Preheating furnace for continuous extrusion in copper processing

Abstract

The invention discloses a preheating furnace for continuous extrusion in copper processing, and relates to the technical field of preheating furnaces, the preheating furnace comprises a control cabinet and a protective shell, the upper end of the control cabinet is provided with a moving device, and one side of the moving device is provided with a rotary opening and closing mechanism for changing the opening diameter according to copper rods of different sizes; a plurality of moving lifting mechanisms used for rotationally pushing the copper bars to be preheated are arranged on one side of the rotary opening and closing mechanism, and a plurality of overturning switching mechanisms used for switching preheating equipment according to different diameters of the copper bars are arranged on one side of the moving lifting mechanisms. The problems that when a traditional preheating furnace treats copper rods of different sizes, preheating is uneven, the equipment adaptability is poor, and local overheating or incomplete heating is caused by uneven rotation of the copper rods are solved.

Description

Technical Field

[0001] The present application relates to boilers and auxiliary equipment, specifically to the field of preheating furnace technology, and in particular to a preheating furnace for continuous extrusion in copper processing. Background Art

[0002] In the continuous extrusion process of copper processing, the preheating step has a significant impact on the processing quality of copper rods and the subsequent forming effect. However, when processing copper rods of different sizes, traditional preheating furnaces often face problems such as uneven preheating and poor equipment adaptability. Auxiliary equipment used with boilers is usually installed to solve these problems. Specifically, fixed-size preheating furnaces are difficult to adapt to the preheating needs of copper rods of various diameters, resulting in overheating of small-diameter copper rods or insufficient preheating of large-diameter copper rods, affecting the product qualification rate. In addition, the copper rods in traditional preheating furnaces rotate unevenly during the preheating process, which can easily cause local overheating or incomplete heating, further affecting the copper rod's microstructure and processing performance. Summary of the Invention

[0003] In order to improve the problems of uneven preheating, poor equipment adaptability and uneven rotation of copper rods leading to local overheating or incomplete heating in traditional preheating furnaces when processing copper rods of different sizes, the present application provides a preheating furnace for continuous extrusion of copper processing.

[0004] The present application provides a preheating furnace for continuous extrusion of copper processing, which adopts the following technical solutions: A preheating furnace for continuous extrusion of copper processing comprises a control cabinet and a protective shell. A movable device is provided at the upper end of the control cabinet. A rotating opening and closing mechanism is provided on one side of the movable device for changing the opening diameter according to copper rods of different sizes. A plurality of movable lifting mechanisms are provided on one side of the rotating opening and closing mechanism for rotating and pushing the copper rods for preheating. A plurality of flip switching mechanisms are provided on one side of the movable lifting mechanism for switching the preheating equipment according to the different diameters of the copper rods.

[0005] By adopting the above technical solution, the rotation and preheating of the copper rod are achieved through the mobile lifting mechanism, and the flip switching mechanism is used to automatically select the appropriate preheating equipment according to the diameter of the copper rod, thereby effectively solving the problems of uneven preheating and poor equipment adaptability of the traditional preheating furnace.

[0006] Preferably, the rotating opening and closing mechanism includes a servo motor fixed on one side of the mobile device, a plurality of pulleys are provided on one side of the output end of the servo motor, steel ropes are provided in the grooves on the outer annular surfaces of several of the pulleys, the steel ropes are inserted into one end of several annularly arranged telescopic rods, one end of several of the telescopic rods movably passes through a fixed ring fixed to the mobile device, the inner annular surface of the fixed ring is provided with a plurality of arc-shaped abutting blocks fixed to the telescopic rods, and rubber rings are fixed to the side of several of the arc-shaped abutting blocks away from the telescopic rods.

[0007] By adopting the above technical solution, the rotary opening and closing mechanism uses a servo motor to drive the pulley and wire rope to achieve synchronous extension and retraction of the telescopic rod, and then adjust the opening diameter formed by the arc-shaped abutment block and the rubber ring to adapt to copper rods of different sizes.

[0008] Preferably, one end of each of the two horizontal telescopic rods is fixedly penetrated by an F-shaped fixing rod.

[0009] By adopting the above technical solution, the provision of the F-shaped fixing rod enhances the stability of the telescopic rod during movement, and prevents it from deflecting or shaking during the telescopic process.

[0010] Preferably, the mobile lifting mechanism includes a base plate fixedly arranged on one side of the fixed ring, a rack is slidably arranged on one side of the base plate, a spur gear is meshed with one side of the rack, a bevel gear group is fixed on one side of the spur gear, a transmission group is provided on one side of the bevel gear group, a transmission shaft is provided on one side of the transmission group, support platforms are provided at both ends of the transmission shaft, a fixed plate is slidably arranged inside the support platform, and a transmission roller for driving the copper rod to rotate is provided on one side of the fixed plate.

[0011] By adopting the above technical solution, the mobile lifting mechanism utilizes the coordination of the rack, spur gear, bevel gear group and transmission group to realize the movement and lifting of the transmission shaft and the support platform, thereby driving the transmission roller to rotate and push the copper rod for preheating, and at the same time adjusting the position of the support platform according to the diameter of the copper rod.

[0012] Preferably, side plates are fixedly provided on both sides of the upper end of the bottom plate, a spring telescopic rod is provided in the middle of the inner cavity of one side of the side plate, and an arc-shaped clamping block abutting against one of the transmission groups is fixedly provided on one side of the spring telescopic rod.

[0013] By adopting the above technical solution, the setting of the spring telescopic rod and the arc-shaped clamping block enhances the stability of the transmission group during operation, prevents it from loosening or slipping during transmission, and thus improves the transmission efficiency and accuracy of the mobile lifting mechanism.

[0014] Preferably, an inclined sliding groove is provided in the middle of the fixed plate, and a square sliding block fixedly connected to the supporting platform is slidably provided in the inner cavity of the inclined sliding groove.

[0015] By adopting the above technical solution, the cooperation of the inclined slide groove and the square slider realizes the oblique movement of the support platform, thereby adjusting the position of the transmission roller to adapt to copper rods of different diameters, ensuring stable rotation and uniform heating of the copper rods during the preheating process.

[0016] Preferably, a plurality of guide grooves are provided on the upper portion of the bottom plate, and movable rollers fixed to the fixed plate are slidably provided in the inner cavities of the plurality of guide grooves.

[0017] By adopting the above technical solution, the provision of the guide groove and the movable roller enhances the stability of the fixed plate during movement, preventing it from shaking or deviating from the track during movement.

[0018] Preferably, an L-shaped telescopic rod is fixedly provided on one side of the supporting platform and is slidably arranged with the bottom plate, and one side of the L-shaped telescopic rod is fixedly connected to the rack.

[0019] By adopting the above technical solution, the setting of the L-shaped telescopic rod realizes the linkage between the supporting platform and the rack, so that the movement of the rack can drive the supporting platform to move synchronously, thereby simplifying the structure of the mobile lifting mechanism.

[0020] Preferably, the flip switching mechanism includes a support plate fixedly arranged on the upper part of the side plate, and a heating device for preheating the copper rod is rotatably provided on the upper end of the support plate, and a T-shaped push rod is abutted on one side of the heating device, and an open card plate fixed to the support plate is provided on one side of the T-shaped push rod, and a push plate is slidably provided in the inner cavity of the open card, and the push plate and the push plate inner cavity are provided with a special-shaped groove, and a first push block is abutted on one side of the special-shaped groove, and a second push block is abutted on one side of the first push block, and a mountain-shaped supporting plate fixed to the supporting platform is fixed on one side of the second push block, and a third push block abutted on the T-shaped push rod is fixed on the upper part of the mountain-shaped supporting plate.

[0021] By adopting the above technical solution, the flipping and switching mechanism uses the movement of the support platform to drive the movement of the mountain-shaped support plate, the second push block and the third push block, and then realizes the flipping and switching of the heating equipment through the cooperation of the T-shaped push rod, the push plate and the special-shaped groove to adapt to the preheating of copper rods of different diameters, thereby improving the adaptability and flexibility of the preheating furnace.

[0022] Preferably, a vertical push rod is fixed on one side of the T-shaped push rod and the first push block, and a trapezoidal abutment block is fixed on the side of the vertical push rod away from the T-shaped push rod and the first push block, and the trapezoidal abutment block is abutted against the third push block and the second push block.

[0023] By adopting the above technical solution, the setting of the vertical push rod and the trapezoidal abutment block enhances the stability and accuracy of the T-shaped push rod and the first push block during movement, so that they can accurately abut and transmit with the third push block and the second push block, thereby improving the reliability and durability of the flip switching mechanism.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. The synergistic effect of a rotating opening and closing mechanism and a mobile lifting mechanism effectively solves the uneven preheating problem of traditional preheating furnaces when processing copper bars of different sizes. The rotating opening and closing mechanism automatically adjusts the opening diameter according to the diameter of the copper bar, ensuring that the copper bar can stably enter the preheating area. At the same time, the drive rollers in the mobile lifting mechanism drive the copper bar to rotate and maintain uniform heating during movement, avoiding local overheating or underheating.

[0025] 2. With the help of the flip switching mechanism, the appropriate heating equipment can be automatically selected for preheating according to the different diameters of the copper rods, avoiding the problem that traditional preheating furnaces cannot adapt to copper rods of various diameters due to fixed size limitations. The preheating furnace can handle a wider range of copper rod sizes, thereby improving production efficiency and product quality.

[0026] 3. The design of the support platform and transmission roller in the mobile lifting mechanism ensures the stable rotation of the copper rod during the preheating process; the support platform can adjust its position according to the diameter of the copper rod and drive the copper rod to rotate stably through the rotation of the transmission roller; in addition, the combination of the inclined slide groove and the square slider on the fixed plate further enhances the stability of the support platform during movement, preventing the copper rod from deflecting or shaking during rotation, thereby improving the uniformity and effect of preheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is the front and side view of the location distribution of the three major mechanisms of this application; Figure 3 This is a rear side view of the location distribution of the three major mechanisms of this application; Figure 4 This is an enlarged schematic diagram of the rotary opening and closing mechanism of the present application; Figure 5 This is an enlarged schematic diagram of the mobile lifting mechanism of this application; Figure 6 This is an enlarged cross-sectional view of a portion of the structure of the mobile lifting mechanism of this application; Figure 7 This is an exploded and enlarged view of a portion of the structure of the mobile lifting mechanism of this application; Figure 8 This is an enlarged view of the overall position of the flip switching mechanism of this application; Figure 9 This is an overall schematic diagram of the flip switching mechanism of this application; Figure 10 This is an enlarged diagram of the structure of the switching heating device of the present application; Figure 11 This is an enlarged view of the structural details of the switching heating device used in this application; Figure 12This is an exploded and enlarged view of the structure of the switching heating equipment used in this application.

[0028] Reference numerals: 100, control cabinet; 101, protective shell; 102, moving device; 103, copper rod; 200, rotary opening and closing mechanism; 201, servo motor; 202, pulley; 203, wire rope; 204, telescopic rod; 205, fixing ring; 206, arc-shaped abutment block; 207, rubber ring; 208, F-type fixing rod; 300, movable lifting mechanism; 301, bottom plate; 302, rack; 303, spur gear; 304, bevel gear set; 305, transmission set; 306, transmission shaft; 307, support platform; 308, fixed plate; 309, transmission roller; 310, arc-shaped block; 311, spring telescopic rod; 312, inclined slide; 313, square slider; 314, side plate; 315, guide groove; 316, movable roller; 317, L-shaped telescopic rod; 400, flip switching mechanism; 401, support plate; 402, heating device; 403, opening clamping plate; 404, push plate; 405, first push block; 406, second push block; 407, mountain-shaped supporting plate; 408, third push block; 409, T-shaped push rod; 410, special-shaped groove; 411, trapezoidal abutment block; 412, vertical push rod. DETAILED DESCRIPTION

[0029] The following is combined with Figures 1-12 This application is described in further detail.

[0030] The embodiment of the present application discloses a preheating furnace for continuous extrusion of copper processing.

[0031] Reference Figure 1 、 Figure 2 A preheating furnace for continuous extrusion of copper processing includes a control cabinet 100 and a protective shell 101 arranged in the middle of the upper surface of the control cabinet 100, and a moving device 102 composed of a linear drive device is fixedly arranged in a groove in the middle of the upper end surface of the control cabinet 100, and the moving device 102 is located inside the protective shell 101, and a rotating opening and closing mechanism 200 is provided at the open end of one side of the moving device 102 located in the protective shell 101, and the rotating opening and closing mechanism 200 is used to adjust the opening diameter according to copper rods 103 of different diameters, thereby being able to process copper rods 103 of different diameters.

[0032] Reference Figure 3 、 Figure 4The rotary opening and closing mechanism 200 includes a servo motor 201 fixedly arranged on the same side of the driving motor in the moving device 102, and a plurality of pulleys 202 are rotatably arranged on the baffle of the moving device 102 on the same side of the servo motor 201, and the number of the plurality of pulleys 202 is greater than two, and preferably five in this device, and one of the pulleys 202 is fixedly connected to the output end of the servo motor 201, and the remaining four pulleys 202 are symmetrically arranged on both sides of the servo motor 201 in a group of two, and steel wire ropes 203 are slidably arranged in the outer annular grooves of the four pulleys 202, and the outer annular grooves of the pulleys 202 fixedly connected to the output end of the servo motor 201 are fixedly connected to both ends of the steel wire rope 203; Reference Figure 3 、 Figure 4 , four pulleys 202 are respectively arranged at the upper and lower ends of the wire rope 203 in pairs, thereby supporting the wire rope 203 (such as Figure 4 As shown), the pulley 202 fixedly connected to the output end of the servo motor 201 is fixedly connected to the wire rope 203 to thereby realize the winding of the wire rope 203, and the wire rope 203 is movable in a circular shape and passes through one end of a plurality of telescopic rods 204 with the same structure, and a compression spring is provided in the middle of the plurality of telescopic rods 204, and the plurality of telescopic rods 204 are arranged in a circular shape, and a fixing ring 205 is provided in the center of the telescopic rods 204 arranged in a surrounding manner, and the fixing ring 205 is fixedly connected to the moving device 102, and the end of the telescopic rod 204 away from the wire rope 203 is movable and passes through the fixing ring 205.

[0033] Reference Figure 3 、 Figure 4 The two telescopic rods 204 need to be located on the transverse center axis of the fixing ring 205, so that the two telescopic rods 204 are in the same horizontal state, and the two pulleys 202 at the same level are fixed with an F-shaped fixing rod 208 on the side away from the fixing ring 205, so that the F-shaped fixing rod 208 can move synchronously with the telescopic rod 204, and the wire rope 203 can be inserted into several telescopic rods 204 in multiple circles, which is the same as the method of inserting suture through the eye of a steel needle. When the pulley 202 reels the wire rope 203, the wire rope 203 can drive the several circularly arranged telescopic rods 204 to move toward the center position, and under the abutment of the fixing ring 205, the compression spring arranged in the middle of the telescopic rod 204 is compressed during the movement of the telescopic rod 204, and when the wire rope 203 no longer applies force to the telescopic rod 204, the telescopic rod 204 is reset under the action of the compression spring.

[0034] Reference Figure 3 、 Figure 4, wherein the F-shaped fixing rods 208 fixed on the two telescopic rods 204 located at the same horizontal level of the fixing ring 205 move together with the telescopic rods 204, and several telescopic rods 204 pass through one end surface of the fixing ring 205 and are fixedly connected to the middle part of the outer arc surface of several arc-shaped abutment blocks 206 with the same structure, and the number of arc-shaped abutment blocks 206 is set to be consistent with the number of telescopic rods 204, and the setting positions of the arc-shaped abutment blocks 206 correspond to the setting positions of the telescopic rods 204. On the surface of the side of the several arc-shaped abutment blocks 206 away from the telescopic rods 204, a rubber ring 207 is fixedly provided, and the rubber ring 207 is made of a deformable material with a neutral hardness. Fluororubber is recommended here, but since it is a prior art, it will not be described in detail here.

[0035] It should be noted that the mobile device 102 and the servo motor 201, wherein the servo motor 201 can adopt the Instar series motor used in conjunction with the PLC, but since the above are all existing technologies, their structural principles will not be described in detail here.

[0036] The output end of the servo motor 201 is fixedly connected to one of the pulleys 202. When the output end of the servo motor 201 rotates, the pulley 202 is driven to rotate. When the pulley 202 rotates, the wire rope 203 is pulled to reel in. When the wire rope 203 is reeled in, it squeezes the telescopic rod 204, so that the telescopic rod 204 can move on the fixed ring 205. When the telescopic rod 204 passes through the fixed ring 205, it pushes the arc-shaped abutment block 206 and the rubber ring 20 fixedly connected to the arc-shaped abutment block 206. 7 moves synchronously toward the center position of the rubber ring 207. Since the plurality of arc-shaped abutting blocks 206 are all arc-shaped, a circle with a smaller diameter will be formed when the plurality of arc-shaped abutting blocks 206 move to a mutually fitting state, and a larger circle will be formed when the arc-shaped abutting blocks 206 move toward the outer circle. However, at this time, there will be a certain distance between the plurality of arc-shaped abutting blocks 206. Therefore, the rubber ring 207 is provided on the arc-shaped abutting blocks 206, and the distance between the plurality of arc-shaped abutting blocks 206 is optimized, so that the copper rod 103 can be better supported.

[0037] Reference Figure 5-Figure 8 A plurality of movable lifting mechanisms 300 are provided on the side of the F-shaped fixed rod 208 in the rotating opening and closing mechanism 200 away from the servo motor 201, and the plurality of movable lifting mechanisms 300 are used to push the copper rod 103 to move and rotate and preheat during the movement. The plurality of movable lifting mechanisms 300 are the same in structure and installation method, and in this device, preferably two are provided, and are respectively provided on both sides of the movable device 102.

[0038] Reference Figure 5-Figure 8The mobile lifting mechanism 300 includes a base plate 301 fixedly arranged on the side of the fixed ring 205 away from the servo motor 201, and the base plate 301 is located at the upper end of the sliding component on the moving device 102 and is slidably arranged with the sliding component, and two mutually symmetrical sliding grooves are opened on the base plate 301, and the sliding grooves have two openings, one opening is located on the side of the base plate 301, and the other opening is located on the upper surface of the base plate 301, and an L-shaped telescopic rod 317 is slidably arranged in the sliding groove, and the L-shaped telescopic rod 317 passes through the sliding groove and is located on one side of the upper surface of the base plate 301 and is configured to be telescopic (such as Figure 7 As shown), the L-shaped telescopic rod 317 is arranged on a side close to the F-shaped fixed rod 208, and the telescopic end of the L-shaped telescopic rod 317 is fixedly connected to the lower end of the support platform 307 located on the side of the F-shaped fixed rod 208, and the L-shaped telescopic rod 317 is located on the side of the opening of the slide groove on the side of the bottom plate 301 and is fixedly connected to the surface of one end of the rack 302, and the rack 302 is slidably arranged on the side of the bottom plate 301, and the lower end of the L-shaped telescopic rod 317 is fixedly connected to the moving part of the mobile device 102, so that when the L-shaped telescopic rod 317 moves with the moving part of the mobile device 102, it can drive the rack 302 to move.

[0039] Reference Figure 5-Figure 8 The rack 302 is meshed with the spur gear 303 on the side away from the bottom plate 301, and the spur gear 303 is rotatably mounted on the side plate 314. The side plate 314 is fixedly connected to the bottom plate 301, and the bevel gear set 304 is fixedly connected to the spur gear 303 and rotatably mounted on the side plate 314, and the bevel gear set 304 is meshed with each other at a ninety-degree angle (such as Figure 5 As shown), a transmission group 305 is rotatably provided on one side of the side plate 314 away from the F-shaped fixed rod 208, and the transmission group 305 is composed of a plurality of synchronous wheels and a synchronous belt. In this device, the transmission group 305 is composed of three synchronous wheels and a synchronous belt, one of which is fixedly connected to the bevel gear group 304, one of which is rotatably connected to the arc-shaped block 310 slidingly provided in the inner cavity of the side wall of the side plate 314, and a transmission shaft 306 is fixedly provided on one side of the other synchronous wheel, and the three synchronous wheels are arranged in a triangular shape (as shown). Figure 5 As shown in the figure), the wrap angle between each synchronous wheel and the synchronous belt is ensured to be greater than 120°, thus achieving efficient transmission.

[0040] Reference Figure 5-Figure 8When the cam 314 is unlocked, the lock 310 is unlocked and the lock 310 is unlocked, so that the cam 314 can be unlocked when the cam 314 is unlocked.

[0041] Reference Figure 5-Figure 8 , one of the synchronous wheels of the transmission group 305 is fixedly connected to the surface of one side of the transmission shaft 306, and a fixed plate 308 is movably provided at both ends of the transmission shaft 306, and one of the two fixed plates 308 is fixedly connected to the side plate 314, and the fixed plate 308 located on one side of the F-shaped fixed rod 208 is slidably set and limited with the side plate 314, and the two fixed plates 308 are provided with a fixed back plate (such as Figure 5 As shown), the fixed back plate is movably penetrated by two fixed plates 308, and the fixed back plate is fixedly connected to the F-shaped fixed rod 208, so that when the F-shaped fixed rod 208 moves, the fixed back plate is driven to move, and the fixed back plate and the several supporting platforms 307 that movably penetrate the transmission shaft 306 are in contact with each other, so that when the fixed back plate moves, it will push the supporting platforms 307 to move.

[0042] Reference Figure 5-Figure 8 The middle part of the supporting platform 307 is provided with upper and lower openings, and the fixed plate 308 is provided on one side of the opening and fits with the side wall of one side of the supporting platform 307, and a square slider 313 is fixed on the side wall fit with the fixed plate 308, and the square slider 313 is square, but the square slider 313 is set at an angle of 45°-60°, and a square inclined groove 312 is provided on the fixed plate 308, and the inclination angle of the inclined groove 312 is consistent with the inclination angle of the square slider 313, and at the same time, the inner diameter height of the inclined groove 312 is consistent with the outer diameter height of the square slider 313, so that the square slider 313 can be inserted into the inclined groove 312 and slide in the inner cavity of the inclined groove 312.

[0043] Reference Figure 5-Figure 8The middle part of the square slider 313 is movably penetrated by the transmission shaft 306, and the transmission shaft 306 penetrates the supporting platform 307 after movement, and then when the supporting platform 307 moves, the transmission shaft 306 will be driven to move together, and the oblique movement is achieved under the mutual cooperation of the square slider 313 and the inclined slide groove 312, and a transmission roller 309 that is arranged through both ends of the transmission shaft 306 is rotatably provided on the side of the fixed plate 308 away from the side wall of the supporting platform 307, wherein the transmission roller 309 on the side of the transmission group 305 is fixedly penetrated with the transmission shaft 306, and the transmission roller 309 on the side of the F-type fixed rod 208 is movably penetrated with the transmission shaft 306, but a horizontal bar for limiting is fixedly provided on the outer surface of the transmission shaft 306 (such as Figure 7 As shown), when the transmission shaft 306 rotates, it can still drive the transmission roller 309 located on one side of the F-shaped fixed rod 208 to rotate, and the transmission roller 309 is rotatably set in the support platform 307, and when the transmission shaft 306 rotates following the transmission group 305, it can drive the transmission roller 309 to rotate. At the same time, when the transmission shaft 306 moves following the support platform 307, it can drive the transmission roller 309 to move synchronously in an oblique direction.

[0044] It should be noted that the diameter of the support platform 307 on one side of the F-shaped fixing rod 208 where the transmission shaft 306 movably penetrates is greater than the height of the horizontal bar set on the transmission shaft 306 (such as Figure 5 、 Figure 7 As shown), at the same time, the square slider 313 located on one side of the F-shaped fixing rod 208 and the movable penetration point of the transmission shaft 306 are arranged in the same manner as above to avoid the occurrence of an unmovable scene.

[0045] Reference Figure 5-Figure 8 , a moving roller 316 is fixedly provided at the lower end of the supporting platform 307, and the upper end of the moving roller 316 is fixedly connected to the supporting platform 307 by a vertical support rod, and two guide grooves 315 are provided on the outside of the lower end, and the guide groove 315 on the side of the F-shaped fixed rod 208 is slidably set with the bottom plate 301, and the guide groove 315 on the side of the transmission group 305 is fixedly connected to the bottom plate 301 (as shown in FIG. Figure 5 、 Figure 6As shown), and the fixed back plate fixed to the F-shaped fixed rod 208 is slidably set on the upper surface of the guide groove 315, so that the guide groove 315 supports the fixed back plate, and the moving roller 316 supports the support platform 307 and moves with the support platform 307 in the smooth inner cavity of the guide groove 315. At the same time, the vertical support cross bar at the upper end of the moving roller 316 is retractable, and a compression spring (not shown in the figure) is provided in its inner cavity, so that when the support platform 307 moves obliquely, it can pull the vertical support rod in the moving roller 316 to retract and retract, and at the same time pull the compression spring. When the support platform 307 loses its thrust, under the gravity and the tension of the compression spring provided in the retraction groove of the vertical support rod of the moving roller 316, the support platform 307 can be reset and moved obliquely downward.

[0046] It should be noted that the structure of the support platform 307 on the side of the F-shaped fixed rod 208 has changed. A protrusion is provided on the side of the F-shaped fixed rod 208. Figure 5 As shown, the protrusion abuts against the side wall of the copper rod 103, and then when the supporting platform 307 located on one side of the F-shaped fixed rod 208 moves following the L-shaped telescopic rod 317, the copper rod 103 can be moved by the protrusion provided on the supporting platform 307, and then the copper rod 103 is pushed out, and the fixed plate 308 that slides and is limited with the side plate 314 and the transmission roller 309 that is movably penetrated and limited with the transmission shaft 306 move synchronously under the push of the supporting platform 307. Similarly, the guide groove 315 that is slidably provided with the bottom plate 301 will move together with the moving roller 316, and the fixed back plate that pushes the supporting platform 307 to move obliquely limits the movable guide groove 315 so that it will not move obliquely with the supporting platform 307 (as shown in FIG. Figure 6 shown).

[0047] When the L-shaped telescopic rod 317 moves following the moving part of the moving device 102, it will drive the rack 302 to move, and when the rack 302 moves, it will drive the spur gear 303 to rotate. When the spur gear 303 rotates, it will drive the bevel gear set 304 to rotate synchronously, and then drive the synchronous wheel in the transmission group 305 to rotate through the bevel gear set 304, and then drive the three synchronous wheels to rotate synchronously through the synchronous belt in the transmission group 305. When one of the synchronous wheels rotates, it will drive the transmission shaft 306 to rotate, and when the transmission shaft 306 rotates, it will drive the transmission roller 309 to rotate synchronously.

[0048] When the L-shaped telescopic rod 317 follows the movement of the moving part of the moving device 102, it will drive the supporting platform 307 located on the side of the F-shaped fixed rod 208 to move, and when the supporting platform 307 moves, it will drive the transmission roller 309 and the fixed plate 308 located on the same side to move. At the same time, the supporting platform 307 will also drive the moving roller 316 fixedly connected to its lower end to move, and when the moving roller 316 moves, it will drive the guide groove 315 located on the same side and slidingly arranged with each other to move, and the protruding part of the supporting platform 307 will fit in and abut the lower end of the side of the copper rod 103, and push the copper rod 103 forward during the movement.

[0049] The fixed back plate 308 is located on one side of the side plate 314 and is fixedly connected to the F-shaped fixed rod 208. When the F-shaped fixed rod 208 moves, the fixed back plate will be driven to move, and the fixed back plate will be abutted against the supporting platform 307. When the fixed back plate moves, it will push the supporting platform 307 to move. When the supporting platform 307 moves, it will drive the square slider 313 to move in the inclined slide groove 312. Under the guidance of the inclined slide groove 312, the square slider 313 and the supporting platform 307 will move obliquely upward, and drive the transmission roller 309 and the transmission shaft 306 to move obliquely upward synchronously. When the fixed back plate moves in the opposite direction following the F-shaped fixed rod 208, the supporting platform 307 loses its thrust and moves obliquely downward under the action of gravity and the tension of the compression spring set in the vertical support rod of the moving roller 316.

[0050] Reference Figures 8-12 , a plurality of flip switching mechanisms 400 are provided on one side of the upper end of the side plate 314 in the movable lifting mechanism 300, and the plurality of flip switching mechanisms 400 are identical in structure and installation method, and can switch the preheating equipment according to the different diameters of the copper rod 103, and the flip switching mechanism 400 includes a support plate 401 fixedly provided on the side of the upper part of the side plate 314 away from the F-shaped fixed rod 208, and a movable seat (such as Figure 9 As shown), a heating device 402 is rotatably provided in the movable seat, and a torsion spring (as shown) is provided at the junction of the movable seat and the heating device 402. Figure 10 As shown), a triangular block for limiting the position of the heating device 402 is fixedly provided at the lower end of the movable seat, and the triangular block can make the heating device 402 in a horizontal state. The heating device 402 in the horizontal state is normal, and the torsion spring at this time will not be wound and stored, and the lower end of the heating device 402 is set to a semicircular shape (as shown). Figure 9 As shown), the heating device 402 is placed on the upper portion of the copper rod 103, and the opening position of the heating device 402 is in a horizontal state with the central transverse axis of the copper rod 103.

[0051] Reference Figures 8-12 The heating device 402 is located on one side of the movable seat and a triangular block is fixedly provided thereon, and the triangular block and the upper end arc surface of the T-shaped push rod 409 abut against each other (as shown in FIG. Figure 9 The cam 412 is fixedly provided with a vertical push rod 412 in the middle of the side surface of the T-shaped push rod 409 away from the triangular block, and the vertical push rod 412 is fixedly provided with an inverted trapezoidal abutment block 411 at one end away from the T-shaped push rod 409, that is, the inclined surface of the trapezoidal abutment block 411 faces downward, and the T-shaped push rod 409 is provided with a protrusion at one end of the vertical push rod 412, and the protrusion is slidably arranged in the push plate 404, and a special-shaped groove 410 is provided in the push plate 404, so that the protrusion of the T-shaped push rod 409 and the special-shaped groove 410 are slidably arranged, and the outer surface of the push plate 404 is provided with an open card plate 403, and the push plate 404 is slidably connected to the open card plate 403, and the open card plate 403 is fixedly provided at the middle position of the side wall of the support plate 401, and a cylindrical protrusion is provided in the middle of the abutting surface of the inner cavity side wall of the unopened side of the push plate 404 and the open card plate 403 (as shown in FIG. Figure 12 As shown), a compression spring is provided on the outside of the protrusion for resetting the push plate 404, and one end of the compression spring is fixed to the push plate 404, and the other end is fixed to the side wall of the inner cavity of the opening clamping plate 403, thereby limiting the push plate 404 and the opening clamping plate 403 through the compression spring.

[0052] Reference Figures 8-12 The upper end of the vertical push rod 412 fixed to the T-shaped push rod 409 movably passes through the lower end of the open card plate 403, and the compression spring sleeved on the outer side of the vertical push rod 412 is located at one end of the T-shaped push rod 409 and is fixedly connected to the lower surface of the open card plate 403. When the T-shaped push rod 409 moves toward the side of the heating device 402, it will drive the vertical push rod 412 to move together and compress the compression spring sleeved on the outer side of the vertical push rod 412. When the T-shaped push rod 409 needs to be reset, the vertical push rod 412 is used to press the vertical push rod 412 to release the pressure. The compression spring sleeved on the outside can help the T-shaped push rod 409 to reset, and the special-shaped groove 410 is set as an inclined surface on the side of the vertical push rod 412, and a horizontal groove is set on the side away from the vertical push rod 412. The inner diameter of the groove is consistent with the outer diameter of the protrusion set at the lower end of the T-shaped push rod 409, so that the horizontal groove of the special-shaped groove 410 can insert and limit the protrusion of the T-shaped push rod 409. The T-shaped push rod 409 and the push plate 404 are staggered and slide against each other.

[0053] It should be noted that the control cabinet 100 uses a PLC to perform closed-loop control over the operation of the moving device 102 and the servo motor 201 in the rotating opening and closing mechanism 200, and a K-type thermocouple or a PT100 platinum resistance temperature sensor (not shown in the figure) is set on the upper part of the side plate 314 to detect the heating of the copper rod 103, and a pull-rope displacement sensor or a laser displacement sensor (not shown in the figure) monitors the rotating opening and closing mechanism 200 and the mobile lifting mechanism 300, thereby monitoring the displacement signal of the telescopic rod 204.

[0054] The control cabinet 100 is provided with a touch screen control interface, through which the operator can input the specification parameters of the copper rod, and the system automatically matches the opening and closing size, lifting height and preheating power; the equipment is equipped with an emergency stop button, a travel limiter, and a temperature abnormality alarm module (not shown in the figure) to improve the safety and intelligence of use. The clamping position is adjusted according to the set value of the diameter of the copper rod 103, and the sensor is used to determine whether the flip switching mechanism 400 has completed the action; if not, the system will alarm and lock the flip command of the heating device 402.

[0055] Only the protruding portion of the T-shaped push rod 409 is inserted into the inner cavity of the special-shaped groove 410, and the lower end width of the opening card 403 is greater than the upper end width (such as Figure 12 As shown), the upper end of the opening card plate 403 can be slidably arranged with the side of the T-shaped push rod 409, and the lower end of the opening card plate 403 can abut against the lower end of the T-shaped push rod 409, thereby limiting the T-shaped push rod 409 (as shown). Figure 11 shown).

[0056] Reference Figures 8-12 The special-shaped groove 410 is located on the inclined surface set on one side of the vertical push rod 412, and a first push block 405 is abutted. The first push block 405 is set in a right-angled triangle shape, and the inclined surface angle of the first push block 405 is consistent with the inclined surface angle of the special-shaped groove 410, so that the inclined surface of the first push block 405 and the inclined surface of the special-shaped groove 410 can fit each other and slide with each other, and the lower end surface of the first push block 405 abuts against the lower surface of the inner cavity of the opening card 403, and a vertical push rod 412 is fixedly provided in the middle of the side surface of the first push block 405 away from the special-shaped groove 410, and the vertical push rod 412 is fixed to the first push block 405. One end of the push block 405 is fixed and movably passes through the lower part of the open card plate 403, and a compression spring is sleeved on the outside of the vertical push rod 412, and the compression spring is located at one end of the first push block 405 and is fixedly connected to the lower end surface of the open card plate 403, and an inverted trapezoidal abutment block 411 is fixedly provided at the lower end of the vertical push rod 412 fixed to the first push block 405, and the vertical push rod 412, trapezoidal abutment block 411 and compression spring arranged at the lower end of the first push block 405 are consistent in structure with the vertical push rod 412, trapezoidal abutment block 411 and compression spring arranged at the lower end of the T-shaped push rod 409.

[0057] Reference Figures 8-12 The second push block 406 is provided with a trapezoidal abutment block 411 at the lower end of the first push block 405 and is abutted against the side of the vertical push rod 412, and the second push block 406 is in the shape of a right trapezoid, that is, the inclined surface of the second push block 406 faces upward, so that the inclined surfaces on both sides of the second push block 406 can abut against and slide against the inclined surfaces on both sides of the trapezoidal abutment block 411, and because the second push block 406 and the trapezoidal abutment block 411 are both trapezoidal in shape, that is, the upper end of the second push block 406 and the lower end of the trapezoidal abutment block 411 can abut against each other, and the side surface of the second push block 406 away from the trapezoidal abutment block 411 is fixedly connected to the mountain-shaped supporting plate 407, and the mountain-shaped supporting plate 407 is in the shape of a rake (such as Figure 12 As shown), that is, a plurality of protruding cross bars of different lengths are provided on one side of the support plate 401, and the plurality of protruding cross bars correspond to and are plugged into the vertical through slots provided in the middle of the plurality of support plates 401 (as shown). Figure 10 and Figure 12 As shown), the height of the through slot opened in the middle of the support plate 401 is greater than the lower surface of the opening card plate 403, so that the second push block 406 can follow the protruding cross bar of the mountain-shaped supporting plate 407 and insert into the through slot in the middle of the support plate 401.

[0058] Reference Figures 8-12 The side surface of the mountain-shaped supporting plate 407 away from the supporting plate 401 is fixedly connected to the supporting platform 307 (such as Figure 8 As shown), when the supporting platform 307 moves, it can drive the mountain-shaped supporting plate 407 to move, thereby driving the second push block 406 to move, so that the second push block 406 can abut against the trapezoidal abutting block 411 fixed at the lower end of the first push block 405, thereby pushing the trapezoidal abutting block 411 to move upward, and then pushing the first push block 405 and the push plate 404, so that the transverse groove of the special-shaped groove 410 releases the T-shaped push rod 409, so that the T-shaped push rod 409 moves downward under the action of the compression spring provided at the lower end of the T-shaped push rod 409, thereby releasing the heating device 402 and turning it over under the action of the torsion spring at the connection between the heating device 402 and the movable seat.

[0059] Reference Figures 8-12 The second push block 406 is located on one side of the T-shaped push rod 409 and a third push block 408 is provided. The third push block 408 corresponds to the T-shaped push rod 409, and the surface of the third push block 408 away from the T-shaped push rod 409 is fixedly connected to the mountain-shaped support plate 407. The third push block 408 has the same structure as the second push block 406, but the height of the third push block 408 is greater than the height of the second push block 406, so that the third push block 408 can push the protrusion on the T-shaped push rod 409 to be inserted into the horizontal groove at the upper end of the inner cavity of the special-shaped groove 410.

[0060] It should be noted that, a number of second push blocks 406 and third push blocks 408 are fixedly arranged on the protruding cross bars on the U-shaped support plate 407, and the lengths of the protruding cross bars on the U-shaped support plate 407 are inconsistent, that is, the lengths of the protruding cross bars on the U-shaped support plate 407 are set according to the positions of the third push blocks 408 and the second push blocks 406, and a number of third push blocks 408 and the second push blocks 406 are staggered (e.g. Figure 10 and Figure 11 As shown), thereby ensuring that when the mountain-shaped supporting plate 407 moves, only one second push block 406 or the third push block 408 will abut against the corresponding trapezoidal abutting block 411; Either the third push block 408 pushes the T-shaped push rod 409 to be clamped and limited in the special-shaped groove 410, and when the protruding part of the T-shaped push rod 409 is located at the lower part of the special-shaped groove 410, that is, the inclined surface, the protruding part of the T-shaped push rod 409 and the transverse groove of the special-shaped groove 410 are located on the same horizontal line, and then when the T-shaped push rod 409 moves upward, it will push the push plate 404 to move. When the protruding part of the T-shaped push rod 409 and the transverse groove of the inner cavity of the special-shaped groove 410 are located at the same horizontal position, the push plate 404 is pushed to reset under the action of the compression spring between the opening clamping plate 403 and the push plate 404, thereby limiting the T-shaped push rod 409.

[0061] Torsion springs primarily use torque to express their elastic action, and their calculation formula is usually based on the spring's stiffness (elastic modulus). The basic formula is: M = K · θ, where: M is the torque generated by the torsion spring when it recovers (usually in N·m or lb·ft); θ is the torsion angle (measured in radians); and K is the stiffness of the torsion spring, which represents the restoring torque generated per unit angle. For a standard circular cross-section torsion spring, the stiffness K is calculated as: K = (G · d 4 ) / (10.8 · D · n) where: G is the shear modulus of the material (usually expressed in N / m² or psi); d is the diameter of the torsion spring wire; D is the average diameter of the torsion spring; n is the number of effective coils; and the constant 10.8 is an empirical coefficient used to correct for actual mechanical distribution (this value may vary slightly depending on the design and standard).

[0062] The heating device 402, the vertical push rod 412, and the compression springs sheathed on the outside of the spring telescopic rod 311 are all existing technologies. The heating device 402 can be customized by Hongchuang High Frequency Company. The value of the compression spring can be calculated using the calculation formula of Taijin Lihuang Single Spring: F=kx, where F is the external force applied to the spring, unit: K is the spring coefficient, unit: N / m, x is the deformation of the spring, unit: m, and then the elastic force of the alloy spring is calculated so that it can be used in this device. However, since it is existing technology, its structural principle will not be repeated here.

[0063] When the support platform 307 is located on one side of the side plate 314, the distance between the support platforms 307 is the longest, and the diameter of the copper rod 103 that can be supported is the largest. At this time, the support platform 307 drives the second push block 406 on the side of the side plate 314 on the mountain-shaped support plate 407 to abut against the trapezoidal abutment block 411 on the same side, and the trapezoidal abutment block 411 pushes the first push block 405 to move upward through the vertical push rod 412, and then pushes the push plate 404 to move horizontally toward the side wall of the inner cavity of the opening card plate 403 through the first push block 405. When the push plate 404 moves horizontally, the upper horizontal groove in the inner cavity of the special-shaped groove 410 is separated from the protruding part of the T-shaped push rod 409, and the T-shaped push rod 409 moves downward under the action of the compression spring sleeved on the outside of the lower end vertical push rod 412, so that the T-shaped push rod 409 no longer abuts and limits the heating device 402, and the heating device 402 is flipped around the movable seat under the action of the torsion spring provided at the connection with the movable seat on the support plate 401, so that the opening of the heating device 402 is flush with the central axis of the copper rod 103.

[0064] At this time, the other third push blocks 408 fixed on the protruding horizontal bar of the mountain-shaped support plate 407 push their corresponding T-shaped push rods 409 into the special-shaped grooves 410 for limiting, so that the T-shaped push rods 409 push their corresponding heating devices 402 to flip over and are in a waiting state. The heating devices 402 in the several flip switching mechanisms 400 are arranged in sequence according to the diameter size of the opening of the mobile device 102 starting from the side close to the side plate 314, and the number of several flip switching mechanisms 400 is set according to actual usage.

[0065] The implementation principle of a preheating furnace for continuous extrusion of copper processing in an embodiment of the present application is as follows: first, the output end of the servo motor 201 rotates to drive the pulley 202 to pull the wire rope 203 for winding, and when the wire rope 203 is wound, the telescopic rod 204 is squeezed to move on the fixed ring 205, and then the telescopic rod 204 passes through one end of the fixed ring 205 to push the arc-shaped abutment block 206 and the rubber ring 207 to move toward the center position, and then the diameter of the rubber ring 207 is adjusted according to the diameter of the copper rod 103, so that the copper rod 103 can pass better into the interior of the equipment.

[0066] When the telescopic rod 204 moves, the F-shaped fixed rod 208 will move with it. At this time, the F-shaped fixed rod 208 will drive the fixed back plate to move, thereby pushing the supporting platform 307 to move, and the supporting platform 307 drives the square slider 313 to move in the inclined slide groove 312, and under the guidance of the inclined slide groove 312, the square slider 313 and the supporting platform 307 move obliquely upward, thereby causing the transmission roller 309 and the transmission shaft 306 to move obliquely upward synchronously, and then be able to be adjusted synchronously with the rotating opening and closing mechanism 200, so that the supporting platform 307 can change the supporting position according to the diameter of the copper rod 103, thereby better supporting the copper rod 103.

[0067] At the same time, when the support platform 307 moves, it will drive the second push block 406 on the mountain-shaped support plate 407 to abut against the trapezoidal abutment block 411 on the same side, and the trapezoidal abutment block 411 will push the first push block 405 upward through the vertical push rod 412, and then push the push plate 404 to move horizontally through the first push block 405. When the push plate 404 moves horizontally, the horizontal groove in the inner cavity of the special-shaped groove 410 is separated from the protruding part of the T-shaped push rod 409, and the T-shaped push rod 409 moves downward under the action of the compression spring, so that the T-shaped push rod 409 no longer limits the heating device 402, and the heating device 402 is flipped around the movable seat through the torsion spring arranged at the connection with the movable seat of the support plate 401, so that the opening of the heating device 402 is flush with the central axis of the copper rod 103, thereby preheating the copper rod 103.

[0068] While the copper rod 103 is being heated, the moving device 102 will push the L-shaped telescopic rod 317 to move, and the L-shaped telescopic rod 317 will drive the rack 302 to move, thereby driving the spur gear 303 to rotate, and the spur gear 303 will drive the bevel gear set 304 and the transmission set 305 to rotate synchronously, and then the transmission shaft 306 will be driven to rotate through the rotation of one of the synchronous wheels of the transmission set 305, and when the transmission shaft 306 rotates, it will drive the transmission roller 309 to rotate synchronously, and then the copper rod 103 will be driven to rotate through the transmission roller 309.

[0069] When the L-shaped telescopic rod 317 moves with the moving device 102, it will drive the supporting platform 307 located on the side of the F-shaped fixed rod 208 to move, and the supporting platform 307 will drive the transmission roller 309 and the fixed plate 308 located on the same side to move. At the same time, the supporting platform 307 will also drive the moving roller 316 fixedly connected to its lower end to move, and the movement of the moving roller 316 will drive the guide groove 315 located on the same side to move, and the protruding part of the supporting platform 307 will be in contact with the lower end of the side of the copper rod 103, and push the copper rod 103 forward during the movement, so that the copper rod 103 can rotate and move at the same time until it is completely preheated and pushed out.

[0070] The above are merely optional embodiments of the present application and are not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A preheating furnace for continuous extrusion of copper processing, characterized by: The invention comprises a control cabinet (100) and a protective shell (101), wherein a moving device (102) is provided at the upper end of the control cabinet (100), and a rotating opening and closing mechanism (200) is provided on one side of the moving device (102) for changing the opening diameter according to copper rods (103) of different sizes, and a plurality of moving lifting mechanisms (300) are provided on one side of the rotating opening and closing mechanism (200) for rotating and pushing the copper rods (103) for preheating, and a plurality of flip switching mechanisms (400) are provided on one side of the moving lifting mechanism (300) for switching the preheating equipment according to the different diameters of the copper rods (103).

2. A preheating furnace for continuous extrusion of copper processing according to claim 1, characterized in that: The rotary opening and closing mechanism (200) comprises a servo motor (201) fixedly mounted on one side of the mobile device (102); a plurality of pulleys (202) are provided on one side of the output end of the servo motor (201); steel wire ropes (203) are provided in grooves on the outer annular surfaces of the plurality of pulleys (202); the steel wire ropes (203) are inserted into one end of a plurality of annularly arranged telescopic rods (204); one end of the plurality of telescopic rods (204) movably passes through a fixed ring (205) fixedly connected to the mobile device (102); a plurality of arc-shaped abutting blocks (206) fixedly connected to the telescopic rods (204) are provided on the inner annular surface of the fixed ring (205); and a rubber ring (207) is fixedly provided on the side of the plurality of arc-shaped abutting blocks (206) away from the telescopic rods (204).

3. A preheating furnace for continuous extrusion of copper processing according to claim 2, characterized in that: One end of each of the two telescopic rods (204) located horizontally is fixedly penetrated by an F-shaped fixing rod (208).

4. A preheating furnace for continuous extrusion of copper processing according to claim 1, characterized in that: The mobile lifting mechanism (300) comprises a base plate (301) fixedly arranged on one side of a fixed ring (205); a rack (302) is slidably arranged on one side of the base plate (301); a spur gear (303) is meshed with one side of the rack (302); a bevel gear set (304) is fixedly arranged on one side of the spur gear (303); a transmission group (305) is arranged on one side of the bevel gear set (304); a transmission shaft (306) is arranged on one side of the transmission group (305); support platforms (307) are arranged at both ends of the transmission shaft (306); a fixed plate (308) is slidably arranged inside the support platform (307); and a transmission roller (309) for driving the copper rod (103) to rotate is arranged on one side of the fixed plate (308).

5. A preheating furnace for continuous extrusion of copper processing according to claim 4, characterized in that: Side plates (314) are fixedly provided on both sides of the upper end of the bottom plate (301), a spring telescopic rod (311) is provided in the middle of the inner cavity of one side of the side plate (314), and an arc-shaped clamping block (310) is fixedly provided on one side of the spring telescopic rod (311) and is in contact with one of the transmission groups (305).

6. A preheating furnace for continuous extrusion of copper processing according to claim 4, characterized in that: An inclined slide groove (312) is provided in the middle of the fixed plate (308), and a square sliding block (313) fixedly connected to the supporting platform (307) is slidably provided in the inner cavity of the inclined slide groove (312).

7. A preheating furnace for continuous extrusion of copper processing according to claim 4, characterized in that: A plurality of guide grooves (315) are provided on the upper portion of the bottom plate (301), and movable rollers (316) fixedly connected to the fixed plate (308) are slidably provided in the inner cavities of the plurality of guide grooves (315).

8. The preheating furnace for continuous extrusion of copper processing according to claim 6, characterized in that: An L-shaped telescopic rod (317) is fixedly provided on one side of the supporting platform (307) and is slidably arranged with the bottom plate (301). One side of the L-shaped telescopic rod (317) is fixedly connected to the rack (302).

9. The preheating furnace for continuous extrusion of copper processing according to claim 1, characterized in that: The flip switching mechanism (400) comprises a support plate (401) fixedly mounted on the upper portion of the side plate (314); a heating device (402) for preheating the copper rod (103) is rotatably mounted on the upper end of the support plate (401); a T-shaped push rod (409) is abutted against one side of the heating device (402); an opening card (403) fixedly mounted on the support plate (401) is disposed on one side of the T-shaped push rod (409); a push plate is slidably mounted in the inner cavity of the opening card (403) (404), a special-shaped groove (410) is provided in the inner cavity of the push plate (404), a first push block (405) is provided on one side of the special-shaped groove (410), a second push block (406) is provided on one side of the first push block (405), a mountain-shaped support plate (407) fixed to the support platform (307) is fixed on one side of the second push block (406), and a third push block (408) is provided on the upper part of the mountain-shaped support plate (407) and is provided to abut against the T-shaped push rod (409).

10. A preheating furnace for continuous extrusion of copper processing according to claim 9, characterized in that: A vertical push rod (412) is fixedly provided on one side of the T-shaped push rod (409) and the first push block (405), and a trapezoidal abutting block (411) is fixedly provided on one side of the vertical push rod (412) away from the T-shaped push rod (409) and the first push block (405). The trapezoidal abutting block (411) is abutted against the third push block (408) and the second push block (406).

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