CN112725599A - Tempering furnace - Google Patents

Abstract

The invention discloses a tempering furnace, which belongs to the technical field of tempering furnace equipment and comprises a case, a case plate, a feeding cover, a blanking conveying device, a control device and a moving device, wherein the case plate is horizontally arranged at the top of the case, the feeding cover is arranged in the tempering furnace in the case, the blanking conveying device is arranged in the case, the feeding cover is communicated with the blanking conveying device, the control device is arranged on the outer side wall of the case, the control device is electrically connected with the feeding cover and the blanking conveying device, and the moving device is arranged at the bottom of the case. According to the invention, the material can be uniformly discharged through the discharging conveying device, the material blocking condition can be prevented when the material is discharged, air can be heated through the heating assembly so as to be used by the subsequent thermal cycle assembly, hot air can be thermally cycled through the thermal cycle assembly, the thermal energy can be recycled, the energy is saved, and the heat dissipation assembly can perform heat dissipation operation on the thermal cycle assembly.

Description

Tempering furnace

Technical Field

The invention relates to the technical field of tempering furnace equipment, in particular to a tempering furnace.

Background

The workpiece is subjected to tempering treatment after quenching by quenching oil, a large amount of oil smoke is continuously generated in the tempering process, the environment is polluted, the human health is harmed, and the tempering furnace is used for tempering common metal parts in the air and quenching, annealing and aging heat treatment of light alloy parts such as aluminum alloy die castings, pistons, aluminum plates and the like.

However, the existing tempering furnace device has the following problems: when carrying out blowing processing operation to the tempering furnace, the condition of card material appears easily, and current tempering furnace can not carry out cyclic utilization to heat energy, the great problem of traditional tempering furnace power consumption.

Disclosure of Invention

The embodiment of the invention provides a tempering furnace, which solves the problems in the prior art.

The embodiment of the invention adopts the following technical scheme: the utility model provides a tempering furnace, includes quick-witted case, boxboard, feeding cover, unloading conveyer, controlling means and mobile device, the boxboard level sets up the top at quick-witted case, the feeding cover sets up at quick-witted incasement tempering furnace and is located the first half of box, unloading conveyer sets up in the box and the latter half that unloading conveyer is located the box, the feeding cover is linked together with unloading conveyer, controlling means sets up on the lateral wall of box, controlling means and feeding cover and unloading conveyer electric connection, the mobile device sets up the bottom at quick-witted case, the quick-witted incasement is equipped with the baffle that the level set up, be equipped with the discharge opening on the baffle, the top of boxboard is equipped with the feed port.

Furthermore, the moving device comprises four moving wheels which are distributed at the bottom of the case in a rectangular shape.

Furthermore, the box internal fixation is equipped with and connects the material cover, connect the material cover to be located unloading conveyer's unloading end, be equipped with ejection of compact cover on the lateral wall of box, ejection of compact cover and connect the butt joint of material cover.

Furthermore, the feeding cover is vertically arranged at the top of the partition plate, and two ends of the feeding cover are respectively communicated with the discharge hole in the partition plate and the feeding hole in the box plate.

Furthermore, the machine case also comprises a thermal circulation device, wherein the thermal circulation device is horizontally arranged at the top of the partition plate and is arranged on the feeding cover.

Further, the thermal cycle device comprises a heating assembly, a thermal cycle assembly and a heat dissipation assembly, wherein the heating assembly is arranged in the box body, the thermal cycle assembly is arranged on the feeding cover, and the heat dissipation assembly is arranged on the box body and faces the thermal cycle device.

Further, heating element is including installation cover, circulation air storage box and annular heating pipe, the installation cover set up in the bottom of baffle and with baffle fixed connection, circulation air storage box sets up in the installation cover and circulation air storage box is hollow structure, be equipped with a plurality of air outlets on the circulation air storage box, annular heating pipe fixed connection just coils on circulation air storage box in the installation cover.

Further, the thermal cycle subassembly includes thermal cycle case, circulation fan and air-supply line, thermal cycle case fixed connection just is linked together with the thermal cycle case at the top of baffle, the thermal cycle incasement is equipped with left loop chamber and right loop chamber, air-supply line fixed connection is in the installation cover, the both ends of air-supply line are linked together with circulation storage air box and thermal cycle case respectively, circulation fan sets up on the lateral wall in the left loop chamber of thermal cycle case and circulation fan's air-out end sets up towards the left loop intracavity.

Further, the heat dissipation assembly comprises a heat dissipation plate, a heat dissipation fan and a heat dissipation cover, the heat dissipation cover is arranged on the side wall of the thermal cycle box and covers the heat dissipation fan, three heat dissipation holes are formed in the heat dissipation cover, and the heat dissipation fan is arranged on the heat dissipation plate and the air outlet end of the heat dissipation fan faces the heat dissipation cover.

Furthermore, an air inlet hole is formed in the side wall, adjacent to the feeding cover, of the right circulation cavity in the thermal circulation box, and an air outlet communicated with the heat dissipation cover is formed in the right circulation cavity in the thermal circulation box.

The embodiment of the invention adopts at least one technical scheme which can achieve the following beneficial effects: even unloading to the material that can realize through the unloading conveyer that sets up, the condition of card material appears when can preventing the material from carrying out the unloading, can heat the air so that the use of continuous thermal cycle subassembly through heating element, can carry out the thermal cycle with steam through the thermal cycle subassembly, it is more energy-conserving to make heat energy cycle use repeatedly, heat radiation component dispels the heat the operation to the thermal cycle subassembly, when tempering furnace uses, controlling means can actually monitor the condition of unloading conveyer and heating element in the tempering furnace, so that obtain the situation to the tempering furnace and take notes.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic perspective view of a tempering furnace;

FIG. 2 is a schematic perspective view of a tempering furnace;

FIG. 3 is a schematic view of a partial perspective structure of a tempering furnace;

FIG. 4 is a first schematic perspective view of a thermal cycler;

FIG. 5 is a schematic perspective view of a second embodiment of the thermal cycler;

FIG. 6 is a third schematic perspective view of a thermal cycler;

FIG. 7 is a first perspective view of the heating element;

FIG. 8 is a second perspective view of the heating element;

fig. 9 is a schematic perspective view of the blanking conveying device;

FIG. 10 is a perspective view of the driving device;

FIG. 11 is a first partial perspective view of the material separating device;

fig. 12 is a partial perspective view of the material separating device;

fig. 13 is a schematic view of a partial three-dimensional structure of the material distributing device;

reference numerals:

the machine case 1, the material receiving cover 11, the material discharging cover 12, the partition plate 13, the material discharging hole 14, the box plate 2, the material feeding hole 21, the material feeding cover 3, the blanking conveying device 4, the moving device 40, the moving device 5, the moving wheel 51, the thermal circulating device 6, the heating component 61, the mounting cover 611, the circulating air storage box 612, the annular heating pipe 613, the air outlet 614, the thermal circulating component 62, the thermal circulating box 621, the left circulating cavity 6211, the right circulating cavity 6212, the air inlet 6213, the air outlet 6214, the circulating fan 623, the air inlet pipe 624, the heat dissipating component 63, the heat dissipating plate 631, the heat dissipating fan 632, the heat dissipating cover 633, the heat dissipating hole 634, the driving device 7, the driving motor 71, the motor fixing seat 72, the driving gear 73, the rotating gear 74, the bottom supporting panel 75, the rotating shaft 76, the rotating fixing seat 77, the material distributing device 8, the material distributing disc 81, the material distributing drum 82, fan-shaped closing block 841, fan-shaped closed fixed rod 842, fan-shaped closed connecting block 843, articulated piece 844, sideslip connecting rod 845, reset spring piece 846, axis of rotation 847, slip fixed block 848, second branch material subassembly 85, third branch material subassembly 86, fourth branch material subassembly 87, stroke cam 88, baffle 89.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 13, an embodiment of the present invention provides a tempering furnace, including a cabinet 1, a cabinet plate 2, a feeding cover 3, a blanking conveying device 4, a moving device 40, and a moving device 5, where the cabinet plate 2 is horizontally disposed at the top of the cabinet 1, the feeding cover 3 is disposed in the tempering furnace in the cabinet 1 and located at the upper half of the cabinet 1, the blanking conveying device 4 is disposed in the cabinet 1 and the blanking conveying device 4 is located at the lower half of the cabinet 1, the feeding cover 3 is communicated with the blanking conveying device 4, the moving device 40 is disposed on the outer side wall of the cabinet 1, the moving device 40 is electrically connected to the feeding cover 3 and the blanking conveying device 4, the moving device 5 is disposed at the bottom of the cabinet 1, a horizontally disposed partition plate 13 is disposed in the cabinet 1, a discharge hole 14 is disposed on the partition plate 13, a feed hole 21 is disposed at the top of the cabinet plate 2, thermal cycle device 6 includes heating element 61, thermal cycle subassembly 62 and radiator unit 63, heating element 61 sets up in quick-witted case 1, thermal cycle subassembly 62 sets up on feeding cover 3, radiator unit 63 sets up on quick-witted case 1 and radiator unit 63's heat dissipation end towards thermal cycle device 6 unloading conveyer 13 includes feeding cover 3, drive arrangement 7 and feed divider 8, feeding cover 3 is the level setting, drive arrangement 7 installs in quick-witted case 1, feed divider 8 install at drive arrangement 7 the top and with drive arrangement 7 normal running fit, feed divider 8 docks with feeding cover 3.

Specifically, the moving device 5 includes four moving wheels 51, and the four moving wheels 51 are distributed at the bottom of the chassis 1 in a rectangular shape; the four trundles can drive the tempering furnace to move in any direction, so that the tempering furnace can be conveniently moved.

Specifically, a material receiving cover 11 is fixedly arranged in the case 1, the material receiving cover 11 is positioned at the discharging end of the discharging conveying device 4, a discharging cover 12 is arranged on the outer side wall of the case 1, and the discharging cover 12 is in butt joint with the material receiving cover 11; the blanking conveying device 4 conveys the material into the discharging cover 12 and then moves and discharges the material outwards through the receiving cover 11.

Specifically, the feeding cover 3 is vertically arranged on the top of the partition plate 13, and two ends of the feeding cover 3 are respectively communicated with the discharge hole 14 on the partition plate 13 and the feeding hole 21 on the box plate 2; the feeding cover 3 is used for conveying materials into the tempering furnace.

Specifically, the case 1 further comprises a thermal circulation device 6, wherein the thermal circulation device 6 is horizontally arranged on the top of the partition plate 13, and the thermal circulation device 6 is arranged on the feeding cover 3; the thermal cycle device 6 is used for recycling the heat source.

Specifically, the heating assembly 61 includes an installation cover 611, a circulating air storage box 612 and an annular heating pipe 613, the installation cover 611 is arranged at the bottom of the partition plate 13 and is fixedly connected with the partition plate 13, the circulating air storage box 612 is arranged in the installation cover 611, the circulating air storage box 612 is of a hollow structure, a plurality of air outlets 614 are arranged on the circulating air storage box 612, and the annular heating pipe 613 is fixedly connected in the installation cover 611 and is wound on the circulating air storage box 612; the installation cover 611 is used for fixing the circulating air storage box 612 and the annular heating pipe 613, when heating is performed, the thermal circulation component 62 conveys air into the circulating air storage box 612, the circulating air storage box 612 conveys the air into the installation cover 611 through the air outlets 614, the annular heating pipe 613 heats the air exhausted from the circulating air storage box 612, the hot air is upwards conveyed into the feeding cover 3 through the discharge hole 14 in the partition plate 13, and the annular heating pipe 613 can heat the air exhausted from the air outlets 614 more uniformly.

Specifically, the thermal circulation assembly 62 includes a thermal circulation box 621, a circulation fan 623 and an air inlet pipe 624, the thermal circulation box 621 is fixedly connected to the top of the partition plate 13 and is communicated with the thermal circulation box 621, a left circulation cavity 6211 and a right circulation cavity 6212 are arranged in the thermal circulation box 621, the air inlet pipe 624 is fixedly connected in the installation cover 611, two ends of the air inlet pipe 624 are respectively communicated with the circulation air storage box 612 and the thermal circulation box 621, the circulation fan 623 is arranged on the side wall of the left circulation cavity 6211 of the thermal circulation box 621, and the air outlet end of the circulation fan 623 faces the left circulation cavity 6211; during thermal circulation, the circulating fan 623 works to convey wind in the feeding cover 3 to the right circulating cavity 6212 in the thermal circulation box 621 through the air inlet hole 6213, then the wind is conveyed to the circulating fan 623 through the air outlet 6214 on the right circulating cavity 6212, the circulating fan 623 conveys the wind into the left circulating cavity 6211, and the wind in the left circulating cavity 6211 is conveyed to the circulating air storage box 612 through the air inlet pipe 624, so that the circulating utilization of the hot wind is realized.

Specifically, the heat dissipation assembly 63 includes a heat dissipation plate 631, a heat dissipation fan 632, and a heat dissipation cover 633, the heat dissipation cover 633 is disposed on a sidewall of the thermal circulation box 621, and the heat dissipation cover 633 covers the heat dissipation fan 623, the heat dissipation cover 633 is provided with three heat dissipation holes 634, the heat dissipation fan 632 is disposed on the heat dissipation plate 631, and an air outlet end of the heat dissipation fan 632 faces the heat dissipation cover 633; the heat dissipation plate 631 is used for mounting the heat dissipation fan 632, when the circulation fan 623 works, the circulation fan 623 needs to be dissipated, and at this time, the heat dissipation fan 632 works to dissipate heat of the circulation fan 623 through the three heat dissipation holes 634 on the heat dissipation cover 633, so that the temperature on the circulation fan 623 is kept constant, and the circulation fan 623 cannot be damaged due to high temperature.

Specifically, the side walls of the upper right circulation cavity 6212 of the thermal circulation box 621 adjacent to the feeding cover 3 are provided with air inlet holes 6213, and the upper right circulation cavity 6212 of the thermal circulation box 621 is provided with an air outlet 6214 communicated with the heat dissipation cover 633; the air inlet 6213 is used for conveying the air from the feeding hood 3 into the right circulation chamber 6212, and the air outlet 6214 is used for conveying the air from the right circulation chamber 6212 into the heat dissipation hood 633 for being discharged by the circulation fan 623.

Specifically, the driving device 7 includes a driving motor 71, a motor fixing seat 72, a driving gear 73, a rotating gear 74, a bottom supporting panel 75, a rotating shaft 76 and a rotating fixing seat 77, the bottom supporting panel 75 is installed on a side wall in the chassis 1, the driving motor 71 is installed at the top of the chassis 1, the motor fixing seat 72 is installed at the bottom of the bottom supporting panel 75 and fixedly connected with the driving motor 71, the driving gear 73 is installed on a main shaft of the driving motor 71 and is in transmission fit with the driving motor 71, the rotating fixing seat 77 is installed at the top of the bottom supporting panel 75, the rotating shaft 76 is installed in the rotating fixing seat 77 and penetrates through the bottom supporting panel 75, the rotating gear 74 is installed at one end of the rotating shaft 76 and is in rotational connection with the rotating shaft 76, and the rotating gear 74 is meshed with the; after the fed material is processed, the driving device 7 operates, the driving motor 71 operates to drive the driving gear 73 to rotate, the driving gear 73 rotates to drive the rotating gear 74 to rotate, the rotating gear 74 rotates to drive the rotating shaft 76 to rotate on the rotating fixing seat 77, and the material distributing disc 83 is driven to rotate to complete the operation.

Specifically, the material distributing device 8 comprises a material distributing equi-dividing disc 81, a material distributing barrel 82, a material distributing disc 83, a material distributing piece 90, a stroke cam 88 and four baffles 89, wherein the material distributing disc 83 is installed at the other end of the rotating shaft 76, the material distributing barrel 82 is installed at the top of the material distributing disc 83, the material distributing equi-dividing disc 81 is installed at the bottom of the material distributing disc 83, the four baffles 89 are circumferentially arranged on the side wall of the material distributing equi-dividing disc 81, and the stroke cam 88 is fixedly connected to the rotary fixing seat 77;

specifically, the material distributing member 90 includes a first material distributing assembly 84, a second material distributing assembly 85, a third material distributing assembly 86 and a fourth material distributing assembly 87, the first material distributing assembly 84, the second material distributing assembly 85, the third material distributing assembly 86 and the fourth material distributing assembly 87 are identical in structure and are circumferentially arranged at the bottom of the material distributing bisecting disc 81, the first material distributing assembly 84 includes a fan-shaped closing block 841, a fan-shaped closing fixing rod 842, a fan-shaped closing connecting block 843, a hinge block 844, a transverse moving connecting rod 845, a reset spring piece 846, a rotating shaft 847 and a sliding fixing block 848, one end of the fan-shaped closing fixing rod 842 is arranged at the bottom of the material distributing bisecting disc 81, the sliding fixing block 848 is arranged at the bottom of the fan-shaped closing fixing rod 842, the transverse moving connecting rod 845 is arranged at the other end of the fan-shaped closing fixing rod 842 and is in hinged fit with, the transverse moving connecting rod 845 is in sliding fit with the sliding fixing block 848, two ends of the hinge block 844 are respectively in hinged fit with one end of the sector-shaped closing fixing rod 842 and one end of the transverse moving connecting rod 845, the sector-shaped closing connecting block 843 is installed at the top of the hinge block 844, the reset spring piece 846 is installed at the bottom of the sector-shaped closing connecting block 843, the sector-shaped closing block 841 is installed at the top of the sector-shaped closing connecting block 843, the bottom of the material distribution and equally distributing disc 81 is provided with lower material sliding holes with the same size as the sector-shaped closing block 841, and the rotating shaft 847 is installed at the other end; when material is distributed, the material distribution disc 83 rotates to drive the material distribution equi-index disc 81 to rotate, the material distribution equi-index disc 81 rotates to enable the fan-shaped closed fixing rod 842 to move, when the material is moved to the stroke cam 88, the rotating shaft 847 collides with the stroke cam 88 to drive the transverse moving connecting rod 845 to slide on the sliding fixing block 848, the transverse moving connecting rod 845 moves to drive the hinged block 844 to move downwards, the hinged block 844 moves downwards to drive the fan-shaped closed connecting block 843 to move downwards to drive the fan-shaped closed block 841 to move downwards to enable the material in the material distribution equi-index disc 81 to fall down so as to prevent the material from being blocked when the material is discharged, and when the material is discharged, the rotating shaft 847 does not collide with the stroke cam 88, the reset spring piece 846 enables the.

The working principle of the invention is as follows: when the invention is used, when discharging, the material is conveyed downwards through the feeding cover 3 by the feeding hole 21, when thermal circulation is carried out, the circulating fan 623 works to convey the wind in the feeding cover 3 to the right circulating cavity 6212 in the thermal circulation box 621 through the air inlet hole 6213, then the wind is conveyed to the circulating fan 623 through the air outlet 6214 on the right circulating cavity 6212, the circulating fan 623 conveys the wind into the left circulating cavity 6211, the wind in the left circulating cavity 6211 is conveyed to the circulating wind storage box 612 through the air inlet pipe 624, the circulation utilization of the hot wind is realized, when heating is carried out, the wind is conveyed to the circulating wind storage box 612 by the thermal circulation component 62, the wind is conveyed to the installation cover 611 through the air outlet 614 by the circulating wind storage box 612, the air exhausted from the circulating wind storage box 612 is heated by the annular heating pipe 613, the hot wind is conveyed upwards to the feeding cover 3 through the air outlet hole 14 on the clapboard 13, the annular heating pipe 613 can heat the air exhausted from the air outlets 614 more uniformly, when the circulating fan 623 works, the circulating fan 623 needs to be radiated, at this time, the radiating fan 632 works to radiate the heat of the circulating fan 623 through the three radiating holes 634 on the radiating cover 633, so as to ensure that the temperature on the circulating fan 623 is in a constant state, and the circulating fan 623 cannot be damaged due to high temperature, after the processing operation of the material is completed, the driving device 7 works, the driving motor 71 works to drive the driving gear 73 to rotate, the driving gear 73 rotates to drive the rotating gear 74 to rotate, the rotating gear 74 rotates to drive the rotating shaft 76 to rotate on the rotating fixing seat 77 to drive the material distribution disc 83 to rotate, the material distribution disc 83 rotates to drive the material distribution equi-dividing disc 81, the material distribution disc 81 rotates to enable the sector-shaped closed 842 fixing rod to move, and when the material distribution disc 81 moves, the rotating shaft 847 is abutted against the stroke cam 88 to drive the transverse moving connecting rod 845 to slide on the sliding fixing block 848, the transverse moving connecting rod 845 moves to drive the hinged block 844 to move downwards, the hinged block 844 moves downwards to drive the fan-shaped closed connecting block 843 to move downwards to drive the fan-shaped closed block 841 to move downwards so that materials in the material distribution equi-dividing disc 81 fall down to prevent the materials from being blocked when blanking is performed, after blanking is finished, when the rotating shaft 847 is not abutted against the stroke cam 88, the reset spring piece 846 enables the fan-shaped closed block 841 to recover the original shape to continue to operate and complete the operation, and the blanking conveying device 4 conveys the materials into the discharging cover 12 and then outwards moves and discharges the materials through the material receiving cover 11.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. A tempering furnace is characterized by comprising a machine case (1), a case plate (2), a feeding cover (3), a blanking conveying device (4), a moving device (40) and a moving device (5), wherein the case plate (2) is horizontally arranged at the top of the machine case (1), the feeding cover (3) is arranged in the machine case (1) of the tempering furnace and is positioned at the upper half part of the machine case (1), the blanking conveying device (4) is arranged in the machine case (1) of the tempering furnace and is positioned at the lower half part of the machine case (1), the feeding cover (3) is communicated with the blanking conveying device (4), the moving device (40) is arranged on the outer side wall of the machine case (1), the moving device (40) is electrically connected with the feeding cover (3) and the blanking conveying device (4), the moving device (5) is arranged at the bottom of the machine case (1), and a partition plate (13) which is horizontally arranged is arranged in the machine case (1), the baffle (13) is provided with a discharge hole (14), and the top of the box plate (2) is provided with a feed hole (21).

2. A tempering furnace as set forth in claim 1 wherein: the moving device (5) comprises four moving wheels (51), and the four moving wheels (51) are distributed at the bottom of the case (1) in a rectangular shape.

3. A tempering furnace as set forth in claim 1 wherein: the automatic feeding machine is characterized in that a material receiving cover (11) is fixedly arranged in the machine case (1), the material receiving cover (11) is located at a discharging end of the discharging conveying device (4), a discharging cover (12) is arranged on the outer side wall of the machine case (1), and the discharging cover (12) is in butt joint with the material receiving cover (11).

4. A tempering furnace as set forth in claim 1 wherein: the feeding cover (3) is vertically arranged at the top of the partition plate (13), and two ends of the feeding cover (3) are respectively communicated with a discharge hole (14) in the partition plate (13) and a feeding hole (21) in the box plate (2).

5. A tempering furnace as set forth in claim 1 wherein: the machine box (1) is internally provided with a heat circulating device (6), the heat circulating device (6) is horizontally arranged at the top of the partition plate (13), and the heat circulating device (6) is arranged on the feeding cover (3).

6. A tempering furnace as set forth in claim 5 wherein: the heat circulation device (6) comprises a heating assembly (61), a heat circulation assembly (62) and a heat dissipation assembly (63), wherein the heating assembly (61) is arranged in the case (1), the heat circulation assembly (62) is arranged on the feeding cover (3), and the heat dissipation assembly (63) is arranged on the case (1) and the heat dissipation end of the heat dissipation assembly (63) faces the heat circulation device (6).

7. A tempering furnace as set forth in claim 6 wherein: heating element (61) is including installation cover (611), circulation air storage box (612) and annular heating pipe (613), installation cover (611) set up in the bottom of baffle (13) and with baffle (13) fixed connection, circulation air storage box (612) set up in installation cover (611) and circulation air storage box (612) are hollow structure, be equipped with a plurality of air exit (614) on circulation air storage box (612), annular heating pipe (613) fixed connection just coils on circulation air storage box (612) in installation cover (611).

8. A tempering furnace as set forth in claim 7 wherein: thermal cycle subassembly (62) include thermal cycle case (621), circulating fan (623) and air-supply line (624), thermal cycle case (621) fixed connection at the top of baffle (13) and be linked together with thermal cycle case (621), be equipped with left circulation chamber (6211) and right circulation chamber (6212) in thermal cycle case (621), air-supply line (624) fixed connection is in installation cover (611), the both ends of air-supply line (624) are linked together with circulation air storage box (612) and thermal cycle case (621) respectively, circulating fan (623) set up on the lateral wall of the left circulation chamber (6211) of thermal cycle case (621) and the air-out end of circulating fan (623) sets up towards left circulation chamber (6211).

9. A tempering furnace as set forth in claim 8 wherein: radiator unit (63) include heating panel (631), radiator fan (632) and heat exchanger (633), heat exchanger (633) sets up on the lateral wall of thermal cycle case (621) and radiator fan (623) cover, be equipped with three louvre (634) on heat exchanger (633), radiator fan (632) set up on heating panel (631) and the air-out end orientation heat exchanger (633) of radiator fan (632).

10. A tempering furnace as set forth in claim 9 wherein: the air inlet holes (6213) are formed in the side walls, adjacent to the feeding cover (3), of the right circulation cavity (6212) on the thermal circulation box (621), and the air outlet (6214) communicated with the heat dissipation cover (633) is formed in the right circulation cavity (6212) on the thermal circulation box (621).

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