CN113736978A

CN113736978A - Saw blade high-temperature pressurizing tempering furnace

Info

Publication number: CN113736978A
Application number: CN202111024181.8A
Authority: CN
Inventors: 冯浩华; 闫刚; 韩涛; 侯路通
Original assignee: Shandong Heixuanfeng Saw Industry Co ltd
Current assignee: Shandong Heixuanfeng Saw Industry Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2021-12-03

Abstract

The invention discloses a saw blade high-temperature pressurized tempering furnace, which belongs to the technical field of tempering furnace devices; the tempering furnace is provided with a tempering furnace body and a supporting structure, the supporting structure is arranged on the outer side of the tempering furnace body, a heating device is arranged in the tempering furnace body, the heating device is uniformly arranged along the inner side of the tempering furnace body, the tempering furnace body is connected with a furnace door, a furnace door lifting device and a tempering furnace control system, a plurality of pressure plate oil cylinders are arranged at the upper end of the tempering furnace body, the pressure plate oil cylinders are connected with the supporting structure, the bottom of each pressure plate oil cylinder is connected with a pressure rod, the bottom end of each pressure plate oil cylinder penetrates through the upper end of the tempering furnace body and extends downwards into the tempering furnace body, and the bottom end of each pressure rod is connected with a pressure plate; the tempering furnace body is connected with a circulating fan, and an air guide plate assembly is arranged on the inner side of the tempering furnace body. The invention has the advantages of simple structure, convenient operation, high heating efficiency, uniform heating, less heat loss, high-efficiency heat preservation performance and good saw blade tempering effect.

Description

Saw blade high-temperature pressurizing tempering furnace

Technical Field

The invention relates to the technical field of tempering furnace devices, in particular to a saw blade high-temperature pressurizing type tempering furnace.

Background

The tempering furnace is an energy-saving periodic operation type tempering furnace, and is used for tempering common metal parts in air and quenching, annealing and aging heat treatment of light alloy parts such as aluminum alloy die castings, pistons, aluminum plates and the like.

Saw blades are a general term for thin circular cutters for cutting solid materials, and can be divided into: a diamond saw blade for stone cutting; a high speed steel saw blade for cutting metal material; the hard alloy saw blade is used for cutting solid wood, furniture, artificial boards, aluminum alloy, aluminum profiles, radiators, plastics, plastic steel and the like, and a tempering furnace is needed to process the saw blade in the production process of the saw blade.

The existing saw blade tempering furnace has poor tempering process, uneven heat dissipation and low tempering efficiency, thereby causing low product qualification rate in the later period and increasing the production cost.

Disclosure of Invention

The invention provides a high-temperature pressurizing type tempering furnace for saw blades, aiming at the technical problems in the prior art.

In order to solve the technical problems, the tempering furnace is provided with a tempering furnace body and a supporting structure, wherein the supporting structure is arranged on the outer side of the tempering furnace body, a heating device is arranged in the tempering furnace body, the heating device is uniformly arranged along the inner side of the tempering furnace body, the tempering furnace body is connected with a furnace door, a furnace door lifting device and a tempering furnace control system, a plurality of platen oil cylinders are arranged at the upper end of the tempering furnace body and connected with the supporting structure, the bottom of each platen oil cylinder is connected with a pressure rod, the bottom end of each pressure rod penetrates through the upper end of the tempering furnace body and extends downwards into the tempering furnace body, and the bottom end of each pressure rod is connected with a platen;

the tempering furnace body is connected with a circulating fan, an air guide plate assembly is arranged on the inner side of the tempering furnace body and connected with the circulating fan, and a saw blade placing device is arranged at the bottom of the inner side of the tempering furnace body; the inner side of the tempering furnace body is provided with a heat insulation structure, a sealing device is arranged between the heat insulation structure and the pressure rod, the air guide plate assembly is an air guide structure consisting of a porous plate and a plurality of air guide plates, and the porous plate is evenly provided with a plurality of air duct holes.

Preferably, four oil cylinders and four pressure rods are arranged, and a pressure plate is arranged at the bottom end of each pressure rod; the bottom of depression bar is provided with the annular groove, and the annular groove is inwards sunken along the radial direction of depression bar.

Preferably, the annular groove on each compression bar is connected with the pressure plate through a bearing bush, the bottom end of each compression bar is of a downward convex V-shaped arc body structure, and the top of each pressure plate is provided with a groove structure which is matched and connected with the bottom end of each compression bar.

Preferably, sealing device is equipped with the seal cover, and the seal cover is equipped with flange, flange lid and seal cover bottom plate, and flange, adjacent setting of flange lid just set up in the upper end of seal cover, and the seal cover bottom plate sets up the lower extreme at the seal cover, and flange lid are connected through a plurality of bolt and nut connection structure.

Preferably, heat preservation cotton is arranged between the flange and the sealing sleeve bottom plate, a connecting pipe is arranged on the periphery of the heat preservation cotton, and the heat preservation cotton is made of aluminum silicate fibers.

Preferably, the tempering furnace body comprises a tempering furnace bottom plate, a tempering furnace supporting plate and a tempering furnace top cover, and a supporting frame is arranged at the upper end of the tempering furnace body; the saw blade placing device is provided with a saw blade supporting platform and a plurality of platform supporting columns arranged at the lower end of the saw blade supporting platform.

Preferably, the furnace door is a pressurized furnace door, a sealing and pressing device is arranged on the furnace door, the furnace door is in sealing connection with the tempering furnace body through the sealing and pressing device, and the sealing and pressing device is provided with a pneumatic push rod, a connecting rod mechanism and a sealing pressing strip.

Preferably, the heating device is provided with a plurality of heating pipes which are uniformly distributed around the inner side of the tempering furnace body and arranged at the inner side of the heat insulation structure; still be provided with a plurality of jib in the tempering furnace body, jib and insulation construction are connected and are set up.

Preferably, the air deflector assembly is provided with a plurality of hinge air deflectors, two side air deflectors, two rear air deflectors, a porous plate and four corner air deflectors, the hinge air deflectors are arranged on the two side air deflectors and respectively arranged on two sides of the tempering furnace body, the rear air deflectors are arranged at the rear end of the tempering furnace body, the four corner air deflectors are arranged at end corners of the rear end face of the tempering furnace body and are connected with the rear air deflectors, and the porous plate is arranged on the rear end face of the tempering furnace body.

Preferably, a plurality of circular air duct holes are uniformly formed in the porous plate, the circulating fan is fixedly arranged on the tempering furnace body through a circulating fan fixing frame, and a U-shaped air duct is formed in the inner side of the tempering furnace body and surrounds the heating device through air of the circulating fan.

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

the tempering furnace is safe and reliable in structure and convenient to operate, the tempering furnace is manufactured by adopting a plurality of layers of spaces, the inside of the tempering furnace is folded and embedded by stainless steel plates, the appearance is flat and smooth, the middle layer is provided with module heat-insulation cotton as a fireproof heat-insulation wall, and the full-fiber structure is adopted, so that the heat-insulation performance of the furnace body is improved, the energy can be saved, and the production cost is reduced; the heating pipe is arranged in the heat preservation cotton and serves as a heating part of the furnace body, under the action of circulating air sucked by the strong convection circulating fan, a U-shaped air channel is formed around the heating pipe and the wind baffle assembly arranged in the furnace body to form a hot air circulating device, the circulating air circularly flows in the furnace body and reaches a part to be tempered at the bottom, and the circulating air is circularly circulated in the way, so that the temperature of the hot circulating air is stable and uniform, the heat efficiency of the furnace body is high, the tempering efficiency of the tempering furnace is high, and the tempering effect is good; the multilayer sealing structure arranged on the furnace body further increases the heat insulation performance of the furnace body, reduces the heat loss in the furnace body and realizes high-efficiency heat insulation performance; the tempering furnace has the advantages of firm integral structure, light and reliable manufacturing materials, better heat resistance and cold resistance compared with the traditional structure, good thermal stability, long service life and convenient maintenance of the furnace body.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is a schematic top view of the present invention;

FIG. 4 is a schematic structural view of the compression bar of the present invention;

fig. 5 is a schematic structural view of an air deflection assembly according to the present invention;

FIG. 6 is a schematic cross-sectional view of A-A of FIG. 5 according to the present invention;

FIG. 7 is a schematic cross-sectional view of B-B of FIG. 5 according to the present invention;

FIG. 8 is an enlarged partial view of FIG. 5 at C;

FIG. 9 is an enlarged partial schematic view of FIG. 5 at D in accordance with the present invention;

FIG. 10 is a schematic structural view of a side air deflector of the present invention;

FIG. 11 is a schematic view of the rear air deflector of the present invention;

FIG. 12 is a schematic view of the vent holes of the rear air deflector of the present invention;

FIG. 13 is a schematic view of the structure of a multi-well plate according to the present invention;

FIG. 14 is a schematic structural view of a four-corner air deflector of the present invention;

FIG. 15 is a schematic view of an air duct in the tempering furnace body according to the present invention;

figure 16 is a schematic view of the structure of the sealing sleeve of the invention.

The symbols in the drawings illustrate that:

1. a tempering furnace body; 101. a tempering furnace bottom plate; 102. a tempering furnace supporting plate; 103. tempering the furnace top cover; 104. a platform support post; 2. a support frame; 3. a furnace door; 4. a heat generating tube; 5. a platen cylinder; 6. a pressure lever; 61. an annular groove; 7. a platen; 8. bearing bushes; 9. a circulating fan; 10. a circulating fan fixing frame; 11. an air deflection assembly; 12. a side air guide plate; 13. a rear air deflector; 131. a circular vent hole; 132. circular arc-shaped vent holes; 133. a first vent hole; 134. a second vent hole; 135. a third vent hole; 14. a perforated plate; 141. a circular air duct hole; 15. closing the plate; 16. a perforated plate fixing plate; 17. a hinge air deflector; 18. a four-corner air deflector; 19. fixing a steel plate; 20. a first pull rod; 21. a boom; 22. a second fixed steel plate; 23. a second pull rod; 24. an air duct; 25. heat preservation cotton; 26. a fiber mat; 27. sealing sleeves; 271. a flange; 272. a flange cover; 273. a seal cartridge base plate; 274. a bolt and nut connection structure; 275. second heat preservation cotton; 276. and (6) taking over.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Referring to fig. 1-3, the present invention provides a saw blade high temperature pressurized tempering furnace, which comprises a tempering furnace body 1, wherein a support frame 2 is arranged on the periphery of the tempering furnace body 1, and the tempering furnace body 1 is supported and connected by the support frame 2; the front end of the tempering furnace body 1 is of an open structure, a furnace door 3 is connected onto the tempering furnace body, a furnace door lifting device is arranged on the furnace door 3, and the opening and closing of the furnace door 3 are controlled through the furnace door lifting device; heating tubes 4 are arranged around the inner part of the tempering furnace body 1, and the heating tubes 4 are uniformly distributed along the inner periphery of the tempering furnace body 1.

A pressure plate oil cylinder 5 is arranged at the upper end of the tempering furnace body 1, the pressure plate oil cylinder 5 is arranged at the upper end of the tempering furnace body 1 through a support frame 2, a pressure rod 6 is connected to the bottom of the pressure plate oil cylinder 5, and the pressure plate oil cylinder 5 controls the pressure rod 6 to move up and down; the bottom of depression bar 6 passes in tempering furnace body 1's upper end and downwardly extending to tempering furnace body 1, and the bottom fixedly connected with pressure disk 7 of depression bar 6, the downside that is located pressure disk 7 is provided with the saw bit and is and puts the device, and the saw bit is and puts the device setting in the bottom of tempering furnace body 1 inboard, and the saw bit is and puts the device and set up with pressure disk 7 is relative.

In the embodiment, four platen oil cylinders 5 are uniformly distributed at the central position of the upper end of the tempering furnace body 1, the four platen oil cylinders 5 are arranged on the support frame 2 in a square shape, and the bottom end of each platen oil cylinder is connected with a pressure rod 6; the pressing rod 6 is of a long rod-shaped structure, the upper end of the pressing rod 6 is fixedly connected with the pressure plate oil cylinder 5, and the bottom end of the pressing rod 6 is fixedly connected with the pressure plate 7 through the bearing bush 8; as shown in fig. 4, the bottom end of the pressing rod 6 is provided with an annular groove 61, the annular groove 61 is recessed inwards along the radial direction of the pressing rod 6, the bottom end of the pressing rod 6 is a downward protruding V-shaped arc structure, the upper end of the bearing bush 8 is clamped in the annular groove 61 at the bottom of the pressing rod 6, and the lower end of the bearing bush 8 is fixedly connected with the pressure plate 7 through a plurality of connecting bolts.

Furthermore, in this embodiment, the pressure plate 7 is a convex disc-shaped structure, the upper end of the pressure plate 7 is provided with a groove structure which is connected with the bottom end of the pressure rod 6 in a matching manner, and the bottom end of the pressure plate 7 is a disc-shaped structure.

In the embodiment, the circulating fan 9 is connected to the outer side of the rear end of the tempering furnace body 1, the circulating fan 9 is fixedly arranged on the tempering furnace body 1 through a circulating fan fixing frame 10, the rotating direction of the circulating fan 9 is right-handed, namely clockwise rotation seen from the motor end, air is conveyed into the furnace body through the circulating fan 9, and the convection motion of the air in the furnace body is enhanced; an air deflector assembly 11 is arranged on the inner side of the tempering furnace body 1, and the air deflector assembly 11 is connected with the circulating fan 9; the tempering furnace comprises a tempering furnace body 1, and is characterized in that a heat insulation structure is further arranged on the periphery of the inner side of the tempering furnace body 1, supporting layers are arranged inside and outside the heat insulation structure, a heating pipe 4 is arranged on the inner side of the heat insulation structure, and an air deflector assembly 11 is arranged on the inner side of the heat insulation structure.

As shown in fig. 5, 6, 8, and 9, in the present embodiment, the air guide plate assembly 11 is an air guide device for adjusting the vertical blowing angle of the air blown by the circulation fan 9, and the air guide plate assembly 11 is provided with a side air guide plate 12, a rear air guide plate 13, and a porous plate 14; the side air guide plates 12 are of a square plate-shaped structure, and two side air guide plates are arranged and are respectively arranged at two sides of the inner end of the tempering furnace body 1; the rear air deflector 13 is integrally of a U-shaped plate structure, is arranged at the rear end of the tempering furnace body 1, and two side edges of the rear air deflector are respectively connected with the side air deflector 12 through seal plates 15; the porous plate 14 is arranged at the rear end of the tempering furnace body 1 and is arranged on the inner side of the rear air deflector 13 through a plurality of bolt-nut connecting assemblies and a porous plate fixing plate 16, and the porous plate 14 is arranged in parallel with the rear end face of the rear air deflector 13; the outer end faces of the two side air guide plates 12 are connected with a plurality of hinge air guide plates 17, each hinge air guide plate 17 is horizontally arranged, and the hinge air guide plates 17 are vertically arranged at equal intervals along the vertical direction of the tempering furnace body 1; the tempering furnace body 1 is provided with four corner air deflectors 18 on the rear end face, the four corner air deflectors 18 are four, and the four corner air deflectors 18 are arranged at four end corners of the rear air deflector 13 and are fixedly connected with the rear air deflector 13 through fixing steel plates 19.

In this embodiment, the side wind guide plates 12 are connected with first pull rods 20, each side wind guide plate 12 is connected with 10 first pull rods 20, the first pull rods 20 are arranged outside the two side wind guide plates 12, the two first pull rods 20 are arranged in parallel at a certain interval along the horizontal direction of the side wind guide plates 12, the five first pull rods 20 are arranged in parallel from top to bottom at a certain interval along the vertical direction of the side wind guide plates 12, so that two columns of ten first pull rods 20 are arranged on the side wind guide plates 12 arranged on each side, and twenty first pull rods 20 are arranged in the tempering furnace body 1. The upper end face of the side face of each side air deflector 12, the side air deflector 12 and the rear air deflector 13 is connected with five suspenders 21, the five suspenders 21 are arranged in parallel at certain intervals along the horizontal direction of the upper end face of the side air deflector 12, the lower ends of the suspenders 21 are fixedly connected with the side air deflector 12 and the rear air deflector 13, and the upper ends of the suspenders 21 penetrate through the heat insulation structure and are fixedly connected with the outer end face of the heat insulation structure.

As shown in fig. 7, in the present embodiment, the number of the hinge air deflectors 17 connected to the end of each side air deflector 12 is the same, and is 15 to 20, and the hinge air deflectors are vertically arranged at the end of the side air deflector 12 at equal intervals; the outer side of the hinge air deflector 17 is connected with a second pull rod 23 through a second fixed steel plate 22, five second pull rods 23 are arranged on the hinge air deflector 17 arranged on each side, and ten second pull rods 23 are arranged on two sides.

Furthermore, as shown in fig. 10, in the present embodiment, the side air deflectors 12 and the rear air deflector 13 are each provided with a plurality of mounting holes connected to the tie bars and the hanger rods 21 for mounting the tie bars and the hanger rods.

Furthermore, as shown in fig. 11 and 12, in this embodiment, the inner end of the circulating fan 9 passes through the heat insulating structure and is disposed adjacent to the rear end surface of the rear air deflector 13, and faces the central position of the rear air deflector 13; the rear end face of the rear air deflector 13 is provided with a circular vent hole 131 for receiving air blown out by the circulating fan 9, six circular arc vent holes 132 with different radiuses and lengths are arranged at the outer end of the circular vent hole 131 and along the peripheral direction of the circular vent hole 131, the six circular arc vent holes 132 are spirally arranged on the rear air deflector 13 by taking the circular vent hole 131 as the center, the six circular arc vent holes 132 are the same in pairs, and the same circular arc vent holes 132 are arranged in pairs by taking the circular vent hole 131 in the middle as the center.

In this embodiment, the circular arc-shaped vent holes 132 disposed on the rear air deflector 13 are sequentially a first vent hole 133, a second vent hole 134, and a third vent hole 135 from large to small according to the length of an arc, along the clockwise direction of the rear air deflector 13, the circular arc-shaped vent holes 132 are sequentially a first vent hole 133, a second vent hole 134, a third vent hole 135, a first vent hole 133, a second vent hole 134, and a third vent hole 135, and the circular arc-shaped vent holes 132 all extend from the periphery of the circular vent hole 131 to the four sides of the rear air deflector 13; and the first ventilation hole 133 and the second ventilation hole 134 that adjacent set up intersect in the same point in circular ventilation hole 131 periphery, every first ventilation hole 133, second ventilation hole 134, the inboard starting point in third ventilation hole 135 all sets up on the same circumference in circular ventilation hole 131 periphery, and the contained angle between the intersection line of two first ventilation holes 133 that set up relatively and the intersection line of two third ventilation holes 135 that set up relatively is 60, the setting of ventilation hole, through the inspiratory air of circulating fan 9, the circulation is reciprocal and is flowed in tempering furnace body 1, the circulated air temperature is more even more.

As shown in fig. 13, in the present embodiment, a plurality of circular air duct holes 141 are uniformly formed on the porous plate 14, the porous plate 14 has a square plate-shaped structure, the plurality of circular air duct holes 141 are arranged at equal intervals along the horizontal direction and the vertical direction of the porous plate 14, and the circular air duct holes 141 are used for the inflow of air; the perforated plate fixing plate 16 is a U-shaped plate structure, and the left and right ends of the perforated plate 14 are fixed to the inner side of the rear air guide plate 13 through the perforated plate fixing plate 16.

Furthermore, as shown in fig. 14, in the present embodiment, the four-corner air guiding plate 18 is an integral trapezoid plate-shaped structure composed of three parts, wherein the length of the middle plate is longest, the lengths of the two side plates are shorter, the included angles between the two side plates and the middle plate are both 135 °, the two side plates are both connected with the fixed steel plates 19, the fixed steel plates 19 are closely attached to the two side plates, and the four-corner air guiding plate 18 is connected with the end corner of the rear air guiding plate 13 through the fixed steel plates 19.

As shown in fig. 15, in this embodiment, by providing the circulating fan 9 and the air deflector assembly 11, under the cooperation of the air deflector assembly 11, U-shaped air ducts 24 can be formed around the heating tubes on both sides inside the tempering furnace body 1, and the air sucked into the tempering furnace is absorbed by the circulating fan 9 as a starting point, and the air ducts 24 concentrate the absorbed air, and then surround the heating tubes 4 disposed on both sides to uniformly heat the air, and then blow the air onto the saw blade to be tempered; because the air duct 24 has no welding point and is connected in a U-shaped hollow way, the air duct 24 can be ensured not to deform and the wind power is not blocked during heating, the air convection motion in the tempering furnace is increased, hot air uniformly flows in the tempering furnace under the action of the air deflector assembly 11 and circularly reciprocates, circulating air is formed in the furnace body, the temperature of the circulating air is stable and uniform, the tempering efficiency of the saw blade is high, and the tempering effect is good.

As shown in fig. 2, in the present embodiment, the tempering furnace body 1 includes a tempering furnace bottom plate 101, a tempering furnace supporting plate 102 and a tempering furnace top cover 103, the tempering furnace bottom plate 101 and the tempering furnace supporting plate 102 are both disposed at the bottom of the tempering furnace body 1, the tempering furnace supporting plate 102 is disposed at the upper portion of the tempering furnace bottom plate 101, the tempering furnace supporting plate 102 is supported by the tempering furnace bottom plate 101, the tempering furnace supporting plate 102 is used for supporting and placing a saw blade and is used as a supporting platform for the saw blade to perform tempering in the tempering furnace; four saw blades can be placed on the tempering furnace supporting plate 102 at the same time for synchronous tempering; the lower side of tempering furnace bottom plate 101 is provided with a plurality of platform support columns 104, and tempering furnace bottom plate 101 is arranged at the lower end of tempering furnace body 1 through a plurality of platform support columns 104.

Furthermore, in the embodiment, the heating tubes 4 are uniformly arranged at two sides and the bottom of the tempering furnace body 1, and the heating tubes 4 are symmetrically arranged at two sides and the bottom of the tempering furnace body 1 by taking the vertical central line of the tempering furnace as a symmetry axis; the heating tube 4 is arranged between the inner side of the heat preservation structure and the side air guide plate 12, and the heat in the tempering furnace can be supplemented in time through the uniformly arranged heating tube 4, so that the saw blade in the furnace body is heated more uniformly; and the heating tube 4 has high radiation efficiency, strengthens heat exchange in the furnace, improves the heat efficiency of the furnace and prolongs the service life of the electric heating element.

Furthermore, in the embodiment, the heat insulation structure is provided with the heat insulation cotton 25 made of ceramic fibers, and the heat insulation cotton 25 increases the heat insulation effect of the furnace body and prevents heat in the furnace body from dissipating; the side edge of the heat insulation cotton 25 is connected with the air deflector assembly 11 through a first pull rod 20 and a second pull rod 23 matched with a bolt connecting structure, the inner side of the upper end of the heat insulation cotton 25 is connected with the upper end of the side air deflector 12 through a suspender 21, and the suspender 21 penetrates through the upper end of the heat insulation cotton 25 and extends upwards; a layer of fiber felt 26 is arranged at the upper end of each hanger rod 21 and outside the upper end of the heat insulation cotton 25, the sealing and heat insulation performance of the furnace body is further improved, a heat insulation wall is formed on the furnace body by matching the heat insulation cotton 25 with the laid fiber felt 26, the strength and the heat radiation performance of the inner wall body are improved, the heat efficiency of the furnace body is high, and the tempering is stable; but also can reduce the loss to the maximum extent and achieve the effect of rapid temperature rise and tempering.

As shown in fig. 16, in this embodiment, in order to increase the sealing performance of the device, a sealing device is arranged between the outer side of the tempering furnace body 1 and the pressure rods 6, so a sealing sleeve 27 is arranged on each pressure rod 6 and on the outer side of the upper end of the heat insulation cotton 25, four sealing sleeves 27 are arranged, each sealing sleeve 27 is sleeved on the outer periphery of the pressure rod 6, and the bottom end of each sealing sleeve 27 is tightly connected with the outer side of the upper end of the heat insulation cotton 25; the sealing sleeve 27 is provided with a flange 271, a flange cover 272 and a sealing sleeve bottom plate 273, the flange 271 and the flange cover 272 are adjacently arranged, the flange cover 272 is arranged above the flange 271, the flange 271 and the flange cover 272 are both arranged at the upper end of the sealing sleeve 27, the sealing sleeve bottom plate 273 is arranged at the lower end of the sealing sleeve 27, and the sealing sleeve 27 is connected with the heat-insulating cotton 25 through the sealing sleeve bottom plate 273; the flange 271 and the flange cover 272 are fixedly connected through a plurality of bolt-nut connecting structures 274, second heat-preservation cotton 275 is arranged between the flange 271 and the seal sleeve bottom plate 273, the second heat-preservation cotton 275 is made of aluminum silicate fibers, the second heat-preservation cotton 275 is a circular sleeve and is sleeved on the periphery of the pressure lever 6, and a connecting pipe 276 is arranged on the periphery of the second heat-preservation cotton 275 and used for supporting and fixing the second heat-preservation cotton 275.

In the embodiment, the sealing performance of the connection between the furnace body and the oil cylinder is ensured by arranging the sealing sleeve 27, so that the heat loss is reduced, and asbestos is conveniently filled.

In the embodiment, the furnace door 3 on the tempering furnace body 1 adopts a pressurizing furnace door, so that heat loss is prevented, and the operation is convenient; and the furnace door 3 adopts a light steel structural framework, and the fire-resistant fiber plate is used as a heat insulation material, so that the furnace door has the characteristics of simple and light structure, good sealing effect and the like.

Furthermore, in the embodiment, the sealing and pressing device is arranged on the furnace door 3, and the furnace door 3 is in sealing connection with the tempering furnace body 1 through the sealing and pressing device, so that sealing coincidence between furnace door fibers and furnace body fibers is ensured when the furnace door 3 is closed, and friction damage to the fibers is also avoided in the process of opening and closing the furnace door.

Furthermore, in the embodiment, the sealing and pressing device is provided with the pneumatic push rod, the link mechanism and the sealing pressing strip, so that the opening and closing of the furnace door 3 are more flexible, the furnace door 3 is firmly locked, the sealing performance is good, and the heat loss in the furnace body is avoided.

Furthermore, in the embodiment, the up-and-down movement and the lifting of the furnace door 3 are controlled by arranging the furnace door lifting device, the furnace door lifting device can be a multifunctional electric lifter, and the lifting of the furnace door is controlled by the lifter to be uniformly lifted up and down; the furnace door lifting device can also be operated by matching a motor and a speed reducer slide rail moving device with an electric lifting device, and the furnace door is lifted up and down under the control of the motor by arranging the slide rail moving device on the furnace door; meanwhile, the furnace door lifting device can also be of other structures capable of realizing vertical opening and closing of the furnace door, and as the furnace door lifting device is used in the prior art, redundant description is not repeated in the embodiment.

Furthermore, in the embodiment, the furnace door 3 is also provided with an upper travel and lower travel double-insurance limiting mechanism, so that the safety of the furnace door structure is improved; and each part of the furnace door adopts intelligent interlocking control, has an interlocking protection function, automatically cuts off the power supply of the heating element after the furnace door is opened, and automatically recovers the power supply of the heating element after the furnace door is closed, thereby preventing safety accidents caused by misoperation of operators.

Furthermore, in the embodiment, the tempering furnace control system is arranged on the tempering furnace body 1, the operation is simple and convenient, and the control system is also provided with the acousto-optic over-temperature alarm device, so that the temperature control is accurate; the control system adopts a control cabinet with an attached instrument for control, adopts advanced electrical elements, and adopts intelligent interlocking control on each part, thereby being safe and reliable; by adopting the intelligent instrument to carry out reasonable programming and parameter setting, the optimal control of each temperature area can be achieved. And all be provided with rather than supporting control switch on the furnace body, automatically controlled is connected, and control switch's mounted position selects according to the actual use demand.

The tempering furnace is safe and reliable in structure and convenient to operate, the tempering furnace is manufactured by adopting a plurality of layers of spaces, the inside of the tempering furnace is folded and embedded by stainless steel plates, the appearance is flat and smooth, the middle layer is provided with module heat-insulation cotton as a fireproof heat-insulation wall, and the full-fiber structure is adopted, so that the heat-insulation performance of the furnace body is improved, the energy can be saved, and the production cost is reduced; the heating tube 4 is arranged on the inner side of the heat preservation cotton 25 and serves as a heating part of the furnace body, under the action of circulating air sucked by the strong convection circulating fan 9, a U-shaped air duct 24 is formed around the wind baffle assembly 11 and the heating tube 4 which are arranged in the furnace body, the circulating air circularly flows in the furnace body and reaches a part to be tempered at the bottom, and the circulating air circularly reciprocates in the way, so that the temperature of the circulating air is stable and uniform, the heat efficiency of the furnace body is high, the tempering efficiency of the tempering furnace is high, and the tempering effect is good; the multilayer sealing structure arranged on the furnace body further increases the heat insulation performance of the furnace body, reduces the heat loss in the furnace body and realizes high-efficiency heat insulation performance; the tempering furnace has the advantages of firm integral structure, light and reliable manufacturing materials, better heat resistance and cold resistance compared with the traditional structure, good thermal stability, long service life and convenient maintenance of the furnace body.

In the description of the present invention, it is to be understood that the orientations or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The high-temperature pressurizing type tempering furnace is provided with a tempering furnace body and a supporting structure, wherein the supporting structure is arranged on the outer side of the tempering furnace body, and a heating device is arranged in the tempering furnace body;

the tempering furnace body is connected with a circulating fan, an air guide plate assembly is arranged on the inner side of the tempering furnace body and connected with the circulating fan, and a saw blade placing device is arranged at the bottom of the inner side of the tempering furnace body; the tempering furnace comprises a tempering furnace body and is characterized in that a heat insulation structure is arranged on the inner side of the tempering furnace body, a sealing device is arranged between the heat insulation structure and the pressing rod, the air guide plate assembly is an air guide structure consisting of a porous plate and a plurality of air guide plates, and a plurality of air duct holes are uniformly formed in the porous plate.

2. The saw blade high-temperature pressurized tempering furnace according to claim 1, wherein said oil cylinder and said pressure bar are provided with four, and a pressure plate is provided at the bottom end of each said pressure bar; the bottom of depression bar is provided with the annular groove, the annular groove is inwards sunken along the radial direction of depression bar.

3. The saw blade high-temperature pressurized tempering furnace according to claim 2, wherein an annular groove on each compression bar is connected with the pressure plate through a bearing bush, the bottom end of each compression bar is of a downward-protruding V-shaped arc structure, and the top of each pressure plate is provided with a groove structure which is matched and connected with the bottom end of each compression bar.

4. The saw blade high-temperature pressurized tempering furnace as claimed in claim 1, wherein said sealing device is provided with a sealing sleeve, said sealing sleeve is provided with a flange, a flange cover and a sealing sleeve bottom plate, said flange and flange cover are adjacently arranged and arranged at the upper end of the sealing sleeve, said sealing sleeve bottom plate is arranged at the lower end of the sealing sleeve, said flange and flange cover are connected through a plurality of bolt-nut connection structures.

5. The saw blade high-temperature pressurized tempering furnace according to claim 4, wherein heat insulation cotton is arranged between said flange and said sealing sleeve bottom plate, a connecting pipe is arranged on the periphery of said heat insulation cotton, and said heat insulation cotton is made of aluminum silicate fiber.

6. The saw blade high-temperature pressurized tempering furnace according to claim 1, wherein said tempering furnace body comprises a tempering furnace bottom plate, a tempering furnace supporting plate and a tempering furnace top cover, and a supporting frame is arranged at the upper end of said tempering furnace body; the saw blade placing device is provided with a saw blade supporting platform and a plurality of platform supporting columns arranged at the lower end of the saw blade supporting platform.

7. The saw blade high-temperature pressurized tempering furnace according to claim 6, wherein said furnace door is a pressurized furnace door, said furnace door is provided with a sealing and pressing device, said furnace door is hermetically connected with said tempering furnace body through said sealing and pressing device, said sealing and pressing device is provided with a pneumatic push rod, a link mechanism and a sealing bead.

8. The saw blade high-temperature pressurized tempering furnace according to claim 7, wherein said heating device is provided with a plurality of heating pipes, said plurality of heating pipes are uniformly distributed around the inner side of the tempering furnace body and are arranged at the inner side of said heat insulation structure; still be provided with a plurality of jib in the tempering furnace body, the jib with insulation construction connects the setting.

9. The saw blade high-temperature pressurized tempering furnace according to claim 1 or 8, wherein said air deflector assembly is provided with a plurality of hinge air deflectors, side air deflectors, a rear air deflector, two perforated plates and four corner air deflectors, said side air deflectors are respectively disposed at two sides of said tempering furnace body, said rear air deflector is disposed at the rear end of said tempering furnace body, said four corner air deflectors are disposed at the end corners of the rear end surface of said tempering furnace body and connected to said rear air deflector, and said perforated plates are disposed at the rear end surface of said tempering furnace body.

10. The saw blade high-temperature pressurized tempering furnace according to claim 9, wherein a plurality of circular air duct holes are uniformly arranged on said porous plate, said circulating fan is fixedly arranged on said tempering furnace body through a circulating fan fixing frame, and a U-shaped air duct is formed inside said tempering furnace body and around said heating device by air of said circulating fan.