1. This solves the problem that the quantity of material loaded on the trolley 2 needs to be controlled, and when the quantity is insufficient, the ventilation space at the furnace opening 4 is too large during the trolley 2's detachment from the furnace opening 4, resulting in heat loss and increased energy consumption.

[0044] See Figures 2-3For the furnace door 5 mentioned above, a pair of guide rods 10 are provided on both sides of the furnace body 1. A guide groove 11 is opened on one side of the guide rod 10. The two guide rods 10 are located on both sides of the furnace opening 4. The furnace door 5 is slidably disposed between the two guide rods 10 through the guide groove 11. An inclined guide opening 12 is opened on one side of the guide rod 10. Support rods 13 are fixedly connected to both sides of the furnace door 5. The support rods 13 fit into the inclined guide opening 12 so that when the support rods 13 are located at the inclined guide opening 12, the furnace door 5 closes the furnace opening 4.

[0045] The lifting mechanism 6 includes a roller 61. A bracket 62 is fixedly connected to both sides of the top of the furnace body 1. A rotating rod 63 is rotatably connected to the bracket 62 via a bearing. Two rollers 61 are fixedly installed on the rotating rod 63. A steel wire rope 64 is wound on the roller 61. A hook 65 is fixedly connected to one end of the steel wire rope 64. The hook 65 is hung on the support rod 13. An upper drive motor 66 is fixedly connected to both sides of the top of the furnace body 1. An upper sprocket 67 is fixedly connected to the output end of the upper drive motor 66 and one end of the rotating rod 63. An upper chain 68 is meshed on the two upper sprockets 67.

[0046] Specifically, when the trolley 2 enters the furnace body 1, the upper drive motor 66 drives one of the upper sprockets 67 to rotate. Through the meshing connection between the upper chain 68 and the two upper sprockets 67, the sprocket fixedly connected to the rotating rod 63 is driven to rotate, thereby driving the rotating rod 63 to rotate, which in turn drives the winding wheel 61 to rotate, thereby winding the wire rope 64. The hook 65 drives the furnace door 5 to move upward. Through the sliding connection between the furnace door 5 and the two guide rods 10, the furnace door 5 moves upward in a straight line, thus exposing the furnace opening 4. When the trolley 2 enters the furnace body 1, the winding wheel 61 rotates in the opposite direction, causing the furnace door 5 to descend. Through the matching arrangement between the support rods 13 on both sides of the furnace door 5 and the inclined guide opening 12 on one side of the guide rod 10, when the furnace door 5 is completely closed to the furnace opening 4, the support rod 13 rests against the inclined guide opening 12.

[0047] See Figures 4-6 For the aforementioned trolley 2, the trolley 2 includes a support seat 21, a buffer plate 22 fixedly installed on one side of the support seat 21, and a mounting box 23 fixedly installed on one side of the buffer plate 22. The bottom sides of the support seat 21 are rotatably connected to axles 24 via bearings. Guide wheels 25 are fixedly connected to both ends of the axles 24. The guide wheels 25 are slidably mounted on the track 3. A lower drive motor 26 is fixedly connected inside the mounting box 23. A lower sprocket 27 is fixedly connected to the output end of the lower drive motor 26 and one of the axles 24. A lower chain 28 meshes with the two lower sprockets 27.

[0048] Specifically, the lower drive motor 26 runs, driving one of the lower sprockets 27 to rotate. Through the meshing connection between the two lower sprockets 27 and the lower chain 28, the other lower sprocket 27 is driven to rotate, thereby driving the wheel axle 24 to rotate, which in turn drives the two guide wheels 25 to rotate on the track 3, thereby driving the trolley 2 to move.

[0049] See Figures 7-8 For the aforementioned material rack 8, the material rack 8 includes a three-layer composite material plate 80. The composite material plate 80 includes a middle plate 801 and two side plates 802. A set of inserts 803 are fixedly connected to both sides of the middle plate 801. Inserts 804 are opened at both ends of one side of the side plate 802. The inserts 803 fit into the inserts 804. Rectangular slide grooves 805 are opened on both sides of the top of the bearing seat 21. Fixed plates 806 are fixedly connected to both sides of the rectangular slide groove 805. Movable plates 807 are slidably connected to both sides of the rectangular slide groove 805. Slots 808 are opened on the top of the fixed plates 806 and the movable plates 807. A locking block 809 is fixedly connected to the bottom of the connection between the middle plate 801 and the two side plates 802 that are attached to the top surface of the bearing seat 21. The locking block 809 is sleeved with the fixed plate 806 and the movable plate 807 through the slots 808.

[0050] In one of the combined material plates 80, the top and bottom of the two side plates 802 are fixedly connected to the limiting sleeves 810, and the limiting sleeves 810 are fitted with limiting rods 811. The limiting rods 811 are fixedly connected to the side plates 802 of the other two combined material plates 80.

[0051] The combined material plate 80 is provided with multiple mounting slots 812, and multiple hoppers 7 are respectively installed in the multiple mounting slots 812;

[0052] Specifically, the vertical expansion and contraction of the material rack 8 is achieved through the movable connection between the limiting rod 811 and the limiting sleeve 810 between the three-layer combined material plates 80. The horizontal expansion and contraction of the material rack 8 is achieved through the movable connection between the insert strips 803 on both sides of the middle plate 801 and the insert 804 on one side of the side plate 802. The side plates 802, which are fixedly connected to the top and bottom of the limiting sleeve 810, are located between the two side plates 802 that are fixedly connected to the limiting rod 811. The disassembly and replacement of the material rack 8 is achieved through the connection between the locking block 809 and the locking groove 808 on the top of the fixed plate 806 and the movable plate 807.

[0053] See Figures 7-8 For the aforementioned driving component 9, the driving component 9 includes a movable rod 91, with screws 92 fixedly connected to both ends of the movable rod 91. A fixed plate 806 is sleeved on the movable rod 91, and a threaded groove is provided on the movable plate 807. The movable plate 807 is threadedly connected to the screws 92 through the threaded groove, so that when the movable rod 91 drives the two screws 92 to rotate, the two movable plates 807 move towards each other. A servo motor 93 is fixedly connected inside the bearing seat 21, and the output end of the servo motor 93 is fixedly connected to one end of one of the screws 92.

[0054] The driving component 9 also includes a vertical rod 94, which is rotatably mounted on a middle plate 801 that is attached to the top surface of the bearing seat 21 via a bearing. Two collinear threaded rods 95 are fixedly connected to the top of the vertical rod 94. The two threaded rods 92 pass through the other two middle plates 801. Threaded sleeves 96 are fixedly connected to the bottom of the other two middle plates 801. The threaded sleeves 96 are threadedly connected to the two threaded rods 95. A bevel gear set 97 is fixedly connected between the bottom of the vertical rod 94 and the middle of the movable rod 91, so that when the movable rod 91 rotates, it drives the two threaded rods 95 to rotate, thereby driving the two middle plates 801 to move upward synchronously.

[0055] Specifically, the servo motor 93 operates, driving one of the screws 92 to rotate, which in turn drives the movable rod 91 and the screws 92 at both ends of the movable rod 91 to rotate. Through the threaded connection between the screws 92 and the movable plate 807, the two movable plates 807 move relative to each other, causing them to move in opposite directions. This causes the two side plates 802 to move to the sides, separating them from the middle plate 801. Simultaneously, when the movable rod 91 rotates, it drives the bevel gear set 97 to rotate, which in turn drives the vertical rod 94 to rotate, and drives the two threaded rods 95 to rotate. Through the threaded connection between the two threaded rods 95 and the threaded sleeve, the two middle plates 801 move upward, thereby causing the three combined material plates 80 to separate, thus realizing the expansion and contraction of the material rack 8.

[0056] Working principle: Feeding: Driven by the drive unit 9, the material rack 8 on one of the trolleys 2 is unfolded, and then the hoppers 7 filled with material are placed one by one on the material rack 8. After the hoppers 7 are placed, the drive unit 9 drives the material rack 8 to retract, fixing all the hoppers 7 on the material rack 8. The trolley 2 moves towards the furnace body 1 via the track 3. One of the furnace doors 5 moves upward via the lifting mechanism 6. The trolley 2 enters the furnace body 1 through the furnace opening 4. When the trolley 2 is completely inside the furnace body 1, the furnace door 5 moves downward and seals the furnace opening 4. When the furnace body 1 processes the material in the hoppers 7, the drive unit 9 drives the material rack 8 to unfold, so that there is a gap between each hopper 7.

[0057] When the trolley 2 is ready, after one of the trolleys 2 enters the furnace body 1, the drive unit 9 on the other trolley 2 drives the material rack 8 to unfold and places the material hopper 7 filled with material on the material rack 8. After the material hopper 7 is placed, the drive unit 9 drives the material rack 8 to retract and fix the material hopper 7.

[0058] After the material on one of the trolleys 2 is processed, the lifting mechanism 6 moves the furnace door 5 upward and the trolley 2 moves outward. At this time, the material rack 8 is in the unfolded state. The unfolded material rack 8 and the multiple hoppers 7 on the material rack 8 reduce the ventilation space at the furnace opening 4. After the trolley 2 completely exits the furnace body 1, the furnace door 5 closes and seals the furnace body 1. At the same time, the furnace door 5 on the other side of the furnace body 1 opens, and the trolley 2 filled with unprocessed material moves into the furnace body 1. The unprocessed material on the trolley 2 is processed through the furnace body 1.

[0059] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An energy-saving dual-carriage alternating operation annealing furnace, comprising a furnace body (1) and carriages (2) disposed on both sides of the furnace body (1), characterized in that: The furnace body (1) has rails (3) fixedly installed on both sides of the bottom. The trolley (2) is installed on the rails (3). Furnace openings (4) are provided on both sides of the furnace body (1). The trolley (2) enters the furnace body (1) through the furnace openings (4). Furnace doors (5) and lifting mechanisms (6) for driving the furnace doors (5) to rise and fall are provided on both sides of the furnace body (1). The trolley (2) is equipped with multiple hoppers (7), and the furnace body (1) is equipped with a material rack (8) that carries the hoppers (7). The material rack (8) is equipped with a driving component (9) that drives the material rack (8) to expand. After one of the trolleys (2) drives the loaded hopper (7) into the furnace body (1), the drive unit (9) drives the material rack (8) to expand so that gaps are created between the multiple hoppers (7). The drive unit (9) on the other trolley (2) drives the material rack (8) to expand, and the hopper (7) filled with material is placed on the material rack (8). After the material in the hopper (7) is processed, the material rack (8) on the trolley (2) moves outward in an expanded state and exits the furnace body (1).

2. The energy-saving double-carriage alternating operation annealing furnace according to claim 1, characterized in that: A pair of guide rods (10) are provided on both sides of the furnace body (1). A guide groove (11) is provided on one side of the guide rod (10). The two guide rods (10) are located on both sides of the furnace opening (4). The furnace door (5) is slidably disposed between the two guide rods (10) through the guide groove (11). An inclined guide opening (12) is provided on one side of the guide rod (10). A support rod (13) is fixedly connected to both sides of the furnace door (5). The support rod (13) matches the inclined guide opening (12) so that when the support rod (13) is located at the inclined guide opening (12), the furnace door (5) closes the furnace opening (4).

3. The energy-saving double-carriage alternating operation annealing furnace according to claim 2, characterized in that: The lifting mechanism (6) includes a reel (61). A bracket (62) is fixedly connected to both sides of the top of the furnace body (1). A rotating rod (63) is rotatably connected to the bracket (62) via a bearing. Two reels (61) are fixedly installed on the rotating rod (63). A wire rope (64) is wound on the reel (61). A hook (65) is fixedly connected to one end of the wire rope (64). The hook (65) is hung on the support rod (13). An upper drive motor (66) is fixedly connected to both sides of the top of the furnace body (1). An upper sprocket (67) is fixedly connected to the output end of the upper drive motor (66) and one end of the rotating rod (63). An upper chain (68) meshes on the two upper sprockets (67).

4. The energy-saving double-carriage alternating operation annealing furnace according to claim 3, characterized in that: The trolley (2) includes a support seat (21), a buffer plate (22) fixedly installed on one side of the support seat (21), and a mounting box (23) fixedly installed on one side of the buffer plate (22). The bottom sides of the support seat (21) are rotatably connected to axles (24) via bearings. Guide wheels (25) are fixedly connected to both ends of the axles (24). The guide wheels (25) are slidably mounted on the track (3). A lower drive motor (26) is fixedly connected inside the mounting box (23). A lower sprocket (27) is fixedly connected to the output end of the lower drive motor (26) and one of the axles (24). A lower chain (28) meshes on the two lower sprockets (27).

5. The energy-saving double-carriage alternating operation annealing furnace according to claim 4, characterized in that: The material rack (8) includes a three-layer composite material plate (80), the composite material plate (80) includes a middle plate (801) and two side plates (802) on both sides. A set of inserts (803) is fixedly connected to both sides of the middle plate (801). An insertion slot (804) is opened at both ends of one side of the side plate (802). The inserts (803) fit into the insertion slots (804). A rectangular sliding groove (805) is opened on both sides of the top of the bearing seat (21). Both sides of the rectangular sliding groove (805) are provided with... A fixed plate (806) is fixedly connected. Movable plates (807) are slidably connected to both sides of the rectangular slide groove (805). The top of the fixed plate (806) and the movable plate (807) are both provided with slots (808). At the bottom of the connection between the middle plate (801) and the two side plates (802) that are attached to the top surface of the bearing seat (21), a locking block (809) is fixedly connected. The locking block (809) is sleeved with the fixed plate (806) and the movable plate (807) through the slot (808).

6. The energy-saving double-carriage alternating operation annealing furnace according to claim 5, characterized in that: The driving component (9) includes a movable rod (91), both ends of which are fixedly connected to screws (92). A fixed plate (806) is sleeved on the movable rod (91). A threaded groove is provided on the movable plate (807). The movable plate (807) is threadedly connected to the screws (92) through the threaded groove, so that when the movable rod (91) drives the two screws (92) to rotate, the two movable plates (807) move towards each other. A servo motor (93) is fixedly connected inside the bearing seat (21). The output end of the servo motor (93) is fixedly connected to one end of one of the screws (92).

7. The energy-saving double-carriage alternating operation annealing furnace according to claim 6, characterized in that: The driving component (9) also includes a vertical rod (94), which is rotatably mounted on a middle plate (801) that fits against the top surface of the support seat (21) via a bearing. The top of the vertical rod (94) is fixedly connected to two collinear threaded rods (95), and the two threaded rods (92) pass through the other two middle plates (801). The bottom of the other two middle plates (801) is fixedly connected to threaded sleeves (96), and the threaded sleeves (96) are threadedly connected to the two threaded rods (95). A bevel gear set (97) is fixedly connected between the bottom of the vertical rod (94) and the middle of the movable rod (91) so that when the movable rod (91) rotates, it drives the two threaded rods (95) to rotate, thereby driving the two middle plates (801) to move upward synchronously.

8. The energy-saving double-carriage alternating operation annealing furnace according to claim 7, characterized in that: One of the combined material plates (80) has two side plates (802) with fixed top and bottom connections of limiting sleeves (810), and a limiting rod (811) is fitted inside the limiting sleeve (810). The limiting rod (811) is fixedly connected to the side plates (802) of the other two combined material plates (80).

9. An energy-saving double-carriage alternating operation annealing furnace according to claim 8, characterized in that: The combined material plate (80) has multiple mounting slots (812), and the multiple hoppers (7) are respectively installed in the multiple mounting slots (812).

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