A tunnel-type integrated resistance furnace that facilitates the replacement of heating elements

Abstract

This invention relates to a tunnel-type integrated resistance furnace that facilitates the replacement of heating elements. By incorporating a drive motor and a drive screw, it controls a disassembly assembly to automatically remove damaged heating elements, effectively avoiding manual replacement by workers. This reduces workload and prevents burns during the replacement process. Furthermore, the disassembly assembly, equipped with a clamping unit, allows for heating element replacement without shutting down the furnace, thanks to the cooperation of wiring terminals and a limiting unit. This reduces the need for tools to remove wiring terminals during disassembly, increasing efficiency.

Description

Technical Field

[0001] This invention relates to the field of resistance furnace technology, specifically a tunnel-type integrated resistance furnace that facilitates the replacement of heating elements. Background Technology

[0002] A tunnel-type continuous resistance furnace is a device that uses the principle of resistance heating to convert electrical energy into heat energy. It is commonly used for heating and heat treatment of metallic materials. It is widely applied in production and experimentation in fields such as ceramics, metallurgy, electronics, glass, chemicals, machinery, refractory materials, new material development, special materials, and building materials. Applications include sintering of metallic and ceramic materials, heat treatment of certain single crystals, and detection and research of high-temperature reheating shrinkage of refractory materials.

[0003] The tunnel-type integrated resistance furnace is mainly composed of furnace body, furnace shell, furnace cavity, furnace door and electric heating elements. The electric heating elements are mainly silicon carbide rods, which are installed sequentially on both sides of the furnace cavity. The conductive end of the silicon carbide rod extends to the cold end area, and multiple silicon carbide rods are electrically connected by wires. After being energized, the silicon carbide rods can heat up rapidly, which has the advantages of fast heating speed and uniform temperature field.

[0004] However, silicon carbide rods are very fragile and easily break under slight impact, requiring replacement once broken. Current technology typically involves manual replacement, which requires removing the terminals from the silicon carbide rod, disconnecting the wires, and finally removing the rod. This process is complex and poses significant safety hazards, such as burns and electric shocks. Furthermore, because the top cover of a tunnel-type integrated resistance furnace is usually a single-door structure with a long furnace body, workers must walk around to the other side of the furnace to replace a silicon carbide rod that is far from the top door opening, reducing replacement efficiency.

[0005] Therefore, a tunnel-type integrated resistance furnace that facilitates the replacement of heating elements is proposed to solve the above problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a tunnel-type integrated resistance furnace that facilitates the replacement of heating elements. It has advantages such as easy disassembly, high disassembly efficiency, and high safety, solving the problems of cumbersome disassembly process and low replacement efficiency of workers in existing technologies.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a tunnel-type integrated resistance furnace that facilitates the replacement of heating elements, comprising a furnace body, wherein the furnace body is provided with a furnace cavity and a cold end area, a protective cover is provided on the top of the cold end area, and multiple heating rods are symmetrically arranged in the cold end area, each of the multiple heating rods is provided with a terminal block for fixing, and a power supply wire for conducting electricity is connected between the multiple terminals.

[0008] The cold end area is also provided with a first guide rail, and a dismantling component for disassembling the heating rod is slidably connected to the first guide rail. A transmission motor for transmission is also provided in the first guide rail, and a transmission screw is connected to the output end of the transmission motor. The transmission screw is connected to the dismantling component.

[0009] Furthermore, the dismantling assembly includes a flipping unit for transmission, a lifting unit for extending the displacement distance, and an extension unit for disassembling the heating rod.

[0010] Furthermore, the flipping unit includes a first mounting plate for installation, and the bottom of the first mounting plate is provided with a slider adapted to the first guide rail and a threaded platform threadedly connected to the transmission screw.

[0011] The top of the first mounting plate is fixedly connected to two sets of support platforms for support. The support platforms are provided with U-shaped grooves for connection. The top of the first mounting plate is also provided with a fixed seat for transmission. The fixed seat is provided with a first electric push rod. The push rod end of the first electric push rod is fixedly connected to a transmission block. The transmission block is provided with a transmission column for connection. Both ends of the transmission column are fixedly connected to a first transmission platform. Both first transmission platforms are provided with transmission racks for transmission.

[0012] Furthermore, the lifting unit includes a second mounting plate for installation. Both ends of the second mounting plate are provided with connecting shafts that are adapted to the U-shaped grooves on the support platform. One end of the connecting shaft is provided with a linkage gear for linkage. The second mounting plate is also provided with a second guide rail for guiding the extension unit, a second electric push rod for transmitting power to the extension unit, and a limiting platform for limiting position.

[0013] Furthermore, the extension unit includes a third mounting plate for installation and a third guide rail for guidance. The extension plate is slidably connected to the third guide rail, and clamping units for clamping the heating rod are provided at both ends of the extension plate.

[0014] The third mounting plate is also provided with two tensioning rollers, and a linkage belt is tensioned between the two tensioning rollers. One side of the linkage belt is fixedly connected to the limiting platform, and the other side is fixedly connected to a connecting platform, which is fixedly connected to the extension plate.

[0015] Furthermore, the clamping unit includes a clamping seat, which is fixedly connected to the third mounting plate. A third electric push rod for transmission is provided on the clamping seat. A second transmission platform is fixedly connected to the push rod end of the third electric push rod. Two sets of first linkage arms are rotatably connected to the second transmission platform. The other ends of the two sets of first linkage arms are rotatably connected to clamping arms.

[0016] The clamping arm is equipped with a gripper for clamping the conductive end of the heating rod. One gripper is equipped with a linkage post for adjusting the wiring terminal. The clamping arm is also equipped with a guide groove for guiding. The third electric push rod is equipped with a guide post that is slidably connected in the guide groove.

[0017] Furthermore, the terminal block includes a connection port for connecting a power supply wire and a support base for support. The top of the support base is provided with a mounting frame for installation. Two adjusting seats are slidably connected in the mounting frame. Each of the two adjusting seats is provided with a linkage rack. An adjusting gear is also provided in the mounting frame. The two linkage racks are located above and below the adjusting gear, respectively, and are both engaged with the adjusting gear.

[0018] The adjusting seat is also provided with clamping plates for fixing the heating rod, and the other end of the two clamping plates is connected to a connecting wire for conducting electricity.

[0019] Furthermore, a mounting groove is provided on one of the linkage racks located above the adjusting gear, and a limiting unit for limiting is provided in the mounting groove.

[0020] Furthermore, the limiting unit includes a first linkage rod, which is rotatably connected to the mounting groove. A reset spring for resetting is fixedly connected to the bottom of the first linkage rod. A second linkage arm is rotatably connected to one side of the first linkage rod, and a second linkage rod is rotatably connected to the other end of the second linkage arm. The second linkage rod is rotatably connected to the mounting groove, and a limiting boss for limiting the linkage rack is provided at the bottom of the second linkage rod.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] 1. This tunnel-type integrated resistance furnace, which facilitates the replacement of heating elements, is equipped with a drive motor and a drive screw to control the disassembly components and achieve automatic removal of damaged heating elements. This effectively avoids the need for manual replacement by staff, reduces the workload of staff, and prevents burns during the replacement process.

[0023] 2. This tunnel-type integrated resistance furnace, which facilitates the replacement of heating elements, is equipped with a disassembly assembly that allows for easy removal of the heating rods during use, while also facilitating placement within the furnace body and cold end area.

[0024] 3. This tunnel-type integrated resistance furnace, which facilitates the replacement of heating elements, is equipped with a flipping unit, a lifting unit, and an extension unit. During use, it can effectively remove the heating rods installed on both sides of the furnace cavity, ensuring its flexibility in use.

[0025] 4. This tunnel-type integrated resistance furnace, which facilitates the replacement of heating elements, is equipped with wiring terminals and a limiting unit. During use, it can effectively fix the heating rod and ensure conductivity. It allows for heating rod replacement without stopping the machine and also has good adjustability, enabling automatic opening and tightening, thus avoiding the need for manual adjustment by the operator.

[0026] 5. This tunnel-type integrated resistance furnace, which facilitates the replacement of heating elements, is equipped with a clamping unit that effectively clamps the heating rod during use. It also achieves linkage with the wiring terminals, ensuring automatic fixing during disassembly and installation, effectively reducing the steps required to replace the heating rod. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the cold end region structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0030] Figure 4 For the present invention Figure 2 Enlarged view of the structure at point A;

[0031] Figure 5 For the present invention Figure 2 Enlarged view of the structure at point B;

[0032] Figure 6 This is a schematic diagram of the disassembly component structure of the present invention;

[0033] Figure 7 This is a schematic diagram of the lifting and extending unit structure of the present invention;

[0034] Figure 8 This is a schematic diagram of the clamping unit structure of the present invention;

[0035] Figure 9 This is a schematic diagram of the linkage structure between the clamping unit and the wiring terminal of the present invention;

[0036] Figure 10 This is a schematic diagram of the linkage structure between the clamping unit and the limiting unit of the present invention;

[0037] Figure 11 This is a schematic diagram of the terminal block structure of the present invention;

[0038] Figure 12 This is a schematic diagram of the limiting unit structure of the present invention.

[0039] In the diagram: 1. Furnace body; 101. Furnace cavity; 102. Cover plate; 103. Cold end zone; 104. First guide rail; 105. Heating rod; 106. Power supply wire; 107. Drive motor; 108. Drive screw; 2. Removal assembly; 21. Tilting unit; 211. First mounting plate; 212. Support platform; 213. Fixing base; 214. First electric push rod; 215. Transmission block; 216. Transmission column; 217. First transmission platform; 218. Transmission rack; 22. Lifting unit; 221. Second mounting plate; 222. Connecting shaft; 223. Linkage gear; 224. Second guide rail; 225. Second electric push rod; 226. Limiting platform; 23. Extension unit; 231. Third mounting plate; 232. Third guide rail; 233. Tensioning wheel; 234. Linkage belt; 235. Connecting platform; 236. Extension plate; 3. Wiring terminal; 301. Wiring port; 302. Support base; 303. Mounting frame; 304. Adjusting base; 305. Linkage rack; 306. Adjusting gear; 307. Clamping piece; 308. Connecting wire; 4. Clamping unit; 41. Clamping base; 42. Third electric push rod; 43. Second transmission platform; 44. First linkage arm; 45. Clamping arm; 46. Guide groove; 47. Guide post; 48. Gripper; 49. Linkage post; 5. Limiting unit; 51. First linkage rod; 52. Return spring; 53. Second linkage arm; 54. Second linkage rod; 55. Limiting boss. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Please see Figure 1-3This embodiment of a tunnel-type integrated resistance furnace for easy replacement of heating elements includes a furnace body 1, a furnace cavity 101 and a cold end zone 103. A protective cover plate 102 is provided on the top of the cold end zone 103. Multiple heating rods 105 are symmetrically arranged in the cold end zone 103. Each heating rod 105 is provided with a terminal block 3 for fixing. Power supply wires 106 for conducting electricity are connected between the multiple terminal blocks 3. A first guide rail 104 is also provided in the cold end zone 103. A disassembly assembly 2 for disassembling the heating rods 105 is slidably connected to the first guide rail 104. A transmission motor 107 for transmission is also provided in the first guide rail 104. A transmission screw 108 is connected to the output end of the transmission motor 107. The transmission screw 108 is connected to the disassembly assembly 2.

[0042] As a preferred technical solution in this embodiment: In actual use, when the heating element in the resistance furnace is damaged and needs to be replaced, the staff can first determine the location of the damaged heating element, and then control the transmission motor 107 to drive the transmission screw 108 to rotate. During the rotation of the transmission screw 108, the entire 2 can be displaced, so that 2 can be moved to the location of the damaged heating element. Then, 2 can be controlled to remove the damaged heating element.

[0043] The technical effects of the above embodiments are that by setting up a drive motor 107 and a drive screw 108, the damaged heating element can be automatically removed, which effectively avoids the need for manual replacement by staff, reduces the workload of staff, and prevents staff from getting burned during the replacement process.

[0044] It is worth noting that in actual use, the staff can control the rotation angle of the drive motor 107 by setting the PLC controller, thereby achieving the effect of precise adjustment of the displacement of 2, ensuring that the heating rod 105 to be disassembled is located at the transverse central axis of 2.

[0045] Please see Figure 4-7 In this embodiment, the dismantling assembly 2 includes a flipping unit 21 for transmission, a lifting unit 22 for extending the displacement distance, and an extension unit 23 for dismantling the heating rod 105.

[0046] As a preferred technical solution in this embodiment: by setting a flipping unit 21, it can drive the lifting unit 22 to produce a flipping effect, thereby ensuring that the lifting unit 22 can drive the extension unit 23 to achieve the effect of disassembling the heating elements set on both sides of the furnace cavity 102.

[0047] The technical effects of the above embodiments are: they can effectively avoid the need for workers to go around to the other side to replace the heating element when it is necessary to replace the heating element on different sides, thus effectively increasing the replacement efficiency of the heating rod.

[0048] The flipping unit 21 in this embodiment includes a first mounting plate 211 for installation. The bottom of the first mounting plate 211 is provided with a slider adapted to the first guide rail 104 and a threaded platform threadedly connected to the transmission screw 108. The top of the first mounting plate 211 is fixedly connected with two sets of support platforms 212 for support. The support platforms 212 are provided with U-shaped grooves for connection. The top of the first mounting plate 211 is also provided with a fixed seat 213 for transmission. The fixed seat 213 is provided with a first electric push rod 214. The push rod end of the first electric push rod 214 is fixedly connected with a transmission block 215. The transmission block 215 is provided with a transmission column 216 for connection. Both ends of the transmission column 216 are fixedly connected with a first transmission platform 217. Both first transmission platforms 217 are provided with transmission racks 218 for transmission.

[0049] As a preferred technical solution in this embodiment: during the replacement of the heating element, the operator can control the extension or retraction of the first electric push rod 214 according to the side of the heating element to be replaced. When the push rod of the first electric push rod 214 is displaced, it can drive the transmission block 215 to produce a displacement effect, so that the transmission block 215 can drive the first transmission table 217 to produce a displacement effect. During the displacement of the first transmission table 217, it can drive the transmission rack 218 to produce a displacement effect, so that the transmission rack 218 can achieve the effect of transmission to the lifting unit 22, so that the lifting unit 22 can achieve the effect of flipping, so that the lifting unit 22 can be perpendicular to the first mounting plate 211, thereby changing the horizontal lifting of the lifting unit 22 to the vertical lifting effect, and achieving the effect of removing the heating element during the vertical lifting process.

[0050] It is worth noting that the operator can set a limiting component on the transmission rack 218. That is, when the lifting unit 22 is exactly perpendicular to the first mounting plate 211, the limiting component can just achieve the limiting effect on the transmission rack 218.

[0051] The lifting unit 22 in this embodiment includes a second mounting plate 221 for installation. Both ends of the second mounting plate 221 are provided with connecting shafts 222 that are adapted to the U-shaped grooves on the support platform 212. One end of the connecting shaft 222 is provided with a linkage gear 223 for linkage. The second mounting plate 221 is also provided with a second guide rail 224 for guiding the extension unit 23, a second electric push rod 225 for transmitting power to the extension unit 23, and a limiting platform 226 for limiting.

[0052] As a preferred technical solution in this embodiment: when the first transmission table 217 drives the transmission rack 218 to move to the linkage gear 223, the transmission rack 218 will drive the linkage gear 223 to rotate. During the rotation of the linkage gear 223, the second mounting plate 221 can rotate around the support table 212, thereby achieving the effect of flipping the second mounting plate 221. When the second mounting plate 221 is perpendicular to the first mounting plate 211, the operator can control the second electric push rod 225 to drive the extension unit 23 to move upward or downward, thereby realizing the installation or removal of the heating rod 105.

[0053] In this embodiment, the extension unit 23 includes a third mounting plate 231 for installation and a third guide rail 232 for guidance. An extension plate 236 is slidably connected to the third guide rail 232. Both ends of the extension plate 236 are provided with clamping units 4 for clamping the heating rod 105. The third mounting plate 231 is also provided with two tensioning wheels 233. A linkage belt 234 is tensioned between the two tensioning wheels 233. One side of the linkage belt 234 is fixedly connected to the limiting platform 226, and the other side is fixedly connected to the connecting platform 235. The connecting platform 235 is fixedly connected to the extension plate 236.

[0054] As a preferred technical solution in this embodiment: In actual use, when the operator controls the second electric push rod 225 to move the third mounting plate 231, the third mounting plate 231 can move the tension wheel 233 and the extension plate 236 to the same displacement. At this time, because the limiting platform 226 fixes one side of the linkage belt 234, the linkage belt 234 will rotate around the two tension wheels 233, thereby driving the connecting platform 235 to move further. During the further displacement of the connecting platform 235, the extension plate 236 can move further, so that the clamping units 4 provided at both ends of the extension plate 236 can move. When the clamping unit 4 moves to the heating rod 105 to be replaced, the operator can control the clamping unit 4 to clamp and fix the heating rod 105, and then control the second electric push rod 225 again to move the 336 and the clamping unit 4 to move in opposite directions to remove the heating rod 105.

[0055] The clamping unit 4 in this embodiment includes a clamping seat 41, which is fixedly connected to the third mounting plate 231. A third electric push rod 42 for transmission is provided on the clamping seat 41. A second transmission platform 43 is fixedly connected to the push rod end of the third electric push rod 42. Two sets of first linkage arms 44 are rotatably connected to the second transmission platform 43. The other end of each set of first linkage arms 44 is rotatably connected to a clamping arm 45.

[0056] The clamping arm 45 is provided with a gripper 48 for gripping the conductive end of the heating rod 105. A linkage post 49 for adjusting the terminal block 3 is provided on the gripper 48. The clamping arm 45 is also provided with a guide groove 46 for guiding. A guide post 47 is provided on the third electric push rod 42 and is slidably connected in the guide groove 46.

[0057] As a preferred technical solution in this embodiment: In actual use, when the operator controls the extension plate 236 to move the clamping unit 4 to the heating rod 105, the two clamps 48 are just positioned on both sides of the heating rod 105 to be replaced. Then, the operator can control the third electric push rod 42 to drive the second transmission table 43 to move upward. During the upward movement of the second transmission table 43, the clamping arm 45 and the clamps 48 can be moved relative to each other, so that the two clamps 48 can clamp the heating rod 105. At the same time, when the two clamps 48 approach each other, one clamp 48 can drive the linkage column 49 to remove the limiting effect of the terminal 3 on the heating rod 105. Then, the operator can control the extension plate 236 to move upward, thereby driving the clamps 48 to move upward and disassemble the heating rod 105.

[0058] It is worth noting that when the heating rod 105 is located at the transverse central axis of the first mounting plate 211 and the second mounting plate 221 is perpendicular to the first mounting plate 211, the clamping unit 4 is located directly above the heating rod 105.

[0059] In this embodiment, the terminal block 3 includes a wiring port 301 for connecting the power supply wire 106 and a support base 302 for support. The top of the support base 302 is provided with a mounting frame 303 for installation. Two adjusting seats 304 are slidably connected in the mounting frame 303. Each of the two adjusting seats 304 is provided with a linkage rack 305. An adjusting gear 306 is also provided in the mounting frame 303. The two linkage racks 305 are located above and below the adjusting gear 306, respectively, and are both engaged with the adjusting gear 306.

[0060] The adjusting seat 304 is also provided with clamping pieces 307 for fixing the heating rod 105, and the other end of the two clamping pieces 307 is connected to a connecting wire 308 for conducting electricity.

[0061] As a preferred technical solution in this embodiment: During the installation of the heating rod 105, the operator first inserts the heating rod 105 into the corresponding mounting hole, so that the heating end is located inside 102 and the conductive end is located between the two clamping plates 307. Then, the operator can control the two adjusting seats 304 to generate a relative displacement effect, so that the two clamping plates 307 can be driven to fix the heating rod 105. Finally, by inserting a wire into the wiring port 301, the heating rod 105 is powered on. At this time, the installation of the heating rod 105 is completed. Compared with the traditional method of fixing the wire with wire clamps or bolts, this method has the effect of eliminating the need for repeated installation, effectively ensuring that the installation or replacement of the heating rod 105 is more convenient, increasing its replacement efficiency, and avoiding the occurrence of contact points or burns during the replacement process.

[0062] In this embodiment, a mounting groove is provided on a linkage rack 305 located above the adjusting gear 306, and a limiting unit 5 for limiting is provided in the mounting groove.

[0063] As a preferred technical solution in this embodiment: when the operator controls the gripper 48 to move downward, the linkage post 49 on the gripper 48 will move to the limiting unit 5, and the gripper 48 will contact the top of the connecting wire 308. Then, when the two grippers 48 are controlled to move closer to each other, the linkage post 49 can move the limiting unit 5 to cancel the limiting effect on the linkage rack 305, thereby ensuring that when the linkage post 49 moves, it can drive the limiting unit 5 to make the linkage rack 305 move. When one linkage rack 305 moves, it can drive the linkage gear 306 meshing with it to rotate, so that the linkage gear 306 can drive the other adjusting seat 304 to make a relative or opposite displacement effect.

[0064] The limiting unit 5 in this embodiment includes a first linkage rod 51, which is rotatably connected to the mounting groove. A reset spring 52 for resetting is fixedly connected to the bottom of the first linkage rod 51. A second linkage arm 53 is rotatably connected to one side of the first linkage rod 51. A second linkage rod 54 is rotatably connected to the other end of the second linkage arm 53. The second linkage rod 54 is rotatably connected to the mounting groove. A limiting boss 55 for limiting the linkage rack 305 is provided at the bottom of the second linkage rod 54.

[0065] As a preferred technical solution in this embodiment: In actual use, when the heating rod 105 needs to be removed, the operator controls the gripper 48 to clamp the heating rod 105. At this time, the linkage post 49 on the gripper 48 is located between the first linkage rod 51 and the second linkage rod 54. When the two grippers 48 move relative to each other, the heating rod 105 is clamped. The linkage post 49 on the gripper 48 will drive the first linkage rod 51 to rotate counterclockwise. At this time, one side of the first linkage rod 51 will drive the return spring 52 to be stretched, and the other side will drive the second linkage arm 53 to move, so that the other end of the second linkage arm 53 can drive the second linkage rod 54 to rotate clockwise. During the clockwise rotation of the second linkage rod 54, the limiting boss 55 can be driven to disengage from the linkage rack 305, thereby canceling the limiting effect on the adjusting seat 304. As the gripper 48 and the linkage post 49 continue to move, The linkage column 49 can drive the first linkage rod 51 and the linkage rack 305 located above the linkage gear 306 to produce displacement. During the displacement of the linkage rack 305, it can drive the linkage gear 306 to cause the other linkage rack 305 to produce a reverse displacement, thereby causing the two clamping pieces 307 to release the clamping effect on the heating rod 105. At this time, the operator controls the second electric push rod 225 to drive the extension plate 236 to produce an upward displacement, thereby causing the gripper 48 to produce an upward displacement, realizing the removal of the heating rod 105. At this time, the linkage column 49 disengages from the first linkage rod 51, and the first linkage rod 51 is reset under the action of the return spring 52. During the reset process, it can drive the second linkage arm 53 to reset the second linkage rod 54. The limiting boss 55 provided on the second linkage rod 54 engages again with the tooth groove on the linkage rack 305 to achieve the limiting effect on the two linkage racks 305, thereby keeping the two clamping pieces 307 open, which is convenient for subsequent installation.

[0066] Similarly, when installing the heating rod 105, the operator first lays the 2 flat, then fixes the heating rod 105 to be installed using the clamping unit 4, and controls the flipping unit 21 to drive the lifting unit 22 and the extension unit 23 to be perpendicular to it. Finally, the operator controls the second electric push rod 225 to drive the extension plate 236 to produce a downward displacement effect. During the downward displacement of the extension plate 236, the heating rod 105 can be accurately inserted into the mounting hole. After installation, the bottom of the clamp 48 contacts the mounting frame 303, and the linkage column 49 is located between the first linkage rod 51 and the second linkage rod 54. At this time, the operator can control the... When the two grippers 48 open and release the fixing of the heating rod 105, the linkage post 49 on the grippers 48 will drive the second linkage rod 54 to rotate clockwise, thereby causing the limiting boss 55 to release the limiting effect on the linkage rack 305. Subsequently, as the linkage post 49 continues to move, it can drive the second linkage rod 54 to move continuously, so that the second linkage rod 54 can drive the linkage rack 305 located above the linkage gear 306 to move, thereby driving the linkage gear 306 to cause the linkage rack 305 at the bottom to move relative to it, thereby achieving the clamping of the conductive end of the heating rod 105, thus completing the replacement of the heating rod 105.

[0067] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0068] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tunnel-type integrated resistance furnace for easy replacement of heating elements, comprising a furnace body (1), wherein the furnace body (1) is provided with a furnace cavity (101) and a cold end zone (103), and a protective cover plate (102) is provided on the top of the cold end zone (103), characterized in that: Multiple heating rods (105) are symmetrically arranged in the cold end area (103). Each heating rod (105) is provided with a terminal block (3) for fixing. Each terminal block (3) is connected to a power supply wire (106) for conducting electricity. The cold end area (103) is also provided with a first guide rail (104), and the first guide rail (104) is slidably connected with a dismantling component (2) for disassembling the heating rod (105). The first guide rail (104) is also provided with a transmission motor (107) for transmission. The output end of the transmission motor (107) is connected to a transmission screw (108), and the transmission screw (108) is connected to the dismantling component (2). The dismantling assembly (2) includes a flipping unit (21) for transmission, a lifting unit (22) for extending the displacement distance, and an extension unit (23) for dismantling the heating rod (105). The flipping unit (21) includes a first mounting plate (211) for installation. The bottom of the first mounting plate (211) is provided with a slider adapted to the first guide rail (104) and a threaded platform threadedly connected to the transmission screw (108). The top of the first mounting plate (211) is fixedly connected to two sets of support platforms (212) for support. The support platforms (212) are provided with U-shaped grooves for connection. The top of the first mounting plate (211) is also provided with a fixed seat (213) for transmission. The fixed seat (213) is provided with a first electric push rod (214). The push rod end of the first electric push rod (214) is fixedly connected to a transmission block (215). The transmission block (215) is provided with a transmission column (216) for connection. Both ends of the transmission column (216) are fixedly connected to a first transmission platform (217). Both first transmission platforms (217) are provided with transmission racks (218) for transmission. The lifting unit (22) includes a second mounting plate (221) for installation. Both ends of the second mounting plate (221) are provided with connecting shafts (222) that are adapted to the U-shaped grooves on the support platform (212). One end of the connecting shaft (222) is provided with a linkage gear (223) for linkage. The second mounting plate (221) is also provided with a second guide rail (224) for guiding the extension unit (23), a second electric push rod (225) for driving the extension unit (23), and a limiting platform (226) for limiting.

2. The tunnel-type integrated resistance furnace as described in claim 1, characterized in that: The extension unit (23) includes a third mounting plate (231) for installation and a third guide rail (232) for guidance. An extension plate (236) is slidably connected on the third guide rail (232). Both ends of the extension plate (236) are provided with clamping units (4) for clamping the heating rod (105). The third mounting plate (231) is also provided with two tensioning rollers (233), and a linkage belt (234) is tensioned between the two tensioning rollers (233). One side of the linkage belt (234) is fixedly connected to the limiting platform (226), and the other side of the linkage belt (234) is fixedly connected to a connecting platform (235), which is fixedly connected to the extension plate (236).

3. The tunnel-type integrated resistance furnace as described in claim 2, characterized in that: The clamping unit (4) includes a clamping seat (41), which is fixedly connected to the third mounting plate (231). The clamping seat (41) is provided with a third electric push rod (42) for transmission. The push rod end of the third electric push rod (42) is fixedly connected to a second transmission platform (43). Two sets of first linkage arms (44) are rotatably connected to the second transmission platform (43). The other end of each set of first linkage arms (44) is rotatably connected to a clamping arm (45). The clamping arm (45) is provided with a gripper (48) for clamping the conductive end of the heating rod (105). A linkage column (49) for adjusting the terminal (3) is provided on one gripper (48). A guide groove (46) for guiding is also provided on the clamping arm (45). A guide column (47) slidably connected in the guide groove (46) is provided on the third electric push rod (42).

4. The tunnel-type integrated resistance furnace as described in claim 1, characterized in that: The terminal block (3) includes a connection port (301) for connecting the power supply wire (106) and a support base (302) for support. The top of the support base (302) is provided with a mounting frame (303) for installation. Two adjusting seats (304) are slidably connected in the mounting frame (303). Both adjusting seats (304) are provided with a linkage rack (305). The mounting frame (303) is also provided with an adjusting gear (306). The two linkage racks (305) are located above and below the adjusting gear (306) respectively, and both are engaged with the adjusting gear (306). The adjustment seat (304) is also provided with clamping pieces (307) for fixing the heating rod (105), and the other end of the two clamping pieces (307) is connected to a connecting wire (308) for conducting electricity.

5. A tunnel-type integrated resistance furnace for easy replacement of heating elements as described in claim 4, characterized in that: An installation groove is provided on a linkage rack (305) located above the adjusting gear (306), and a limiting unit (5) for limiting is provided in the installation groove.

6. A tunnel-type integrated resistance furnace for easy replacement of heating elements as described in claim 5, characterized in that: The limiting unit (5) includes a first linkage rod (51), which is rotatably connected to the mounting groove. A reset spring (52) for resetting is fixedly connected to the bottom of the first linkage rod (51). A second linkage arm (53) is rotatably connected to one side of the first linkage rod (51). A second linkage rod (54) is rotatably connected to the other end of the second linkage arm (53). The second linkage rod (54) is rotatably connected to the mounting groove. A limiting boss (55) for limiting the linkage rack (305) is provided at the bottom of the second linkage rod (54).

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