High-precision centering metal ultra-thin strip horizontal annealing furnace device and operation method

Abstract

The invention relates to a high-precision centering metal ultra-thin strip horizontal annealing furnace device and an operation method, and belongs to the field of metal ultra-thin strip hot working. The device sequentially comprises an uncoiling device, a gantry row welding device, an inlet tension S roller device, a tension measuring roller device, a front water jacket device, a heating furnace body, an air cooling device, an outlet tension S roller device, a two-roller deviation rectifying device and a coiling device. The gantry row welding device comprises a cutting platform, a tape leading platform and a high-precision camera sensor, buckles are slidably connected to the top of the cutting platform and the top of the tape leading platform, and the positions of the buckles can be controlled through the high-precision camera sensor. The centering precision during welding of the metal ultra-thin strip and the leading strip is accurately controlled, and the production efficiency is remarkably improved; the bottom of the outer side of the air cooling shell and the air cooling base as well as the bottom of the outer side of the front water jacket shell and the front water jacket base are in sliding connection, so that the service life of the annealing furnace is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field related to hot processing of metal ultra-thin strips, and relates to a high-precision centering metal ultra-thin strip horizontal annealing furnace device and an operating method Background Art

[0002] Ultra-thin metal strips are widely used in high-precision manufacturing fields such as electronic components, precision instruments, and new energy batteries due to their excellent mechanical properties and outstanding surface quality. During the processing, ultra-thin metal strips need to be formed by large plastic rolling, but the drastic deformation will introduce residual stress and cause lattice distortion, so the mechanical properties and microstructure need to be regulated through annealing process.

[0003] Annealing, as the core process of metal strip processing, can effectively eliminate the internal stress of the material, refine the grain structure, and restore the plasticity of the material, thereby improving its comprehensive performance. However, during the annealing process, the tension fluctuations of the extremely thin metal strips can easily cause local stress concentration in the strips and the centering deviation can cause the strips to deviate. These problems can easily induce defects such as strip breakage, surface scratches, and plate warping, which not only reduce production efficiency, but also affect product dimensional accuracy and surface consistency; at the same time, the muffle in the furnace will expand and contract with the heating temperature and easily deform, which will reduce the service life of the annealing furnace. It is difficult to meet the stringent requirements of high-end application scenarios and the long-term application of annealing furnaces.

[0004] Therefore, how to break through the technical barriers of high-quality annealing of ultra-thin metal strips and meet the stringent requirements of material performance in the high-end manufacturing field is a technical problem that technical personnel in this field currently need to solve. Summary of the invention

[0005] In view of this, the present invention provides a high-precision aligned horizontal annealing furnace device and an operating method for extremely thin metal strips in order to solve the problems of low production efficiency, poor product dimensional accuracy and surface consistency, and short annealing furnace service life caused by defects such as strip deviation, furnace body deformation inducing strip breakage, surface scratches, and plate shape warping during the annealing process of extremely thin metal strips. The annealing furnace can achieve high-precision online alignment of extremely thin metal strips, improve production efficiency, reduce deformation of the muffle tank, increase the service life of the annealing furnace, and improve the strip shape quality.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A high-precision centering metal ultra-thin strip horizontal annealing furnace device, which includes an unwinding device, a gantry welding device, an inlet tension S roller device, a tension measuring roller device, a front water jacket device, a heating furnace body, an air cooling device, an outlet tension S roller device, a two-roller deviation correction device and a winding device in sequence along the metal ultra-thin strip threading direction;

[0008] The gantry welding device includes a cutting platform, a guide platform and a high-precision camera sensor. The tops of the cutting platform and the guide platform are slidably connected with buckles, and the position of the buckles can be controlled by the high-precision camera sensor.

[0009] The front water jacket device comprises a front water jacket shell and a front water jacket base, and the outer bottom of the front water jacket shell and the front water jacket base are slidably connected;

[0010] The air cooling device comprises an air cooling shell and an air cooling base, and the bottom of the outer side of the air cooling shell is slidably connected to the air cooling base.

[0011] Furthermore, the heating furnace body includes a muffle tank body, high-temperature refractory bricks, high-aluminum needle-punched fiber blankets, thermal insulation mud, main aluminum fire baffles, furnace body shells, nano-bottom plates, heating furnace wires, and high-precision thermocouples; the furnace body shells are fixedly arranged on the top and both sides of the heating furnace body, and the bottom of the heating furnace body is fixedly arranged with nano-bottom plates. The heating furnace body is divided into four temperature control zones, and each temperature control zone is staggered with heating furnace wires at the top and bottom of the muffle tank body in sequence. A high-precision thermocouple is arranged at the initial and end positions of the muffle tank body of each temperature control zone, which is used to accurately measure the temperature at the initial and end positions of each temperature control zone. The temperature of the four temperature control zones is detected by high-precision thermocouples to ensure the temperature accuracy of each temperature control zone; the outside of the muffle tank is sequentially provided with thermal insulation materials such as high-temperature refractory bricks, high-aluminum needle-punched fiber blankets, thermal insulation mud, and main aluminum fire baffles, which effectively slow down the heat loss in the furnace and ensure that the external working temperature of the annealing furnace is not affected.

[0012] Furthermore, high-temperature refractory bricks are fixedly installed around the outside of the muffle tank body, high-aluminum needle-punched fiber blankets are fixedly wrapped on the top and both sides of the high-temperature refractory bricks, the outer periphery of the high-aluminum needle-punched fiber blanket is coated with insulation mud, and a main aluminum fire baffle is fixedly installed on the bottom of the high-temperature refractory bricks.

[0013] Furthermore, the unwinding device includes an unwinding gear box, a hydraulic unwinding drum, an unwinding motor, an unwinding platform, an unwinding base, a second centering motor, and an unwinding camera sensor; the output end and the input end of the unwinding gear box are respectively fixedly provided with a hydraulic unwinding drum and an unwinding motor, the unwinding gear box is fixedly installed on the top of the unwinding platform, the unwinding platform is slidably connected to the top of the unwinding base, and one side of the unwinding base is fixedly connected with a second centering motor, the second centering motor controls the movement of the unwinding platform to realize the centering of the strip production line, and an unwinding camera sensor is fixedly provided on the top of the unwinding platform near the unwinding gear box; the CPC centering of the strip is realized by the camera sensors and the centering motors of the unwinding device and the winding device to ensure the position accuracy of the entire strip on the entire platform.

[0014] Furthermore, the gantry welding device also includes a gantry bracket, an upper row of welding heads and a lower row of welding heads. The above-mentioned cutting platform and the lead tape platform are fixedly arranged on both sides of the outside of the gantry bracket, and the upper row of welding heads and the lower row of welding heads are slidably connected inside the gantry bracket. The upper row of welding heads and the lower row of welding heads can move up and down along the inside of the gantry bracket to spot weld the annealed material and the lead tape. The above-mentioned high-precision camera sensor is fixedly arranged on one side of the top of the gantry bracket. The position of the buckle can be controlled by the high-precision camera sensor to achieve complete alignment when the annealed material and the lead tape are welded; to prevent the extremely thin metal strip from being torn off under the action of tension and annealing due to the position deviation of the strip during welding, thereby affecting the production efficiency.

[0015] Furthermore, the entrance tension S roller device includes S roller three, S roller four, an entrance S roller base, belt two, and an entrance S roller motor; S roller three and S roller four are fixedly arranged on the top of the entrance S roller base through a bearing seat, and one side of S roller three and S roller four are connected to the output end of the entrance S roller motor through belt two; S roller three and S roller four are both connected to a separate motor drive, and the entrance and exit S roller devices and the tension measuring roller cooperate with each other to ensure the tension accuracy of the strip in the annealing furnace.

[0016] Furthermore, the measuring roller device includes a second direction roller, a measuring roller, a tension sensor, and a measuring roller base; the second direction roller is fixedly connected to one side of the top of the measuring roller base through a bearing seat, and the measuring roller is fixedly connected to the other side of the top of the measuring roller base through the tension sensor.

[0017] Furthermore, the front water jacket device also includes two nitrogen outlets, two graphite rollers and a waste discharge port; a second nitrogen outlet is opened at the top of one side of the interior of the front water jacket shell, a pair of two graphite rollers are rotatably arranged on the outlet side and the inlet side of the front water jacket shell, and a waste discharge port is opened at the top of the outer side of the front water jacket shell.

[0018] Furthermore, the air cooling device also includes a hydrogen outlet, a fin-tube heat exchanger, a nitrogen outlet and a graphite roller; hydrogen outlets are provided at the top and bottom of one side of the interior of the air-cooled shell, and a fin-tube heat exchanger is fixedly provided on one side of the two hydrogen outlets close to the inner core of the air-cooled device, a nitrogen outlet is provided at the top of the other side of the interior of the air-cooled shell, and a pair of graphite rollers are rotatably provided on the outlet and inlet sides of the air-cooled shell; hydrogen is used to cool the strip through water circulation of the fin-tube heat exchanger, thereby effectively improving the cooling rate of the strip, and hydrogen enters the heating furnace body to bright anneal the strip in the furnace body.

[0019] Furthermore, the export tension S-roller device includes S-roller 1, S-roller 2, an export S-roller base, belt 1, and an export S-roller motor; S-roller 1 and S-roller 2 are fixedly arranged on the top of the export S-roller base through a bearing seat, and one side of S-roller 1 and S-roller 2 are connected to the output end of the export S-roller motor through belt 1; S-roller 1 and S-roller 2 are both connected to a separate motor drive to provide tension precision control for the annealed strip, and play a micro-straightening role on the strip after annealing, thereby improving the strip shape quality.

[0020] Furthermore, the two-roller deflection correction device includes deflection correction roller 1, deflection correction roller 2, deflection correction roller base, deflection correction motor, direction roller 1, and position sensor; a slide rail is arranged on the top of the deflection correction roller base, and deflection correction roller 1 and deflection correction roller 2 are both slidably connected to the slide rail through a bearing seat, and the positions of deflection correction roller 1 and deflection correction roller 2 in the slide rail are controlled by the deflection correction motor to realize online deflection correction, and the top of the deflection correction roller base away from the heating furnace body is fixedly provided with direction roller 1 through a bearing seat, and the side of the deflection correction roller base close to the heating furnace body is fixedly provided with a position sensor. The strip EPC position deflection correction is realized by two-roller deflection correction and position sensor to ensure the position accuracy of the strip in the heating furnace body.

[0021] Furthermore, the winding device includes a winding gear box, a hydraulic winding drum, a winding motor, a winding platform, a winding base, a centering motor 1, and a winding camera sensor; the output end and input end of the winding gear box are respectively fixedly provided with a hydraulic winding drum and a winding motor, the winding gear box is fixedly installed on the top of the winding platform, the winding platform is slidably connected to the top of the winding base, and one side of the winding base is fixedly connected with a centering motor 1, the centering motor 1 controls the movement of the winding platform to realize online centering of the strip production line, and a winding camera sensor is fixedly provided on the top of the winding platform near the winding gear box.

[0022] Furthermore, the surfaces of the rollers used in the outlet tension S roller device, the two-roller deviation correction device, the tension measuring roller device and the inlet tension S roller device are all coated with polyurethane to prevent the surface of the strip from being scratched.

[0023] Furthermore, the muffle tank body adopts a longitudinal and transverse wave structure to reduce the high-temperature creep deformation of the tank body and increase the service life of the annealing furnace.

[0024] Furthermore, nitrogen outlet 1 of the air cooling device and nitrogen outlet 2 of the front water jacket device both form a nitrogen curtain vertically downward, and the nitrogen curtain seals the heating furnace body, the front water jacket and the air cooling device to form a closed space to prevent hydrogen leakage.

[0025] An operating method of a high-precision centering metal ultra-thin strip horizontal annealing furnace device comprises the following steps:

[0026] S1. Threading of extremely thin metal belt: specifically:

[0027] S11. Place the rolled metal ultra-thin strip to be annealed together with the reel on the hydraulic unwinding reel, pull out the movable end of the rolled metal ultra-thin strip and place it on the unwinding platform, place the leader on the leader platform, clamp the metal ultra-thin strip and the leader respectively with the buckle, roughly align the positions, and then use the high-precision camera sensor on the top of the gantry welding device to achieve complete centering under the control of the system;

[0028] S12, after waiting for the metal ultra-thin strip and the lead strip to be completely aligned, the upper row welding head and the lower row welding head move along the fixed track of the gantry support to weld the metal ultra-thin strip and the lead strip, and after the welding is completed, release the buckle, and the upper row welding head and the lower row welding head return to the initial position;

[0029] S13, the strip first passes through the top of S roller 3 and is wrapped half a circle, then passes through the top of S roller 4 and is wrapped half a circle, then passes through the bottom of direction roller 2 and the top of measuring roller, and then enters the front water jacket device, passes through the two groups of graphite rollers 2 at the entrance and exit of the front water jacket device, and enters the heating furnace body;

[0030] S14, after passing through the heating furnace body, it enters the air cooling device, and passes through the two groups of graphite rollers 1 at the entrance and exit of the air cooling device in turn. After passing through the top of S roller 1 and wrapping half a circle, it passes through the top of S roller 2 and wraps half a circle, and then passes through the bottom of correcting roller 1, the top of correcting roller 2, and the top of direction roller 1 in turn, and is finally connected to the hydraulic winding reel.

[0031] S2, annealing of the metal ultra-thin strip: annealing the metal ultra-thin strip after the stripping in step S1, specifically:

[0032] S21, turning on the heating wire inside the heating furnace body, and continuously monitoring and controlling the temperature of the muffle tank body through high-precision thermocouples at the beginning and end of the four temperature control zones;

[0033] S22, opening the nitrogen air outlet 2 of the front water jacket device and the nitrogen air outlet 1 of the air cooling device, and then opening the hydrogen air outlet of the air cooling device, so that the hydrogen passes through the fin-tube heat exchanger of the water cooling cycle to quickly cool the strip;

[0034] S23, enters the front water jacket device and is discharged from the waste discharge port, where the hydrogen is ignited and discharged.

[0035] The beneficial effects of the present invention are:

[0036] 1. The present invention discloses a high-precision centered horizontal annealing furnace device for ultra-thin metal strips. The high-precision camera sensor of the gantry welding device is used to adjust the snap-on positioning of the opening platform and the lead platform, and the centering accuracy of the ultra-thin metal strip and the lead strip is accurately controlled during welding, so as to avoid the strip being broken due to tension and annealing caused by eccentricity during operation; the position sensor of the two-roller correction device is linked to the correction motor to dynamically adjust the position of the correction roller to achieve online EPC correction of the strip; at the same time, the camera sensor of the unwinding and winding device controls the centering motor to adjust the position of the unwinding and winding platform in real time, and completes the CPC centering control of the ultra-thin metal strip in the process platform. The EPC and CPC dual correction systems work together to ensure the centering of the strip throughout the annealing process, eliminate the risk of eccentricity and breakage, and significantly improve production efficiency.

[0037] 2. The present invention discloses a high-precision centered metal ultra-thin strip horizontal annealing furnace device, in which the muffle tank body is designed with a longitudinal and transverse wave structure, which reduces the high-temperature creep deformation of the tank body and improves the service life of the annealing furnace; the bottom of the outer side of the air-cooled shell and the air-cooled base, the bottom of the outer side of the front water jacket shell and the front water jacket base are all connected by sliding, and can slide freely along the direction of the steel strip, avoiding thermal expansion and contraction deformation of the muffle tank caused by the fixation of the front water jacket device and the air-cooled device, thereby extending the service life of the annealing furnace.

[0038] 3. The present invention discloses a high-precision centered horizontal annealing furnace device for extremely thin metal strips. Each S roller of the exit S roller device and the entrance S roller device is controlled by a separate motor and is combined with a tension measuring roller to ensure the tension accuracy of the strip in the annealing furnace. The exit S roller device plays a micro-straightening role on the extremely thin metal strip after annealing, thereby improving the quality of the strip shape. The surfaces of the rollers used in the exit tension S roller device, the two-roller deviation correction device, the tension measuring roller device and the entrance tension S roller device are all coated with polyurethane to prevent scratches on the strip surface.

[0039] 4. The present invention discloses a high-precision aligned metal ultra-thin strip horizontal annealing furnace device, which uses hydrogen to air-cool the strip through a circulating water-cooled fin-tube heat exchanger, effectively improving the cooling rate of the strip, and the hydrogen enters the heating furnace body to bright anneal the strip in the furnace body; a nitrogen curtain is set in the air cooling device and the front water jacket device, and a waste discharge port is opened to prevent hydrogen leakage.

[0040] 5. The invention discloses a high-precision aligned metal ultra-thin strip horizontal annealing furnace device, which adopts a four-stage temperature control structure. Each temperature control zone entrance is equipped with a high-precision thermocouple to ensure the temperature control accuracy. The heating furnace body adopts a composite insulation layer of high-temperature refractory bricks, high-aluminum needle-punched fiber blankets and insulation mud to effectively slow down the heat loss in the furnace while maintaining the stability of the ambient temperature outside the furnace.

[0041] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0043] Figure 1 It is a structural schematic diagram of a high-precision centering metal ultra-thin strip horizontal annealing furnace device of the present invention;

[0044] Figure 2 It is a front view of a high-precision centering metal ultra-thin strip horizontal annealing furnace device and an internal structure diagram of the heating furnace body of the present invention;

[0045] Figure 3 It is a schematic cross-sectional view of a heating furnace body in a high-precision centering metal ultra-thin strip horizontal annealing furnace device of the present invention;

[0046] Figure 4 A top view of a high-precision centering metal ultra-thin strip horizontal annealing furnace device according to the present invention;

[0047] Figure 5 It is a schematic diagram of a muffle tank in a high-precision centering metal ultra-thin strip horizontal annealing furnace device of the present invention;

[0048] Figure 6 It is a schematic diagram of the water cooling cycle operation of the fin tube heat exchanger in a high-precision centering metal ultra-thin strip horizontal annealing furnace device of the present invention;

[0049] Figure 7 It is a schematic diagram of the position of the strip and the leader when welding in the gantry welding device in a high-precision centering metal ultra-thin strip horizontal annealing furnace device of the present invention;

[0050] Figure 8 The present invention is a schematic diagram of a high-precision centering metal ultra-thin strip horizontal annealing furnace device for threading the strip.

[0051] Figure numerals: heating furnace body 1, muffle tank body 101, high temperature refractory brick 102, high aluminum needle-punched fiber blanket 103, insulation mud 104, main aluminum fire baffle 105, furnace body shell 106, nano bottom plate 107, heating furnace wire 108, high-precision thermocouple 109, air cooling device 2, air cooling shell 201, hydrogen air outlet 202, fin tube heat exchanger 203, nitrogen air outlet 204, graphite roller 205, air cooling base 206, front water jacket Device 3, front water jacket shell 301, nitrogen outlet 2 302, graphite roller 2 303, waste discharge port 304, front water jacket base 305, outlet tension S roller device 4, S roller 1 401, S roller 2 402, outlet S roller base 403, belt 1 404, outlet S roller motor 405, two-roller deviation correction device 5, deviation correction roller 1 501, deviation correction roller 2 502, deviation correction roller base 503, deviation correction motor 504, direction roller 1 505, position sensor 506, winding device 6, winding gear box 601, hydraulic winding reel 602, winding motor 603, winding platform 604, winding base 605, centering motor 1 606, winding camera sensor 607, measuring roller device 7, direction roller 2 701, measuring roller 702, tension sensor 703, measuring roller base 704, entrance tension S roller device 8, S roller 3 801, S roller 4 802, entrance S roller base 803, belt 2 804 , entrance S-roller motor 805, gantry welding device 9, gantry bracket 901, opening platform 902, lead platform 903, buckle 904, upper row welding head 905, lower row welding head 906, high-precision camera sensor 907, unwinding device 10, unwinding gear box 1001, hydraulic unwinding reel 1002, unwinding motor 1003, unwinding platform 1004, unwinding base 1005, centering motor 2 1006, unwinding camera sensor 1007. DETAILED DESCRIPTION

[0052] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0053] like Figure 1A high-precision centered metal ultra-thin strip horizontal annealing furnace device is shown, which includes an unwinding device 10, a gantry welding device 9, an inlet tension S roller device 8, a measuring roller device 7, a front water jacket device 3, a heating furnace body 1, an air cooling device 2, an outlet tension S roller device 4, a two-roller deviation correction device 5 and a winding device 6 in sequence along the threading direction of the metal ultra-thin strip; wherein the left and right sides of the heating furnace body 1 are connected to the front water jacket device 3 and the air cooling device 2 by bolts, and the side of the air cooling device 2 away from the heating furnace body 1 is fixedly provided with the outlet tension S roller device 4, the two-roller deviation correction device 5 and the winding device 6 in sequence; the side of the front water jacket device 3 away from the heating furnace body 1 is fixedly provided with the measuring roller device 7, the inlet tension S roller device 8, the gantry welding device 9 and the unwinding device 10 in sequence.

[0054] Reference Figure 2-Figure 3 The heating furnace body 1 includes a muffle tank body 101, a high-temperature refractory brick 102, a high-aluminum needle-punched fiber blanket 103, a thermal insulation mud 104, a main aluminum fire baffle 105, a furnace body shell 106, a nano bottom plate 107, a heating furnace wire 108, and a high-precision thermocouple 109; the outside of the muffle tank body 101 is sequentially provided with thermal insulation materials such as high-temperature refractory bricks 102, high-aluminum needle-punched fiber blanket 103, thermal insulation mud 104, and a main aluminum fire baffle 105, which effectively slow down the heat loss in the furnace and ensure that the external working temperature of the annealing furnace is not affected; wherein, high-temperature refractory bricks 102 are fixedly arranged around the outside of the muffle tank body 101, high-aluminum needle-punched fiber blankets 103 are fixedly wrapped on the top and both sides of the high-temperature refractory bricks 102, thermal insulation mud 104 is fixedly coated on the periphery of the high-aluminum needle-punched fiber blanket 103, and a main aluminum fire baffle 105 is fixedly arranged on the bottom of the high-temperature refractory bricks 102.

[0055] A furnace shell 106 is fixedly arranged on the top and both sides of the entire furnace body, and a nano bottom plate 107 is fixedly arranged on the bottom of the entire furnace body, dividing the heating furnace body 1 into four temperature control zones, and each temperature control zone is staggered with heating furnace wires 108 at the top and bottom of the muffle tank 101 in sequence, and a high-precision thermocouple 109 is arranged at the initial and end positions of the muffle tank 101 in each temperature control zone to accurately measure the temperature at the initial and end positions of each temperature control zone. The heating furnace body is divided into four temperature control zones and temperature detection is performed through high-precision thermocouples 109 to ensure the temperature accuracy of each temperature control zone.

[0056] like Figure 5 As shown, the muffle tank body 101 adopts a longitudinal and transverse wave structure to reduce the high-temperature creep deformation of the tank body and increase the service life of the annealing furnace.

[0057] Reference Figure 2The air cooling device 2 includes an air cooling shell 201, a hydrogen outlet 202, a finned tube heat exchanger 203, a nitrogen outlet 204, a graphite roller 205, and an air cooling base 206; the top and bottom of one side of the air cooling shell 201 are provided with a hydrogen outlet 202, and the two hydrogen outlets 202 are fixedly provided with a finned tube heat exchanger 203 on one side close to the inner core of the air cooling device 2, and the top of the other side of the air cooling shell 201 is provided with a nitrogen outlet 204, and a pair of graphite rollers 205 are rotatably provided on the outlet and inlet sides of the air cooling shell 201, and the bottom of the outer side of the air cooling shell 201 is slidably connected with the air cooling base 206. The strip is cooled by a water cooling cycle of hydrogen passing through the finned tube heat exchanger 203, and the water cooling cycle operation is shown in the figure below. Figure 6 As shown, the cooling rate of the strip is effectively improved, and hydrogen enters the heating furnace body 1 to perform bright annealing on the strip in the furnace body; the bottom of the outer side 201 of the air-cooled shell and the air-cooled base 206 are connected by sliding, and can slide freely along the direction of the steel strip to avoid thermal expansion and contraction of the muffle tank 101. Due to the fixed air-cooling mechanism, the muffle tank is deformed, thereby reducing the service life of the annealing furnace.

[0058] Reference Figure 2 The front water jacket device 3 includes a front water jacket shell 301, a second nitrogen outlet 302, a second graphite roller 303, a waste discharge port 304, and a front water jacket base 305; a second nitrogen outlet 302 is provided at the top of one side of the interior of the front water jacket shell 301, a pair of second graphite rollers 303 are rotatably provided at the outlet side and the inlet side of the front water jacket shell 301, a waste discharge port 304 is fixedly provided at the top of the outer side of the front water jacket shell 301, and a front water jacket base 305 is slidably connected to the outer bottom of the front water jacket shell 301. The outer bottom of the front water jacket shell 301 and the front water jacket base 305 are slidably connected to prevent the deformation of the muffle tank 101 caused by thermal expansion and contraction, thereby improving the service life of the annealing furnace.

[0059] The nitrogen air outlet 1 204 of the air cooling device 2 and the nitrogen air outlet 2 302 of the front water jacket device 3 both form a nitrogen curtain vertically downward, which seals the heating furnace body 1, the front water jacket 3 and the air cooling device 2 to form a closed space to prevent hydrogen leakage.

[0060] Reference Figure 2 and Figure 4The outlet tension S roller device 4 includes an S roller 1 401, an S roller 2 402, an outlet S roller base 403, a belt 1 404, and an outlet S roller motor 405; the S roller 1 401 and the S roller 2 402 are fixedly arranged on the top of the outlet S roller base 403 through a bearing seat, and one side of the S roller 1 401 and the S roller 2 402 are connected to the output end of the outlet S roller motor 405 through the belt 1 404. The S roller 1 401 and the S roller 2 402 are both connected to a separate motor drive to provide tension precision control for the annealed strip, and play a micro-straightening role on the strip after annealing, thereby improving the strip shape quality.

[0061] Reference Figure 1-Figure 2 as well as Figure 4 The two-roller deflection correction device 5 includes a deflection correction roller 1 501, a deflection correction roller 2 502, a deflection correction roller base 503, a deflection correction motor 504, a direction roller 1 505, and a position sensor 506; a slide rail is arranged on the top of the deflection correction roller base 503, and the deflection correction roller 1 501 and the deflection correction roller 2 502 are slidably connected to the slide rail through a bearing seat. The positions of the deflection correction roller 1 501 and the deflection correction roller 2 502 in the slide rail are controlled by the deflection correction motor 504 to realize online deflection correction. The top of the deflection correction roller base 503 away from the heating furnace body 1 is fixedly provided with a direction roller 1 505 through a bearing seat, and the side of the deflection correction roller base 503 close to the heating furnace body 1 is fixedly provided with a position sensor 506. The strip EPC position deflection correction is realized by two-roller deflection correction and position sensor to ensure the position accuracy of the strip in the heating furnace body.

[0062] Reference Figure 2 and Figure 4 The winding device 6 includes a winding gear box 601, a hydraulic winding drum 602, a winding motor 603, a winding platform 604, a winding base 605, a centering motor 606, and a winding camera sensor 607; the output end and the input end of the winding gear box 601 are respectively fixedly provided with a hydraulic winding drum 602 and a winding motor 603, the winding gear box 601 is fixedly installed on the top of the winding platform 604, the winding platform 604 is slidably connected to the top of the winding base 605, and one side of the winding base 605 is fixedly connected with a centering motor 606, the centering motor 606 controls the movement of the winding platform 604 to realize the centering of the strip production line, and a winding camera sensor 607 is fixedly provided on the top of the winding platform 604 near the winding gear box 601.

[0063] Reference Figure 2 The measuring roller device 7 includes a second direction roller 701, a measuring roller 702, a tension sensor 703, and a measuring roller base 704; the second direction roller 701 is fixedly connected to one side of the top of the measuring roller base 704 through a bearing seat, and the measuring roller 702 is fixedly connected to the other side of the top of the measuring roller base 704 through the tension sensor 703.

[0064] Reference Figure 1-Figure 2 as well as Figure 4 The entrance tension S roller device 8 includes an S roller 3 801, an S roller 4 802, an entrance S roller base 803, a belt 2 804, and an entrance S roller motor 805; the S roller 3 801 and the S roller 4 802 are fixedly arranged on the top of the entrance S roller base 803 through a bearing seat, and one side of the S roller 3 801 and the S roller 4 802 is connected to the output end of the entrance S roller motor 805 through a belt 2 804. The S roller 3 801 and the S roller 4 802 are both connected to a separate motor drive. The entrance and exit S roller devices and the tension measuring roller cooperate with each other to ensure the precision control of the strip tension in the annealing furnace.

[0065] Reference Figure 1-Figure 2 The gantry welding device 9 includes a gantry bracket 901, a material cutting platform 902, a guide platform 903, a buckle 904, an upper welding head 905, a lower welding head 906, and a high-precision camera sensor 907; the material cutting platform 902 and the guide platform 903 are fixedly arranged on both sides of the gantry bracket 901; Figure 7 As shown, the tops of the cutting platform 902 and the lead tape platform 903 are both slidably connected with buckles 904, and the interior of the gantry bracket 901 is slidably connected with upper and lower welding heads 905 and 906. The upper and lower welding heads 905 and 906 can move up and down along the interior of the gantry bracket 901 to spot weld the annealed material and the lead tape. A high-precision camera sensor 907 is fixedly provided on one side of the top of the gantry bracket 901. The positions of the buckles 904 of the cutting platform 902 and the lead tape platform 903 can be controlled by the high-precision camera sensor 907, specifically: the buckle 904 on the top of the cutting platform 902 buckles the extremely thin metal strip, and the buckle 904 on the top of the lead tape platform 903 buckles the lead tape. After buckling, the positions of the metal ultra-thin belt and the leader belt are roughly aligned, and the edge positions of the metal ultra-thin belt and the leader belt are observed by the high-precision camera sensor 907. Finally, the system controls the buckle 904 to achieve complete centering of the metal ultra-thin belt and the leader belt, so that the annealed material and the leader belt are completely aligned during welding. This prevents the metal ultra-thin belt from being torn due to the tension and annealing due to the deviation of the belt position during welding, which affects the production efficiency.

[0066] The unwinding device 10 includes an unwinding gear box 1001, a hydraulic unwinding drum 1002, an unwinding motor 1003, an unwinding platform 1004, an unwinding base 1005, a second centering motor 1006, and an unwinding camera sensor 1007; the output end and the input end of the unwinding gear box 1001 are respectively fixedly provided with a hydraulic unwinding drum 1002 and an unwinding motor 1003, the unwinding gear box 1001 is fixedly installed on the top of the unwinding platform 1004, the unwinding platform 1004 is slidably connected to the top of the unwinding base 1005, and a second centering motor 1006 is fixedly connected to one side of the unwinding base 1005, and the second centering motor 1006 controls the movement of the unwinding platform 1004 to realize the centering of the strip production line, and an unwinding camera sensor 1007 is fixedly provided on the top of the unwinding platform 1004 near the unwinding gear box 1001. CPC centering of the strip is achieved by means of the camera sensors and centering motors of the unwinding device 10 and the winding device 6, thereby ensuring the position accuracy of the entire strip on the entire platform.

[0067] The surfaces of the rollers used in the outlet tension S roller device 4, the two-roller deviation correction device 5, the tension measuring roller device 7 and the inlet tension S roller device 8 are all coated with polyurethane to prevent the surface of the strip from being scratched.

[0068] The operation method of a high-precision centering metal ultra-thin strip horizontal annealing furnace device:

[0069] The rolled metal ultra-thin strip to be annealed is placed together with the reel on the hydraulic unwinding reel 1002, and the entire roll of metal ultra-thin strip is fixed by the hydraulic system. The movable end of the rolled metal ultra-thin strip is pulled out and placed on the unwinding platform 902, and the leader is placed on the leader platform 903. After roughly aligning the positions, the metal ultra-thin strip and the leader are clamped by the buckle 904, and then the high-precision camera sensor 907 on the top of the gantry welding device 9 automatically adjusts the positions of the buckles 904 on the unwinding platform 902 and the leader platform 903 under the control of the system, so that they are completely aligned. Figure 7 After the metal ultra-thin strip and the guide strip are completely aligned, the upper welding head 905 and the lower welding head 906 move along the fixed track of the gantry support 901 to weld the metal ultra-thin strip and the guide strip. After the welding is completed, the upper welding head 905 and the lower welding head 906 return to their original positions, release the buckle 904, and the guide strip pulls the metal ultra-thin strip according to the Figure 8The strip is annealed in a belt-threading manner, where the strip is first wrapped half a circle around the top of S roller three 801 and then wrapped half a circle around the top of S roller four 802, and then passes through the bottom of direction roller two 701 and the top of measuring roller 702 to enter the front water jacket device 3, passes through the two groups of graphite rollers two 303 at the entrance and exit of the front water jacket device 3 to enter the heating furnace body 1, passes through the heating furnace body 1 and enters the air cooling device 2, and passes through the two groups of graphite rollers one 205 at the entrance and exit of the air cooling device 2 in turn, and then passes through the top of S roller one 401 for half a circle and then passes through the top of S roller two 402 for half a circle, and then passes through the bottom of correcting roller one 501, the top of correcting roller two 502, and the top of direction roller one 505 in turn, and is finally connected to the hydraulic winding reel 602.

[0070] After the metal ultra-thin strip is threaded in the above threading method, annealing begins. The heating furnace wire 108 inside the heating furnace body 1 is turned on to make the temperature of the entire muffle tank body 101 reach the preset annealing temperature. The high-precision thermocouples 109 at the beginning and end of the four temperature control zones continuously monitor and control the temperature of the muffle tank body 101 to achieve the control of the annealing temperature. The nitrogen outlet 2 302 of the front water jacket device 3 and the nitrogen outlet 1 204 of the air cooling device 2 are turned on to achieve nitrogen curtain gas sealing. Then the hydrogen outlet 202 of the air cooling device 2 is opened. The hydrogen passes through the fin tube heat exchanger 203 of the water cooling cycle to quickly cool the strip and achieve air cooling of the strip. Under the action of the nitrogen curtain, the hydrogen enters the heating furnace body 1 to perform bright annealing on the metal ultra-thin strip. Finally, it enters the front water jacket device 3 and is discharged from the waste discharge port 304. The hydrogen is ignited and discharged at the waste discharge port 304.

[0071] Wait until the annealing temperature reaches the preset temperature and the hydrogen fills the entire heating furnace body 1. Turn on the unwinding motor 1003 and the winding motor 603 to realize the uniform movement of the metal ultra-thin strip tension until the annealing of the rolled metal ultra-thin strip is completed. In this process, when passing through the inlet tension S roller device 8 and the outlet tension S roller device 4, each S roller motor drives each S roller, and cooperates with the tension measuring roller 702 to further accurately adjust and control the tension of the metal ultra-thin strip annealed in the furnace. When the annealed metal ultra-thin strip passes through the outlet tension S roller device 4, the S roller driven by a separate motor has a micro-straightening effect after softening, which improves the plate quality of the metal ultra-thin strip. During the uniform movement of the metal ultra-thin strip, the position of the correction roller is dynamically adjusted by the position sensor 506 in the two-roller correction device 5 to link the correction motor 504 to realize the online EPC correction of the strip; at the same time, the camera sensor of the unwinding and winding device controls the centering motor to adjust the position of the unwinding and winding platform in real time to complete the CPC centering control of the metal ultra-thin strip in the process platform. The EPC and CPC dual correction systems work together to ensure the strip is centered throughout the annealing process, eliminating the risk of eccentric strip breakage and significantly improving production efficiency.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A high-precision centering metal ultra-thin strip horizontal annealing furnace device, characterized in that: Along the direction of the metal ultra-thin strip threading, it includes an unwinding device, a gantry welding device, an inlet tension S roller device, a tension measuring roller device, a front water jacket device, a heating furnace body, an air cooling device, an outlet tension S roller device, a two-roller deviation correction device and a winding device; The gantry welding device comprises a cutting platform, a guide platform and a high-precision camera sensor. The tops of the cutting platform and the guide platform are both slidably connected with buckles, and the position of the buckles can be controlled by the high-precision camera sensor. The front water jacket device comprises a front water jacket shell and a front water jacket base, and the outer bottom of the front water jacket shell and the front water jacket base are slidably connected; The air cooling device comprises an air cooling shell and an air cooling base, and the bottom of the outer side of the air cooling shell is slidably connected to the air cooling base.

2. A high-precision centering metal ultra-thin strip horizontal annealing furnace device as claimed in claim 1, characterized in that: The heating furnace body comprises a muffle tank body, high-temperature refractory bricks, a high-aluminum needle-punched fiber blanket, thermal insulation mud, a main aluminum fire baffle, a furnace body shell, a nano bottom plate, a heating furnace wire, and a high-precision thermocouple; the outside of the muffle tank body is sequentially provided with high-temperature refractory bricks, a high-aluminum needle-punched fiber blanket, thermal insulation mud, and a main aluminum fire baffle insulation material, wherein high-temperature refractory bricks are fixedly provided around the outside of the muffle tank body, high-aluminum needle-punched fiber blankets are fixedly wrapped on the top and both sides of the high-temperature refractory bricks, the outer periphery of the high-aluminum needle-punched fiber blanket is coated with thermal insulation mud, and the main aluminum fire baffle is fixedly provided at the bottom of the high-temperature refractory bricks; the top and both sides of the heating furnace body are fixedly provided with a furnace body shell, the bottom of the heating furnace body is fixedly provided with a nano bottom plate, and the heating furnace body is divided into four temperature control zones, each temperature control zone is sequentially provided with heating furnace wires staggered at the top and bottom of the muffle tank body, and a high-precision thermocouple for accurately measuring the temperature at the initial and end positions is provided in the muffle tank body of each temperature control zone.

3. A high-precision centering metal ultra-thin strip horizontal annealing furnace device as claimed in claim 1, characterized in that: The unwinding device comprises an unwinding gear box, a hydraulic unwinding drum, an unwinding motor, an unwinding platform, an unwinding base, a second centering motor, and an unwinding camera sensor; the output end and the input end of the unwinding gear box are respectively fixedly provided with a hydraulic unwinding drum and an unwinding motor, the unwinding gear box is fixedly installed on the top of the unwinding platform, the unwinding platform is slidably connected to the top of the unwinding base, one side of the unwinding base is fixedly connected with the second centering motor for controlling the movement of the unwinding platform, and an unwinding camera sensor is fixedly provided on the top of the unwinding platform near the unwinding gear box.

4. A high-precision centering metal ultra-thin strip horizontal annealing furnace device as claimed in claim 1, characterized in that: The gantry welding device also includes a gantry bracket, an upper row of welding heads and a lower row of welding heads. The cutting platform and the guide platform are fixedly arranged on both sides of the outside of the gantry bracket, and the upper row of welding heads and the lower row of welding heads are slidably connected inside the gantry bracket. The high-precision camera sensor is fixedly arranged on one side of the top of the gantry bracket.

5. A high-precision centering metal ultra-thin strip horizontal annealing furnace device as claimed in claim 1, characterized in that: The front water jacket device also includes two nitrogen air outlets, two graphite rollers and a waste discharge port; a second nitrogen air outlet is opened at the top of one side of the inner part of the front water jacket shell, a pair of two graphite rollers are rotatably arranged on the outlet side and the inlet side of the front water jacket shell, and a waste discharge port is opened at the top of the outer side of the front water jacket shell; The air cooling device further comprises a hydrogen outlet, a finned tube heat exchanger, a nitrogen outlet and a graphite roller; the top and bottom of one side of the air cooling shell are both provided with a hydrogen outlet, and the two hydrogen outlets are fixedly provided with a finned tube heat exchanger on one side close to the inner cavity core of the air cooling device, a nitrogen outlet is provided on the top of the other side of the air cooling shell, and a pair of graphite rollers are rotatably provided on the outlet and inlet sides of the air cooling shell; The nitrogen air outlet 1 of the air cooling device and the nitrogen air outlet 2 of the front water jacket device both form a nitrogen curtain vertically downward.

6. A high-precision centering metal ultra-thin strip horizontal annealing furnace device as claimed in claim 1, characterized in that: The entrance tension S roller device comprises an S roller three, an S roller four, an entrance S roller base, a belt two, and an entrance S roller motor; the S roller three and the S roller four are fixedly arranged on the top of the entrance S roller base through a bearing seat, and one side of the S roller three and the S roller four are connected to the output end of the entrance S roller motor through the belt two; The outlet tension S roller device comprises an S roller one, an S roller two, an outlet S roller base, a belt one, and an outlet S roller motor; the S roller one and the S roller two are fixedly arranged on the top of the outlet S roller base through a bearing seat, and one side of the S roller one and the S roller two are connected to the output end of the outlet S roller motor through a belt one.

7. A high-precision centering metal ultra-thin strip horizontal annealing furnace device as claimed in claim 6, characterized in that: The two-roller deviation correction device includes a deviation correction roller 1, a deviation correction roller 2, a deviation correction roller base, a deviation correction motor, a direction roller 1, and a position sensor; a slide rail is arranged on the top of the deviation correction roller base, and the deviation correction roller 1 and the deviation correction roller 2 are both slidably connected to the slide rail through a bearing seat, and the positions of the deviation correction roller 1 and the deviation correction roller 2 in the slide rail are controlled by the deviation correction motor to realize online deviation correction, and the direction roller 1 is fixedly arranged on the top of the deviation correction roller base away from the heating furnace body through the bearing seat, and the position sensor is fixedly arranged on the side of the deviation correction roller base close to the heating furnace body.

8. A high-precision centering metal ultra-thin strip horizontal annealing furnace device as claimed in claim 1, characterized in that: The winding device includes a winding gear box, a hydraulic winding drum, a winding motor, a winding platform, a winding base, a centering motor 1, and a winding camera sensor; the output end and input end of the winding gear box are respectively fixedly provided with a hydraulic winding drum and a winding motor, the winding gear box is fixedly installed on the top of the winding platform, the winding platform is slidably connected to the top of the winding base, one side of the winding base is fixedly connected with a center motor 1 for controlling the movement of the winding platform, and a winding camera sensor is fixedly provided on the top of the winding platform near the winding gear box.

9. A high-precision centering metal ultra-thin strip horizontal annealing furnace device as claimed in claim 7, characterized in that: The measuring roller device comprises a second direction roller, a measuring roller, a tension sensor, and a measuring roller base; the second direction roller is fixedly connected to one side of the top of the measuring roller base through a bearing seat, and the measuring roller is fixedly connected to the other side of the top of the measuring roller base through the tension sensor; The surfaces of the rollers used in the outlet tension S roller device, the two-roller deviation correction device, the tension measuring roller device and the inlet tension S roller device are all coated with polyurethane.

10. An operating method for a high-precision centering metal ultra-thin strip horizontal annealing furnace device, characterized in that: The following steps are involved: S1. Threading of extremely thin metal belt: specifically: S11. Place the rolled metal ultra-thin strip to be annealed together with the reel on the hydraulic unwinding reel, pull out the movable end of the rolled metal ultra-thin strip and place it on the unwinding platform, place the leader on the leader platform, clamp the metal ultra-thin strip and the leader respectively with the buckle, roughly align the positions, and then use the high-precision camera sensor on the top of the gantry welding device to achieve complete centering under the control of the system; S12, after waiting for the metal ultra-thin strip and the lead strip to be completely aligned, the upper row welding head and the lower row welding head move along the fixed track of the gantry support to weld the metal ultra-thin strip and the lead strip, and after the welding is completed, release the buckle, and the upper row welding head and the lower row welding head return to the initial position; S13, the strip first passes through the top of S roller 3 and is wrapped half a circle, then passes through the top of S roller 4 and is wrapped half a circle, then passes through the bottom of direction roller 2 and the top of measuring roller, and then enters the front water jacket device, passes through the two groups of graphite rollers 2 at the entrance and exit of the front water jacket device, and enters the heating furnace body; S14, after passing through the heating furnace body, the strip enters the air cooling device, passes through the two groups of graphite rollers 1 at the inlet and outlet of the air cooling device in turn, passes through the top of S roller 1 for half a circle, then passes through the top of S roller 2 for half a circle, passes through the bottom of deviation correction roller 1, the top of deviation correction roller 2, the top of direction roller 1 in turn, and is finally connected to the hydraulic winding reel; S2, annealing of the metal ultra-thin strip: annealing the metal ultra-thin strip after the stripping in step S1, specifically: S21, turning on the heating wire inside the heating furnace body, and continuously monitoring and controlling the temperature of the muffle tank body through high-precision thermocouples at the beginning and end of the four temperature control zones; S22, opening the nitrogen air outlet 2 of the front water jacket device and the nitrogen air outlet 1 of the air cooling device, and then opening the hydrogen air outlet of the air cooling device, so that the hydrogen passes through the fin-tube heat exchanger of the water cooling cycle to quickly cool the strip; S23, enters the front water jacket device and is discharged from the waste discharge port, where the hydrogen is ignited and discharged.

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