阅读说明：本技术 一种焊接热处理装置 (Welding heat treatment device ) 是由 高智鹏 于 2020-06-22 设计创作，主要内容包括：一种焊接热处理装置,本发明涉及金属加工设备技术领域,加热炉的前侧壁上开设有装填口,加热炉的下内侧壁上固定设置有二号滑轨,二号滑轨上滑动设置有托板,加热炉的上表面上设置有环槽,环槽内活动设置有环板,环槽的下侧壁上穿设有一号孔,环板上穿设有二号孔；一号管道绕设在加热炉的内侧壁上,底座上固定设置有总管,总管上穿设固定有数个二号管道,二号管道的出口端穿设固定在加热炉的侧壁上；其采用侧向装填、上方散热的设计,能够保证升温过程中产生的热量不对操作人员产生危害,其加热炉内设置有风冷散热的管道,能够在工件加工完成后根据需求快速降温,且可选通风模式,保证工件快速降温,方便卸料。(The invention relates to a welding heat treatment device, which relates to the technical field of metal processing equipment.A filling port is formed on the front side wall of a heating furnace, a second sliding rail is fixedly arranged on the lower inner side wall of the heating furnace, a supporting plate is arranged on the second sliding rail in a sliding manner, an annular groove is formed in the upper surface of the heating furnace, an annular plate is movably arranged in the annular groove, a first hole is formed in the lower side wall of the annular groove in a penetrating manner, and a second hole is formed in the annular plate in a penetrating manner; the first pipeline is wound on the inner side wall of the heating furnace, a header pipe is fixedly arranged on the base, a plurality of second pipelines are fixedly arranged on the header pipe in a penetrating manner, and the outlet ends of the second pipelines are fixedly arranged on the side wall of the heating furnace in a penetrating manner; it adopts side direction to load, the radiating design in top, can guarantee that the heat that the intensification in-process produced does not produce harm to operating personnel, is provided with the radiating pipeline of forced air cooling in its heating furnace, can accomplish the back according to the demand rapid cooling at work piece processing, and optional ventilation mode, guarantees work piece rapid cooling, conveniently unloads.)

1. A welding heat treatment device is characterized in that: the heating device comprises a base (1), a heating component (2) and a cooling component (3), wherein the heating component (2) is fixedly arranged on the base (1), and the cooling component (3) is arranged in the heating component (2);

the heating assembly (2) comprises a heating furnace (2-1), a cover plate (2-3) and a supporting plate (2-7), wherein the heating furnace (2-1) is fixedly arranged on the base (1), a filling opening (2-2) is formed in the front side wall of the heating furnace (2-1), the cover plate (2-3) is arranged on the filling opening (2-2) in a covering mode, a first sliding rail (2-4) is fixedly arranged on the base (1), a first sliding block (2-5) is arranged on the first sliding rail (2-4) in a sliding mode, and the lower side edge of the cover plate (2-3) is fixedly arranged on the first sliding block (2-5); a second sliding rail (2-6) is fixedly arranged on the lower inner side wall of the heating furnace (2-1), the front end of the second sliding rail (2-6) extends into the filling port (2-2), a supporting plate (2-7) is arranged on the second sliding rail (2-6) in a sliding manner, a plurality of combustion ports (2-8) are fixedly arranged on the lower inner side wall of the heating furnace (2-1), and the combustion ports (2-8) are wound around the supporting plate (2-7); an annular groove (2-9) is formed in the upper surface of the heating furnace (2-1), an annular plate (2-10) is movably arranged in the annular groove (2-9), a first hole (2-11) is formed in the lower side wall of the annular groove (2-9) in a penetrating mode, the first hole (2-11) is communicated with the inside of the heating furnace (2-1), a second hole (2-12) is formed in the annular plate (2-10) in a penetrating mode, and the second hole (2-12) is communicated with the first hole (2-11);

the cooling assembly (3) comprises an air pump (3-6), a first pipeline (3-1), a header pipe (3-3) and a second pipeline (3-5), wherein the first pipeline (3-1) is wound on the inner side wall of the heating furnace (2-1), the lower end of the first pipeline (3-1) penetrates through the lower end of the side wall of the heating furnace (2-1), and the upper end of the first pipeline (3-1) penetrates through the upper end of the side wall of the heating furnace (2-1); a main pipe (3-3) is fixedly arranged on the base (1), a plurality of second pipelines (3-5) are fixedly arranged on the main pipe (3-3) in a penetrating way, and the outlet ends of the second pipelines (3-5) are fixedly arranged on the side wall of the heating furnace (2-1) in a penetrating way; an air pump (3-6) is fixedly arranged on the base (1), the inlet end of the first pipeline (3-1) and the inlet end of the header pipe (3-3) are both connected to the outlet end of the air pump (3-6) in a flange mode, a first control valve (3-2) is arranged at the lower end of the first pipeline (3-1) in series, and a second control valve (3-4) is arranged on the header pipe (3-3) in series.

2. A welding heat treatment apparatus as defined in claim 1, wherein: the upper side wall of the heating furnace (2-1) is movably provided with a sleeve (4) in a penetrating way, the sleeve (4) is arranged above the supporting plate (2-7), the upper side wall of the heating furnace (2-1) is provided with a sliding groove (5), the outer side wall of the sleeve (4) is fixedly provided with a second sliding block (6), the second sliding block (6) is arranged in the sliding groove (5) in a sliding way, the lower end of the second sliding block (6) is provided with a pin hole (7), a pin rod (8) is movably inserted in the pin hole (7), the pin rod (8) is movably abutted against the upper side wall of the heating furnace (2-1), a workpiece is placed on the supporting plate (2-7) to carry out heating operation, the pin rod (8) is drawn out from the pin hole (7), the sleeve (4) slides downwards, the sleeve (4) covers the workpiece, and further separates the workpiece from a combustion port (2-8), the burner ports (2-8) now heat the sleeve (4) directly and heat the product indirectly.

3. A welding heat treatment apparatus as defined in claim 1, wherein: the upper surface of the supporting plate (2-7) is fixedly provided with a net sleeve (9), the net sleeve (9) is wound on the side edge of the supporting plate (2-7), a workpiece is placed on the supporting plate (2-7) to be processed, the net sleeve (9) is wound around the periphery of the workpiece to prevent the workpiece from sideslipping, and heat generated by the combustion port (2-8) directly heats the workpiece through a hole in the net sleeve (9).

4. A welding heat treatment apparatus as defined in claim 1, wherein: and a third control valve (10) is connected in series on the second pipeline (3-5), and when the air pump (3-6) supplies air to the second pipeline (3-5) through the header pipe (3-3), each third pipeline is independently controlled to be opened and closed through the third control valve (10).

5. A welding heat treatment apparatus as defined in claim 1, wherein: the novel heating furnace is characterized in that a detection port (11) is formed in the cover plate (2-3), slots (12) are formed in the left side and the right side of the detection port (11), the slots (12) are fixedly arranged on the cover plate (2-3), baffles (13) are movably inserted into the slots (12), the baffles (13) are arranged on the detection port (11) in a covering mode, the baffles (13) are upwards drawn out of the slots (12), the baffles (13) are moved away from the front of the detection port (11), and the state of the heating furnace (2-1) is monitored through the detection port (11).

6. A welding heat treatment apparatus as defined in claim 1, wherein: the upper end of the inner side wall of the heating furnace (2-1) is fixedly provided with a fireproof plate (14), the fireproof plate (14) is arranged below the first hole (2-11), when the combustion port (2-8) is ignited, and the first hole (2-11) is communicated with the second hole (2-12), the fireproof plate (14) is blocked below the first hole (2-11), and flame generated by the combustion port (2-8) is blocked by the fireproof plate (14) and cannot be directly sprayed out from the first hole (2-11).

7. A welding heat treatment apparatus as defined in claim 1, wherein: the working principle is as follows: when a workpiece is placed into the heating furnace (2-1), the cover plate (2-3) is opened by sliding laterally, the supporting plate (2-7) is pulled out of the heating furnace (2-1), the workpiece is fixed on the supporting plate (2-7), the supporting plate (2-7) is pushed into the heating furnace (2-1), and the cover plate (2-3) is closed; then heating the heating furnace (2-1), connecting the combustion port (2-8) with an external fuel gas supply pipeline and igniting, heating the combustion gas in the heating furnace (2-1) to calcine the workpiece, rotating the ring plate (2-10) when heating and combusting in the heating furnace (2-1), so that the second hole (2-12) on the ring plate (2-10) is aligned with the first hole (2-11) on the heating furnace (2-1), and the top end of the heating furnace (2-1) is communicated with the outside to realize ventilation; when a workpiece is heated to a specified temperature, constant-temperature heat preservation is carried out, the combustion ports (2-8) are ignited intermittently at the moment, the temperature in the heating furnace (2-1) is constant, at this stage, the ring plate (2-10) is rotated, so that the first hole (2-11) and the second hole (2-12) are staggered, namely, the space in the heating furnace (2-1) is isolated from the outside, and when the combustion ports (2-8) are ignited, the ring plate (2-10) is rotated, so that the first hole (2-11) and the second hole (2-12) are aligned; when the workpiece in the heating furnace (2-1) is kept at a constant temperature for a specified time, the heating furnace (2-1) is cooled, the first pipeline (3-1) and the air pump (3-6) are firstly connected, the air pump (3-6) blows up into the first pipeline (3-1), the side wall of the first pipeline (3-1) absorbs heat in the heating furnace (2-1) and carries the heat out through air flowing in the first pipeline (3-1), when the heating furnace (2-1) is cooled to a certain temperature, the first control valve (3-2) is closed, the second control valve (3-4) is opened, the ring plate (2-10) is rotated to enable the first hole (2-11) to be aligned with the second hole (2-12), and the header pipe (3-3), the second pipeline (3-5) and the air pump (3-6) are connected at the moment, the air pump (3-6) is arched, the second pipeline (3-5) directly blows air into the heating furnace (2-1), at the moment, external air directly enters the heating furnace (2-1), heat in the heating furnace (2-1) and heat on the workpiece are taken out and discharged from the first hole (2-11) and the second hole (2-12) which are communicated, and after the temperature reduction in the heating furnace (2-1) is completed, the cover plate (2-3) is opened to take out the workpiece.

Technical Field

The invention relates to the technical field of metal processing equipment, in particular to a welding heat treatment device.

Background

After the metal piece is welded, large internal stress exists at a welding point due to deformation in the welding process, and if the internal stress eliminating processing is not performed on the welding point, the welding point can generate obvious metal fatigue after long-term use, so that the welding point is broken; in the prior art, in order to eliminate the influence of internal stress after metal welding, a welded workpiece is heated and kept for a certain time in a high-temperature environment, the internal stress of a welding point of the welded workpiece is eliminated through high-temperature softening of metal, and then the normal work of the welded workpiece is ensured.

Disclosure of Invention

The invention aims to overcome the defects and shortcomings of the prior art, and provides a welding heat treatment device which is reasonable in design and convenient to use.

In order to achieve the purpose, the invention adopts the technical scheme that: the heating device comprises a base, a heating component and a cooling component, wherein the heating component is fixedly arranged on the base, and the cooling component is arranged in the heating component;

the heating assembly comprises a heating furnace, a cover plate and a supporting plate, wherein the heating furnace is fixedly arranged on the base, a filling port is formed in the front side wall of the heating furnace, the cover plate is covered on the filling port, a first slide rail is fixedly arranged on the base, a first slide block is arranged on the first slide rail in a sliding manner, and the lower side edge of the cover plate is fixedly arranged on the first slide block; a second sliding rail is fixedly arranged on the lower inner side wall of the heating furnace, the front end of the second sliding rail extends into the filling port, a supporting plate is arranged on the second sliding rail in a sliding manner, a plurality of combustion ports are fixedly arranged on the lower inner side wall of the heating furnace, and the combustion ports are wound around the supporting plate; the upper surface of the heating furnace is provided with a ring groove, a ring plate is movably arranged in the ring groove, a first hole is arranged on the lower side wall of the ring groove in a penetrating manner and communicated with the inside of the heating furnace, a second hole is arranged on the ring plate in a penetrating manner and communicated with the first hole;

the cooling assembly comprises an air pump, a first pipeline, a header pipe and a second pipeline, wherein the first pipeline is wound on the inner side wall of the heating furnace, the lower end of the first pipeline penetrates through the lower end of the side wall of the heating furnace, and the upper end of the first pipeline penetrates through the upper end of the side wall of the heating furnace; a main pipe is fixedly arranged on the base, a plurality of second pipelines are fixedly arranged on the main pipe in a penetrating way, and outlet ends of the second pipelines are fixedly arranged on the side wall of the heating furnace in a penetrating way; the air pump is fixedly arranged on the base, the inlet end of the first pipeline and the inlet end of the header pipe are connected to the outlet end of the air pump in a flange mode, the lower end of the first pipeline is connected with a first control valve in series, and the header pipe is connected with a second control valve in series.

Further, the sleeve is movably arranged on the upper side wall of the heating furnace in a penetrating mode, the sleeve is arranged above the supporting plate, a sliding groove is formed in the upper side wall of the heating furnace, a second sliding block is fixedly arranged on the outer side wall of the sleeve and slides in the sliding groove, a pin hole is formed in the lower end of the second sliding block, a pin rod is movably inserted in the pin hole, the pin rod is movably abutted to the upper side wall of the heating furnace, a workpiece is placed on the supporting plate to be heated, the pin rod is pulled out of the pin hole and downwards slides to the sleeve, the sleeve covers the workpiece, the workpiece is separated from a combustion port, the combustion port directly heats the sleeve at the moment, and the product is indirectly heated.

Furthermore, the upper surface of layer board on fixed be provided with the net cover, and the net cover is around establishing on the side of layer board, put the work piece and process on the layer board, the net cover is around the work piece, blocks the work piece and sideslips, the heat that the burner port produced directly heats the work piece through the hole on the net cover.

Furthermore, the second pipeline is provided with a third control valve in series, and when the air pump supplies air to the second pipeline through the header pipe, the third control valve independently controls the opening and closing of each third pipeline.

Furthermore, the cover plate is provided with a detection port, slots are formed in the left side and the right side of the detection port, the slots are fixedly arranged on the cover plate, a baffle is movably inserted into the slots and covers the detection port, the baffle is upwards drawn out of the slots and is moved away from the front of the detection port, and the state in the heating furnace is monitored through the detection port at the moment.

Further, the fixed PLASTIC LAMINATED that is provided with in inside wall upper end of heating furnace, the PLASTIC LAMINATED sets up the below in a hole, and when the burner port was igniteed, a hole and No. two holes link up, the PLASTIC LAMINATED kept off the below in a hole, the flame that the burner port produced this moment is blocked by the PLASTIC LAMINATED, can directly not follow a downthehole blowout.

The working principle of the invention is as follows: when a workpiece is placed into the heating furnace, the cover plate is laterally opened in a sliding manner, the supporting plate is pulled out of the heating furnace, the workpiece is fixed on the supporting plate, the supporting plate is pushed into the heating furnace, and the cover plate is closed; heating the heating furnace, connecting the combustion port with an external fuel gas supply pipeline and igniting, wherein the combustion of the fuel gas in the heating furnace is heated to calcine the workpiece, when the heating furnace is heated and combusted, the ring plate is rotated to align the second hole on the ring plate with the first hole on the heating furnace, and the top end of the heating furnace is communicated with the outside to realize ventilation; when the workpiece is heated to a specified temperature, constant-temperature heat preservation is carried out, the combustion port is ignited intermittently at the moment, the temperature in the heating furnace is constant, at this stage, the ring plate is rotated, so that the first hole and the second hole are staggered, namely, the space in the heating furnace is isolated from the outside, and when the combustion port is ignited, the ring plate is rotated, so that the first hole is aligned with the second hole; when a workpiece in the heating furnace is kept at a constant temperature for a specified time, the heating furnace is cooled, a first pipeline and an air pump are firstly connected, the air pump blows into the first pipeline, the side wall of the first pipeline absorbs heat in the heating furnace, the heat is taken out through air flowing in the first pipeline, after the heating furnace is cooled to a certain temperature, a first control valve is closed, a second control valve is opened, a ring plate is rotated to enable a first hole to be aligned with a second hole, a header pipe, a second pipeline and the air pump are connected, the air pump arches, the second pipeline directly blows into the heating furnace, external air directly enters the heating furnace at the moment, the heat in the heating furnace and the heat on the workpiece are taken out, and then the first hole and the second hole are communicated, and the workpiece is discharged, and after the cooling in the heating furnace is completed, a cover plate is opened to take out the workpiece.

After adopting the structure, the invention has the beneficial effects that:

1. the front side wall of the heating furnace is provided with a loading port, a supporting plate arranged in the heating furnace can slide on a second sliding rail and then be drawn out from the loading port, so that the material can be conveniently unloaded, the upper end of a furnace body of the heating furnace is provided with a first hole and is shielded by a ring plate with a second hole, the ring plate is rotated to control the first hole to be communicated with the second hole, so that the ventilation in the heating furnace can be facilitated, the ventilation above can ensure that heat generated in the furnace body is discharged from the upper part, and the operation at the loading port cannot be influenced;

2. a pipeline is around establishing inside the heating furnace, and the lateral wall of establishing at the heating furnace is worn to establish at the both ends of a pipeline, No. two pipelines are inserted and are established on the lateral wall of heating furnace, a pipeline can absorb the heat that produces in the heating furnace, and bring the heat out through the air that flows in it, No. two pipelines are direct to blow in the air in the heating furnace, and then take the heat out, and then the heating furnace can dispel the heat through a pipeline or No. two pipelines, and then make things convenient for rapid cooling in the heating furnace, and then conveniently cool down the work piece of processing completion, make things convenient for the work piece to unload.

Drawings

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

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a sectional view a-a in fig. 2.

Fig. 4 is a sectional view B-B in fig. 2.

Description of reference numerals:

the device comprises a base 1, a heating assembly 2, a heating furnace 2-1, a filling port 2-2, a cover plate 2-3, a first sliding rail 2-4, a first sliding block 2-5, a second sliding rail 2-6, a supporting plate 2-7, a heating port 2-8, an annular groove 2-9, a ring plate 2-10, a first hole 2-11, a second hole 2-12, a cooling assembly 3, a first pipeline 3-1, a first control valve 3-2, a main pipe 3-3, a second control valve 3-4, a second pipeline 3-5, an air pump 3-6, a sleeve 4, a sliding groove 5, a second sliding block 6, a pin hole 7, a pin rod 8, a net sleeve 9, a third control valve 10, a detection port 11, a slot 12, a baffle 13 and a fireproof plate 14.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

Referring to fig. 1-4, the present embodiment comprises a base 1, a heating assembly 2, and a cooling assembly 3, wherein the heating assembly 2 is fixedly disposed on the base 1, and the cooling assembly 3 is disposed in the heating assembly 2;

the heating assembly 2 comprises a heating furnace 2-1, a cover plate 2-3 and a supporting plate 2-7, wherein the heating furnace 2-1 is riveted on a base 1, a loading port 2-2 is formed in the front side wall of the heating furnace 2-1, the cover plate 2-3 is covered on the loading port 2-2, a first sliding rail 2-4 is riveted on the base 1, a first sliding block 2-5 is arranged on the first sliding rail 2-4 in a sliding manner, the lower side edge of the cover plate 2-3 is riveted on the first sliding block 2-5, a detection port 11 is formed in the cover plate 2-3, slots 12 are formed in the left side and the right side of the detection port 11, the slots 12 are riveted on the cover plate 2-3, a baffle 13 is movably inserted in the slots 12, the baffle 13 is covered on the detection port 11, the cover plate 2-3 covers the loading port 2-2 when the heating furnace 2-1 works, at the moment, if the condition in the heating furnace 2-1 needs to be observed, the baffle 13 is pulled out upwards from the slot 12, the detection port 11 is opened at the moment, and the condition in the heating furnace 2-1 can be observed through the detection port 11;

a second sliding rail 2-6 is riveted on the lower inner side wall of the heating furnace 2-1, the front end of the second sliding rail 2-6 extends into the filling port 2-2, a supporting plate 2-7 is arranged on the second sliding rail 2-6 in a sliding manner, a net sleeve 9 is riveted on the upper surface of the supporting plate 2-7, the net sleeve 9 is wound on the side edge of the supporting plate 2-7, a plurality of combustion ports 2-8 are riveted on the lower inner side wall of the heating furnace 2-1, and the combustion ports 2-8 are wound around the supporting plate 2-7; the upper surface of the heating furnace 2-1 is provided with an annular groove 2-9, an annular plate 2-10 is movably arranged in the annular groove 2-9, the lower side wall of the annular groove 2-9 is provided with a first hole 2-11 in a penetrating way, the first hole 2-11 is communicated with the inside of the heating furnace 2-1, the second hole 2-12 is arranged on the ring plate 2-10 in a penetrating way, the second hole is communicated with the first hole 2-11, the upper end of the inner side wall of the heating furnace 2-1 is riveted with a fireproof plate 14, the fireproof plate 14 is arranged below the first hole 2-11, when the heating furnace 2-1 is normally heated through the combustion port 2-8, flame generated at the mouth of the burning port 2-8 rises, and the fireproof plate 14 is blocked below the first hole 2-11 at the moment, so that the dough is prevented from being directly sprayed out from the first hole and the second hole which are communicated with each other 2-12;

a sleeve 4 is movably arranged on the upper side wall of the heating furnace 2-1 in a penetrating manner, the sleeve 4 is arranged above the supporting plate 2-7, a sliding groove 5 is formed in the upper side wall of the heating furnace 2-1, a second sliding block 6 is riveted on the outer side wall of the sleeve 4, the second sliding block 6 is arranged in the sliding groove 5 in a sliding manner, a pin hole 7 is formed in the lower end of the second sliding block 6, a pin rod 8 is movably inserted in the pin hole 7, the pin rod 8 is movably abutted against the upper side wall of the heating furnace 2-1, the pin rod 8 is pulled out of the pin hole 7, the sleeve 4 can descend, the sleeve 4 descends and is sleeved outside a workpiece on the supporting plate 2-7, and when heating is carried out, heating flame directly burns the outer side wall of the sleeve 4 and indirectly heats the workpiece in the sleeve 4, so;

the cooling assembly 3 comprises an air pump 3-6, a first pipeline 3-1, a header pipe 3-3 and a second pipeline 3-5, wherein the first pipeline 3-1 is wound on the inner side wall of the heating furnace 2-1, the lower end of the first pipeline 3-1 is arranged at the lower end of the side wall of the heating furnace 2-1 in a penetrating manner, and the upper end of the first pipeline 3-1 is arranged at the upper end of the side wall of the heating furnace 2-1 in a penetrating manner; a header pipe 3-3 is riveted on the base 1, a plurality of second pipelines 3-5 are fixedly arranged on the header pipe 3-3 in a penetrating way, and the outlet ends of the second pipelines 3-5 are fixedly arranged on the side wall of the heating furnace 2-1 in a penetrating way; an air pump 3-6 is riveted on the base 1, the inlet end of the first pipeline 3-1 and the inlet end of the header pipe 3-3 are both connected to the outlet end of the air pump 3-6 through flanges, a first control valve 3-2 is arranged at the lower end of the first pipeline 3-1 in series, a second control valve 3-4 is arranged on the header pipe 3-3 in series, and a third control valve 10 is arranged on the second pipeline 3-5 in series.

The working principle of the specific embodiment is as follows: when a workpiece is placed into the heating furnace 2-1, the cover plate 2-3 is opened by sliding laterally, the supporting plate 2-7 is pulled out of the heating furnace 2-1, the workpiece is fixed on the supporting plate 2-7, the supporting plate 2-7 is pushed into the heating furnace 2-1, and the cover plate 2-3 is closed; heating the heating furnace 2-1, connecting the combustion port 2-8 with an external fuel gas supply pipeline and igniting, heating the combustion gas in the heating furnace 2-1 to realize the calcination of the workpiece, rotating the ring plate 2-10 when heating and combusting in the heating furnace 2-1 to ensure that the second hole 2-12 on the ring plate 2-10 is aligned with the first hole 2-11 on the heating furnace 2-1, and communicating the top end of the heating furnace 2-1 with the outside to realize ventilation; when a workpiece is heated to a specified temperature, constant-temperature heat preservation is carried out, the combustion port 2-8 is ignited intermittently at the moment, the temperature in the heating furnace 2-1 is constant, at this stage, the ring plate 2-10 is rotated, so that the first hole 2-11 and the second hole 2-12 are staggered, namely, the space in the heating furnace 2-1 is isolated from the outside, and when the combustion port 2-8 is ignited, the ring plate 2-10 is rotated, so that the first hole 2-11 and the second hole 2-12 are aligned; when the workpiece in the heating furnace 2-1 is kept at the constant temperature for a specified time, the heating furnace 2-1 is cooled, the first pipeline 3-1 and the air pump 3-6 are firstly communicated, the air pump 3-6 blows the first pipeline 3-1, the side wall of the first pipeline 3-1 absorbs the heat in the heating furnace 2-1 and carries the heat out through the air flowing in the first pipeline 3-1, when the heating furnace 2-1 is cooled to a certain temperature, the first control valve 3-2 is closed, the second control valve 3-4 is opened, the first hole 2-11 is aligned with the second hole 2-12 by rotating the ring plate 2-10, at the moment, the header pipe 3-3 and the second pipeline 3-5 are communicated with the air pump 3-6, the air pump 3-6 is arched, the second pipeline 3-5 blows directly into the heating furnace 2-1, at the moment, external air directly enters the heating furnace 2-1, heat in the heating furnace 2-1 and heat on the workpiece are taken out and discharged from the communicated first hole 2-11 and second hole 2-12, and after the temperature in the heating furnace 2-1 is reduced, the cover plate 2-3 is opened to take out the workpiece.

After adopting above-mentioned structure, this embodiment beneficial effect does:

1. the front side wall of the heating furnace 2-1 is provided with a filling port 2-2, a supporting plate 2-7 arranged in the heating furnace 2-1 can slide on a second sliding rail 2-6 and then be drawn out from the filling port 2-2 to facilitate loading and unloading, the upper end of the furnace body of the heating furnace 2-1 is provided with a first hole 2-11 and is shielded by a ring plate 2-10 with a second hole 2-12, the first hole 2-11 is controlled by rotating the ring plate 2-10 to be communicated with the second hole 2-12, so that ventilation in the heating furnace 2-1 is facilitated, the ventilation at the upper part can ensure that heat generated in the furnace body is discharged from the upper part, and the operation at the filling port 2-2 is not influenced;

2. the first pipeline 3-1 is wound inside the heating furnace 2-1, two ends of the first pipeline 3-1 penetrate through the side wall of the heating furnace 2-1, the second pipeline 3-5 is inserted into the side wall of the heating furnace 2-1, the first pipeline 3-1 can absorb heat generated in the heating furnace 2-1 and take out the heat through air flowing in the first pipeline 3-1, the second pipeline 3-5 directly blows air into the heating furnace 2-1 and further takes out the heat, and then the heating furnace 2-1 can radiate heat through the first pipeline 3-1 or the second pipeline 3-5, so that the heating furnace 2-1 can be rapidly cooled, further the processed workpiece can be conveniently cooled, and the workpiece can be conveniently discharged.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.