CN113584282A

CN113584282A - Heat treatment equipment for large casting production and processing based on resistance wire heating

Info

Publication number: CN113584282A
Application number: CN202110750715.9A
Authority: CN
Inventors: 徐国栋
Original assignee: Taizhou Hongcheng Electrical Equipment Co ltd
Current assignee: Taizhou Hongcheng Electrical Equipment Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2021-11-02

Abstract

The invention discloses heat treatment equipment for producing and processing large castings based on resistance wire heating in the technical field of casting production and processing, and when a feeding door of a casting placed in an internal heating furnace is closed, an adjusting plate can slide downwards to the upper end of the casting under the action of gravity, so that the space needing to be heated can be changed according to the size of the casting, and the heat waste and the energy waste caused by large useless space when the small casting is subjected to heat treatment are avoided; and at the in-process that the regulating plate moved down, the connecting plate can be along with together the downstream, and the removal of connecting plate can control the quantity of inserting the resistance wire, is favorable to utilizing regulating plate and connecting plate to come to adjust the access group number of resistance wire according to the size of foundry goods, and when heating less foundry goods, the resistance wire homoenergetic around the foundry goods heats to resistance wire far away does not heat, reduces thermal waste.

Description

Heat treatment equipment for large casting production and processing based on resistance wire heating

Technical Field

The invention relates to the technical field of casting production and processing, in particular to heat treatment equipment for large casting production and processing based on resistance wire heating.

Background

Heat treatment refers to a metal hot working process in which a material is heated, kept warm, and cooled in a solid state to obtain a desired structure and properties, and is one of important processes in mechanical manufacturing, and compared with other working processes, heat treatment generally does not change the shape and the overall chemical composition of a workpiece, but imparts or improves the usability of the workpiece by changing the microstructure inside the workpiece or changing the chemical composition of the surface of the workpiece.

Resistance wire among the current thermal treatment equipment, generally in order to satisfy specific heating temperature and heating effect, can parallelly connected have the multiunit resistance wire, generally can not adjust, if will adjust the heating power of resistance wire through adjusting voltage, the heating power of all resistance wires can change simultaneously, thereby lead to the power reduction of whole heating furnace, and the resistance wire group number that inserts when carrying out thermal treatment at every turn is the same, when carrying out thermal treatment to the foundry goods of less volume, it is far away apart from the foundry goods to have partial resistance wire, the heat of giving out can not be utilized, cause the waste, and the heating furnace space can not change, the foundry goods volume less has great dead space, further waste the heat, cause the waste of the energy.

Based on the heat treatment equipment, the heat treatment equipment for producing and processing the large castings based on resistance wire heating is designed to solve the problems.

Disclosure of Invention

The invention aims to provide heat treatment equipment for producing and processing large castings based on resistance wire heating, and aims to solve the problems that resistance wires in the existing heat treatment equipment are provided in the background art, generally, the resistance wires cannot be adjusted to meet specific heating temperature and heating effect, so the temperature heating in a heat treatment furnace is basically the same every time, the heating effect of the castings is reduced when the volumes of the castings are large, heat waste is caused when the volumes of the castings are small, the space of a heating furnace cannot be changed, large useless space is caused when the volumes of the castings are small, the heat is further wasted, and energy is wasted.

In order to achieve the purpose, the invention provides the following technical scheme: a heat treatment device for producing and processing large castings based on resistance wire heating comprises a heat treatment furnace, wherein an inner heating furnace is fixedly connected to the bottom of the inner wall of the heat treatment furnace, a distance is reserved between the inner heating furnace and the heat treatment furnace, a feeding port is jointly formed in the front sides of the heat treatment furnace and the inner heating furnace, a feeding door is connected in the feeding port in a vertically sliding mode, wiring boards are fixedly connected to the left side and the right side of the feeding port of the heat treatment furnace and the inner heating furnace, the two wiring boards are respectively connected with two wiring ends of an external power supply, the wiring boards are located on the two sides of the feeding door and are attached to the two sides of the feeding door, the upper end of each wiring board is divided into a plurality of sections which are not electrified mutually, a plurality of groups of resistance wires are fixedly connected between the two wiring boards, the resistance wires pass through the space between the inner heating furnace and the heat treatment furnace and wind the inner heating furnace in the middle, the top of interior heating furnace is equipped with the adjustment mechanism that can adjust interior heating furnace heating space size and access resistance wire group number according to the foundry goods size, interior heating furnace inside is equipped with the supporting mechanism who conveniently gets and puts the foundry goods, the front side of heat treatment door is equipped with the mechanism of shoveling that carries out the shovel to the foundry goods surface oxide layer after the heat treatment, the bottom of interior heating furnace is equipped with the clearance mechanism of clearing up iron fillings residue etc. in the interior heating furnace.

As a further scheme of the invention, the adjusting mechanism comprises an adjusting plate, the top of the inner heating furnace is provided with an opening, the adjusting plate is sealed on the surface of the inner wall of the inner heating furnace in a sliding manner, the front side of the upper end of the adjusting plate is fixedly connected with a connecting plate, first sliding grooves are formed in the inner wall of the inner heating furnace corresponding to the left and right positions of the connecting plate, the connecting plate can slide in the first sliding grooves, the connecting plate is a conductive plate, the front end of the connecting plate is attached to the two wiring boards, and the bottom of the rear end of the feeding door is fixedly connected with a driving block.

As a further scheme of the invention, the upper ends of the inner walls of the two first chutes are provided with limiting grooves corresponding to the positions of the wiring boards, the limiting grooves are elastically connected with limiting blocks through springs, the front ends of the limiting blocks extend into the wiring boards, the positions of the wiring boards corresponding to the limiting blocks are provided with abdicating grooves, the lower ends of the limiting blocks, which are positioned at the limiting groove parts, are inclined planes, the upper ends of the limiting blocks, which are positioned at the abdicating groove parts, are inclined planes, the limiting blocks are positioned at the lower positions of the connecting boards, the positions of the left side and the right side of the feeding door, which correspond to the abdicating grooves, are fixedly connected with extrusion blocks, the extrusion blocks slide in the abdicating grooves, and the bottoms of the extrusion blocks are inclined planes.

As a further scheme of the invention, the supporting mechanism comprises two second sliding chutes which are respectively arranged on the inner walls of the left and right sides of the inner heating furnace, sliding plates are respectively arranged in the two second sliding chutes in a sliding manner, a first supporting roller and a second supporting roller are jointly and rotatably connected between the two sliding plates, the first supporting roller is positioned on the front side of the second supporting roller, blocking blocks are fixedly connected to the front and back sides of the upper end of each sliding plate, guide grooves are arranged on the left and right inner walls of the inner heating furnace corresponding to the blocking blocks, the front sides of the guide grooves extend upwards, a first sliding block and a second sliding block are slidably connected between the corresponding blocking blocks in the guide grooves, the first sliding block is positioned on the front side of the second sliding block, and telescopic rods are hinged to the front ends of the first sliding block and the second sliding block; throw the bin gate and all seted up the third spout near telescopic link one end left and right sides, sliding connection has the restriction pole in the third spout, two the telescopic link is close to restriction pole one end and all articulates with the both ends of restriction pole.

As a further scheme of the invention, the shoveling mechanism comprises a shoveling box which is fixedly connected to the bottom position of the front side of the heat treatment box, a shoveling plate is arranged in the shoveling box, the rear end of the shoveling plate is in an upward arc shape, the left side and the right side of the shoveling plate are fixedly connected with first racks, the two first racks slide on the surface of the inner wall of the shoveling box through sliding rods, the inner walls of the left side and the right side of the shoveling box are rotatably connected with a first rotating gear corresponding to the position of the first rack, the first rotating gear is meshed with the first rack, a fourth sliding groove is formed in the position, corresponding to the first rotating gear, of the wiring board, a second rack is connected in the fourth sliding chute in a sliding manner, the upper end of the second rack is bent towards one side close to the feeding door, the second rack is meshed with the first rotating gear, and a fifth sliding chute is formed in the position, corresponding to the end position of the second rack, of the feeding door; the left end and the right end of the first supporting roller are fixedly connected with second rotating gears, the bottom of the rear side of the feeding door is fixedly connected with a third rack corresponding to the position of the second rotating gears, the third rack slides in the first sliding groove, the first sliding groove penetrates through the second sliding groove, and the second rotating gears can be meshed with the third racks.

As a further scheme of the invention, the cleaning mechanism comprises a cleaning block and a discharging box, the cleaning block slides on the bottom of the inner wall of the heat treatment furnace, the cleaning block is fixedly connected with the rear side of the sliding plate, the left side and the right side of the cleaning block are fixedly connected with first push rods, the surface of each first push rod is provided with a push groove, the discharging box is positioned at the bottom of the heat treatment furnace, the discharging box is communicated with the heat treatment furnace, the bottom of the inner wall of the heat treatment furnace is slidably connected with a sealing plate corresponding to the position of the discharging box, the left inner wall and the right inner wall of the inner heating furnace are fixedly connected with an arc-shaped guide plate together corresponding to the upper part of the front side of the sealing plate, the top of the sealing plate is fixedly connected with a toggle block, the toggle block is positioned in the push groove, the bottom of the sealing plate is fixedly connected with a push plate, the rear side of the discharging box is hinged with a discharging door, and the rear side of the heat treatment furnace corresponding to the discharging box is fixedly connected with a cooling water tank, and a cleaning door is arranged on the rear side of the cooling water tank.

As a further scheme of the invention, the bottom of the adjusting plate is fixedly connected with second pushing rods corresponding to the positions of the inner walls on the left and right sides of the inner heating furnace, the bottom of each second pushing rod is bent towards one side, the inner walls on the left and right sides of the inner heating furnace are provided with sixth sliding grooves corresponding to the positions of the bottoms of the second pushing rods, the sixth sliding grooves extend downwards to penetrate through the second sliding grooves, and fourth racks are slidably connected in the sixth sliding grooves; two ends of the second supporting roller penetrate through the sliding plate and then are fixedly connected with third rotating gears, elliptical grooves are formed in the inner walls of the two second sliding grooves corresponding to the positions of the third rotating gears and communicated with the sixth sliding groove, and the third rotating gears are meshed with the fourth rack.

Compared with the prior art, the invention has the beneficial effects that:

1. when the casting is placed in the internal heating furnace and the feeding door is closed, the adjusting plate can slide downwards under the action of gravity, the space of the internal heating furnace can be reduced, and the adjusting plate can finally contact with the upper end of the casting, so that the space needing to be heated can be changed according to the size of the casting, and the large useless space is avoided when the small casting is subjected to heat treatment, and the heat waste and the energy waste are avoided; and at the in-process that the regulating plate moved down, the connecting plate can be along with together the downstream, the connecting plate can slide down on the surface of wiring board, the resistance wire group that the connecting plate was crossed can cut off the power supply, can not continue to heat, be favorable to utilizing regulating plate and connecting plate to come the access group number of adjusting the resistance wire according to the size of foundry goods, when heating less foundry goods, foundry goods resistance wire homoenergetic all around heats, and the resistance wire far away does not heat, reduce thermal waste, the regulating plate moves the resistance wire that can make the regulating plate upper end and is close to the foundry goods that heats, the heat that makes the resistance wire produce can be make full use of, avoid causing the waste of heat and energy.

2. When the casting feeding door is driven to move upwards to the position of the limiting block, the connecting plate can cross the limiting block, the limiting block can limit the positions of the connecting plate and the adjusting plate, after a casting is placed into the inner heating furnace, the feeding door can be closed, the adjusting plate can keep the position unchanged, the space of the inner heating furnace can be kept stable before the feeding door is completely closed, and the situation that when the feeding door is not completely closed, the adjusting plate can move downwards to cause hot air in the inner heating furnace to be extruded out, heat loss is caused, heat waste is caused, and heating is needed again is avoided.

3. In the process of opening the feeding door, the sliding plate, the first supporting roller and the second supporting roller can move to the position of the feeding port, on one hand, the arrangement of the first supporting roller and the second supporting roller is favorable for reducing the shielded area when a casting is placed, and the problem that the casting is cracked due to uneven local heating is avoided, on the other hand, the sliding plate can move to the position of the feeding port when the feeding door is opened, so that a worker can conveniently take and place the casting, and the sliding plate can move the casting to the inside of the inner heating furnace, so that the casting is heated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of the present invention in general section;

FIG. 3 is a schematic view showing the structure of the internal heating furnace according to the present invention (hiding the heat treatment furnace and the charging door);

FIG. 4 is a schematic view of the inner heating furnace according to the present invention after being cut open;

FIG. 5 is a schematic structural view of the inner wall of the inner heating furnace according to the present invention;

FIG. 6 is a schematic structural view of the charging door and the wiring board after explosion;

FIG. 7 is a schematic view showing the connection relationship between the sliding plate and the telescopic rod according to the present invention;

FIG. 8 is a schematic structural view showing a connection relationship between the sliding plate, the first supporting roller, the third rotating gear and the fourth rack according to the present invention;

FIG. 9 is a schematic structural view of the connection of the shoveling plate, the first rack, the first rotating gear and the second rack according to the present invention (hidden shoveling box);

FIG. 10 is a schematic structural view of a feeding door of the present invention;

FIG. 11 is a schematic structural view of the position relationship between the limiting groove and the abdicating groove in the present invention;

fig. 12 is a schematic structural diagram of a limiting block in the invention.

In the drawings, the components represented by the respective reference numerals are listed below:

the device comprises a heat treatment furnace 1, an internal heating furnace 2, a feeding port 3, a feeding door 4, a wiring board 5, a resistance wire 6, an adjusting plate 7, a connecting plate 8, a first sliding groove 9, a driving block 10, a limiting groove 11, a limiting block 12, a yielding groove 13, an extrusion block 14, a second sliding groove 15, a sliding plate 16, a first supporting roller 17, a second supporting roller 18, a blocking block 19, a guiding groove 20, a first sliding block 21, a second sliding block 22, a telescopic rod 23, a third sliding groove 24, a limiting rod 25, a shoveling box 26, a shoveling plate 27, a first rack 28, a sliding rod 29, a first rotating gear 30, a fourth sliding groove 31, a second rack 32, a fifth sliding groove 33, a second rotating gear 34, a third rack 35, a cleaning block 36, a discharging box 3601, a first pushing rod 37, a pushing groove 38, a sealing plate 39, an arc-shaped guiding plate 40, a shifting block 41, a pushing plate 42, a discharging door 43, a cooling water tank 44, a cleaning door 45, a cleaning door 13, a cleaning box and a cleaning box, A second pushing rod 46, a sixth sliding chute 47, a fourth rack 48, a third rotating gear 49 and an elliptical groove 50.

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. 1-12, the present invention provides a technical solution: a heat treatment device for producing and processing large castings based on resistance wire heating comprises a heat treatment furnace 1, wherein the bottom of the inner wall of the heat treatment furnace 1 is fixedly connected with an inner heating furnace 2, a distance is reserved between the inner heating furnace 2 and the heat treatment furnace 1, a feeding port 3 is jointly arranged on the front sides of the heat treatment furnace 1 and the inner heating furnace 2, a feeding door 4 is vertically and slidably connected in the feeding port 3, wiring boards 5 are jointly and fixedly connected at the left side and the right side of the feeding port 3 corresponding to the heat treatment furnace 1 and the inner heating furnace 2, the two wiring boards 5 are respectively connected with two wiring ends of an external power supply, the wiring boards 5 are positioned at the two sides of the feeding door 4 and are attached to the two sides of the feeding door 4, the upper end of each wiring board 5 is divided into a plurality of sections which are not electrified mutually, a plurality of groups of resistance wires 6 are fixedly connected between the two wiring boards 5, the resistance wires 6 pass through the inner heating furnace 2 and the heat treatment furnace 1 and wind the inner heating furnace 2 in the middle, the top of the internal heating furnace 2 is provided with an adjusting mechanism which can adjust the size of the heating space of the internal heating furnace 2 and the number of groups of the connecting resistance wires 6 according to the size of the casting, a supporting mechanism which is convenient for taking and placing the casting is arranged inside the internal heating furnace 2, the front side of the heat treatment door is provided with a shoveling mechanism which shovels an oxide layer on the surface of the casting after heat treatment, and the bottom of the internal heating furnace 2 is provided with a cleaning mechanism which cleans scrap iron residues and the like in the internal heating furnace 2;

the adjusting mechanism comprises an adjusting plate 7, the top of the inner heating furnace 2 is opened, the adjusting plate 7 is sealed on the surface of the inner wall of the inner heating furnace 2 in a sliding manner, a connecting plate 8 is fixedly connected to the front side of the upper end of the adjusting plate 7, first sliding grooves 9 are formed in the inner wall of the inner heating furnace 2 corresponding to the left and right positions of the connecting plate 8, the connecting plate 8 can slide in the first sliding grooves 9, the connecting plate 8 is a current-conducting plate, the front end of the connecting plate 8 is attached to the two wiring boards 5, and the bottom of the rear end of the feeding door 4 is fixedly connected with a driving block 10;

the resistance wire 6 in the existing heat treatment equipment, generally in order to meet specific heating temperature and heating effect, will connect in parallel with the multiunit resistance wire 6, it is usually unable to be regulated, if need adjust the heating power of the resistance wire 6 through regulating the voltage, the heating power of all resistance wires 6 will change at the same time, thus lead to the power reduction of the whole heating furnace, and the number of the resistance wire 6 groups that insert is the same each time carrying on the heat treatment, while carrying on the heat treatment to the casting of smaller volume, some resistance wires 6 will be far away from the casting, the heat given off will not be utilized, cause the waste, and the heating furnace space can't change, the casting volume is smaller will have bigger dead space, further waste the heat, cause the waste of the energy, the invention needs to start the heat treatment equipment first before working, preheat the heat treatment equipment, after preheating, a worker controls the feeding door 4 to slide upwards through the controller to be opened, the adjusting plate 7 can move upwards under the action of the feeding door 4 and the driving block 10, then the worker utilizes the clamping vehicle to place a casting into the inner heating furnace 2, then the worker controls the feeding door 4 to be closed, the adjusting plate 7 can slide downwards under the action of gravity, the space of the inner heating furnace 2 can be reduced, the adjusting plate 7 can finally contact with the upper end of the casting, the space needing to be heated can be changed according to the size of the casting, the phenomenon that when a smaller casting is subjected to heat treatment, a large useless space is generated, heat waste and energy waste are caused is avoided, in the process that the adjusting plate 7 moves downwards, the connecting plate 8 can move downwards along with the connecting plate, the connecting plate 8 can slide downwards on the surface of the wiring board 5, the resistance wire 6 group crossed by the connecting plate 8 can be powered off, and heating cannot continue, the adjusting plate 7 and the connecting plate 8 are favorable for adjusting the access group number of the resistance wires 6 according to the size of the casting, when the smaller casting is heated, the resistance wires 6 around the casting can be heated, the resistance wires 6 far away are not heated, the waste of heat is reduced, the adjusting plate 7 can move to enable the resistance wires 6 at the upper end of the adjusting plate 7 to be close to the heated casting, the heat generated by the resistance wires 6 can be fully utilized, and the waste of heat and energy is avoided.

When the feeding door 4 is just closed, the adjusting plate 7 moves downwards along with the feeding door, heat in the inner heating furnace 2 is extruded by the adjusting plate 7, and heat waste is caused, as a further scheme of the invention, the upper ends of the inner walls of the two first sliding grooves 9 are provided with limiting grooves 11 corresponding to the positions of the wiring boards 5, the limiting grooves 11 are elastically connected with limiting blocks 12 through springs, the front ends of the limiting blocks 12 extend into the wiring boards 5, the wiring boards 5 are provided with abdicating grooves 13 corresponding to the positions of the limiting blocks 12, the lower ends of the limiting blocks 12 positioned in the limiting grooves 11 are inclined planes, the upper ends of the limiting blocks 12 positioned in the abdicating grooves 13 are inclined planes, the limiting blocks 12 are positioned below the connecting boards 8, the positions of the left side and the right side of the feeding door 4 corresponding to the abdicating grooves 13 are fixedly connected with extrusion blocks 14, the extrusion blocks 14 slide in the abdicating grooves 13, and the bottoms of the extrusion blocks 14 are inclined planes;

when the feeding door 4 is opened, the adjusting plate 7 moves upwards under the action of the driving block 10, the connecting plate 8 slides in the first sliding groove 9, when the connecting plate 8 slides to the position of the limiting block 12, the limiting block 12 is extruded into the limiting groove 11, then the connecting plate 8 can cross the limiting block 12, the limiting block 12 pops out to limit the positions of the connecting plate 8 and the adjusting plate 7, after a casting is placed into the inner heating furnace 2, the feeding door 4 is closed, the adjusting plate 7 keeps the position unchanged, the space of the inner heating furnace 2 is kept stable before the feeding door 4 is completely closed, the situation that when the feeding door 4 is not completely closed, the adjusting plate 7 moves downwards to cause hot air in the inner heating furnace 2 to be extruded, heat is dissipated, heat waste is caused, reheating is needed, when the feeding door 4 is completely closed, the extruding block 14 moves into the abdicating groove 13 and extrudes the limiting block 12, the limit block 12 releases the limit of the connecting plate 8, so that the adjusting plate 7 and the connecting plate 8 move downwards after the feeding door 4 is completely closed.

During heat treatment, a casting is directly placed in the internal heating furnace 2, on one hand, the contact surface of the casting and the inner wall of the heat treatment furnace 1 is heated unevenly, on the other hand, the temperature in the heating furnace 2 is higher, and the casting is difficult to place in the internal heating furnace 2, as a further proposal of the invention, the supporting mechanism comprises two second sliding chutes 15, the two second sliding chutes 15 are respectively arranged on the inner walls at the left side and the right side of the internal heating furnace 2, sliding plates 16 are respectively slid in the two second sliding chutes 15, a first supporting roller 17 and a second supporting roller 18 are jointly and rotatably connected between the two sliding plates 16, the first supporting roller 17 is positioned at the front side of the second supporting roller 18, blocking blocks 19 are fixedly connected at the front side and the rear side of the upper end of the sliding plate 16, guide grooves 20 are arranged at the positions of the left inner wall and the right inner wall of the internal heating furnace 2 corresponding to the blocking blocks 19, the front sides of the guide grooves 20 extend upwards, a first sliding block 21 and a second sliding block 22 are connected between the blocking blocks 19 in the guide grooves 20, the first sliding block 21 is positioned on the front side of the second sliding block 22, and the front ends of the first sliding block 21 and the second sliding block 22 are hinged with a telescopic rod 23; the left side and the right side of one end, close to the telescopic rods 23, of the feeding door 4 are respectively provided with a third sliding chute 24, the third sliding chutes 24 are connected with limiting rods 25 in a sliding mode, and one ends, close to the limiting rods 25, of the two telescopic rods 23 are hinged to two ends of the limiting rods 25;

during the opening process of the feeding door 4, the limiting rod 25 slides in the third sliding chute 24, when the limiting rod 25 slides to the bottom of the third sliding chute 24, the third sliding chute 24 drives the limiting rod 25 to move upwards together, then the telescopic rod 23 extends, when the telescopic rod 23 extends to the maximum, the telescopic rod 23 drives the first sliding block 21 and the second sliding block 22 to slide in the guide groove 20 together, the sliding plate 16 slides to the position of the feeding port 3 under the action of the first sliding block 21 and the blocking block 19, when the sliding plate 16 slides to the front end of the second sliding chute 15, the first sliding block 21 slides along the guide groove 20, the phenomenon that the telescopic rod 23 moves upwards along with the feeding door 4 is avoided, the second sliding chute 15 is blocked due to a short distance, the first supporting roller 17 and the second supporting roller 18 are brought to the position of the feeding port 3 under the action of the sliding plate 16, the casting is placed between the first supporting roller 17 and the second supporting roller 18, first backing roll 17 and second backing roll 18 are provided with the area that is sheltered from when being favorable to reducing the foundry goods and placing on the one hand, avoid the local uneven area that leads to the foundry goods fracture scheduling problem that is heated, and on the other hand sliding plate 16 can move dog-house 3 position when dog-house 4 is opened, makes things convenient for the workman to get of foundry goods and puts to sliding plate 16 can move the inside of delivering interior heating furnace 2 with the foundry goods, is convenient for being heated of foundry goods.

As a further scheme of the invention, when the casting is taken out of the internal heating furnace 2, the surface of the casting has an oxide layer, the oxide layer can fall off and splash during transportation, and the safety of workers is damaged, the shoveling mechanism comprises a shoveling box 26, the shoveling box 26 is fixedly connected to the bottom position of the front side of the heat treatment box, a shoveling plate 27 is arranged inside the shoveling box 26, the rear end of the shoveling plate 27 is in an upward arc shape, the left side and the right side of the shoveling plate 27 are fixedly connected with first racks 28, the two first racks 28 slide on the inner wall surface of the shoveling box 26 through sliding rods 29, the inner walls of the left side and the right side of the shoveling box 26 are rotatably connected with first rotating gears 30 corresponding to the positions of the first racks 28, the first rotating gears 30 are meshed with the first racks 28, a fourth sliding groove 31 is arranged corresponding to the position of the first rotating gears 30 of the wiring board 5, a second rack 32 is slidably connected in the fourth sliding groove 31, the upper end of the second rack 32 is bent to one side close to the feeding door 4, and the second rack 32 is meshed with the first rotating gears 30, the feeding door 4 is provided with a fifth chute 33 corresponding to the end part of the second rack 32; the left end and the right end of the first supporting roller 17 are fixedly connected with second rotating gears 34, the bottom of the rear side of the feeding door 4 is fixedly connected with third racks 35 corresponding to the positions of the second rotating gears 34, the third racks 35 slide in the first sliding chute 9, the first sliding chute 9 penetrates through the second sliding chute 15, and the second rotating gears 34 can be meshed with the third racks 35;

after the casting is subjected to heat treatment, in the process of opening the feeding door 4, the sliding plate 16, the first supporting roller 17 and the second supporting roller 18 move to the position of the feeding port 3; the end of the second rack 32 will move in the fifth chute 33, the fifth chute 33 is provided to facilitate the feeding gate 4 and the shoveling plate 27 to move successively, so as to prevent the feeding gate 4 and the shoveling plate 27 from moving simultaneously, the feeding gate 4 will affect the movement of the shoveling plate 27, when the end of the second rack 32 moves to the bottom of the fifth chute 33, the second rack 32 will move upwards under the action of the feeding gate 4 and the fifth chute 33, the first rotating gear 30 will rotate under the action of the second rack 32, the first rack 28 and the shoveling plate 27 will move inwards the feeding port 3 under the action of the first rotating gear 30 and the first rack 28, the sliding plate 16 will slide to the front end of the second chute 15 first, then the shoveling plate 27 will move to the bottom between the first supporting roller 17 and the second supporting roller 18, and the end of the shoveling plate 27 will abut against the bottom of the casting, then the feeding gate 4 will continue to move upwards, the position of the sliding plate 16 is kept unchanged, the oxide layer at the bottom of the casting is shoveled by the shoveling plate, the feeding door 4 can drive the third rack 35 to move together, when the third rack 35 moves to the position of the second rotating gear 34, the third rack 35 can act on the second rotating gear 34 to rotate, the first supporting roller 17 can rotate together, the casting can rotate together with the first supporting roller 17, the shoveling plate 27 can be used for shoveling the oxide layer on the surface of the whole casting, the oxide layer on the surface of the casting is prevented from falling and splashing when being transported, and the safety of workers is damaged.

In the process of heat treatment, partial oxygen in the inner heating furnace 2 acts with the surface of a casting, and a generated oxide layer falls off in the inner heating furnace 2, so that the cleaning is inconvenient to clean, as a further proposal of the invention, a cleaning mechanism comprises a cleaning block 36 and a discharge box 3601, the cleaning block 36 slides on the bottom of the inner wall of the heat treatment furnace 1, the cleaning block 36 is fixedly connected with the rear side of a sliding plate 16, the left side and the right side of the cleaning block 36 are fixedly connected with first push rods 37, the surface of the first push rods 37 is provided with push grooves 38, the discharge box 3601 is positioned at the bottom of the heat treatment furnace 1 and is communicated with the heat treatment furnace 1, the bottom of the inner wall of the heat treatment furnace 1 is slidably connected with a sealing plate 39 corresponding to the position of the discharge box 3601, the upper parts of the left inner wall and the right inner wall of the inner heating furnace 2 corresponding to the front side of the sealing plate 39 are fixedly connected with an arc-shaped guide plate 40 together, the top of the sealing plate 39 is fixedly connected with a shifting block 41, the toggle block 41 is positioned in the push groove 38, the bottom of the sealing plate 39 is fixedly connected with a push plate 42, the rear side of the discharge box 3601 is hinged with a discharge door 43, the rear side of the heat treatment furnace 1 corresponding to the discharge box 3601 is fixedly connected with a cooling water tank 44, and the rear side of the cooling water tank 44 is provided with a cleaning door 45;

after the casting heat treatment is finished, the feeding door 4 is opened, the sliding plate 16 can drive the cleaning block 36 to move together in the process that the sliding plate 16 is driven by the feeding door 4 to move towards the position of the feeding port 3, the cleaning block 36 can scrape an oxide layer at the bottom of the inner wall of the heat treatment furnace 1, the first push rod 37 can move along with the cleaning block 36, the toggle block 41 can move in the push groove 38, when the toggle block 41 moves to the end part of the push groove 38, the first push rod 37 can push the toggle block 41 to move together, the sealing plate 39 can move towards the front side under the action of the toggle block 41 and the first push rod 37, the discharge box 3601 can be opened, oxide layer residues falling off from the inner heating furnace 2 can fall into the discharge box 3601 under the action of the cleaning block 36, oxide layer residues on the surface of the arc-shaped guide plate 40 can also fall into the discharge box 3601, and the separated oxide layer residues can be cleaned after the heat treatment is finished each time, avoid the oxide layer that drops to pile up, and easy melting condenses under high temperature, be not convenient for clear up, new foundry goods is being placed afterwards, throw the bin gate 4 and close, clearance piece 36 can be moved to the rear side under the effect of sliding plate 16, closing plate 39 can be sealed row material case 3601 again in the effect of stirring piece 41 and first catch bar 37, catch plate 42 can be along with closing plate 39 removes together, release row bin gate 43 with the oxide layer residue in arranging material case 3601, make the oxide layer residue cool off in dropping to coolant tank 44, avoid the direct outside that falls of oxide layer residue of high temperature, can harm workman's safety.

When the casting is subjected to heat treatment, the position of the casting is unchanged all the time and is inconvenient to heat, as a further scheme of the invention, the positions of the bottom of the adjusting plate 7, which correspond to the positions of the inner walls on the left side and the right side of the inner heating furnace 2, are both fixedly connected with second push rods 46, the bottom of each second push rod 46 is bent towards one side, the positions of the inner walls on the left side and the right side of the inner heating furnace 2, which correspond to the positions of the bottoms of the second push rods 46, are provided with sixth sliding grooves 47, the sixth sliding grooves 47 extend downwards to penetrate through the second sliding grooves 15, and fourth racks 48 are slidably connected in the sixth sliding grooves 47; both ends of the second supporting roller 18 penetrate through the sliding plate 16 and are fixedly connected with third rotating gears 49, the inner walls of the two second sliding chutes 15 are provided with elliptical grooves 50 corresponding to the positions of the third rotating gears 49, the elliptical grooves 50 are communicated with a sixth sliding chute 47, and the third rotating gears 49 are meshed with a fourth rack 48;

after the casting is placed into the internal heating furnace 2 and the feeding door 4 is closed, the interior of the internal heating furnace 2 is in a sealed state, in the heating process, oxygen in the interior of the internal heating furnace 2 is gradually consumed, the adjusting plate 7 gradually moves downwards under the action of gravity and air pressure, the second push rod 46 moves along with the adjusting plate 7, then the adjusting plate 7 extrudes the fourth rack 48, the fourth rack 48 slides in the sixth sliding groove 47, the third rotating gear 49 rotates under the action of the fourth rack 48, the second supporting roller 18 rotates along with the rotation of the fourth rack 48, the casting rotates along with the rotation, the casting can slowly rotate in the heating process, uniform heating of the casting is facilitated, after the heat treatment is finished, the adjusting plate 7 and the second push rod 46 move upwards under the action of the feeding door 4, the bottom of the second push rod 46 acts on the top end of the fourth rack 48, restoring the fourth rack 48.

The working principle is as follows:

Claims

1. The utility model provides a large-scale foundry goods production and processing uses thermal treatment equipment based on resistance wire heating, includes heat treatment furnace (1), its characterized in that: the bottom of the inner wall of the heat treatment furnace (1) is fixedly connected with an inner heating furnace (2), a distance is reserved between the inner heating furnace (2) and the heat treatment furnace (1), the front sides of the heat treatment furnace (1) and the inner heating furnace (2) are jointly provided with a feed opening (3), a feed door (4) is connected in the feed opening (3) in a vertical sliding manner, wiring boards (5) are fixedly connected at the left side and the right side of the feed opening (3) corresponding to the heat treatment furnace (1) and the inner heating furnace (2), the two wiring boards (5) are respectively connected with two wiring ends of an external power supply, the wiring boards (5) are positioned at the two sides of the feed door (4) and are attached to the two sides of the feed door (4), the upper end of each wiring board (5) is divided into a plurality of sections which are not electrified mutually, and a plurality of groups of resistance wires (6) are fixedly connected between the two wiring boards (5), resistance wire (6) all pass through between interior heating furnace (2) and heat treatment furnace (1) and around interior heating furnace (2) in the centre, the top of interior heating furnace (2) is equipped with the adjustment mechanism that can adjust interior heating furnace (2) heating space size and insert resistance wire (6) group number according to the foundry goods size, interior heating furnace (2) inside is equipped with conveniently gets the supporting mechanism who gets the foundry goods, the front side of heat treatment door is equipped with the mechanism of shoveling that shovels the foundry goods surface oxide layer after the heat treatment, the bottom of interior heating furnace (2) is equipped with the clearance mechanism of clearing up iron fillings residue etc. in interior heating furnace (2).

2. The heat treatment equipment for producing and processing the large castings based on resistance wire heating as claimed in claim 1, wherein: adjustment mechanism includes regulating plate (7), the open-top of interior heating furnace (2), and the inner wall surface of heating furnace (2) including regulating plate (7) sliding seal, regulating plate (7) upper end front side fixedly connected with connecting plate (8), first spout (9) have all been seted up to interior heating furnace (2) inner wall correspondence connecting plate (8) left and right sides position, connecting plate (8) can slide in first spout (9), connecting plate (8) are the current conducting plate and connecting plate (8) front end and two wiring board (5) laminating, the rear end bottom fixedly connected with of throwing bin gate (4) drives piece (10).

3. The heat treatment equipment for producing and processing the large castings based on resistance wire heating as claimed in claim 2, wherein: the upper ends of the inner walls of the two first sliding grooves (9) are provided with limit grooves (11) corresponding to the positions of the wiring boards (5), a limiting block (12) is elastically connected in the limiting groove (11) through a spring, the front end of the limiting block (12) extends into the wiring board (5), the wiring board (5) is provided with a abdicating groove (13) corresponding to the position of the limiting block (12), the lower end of the limiting block (12) positioned at the limiting groove (11) is an inclined plane, the upper end of the part of the limiting block (12) positioned in the abdicating groove (13) is an inclined plane, the limiting block (12) is positioned below the connecting plate (8), the left side and the right side of the feeding door (4) are fixedly connected with an extrusion block (14) corresponding to the abdicating groove (13), the extrusion block (14) slides in the abdicating groove (13) and the bottom of the extrusion block (14) is an inclined surface.

4. The heat treatment equipment for producing and processing the large castings based on resistance wire heating as claimed in claim 2, wherein: the supporting mechanism comprises two second sliding chutes (15), the two second sliding chutes (15) are respectively arranged on the inner walls of the left side and the right side of the inner heating furnace (2), sliding plates (16) are respectively arranged in the two second sliding chutes (15), a first supporting roller (17) and a second supporting roller (18) are connected between the two sliding plates (16) in a co-rotating manner, the first supporting roller (17) is positioned on the front side of the second supporting roller (18), blocking blocks (19) are fixedly connected to the front side and the rear side of the upper end of the sliding plate (16), guide grooves (20) are formed in the positions of the left inner wall and the right wall of the inner heating furnace (2) corresponding to the blocking blocks (19), the front side of the guide grooves (20) extends upwards, a first sliding block (21) and a second sliding block (22) are connected between the corresponding blocking blocks (19) in the guide grooves (20) in a sliding manner, and the first sliding block (21) is positioned on the front side of the second sliding block (22), the front ends of the first sliding block (21) and the second sliding block (22) are hinged with telescopic rods (23); throw bin gate (4) and all seted up third spout (24) near telescopic link (23) one end left and right sides, sliding connection has limiting rod (25) in third spout (24), two telescopic link (23) are close to limiting rod (25) one end and all are articulated with the both ends of limiting rod (25).

5. The heat treatment equipment for producing and processing the large castings based on resistance wire heating as claimed in claim 4, wherein: the shoveling mechanism comprises a shoveling box (26), the shoveling box (26) is fixedly connected to the bottom of the front side of the heat treatment box, a shoveling plate (27) is arranged inside the shoveling box (26), the rear end of the shoveling plate (27) is in an upward arc shape, first racks (28) are fixedly connected to the left side and the right side of the shoveling plate (27), the two first racks (28) slide on the surface of the inner wall of the shoveling box (26) through sliding rods (29), first rotating gears (30) are rotatably connected to the inner walls of the left side and the right side of the shoveling box (26) corresponding to the positions of the first racks (28), the first rotating gears (30) are meshed with the first racks (28), a fourth sliding groove (31) is formed in the wiring board (5) corresponding to the position of the first rotating gears (30), and a second rack (32) is slidably connected to the fourth sliding groove (31), the upper end of the second rack (32) is bent towards one side close to the feeding door (4), the second rack (32) is meshed with the first rotating gear (30), and a fifth sliding groove (33) is formed in the position, corresponding to the end part of the second rack (32), of the feeding door (4); the material feeding device is characterized in that second rotating gears (34) are fixedly connected to the left end and the right end of the first supporting roller (17), third racks (35) are fixedly connected to the positions, corresponding to the second rotating gears (34), of the bottom of the rear side of the material feeding door (4), the third racks (35) slide in the first sliding grooves (9), the first sliding grooves (9) penetrate through the second sliding grooves (15), and the second rotating gears (34) can be meshed with the third racks (35).

6. The heat treatment equipment for producing and processing the large castings based on resistance wire heating as claimed in claim 4, wherein: the cleaning mechanism comprises a cleaning block (36) and a discharge box (3601), the cleaning block (36) slides to the bottom of the inner wall of the heat treatment furnace (1), the cleaning block (36) is fixedly connected with the rear side of the sliding plate (16), first push rods (37) are fixedly connected to the left side and the right side of the cleaning block (36), push grooves (38) are formed in the surfaces of the first push rods (37), the discharge box (3601) is positioned at the bottom of the heat treatment furnace (1) and communicated with the heat treatment furnace (1), a sealing plate (39) is slidably connected to the bottom of the inner wall of the heat treatment furnace (1) corresponding to the position of the discharge box (3601), an arc-shaped guide plate (40) is fixedly connected to the upper portion of the left side and the right side of the inner heating furnace (2) corresponding to the front side of the sealing plate (39), and a moving block (41) is fixedly connected to the top of the sealing plate (39), the stirring block (41) is located in the pushing groove (38), the bottom of the sealing plate (39) is fixedly connected with a pushing plate (42), the rear side of the material discharging box (3601) is hinged with a material discharging door (43), the heat treatment furnace (1) is fixedly connected with a cooling water tank (44) corresponding to the rear side of the material discharging box (3601), and the rear side of the cooling water tank (44) is provided with a cleaning door (45).

7. The heat treatment equipment for producing and processing the large castings based on resistance wire heating as claimed in claim 4, wherein: the bottom of the adjusting plate (7) is fixedly connected with second push rods (46) corresponding to the positions of the inner walls on the left side and the right side of the inner heating furnace (2), the bottom of each second push rod (46) is bent towards one side, sixth sliding grooves (47) are formed in the positions, corresponding to the positions of the bottoms of the second push rods (46), of the inner walls on the left side and the right side of the inner heating furnace (2), the sixth sliding grooves (47) extend downwards to penetrate through the second sliding grooves (15), and fourth racks (48) are connected in the sixth sliding grooves (47) in a sliding mode; the two ends of the second supporting roller (18) penetrate through the sliding plate (16) and then are fixedly connected with third rotating gears (49), elliptical grooves (50) are formed in the positions, corresponding to the third rotating gears (49), of the inner walls of the two second sliding grooves (15), the elliptical grooves (50) are communicated with a sixth sliding groove (47), and the third rotating gears (49) are meshed with a fourth rack (48).