Heating device capable of improving performance of cold-rolled ribbed steel bars

Abstract

The utility model discloses a heating device capable of improving the performance of cold-rolled ribbed steel bars, and belongs to the technical field of rolled steel bar heating devices. The device comprises a heating furnace, a driving mechanism is arranged at the top of the heating furnace, a push rod is arranged at the output end of the driving mechanism, and a turning plate mechanism assembly is arranged at the top end of the driving mechanism; the turning plate mechanism assembly comprises a hydraulic telescopic cylinder, a telescopic rod, a turning support, a turning plate and a movable support, a first through hole and a second through hole are formed in the surface of the turning support, a first hinge shaft is installed in the first through hole, and a second hinge shaft is installed in the second through hole; the overturning support is movably connected with the push rod through a second hinge shaft, and the overturning support is movably connected with the telescopic rod through a first hinge shaft. The structure and internal stress of grains can be refined through heat treatment of the heating furnace, so that the defects of medium-frequency induction heating are overcome, and the purpose of adjusting the performance of the cold-rolled ribbed steel bars is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of rolled steel heating device, more particularly to a kind of heating device capable of improving the performance of cold-rolled ribbed steel. BACKGROUND

[0002] Cold-rolled ribbed steel is hot-rolled round billet after cold rolling, with the rib of the surface along the length direction evenly distributed steel. Through the cold hardening of rolled steel, performance changes, strength increases but elongation decreases, and the performance of the raw material hot-rolled billet has the greatest impact on the final performance of the cold-rolled ribbed steel product. Under the condition that the rolling compression ratio is basically determined, the adjustment of physical performance indexes such as strength and elongation is realized by stress relief through conventional cold rolling. Its principle is to release the stress generated during rolling by bending several times to change the performance, but this method has weak adjustment ability and poor effect. There is also an online medium-frequency induction heating device on the market. The rolled steel passes through the device, uses high-temperature short-time rapid heating to stabilize the tempering, refines the grain, improves the internal organization and product performance, and the effect is greatly improved. However, this method has high investment cost and poor performance improvement stability. SUMMARY

[0003] 1. The technical problem to be solved by the utility model

[0004] In view of the defects and deficiencies of the prior art, the utility model provides a heating device capable of improving the performance of cold-rolled ribbed steel. The heat treatment of the heating furnace can refine the grain structure and internal stress to overcome the deficiency of medium-frequency induction heating and achieve the purpose of adjusting the performance of cold-rolled ribbed steel.

[0005] 2. Technical scheme

[0006] To achieve the above purpose, the utility model provides the technical scheme as follows:

[0007] The utility model relates to a kind of heating device capable of improving the performance of cold-rolled ribbed steel, including heating furnace, the side of heating furnace is provided with import door, and the other side of heating furnace is provided with export door, and the bottom of heating furnace is provided with track;

[0008] The top of the heating furnace is provided with a driving mechanism, the output end of the driving mechanism is provided with a push rod, and the top end of the driving mechanism is provided with a flap mechanism assembly.

[0009] The turnover plate mechanism assembly comprises a hydraulic telescopic cylinder, a telescopic rod, a turnover support, a turnover plate and a movable support, the hydraulic telescopic cylinder is installed on the upper surface of the driving mechanism through the movable support, the output end of the hydraulic telescopic cylinder is provided with the telescopic rod, the front end of the telescopic rod is provided with the turnover support, the surface of the turnover support is respectively provided with a first through hole and a second through hole, the first through hole is provided with a first hinged shaft, and the second through hole is provided with a second hinged shaft.

[0010] The turnover support is movably connected with the push rod through the second hinged shaft, and the turnover support is movably connected with the telescopic rod through the first hinged shaft.

[0011] Further, the input end of the heating furnace is provided with a cold rolling take-up machine, the input end of the cold rolling take-up machine is provided with a cold rolling mill, and the full-load spool after being taken up by the cold rolling take-up machine enters the heating furnace through the import door.

[0012] Further, the heating furnace can adopt an electric heating furnace, an oil combustion heating furnace or a liquefied gas combustion heating furnace, and the heating furnace can set a corresponding heating temperature according to the performance regulation and control requirement of the cold rolled ribbed steel bar.

[0013] Further, the driving mechanism drives the push rod to move forward and backward, and the hydraulic telescopic cylinder drives the turnover support to rotate around the second hinged shaft through the telescopic rod.

[0014] Further, the input end of the track extends to the bottom of the output end of the cold rolling take-up machine.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the technical scheme has the following beneficial effects:

[0017] The heat treatment of the heating furnace can refine the grain structure and internal stress, so as to overcome the deficiency of the medium-frequency induction heating and achieve the purpose of adjusting the performance of the cold rolled ribbed steel bar. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a whole structure diagram of the utility model;

[0019] Fig. 2 It is a local structure diagram of the utility model;

[0020] Fig. 3 It is a turnover plate mechanism assembly structure diagram of the utility model;

[0021] Fig. 4 It is a driving mechanism retraction state diagram of the utility model;

[0022] Fig. 5 It is a turnover plate lifting state diagram of the utility model;

[0023] Fig. 6 The no-load H-shaped wheel replacement state diagram of the utility model.

[0024] In the figure: 1, no-load H-shaped wheel; 2, push rod; 3, flap mechanism assembly; 31, hydraulic telescopic cylinder; 32, telescopic rod; 33, turnover support; 331, first through hole; 332, second through hole; 333, first hinged shaft; 334, second hinged shaft; 34, flap; 35, movable support; 4, import door; 5, driving mechanism; 6, heating furnace; 7, export door; 8, full-load H-shaped wheel; 9, track; 10, cold rolling take-up machine; 11, cold rolling mill. DETAILED DESCRIPTION

[0025] The utility model will be described further in connection with the drawings and examples:

[0026] Example 1

[0027] From Figs. 1-6 It can be seen that the heating device capable of improving the performance of cold-rolled ribbed steel bars of the embodiment comprises a heating furnace 6, an import door 4 is arranged on one side of the heating furnace 6, and an export door 7 is arranged on the other side of the heating furnace 6; the bottom of the heating furnace 6 is provided with a track 9;

[0028] The input end of the heating furnace 6 is provided with a cold rolling take-up machine 10, the input end of the cold rolling take-up machine 10 is provided with a cold rolling mill 11, the full-load H-shaped wheel 8 after being taken up by the cold rolling take-up machine 10 enters the heating furnace 6 through the import door 4, and the input end of the track 9 extends to the bottom of the output end of the cold rolling take-up machine 10; the movement and conveying of the full-load H-shaped wheel 8 on the track 9 are facilitated.

[0029] The heating furnace 6 can adopt an electric heating furnace, an oil combustion heating furnace or a liquefied gas combustion heating furnace, and the heating furnace 6 can set the corresponding heating temperature according to the performance regulation and control requirements of the cold-rolled ribbed steel bar.

[0030] The length of the heating furnace 6 is determined according to the number of the full-load H-shaped wheels 8 in the heating furnace 6, and the number of the full-load H-shaped wheels 8 can depend on the production efficiency of the cold-rolled ribbed steel bar and the heating time.

[0031] The top of the heating furnace 6 is provided with a driving mechanism 5, the output end of the driving mechanism 5 is provided with a push rod 2, and the top end of the driving mechanism 5 is provided with a flap mechanism assembly 3.

[0032] The turnover mechanism assembly 3 comprises a hydraulic telescopic cylinder 31, a telescopic rod 32, a turnover support 33, a turnover plate 34 and a movable support 35. The hydraulic telescopic cylinder 31 is installed on the upper surface of the driving mechanism 5 through the movable support 35. The output end of the hydraulic telescopic cylinder 31 is provided with the telescopic rod 32. The front end of the telescopic rod 32 is provided with the turnover support 33. The surface of the turnover support 33 is respectively provided with a first through hole 331 and a second through hole 332. The first through hole 331 is provided with a first hinged shaft 333. The second through hole 332 is provided with a second hinged shaft 334.

[0033] The turnover support 33 is movably connected with the push rod 2 through the second hinged shaft 334. The turnover support 33 is movably connected with the telescopic rod 32 through the first hinged shaft 333.

[0034] The driving mechanism 5 drives the push rod 2 to move forward and backward. The hydraulic telescopic cylinder 31 drives the turnover support 33 to rotate around the second hinged shaft 334 through the telescopic rod 32.

[0035] Embodiment 2

[0036] From Figs. 1-6 It can be seen that the working steps of the heating device for improving the performance of cold-rolled ribbed steel bars are as follows:

[0037] Step one: unload the full-load spool 8 rolled by the cold rolling mill 11 and wound by the cold rolling take-up machine 10, and enter the track 9;

[0038] Step two: open the inlet door 4 and the outlet door 7 of the heating furnace 6 at the same time. The push rod 2 is driven by the driving mechanism 5 to extend forward to the position. In the extension process, the hydraulic telescopic cylinder 31 also synchronously drives the telescopic rod 32 to elongate, so that the turnover plate 34 is synchronously extended forward with the push rod 2;

[0039] Step three: after the push rod 2 extends to the position, the hydraulic telescopic cylinder 31 continuously drives the telescopic rod 32 to elongate, so that the turnover plate 34 rotates around the second hinged shaft 334. The turnover plate 34 is in a turnover state;

[0040] Step four: start the driving mechanism 5 to drive the push rod 2 to be retracted. The hydraulic telescopic cylinder 31 also synchronously drives the telescopic rod 32 to be retracted. In the retraction process, the turnover plate 34 drives the full-load spool 8 to enter the heating furnace 6. At the same time, the tail full-load spool 8 in the heating furnace 6 is ejected from the heating furnace 6;

[0041] Step five: close the inlet door 4 and the outlet door 7. According to the requirement of the heat treatment temperature rising curve of the steel bar, start the heating furnace 6 to heat the cold-rolled ribbed steel bars on the internal full-load spool 8;

[0042] Step six: when the heating time meets the requirements, repeat the above steps, the full load I-beam 8 will be heated furnace 6 tail I-beam out, complete the performance improvement of cold rolled ribbed steel bar; in turn cycle can realize the continuity operation.

[0043] Full load I-beam 8 is unloaded, can be empty load I-beam 1 from the gap between the heated furnace 6 and the cold rolling take-up 10 into the cold rolling take-up 10 to replace;

[0044] The utility model discloses a heat treatment can refine the grain structure and internal stress of heating furnace 6, to overcome the deficiency of intermediate frequency induction heating, reach the purpose of adjusting the performance of cold rolled ribbed steel bar.

[0045] The above describes the utility model and its implementation mode schematically, and the description is not restrictive, and the shown in the drawing is only one of the implementation mode of the utility model, and the actual structure is not limited to this. Therefore, if the ordinary skilled person in the art is inspired, without departing from the utility model creation tenet, does not create the structure mode and the embodiment similar to this technical scheme by the creative design, all should belong to the protection scope of the utility model.

Claims

1. A heating device capable of improving the performance of cold-rolled ribbed steel bars, comprising a heating furnace (6), characterized in that: The heating furnace (6) is provided with an entrance door (4) on one side, an exit door (7) on the other side, and a track (9) at the bottom; The heating furnace (6) is provided with a driving mechanism (5) at the top, the output end of the driving mechanism (5) is provided with a push rod (2), and the top end of the driving mechanism (5) is provided with a flap mechanism assembly (3); The flap mechanism assembly (3) comprises a hydraulic telescopic cylinder (31), a telescopic rod (32), a turnover support (33), a flap (34) and a movable support (35), the hydraulic telescopic cylinder (31) is installed on the upper surface of the driving mechanism (5) through the movable support (35), the output end of the hydraulic telescopic cylinder (31) is provided with the telescopic rod (32), the front end of the telescopic rod (32) is provided with the turnover support (33), the surface of the turnover support (33) is respectively provided with a first through hole (331) and a second through hole (332), the first through hole (331) is provided with a first hinge shaft (333), and the second through hole (332) is provided with a second hinge shaft (334); The turnover support (33) is movably connected with the push rod (2) through the second hinge shaft (334), and the turnover support (33) is movably connected with the telescopic rod (32) through the first hinge shaft (333).

2. The heating device capable of improving the performance of cold-rolled ribbed steel bars according to claim 1, characterized in that: The input end of the heating furnace (6) is provided with a cold rolling take-up machine (10), the input end of the cold rolling take-up machine (10) is provided with a cold rolling mill (11), and the full-load spool (8) after being taken up by the cold rolling take-up machine (10) enters the heating furnace (6) through the entrance door (4).

3. The heating device capable of improving the performance of cold-rolled ribbed steel bars according to claim 1, characterized in that: The heating furnace (6) can adopt an electric heating furnace, an oil combustion heating furnace or a liquefied gas combustion heating furnace, and the heating furnace (6) can set the corresponding heating temperature according to the performance regulation and control requirements of the cold rolled ribbed steel bar.

4. The heating device capable of improving the performance of cold-rolled ribbed steel bars according to claim 1, characterized in that: The driving mechanism (5) drives the push rod (2) to move forward and backward, the hydraulic telescopic cylinder (31) drives the turnover support (33) to rotate around the second hinge shaft (334) through the telescopic rod (32).

5. The heating device capable of improving the performance of cold-rolled ribbed steel bars according to claim 1, characterized in that: The input end of the track (9) extends to the bottom of the output end of the cold rolling take-up machine (10).

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