CN115595428A - Workpiece uniformly-heated annealing furnace and annealing method thereof - Google Patents
Workpiece uniformly-heated annealing furnace and annealing method thereof Download PDFInfo
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- CN115595428A CN115595428A CN202211194598.3A CN202211194598A CN115595428A CN 115595428 A CN115595428 A CN 115595428A CN 202211194598 A CN202211194598 A CN 202211194598A CN 115595428 A CN115595428 A CN 115595428A
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- 238000000137 annealing Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 64
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 230000033228 biological regulation Effects 0.000 claims abstract description 8
- 230000008093 supporting effect Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 10
- 238000009529 body temperature measurement Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
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- Thermal Sciences (AREA)
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- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a workpiece uniformly-heated annealing furnace and an annealing method thereof, relates to the technical field of annealing furnaces, and aims to provide a workpiece uniformly-heated annealing furnace which has the advantages that pipe fittings are uniformly heated, the temperature regulation precision is high, and the quality of finished products is improved; the workpiece placing frame comprises a first frame plate and a second frame plate, a transmission mechanism is arranged between the first frame plate and the second frame plate, a plurality of pipe fittings are mounted on the transmission mechanism, and the pipe fittings move along with the transmission mechanism; the technical effect is that the transmission mechanism is utilized to drive the pipe fittings to transmit in the inner cavity of the furnace body, so as to ensure that the surfaces of the pipe fittings are heated uniformly, ensure the pipe fittings to be annealed sufficiently and improve the quality of finished pipe fittings; meanwhile, different pipe fittings are driven in the inner cavity of the furnace body, so that the heating wire is heated uniformly, the temperature of the pipe fittings is sensed by the temperature sensor, the heating wire is adjusted through the temperature values of the pipe fittings, and the accuracy of temperature adjustment is improved.
Description
Technical Field
The invention relates to the technical field of annealing furnaces, in particular to a workpiece uniformly-heated annealing furnace and an annealing method thereof.
Background
Annealing is a heat treatment process for metals, which refers to slowly heating the metal to a certain temperature, holding for a sufficient time, and then cooling at a suitable rate. The method aims to reduce hardness, improve machinability, eliminate residual stress, stabilize size, reduce deformation and crack tendency, refine grains, adjust tissue and eliminate tissue defects.
In the production of stainless steel, the stainless steel material needs to be annealed, but the temperature distribution inside the currently used annealing furnace is uneven, so that the annealing of a workpiece is uneven and insufficient in the annealing process, and the product quality is influenced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the annealing furnace and the annealing method thereof for uniformly heating the workpiece, wherein the pipe fitting is uniformly heated, the temperature regulation precision is high, and the quality of the finished product is improved.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a workpiece uniformly-heated annealing furnace comprises a furnace body, wherein a heating wire is arranged on the wall surface of an inner cavity of the furnace body, an inlet and an outlet are formed in one side of the furnace body, a temperature sensor is installed at the top of the furnace body and is a non-contact temperature sensor, a workpiece placing frame is further arranged inside the furnace body, and the workpiece placing frame can penetrate through the inlet and the outlet to enter and exit the inner cavity of the furnace body; the workpiece placing rack comprises a first rack plate and a second rack plate, a transmission mechanism is arranged between the first rack plate and the second rack plate, a plurality of pipe fittings are mounted on the transmission mechanism, and the pipe fittings move along with the transmission mechanism; a heating cavity is formed between the first frame plate and the inner wall of the furnace body and between the second frame plate and the inner wall of the furnace body, and the heating wire is arranged on the wall surface of the heating cavity; the transmission mechanism comprises a driving motor and a plurality of rotating shafts, and the rotating shafts are in transmission connection through transmission belts; the driving motor is positioned outside the heating cavity, one rotating shaft is a power shaft, the end part of the power shaft extends to the outer side of the heating cavity, and the driving motor is in transmission connection with the power shaft through a belt;
the device still includes: the temperature measuring module comprises the temperature sensor, the temperature sensor is arranged at the top of the inner cavity of the furnace body, and the temperature sensor is used for detecting the surface temperature of the pipe fitting and sending the measured temperature value to the temperature adjusting module;
the temperature adjusting module is electrically connected with the heating wire and the temperature sensor, and is used for receiving the temperature value sent by the temperature measuring module and feeding the temperature value back to the control module;
and the control module is used for generating a temperature control instruction containing control parameters based on a preset temperature control curve and sending the temperature control instruction to the temperature adjusting module.
Preferably, the furnace body is fixedly connected with a first baffle and a second baffle, a heating zone is formed between the first baffle and the second baffle, a channel is formed on the second baffle, the first frame plate passes through the channel to enter and exit the heating zone, connecting grooves are formed in the surfaces of the first baffle and the second baffle, and the first frame plate and the second frame plate respectively enter the connecting grooves of the first baffle and the second baffle to be in interference connection with the connecting grooves; the inner cavity of the furnace body further comprises a power area, and the driving motor is located in the power area.
Preferably, first frame plate and second frame plate are the wedge-shaped plate, the spread groove is the wedge-shaped groove, wedge-shaped plate and wedge-shaped groove interference fit.
Preferably, the power area is close to the inlet and outlet, the power area is provided with a supporting mechanism, the supporting mechanism comprises a supporting plate and a driving mechanism, the driving mechanism is used for driving the supporting plate to move, and the supporting plate blocks the second frame plate to move.
Preferably, the width of the transmission belt is matched with the length of the rotating shaft, the pipe fittings are uniformly distributed on the surface of the transmission belt, and the axial direction of the pipe fittings is perpendicular to the transmission direction of the transmission belt.
Preferably, the surface of drive belt is equipped with the mounting panel, two the opposite face of mounting panel all rotates the erection joint spare, two fixed cup joint one between the connecting piece the pipe fitting, the tip of connecting piece passes the mounting panel extends to the outside of mounting panel, and one of them the tip of connecting piece with through transmission chain drive connection, per two pass through between the axis of rotation the transmission chain is connected.
Preferably, the connecting piece comprises a connecting shaft and connecting sleeves, the end part of the connecting shaft is connected with the transmission chain through a shaft disc, and two ends of the pipe fitting respectively enter the inner cavities of the two connecting sleeves; the inside of adapter sleeve is equipped with high temperature resistant spring, the smooth panel of one end fixed connection of high temperature resistant spring, the both ends of pipe fitting respectively with two the inside smooth panel of installation headgear is contradicted.
Preferably, a feeding groove is formed in the top of the connecting sleeve and communicated with the inner cavity of the connecting sleeve, and the pipe fitting penetrates through the feeding groove and enters the inner cavity of the connecting sleeve to be fixed.
The annealing method of the annealing furnace with the workpiece uniformly heated comprises the annealing furnace with the workpiece uniformly heated, and also comprises the following steps of:
pushing the workpiece placing frame to pass through the inlet and the outlet to enter the inner cavity of the furnace body until a second frame plate of the workpiece placing frame enters the inside of the connecting groove and is in interference connection with the connecting groove;
the first frame plate and the first baffle plate, and the second frame plate and the second baffle plate form sealing plates, and the heating cavity is sealed by the two sealing plates;
collecting the temperature parameters of the pipe fitting by using a temperature measurement module, and sending the measured temperature value to a temperature regulation module;
the temperature adjusting module feeds the received temperature value back to the control module and adjusts the temperature of the inlet and the outlet according to a temperature control instruction of the control module;
the control module is used for generating a temperature control instruction containing control parameters based on a preset temperature control curve and sending the temperature control instruction to the temperature adjusting module.
Preferably, the temperature parameter comprises a plurality of surface temperature values of the pipe;
the control module calculates the average value of a plurality of temperature values, generates a temperature control instruction containing control parameters based on a preset temperature control curve, and sends the temperature control instruction to the temperature adjusting module.
(III) advantageous effects
Compared with the prior art, the invention provides a workpiece uniformly-heated annealing furnace and an annealing method thereof, and the annealing furnace has the following beneficial effects:
the transmission mechanism is utilized to drive the pipe fitting to transmit in the inner cavity of the furnace body, so that the surface of the pipe fitting is uniformly heated, the full annealing of the pipe fitting is ensured, and the quality of a finished pipe fitting product is improved; meanwhile, different pipe fittings are driven in the inner cavity of the furnace body and are heated uniformly, the temperature of the pipe fittings is sensed by the temperature sensor, the heating wire is adjusted by the temperature value of the pipe fittings, the accuracy of temperature adjustment is improved, the product quality is further improved, the control module generates a temperature parameter which is required to be adjusted and controlled by the next node according to a preset temperature control curve, the curve change of the temperature inside the furnace body is ensured, the accuracy of temperature adjustment and control is ensured, the heat treatment quality of the pipe fittings is ensured, and the pipe fittings are prevented from being influenced by sudden too large or too small temperature.
Drawings
FIG. 1 is a schematic cross-sectional front view of one embodiment of the present invention;
FIG. 2 is a schematic cross-sectional front view of another embodiment of the present invention;
FIG. 3 is a schematic side cross-sectional view of an embodiment of the present invention;
fig. 4 is a schematic view of the installation of the pipe fitting of the present invention.
In the figure: 1. a furnace body; 2. a heating wire; 3. an inlet and an outlet; 4. a temperature sensor; 5. a first frame plate; 6. a second frame plate; 7. a pipe fitting; 8. a drive motor; 9. a rotating shaft; 10. a transmission belt; 11. a belt; 12. a first baffle plate; 13. a second baffle; 14. a channel; 15. connecting grooves; 16. a support plate; 17. mounting a plate; 18. a connecting shaft; 19. connecting sleeves; 20. a drive chain; 21. a high temperature resistant spring; 22. a smooth panel; 23. a feed chute; 24. a worm gear; 25. a worm; 26. a threaded rod; 27. a limiting rod; 28. mounting grooves; 29. a connecting rod; 30. a movable sleeve; 31. a first gear; 32. a second gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, an annealing furnace with uniformly heated workpieces comprises a furnace body 1, wherein a heating wire 2 is arranged on the wall surface of an inner cavity of the furnace body 1, an inlet and an outlet 3 are formed in one side of the furnace body 1, a temperature sensor 4 is installed at the top of the furnace body 1, the temperature sensor 4 is a non-contact temperature sensor 4, a workpiece placing rack is further arranged inside the furnace body 1, and the workpiece placing rack can pass through the inlet and the outlet 3 to enter and exit the inner cavity of the furnace body 1; the workpiece placing rack comprises a first frame plate 5 and a second frame plate 6, a transmission mechanism is arranged between the first frame plate 5 and the second frame plate 6, a plurality of pipe fittings 7 are installed on the transmission mechanism, and the pipe fittings 7 move along with the transmission mechanism; a heating cavity is formed between the first frame plate 5 and the second frame plate 6 and the inner wall of the furnace body 1, and the heating wire 2 is arranged on the wall surface of the heating cavity; the transmission mechanism comprises a driving motor 8 and a plurality of rotating shafts 9, and the rotating shafts 9 are in transmission connection through a transmission belt 10; the driving motor 8 is positioned outside the heating cavity, one rotating shaft 9 is a power shaft, the end part of the power shaft extends to the outer side of the heating cavity, and the driving motor 8 is in transmission connection with the power shaft through a belt 11;
it should be noted that in the scheme, the pipe fitting 7 can be directly installed outside the rotating shafts 9 and rotate along with the rotating shafts 9, one of the rotating shafts 9 is a power shaft, the driving motor 8 drives the power shaft to rotate, the driving belt 10 is connected with the power shaft and the other rotating shaft 9, and the other rotating shafts 9 are driven by the driving belt 10;
the pipe fitting 7 can also be arranged on the surface of the transmission belt 10, at the moment, the width of the transmission belt 10 is lengthened to be matched with the length of the rotating shaft 9, and the pipe fitting 7 moves along with the transmission belt 10, so that the pipe fitting 7 is heated uniformly;
referring to fig. 2 and 3, a first baffle 12 and a second baffle 13 are fixedly connected to a furnace body 1, a heating area is formed between the first baffle 12 and the second baffle 13, a channel 14 is formed on the second baffle 13, a first frame plate 5 passes through the channel 14 and enters and exits the heating area, connecting grooves 15 are formed on the surfaces of the first baffle 12 and the second baffle 13, and the first frame plate 5 and the second frame plate 6 respectively enter the connecting grooves 15 of the first baffle 12 and the second baffle 13 and are in interference connection with the connecting grooves; the inner cavity of the furnace body 1 also comprises a power area, and the driving motor 8 is positioned in the power area.
It should be noted that, in order to facilitate the second frame plate 6 to pass through the passage 14, in the present solution, the bottoms of the first frame plate 5 and the second frame plate 6 are provided with sliding bar blocks, the bottom of the inner cavity of the furnace body 1 is provided with sliding grooves, the sliding bar blocks enter the inside of the sliding grooves and are slidably connected with the sliding bar blocks, and the sliding grooves extend along the transmission direction of the second frame plate 6 and pass through the passage 14;
in this embodiment, the first baffle plate 12 and the first frame plate 5, and the second baffle plate 13 and the second frame plate 6 form a sealing plate to seal the heating cavity and prevent heat from flowing into the power region, the driving motor 8 is located in the power region, and the sealing plate is arranged to protect the driving motor 8 and prevent high temperature from affecting the use of the driving motor 8; meanwhile, as the temperature of the power area is normal, the driving motor 8 can be of a common type, so that the processing cost is reduced; moreover, in order to ensure that the second frame plate 6 is connected with the outer side of the second baffle 13, the length and the height of the second frame plate 6 are both greater than those of the channel 14;
further, in order to improve the heat insulation effect of the sealing plate, the sealing plate is made of a heat-resistant steel plate;
it should be noted that in this embodiment, because the first baffle 12, the first frame plate 5, the second baffle 13, and the second frame plate 6 all form a sealing plate to ensure that the heating cavity is sealed and to block heat from flowing outwards, the workpiece placement frame can directly enter and exit the inner cavity of the furnace body 1 without additionally arranging a door body, thereby simplifying the equipment entering and exiting procedure and improving the workpiece processing efficiency;
wherein, first frame plate 5 and second frame plate 6 are the wedge board, and spread groove 15 is the wedge groove, wedge board and wedge groove interference fit.
It should be noted that the space of the wedge-shaped groove gradually increases from inside to outside, and the smaller surface of the wedge-shaped plate enters first until the wedge-shaped groove and the wedge-shaped groove are connected into a whole;
referring to fig. 3, the power area is arranged near the inlet/outlet 3, the power area is provided with a support mechanism, the support mechanism comprises a support plate 16 and a driving mechanism, the driving mechanism is used for driving the support plate 16 to move, and the support plate 16 blocks the second frame plate 6 from moving;
it should be noted that the initial position of the support plate 16 and the driving mechanism are both located outside the transmission path of the second frame plate 6, so as to ensure that the workpiece placing frame can move normally;
specifically, the driving mechanism may be a driving cylinder, a supporting plate 16 is installed at a movable end of the driving cylinder, after the second frame plate 6 moves to the inside of the connecting groove 15, the driving cylinder is powered on to drive the supporting plate 16 to move, in order to improve the supporting effect, the outer side of the second frame plate 6 and the outer side of the second baffle 13 are located on the same vertical line, the supporting plate 16 moves along the outer side surfaces of the two, and after stabilization, thrust is provided for the second frame plate 6 to prevent the second frame plate 6 from moving; in order to further improve the stability of the second frame plate 6, moving grooves can be formed in the second baffle 13 and the outer side of the second frame plate 6, the moving grooves are matched with the supporting plate 16, and the supporting plate 16 partially enters the moving grooves and slides along the wall surface of the groove body;
in this embodiment, a power mechanism is additionally provided to separately drive the support plate 16 to move;
the driving motor 8 can also be used for providing power, at the moment, a worm wheel 24 is fixedly installed on an output shaft of the driving motor 8, a worm 25 is arranged on the outer side of the worm wheel, two ends of the worm 25 are respectively and rotatably connected with the top and the bottom of the furnace body 1, a threaded rod 26 and a limiting rod 27 are further arranged in an inner cavity of the power area, the threaded rod 26 and the limiting rod 27 are distributed on two sides of a transmission route of the second frame plate 6, a movable sleeve 30 between the threaded rod 26 and the limiting rod 27 is connected with the supporting plate 16, a first gear 31 and a second gear 32 are fixedly sleeved on the outer portions of the worm 25 and the threaded rod 26 in a distributed and sleeved mode, and the first gear 31 is meshed with the second gear 32;
it should be noted that, in the second gear 32 outside the threaded rod 26, teeth are distributed at a distance around the outer side of the gear body, and a hollow tooth area is further arranged outside the gear body, when in use, after the support plate 16 moves to the outer side of the second frame plate 6, the teeth of the second gear 32 are separated from the teeth of the first gear 31 until the pipe fitting 7 is quenched, the driving motor 8 rotates reversely, and the first gear 31 rotates reversely, so that the second gear 32 is driven to rotate, and the support plate 16 is ensured to return to the original position;
the scheme also comprises another embodiment, the threaded rod 26 is a bidirectional threaded rod, at the moment, the number of the support plates 16 is two, at the moment, the bottom of the power area is provided with a mounting groove 28, the support plate 16 positioned below enters the inside of the mounting groove 28, the top of the support plate and the bottom wall of the inner cavity of the furnace body 1 are positioned on the same horizontal line, and at the moment, the support plate 16 is in transmission connection with the threaded rod 26 through a connecting rod 29 and a movable sleeve 30;
in order to further improve the uniformity of heating of the tube member 7, in this embodiment, the width of the belt 10 is determined to be adapted to the length of the rotating shaft 9, the tube members 7 are uniformly distributed on the surface of the belt 10, and the axial direction of the tube members 7 is perpendicular to the driving direction of the belt 10.
The surface of drive belt 10 is equipped with mounting panel 17, and the opposite face of two mounting panels 17 all rotates the installation connecting piece, and a pipe fitting 7 is fixed cup jointed between two connecting pieces, and the tip of connecting piece passes mounting panel 17 and extends to the outside of mounting panel 17, and passes through drive chain 20 transmission connection between the tip of one of them connecting piece and the axis of rotation 9, connects through drive chain 20 between per two connecting pieces.
Specifically, the connecting piece comprises a connecting shaft 18 and connecting sleeves 19, the end part of the connecting shaft 18 is connected with a transmission chain 20 through a shaft disc, and two ends of the pipe fitting 7 respectively enter the two connecting sleeves 19;
when the device is operated, the driving motor 8 is electrified to operate to drive the rotating shaft 9 to rotate, the rotating shaft 9 and the end part of the connecting piece are driven by the transmission chain 20 to rotate the connecting piece, so that the pipe fitting 7 is driven to rotate, the surface heating uniformity of the pipe fitting 7 is further improved, and the heat treatment quality of the pipe fitting 7 is improved;
in order to fully utilize the space inside the furnace body 1, the invention also provides another embodiment, as shown in fig. 2, two groups of transmission mechanisms can be arranged, a driving motor 8 can be independently arranged between the two groups of transmission mechanisms for driving operation, and the two groups of transmission mechanisms can also be driven by one driving motor 8 and driven by a transmission chain;
because two sets of drive mechanism are at the transmission in-process, its one side pipe fitting 7 distance that is close to each other is close, and the two influences each other, reduces the effect of middle zone to pipe fitting 7, consequently, further prescribes a limit to it: the pipe fittings 7 between the two groups of transmission mechanisms are arranged in a staggered mode along the vertical direction, so that only one pipe fitting 7 at the same horizontal position is subjected to the thermal action in the transmission process;
specifically, in order to ensure that the pipe fittings 7 in the two groups of transmission mechanisms do not influence each other, the pipe fittings 7 in the two groups of transmission mechanisms are distributed in a vertically staggered manner at the initial installation position, and the two groups of transmission mechanisms rotate synchronously at the same rotating speed;
further, the connecting piece comprises a connecting shaft 18 and connecting sleeves 19, the end part of the connecting shaft 18 is connected with a transmission chain 20 through a shaft disc, and two ends of the pipe fitting 7 respectively enter the inner cavities of the two connecting sleeves 19; the inside of adapter sleeve 19 is equipped with high temperature resistant spring 21, and the smooth panel 22 of one end fixed connection of high temperature resistant spring 21, the both ends of pipe fitting 7 respectively with two smooth panels 22 of installation headgear inside contradict.
In order to improve the stability of the pipe fitting 7 after installation, a high-temperature resistant spring 21 is arranged in the connecting sleeve 19, and the pipe fitting 7 is extruded at two sides by the elasticity of the spring, so that the pipe fitting 7 is prevented from moving and falling in the movement process;
furthermore, a feeding groove 23 is formed in the top of the connecting sleeve 19, the feeding groove 23 is communicated with the inner cavity of the connecting sleeve 19, and the pipe 7 penetrates through the feeding groove 23 and enters the inner cavity of the connecting sleeve 19 to be fixed.
It should be noted that the two connecting sleeves 19 symmetrically arranged with respect to the transmission direction of the transmission belt 10 are a set of installation members, the distance between the groove walls of the two feeding grooves 23 on the set of installation members is less than the axial length of the pipe 7, and the distance between the groove wall of one of the feeding grooves 23 and the cavity wall of the other connecting sleeve 19 is greater than the axial length of the pipe 7;
when the device is used, one end of the pipe fitting 7 penetrates through the feeding groove 23 to enter the inner cavity of the connecting sleeve 19, the pipe fitting 7 is pushed by external force to compress the high-temperature-resistant spring 21 until the other end of the pipe fitting 7 can penetrate through the feeding groove 23 without being blocked by the top wall of the connecting sleeve 19, when the other end of the pipe fitting 7 enters into the feeding groove 23, the external force is withdrawn, at the moment, the compressed high-temperature-resistant spring 21 pushes the pipe fitting 7 to move towards the other high-temperature-resistant spring 21 and is applied with pressure until the two sides of the pipe fitting 7 are balanced in stress, at the moment, the two ends of the pipe fitting 7 both enter into the inner cavity of the connecting sleeve 19, and the top wall of the connecting sleeve 19 blocks the pipe fitting 7 from penetrating through the feeding groove 23 to fall off;
and, because this simple structure, the material loading procedure is convenient, and during the use, the external force of utilization not only can be for manual promotion, still can utilize mechanical automation to promote, improves whole work efficiency greatly.
The invention also provides an annealing method of the annealing furnace with the workpiece uniformly heated, which comprises the following steps of:
pushing the workpiece placing frame to pass through the inlet and outlet 3 to enter the inner cavity of the furnace body 1 until the second frame plate 6 of the workpiece placing frame enters the inside of the connecting groove 15 and is in interference connection with the connecting groove;
the first frame plate 5 and the first baffle plate 12, and the second frame plate 6 and the second baffle plate 13 form sealing plates, and the heating cavity is sealed by the two sealing plates;
the temperature measurement module is used for collecting the temperature parameters of the pipe fitting 7 and sending the measured temperature values to the temperature regulation module;
the temperature adjusting module feeds back the received temperature value to the control module and adjusts the temperature of the inlet and outlet 3 according to a temperature control instruction of the control module;
the control module is used for generating a temperature control instruction containing control parameters based on a preset temperature control curve and sending the temperature control instruction to the temperature adjusting module.
Specifically, the temperature control curve is artificially predetermined, and after the control module receives a temperature value signal, the temperature to be regulated and controlled by the next node is determined according to the temperature control curve, so that a temperature regulation and control instruction is sent, the temperature curvilinearization change is ensured, the temperature regulation and control precision is ensured, the heat treatment quality of the pipe fitting 7 is ensured, and meanwhile, the pipe fitting 7 is prevented from being influenced by suddenly too large or too small temperature.
Further, the temperature parameters include surface temperature values of the plurality of pipes 7;
the control module calculates an average value of the temperature values, generates a temperature control instruction containing control parameters based on a preset temperature control curve, and sends the temperature control instruction to the temperature adjusting module.
The working principle is as follows: the transmission mechanism is utilized to drive the pipe fitting 7 to transmit in the inner cavity of the furnace body 1, so that the surface of the pipe fitting 7 is uniformly heated, the pipe fitting 7 is fully annealed, and the quality of a finished product of the pipe fitting 7 is improved; meanwhile, different pipe fittings 7 are transmitted in the inner cavity of the furnace body 1 and are heated uniformly, the temperature of the pipe fittings 7 is sensed by the temperature sensor 4, the heating wire 2 is adjusted by the temperature value of the pipe fittings 7, the accuracy of temperature adjustment is improved, the product quality is further improved, furthermore, the control module generates a temperature parameter which is required to be adjusted and controlled by the next node according to a preset temperature control curve, the curvilinearization change of the internal temperature of the furnace body 1 is ensured, the temperature adjustment and control accuracy is ensured, the heat treatment quality of the pipe fittings 7 is ensured, and the phenomenon that the temperature is suddenly too large or too small is prevented, so that the pipe fittings 7 are influenced.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications based on the present invention to solve the same technical problems and achieve the same technical effects are all covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides a work piece thermally equivalent formula annealing stove, includes furnace body (1), the inner chamber wall of furnace body (1) is equipped with heater strip (2), exit (3) are seted up to one side of furnace body (1), top installation temperature sensor (4) of furnace body (1), its characterized in that: the temperature sensor (4) is a non-contact temperature sensor (4), a workpiece placing frame is further arranged inside the furnace body (1), and the workpiece placing frame can pass through the inlet and the outlet (3) to enter and exit the inner cavity of the furnace body (1); the workpiece placing frame comprises a first frame plate (5) and a second frame plate (6), a transmission mechanism is arranged between the first frame plate (5) and the second frame plate (6), a plurality of pipe fittings (7) are mounted on the transmission mechanism, and the pipe fittings (7) move along with the transmission mechanism; a heating cavity is formed between the first frame plate (5) and the second frame plate (6) and the inner wall of the furnace body (1), and the heating wire (2) is arranged on the wall surface of the heating cavity; the transmission mechanism comprises a driving motor (8) and a plurality of rotating shafts (9), and the rotating shafts (9) are in transmission connection through a transmission belt (10); the driving motor (8) is positioned outside the heating cavity, one rotating shaft (9) is a power shaft, the end part of the power shaft extends to the outer side of the heating cavity, and the driving motor (8) is in transmission connection with the power shaft through a belt (11);
the device still includes: the temperature measurement module comprises the temperature sensor (4), the temperature sensor (4) is installed at the top of the inner cavity of the furnace body (1), and the temperature sensor (4) is used for detecting the surface temperature of the pipe (7) and sending the detected temperature value to the temperature regulation module;
the temperature adjusting module is electrically connected with the heating wire (2) and the temperature sensor (4), and is used for receiving the temperature value sent by the temperature measuring module and feeding the temperature value back to the control module;
and the control module is used for generating a temperature control instruction containing control parameters based on a preset temperature control curve and sending the temperature control instruction to the temperature adjusting module.
2. The lehr of claim 1, wherein: the furnace body (1) is fixedly connected with a first baffle (12) and a second baffle (13), a heating area is formed between the first baffle (12) and the second baffle (13), a channel (14) is formed in the second baffle (13), the first frame plate (5) passes through the channel (14) to enter and exit the heating area, connecting grooves (15) are formed in the surfaces of the first baffle (12) and the second baffle (13), and the first frame plate (5) and the second frame plate (6) respectively enter the connecting grooves (15) of the first baffle (12) and the second baffle (13) to be in interference connection with the connecting grooves (15); the inner cavity of the furnace body (1) further comprises a power area, and the driving motor (8) is located in the power area.
3. The annealing furnace according to claim 2, wherein: first frame plate (5) and second frame plate (6) are the wedge board, spread groove (15) are the wedge groove, wedge board and wedge groove interference fit.
4. The annealing furnace according to claim 2, wherein: the power district is close to exit (3) sets up, the power district sets up supporting mechanism, supporting mechanism includes backup pad (16) and actuating mechanism, actuating mechanism is used for driving backup pad (16) remove, backup pad (16) block second frame plate (6) remove.
5. The annealing furnace according to claim 4, wherein: the width of the transmission belt (10) is matched with the length of the rotating shaft (9), the pipe fittings (7) are positioned on the surface of the transmission belt (10) and are uniformly distributed, and the axial direction of the pipe fittings (7) is vertical to the transmission direction of the transmission belt (10).
6. The annealing furnace according to claim 5, wherein: the surface of drive belt (10) is equipped with mounting panel (17), two the opposite face of mounting panel (17) all rotates erection joint spare, two fixed cup joint one between the connecting piece pipe fitting (7), the tip of connecting piece passes mounting panel (17) extend to the outside of mounting panel (17), and one of them the tip of connecting piece with connect through driving chain (20) transmission between axis of rotation (9), per two pass through between the connecting piece driving chain (20) are connected.
7. The lehr of claim 6, wherein: the connecting piece comprises a connecting shaft (18) and connecting sleeves (19), the end part of the connecting shaft (18) is connected with the transmission chain (20) through a shaft disc, and two ends of the pipe fitting (7) respectively enter the inner cavities of the two connecting sleeves (19); the inside of adapter sleeve (19) is equipped with high temperature resistant spring (21), the smooth panel of one end fixed connection (22) of high temperature resistant spring (21), the both ends of pipe fitting (7) respectively with two smooth panel (22) of installation headgear inside contradicts.
8. The lehr of claim 7, wherein: the top of the connecting sleeve (19) is provided with a feeding groove (23), the feeding groove (23) is communicated with the inner cavity of the connecting sleeve (19), and the pipe fitting (7) penetrates through the feeding groove (23) to enter the inner cavity of the connecting sleeve (19) to be fixed.
9. A method for annealing a workpiece uniformly-heated annealing furnace, comprising the annealing furnace for uniformly-heating a workpiece according to any one of claims 1 to 8, comprising the steps of:
pushing the workpiece placing rack to pass through the inlet and outlet (3) and enter the inner cavity of the furnace body (1) until a second frame plate (6) of the workpiece placing rack enters the inside of the connecting groove (15) and is in interference connection with the connecting groove;
the first frame plate (5), the first baffle plate (12), the second frame plate (6) and the second baffle plate (13) form sealing plates, and the heating cavity is sealed by the two sealing plates;
the temperature measurement module is used for collecting the temperature parameters of the pipe (7) and sending the measured temperature values to the temperature regulation module;
the temperature adjusting module feeds back the received temperature value to the control module, and adjusts the temperature of the inlet and outlet (3) according to a temperature control instruction of the control module;
the control module is used for generating a temperature control instruction containing control parameters based on a preset temperature control curve and sending the temperature control instruction to the temperature adjusting module.
10. The method of adjusting the temperature of an annealing furnace according to claim 9, wherein:
the temperature parameters comprise surface temperature values of a plurality of the pipes (7);
the control module calculates the average value of a plurality of temperature values, generates a temperature control instruction containing control parameters based on a preset temperature control curve, and sends the temperature control instruction to the temperature adjusting module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211194598.3A CN115595428A (en) | 2022-09-28 | 2022-09-28 | Workpiece uniformly-heated annealing furnace and annealing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211194598.3A CN115595428A (en) | 2022-09-28 | 2022-09-28 | Workpiece uniformly-heated annealing furnace and annealing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115595428A true CN115595428A (en) | 2023-01-13 |
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ID=84843991
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211194598.3A Withdrawn CN115595428A (en) | 2022-09-28 | 2022-09-28 | Workpiece uniformly-heated annealing furnace and annealing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115595428A (en) |
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2022
- 2022-09-28 CN CN202211194598.3A patent/CN115595428A/en not_active Withdrawn
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Application publication date: 20230113 |
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