A fully automatic continuous annealing furnace for single-piece specimens of amorphous alloy strips

Abstract

The present invention relates to the field of annealing technology, and in particular to a fully automatic continuous annealing furnace for amorphous alloy strip single-piece sample, comprising an automatic loading device, a heat treatment furnace body, and an automatic unloading device connected in sequence, wherein the automatic loading device is provided with an automatic loading device connected to a transmission mechanism, and the end of the transmission mechanism away from the automatic loading device passes through the heat treatment furnace body and extends to the automatic unloading device. During operation, after the sample is placed on the automatic loading device, the sample is moved to the transmission mechanism, and the driving mechanism drives the transmission mechanism to move, so that the transmission mechanism automatically transmits the sample to the heat treatment furnace body, and the sample passes through the preheating zone, the heating and insulation zone, and the cooling zone in turn. After the sample is processed, the conveyor belt transmits the sample to the automatic unloading device. The process is all automatically transmitted by the machine. When the annealing furnace is used for annealing, the preparation process is simple and time-saving, and fully automatic continuous annealing can be achieved, which reduces manpower and improves work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of annealing, and in particular to a fully automatic continuous annealing furnace for amorphous alloy strip single-piece samples. Background Art

[0002] In the amorphous alloy strip production industry, the soft test characteristics of the strip are important reference indicators for extended products. As an important link in the production and testing of amorphous alloy strips, the annealing process directly affects the soft magnetic properties of the strip. Conventional annealing furnaces for amorphous alloy strips include horizontal ring sample continuous annealing furnaces and vertical cabinet annealing furnaces. Before annealing in a horizontal ring sample continuous annealing furnace, it is necessary to manually wind a section of the strip into a ring sample, insert a ceramic tube into the ring sample, and then manually push the ring sample inserted into the ceramic tube into the annealing furnace, and finally manually collect the annealed samples. The annealing furnace process preparation process is complicated and time-consuming, requiring a lot of manpower. The ceramic tube is easy to break during the annealing process, and the ceramic tube needs to be consumed in large quantities. It is easy to cause the ring sample to be stuck and broken, affecting the credibility of the subsequent soft magnetic properties test results. Annealing in a vertical cabinet annealing furnace cannot achieve continuous annealing. After completing one furnace annealing, it needs to be cooled to room temperature before the next furnace annealing. This process often takes several hours. The annealing furnace process has low working efficiency and cannot achieve timely detection results of the soft magnetic properties of the strip, which is not conducive to the production of amorphous alloy strips. Summary of the invention

[0003] In view of the current status of the above-mentioned prior art, the present invention provides a fully automatic continuous annealing furnace for single-piece samples of amorphous alloy strips to solve the above-mentioned technical problems.

[0004] The technical solution adopted by the present invention to solve the above technical problems is:

[0005] A fully automatic continuous annealing furnace for single-piece specimens of amorphous alloy strips, comprising an automatic loading device, a heat treatment furnace body, and an automatic unloading device connected in sequence, wherein the automatic loading device is provided with a transmission mechanism connected to the automatic loading device, and the end of the transmission mechanism away from the automatic loading device passes through the heat treatment furnace body and extends to be connected to the automatic unloading device, a mounting seat is provided below the heat treatment furnace body, and a driving mechanism for driving the transmission mechanism is provided on the mounting seat, the heat treatment furnace body is provided with a feed port close to the automatic loading device and a discharge port close to the automatic unloading device, the feed port and the discharge port are both provided with gates, the mounting seat is provided with a switch cylinder for controlling the opening and closing of the gates, the mounting seat is provided with a control mechanism to control the operation of the entire device, and a preheating zone, a heating and insulation zone, and a cooling zone are sequentially provided in the heat treatment furnace body from the feed port to the discharge port.

[0006] By adopting the above technical solution, when working, after the sample is placed on the automatic loading device, the sample is moved to the transmission mechanism, and the driving mechanism drives the transmission mechanism to move, so that the transmission mechanism automatically transmits the sample to the heat treatment furnace body, and the sample passes through the preheating area, the heating and insulation area and the cooling area in turn. After the sample is processed, the transmission mechanism transmits the sample to the automatic unloading device, and finally unloads it automatically. This process only requires people to put the sample into the automatic loading device and take the sample out of the automatic unloading device. The rest is automatically transmitted by the machine, which can realize fully automatic continuous annealing, reduce manpower and improve work efficiency.

[0007] It is further configured that heating wires are provided on the inner wall of the preheating zone and the inner wall of the heating and insulation zone, the outer layer of the heating wires is provided with stone wool, the heating and insulation zone is provided with an energized coil, the energized coil is arranged around the furnace body and is located on the outside of the stone wool, and the outer layer of the furnace body of the cooling zone is provided with multiple groups of cooling water pipes, and the cooling water pipes are connected to an external water tank.

[0008] By adopting the above technical scheme, the heating wire is heated to heat the furnace chamber in the preheating zone, and the stone wool is used for heat preservation and prevention of heat loss. After the sample enters the heating and heat preservation zone, the energized coil runs to generate a magnetic field in the direction of the furnace chamber to magnetically treat the sample. The magnetically treated sample enters the cooling zone, and the cooling water in the cooling water pipe cools the furnace chamber.

[0009] It is further configured that the automatic unloading device and the automatic loading device both include a box body and a pallet placement rack arranged in the box body, a driving motor is arranged at the bottom of the box body, the output end of the driving motor is connected to the first gear plate, the upper end of the box body is fixed with a second gear plate, a chain is connected between the first gear plate and the second gear plate, the chain circulates in the box body, fixed rods are fixedly connected to the chain at a certain interval, two hanging rods are movably connected under the fixed rods, a pallet placement rack is connected between the hanging rods, the pallet placement rack includes a plurality of roller connections, a pushing cylinder is arranged on the side wall of the upper end of the box body, and the telescopic rod of the pushing cylinder faces the heat treatment furnace body.

[0010] By adopting the above technical solution, the driving motor drives the first gear plate to rotate, thereby driving the chain to rotate around, and due to the transmission relationship, the second gear plate is driven to rotate, and the tray rack connected to the chain hanger moves around with the chain. When the tray rack moves to the upper end of the box, the push cylinder pushes the sample tray on the tray rack, so that the sample tray slides toward the transmission mechanism through the roller until it moves to the transmission mechanism, and the transmission mechanism sends the sample to the next process. The above solution can ensure that each layer of the tray rack moves to the uppermost position, thereby achieving the effect of continuous transportation of the sample tray.

[0011] It is further configured that a window is provided on the front side of the box.

[0012] By adopting the above technical solution, a window is provided to facilitate personnel to place the sample tray on the tray placement rack.

[0013] It is further configured that the transmission mechanism includes a support column arranged on a mounting seat, a transmission belt supported by the support column, and the driving mechanism drives the transmission belt to move.

[0014] By adopting the above technical solution, a plurality of support columns provide support force for the conveyor belt, thereby ensuring the smooth operation of the conveyor belt in transporting the sample tray.

[0015] It is further configured that the driving mechanism includes a speed regulating motor and a reduction motor, and the speed regulating motor is connected to the transmission belt.

[0016] By adopting the above technical solution, the speed regulating motor and the reduction motor are operated to drive the conveyor belt for transportation.

[0017] It is further configured that a thermocouple is provided in the heat treatment furnace body.

[0018] By adopting the above technical solution, the thermocouple can feed back the temperature signal in the furnace body.

[0019] It is further configured that a furnace cover is provided at the upper end of the heat treatment furnace body.

[0020] By adopting the above technical solution, the furnace cover can play the role of isolating temperature, shielding the geomagnetic field and preventing dust, so as to ensure the normal use of the entire equipment.

[0021] It is further configured that a sensor is provided on the automatic unloading device, and the sensor is connected to an alarm.

[0022] By adopting the above technical solution, when each layer of the tray placement rack has been used, the alarm will sound a prompt alarm to remind the employee to take out the sample tray through the front window.

[0023] Compared with the prior art, the advantages of the present invention are:

[0024] The present invention provides a fully automatic continuous annealing furnace for amorphous alloy strip single-piece sample, comprising an automatic loading device, a heat treatment furnace body, and an automatic unloading device connected in sequence, wherein the automatic loading device is provided with a transmission mechanism connected to the automatic loading device, and one end of the transmission mechanism away from the automatic loading device passes through the heat treatment furnace body and extends to be connected to the automatic unloading device. During operation, after the sample is placed on the automatic loading device, the sample is moved to the transmission mechanism, and the driving mechanism drives the transmission mechanism to move, so that the transmission mechanism automatically transmits the sample to the heat treatment furnace body, and the sample passes through the preheating zone, the heating and insulation zone, and the cooling zone in turn. After the sample is processed, the transmission mechanism transmits the sample to the automatic unloading device, and finally unloads the sample automatically. This process only requires a person to put the sample into the automatic loading device and take out the sample from the automatic unloading device, and the rest are automatically transmitted by the machine, so that fully automatic continuous annealing can be realized, which reduces manpower and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the fully automatic continuous annealing furnace for amorphous alloy strip single-piece sample of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the automatic feeding device in the present invention;

[0027] Figure 3 It is a side view of the automatic feeding device of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the pallet placement rack in the present invention;

[0029] Figure 5 It is a connection diagram of the automatic feeding device and the transmission mechanism in the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the heat treatment furnace body in the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the gate in the present invention.

[0032] In the figure: 1. Automatic feeding device; 11. Box; 111. Driving motor; 1111. Rotating shaft; 112. Pushing cylinder; 113. First gear plate; 114. Second gear plate; 12. Tray placing rack; 121. Roller; 13. Chain; 131. Fixing rod; 132. Hanging rod; 14. Opening; 2. Mounting seat; 21. Driving mechanism; 211. Speed ​​regulating motor; 212. Speed ​​reducing motor; 22. Instrument and function button; 23. Open Close cylinder; 3. Heat treatment furnace body; 31. Feed inlet; 32. Discharge outlet; 33. Preheating zone; 34. Heating and insulation zone; 35. Cooling zone; 36. Pressure valve; 37. Inlet pipe; 38. Outlet pipe; 39. Furnace cover; 4. Automatic unloading device; 5. Transmission mechanism; 51. Transmission belt; 511. Pressing wheel; 52. Support column; 6. Heating wire; 61. Stone wool; 62. Energized coil; 7. Thermocouple; 8. Cooling water pipe; 9. Gate. DETAILED DESCRIPTION

[0033] like Figure 1 As shown, the present invention provides a fully automatic continuous annealing furnace for single-piece specimens of amorphous alloy strips, comprising an automatic loading device 1, a heat treatment furnace body 3 and an automatic unloading device 4 which are connected in sequence, a mounting seat 2 for supporting is arranged below the heat treatment furnace body 3, a transmission mechanism 5 is connected to the upper right side of the automatic loading device 1, and an end of the transmission mechanism 5 away from the automatic loading device 1 passes through the heat treatment furnace body 3 and extends to be connected to the automatic unloading device 4 on the right side.

[0034] like Figure 2-Figure 4As shown, the automatic loading device 1 includes a box 11 and a plurality of tray racks 12 arranged in the box 11, and a sample tray is placed on the tray rack 12. The length and width of the sample tray are slightly larger than the length and width of the sample, and is used to hold a single or multiple samples for stacking, and the sample tray is made of high temperature resistant and non-magnetic materials. A driving motor 111 is arranged at the bottom of the box 11, and a rotating shaft 1111 is connected to the output end of the driving motor 111, and a first gear plate 113 is coaxially connected to the other end of the rotating shaft 1111. Two second gear plates 114 are suspended from the upper end of the box 11, and a chain 13 is connected between the first gear plate 113 and the second gear plate 114. Chains 13 are arranged on both sides of the box 11, and the chain 13, the driving motor 111, the first gear plate 113 and the second gear plate 114 form a three-dimensional circulating moving system, and the driving motor 111 drives the first gear plate 113 to rotate, so that the chain 13 circulates in the box 11. A fixed rod 131 is provided at a certain interval on the chain 13, and two suspension rods 132 are movably connected below the fixed rod 131. The tray rack 12 is connected between the two suspension rods 132, wherein the tray rack 12 is composed of a plurality of rollers 121 connected together, and a push cylinder 112 is provided on the upper left side wall of the box body 11, and the telescopic rod of the push cylinder 112 faces the heat treatment furnace body 3, which is used to give a certain driving force to the topmost sample tray, so that the sample tray slides to the right through the roller 121. An opening 14 connected to the transmission mechanism 5 is provided on the side wall of the box body 11 close to the transmission mechanism 5, and the sample tray moves to the transmission mechanism 5 through the opening 14. A window is provided on the front of the box body 11 to facilitate manual placement of the sample tray on the multi-layer tray rack 12.

[0035] like Figure 5 As shown, the transmission mechanism 5 includes a support column 52 installed on the mounting base 2, a transmission belt 51 supported by the support column 52, a driving mechanism 21 for driving the transmission belt 51 is arranged on the mounting base 2, the driving mechanism 21 includes a speed regulating motor 211 and a reduction motor 212 connected to the transmission belt 51, and a pressure wheel is arranged under the transmission belt 51. Several support columns 52 provide support force for the transmission belt 51 to ensure the smooth operation of the transmission belt 51 in transporting the sample tray. The pressure wheel is mainly used to adjust the tension of the transmission belt 51, so as to ensure that the transmission belt 51 remains taut in an environment with repeated changes in temperature. The transmission belt 51 and the support column 52 are both made of high temperature resistant and non-magnetic materials.

[0036] like Figure 6 , Figure 7As shown, the heat treatment furnace body 3 is a tunnel annealing furnace, which includes a feed port 31, a preheating zone 33, a heating and insulation zone 34, a cooling zone 35 and a discharge port 32 from left to right. The feed port 31 and the discharge port 32 are provided with gates, and the gates include a left gate and a right gate, one on the left and one on the right. The mounting seat 2 is provided with a switch cylinder for controlling the opening and closing of the left gate and the right gate respectively. The feed port 31 also includes an air outlet pipe 38 for removing air and protective gas from the furnace body. The discharge port 32 also includes an air inlet pipe 37 for introducing protective gas. The discharge port 32 is also provided with a pressure display valve for monitoring the pressure of the protective gas in the furnace body. The inner side wall of the preheating zone 33 and the inner side wall of the heating and insulation zone 34 are both provided with heating wires for heating and heating the furnace chamber. A group of thermocouples 7 are provided at the bottom of the furnace chamber of the preheating zone 33 to feed back the temperature signal in the furnace chamber to the control mechanism. The outer layer of the heating wire device in the preheating zone 33 is also provided with a certain thickness of graphite wool for heat preservation and heat loss prevention. The length of the furnace chamber in the heating and heat preservation zone 34 is longer than that in the preheating zone 33, and two groups of thermocouples 7 are arranged at different positions at the bottom, which are used to feedback the temperature signals of different parts of the furnace chamber to the control mechanism. The outer layer of the heating wire device in the heating and heat preservation zone 34 is also provided with a certain thickness of graphite wool for heat preservation and heat loss prevention. The outer layer of the graphite wool device in the heating and heat preservation zone 34 is wound with a certain number of turns of energized coils 62, which are used to generate a magnetic field in the furnace chamber in the direction of the furnace chamber. The outer layer of the furnace body in the cooling zone 35 is provided with multiple groups of cooling water pipes 8, which are connected to an external water tank for cooling the furnace chamber. A group of thermocouples 7 is arranged at the bottom of the furnace chamber in the cooling zone 35, which is used to feedback the temperature signal in the furnace chamber to the control mechanism. The outer layer of the entire heat treatment furnace body 3 is also provided with a furnace cover 39 for isolating temperature, shielding the geomagnetic field and dust prevention. The heat treatment furnace body 3 is made of high temperature resistant and non-magnetic materials.

[0037] like Figure 1 As shown, the structure of the automatic unloading device 4 is similar to that of the automatic loading device 1, except that the opening 14 connected to the conveyor belt 51 is located at the upper left end and connected to the end of the conveyor belt 51. The automatic unloading device 4 is used to receive the annealed sample tray transported by the conveyor belt 51. The automatic unloading device 4 is provided with a sensor, which is connected to an alarm. When each layer of the tray placement rack 12 has been used, a prompt sound alarm will be issued to prompt the employee to take out the sample tray through the front window.

[0038] The mounting seat 2 is provided with instruments and function buttons 22, including a power switch, a heating button, a magnetizing button, a magnetic field current adjustment knob, an emergency stop button, a cooling water circulation water flow regulating valve, etc. The power switch includes a main power switch, a loading and unloading device power switch, a transmission system power switch, an annealing furnace power switch, etc. When the heating button is turned on, the heating wire works, and the temperature in the furnace rises to the set temperature; when the heating button is turned off, the heating wire stops working. When the magnetizing button is turned on, the power coil 62 is energized to generate a magnetic field in the furnace chamber in the direction of penetrating the furnace chamber; when the magnetizing button is turned off, the power coil 62 is de-energized, and the magnetic field in the furnace chamber disappears. The magnetic field current can be adjusted by the magnetic field current adjustment knob, thereby adjusting the size of the magnetic field. The emergency stop button is mainly used for emergency stop of equipment operation due to abnormal failure. The cooling water circulation water flow regulating valve can be used to adjust the cooling water flow, thereby realizing the control of the temperature of the cooling zone 35 of the annealing furnace.

[0039] The operation of the automatic loading device 1, the automatic unloading device 4 and the transmission mechanism 5 is automatically started and stopped by computer control, and the heating and insulation process of the preheating zone 33 and the heating and insulation zone 34 is automatically started and stopped by the computer control mechanism.

[0040] The control mechanism includes an input and output unit, a PC control unit, a PLC control unit, a PID control unit and an execution unit. The input and output unit is used to set various settings for the operation of the system. Specific setting items include the temperature of the preheating zone 33, the temperature of the heating and insulation zone 34, the temperature of the cooling zone 35, and the sample transportation time interval. The PC control unit is used to record various settings in the software control program and communicate with the PCL control unit. The specific work content is that the PC control unit adopts a software control system, and the software includes several annealing process functions such as system timing, process curve recording, and fault alarm recording. The PLC control unit is used to control the start of each execution unit after receiving the start signal of the PC control unit, and send the corresponding start completion signal or alarm signal to the PC control unit. The main work content of the PLC control unit is to control the operation of the loading and unloading device, control the simultaneous opening and closing of the feed port 31 and the discharge port 32, and control the interval operation and stop of the transmission mechanism 5. The PID control unit is used for the heating program of the heat treatment part of the annealing furnace, which can realize the non-overshoot control of the annealing temperature and ensure the reliability and stability of the heating temperature and the insulation temperature. The execution unit includes components for power-on and power-off functions, a material loading and unloading device circulation system, a thyristor power adjustment component, a magnetic field power adjustment component, a magnetic field current and voltage display component, etc. Most of the above control mechanisms are arranged in the mounting seat 2.

[0041] The implementation principle of this embodiment is as follows: when working, open the window, place the sample on the sample tray, close the window, start the drive motor 111, and then the chain 13 drives the tray placement rack 12 to move around, and when the sample tray moves to the highest layer of the box 11, the telescopic rod of the push cylinder 112 pushes the sample tray so that the sample tray slides to the right through the roller 121 and moves to the conveyor belt 51 through the opening 14. The conveyor belt 51 automatically transfers the sample to the heat treatment furnace body 3, and the sample passes through the preheating zone 33, the heating and insulation zone 34 and the cooling zone 35 in sequence. After the sample is processed, the conveyor belt 51 transfers the sample to the automatic unloading device 4, and takes the sample out of the automatic unloading device 4. Through automatic transmission by the machine, fully automatic continuous annealing can be achieved, which reduces manpower and improves work efficiency.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fully automatic continuous annealing furnace for single-piece specimens of amorphous alloy strips, characterized in that: The invention comprises an automatic loading device (1), a heat treatment furnace body (3), and an automatic unloading device (4) which are connected in sequence, wherein the automatic loading device (1) is provided with a transmission mechanism (5) connected to the automatic loading device (1), an end of the transmission mechanism (5) away from the automatic loading device (1) passes through the heat treatment furnace body (3) and extends to be connected to the automatic unloading device (4), a mounting seat (2) is provided below the heat treatment furnace body (3), a driving mechanism (21) for driving the transmission mechanism (5) is provided on the mounting seat (2), and the heat treatment furnace body (3) is provided with There is a feed port (31) near the automatic loading device (1) and a discharge port (32) near the automatic unloading device (4), the feed port (31) and the discharge port (32) are both provided with gates (9), a switch cylinder (23) for controlling the opening and closing of the gate (9) is provided on the mounting seat (2), a control mechanism is provided in the mounting seat (2) to control the operation of the entire device, and a preheating zone (33), a heating and heat preservation zone (34), and a cooling zone (35) are sequentially provided in the heat treatment furnace body (3) from the feed port (31) to the discharge port (32); A heating wire (6) is arranged on the inner wall of the preheating zone (33) and the inner wall of the heating and heat preservation zone (34), the outer layer of the heating wire (6) is provided with stone wool (61), the heating and heat preservation zone (34) is provided with an energized coil (62), the energized coil (62) is arranged around the furnace body and is located on the outer side of the stone wool (61), and a plurality of cooling water pipes (8) are arranged on the outer layer of the furnace body of the cooling zone (35), and the cooling water pipes (8) are connected to an external water tank; The automatic unloading device (4) and the automatic loading device (1) both comprise a box (11) and a tray placement rack (12) arranged in the box (11); a driving motor (111) is arranged at the bottom of the box (11); an output end of the driving motor (111) is connected to a first gear plate (113); a second gear plate (114) is fixed to the upper end of the box (11); a chain (13) is connected between the first gear plate (113) and the second gear plate (114); the chain (13) is arranged on the box (11) ) for internal circulation, a fixed rod (131) is fixedly connected to the chain (13) at a certain interval, two suspension rods (132) are movably connected below the fixed rod (131), a pallet placement rack (12) is connected between the suspension rods (132), and the pallet placement rack (12) is composed of a plurality of rollers (121) connected together, a push cylinder (112) is arranged on the upper side wall of the box body (11), and the telescopic rod of the push cylinder (112) is arranged toward the heat treatment furnace body (3), and the heat treatment furnace body (3) is made of high temperature resistant and non-magnetic material.

2. The fully automatic continuous annealing furnace for single-piece amorphous alloy strip samples according to claim 1, characterized in that: The front side of the box body (11) is provided with a window.

3. The fully automatic continuous annealing furnace for single-piece amorphous alloy strip samples according to claim 2, characterized in that: The transmission mechanism (5) comprises a support column (52) arranged on a mounting seat (2) and a transmission belt (51) supported by the support column (52); and the driving mechanism (21) drives the transmission belt (51) to move.

4. The fully automatic continuous annealing furnace for single-piece amorphous alloy strip samples according to claim 3, characterized in that: The driving mechanism (21) comprises a speed regulating motor (211) and a reduction motor (212); the speed regulating motor (211) is connected to the transmission belt (51).

5. The fully automatic continuous annealing furnace for amorphous alloy strip single-piece sample according to claim 4, characterized in that: A thermocouple (7) is arranged in the heat treatment furnace body (3).

6. The fully automatic continuous annealing furnace for single-piece amorphous alloy strip samples according to claim 5, characterized in that: A furnace cover (39) is provided at the upper end of the heat treatment furnace body (3).

7. The fully automatic continuous annealing furnace for single-piece amorphous alloy strip samples according to claim 6, characterized in that: The automatic unloading device (4) is provided with a sensor, and the sensor is connected to an alarm.

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