Thermal circulation type tempering furnace

Abstract

The utility model discloses a thermal circulation type tempering furnace which comprises a furnace body, the outer side of the furnace body is fixedly connected with a heat preservation shell, the inner bottom of the heat preservation shell is fixedly connected with an annular groove body, a first connecting pipe is movably arranged in the annular groove body, and the outer surface of the first connecting pipe is fixedly connected with a spiral pipeline. High-temperature gas enters the spiral pipeline, the temperature of the interior of the heat preservation shell and the temperature of the outer surface of the furnace body are increased, heat preservation is conducted on the outer side of the furnace body, heat loss is reduced, the gas is finally discharged through a second connecting pipe, a first servo motor is started, and an output shaft of the first servo motor drives a rotating disc to rotate. The linkage rod drives the second connecting pipe to swing back and forth along the penetrating opening, the spiral pipeline repeatedly rotates on the outer surface of the furnace body, the outer surface of the furnace body is evenly heated, and high-temperature waste gas is recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of tempering furnaces, in particular to a thermal circulation tempering furnace. Background Art

[0002] Molds are the main processing tools for manufacturing parts in industrial sectors such as machinery manufacturing, radio instruments, motors, and electrical appliances. The quality of the mold directly affects the quality of the pressure processing process, the precision output of the product, and the production cost. In addition to reasonable structural design and processing accuracy, the quality and service life of the mold are mainly affected by the mold material and heat treatment. When performing heat treatment, a pit tempering furnace is required to temper the mold steel.

[0003] Traditional tempering furnaces continuously discharge high-temperature waste gas during the tempering process. The high-temperature waste gas is directly discharged into the atmosphere, which is easy to cause pollution. The existing tempering furnaces do not utilize the waste gas, which is very environmentally unfriendly and causes a waste of resources. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a heat circulation tempering furnace.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a heat circulation tempering furnace, including a furnace body, the outer side of the furnace body is fixedly connected to a heat-insulating outer shell, the inner bottom of the heat-insulating outer shell is fixedly connected to an annular groove body, a first connecting pipe is movably arranged inside the annular groove body, the outer surface of the first connecting pipe is fixedly connected to a spiral pipe, the top of the spiral pipe is fixedly connected to a second connecting pipe, a first power component for driving the second connecting pipe to swing is installed on the side wall of the heat-insulating outer shell, a furnace cover is installed on the top of the furnace body, a second power component for driving the furnace cover to rise and fall is installed on the side wall of the heat-insulating outer shell, the top of the furnace cover is fixedly connected to a smoke exhaust pipe, and the top of the smoke exhaust pipe is installed with a reflux component.

[0006] As a further description of the above technical solution:

[0007] The first power assembly includes a first connecting seat fixedly connected to the side wall of the heat-insulating outer shell, a first servo motor is fixedly connected to the lower surface of the first connecting seat, a rotating disk is fixedly connected to the output shaft of the first servo motor, a linkage rod is rotatably connected to the eccentric portion of the upper surface of the rotating disk, a mounting block is fixedly connected to the outer surface of the second connecting tube, and the other end of the linkage rod is rotatably connected to the mounting block.

[0008] As a further description of the above technical solution:

[0009] A through opening is provided on the top of the heat-insulating outer shell, the second connecting pipe is movably arranged inside the through opening, an arc plate is fixedly connected to the outer surface of the second connecting pipe, and the arc plate is fitted with the inner top of the heat-insulating outer shell.

[0010] As a further description of the above technical solution:

[0011] The second power assembly includes a second connecting seat fixedly connected to the side wall of the heat-insulating outer shell, the upper surface of the second connecting seat is fixedly connected to a second servo motor, the output shaft of the second servo motor is fixedly connected to a threaded rod, the outer surface of the threaded rod is threadedly connected to a lifting plate, and the lifting plate is fixedly connected to the top of the furnace cover.

[0012] As a further description of the above technical solution:

[0013] The upper surface of the second connecting seat is fixedly connected to a limiting rod, and the lifting plate is slidably connected to the outer surface of the limiting rod.

[0014] As a further description of the above technical solution:

[0015] The reflux assembly includes a mounting tube fixedly connected to the top of the smoke exhaust chimney, a filter fixedly connected to the end of the mounting tube, a first telescopic hose fixedly connected to the outlet of the filter, a second telescopic hose fixedly connected to the end of the first telescopic hose, a second telescopic hose fixedly connected to the first connecting tube, and the first telescopic hose is fixedly penetrated and fixed to the heat-insulating outer shell.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the prior art, in the heat circulation tempering furnace, high-temperature gas enters the interior of the spiral pipe, increases the temperature inside the heat-insulating shell and the outer surface of the furnace body, insulates the outer side of the furnace body, reduces heat loss, and the gas is finally discharged through the second connecting pipe. The first servo motor is started, and the output shaft of the first servo motor rotates with the rotating disk, so that the linkage rod swings the second connecting pipe back and forth along the through-hole, and the spiral pipe repeatedly rotates on the outer surface of the furnace body, so that the outer surface of the furnace body is evenly heated, and the high-temperature exhaust gas is recycled.

[0018] 2. Compared with the prior art, the heat circulation tempering furnace starts the second servo motor, and the output shaft of the second servo motor rotates with the threaded rod, so that the lifting plate can rise with the furnace cover, which is convenient for the staff to take out the workpieces in the furnace body, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a first-perspective stereoscopic diagram of a thermal cycle tempering furnace proposed by the utility model;

[0020] Figure 2 This is a second perspective stereogram of a heat circulation tempering furnace proposed by the utility model;

[0021] Figure 3 The utility model is a schematic diagram of the furnace body structure of a heat circulation tempering furnace.

[0022] Legend:

[0023] 1. Furnace body; 2. Insulation shell; 3. Annular groove body; 4. First connecting pipe; 5. Spiral pipe; 6. Second connecting pipe; 7. First servo motor; 8. Rotating plate; 9. Linkage rod; 10. Through-hole; 11. Arc plate; 12. Furnace cover; 13. Second servo motor; 14. Threaded rod; 15. Lifting plate; 16. Limit rod; 17. Smoke exhaust pipe; 18. Mounting pipe; 19. Filter; 20. First telescopic hose; 21. Second telescopic hose. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figures 1 to 3 The utility model provides a heat circulation tempering furnace: comprising a furnace body 1, a heat preservation shell 2 is fixedly connected to the outer side of the furnace body 1, an annular groove body 3 is fixedly connected to the inner bottom of the heat preservation shell 2, a first connecting pipe 4 is movably arranged inside the annular groove body 3, a spiral pipe 5 is fixedly connected to the outer surface of the first connecting pipe 4, a second connecting pipe 6 is fixedly connected to the top of the spiral pipe 5, a through-hole 10 is opened on the top of the heat preservation shell 2, the second connecting pipe 6 is movably arranged inside the through-hole 10, an arc plate 11 is fixedly connected to the outer surface of the second connecting pipe 6, the arc plate 11 is fitted with the inner top of the heat preservation shell 2, the arc plate 11 can be made of rubber material, and is tightly fitted with the through-hole 10 to reduce the heat loss inside the heat preservation shell 2;

[0026] Reference Figure 2 and Figure 3In order to achieve the purpose of swinging the second connecting pipe 6, a first power assembly driving the second connecting pipe 6 to swing is installed on the side wall of the heat-insulating shell 2, and the first power assembly includes a first connecting seat fixedly connected to the side wall of the heat-insulating shell 2, and a first servo motor 7 is fixedly connected to the lower surface of the first connecting seat, and a rotating disk 8 is fixedly connected to the output shaft of the first servo motor 7, and a linkage rod 9 is rotatably connected to the eccentric portion of the upper surface of the rotating disk 8, and a mounting block is fixedly connected to the outer surface of the second connecting pipe 6, and the other end of the linkage rod 9 is rotatably connected to the mounting block;

[0027] Reference Figure 1 In order to achieve the purpose of lifting the furnace cover 12, a furnace cover 12 is installed on the top of the furnace body 1, and a second power assembly for driving the furnace cover 12 to lift is installed on the side wall of the heat-insulating shell 2. The second power assembly includes a second connecting seat fixedly connected to the side wall of the heat-insulating shell 2, and a second servo motor 13 is fixedly connected to the upper surface of the second connecting seat. The output shaft of the second servo motor 13 is fixedly connected to a threaded rod 14, and the outer surface of the threaded rod 14 is threadedly connected to a lifting plate 15. The lifting plate 15 is fixedly connected to the top of the furnace cover 12, and a limiting rod 16 is fixedly connected to the upper surface of the second connecting seat. The lifting plate 15 is slidably connected to the outer surface of the limiting rod 16;

[0028] Reference Figure 3 In order to achieve the purpose of utilizing high-temperature flue gas, a smoke exhaust chimney 17 is fixedly connected to the top of the furnace cover 12, and a reflux assembly is installed on the top of the smoke exhaust chimney 17. The reflux assembly includes a mounting pipe 18 fixedly connected to the top of the smoke exhaust chimney 17, and a filter 19 is fixedly connected to the end of the mounting pipe 18. A first telescopic hose 20 is fixedly connected to the outlet of the filter 19, and a second telescopic hose 21 is fixedly connected to the end of the first telescopic hose 20. The end of the second telescopic hose 21 is fixedly connected to the first connecting pipe 4. The first telescopic hose 20 is fixedly penetrated and fixed to the thermal insulation shell 2. The first telescopic hose 20 is arranged to ensure that the furnace cover 12 can be raised and lowered normally, and the second telescopic hose 21 is arranged to ensure that the spiral pipe 5 can rotate normally.

[0029] Working principle:

[0030] When in use, the high-temperature exhaust gas inside the furnace body 1 enters the filter 19 through the smoke exhaust pipe 17 and the installation pipe 18 for filtration, then enters the first connecting pipe 4 through the first telescopic hose 20 and the second telescopic hose 21, and then enters the spiral pipe 5, thereby increasing the temperature inside the heat-insulating shell 2 and the outer surface of the furnace body 1, insulating the outer side of the furnace body 1, and reducing heat loss. The gas is finally discharged through the second connecting pipe 6, and the first servo motor 7 is started. The output shaft of the first servo motor 7 rotates with the rotating disk 8, so that the linkage rod 9 swings the second connecting pipe 6 back and forth along the through-hole 10, and the spiral pipe 5 repeatedly rotates on the outer surface of the furnace body 1, so that the outer surface of the furnace body 1 is heated evenly.

[0031] The second servo motor 13 is started, and the output shaft of the second servo motor 13 rotates with the threaded rod 14, so that the lifting plate 15 can lift the furnace cover 12, which is convenient for the staff to take out the workpiece in the furnace body 1, and has strong practicality.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A thermal cycle tempering furnace, comprising a furnace body (1), characterized in that: The outer side of the furnace body (1) is fixedly connected to a heat-insulating outer shell (2), the inner bottom of the heat-insulating outer shell (2) is fixedly connected to an annular groove body (3), a first connecting pipe (4) is movably arranged inside the annular groove body (3), the outer surface of the first connecting pipe (4) is fixedly connected to a spiral pipe (5), the top of the spiral pipe (5) is fixedly connected to a second connecting pipe (6), a first power component for driving the second connecting pipe (6) to swing is installed on the side wall of the heat-insulating outer shell (2), a furnace cover (12) is installed on the top of the furnace body (1), a second power component for driving the furnace cover (12) to rise and fall is installed on the side wall of the heat-insulating outer shell (2), the top of the furnace cover (12) is fixedly connected to a smoke exhaust pipe (17), and a reflux component is installed on the top of the smoke exhaust pipe (17).

2. A thermal cycle tempering furnace according to claim 1, characterized in that: The first power assembly comprises a first connection seat fixedly connected to the side wall of the heat-insulating outer shell (2); a first servo motor (7) is fixedly connected to the lower surface of the first connection seat; an output shaft of the first servo motor (7) is fixedly connected to a rotating disk (8); an eccentric portion of the upper surface of the rotating disk (8) is rotatably connected to a linkage rod (9); an outer surface of the second connection tube (6) is fixedly connected to a mounting block; the other end of the linkage rod (9) is rotatably connected to the mounting block.

3. A thermal cycle tempering furnace according to claim 1, characterized in that: A through opening (10) is provided at the top of the heat-insulating outer shell (2); the second connecting pipe (6) is movably arranged inside the through opening (10); an arc plate (11) is fixedly connected to the outer surface of the second connecting pipe (6); the arc plate (11) is fitted with the inner top of the heat-insulating outer shell (2).

4. The thermal cycle tempering furnace according to claim 1, characterized in that: The second power assembly comprises a second connection seat fixedly connected to the side wall of the heat-insulating outer shell (2); a second servo motor (13) is fixedly connected to the upper surface of the second connection seat; an output shaft of the second servo motor (13) is fixedly connected to a threaded rod (14); an outer surface of the threaded rod (14) is threadedly connected to a lifting plate (15); and the lifting plate (15) is fixedly connected to the top of the furnace cover (12).

5. A thermal cycle tempering furnace according to claim 4, characterized in that: The upper surface of the second connection seat is fixedly connected to a limit rod (16), and the lifting plate (15) is slidably connected to the outer surface of the limit rod (16).

6. The thermal cycle tempering furnace according to claim 1, characterized in that: The reflux assembly comprises a mounting tube (18) fixedly connected to the top of the smoke exhaust pipe (17); the end of the mounting tube (18) is fixedly connected to a filter (19); the outlet of the filter (19) is fixedly connected to a first telescopic hose (20); the end of the first telescopic hose (20) is fixedly connected to a second telescopic hose (21); the end of the second telescopic hose (21) is fixedly connected to a first connecting tube (4); and the first telescopic hose (20) is fixedly penetrated and fixed to the heat-insulating outer shell (2).

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