A horizontal continuous annealing furnace for annealing Invar alloy foil

Abstract

The present application relates to the field of annealing furnaces, and discloses a horizontal continuous annealing furnace for annealing Invar alloy foil, comprising a bottom plate and a preheating section, a heating section, a slow cooling section and a fast cooling section fixed on the bottom plate, wherein the preheating section, the heating section, the slow cooling section and the fast cooling section are arranged in sequence from left to right, and material ports are provided on both side walls of the preheating section, the heating section, the slow cooling section and the fast cooling section, and sealing doors are rotatably installed on the left outer wall of the preheating section and the right outer wall of the fast cooling section, and a plurality of supporting furnace rollers are rotatably installed in the preheating section, the heating section, the slow cooling section and the fast cooling section. The present application has the following advantages and effects: it can realize an integrated continuous annealing operation of preheating, high-temperature heating, slow cooling and fast cooling of Invar alloy foil in sequence, and can obtain annealed Invar alloy foil with uniform structure and performance, good plate shape and surface quality, and improve the production quality of Invar alloy foil.

Description

Technical Field

[0001] The present application relates to the technical field of annealing furnaces, and in particular to a horizontal continuous annealing furnace for annealing Invar alloy foil. Background Art

[0002] Annealing refers to the process of heating the strengthened metal material to a certain temperature, keeping it warm for a certain period of time, and then slowly cooling it to room temperature to change its organizational structure, so as to achieve the purpose of softening, stress relief, and improving plasticity and ductility. Annealing furnace is an important equipment in metal material processing, which is used to change the mechanical properties and organizational structure of metal materials. Invar alloy foil is a key raw material for high-precision metal mask plates. It has good conductivity and is widely used in electronic products. At present, horizontal annealing furnaces are usually used for processing and manufacturing Invar alloy foil.

[0003] In the related art, when a horizontal annealing furnace is used to anneal the Invar alloy foil, it is not possible to achieve an integrated continuous annealing operation of preheating, high-temperature heating, slow cooling and rapid cooling of the Invar alloy foil. The operation process is relatively cumbersome and troublesome, and the annealing quality of the Invar alloy foil is poor, which reduces the production quality of the Invar alloy foil. Therefore, we propose a horizontal continuous annealing furnace for annealing Invar alloy foil to solve the above problems. Summary of the invention

[0004] The purpose of the present application is to provide a horizontal continuous annealing furnace for annealing Invar alloy foil, which has the integrated continuous annealing operation of preheating, high-temperature heating, slow cooling and rapid cooling of the Invar alloy foil in sequence, and can obtain annealed Invar alloy foil with uniform structure and performance, good plate shape and surface quality, thereby improving the production quality of the Invar alloy foil.

[0005] The above technical purpose of the present application is achieved through the following technical solutions: a horizontal continuous annealing furnace for annealing Invar alloy foil, comprising a bottom plate and a preheating section, a heating section, a slow cooling section and a fast cooling section fixed on the bottom plate, wherein the preheating section, the heating section, the slow cooling section and the fast cooling section are arranged in sequence from left to right, and material ports are provided on both side walls of the preheating section, the heating section, the slow cooling section and the fast cooling section, and sealing doors are rotatably installed on the left outer wall of the preheating section and the right outer wall of the fast cooling section, and a plurality of supporting furnace rollers are rotatably installed in the preheating section, the heating section, the slow cooling section and the fast cooling section, and the plurality of supporting furnace rollers are equidistantly arranged. The preheating section is provided with a foil hanging rack for fixing and hanging the Invar alloy foil, the heating section is provided with a heating mechanism for heating the Invar alloy foil, the slow cooling section is provided with a slow cooling mechanism for slowly cooling the Invar alloy foil, and the fast cooling section is provided with a fast cooling mechanism for quickly cooling the Invar alloy foil. Electric hydraulic cylinders are fixedly installed on the top of the preheating section, the heating section and the slow cooling section, and the conveying shaft ends of the three electric hydraulic cylinders extend into the preheating section, the heating section and the slow cooling section respectively, and the output shaft ends of the three electric hydraulic cylinders are provided with a blocking mechanism for blocking the material opening.

[0006] The present application is further configured as follows: the foil hanging rack includes a pallet, the pallet is placed on a plurality of supporting furnace rollers in the preheating section, a plurality of T-shaped rods are fixedly mounted on the top of the pallet, the plurality of T-shaped rods are evenly distributed, foil clamping assemblies are fixedly mounted on both ends of the tops of the plurality of T-shaped rods, and Invar alloy foils are clamped on the plurality of clamping assemblies.

[0007] The present application is further configured as follows: the clamping assembly includes a U-shaped plate, a screw, a rotary handle, an axle seat, a clamping plate and a guide rod, the U-shaped plate is fixedly mounted on the top end of the T-shaped rod, the screw thread penetrates through a side wall of the U-shaped plate away from the T-shaped rod, the rotary handle is fixedly mounted on an end of the screw located outside the U-shaped plate, the axle seat is rotatably mounted on an end of the screw located inside the U-shaped plate, the clamping plate is fixedly mounted on a side of the axle seat away from the screw, the top of the Invar alloy foil extends into the U-shaped plate, one side of the Invar alloy foil conflicts with an inner wall of one side of the U-shaped plate, and the other side of the Invar alloy foil conflicts with the clamping plate, the guide rod is fixedly mounted on one side of the clamping plate and is located above the screw, and the end of the guide rod away from the clamping plate slides through a side wall of the U-shaped plate away from the T-shaped rod.

[0008] The present application is further configured as follows: the heating mechanism includes a heating hood, multiple electric heating plates, multiple first air outlet heads, a first circulation fan, a first intake pipe and a first exhaust pipe; the heating hood is a hollow structure; the heating hood is fixedly mounted on the top inner wall of the heating section; the multiple electric heating plates are fixedly mounted on the top inner wall of the heating hood and are evenly distributed; the multiple first air outlet heads are fixedly mounted on the bottom of the heating hood and are evenly distributed; the first circulation fan is fixedly mounted on the top of the heating section; one end of the first intake pipe is fixedly connected to the intake end of the first circulation fan; the other end of the first intake pipe passes through the rear side wall of the heating section; one end of the first exhaust pipe is fixedly connected to the discharge end of the first circulation fan; the other end of the first exhaust pipe extends into the heating hood.

[0009] The present application is further configured as follows: the slow cooling mechanism includes an air distribution hood, a plurality of second air outlet heads, a second circulation fan, a water tank, a second air intake pipe and a second exhaust pipe; the air distribution hood is fixedly mounted on the top inner wall of the slow cooling section; the air distribution hood is a hollow structure; the plurality of second air outlet heads are fixedly mounted on the bottom of the air distribution hood and are evenly spaced; the second circulation fan and the water tank are fixedly mounted on the top of the slow cooling section; the second circulation fan is located in front of the water tank; one end of the second air intake pipe is fixedly connected to the suction end of the second circulation fan; the other end of the second air intake pipe passes through the water tank and the rear side wall of the slow cooling section in sequence; one end of the second exhaust pipe is fixedly connected to the discharge end of the second circulation fan; the other end of the second exhaust pipe extends into the air distribution hood.

[0010] The present application is further configured as follows: a water inlet pipe is fixedly installed on the left wall of the water tank, a water outlet pipe is fixedly installed on the right wall of the water tank, and solenoid valves are fixedly installed on both the water inlet pipe and the water outlet pipe.

[0011] The present application is further configured as follows: the quick cooling mechanism includes an air cooler, a third air intake pipe and a third exhaust pipe, the air cooler is fixedly installed on the top of the quick cooling section, one end of the third air intake pipe is fixedly connected to the suction end of the air cooler, the other end of the third air intake pipe extends into the quick cooling section, one end of the third exhaust pipe is fixedly connected to the discharge end of the air cooler, and the other end of the third exhaust pipe extends into the quick cooling section.

[0012] The present application is further configured as follows: the blocking mechanism includes a connecting plate and a baffle, the connecting plate is fixedly mounted on the output shaft end of the electric hydraulic cylinder, the baffle is fixedly mounted on one side of the connecting plate, and the longitudinal section dimension of the connecting plate is larger than the longitudinal section dimension of the material opening.

[0013] The present application is further configured as follows: a limit bar located below the corresponding material port is fixedly installed on the right inner wall of the preheating section, the heating section and the slow cooling section, and the top of the baffle is in conflict with the corresponding limit bar.

[0014] The present application is further configured as follows: temperature sensors are fixedly installed on the front side walls of the preheating section, heating section, slow cooling section and fast cooling section, and detection heads of the four temperature sensors extend into the preheating section, heating section, slow cooling section and fast cooling section respectively.

[0015] The present application includes at least one of the following beneficial technical effects:

[0016] 1. The present application utilizes a foil hanging rack composed of a support plate, multiple T-shaped rods, multiple U-shaped plates, multiple screw rods, multiple rotary handles, multiple shaft seats, multiple clamping plates and multiple guide rods to clamp and fix multiple Invar alloy foils above the support plate, so that the multiple Invar alloy foils are in a suspended hanging state.

[0017] 2. In the present application, the foil hanging rack and the multiple Invar alloy foils that have been clamped and fixed are placed on the supporting furnace rollers in the preheating section, and the electric hydraulic cylinder at the top of the preheating section is controlled to shrink and reset, so that the connecting plate and the baffle can be controlled to move vertically upward to a high position. At this time, the preheating section and the heating section are internally connected, and then the multiple electric heating plates and the first circulation fan are controlled to be turned on to control the circulation of air in the heating section, and the air can be heated by the multiple electric heating plates. At this time, since the preheating section and the heating section are internally connected, heat will gradually enter the preheating section. When the temperature inside the preheating section reaches the temperature for preheating the Invar alloy foil, the electric hydraulic cylinder at the top of the preheating section is controlled to extend and run, so that the connecting plate and the baffle can be controlled to move vertically downward until the bottom of the baffle conflicts with the limit strip. At this time, the preheating section and the heating section are no longer internally connected, and the multiple Invar alloy foils can be enclosed in the preheating section for preheating treatment.

[0018] 3. The present application utilizes the rotation of multiple supporting furnace rollers to transport the foil hanging rack and the multiple clamped Invar alloy foils horizontally and linearly to the inside of the heating section, keeps the multiple electric heating plates and the first circulating fan running, and then controls the electric hydraulic cylinder at the top of the preheating section to extend and run until the baffle is pressed against the limit bar, so that the multiple Invar alloy foils can be enclosed in the heating section for high-temperature heating treatment. In the process of heating the multiple Invar alloy foils, the hot air discharged from the multiple first air outlets flows from top to bottom, so that the multiple Invar alloy foils can be kept in a suspended state.

[0019] 4. The present application utilizes the rotation of multiple supporting furnace rollers to transport the foil hanging rack and the multiple clamped Invar alloy foils horizontally and linearly to the slow cooling section, and then controls the electric hydraulic cylinder at the top of the heating section to extend and operate until the baffle is pressed against the limit bar, so that the multiple Invar alloy foils can be enclosed in the slow cooling section, and the air in the slow cooling section can be circulated by controlling the operation of the second circulation fan, and the clean water can be allowed to flow into the water tank and then out of the water outlet pipe by opening the two solenoid valves. When the air flows in the second intake pipe, part of the heat in the air will be transferred to the clean water through the pipe wall of the second intake pipe, so that the air temperature in the slow cooling section can be slowly reduced, so that the multiple Invar alloy foils can be slowly cooled down. In the process of slowly cooling down the multiple Invar alloy foils, the hot air discharged from the multiple second air outlets flows from top to bottom, so that the multiple Invar alloy foils can be kept in a suspended state.

[0020] 5. The present application utilizes the rotation of multiple supporting furnace rollers to transport the foil hanging rack and the multiple clamped Invar alloy foils horizontally and linearly to the rapid cooling section, and then controls the electric hydraulic cylinder at the top of the slow cooling section to extend and operate until the baffle is pressed against the limit bar, so that the multiple Invar alloy foils can be enclosed in the rapid cooling section. By controlling the operation of the cooling fan, the air circulation in the rapid cooling section can be controlled, and the internal space of the rapid cooling section can be quickly cooled, so that the multiple Invar alloy foils can be quickly cooled. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of this embodiment.

[0023] Figure 2 It is a schematic diagram of the main cross-sectional structure of this embodiment.

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the foil hanging rack.

[0025] Figure 4 It is a schematic diagram of the main cross-sectional structure of the foil mounting rack.

[0026] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of part A.

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the heating hood.

[0028] Figure 7 It is a schematic diagram of the partial three-dimensional structure of the heating mechanism.

[0029] Figure 8 It is a schematic diagram of the partial three-dimensional structure of the slow cooling mechanism.

[0030] In the figure, 1, bottom plate; 2, preheating section; 3, heating section; 4, slow cooling section; 5, fast cooling section; 6, material inlet; 7, sealing door; 8, supporting furnace roller; 9, foil hanging rack; 91, supporting plate; 92, T-shaped rod; 93, U-shaped plate; 94, screw rod; 95, rotary handle; 96, shaft seat; 97, clamping plate; 98, guide rod; 10, Invar alloy foil; 11, heating cover; 12, electric heating plate; 13, first air outlet; 14, first circulation fan ; 15. First air intake pipe; 16. First air exhaust pipe; 17. Air hood; 18. Second air outlet head; 19. Second circulation fan; 20. Water tank; 21. Second air intake pipe; 22. Second air exhaust pipe; 23. Water inlet pipe; 24. Water outlet pipe; 25. Solenoid valve; 26. Air cooler; 27. Third air intake pipe; 28. Third air exhaust pipe; 29. ​​Electric hydraulic cylinder; 30. Connecting plate; 31. Baffle; 32. Limit strip; 33. Temperature sensor. DETAILED DESCRIPTION

[0031] The technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0032] See also Figure 1-8 The present application provides a horizontal continuous annealing furnace for annealing Invar alloy foil, comprising a bottom plate 1 and a preheating section 2, a heating section 3, a slow cooling section 4 and a fast cooling section 5 fixed on the bottom plate 1, wherein the preheating section 2, the heating section 3, the slow cooling section 4 and the fast cooling section 5 are arranged from left to right in sequence, and the preheating section 2, the heating section 3, the slow cooling section 4 and the fast cooling section 5 are connected end to end in sequence, wherein:

[0033] Material openings 6 are arranged on both side walls of the preheating section 2, the heating section 3, the slow cooling section 4 and the fast cooling section 5. Sealing doors 7 are rotatably installed on the left outer wall of the preheating section 2 and the right outer wall of the fast cooling section 5. The two sets of sealing doors 7 can be used to seal the material opening on the left wall of the preheating section 2 and the material opening on the right wall of the fast cooling section 5 respectively. A plurality of supporting furnace rollers 8 are rotatably installed in the preheating section 2, the heating section 3, the slow cooling section 4 and the fast cooling section 5. The plurality of supporting furnace rollers 8 are arranged at equal intervals. By utilizing the synchronous and unidirectional rotation of the plurality of supporting furnace rollers 8, the foil hanging rack 9 can be horizontally and linearly transported, so that the foil hanging rack 9 can enter the preheating section 2, the heating section 3, the slow cooling section 4 and the fast cooling section 5 in turn. It should be noted that the synchronous and unidirectional rotation of the plurality of supporting furnace rollers 8 is driven by a motor. The power source is realized by chain drive or belt drive, which belongs to the mature technology in this field, so it is not described in detail in this article. The preheating section 2 is provided with a foil hanging rack 9 for fixing and hanging the Invar alloy foil, the heating section 3 is provided with a heating mechanism for heating the Invar alloy foil, the slow cooling section 4 is provided with a slow cooling mechanism for slowly cooling the Invar alloy foil, and the fast cooling section 5 is provided with a fast cooling mechanism for quickly cooling the Invar alloy foil. The tops of the preheating section 2, the heating section 3 and the slow cooling section 4 are fixedly installed with electric hydraulic cylinders 29, and the conveying shaft ends of the three electric hydraulic cylinders 29 extend into the preheating section 2, the heating section 3 and the slow cooling section 4 respectively, and the output shaft ends of the three electric hydraulic cylinders 29 are provided with a blocking mechanism for blocking the material port 6.

[0034] In this embodiment, the foil hanging rack includes a support plate 91, which is placed on a plurality of supporting furnace rollers 8 in the preheating section 2. A plurality of T-shaped rods 92 are fixedly installed on the top of the support plate 91, and the plurality of T-shaped rods 92 are evenly distributed. Foil clamping assemblies are fixedly installed at both ends of the tops of the plurality of T-shaped rods 92, and the plurality of clamping assemblies are clamped with Invar alloy foils 10. By using the plurality of clamping assemblies together, the plurality of Invar alloy foils 10 can be clamped and fixed above the support plate 91, so that the plurality of Invar alloy foils 10 are in a suspended hanging state. The clamping assembly includes a U-shaped plate 93, a screw rod 94, a rotary handle 95, an axle seat 96, a clamping plate 97 and a guide rod 98. The U-shaped plate 93 is fixedly installed on one end of the top of the T-shaped rod 92, the screw rod 94 is threadedly penetrated on a side wall of the U-shaped plate 93 away from the T-shaped rod 92, and the rotary handle 95 is fixedly installed on the screw rod 94 at the U-shaped plate 93, the shaft seat 96 is rotatably mounted on the end of the screw rod 94 located in the U-shaped plate 93, the clamping plate 97 is fixedly mounted on the side of the shaft seat 96 away from the screw rod 94, the top of the Invar alloy foil extends into the U-shaped plate 93, one side of the Invar alloy foil 10 contacts the inner wall of one side of the U-shaped plate 93, and the other side of the Invar alloy foil 10 contacts the clamping plate 97, the guide rod 98 is fixedly mounted on one side of the clamping plate 97 and is located above the screw rod 94, the end of the guide rod 98 away from the clamping plate 97 slides through the side wall of the U-shaped plate 93 away from the T-shaped rod 92, the screw rod 94 is conveniently rotated by the rotary handle 95, and then the position of the shaft seat 96 and the clamping plate 97 can be adjusted under the guiding action of the guide rod 98, so that the shaft seat 96 and the clamping plate 97 can maintain horizontal linear movement, and the top of the Invar alloy foil 10 can be clamped and fixed on the inner wall of the U-shaped plate 93 by the clamping plate 97.

[0035] In this embodiment, the heating mechanism includes a heating hood 11, a plurality of electric heating plates 12, a plurality of first air outlet heads 13, a first circulation fan 14, a first air intake pipe 15 and a first exhaust pipe 16. The heating hood 11 is a hollow structure. The heating hood 11 is fixedly mounted on the top inner wall of the heating section 3. The plurality of electric heating plates 12 are fixedly mounted on the top inner wall of the heating hood 11 and are evenly distributed. The plurality of first air outlet heads 13 are fixedly mounted on the bottom of the heating hood 11 and are evenly distributed. The first circulation fan 14 is fixedly mounted on the top of the heating section 3. One end of the first air intake pipe 15 is fixedly connected to the suction end of the first circulation fan 14. The first suction pipe 15 is fixedly connected to the suction end of the first circulation fan 14. The other end of the air pipe 15 passes through the rear wall of the heating section 3, one end of the first exhaust pipe 16 is fixedly connected to the exhaust end of the first circulation fan 14, and the other end of the first exhaust pipe 16 extends into the heating hood 11. The operation of the first circulation fan 14 can pump the air in the heating section 3, so that the air in the heating section 3 can circulate from top to bottom. The air in the heating hood 11 can be heated by using multiple electric heating plates 12, that is, the circulating air can be heated during the circulation of the air in the heating section 3 from top to bottom, so as to achieve the purpose of quickly heating the Invar alloy foil 10.

[0036] In the present embodiment, the slow cooling mechanism includes an air distribution hood 17, a plurality of second air outlet heads 18, a second circulation fan 19, a water tank 20, a second air intake pipe 21 and a second exhaust pipe 22. The air distribution hood 17 is fixedly mounted on the top inner wall of the slow cooling section 4. The air distribution hood 17 is a hollow structure. The plurality of second air outlet heads 18 are fixedly mounted on the bottom of the air distribution hood 17 and are evenly spaced. The second circulation fan 19 and the water tank 20 are fixedly mounted on the top of the slow cooling section 4. The second circulation fan 19 is located in front of the water tank 20. One end of the second air intake pipe 21 is fixedly connected to the suction end of the second circulation fan 19. The other end of the second air intake pipe 21 passes through the water tank 20 and the rear side wall of the slow cooling section 4 in sequence. One end of the second exhaust pipe 22 is fixedly connected to the discharge end of the second circulation fan 19. The other end of the second exhaust pipe 22 extends into the air distribution hood 17. By operating the second circulation fan 19, the air in the slow cooling section 4 can be pumped, thereby achieving the air inside the slow cooling section 4. It circulates from top to bottom, and the water tank 20 can be used to hold clean water. During the flow of air in the second intake pipe 21, part of the heat in the air can be transferred to the clean water through the pipe wall of the second intake pipe 21, so that the air temperature in the slow cooling section 4 can be slowly reduced, thereby achieving the purpose of slowly cooling the Invar alloy foil 10. It should be noted that the second intake pipe 21 is made of a metal material with good thermal conductivity, and a water inlet pipe 23 is fixedly installed on the left side wall of the water tank 20, and a water outlet pipe 24 is fixedly installed on the right side wall of the water tank 20. Solenoid valves 25 are fixedly installed on the water inlet pipe 23 and the water outlet pipe 24. The water inlet pipe 23 is used to transport clean water into the water tank 20, and the water outlet pipe 24 is used to transport the clean water in the water tank 20 away. The two solenoid valves 25 can be used to control the on and off of the water inlet pipe 23 and the water outlet pipe 24 respectively. It should be noted that the water inlet pipe 23 is connected to an external clean water pipeline, and the water outlet pipe 24 is connected to an external recovery pipeline.

[0037] In this embodiment, the rapid cooling mechanism includes an air cooler 26, a third air intake pipe 27 and a third air exhaust pipe 28. The air cooler 26 is fixedly installed on the top of the rapid cooling section 5. One end of the third air intake pipe 27 is fixedly connected to the suction end of the air cooler 26, and the other end of the third air intake pipe 27 extends into the rapid cooling section 5. One end of the third air exhaust pipe 28 is fixedly connected to the discharge end of the air cooler 26, and the other end of the third air exhaust pipe 28 extends into the rapid cooling section 5. The cold air generated by the air cooler 26 can be used to quickly cool the internal space of the rapid cooling section 5, thereby achieving the purpose of quickly cooling the Invar alloy foil 10.

[0038] In this embodiment, the blocking mechanism includes a connecting plate 30 and a baffle 31. The connecting plate 30 is fixedly mounted on the output shaft end of the electric hydraulic cylinder 29, and the baffle 31 is fixedly mounted on one side of the connecting plate 30. The longitudinal cross-sectional dimension of the connecting plate 30 is larger than the longitudinal cross-sectional dimension of the material opening 6. The electric hydraulic cylinder 29 is used to control the lifting and lowering of the connecting plate 30 and the baffle 31. The baffle 31 can be used to block the corresponding material opening 6. The right inner walls of the preheating section 2, the heating section 3 and the slow cooling section 4 are all fixedly mounted with a limit bar 32 located below the corresponding material opening 6. The top of the baffle 31 is in conflict with the corresponding limit bar 32. The limit bar 32 can be used to limit the descending stroke of the baffle 31, so that the baffle 31 can fully and effectively block the material opening 6.

[0039] In the present embodiment, temperature sensors 33 are fixedly mounted on the front side walls of the preheating section 2, the heating section 3, the slow cooling section 4 and the fast cooling section 5. The detection heads of the four temperature sensors 33 extend into the preheating section 2, the heating section 3, the slow cooling section 4 and the fast cooling section 5 respectively. The four temperature sensors 33 can be used to monitor the temperatures in the preheating section 2, the heating section 3, the slow cooling section 4 and the fast cooling section 5 respectively. It should be noted that the temperature sensors 33 are electrically connected to an external temperature display, and the temperature values ​​monitored by the four temperature sensors 33 can be displayed on the external temperature display for the convenience of the staff to view and know.

[0040] Through the above structure, the horizontal continuous annealing furnace for annealing the Invar alloy foil provided by the present application can realize the integrated continuous annealing operation of preheating, high-temperature heating, slow cooling and rapid cooling of the Invar alloy foil in sequence when in use, and can obtain the annealed Invar alloy foil with uniform structure and performance, good plate shape and surface quality, thereby improving the production quality of the Invar alloy foil. In the specific operation, first take an Invar alloy foil 10 and insert its top end into one of the U-shaped plates 93, and rotate the handle 95 clockwise, so that the handle 95 drives the screw rod 94 to rotate clockwise. Under the guidance of the guide rod 98, the screw rod 94 drives the shaft seat 96 and the clamping plate 97 to move horizontally and linearly gradually close to the Invar alloy foil 10, so that the Invar alloy foil 10 can be firmly clamped and fixed in this U-shaped plate 93. According to the above operation steps, other multiple Invar alloy foils 10 can be clamped and fixed in other U-shaped plates 93 respectively;

[0041] After the clamping operation of a large number of Invar alloy foils 10 is completed, the sealing door 7 on the left side of the preheating section 2 is opened, and then the foil hanging rack 9 and the clamped and fixed multiple Invar alloy foils 10 are placed on the supporting furnace roller 8 in the preheating section 2, and then the sealing door 7 is closed, and then the electric hydraulic cylinder 29 at the top of the preheating section 2 is controlled to shrink and reset, so that the connecting plate 30 and the baffle 31 can be controlled to move vertically upward to a high position. At this time, the baffle 31 no longer blocks the material port 6 on the right side wall of the preheating section 2, and the preheating section 2 and the heating section 3 are internally connected. Then, the four temperature sensors 33, the multiple electric heating plates 12 and the first circulation fan 14 are controlled to operate. The first circulation fan 14 can be used to make the air in the heating section 3 pass through the first suction pipe 15, the first circulation fan 14 and the first exhaust pipe 16 in sequence to enter the heating cover 11 In the heating hood 11, multiple electric heating plates 12 can be used to heat the air entering the heating hood 11, so that the hot air is ejected downward from the multiple first air outlets 13, and then under the continuous operation of the first circulation fan 14, the air inside the heating section 3 can be circulated and heated. At this time, since the preheating section 2 and the heating section 3 are connected, the heat will gradually enter the preheating section 2. When the temperature inside the preheating section 2 reaches the temperature for preheating the Invar alloy foil 10, the electric hydraulic cylinder 29 at the top of the preheating section 2 is controlled to extend and run, so that the connecting plate 30 and the baffle 31 can be controlled to move vertically downward until the bottom of the baffle 31 conflicts with the limit strip 32. At this time, the preheating section 2 and the heating section 3 are no longer connected, and multiple Invar alloy foils 10 are enclosed in the preheating section 2 for preheating treatment;

[0042] In the process of preheating the multiple Invar alloy foils 10, the multiple electric heating plates 12 and the first circulation fan 14 are kept running. When the temperature inside the heating section 3 reaches the required high temperature, the electric hydraulic cylinder 29 at the top of the preheating section 2 is controlled to shrink and reset again to lift the baffle 31, and then the multiple supporting furnace rollers 8 are controlled to rotate, so that the foil hanging rack 9 and the multiple clamped Invar alloy foils 10 can be horizontally and linearly transported to the inside of the heating section 3, and then the electric hydraulic cylinder 29 at the top of the preheating section 2 is controlled to extend and run again until the baffle 31 is tightly against the limit bar 32. At this time, the multiple Invar alloy foils 10 are enclosed in the heating section 3, and rapid high-temperature heating can be performed. In the process of heating the multiple Invar alloy foils 10, the hot air discharged from the multiple first air outlets 13 flows from top to bottom, so that the multiple Invar alloy foils 10 can be kept in a suspended state;

[0043] When the high-temperature heating of multiple Invar alloy foils 10 is completed, the multiple electric heating plates 12 and the first circulation fan 14 are turned off, and then the electric hydraulic cylinder 29 at the top of the heating section 3 is controlled to shrink and reset, so that the connecting plate 30 and the baffle 31 can be controlled to move vertically upward to a high position. At this time, the baffle 31 no longer blocks the material inlet 6 on the right side wall of the heating section 3, and then the multiple supporting furnace rollers 8 are controlled to rotate, so that the foil hanging rack 9 and the multiple clamped Invar alloy foils 10 can be horizontally and linearly transported to the slow cooling section 4, and then the electric hydraulic cylinder 29 at the top of the heating section 3 is controlled to extend and run again until the baffle 31 is pressed against the limit strip 32. At this time, multiple Invar alloy foils 10 are enclosed in the slow cooling section 4, and then the second circulation fan 19 is controlled to run, so that the air in the slow cooling section 4 can pass through the second intake pipe 21, the second circulation fan 19, and the second exhaust pipe 2 2 enters the air distribution hood 17, and the air entering the air distribution hood 17 is discharged downward through the multiple second air outlet heads 18, so that the air in the slow cooling section 4 can circulate from top to bottom. By opening the two solenoid valves 25, the clean water can flow into the water tank 20 through the water inlet pipe 23 and then flow out from the water outlet pipe 24. When the air inside the slow cooling section 4 circulates, when the air flows in the second air intake pipe 21, part of the heat in the air will be transferred to the clean water through the pipe wall of the second air intake pipe 21, so that the air temperature in the slow cooling section 4 can be slowly reduced, and the multiple Invar alloy foils 10 can be slowly cooled down. In the process of slowly cooling down the multiple Invar alloy foils 10, since the hot air discharged from the multiple second air outlet heads 18 flows from top to bottom, the multiple Invar alloy foils 10 can be kept in a suspended state;

[0044] When the slow cooling of the multiple Invar alloy foils 10 is completed, the second circulation fan 19 and the two solenoid valves 25 are closed, and then the electric hydraulic cylinder 29 at the top of the slow cooling section 4 is controlled to shrink and reset, and the connecting plate 30 and the baffle 31 can be controlled to move vertically upward to a high position. At this time, the baffle 31 no longer blocks the material opening 6 on the right side wall of the slow cooling section 4, and then the multiple supporting furnace rollers 8 are controlled to rotate, so that the foil hanging rack 9 and the clamped multiple Invar alloy foils 10 can be horizontally and linearly transported to the fast cooling section 5, and then the slow cooling is controlled again. The electric hydraulic cylinder 29 at the top of the section 4 is extended and operated until the baffle 31 is pressed against the limit bar 32. At this time, the multiple Invar alloy foils 10 are enclosed in the rapid cooling section 5. Then, the air cooler 26 is controlled to operate so that the air in the rapid cooling section 5 is discharged from the third exhaust pipe 28 through the third air intake pipe 27 and the air cooler 26 in sequence, so that the air in the rapid cooling section 5 circulates. The cooling capacity generated by the air cooler 26 can be used to quickly cool the internal space of the rapid cooling section 5, and thus the multiple Invar alloy foils 10 can be quickly cooled.

[0045] After the rapid cooling of the multiple Invar alloy foils 10 is completed, the cooling fan 26 is turned off, the sealing door on the right side of the rapid cooling section 5 is opened, and the multiple supporting furnace rollers 8 are controlled to rotate, so that the foil hanging rack 9 and the multiple Invar alloy foils 10 that are clamped and fixed can be transported out, and the annealing operation is completed. Then, the multiple rotary handles 95 are rotated counterclockwise in sequence to remove the multiple Invar alloy foils 10 that have been annealed.

[0046] The above is a detailed introduction to a horizontal continuous annealing furnace for annealing Invar alloy foil provided by the present application. Specific embodiments are used in this article to explain the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A horizontal continuous annealing furnace for annealing Invar alloy foil, characterized in that: The invention comprises a bottom plate (1) and a preheating section (2), a heating section (3), a slow cooling section (4) and a fast cooling section (5) which are fixedly mounted on the bottom plate (1); the preheating section (2), the heating section (3), the slow cooling section (4) and the fast cooling section (5) are arranged in sequence from left to right; a material opening (6) is provided on both side walls of the preheating section (2), the heating section (3), the slow cooling section (4) and the fast cooling section (5); a sealing door (7) is rotatably mounted on the left outer wall of the preheating section (2) and the right outer wall of the fast cooling section (5); a plurality of supporting furnace rollers (8) are rotatably mounted in the preheating section (2), the heating section (3), the slow cooling section (4) and the fast cooling section (5); the plurality of supporting furnace rollers (8) are arranged at equal intervals; a material opening (6) is provided in the preheating section (2); A foil hanging rack (9) for fixing and hanging Invar alloy foil, the foil hanging rack (9) comprising a support plate (91), the support plate (91) being placed on a plurality of supporting furnace rollers (8) in the preheating section (2), a plurality of T-shaped rods (92) being fixedly mounted on the top of the support plate (91), the plurality of T-shaped rods (92) being evenly distributed, foil clamping assemblies being fixedly mounted on both ends of the top of the plurality of T-shaped rods (92), the plurality of clamping assemblies being clamped with Invar alloy foil (10), the clamping assemblies comprising a U-shaped plate (93), a screw rod (94), a rotary handle (95), an axle seat (96), a clamping plate (97) and a guide rod (98), the U-shaped plate (93) being fixedly mounted on one end of the top of the T-shaped rod (92) The screw rod (94) is threadedly penetrated on a side wall of the U-shaped plate (93) away from the T-shaped rod (92); the rotary handle (95) is fixedly mounted on an end of the screw rod (94) located outside the U-shaped plate (93); the shaft seat (96) is rotatably mounted on an end of the screw rod (94) located inside the U-shaped plate (93); the clamping plate (97) is fixedly mounted on a side of the shaft seat (96) away from the screw rod (94); the top of the Invar alloy foil extends into the U-shaped plate (93); one side of the Invar alloy foil (10) contacts with an inner wall of one side of the U-shaped plate (93); the other side of the Invar alloy foil (10) contacts with the clamping plate (97); and the guide rod (98) is fixedly mounted on the clamping plate (97). The guide rod (98) is disposed on one side of the U-shaped plate (93) and is located above the screw rod (94); one end of the guide rod (98) away from the clamping plate (97) slides through a side wall of the U-shaped plate (93) away from the T-shaped rod (92); the heating section (3) is provided with a heating mechanism for heating the Invar alloy foil; the slow cooling section (4) is provided with a slow cooling mechanism for slowly cooling the Invar alloy foil; the fast cooling section (5) is provided with a fast cooling mechanism for quickly cooling the Invar alloy foil; the tops of the preheating section (2), the heating section (3) and the slow cooling section (4) are all fixedly mounted with electric hydraulic cylinders (29); the conveying shaft ends of the three electric hydraulic cylinders (29) extend into the preheating section (2), the heating section (3) and the slow cooling section (4), respectively.The output shaft ends of the three electric hydraulic cylinders (29) are all provided with a blocking mechanism for blocking the material opening (6), the blocking mechanism comprising a connecting plate (30) and a baffle (31), the connecting plate (30) being fixedly mounted on the output shaft end of the electric hydraulic cylinder (29), the baffle (31) being fixedly mounted on one side of the connecting plate (30), the longitudinal section dimension of the connecting plate (30) being larger than the longitudinal section dimension of the material opening (6), and the right inner walls of the preheating section (2), the heating section (3) and the slow cooling section (4) being fixedly mounted with a limiting strip (32) located below the corresponding material opening (6), and the top of the baffle (31) being in contact with the corresponding limiting strip (32).

2. A horizontal continuous annealing furnace for annealing Invar alloy foil according to claim 1, characterized in that: The heating mechanism comprises a heating hood (11), a plurality of electric heating plates (12), a plurality of first air outlet heads (13), a first circulating fan (14), a first air intake pipe (15) and a first air exhaust pipe (16); the heating hood (11) is of a hollow structure; the heating hood (11) is fixedly mounted on the top inner wall of the heating section (3); the plurality of electric heating plates (12) are fixedly mounted on the top inner wall of the heating hood (11) and are evenly distributed; the plurality of first air outlet heads (13) are fixedly mounted on the top inner wall of the heating section (3); The first circulation fan (14) is fixedly mounted on the top of the heating section (3); one end of the first air intake pipe (15) is fixedly connected to the suction end of the first circulation fan (14); the other end of the first air intake pipe (15) passes through the rear side wall of the heating section (3); one end of the first exhaust pipe (16) is fixedly connected to the discharge end of the first circulation fan (14); the other end of the first exhaust pipe (16) extends into the heating cover (11).

3. A horizontal continuous annealing furnace for annealing Invar alloy foil according to claim 1, characterized in that: The slow cooling mechanism comprises an air distribution hood (17), a plurality of second air outlet heads (18), a second circulation fan (19), a water tank (20), a second air intake pipe (21) and a second air exhaust pipe (22); the air distribution hood (17) is fixedly mounted on the top inner wall of the slow cooling section (4); the air distribution hood (17) is a hollow structure; the plurality of second air outlet heads (18) are fixedly mounted on the bottom of the air distribution hood (17) and are distributed at equal intervals; the second circulation fan (19) and the water tank (20) are fixedly mounted on the top inner wall of the slow cooling section (4); The second circulation fan (19) is located at the top of the slow cooling section (4), and is located in front of the water tank (20). One end of the second air intake pipe (21) is fixedly connected to the suction end of the second circulation fan (19), and the other end of the second air intake pipe (21) passes through the water tank (20) and the rear side wall of the slow cooling section (4) in sequence. One end of the second exhaust pipe (22) is fixedly connected to the discharge end of the second circulation fan (19), and the other end of the second exhaust pipe (22) extends into the air distribution hood (17).

4. A horizontal continuous annealing furnace for annealing Invar alloy foil according to claim 3, characterized in that: A water inlet pipe (23) is fixedly mounted on the left side wall of the water tank (20), a water outlet pipe (24) is fixedly mounted on the right side wall of the water tank (20), and solenoid valves (25) are fixedly mounted on both the water inlet pipe (23) and the water outlet pipe (24).

5. The horizontal continuous annealing furnace for annealing Invar alloy foil according to claim 1, characterized in that: The quick cooling mechanism comprises a cold air fan (26), a third air intake pipe (27) and a third air exhaust pipe (28); the cold air fan (26) is fixedly mounted on the top of the quick cooling section (5); one end of the third air intake pipe (27) is fixedly connected to the suction end of the cold air fan (26); the other end of the third air intake pipe (27) extends into the quick cooling section (5); one end of the third air exhaust pipe (28) is fixedly connected to the discharge end of the cold air fan (26); the other end of the third air exhaust pipe (28) extends into the quick cooling section (5).

6. A horizontal continuous annealing furnace for annealing Invar alloy foil according to claim 1, characterized in that: Temperature sensors (33) are fixedly mounted on the front side walls of the preheating section (2), the heating section (3), the slow cooling section (4) and the fast cooling section (5), and the detection heads of the four temperature sensors (33) extend into the preheating section (2), the heating section (3), the slow cooling section (4) and the fast cooling section (5), respectively.

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