An intelligent debinding system for ferrite cores

Abstract

An intelligent debinding system for ferrite cores, comprising a heating furnace, a cooling furnace, a track and a control device. A transport vehicle is movably arranged on the track, and the heating furnace and the cooling furnace are arranged on the track. A debinding condenser, a drain condenser, an air mixer, a dryer, a cooling furnace, a primary heater, a secondary heater and a tertiary heater are connected in series and communicated in sequence from the air outlet to the air inlet of the heating furnace. The transport vehicle runs on the track and passes through the heating furnace and the cooling furnace in sequence, facilitating transportation and saving manpower. The gas discharged from the heating furnace is recycled to avoid environmental pollution, and the heat in the gas after passing through the cooling furnace is fully utilized to avoid energy waste. The colloid and moisture of the parts are evaporated at one time and cooled and recycled respectively, improving the processing quality of the parts.

Description

Technical Field

[0001] The present invention belongs to the technical field of alloy sintering, and particularly relates to an intelligent debinding system for ferrite cores. Background Art

[0002] With the development of technology, the processing of modern metals has changed the traditional casting technology and machining methods, and new metal extrusion forming technologies have emerged. Especially during the forming process of special alloy parts, new ceramic parts, ferrite components, etc., often by adding a binder, obtaining the required shape through extrusion forming technology, and then obtaining the final product through calcination.

[0003] For example, ferrite cores are mainly composed of three metal elements: iron (Fe), manganese (Mn), and zinc (Zn), and are usually called manganese-zinc ferrite. Toroidal ferrite cores have high magnetic effects because they have no air gap and a consistent cross-sectional area. Ferrite cores are made of dense and homogeneous ceramic-structured non-metallic magnetic materials, have low coercivity, and are also called soft ferrite. It is composed of iron oxide (Fe₂O₃) and oxides or carbonate compounds of one or several other metals (such as manganese, zinc, nickel, magnesium). After the ferrite raw materials are pressed, they are sintered at a high temperature of 1300 °C, and finally processed by machines to make finished cores that meet the application requirements. Compared with other types of magnetic materials, the advantages of ferrite are high magnetic permeability, high resistance, and low eddy current loss in a wide frequency range. These material properties make ferrite an ideal material for manufacturing high-frequency transformers, broadband transformers, adjustable inductors, and other high-frequency circuits from 10 kHz to 50 MHz.

[0004] During the forming process of ferrite, it is often necessary to mix various components and then extrude them into shape, and then perform calcination. During the calcination process, since the product contains moisture and colloid, they will be discharged during heating and pollute the environment. During the heating and cooling of the formed ferrite, the discharged gas carries a certain amount of heat. If this heat is directly discharged into the atmosphere, it is also a waste of energy. In the existing calcination process after ferrite forming, the transfer of materials wastes a lot of manpower, the process is cumbersome, and the time period for separating the moisture and colloid of ferrite cannot be well controlled, ultimately resulting in poor product quality. Summary of the Invention

[0005] To solve the above technical problems of environmental pollution, energy waste, and manpower waste during the calcination process of ferrite, the present invention provides an intelligent debinding system for ferrite cores.

[0006] The object of the present invention is achieved by the following technical solutions. An intelligent degumming system for a ferrite magnetic core according to the present invention includes a heating furnace, a cooling furnace, a track, and a control device. A transport vehicle is movably arranged on the track. The heating furnace and the cooling furnace are arranged on the track. After placing the parts to be sintered on the transport vehicle, it is sent to the heating furnace for heating, and after heating is completed, it is sent to the cooling furnace for cooling. Outside the heating furnace, a degumming condenser, a drain condenser, an air mixer, a dryer, the cooling furnace, a primary heater, a secondary heater, and a tertiary heater are successively connected in series on the ventilation duct from the air outlet to the air inlet of the heating furnace. The drain condenser uses outside air as the cooling gas. The outside air is the air in the environment where the system is located, and the temperature of the outside air is room temperature or normal temperature. The cooling gas discharged from the drain condenser is input into the air mixer. The air mixer mixes the outside air with the gas discharged from the heating furnace after removing colloid and moisture. The gas output by the air mixer is dried by the dryer and then used to cool the parts in the cooling furnace. The cooling gas inlet of the degumming condenser is connected to the outlet of the primary heater, and its cooling gas outlet is connected to the inlet of the secondary heater. The gas output by the secondary heater enters the heating furnace to evaporate the moisture and colloid on the parts. The gas output by the tertiary heater enters the heating furnace to sinter the parts.

[0007] The advantages of the above technical solutions are as follows: The transport vehicle runs on the track and passes through the heating furnace and the cooling furnace in sequence, which is convenient for transportation and saves manpower; The gas discharged from the heating furnace is recycled, avoiding environmental pollution, and making full use of the heat in the gas after passing through the cooling furnace, avoiding energy waste, and at the same time limitedly avoiding the leakage of high-temperature gas and reducing the incidence of high-temperature gas injury accidents; The colloid and moisture of the parts are evaporated at one time, cooled and recycled respectively, improving the processing quality of the parts.

[0008] Further, the interior of the heating furnace is hollow. Channels for the transport vehicle and the parts it carries to pass through are arranged on the front and rear wall bodies of the heating furnace along the extending direction of the track. A notch matching the transport vehicle is arranged at the bottom of the heating furnace. When the transport vehicle runs below the heating furnace, the notch at the bottom of the heating furnace is closed; Furnace doors are slid up and down on the outer sides of the front and rear wall bodies of the heating furnace. After the furnace doors slide down, the two ends of the corresponding channels on the front and rear wall bodies of the heating furnace are closed; Sliders are arranged on both sides of each furnace door of the heating furnace. Each slider is slidably arranged on the corresponding slide rail on the heating furnace. Pulleys are arranged at the top and outside of the slide rail. The pulleys on the same slide rail are slidably arranged on the same pulling rope. One end of the pulling rope is fixed on the corresponding furnace door, and the other end is wound around the corresponding reel. The reel is driven by a motor. The motor drives the reel to release or wind the pulling rope on the reel, so as to lower or raise the furnace door; A temperature sensor is arranged in the heating furnace. The motor and the temperature sensor are communicatively connected to the control device.

[0009] The benefits of the above technical solution are: channels are set on the heating furnace and cooling furnace, so that the transport vehicle can naturally cooperate with the heating furnace and cooling furnace, thereby improving the efficiency of the transport vehicle's transfer; the control device controls the lifting and lowering of the furnace door, saving manpower, avoiding the operating workers from being in a high-temperature working environment, reducing the harm of high temperature to workers, and optimizing the working environment.

[0010] Furthermore, a heating element for increasing the furnace temperature is provided in the heating furnace, and the heating element is communicatively connected to the control device.

[0011] The benefits of the above technical solution are that it can be used to quickly increase the temperature in the heating furnace and achieve high-efficiency sintering of parts.

[0012] Furthermore, the interior of the debinding condenser is hollow, and a spiral air duct is provided in the inner cavity. A condensation tube is provided through the debinding condenser at the center of the spiral air duct; one end of the spiral air duct serves as the inlet of the gas to be cooled, and the other end serves as the outlet of the cooled gas. One end of the condensation tube is used to input the cooling gas, and the other end is used to output the cooling gas; a discharge pipe is provided at the lowest position of the debinding condenser for discharging the condensed colloid.

[0013] The benefit of the above technical solution is that the above condenser can fully utilize the gas in the system for cooling, thereby saving energy.

[0014] Furthermore, the air mixer is hollow inside, and a plurality of staggered partitions are provided in the inner cavity, which divide the cavity inside the air mixer into a plurality of interconnected spaces; a first air inlet and a second air inlet are respectively provided on the wall near the end of the air mixer, the first air inlet is used to input the exhaust gas of the heating furnace after the colloid and moisture are removed, and the second air inlet is connected to the outside air; a mixed air outlet is provided on the wall near the other end of the air mixer, and the mixed air outlet is connected to the inlet of the dryer.

[0015] Furthermore, the first-stage heater, the second-stage heater, and the third-stage heater are air heaters. The interior of the air heater is hollow, and multiple heating resistance wires are distributed in its inner cavity. The inlet of the first-stage heater is close to one end of the air heater, and the outlet is close to the other end of the air heater. A temperature sensor for detecting the output gas temperature is set on the inner wall of the air heater near the outlet. The temperature sensor is communicated with the control device, and the control device is communicated with the power supply of the heating resistance wire for controlling the heating temperature of the heating resistance wire.

[0016] Further, a first travel switch is provided near the feed inlet of the heating furnace. The first travel switch is connected to the control device. The control device sends an instruction to the heating furnace according to the signal of the first travel switch to control the opening of the furnace door on the heating furnace. A second travel switch is provided near the feed inlet of the cooling furnace. The second travel switch is connected to the control device. The control device sends an instruction to the cooling furnace according to the signal of the second travel switch to control the opening of the furnace door on the cooling furnace.

[0017] The beneficial effects of the above technical solution are as follows: The intelligent level of the system is improved, and manpower is saved.

[0018] Further, sensors, a battery, a charging port, an alarm, and a self - contained control device are provided on the transport vehicle. The wheels of the transport vehicle are movably arranged on the track. The motor on the transport vehicle drives the wheels. When the battery power is insufficient, the control device controls the alarm to give an alarm and moves the transport vehicle to the charging pile. The sensor can identify obstacles ahead and send a signal to the self - contained control device to control the transport vehicle to stop. After the obstacle is removed, the self - contained control device controls the transport vehicle to continue moving forward. The self - contained control device of the transport vehicle is communicatively connected to the control device of the system.

[0019] Further, the heating furnace, the debinding condenser, the drain condenser, the air mixer, the dryer, the cooling furnace, the primary heater, the secondary heater, and the tertiary heater are connected by pipelines. A blower is provided on the pipeline. The blower is communicatively connected to the control device.

[0020] Further, the track is a closed track. A branch track is connected to the track. A charging pile for charging the transport vehicle is provided on one side of the branch track. A loading area is provided on one side of the track, and an unloading area is provided on the other side. The heating furnace and the cooling furnace are provided on one section of the track between the loading area and the unloading area.

[0021] The beneficial effects of the above technical solution are as follows: While charging the transport vehicle, the normal operation of other transport vehicles is not delayed, and the production efficiency is improved.

[0022] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are specifically given and described in detail in conjunction with the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a block diagram of an embodiment of an intelligent debinding system for ferrite cores according to the present invention;

[0024] Figure 2 is Figure 1 the front view of the heating furnace in

[0025] Figure 3 It is a cross-sectional view of the condenser;

[0026] Figure 4 It is Figure 1 a cross-sectional view of the air mixer in;

[0027] Figure 5 It is a cross-sectional view of the air heater;

[0028] Figure 6 It is Figure 1 an overall schematic diagram of the track shown in;

[0029] Figure 7 It is Figure 2 a front view of the transport vehicle in;

[0030] Figure 8 It is a connection schematic diagram of the control device.

[0031]

Reference Signs

[0032] 1 - Track, 2 - Heating furnace, 201 - Furnace body, 202 - Furnace door, 203 - Bracket, 204 - Motor, 205 - Drum, 206 - Slide block, 207 - Pulling rope, 208 - Slide rail, 209 - Pulley, 210 - Heating element, 3 - Cooling furnace, 4 - Fan, 5 - Pipeline, 6 - Glue discharging condenser, 7 - Drainage condenser, 8 - Air mixer, 801 - First air inlet, 802 - Second air inlet, 803 - Mixed air outlet, 804 - Partition board, 9 - Dryer, 10 - Primary heater, 11 - Secondary heater, 12 - Tertiary heater, 13 - First travel switch, 14 - Second travel switch, 15 - Material taking place, 16 - Loading place, 17 - Charging pile, 18 - Condenser, 1801 - Hot gas inlet, 1802 - Hot gas outlet, 1803 - Cold gas inlet, 1804 - Cold gas outlet, 1805 - Discharge pipe, 1806 - Spiral air duct, 1807 - Condensing pipe, 19 - Air heater, 1901 - Cold air inlet, 1902 - Hot air outlet, 1903 - Heating resistance wire, 1904 - Temperature sensor, 20 - Transport vehicle, 2001 - Placing table, 2002 - Battery, 2003 - Alarm, 2004 - Charging port, 2005 - Wheel. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] An embodiment of an intelligent degumming system for a ferrite magnetic core according to the present invention is as follows Figures 1 to 8 As shown, it includes an annular track 1 connected end to end, a control device, and a heating furnace 2 and a cooling furnace 3 arranged on the track 1. A transport vehicle 20 runs on the track 1, and a loading area 16 and a material taking area 15 are arranged beside the track 1. The transport vehicle 20 places the formed ferrite magnetic core at the loading area 16, and then enters the heating furnace 2 for heating. After degumming and sintering are completed, the ferrite magnetic core is sent to the cooling furnace 3. Then, the transport vehicle sends the cooled ferrite magnetic core to the material taking area 15. After the ferrite magnetic core is taken off, the empty transport vehicle is sent to the loading area for loading. The track 1 is connected with a branch track, and a charging pile 17 is arranged beside the branch track. If the transport vehicle 20 runs out of power, the transport vehicle emits an alarm sound and moves to the branch track under the control of its own control device, and uses the charging pile 17 there for charging. While charging, it does not affect the operation of other transport vehicles 20.

[0035] The heating furnace 2 includes a furnace body 201. The bottom of the furnace body 201 is arranged on the working surface through a bracket 203. The interior of the furnace body 201 is a cavity, and air inlets and air outlets are arranged on the wall of the furnace body 201. Air with different temperatures is input through the air inlets to heat the ferrite cores in the furnace body, so as to realize water removal, glue discharging and fixed molding of the ferrite cores. The gas after heating the ferrite cores is output through the air outlets. In the running direction of the track 1, through channels penetrating inside and outside the furnace body 201 are arranged on the front and rear walls of the furnace body 201. A notch is arranged at the bottom of the furnace body 201, and the notch communicates with the channels on the front and rear walls of the furnace body 201. Furnace doors are arranged on the front and rear outer walls of the furnace body 201. The furnace door 202 is slidably arranged on the outer wall of the furnace body 201. Sliders 206 are arranged on both sides of the furnace door 202. The sliders 206 are slidably arranged in corresponding slide rails 208. The slide rails 208 are arranged on the outer wall of the furnace body 201 on the same side as the corresponding furnace door 202 and extend upward beyond the top of the heating furnace 2. Pulleys 209 are arranged on the top and outer side walls of the slide rails 208. Motor brackets are arranged on the left and right outer walls of the furnace body 201. Motors 204 and winding drums 205 are arranged on the motor brackets. A pulling rope 207 is wound around the winding drum 205. The other end of the pulling rope 207 sequentially bypasses two corresponding pulleys 209 and is fixed on the furnace door 202. The motors 204 on both sides of the same furnace door drive the winding drums 205 to rotate synchronously. The winding drums 205 rotate to wind or release the pulling rope 207, so that the furnace door 202 rises or falls. When the furnace door 202 falls, it covers the corresponding channels on the wall of the furnace body 201 to close the furnace body 201. A plurality of heating elements 210 are distributed on the inner wall of the heating furnace. In the advancing direction of the transport vehicle, gaps are left between the heating elements 210. After placing the parts on the transport vehicle 20, gaps are left between the parts. After the transport vehicle is pushed into the heating furnace, the parts can be arranged between the heating elements 210 to facilitate heating of the parts. The heating elements 210 can heat the parts to 1300 °C to sinter the parts. A first travel switch 13 is arranged at the entrance of the heating furnace 2. When the transport vehicle 20 travels to the front entrance of the heating furnace 2, the first travel switch 13 senses that the transport vehicle 20 arrives in front of the heating furnace 2 and sends a signal to the control device. The control device controls the motor corresponding to the furnace door on this side to act, so as to control the furnace door 202 of the heating furnace to open. After the transport vehicle 20 enters the heating furnace, it sends a signal to the control device. The control device controls the furnace door 202 to close and then starts heating. After heating for a period of time, the furnace door at the rear of the heating furnace opens, and the transport vehicle moves out of the heating furnace.

[0036] The transport vehicle 20 is electrically driven and comes with its own control device. Its chassis is equipped with a battery 2002, an alarm 2003, and a charging port 2004. When the battery 2002 runs low, the control device controls the alarm 2003 to start alarming, reminding people that the transport vehicle needs to be charged. Under the control of its own control device, the transport vehicle is towed to a charging pile for charging, and the staff operates the charging gun on the charging pile to insert it into the charging port 2004 for charging. The wheels 2005 of the transport vehicle run on the track 1 and are driven by a motor. A placement platform 2001 is provided on the chassis of the transport vehicle, and the size of the placement platform 2001 matches the size of the notch at the bottom of the furnace body. When the furnace door is opened, the transport vehicle carries the material and moves to the lower part of the furnace body, and the placement platform 2001 just gets stuck in the notch at the bottom of the furnace body. After the furnace door descends, it covers and seals the channels of the front and rear walls of the furnace body, enclosing the material on the placement platform inside the furnace body. A sensor is provided on the transport vehicle 20. When the sensor senses an obstacle ahead, it sends a signal to the control device of the transport vehicle, and the control device of the transport vehicle controls the transport vehicle to stop.

[0037] An air inlet and an air outlet are provided on the heating furnace 2. The air inlet of the heating furnace 2 is connected to the three-stage heater 12 through a pipeline, and its air outlet is connected to the degumming condenser 6. The structure of the degumming condenser 6 adopts the condenser 18 as shown in Figure 3 The condenser 18 is an overall hollow cylinder. A condensing pipe 1807 passes through the middle of the cylinder. Both ends of the condensing pipe 1807 extend out of the end face of the condenser 18. One end is a cold gas inlet 1803, and the other end is a cold gas outlet 1804. A cooling gas for cooling the gas discharged from the heating furnace is introduced into the cold gas inlet 1803, and the cold gas outlet 1804 is used to discharge the used cooling gas. A hot gas inlet 1801 is provided on the side wall of the condenser close to the cold gas outlet 1804 for introducing the gas to be cooled output from the heating furnace 2, and a hot gas outlet 1802 is provided on the side wall of the condenser close to the hot gas outlet 1802 for discharging the cooled gas. The hot gas inlet 1801 and the hot gas outlet 1802 are connected through a spiral air duct 1806 inside the condenser 18, fully increasing the contact time and contact area between the gas to be cooled and the cooling gas and enhancing the cooling effect. A discharge pipe 1805 is provided on the condenser 18 at the cold gas outlet 1804 for discharging the condensed liquid. The discharge pipe 1805 is provided at the lowest position of the condenser 18. The discharge pipe 1805 penetrates the condenser 18, and the inner wall at the inlet of the discharge pipe 1805 is an inclined surface for facilitating the downward flow of the condensed liquid.

[0038] The air outlet of the heating furnace 2 is connected to the hot gas inlet of the degumming condenser 6 through a pipeline 5. After the colloid in the mixed gas entering the degumming condenser 6 condenses, it flows out from the discharge pipe. The hot gas outlet of the degumming condenser 6 is connected to the drainage condenser 7 through a pipeline 5. The drainage condenser 7 uses a condenser 18 with the same structure as the degumming condenser 6. The hot gas outlet of the degumming condenser 6 is connected to the hot gas inlet of the drainage condenser 7 through a pipeline 5. After the water vapor in the mixed gas entering the drainage condenser 7 condenses, it is discharged from the discharge pipe. The hot gas outlet of the drainage condenser 7 is connected to the air mixer 8 through a pipeline 5. The overall shape of the air mixer 8 is a hollow cylinder. Multiple partitions 804 are distributed on its inner wall. The partitions 804 are distributed in an interlaced manner, and the separated spaces communicate with each other. An air first inlet 801 and an air second inlet 802 are provided on the side wall near one end of the air mixer 8, and a mixed air outlet 803 is provided on the side wall near the other end of the air mixer 8. The air entering from the air first inlet 801 and the air second inlet 802 is fully mixed under the action of the partitions 804 and discharged from the mixed air outlet 803.

[0039] The hot gas outlet of the drainage condenser 7 is connected to the air first inlet 801 of the air mixer 8 through a pipeline 5 for introducing the condensed air. The air second inlet 802 of the air mixer is connected to the outside air through a pipeline 5. A fan 4 is provided on the pipeline 5 at this place to input external air into the air mixer 8. In addition, the fan 4 at this place also inputs air into the cold air inlet of the drainage condenser 7 through a pipeline 5. The input air has a lower temperature and can cool the hot air input from the hot gas inlet of the drainage condenser 7, and cause the water vapor in it to condense and be discharged. After the input air cools the hot air, it is discharged from the cold gas outlet of the drainage condenser 7. The cold gas outlet of the drainage condenser 7 is connected to the air first inlet 801 of the air mixer 8 through a pipeline 5. The gas mixed by the air mixer 8 is discharged through the mixed air outlet 803.

[0040] The mixed air outlet 803 of the air mixer 8 is connected to the dryer 9. The dryer 9 is connected to the air inlet of the cooling furnace 3 through a pipeline 5. The structure of the cooling furnace 3 is the same as that of the heating furnace 2. A second travel switch 14 is provided in front of the cooling furnace 3. When the second travel switch 14 senses the transport vehicle, it sends a signal to the motor of the cooling furnace through the control device, the furnace door of the cooling furnace opens, the transport vehicle enters the cooling furnace, the furnace door closes, and after cooling for a period of time, the rear furnace door of the cooling furnace opens, the transport vehicle moves out of the cooling furnace, and the rear furnace door closes. After being heated by the heating furnace, the ferrite core is transported by the transport vehicle to the cooling furnace to cool the ferrite core. The air entering from the air inlet of the cooling furnace cools the ferrite core, and the cooled air is discharged from the air outlet of the cooling furnace.

[0041] The air outlet of the cooling furnace 3 is connected to the primary heater 10 through a pipeline 5. The primary heater 10 uses an air heater 19. The air heater 19 includes a hollow cylinder, inside which a plurality of heating resistance wires 1903 are distributed. A cold air inlet 1901 is provided on the bottom side wall of the air heater 19, and a hot air outlet 1902 is provided on the top side wall. A temperature sensor 1904 is provided on the inner wall of the air heater 19 near the hot air outlet 1902 for monitoring the temperature of the output air. The temperature sensor 1904 is connected to a control device. When the temperature of the output air does not reach the required value, the control device controls the power supply of the heating resistance wire 1903 to increase the output power of the heating resistance wire 1903 and raise the heating temperature. The air outlet of the cooling furnace 3 is connected to the cold air inlet 1901 of the primary heater 10.

[0042] The primary heater 10 heats the input air to 130 °C. The hot air output from its hot air outlet is divided into two paths through the pipeline 5. One path is connected to the cold gas inlet of the degumming condenser 6. The 130 °C air is input into the degumming condenser 6, which can condense the gaseous glue in the degumming condenser 6 into liquid glue, and the liquid glue is discharged from the discharge pipe of the degumming condenser 6; the other path is connected to the cold air inlet 1901 of the secondary heater 11 through the pipeline 5. The cold gas outlet of the degumming condenser 6 is also connected to the cold air inlet of the secondary heater 11 through the pipeline 5. After the air passing through the degumming condenser 6 cools the gaseous glue, its own temperature is further increased. When it is mixed with the air heated by the primary heater 10 and sent into the secondary heater 11, it can reduce the temperature increased by the secondary heater 11, thereby saving energy.

[0043] The secondary heater 11 can raise the temperature of the air to 150 °C. The air passing through the secondary heater 11 can simultaneously evaporate the glue and moisture on the parts in the heating furnace, and then condense the glue and moisture respectively. This method can evaporate the glue and moisture simultaneously, avoiding incomplete removal of the glue and moisture due to improper temperature control when the glue and moisture are evaporated separately, which affects the quality of the final product. The hot air outlet of the secondary heater 11 is connected to the cold air inlet of the tertiary heater 12 through the pipeline 5. The hot air outlet of the tertiary heater is connected to the air inlet of the heating furnace 2 through the pipeline 5. When sintering the parts in the heating furnace 2, it is necessary to raise the temperature of the heating furnace to 1300 °C. At this time, the tertiary heater 12 is started to further heat the air passing through the tertiary heater 12. After the further heated air enters the heating furnace 2, it can accelerate the heating rate of the heating furnace and improve the heating efficiency.

[0044] A fan 4 is provided on the pipeline 5. The number and position of the fan 4 are set according to the length of the pipeline 5 and the types of equipment provided on the pipeline 5 to ensure that the air flow velocity of the pipeline 5 can meet the processing requirements.

[0045] Temperature sensors are also installed in the heating furnace and the cooling furnace to monitor the temperature in real time. The control device adjusts the air flow rate through the fan according to the temperature monitored by the cooling furnace, thereby adjusting the cooling temperature of the cooling furnace. The control device adjusts the heating temperature in the heating furnace through the heating element 210 according to the temperature in the heating furnace. The control device is communicatively connected to the temperature sensors, motors on the heating furnace and the cooling furnace, and the heating element on the heating furnace, and is communicatively connected to the temperature sensors of the primary heater 10, the secondary heater 11, and the tertiary heater 12, and the power supply of the heating resistance wire, and is communicatively connected to the first travel switch 13, the second travel switch 14, the control device of the transport vehicle, and the fan 4.

[0046] Working process: The transport vehicle 20 moves to the loading place 16. There is an obstacle at the loading place 16, and the transport vehicle 20 stops moving forward. After the bonded and formed parts are loaded, the obstacle is removed. The transport vehicle 20 moves along the track to the heating furnace 2. The transport vehicle 20 senses an obstacle set in front and stops running. At this time, the first travel switch 13 senses the transport vehicle 20 and sends a signal, and the front furnace door of the heating furnace 2 opens. The transport vehicle 20 senses that there is no obstacle in front and continues to move forward. After entering the heating furnace 2, the transport vehicle senses the furnace door at the rear of the heating furnace 2, stops running, and sends a signal. After receiving the signal, the control device sends an instruction to the heating furnace 2 to close the front furnace door; after heating for a period of time, the control device sends a signal to the heating furnace 2 to open its rear furnace door. The transport vehicle moves out of the heating furnace 2. After the transport vehicle completely moves out of the heating furnace, it sends a signal to the control device. The control device sends an instruction to close the rear furnace door of the heating furnace. When the transport vehicle 20 moves to the front side of the cooling furnace and stops moving forward, the second travel switch 14 senses the transport vehicle and sends a signal. The control device receives the signal and controls the front furnace door of the cooling furnace to open. After the transport vehicle 20 enters the cooling furnace, it stops running and sends a signal to the control device. The control device sends an instruction to the cooling furnace to close the front furnace door of the cooling furnace. After cooling for a period of time, the control device controls the rear furnace door of the cooling furnace to open. The transport vehicle moves out of the cooling furnace. After the transport vehicle completely moves out of the cooling furnace, the transport vehicle sends a signal to the control device. The control device controls the rear furnace door of the cooling furnace to close; the transport vehicle moves to the unloading place 15. There is an obstacle at the unloading place 15. The transport vehicle stops when it reaches here. The staff unloads the parts, and the empty transport vehicle moves to the loading place 16 to continue the next cycle.

[0047] During the heating process of the transport vehicle entering the heating furnace, first, the primary heater 10 and the secondary heater 11 are turned on. The air passing through the primary heater 10 enters the secondary heater 11 along one path and enters the degumming condenser 6 as cooling gas along the other path. The tertiary heater 12 is in the closed state. The air heated by the primary heater 10 and the secondary heater 11 enters the heating furnace 2 through the tertiary heater 12 and the corresponding pipelines, causing the moisture and colloid in the parts to evaporate. The mixed gas composed of the evaporated moisture, colloid, and air enters the degumming condenser 6. Since the heating temperature of the primary heater 10 is lower than the boiling point of the colloid, after the mixed gas passes through the degumming condenser 6, the colloid condenses into a liquid and is discharged from the discharge pipe 1805 at the lower side of the degumming condenser 6. The cooling gas passing through the degumming condenser enters the secondary heater 11 for heating. At this time, the cooling gas has risen to a certain temperature after cooling the mixed gas and is then sent to the secondary heater 11 for heating, which can reduce heating and save electricity. The mixed gas after removing the colloid enters the drain condenser 7. The cooling gas introduced into the drain condenser 7 is the cooling air at room temperature, which can cause the moisture in the mixed gas to condense and be discharged from the discharge pipe of the drain condenser. The mixed gas after removing moisture, the cooled cooling gas, and the outside air at room temperature enter the dryer 9 through the air mixer and are sent to the cooling furnace 3 after further removing moisture. When the primary heater 10 and the secondary heater 11 are turned on for a period of time and the moisture and colloid in the parts are removed, the control device turns on the tertiary heater 12 to further increase the temperature of the air and turns on the heating element 210 in the heating furnace to sinter the parts.

[0048] After a period of time, the sintered parts are sent to the cooling furnace. The gas mixed with a large amount of external air is close to room temperature, which can cool the parts in the cooling furnace 3 to room temperature. The gas passing through the cooling furnace 3 enters the primary heater 10 to realize the air circulation. And the temperature of the gas passing through the cooling furnace 3 increases while the parts are being cooled, making full use of the heat of the cooling furnace 3, making full use of the air flowing into the system, and processing the air to avoid waste of resources and protect the environment at the same time.

[0049] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent degumming system for ferrite cores, comprising a heating furnace and a cooling furnace, characterized in that: It also includes an orbit and a control device. A transport vehicle is movably arranged on the orbit. A heating furnace and a cooling furnace are arranged on the orbit. After placing the parts to be sintered on the transport vehicle, it is sent to the heating furnace for heating, and after heating is completed, it is sent to the cooling furnace for cooling. Outside the heating furnace, a degumming condenser, a drain condenser, an air mixer, a dryer, a cooling furnace, a primary heater, a secondary heater, and a tertiary heater are successively connected in series and communicated on the ventilation duct from the air outlet to the air inlet of the heating furnace. The drain condenser uses outside air as the cooling gas. The cooling gas discharged from the drain condenser is input into the air mixer. The air mixer mixes the outside air with the gas discharged from the heating furnace after removing the colloid and moisture. The gas output by the air mixer is dried by the dryer and then used to cool the parts in the cooling furnace. The cooling gas inlet of the degumming condenser is communicated with the outlet of the primary heater, and its cooling gas outlet is communicated with the inlet of the secondary heater. The gas output by the secondary heater enters the heating furnace to evaporate the moisture and colloid on the parts. The gas output by the tertiary heater enters the heating furnace to sinter the parts.

2. The intelligent debinding system for a ferrite magnetic core according to claim 1, wherein: The interior of the heating furnace is hollow. A passage for the transport vehicle and the parts carried thereon to pass through is arranged on the front and rear wall bodies of the heating furnace along the extending direction of the orbit. A notch matching the transport vehicle is arranged at the bottom of the heating furnace. When the transport vehicle runs below the heating furnace, the notch at the bottom of the heating furnace is closed. Furnace doors are slidably arranged up and down on the outer sides of the front and rear wall bodies of the heating furnace. After the furnace doors slide down, the two ends of the corresponding passages on the front and rear wall bodies of the heating furnace are closed. Sliders are arranged on both sides of each furnace door of the heating furnace. Each slider is slidably arranged on the corresponding slide rail on the heating furnace. Pulleys are arranged at the top and outside of the slide rail. The pulleys on the same slide rail are slidably arranged on the same pulling rope. One end of the pulling rope is fixed on the corresponding furnace door, and the other end is wound around the corresponding winding drum. The winding drum is driven by a motor. The motor drives the winding drum to release or wind the pulling rope on the winding drum, so as to lower or raise the furnace door. A temperature sensor is arranged in the heating furnace. The motor and the temperature sensor are communicatively connected to the control device.

3. The intelligent debinding system for a ferrite magnetic core according to claim 1, wherein: Heating elements for raising the furnace temperature are arranged in the heating furnace. The heating elements are communicatively connected to the control device.

4. The intelligent debinding system for a ferrite magnetic core according to claim 1, characterized in that: The interior of the degumming condenser is hollow, and a spiral air duct is arranged in the inner cavity. A condensing pipe is arranged through the degumming condenser at the central position of the spiral air duct. One end of the spiral air duct serves as the inlet of the gas to be cooled, and the other end serves as the outlet of the cooled gas. One end of the condensing pipe is used to input the cooling gas, and the other end outputs the cooling gas. A discharge pipe is arranged at the lowest position of the degumming condenser for discharging the condensed colloid.

5. The intelligent debinding system for a ferrite magnetic core according to claim 1, wherein: The interior of the air mixer is hollow, and a plurality of staggered partitions are arranged in the inner cavity. The partitions divide the inner cavity of the air mixer into a plurality of interconnected spaces. An air first inlet and an air second inlet are respectively arranged on the wall body near the end of the air mixer. The air first inlet is used to input the gas discharged from the heating furnace after removing the colloid and moisture. The air second inlet is communicated with the outside air. A mixed air outlet is arranged on the wall body near the other end of the air mixer. The mixed air outlet is communicated with the inlet of the dryer.

6. The intelligent debinding system for a ferrite magnetic core according to claim 1, characterized in that: The primary heater, secondary heater, and tertiary heater adopt air heaters. The air heaters are hollow inside, and multiple heating resistance wires are distributed in their inner cavities. The inlet of the primary heater is close to one end of the air heater, and the outlet is close to the other end of the air heater. A temperature sensor for detecting the temperature of the output gas is provided on the inner wall of the air heater near the outlet. The temperature sensor is communicatively connected to the control device, and the control device is communicatively connected to the power supply of the heating resistance wires for controlling the heating temperature of the heating resistance wires.

7. An intelligent debinding system for a ferrite magnetic core according to claim 1, characterized in that: A first travel switch is provided near the feed inlet of the heating furnace. The first travel switch is connected to the control device, and the control device sends an instruction to the heating furnace according to the signal of the first travel switch to control the opening of the furnace door on the heating furnace. A second travel switch is provided near the feed inlet of the cooling furnace. The second travel switch is connected to the control device, and the control device sends an instruction to the cooling furnace according to the signal of the second travel switch to control the opening of the furnace door on the cooling furnace.

8. The intelligent debinding system for a ferrite magnetic core according to claim 1, characterized in that: Sensors, a battery, a charging port, an alarm, and a self - contained control device are provided on the transport vehicle. The wheels of the transport vehicle are movably arranged on the track, and the motor on the transport vehicle drives the wheels. When the battery power is insufficient, the control device controls the alarm to sound an alarm and moves the transport vehicle to the charging pile. The sensor can identify obstacles ahead and send a signal to the self - contained control device to control the transport vehicle to stop. After the obstacle is removed, the self - contained control device controls the transport vehicle to continue moving. The self - contained control device of the transport vehicle is communicatively connected to the control device of the system.

9. The intelligent debinding system for a ferrite magnetic core according to claim 1, wherein: The heating furnace, debinding condenser, drain condenser, air mixer, dryer, cooling furnace, primary heater, secondary heater, and tertiary heater are connected by pipelines. A blower is provided on the pipeline, and the blower is communicatively connected to the control device.

10. The intelligent debinding system for a ferrite magnetic core according to claim 1, wherein: The track is a closed track, and a branch track is connected to the track. A charging pile for charging the transport vehicle is provided on one side of the branch track. A loading area is provided on one side of the track, and an unloading area is provided on the other side. The heating furnace and the cooling furnace are provided on one section of the track between the loading area and the unloading area.

Images