Bar rolling process equipment

Abstract

The utility model provides bar rolling process equipment, and relates to the technical field of rolling processes. The bar rolling process equipment comprises a heating furnace, a blooming device, a shearing machine, a continuous rolling device, a through water cooling device, a double-length flying shear and a cooling bed which are sequentially arranged, the heating furnace is used for heating blanks, the blooming device is used for rolling the blanks into intermediate blanks, the shearing machine is used for conducting head cutting, segmentation and tail cutting treatment on the intermediate blanks, and the continuous rolling device is used for rolling the blanks into the intermediate blanks. The continuous rolling device is used for continuously rolling the treated intermediate billet to form a finished bar, the through water cooling device is used for carrying out heat treatment on the finished bar, the multiple-length flying shear is used for shearing the finished bar subjected to heat treatment into sections, and the cooling bed is used for cooling the sheared finished bar. According to the utility model, the length of a steel rolling line is effectively reduced, so that the occupied area and investment cost of equipment are reduced, and the device is suitable for research, experiment and small-batch production of special steel bars made of high-added-value and novel materials.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling processes, and more specifically, to a bar rolling process equipment. Background Art

[0002] The bar rolling process is a metal forming technology used to process metal billets (usually steel or other alloys) into bars of specific sizes and shapes. In this process, the cross-sectional area of the billet is gradually reduced and its length is extended mainly through a series of rolling mills; the bar rolling process can achieve mass production and is suitable for the processing of various metal materials, so it is widely used in the manufacture of various engineering and building materials, such as steel bars, shaft parts, and bolts.

[0003] Existing bar rolling process equipment usually adopts a long process layout, with the length of the steel rolling line being more than 300 meters, large floor area, high equipment investment, and great difficulty in scheduling bar products, which restricts the further improvement of production capacity and the diversity and flexibility of rolled bar varieties to a certain extent. Summary of the Utility Model

[0004] The problem solved by the utility model is how to shorten the length of the steel rolling line.

[0005] To solve the above problems, the utility model provides a bar rolling process equipment, including a heating furnace, a primary rolling device, a shearing machine, a continuous rolling device, a water-through cooling device, a multiple-length flying shear, and a cooling bed arranged in sequence. The heating furnace is used to heat the billet, the primary rolling device is used to roll the billet into an intermediate billet, the shearing machine is used to cut the head, segment, and cut the tail of the intermediate billet, the continuous rolling device is used to continuously roll the processed intermediate billet to roll out finished bar products, the water-through cooling device is used to perform heat treatment on the finished bar products, the multiple-length flying shear is used to cut the heat-treated finished bar products into segments, and the cooling bed is used to cool the cut finished bar products.

[0006] Optionally, the bar rolling process equipment further includes a billet loading and unloading device, which is used to load the billet into the heating furnace for heating, and is also used to take out the heated billet and transport it to the primary rolling device.

[0007] Optionally, the primary rolling device includes a front roller table of the primary rolling mill, a front centering device of the primary rolling mill, a front tilting device of the primary rolling mill, and a primary rolling mill. The front roller table of the primary rolling mill is used to receive the billet from the billet loading and unloading device and transport the billet to the primary rolling mill. The front centering device of the primary rolling mill is used to center the billet with any roll pass of the primary rolling mill. The front tilting device of the primary rolling mill is used to tilt the billet.

[0008] Optionally, the blooming device further includes a blooming mill back turning machine, a blooming mill back centering device, and a blooming mill back roller table. The blooming mill back turning machine is symmetrically arranged with respect to the rolling mill center line of the blooming mill relative to the blooming mill front turning machine. The blooming mill back centering device is symmetrically arranged with respect to the rolling mill center line of the blooming mill relative to the blooming mill front centering device. The blooming mill back roller table is symmetrically arranged with respect to the rolling mill center line of the blooming mill relative to the blooming mill front roller table.

[0009] Optionally, the bar rolling process equipment further includes a continuous rolling mill front roller table and a discharging table. The continuous rolling mill front roller table is located between the shearing machine and the continuous rolling device and is used to transport the intermediate billet to the continuous rolling device. The discharging table is used to remove the intermediate billet from the continuous rolling mill front roller table.

[0010] Optionally, the continuous rolling device includes multiple horizontal rolling mills and multiple vertical rolling mills, and the multiple horizontal rolling mills and the multiple vertical rolling mills are arranged alternately in sequence.

[0011] Optionally, the bar rolling process equipment further includes a slow cooling box. The slow cooling box is located on one side of the cooling bed and is used to slowly cool the finished bar.

[0012] Optionally, the bar rolling process equipment further includes a cooling bed input roller table and a cooling bed output roller table. The cooling bed input roller table is used to transport the finished bar from the flying shear for multiple lengths to the cooling bed, and the cooling bed output roller table is used to remove the finished bar from the cooling bed.

[0013] Optionally, the bar rolling process equipment further includes a sawing machine and a sizing machine. The sawing machine is used to perform sizing sawing and segmentation on the finished bar removed from the cooling bed, and the sizing machine is used to stop the finished bar.

[0014] Optionally, the bar rolling process equipment further includes a collecting basket, which is used to collect the finished bar after sizing sawing.

[0015] The beneficial effects of the bar rolling process equipment of the present utility model are as follows: The bar rolling process equipment is set up, which consists of a heating furnace, a primary rolling device, a shearing machine, a continuous rolling device, a water-through cooling device, a multiple-length flying shear, and a cooling bed connected in sequence. The billet is heated by the heating furnace to the temperature required by the process. Then, the billet is rolled into an intermediate billet by the primary rolling device, and then the intermediate billet is subjected to head cutting, segmentation, and tail cutting by the shearing machine. After that, the intermediate billet is continuously rolled by the continuous rolling device to roll out finished bar products. Then, the finished bar products are heat-treated by the water-through cooling device arranged behind the continuous rolling device. Then, the heat-treated finished bar products are cut into segments by the multiple-length flying shear. Finally, the cut finished bar products are cooled by the cooling bed to achieve cooling offline or rapid offline. Existing rolling lines usually include more than a dozen continuous rolling mills, and the rolling of billets is achieved through the continuous rolling mills. The rolling lines are usually relatively long. Compared with the existing long-process rolling lines (with a length of more than 300 meters), in this solution, after the billet is rolled into an intermediate billet by the primary rolling device, the intermediate billet is subjected to head cutting, segmentation, and tail cutting by the shearing machine 10, and then the shorter intermediate billet is continuously rolled by the continuous rolling device. This solution requires fewer continuous rolling mills compared with the prior art (for example, one primary rolling mill and six continuous rolling mills), and the rolled bars are shorter, and the equipment size can also be shorter. Therefore, the length of the rolling line is effectively reduced (about 100 meters), thus reducing the occupied area of the equipment and the investment cost, and is suitable for the research, experiment, and small-batch production of high-value-added and new material special steel bars. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the composition of the bar rolling process equipment according to an embodiment of the present utility model;

[0017] Figure 2 It is a schematic diagram of the process flow according to an embodiment of the present utility model;

[0018] Figure 3 It is a layout schematic of the bar rolling process equipment according to an embodiment of the present utility model Figure 1 ;

[0019] Figure 4 It is a layout schematic of the bar rolling process equipment according to an embodiment of the present utility model Figure 2 ;

[0020] Figure 5 It is a layout schematic of the bar rolling process equipment according to an embodiment of the present utility model Figure 3 .

[0021] Description of the Reference Numerals:

[0022] 1. Heating furnace, 2. Billet loading and unloading device, 3. Roller table in front of blooming mill, 4. Centering device in front of blooming mill, 5. Steel turning machine in front of blooming mill, 6. Blooming mill, 61. Center line of rolling mill, 7. Steel turning machine behind blooming mill, 8. Centering device behind blooming mill, 9. Roller table behind blooming mill, 10. Shearing machine, 11. Roller table in front of continuous rolling mill, 12. Discharging table, 13. Horizontal rolling mill, 14. Vertical rolling mill, 15. Water-through cooling device, 16. Flying shear for multiple-length bars, 17. Input roller table of cooling bed, 18. Cooling bed, 19. Slow cooling box, 20. Output roller table of cooling bed, 21. Sawing machine, 22. Sizing machine, 23. Collection basket. Detailed implementation manners

[0023] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following describes in detail the specific embodiments of the present utility model with reference to the accompanying drawings. Although some embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be construed as limited to the embodiments described herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present utility model. It should be understood that the drawings and embodiments of the present utility model are only for exemplary purposes and are not used to limit the protection scope of the present utility model.

[0024] The term "including" and its variants used herein are open-ended, that is, "including but not limited to"; the term "based on" is "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiment". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts such as "first" and "second" mentioned in the present utility model are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence relationship of the functions performed by these devices, modules or units.

[0025] It should be noted that the modifications of "one" and "multiple" mentioned in the present utility model are illustrative rather than restrictive. Those skilled in the art should understand that unless clearly stated otherwise in the context, it should be understood as "one or more".

[0026] As Figure 1As shown in the figure, a bar rolling process equipment provided by an embodiment of the present utility model includes a heating furnace 1, a blooming mill, a shearing machine 10, a continuous rolling mill, a water-through cooling device 15, a flying shear for multiple-length bars 16, and a cooling bed 18 arranged in sequence. The heating furnace 1 is used to heat the billet. The blooming mill is used to roll the billet into an intermediate billet. The shearing machine 10 is used to cut the head, segment, and cut the tail of the intermediate billet. The continuous rolling mill is used to continuously roll the processed intermediate billet to roll out finished bar products. The water-through cooling device 15 is used to perform heat treatment on the finished bar products. The flying shear for multiple-length bars 16 is used to cut the heat-treated finished bar products into segments. The cooling bed 18 is used to cool the cut finished bar products.

[0027] Specifically, as shown in Figures 3 - 5 the figure ([[]] Figures 3 - 5 a complete schematic diagram of the equipment connected in sequence), the bar rolling process equipment includes a heating furnace 1, a blooming mill, a shearing machine 10, a continuous rolling mill, a water-through cooling device 15, a flying shear for multiple-length bars 16, and a cooling bed 18 arranged in sequence. As shown in Figure 2 the figure, the corresponding process flows are respectively (S1) billet heating, (S2) reciprocating rolling by the blooming mill, (S3) cutting the head / segmenting / cutting the tail, (S4) continuous rolling, (S5) water-through cooling, (S6) flying shear for multiple-length bars, and (S7) cooling bed cooling. That is, the billet is heated by the heating furnace 1 (such as an electric heating furnace or a gas heating furnace) (corresponding to S1), heated to the temperature required by the process, and then the billet is rolled into an intermediate billet by the blooming mill (corresponding to S2). Then, the intermediate billet is cut, segmented, and the tail is cut by the shearing machine 10 (such as a mechanical or hydraulic diagonal shear) (corresponding to S3). After that, the intermediate billet is continuously rolled by the continuous rolling mill to roll out finished bar products (corresponding to S4). Then, the water-through cooling device 15 arranged behind the continuous rolling mill (multiple units can be arranged at intervals according to the cooling process) is used to perform heat treatment on the finished bar products (corresponding to S5). Then, the heat-treated finished bar products (the maximum bar length does not exceed the width of the cooling bed) are cut into segments by the flying shear for multiple-length bars 16 (corresponding to S6). Finally, the cut finished bar products are cooled by the cooling bed 18 to achieve cooling offline or rapid offline (corresponding to S7).

[0028] ​In this embodiment, the bar rolling process equipment is set to consist of a heating furnace 1, a blooming mill, a shearing machine 10, a continuous rolling mill, a water-through cooling device 15, a multiple-length flying shear 16, and a cooling bed 18 connected in sequence. The heating furnace 1 heats the billet to the temperature required by the process. Then, the blooming mill rolls the billet into an intermediate billet. Next, the shearing machine 10 performs head cutting, segmentation, and tail cutting on the intermediate billet. After that, the continuous rolling mill continuously rolls the intermediate billet to roll out finished bar products. Then, the water-through cooling device 15 arranged behind the continuous rolling mill performs heat treatment on the finished bar products. Then, the multiple-length flying shear 16 cuts the heat-treated finished bar products into segments. Finally, the cooling bed 18 cools the cut finished bar products to achieve cooling offline or rapid offline. Existing rolling lines usually include more than a dozen continuous rolling mills, and the rolling of billets is achieved through the continuous rolling mills. The rolling lines are usually relatively long. Compared with the existing long-process rolling lines (with a length of more than 300 meters), in this embodiment, after the billet is rolled into an intermediate billet by the blooming mill, the shearing machine 10 performs head cutting, segmentation, and tail cutting on the intermediate billet, and then the continuous rolling mill continuously rolls the shorter intermediate billet. This embodiment requires fewer continuous rolling mills than the prior art (for example, this embodiment generally only requires one blooming mill and six continuous rolling mills), and the rolled bars are shorter, and the equipment size can also be shorter, thus effectively reducing the length of the rolling line (about 100 meters), thereby reducing the occupied area of the equipment and the investment cost, and is suitable for the research, experiment, and small-batch production of special steel bars with high added value and new materials.

[0029] Optionally, the bar rolling process equipment further includes a billet charging and discharging device 2. The billet charging and discharging device 2 is used to load the billet into the heating furnace 1 for heating, and the billet charging and discharging device 2 is also used to take out the heated billet and transport it to the blooming mill.

[0030] Specifically, as shown in Figure 3 the bar rolling process equipment further includes a billet charging and discharging device 2. The billet charging and discharging device 2 is used to load the cold billet into the heating furnace 1. After the billet is heated by the heating furnace 1, the billet charging and discharging device 2 takes out the heated billet and transports it to the front roller table 3 of the blooming mill of the blooming mill.

[0031] In this optional embodiment, the movement of the billet is realized through the billet charging and discharging device 2, effectively ensuring the continuity of the two process flows of billet heating and the reciprocating rolling of the blooming mill.

[0032] Optionally, the blooming device includes a front blooming mill roller table 3, a front centering device 4 for the blooming mill, a front steel turning machine 5 for the blooming mill, and a blooming mill 6. The front blooming mill roller table 3 is used to receive the billet from the billet charging and discharging device 2 and convey the billet to the blooming mill 6. The front centering device 4 for the blooming mill is used to center the billet with any roll pass of the blooming mill 6. The front steel turning machine 5 for the blooming mill is used to turn the billet.

[0033] Specifically, as shown in Figure 3 The blooming device includes a front blooming mill roller table 3, a front centering device 4 for the blooming mill, a front steel turning machine 5 for the blooming mill, and a blooming mill 6. The front blooming mill roller table 3 is used to receive the billet from the billet charging and discharging device 2 and then convey the billet to the blooming mill 6. The billet is centered with the roll pass of the blooming mill 6 by the front centering device 4 for the blooming mill. The billet is turned (for example, turned 90°) by the front steel turning machine 5 for the blooming mill, and the blooming mill 6 is cooperated to roll the billet reciprocally.

[0034] Among them, the blooming mill 6 can be a two-high rolling mill, and multiple passes are arranged on its rolls. The blooming mill 6 can move in a direction perpendicular to the rolling line to center different passes with the rolling line, realizing multi-pass reciprocal rolling of the billet and rolling the billet into a near-rectangular intermediate billet. Taking the blooming mill 6 having nine passes as an example, when the billet passes through pass one, pass three, pass five, pass seven, and pass nine, the billet runs from one side of the heating furnace 1 to one side of the shearing machine 10. When the billet passes through pass two, pass four, pass six, and pass eight, the billet is arranged to run from one side of the shearing machine 10 to one side of the heating furnace 1. Rolling in the order from pass one to pass nine can realize reciprocal rolling.

[0035] In this optional embodiment, the billet can be rolled into a near-rectangular intermediate billet through the blooming device composed of the front blooming mill roller table 3, the front centering device 4 for the blooming mill, the front steel turning machine 5 for the blooming mill, and the blooming mill 6, realizing the technological process of reciprocal rolling of the blooming mill.

[0036] Optionally, the blooming device further includes a rear steel turning machine 7 for the blooming mill, a rear centering device 8 for the blooming mill, and a rear blooming mill roller table 9. The rear steel turning machine 7 for the blooming mill is symmetrically arranged with the front steel turning machine 5 for the blooming mill with respect to the mill center line 61 of the blooming mill 6. The rear centering device 8 for the blooming mill is symmetrically arranged with the front centering device 4 for the blooming mill with respect to the mill center line 61 of the blooming mill 6. The rear blooming mill roller table 9 is symmetrically arranged with the front blooming mill roller table 3 with respect to the mill center line 61 of the blooming mill 6.

[0037] Specifically, as shown in Figure 3As shown, the blooming device further includes a blooming mill back turning machine 7, a blooming mill back centering device 8, and a blooming mill back roller table 9. The blooming mill back turning machine 7 and the blooming mill front turning machine 5 are symmetrically arranged with respect to the rolling mill center line 61 of the blooming mill 6. The blooming mill back centering device 8 and the blooming mill front centering device 4 are symmetrically arranged with respect to the rolling mill center line 61 of the blooming mill 6. The blooming mill back roller table 9 and the blooming mill front roller table 3 are symmetrically arranged with respect to the rolling mill center line 61 of the blooming mill 6, and cooperate with the blooming mill 6 to roll the billet reciprocally.

[0038] In this optional embodiment, by providing a blooming mill back turning machine 7 symmetrically arranged with respect to the rolling mill center line 61 of the blooming mill 6 relative to the blooming mill front turning machine 5, a blooming mill back centering device 8 symmetrically arranged with respect to the rolling mill center line 61 of the blooming mill 6 relative to the blooming mill front centering device 4, and a blooming mill back roller table 9 symmetrically arranged with respect to the rolling mill center line 61 of the blooming mill 6 relative to the blooming mill front roller table 3, the reciprocating rolling process flow of the blooming mill is realized.

[0039] Among them, before the billet enters the blooming mill 6 through the blooming mill front roller table 3, the blooming mill front centering device 4 will adjust the position of the billet, and the blooming mill front turning machine 5 will turn the billet 90° before it enters the blooming mill 6 to ensure a uniform deformation effect during the rolling process. After centering and turning, the billet enters the blooming mill 6 for rolling. After rolling, the billet is output to the blooming mill back roller table 9 through the outlet of the blooming mill 6, and then the blooming mill back turning machine 7 turns the billet 90°. The turned billet is adjusted again by the blooming mill back centering device 8, and the billet after turning and centering is reversely rolled through the blooming mill 6. The above steps can be repeated according to the rolling requirements. Through the coordinated cooperation of the blooming mill front and back turning machines and the centering device, the billet can be reciprocally rolled multiple times between the blooming mills 6.

[0040] Optionally, the bar rolling process equipment further includes a continuous rolling mill front roller table 11 and a blanking table 12. The continuous rolling mill front roller table 11 is located between the shearing machine 10 and the continuous rolling device, and is used to transport the intermediate billet to the continuous rolling device. The blanking table 12 is used to remove the intermediate billet from the continuous rolling mill front roller table 11.

[0041] Specifically, in combination with Figure 4 As shown, the bar rolling process equipment further includes a continuous rolling mill front roller table 11 and a blanking table 12. The continuous rolling mill front roller table 11 is located between the shearing machine 10 and the continuous rolling device, and is used to transport the intermediate billet to the continuous rolling device, or cooperate with the blanking table 12 to remove the segmented intermediate billet from the continuous rolling mill front roller table 11 and store it, and return it to the reheating furnace 1 for secondary heating.

[0042] In this optional embodiment, the transportation or secondary heating of the intermediate billet is realized through the continuous rolling mill front roller table 11 and the blanking table 12, ensuring the stability of the process flow.

[0043] Optionally, the continuous rolling device includes a plurality of horizontal rolling mills 13 and a plurality of vertical rolling mills 14, and the plurality of horizontal rolling mills 13 and the plurality of vertical rolling mills 14 are arranged alternately in sequence.

[0044] Specifically, in combination with Figure 4 As shown, the continuous rolling device includes a plurality of horizontal rolling mills 13 and a plurality of vertical rolling mills 14. The horizontal rolling mills 13 and the vertical rolling mills 14 are two-high rolling mills, and the plurality of horizontal rolling mills 13 and the plurality of vertical rolling mills 14 are arranged alternately in sequence, effectively increasing the output of bars.

[0045] In this optional embodiment, by arranging a plurality of horizontal rolling mills 13 and a plurality of vertical rolling mills 14 alternately in sequence, the output of bars is effectively increased.

[0046] Optionally, the bar rolling process equipment further includes a slow cooling box 19, and the slow cooling box 19 is located on one side of the cooling bed 18 and is used for slow cooling of the finished bars.

[0047] Specifically, in combination with Figure 5 As shown, the bar rolling process equipment further includes a slow cooling box 19 located on one side of the cooling bed 18. The storage and slow cooling of the bars to be slow cooled are realized through the slow cooling box 19 (corresponding to Figure 2 S12).

[0048] In this optional embodiment, the storage and slow cooling of the bars to be slow cooled are realized through the slow cooling box 19, and the slow cooling process flow is realized.

[0049] Optionally, the bar rolling process equipment further includes a cooling bed input roller table 17 and a cooling bed output roller table 20. The cooling bed input roller table 17 is used to convey the finished bars from the flying shear 16 for multiple lengths to the cooling bed 18, and the cooling bed output roller table 20 is used to move the finished bars out of the cooling bed 18.

[0050] Specifically, in combination with Figure 5 As shown, the bar rolling process equipment further includes a cooling bed input roller table 17 and a cooling bed output roller table 20. The cooling bed input roller table 17 is used to convey the finished bars from the flying shear 16 for multiple lengths to the cooling bed 18. After cooling is completed on the cooling bed 18, the finished bars are moved out of the cooling bed 18 through the cooling bed output roller table 20 and can be moved to a sawing machine 21 or the like.

[0051] Among them, according to actual process requirements, the subsequent processing process of the finished bars can be divided into the following situations:

[0052] (1) The finished bars are slowly transferred on the cooling bed 18 and air-cooled to the required temperature, then the finished bars are moved out of the cooling bed 18 through the cooling bed output roller table 20, and then fixed-length sawing and segmentation are realized through the sawing machine 21 and the fixed-length machine 22 described later (corresponding to Figure 2 S11).

[0053] (2) The finished bars are quickly transferred from the cooling bed 18 to the slow cooling box 19 and slowly cooled in the slow cooling box 19 (corresponding to Figure 2 S12), and no sizing sawing and segmentation are carried out for the time being.

[0054] (3) The finished bars are quickly transferred from the cooling bed 18 to the output roller table 20 of the cooling bed, and the finished bars are lifted and transported to the annealing furnace for annealing treatment (corresponding to Figure 2 S13), and no sizing sawing and segmentation are carried out for the time being.

[0055] In this alternative embodiment, the movement of the finished bars is realized through the input roller table 17 of the cooling bed and the output roller table 20 of the cooling bed, ensuring the continuity of the process flow.

[0056] Optionally, the bar rolling process equipment further includes a sawing machine 21 and a sizing machine 22. The sawing machine 21 is used for sizing sawing and segmentation of the finished bars removed from the cooling bed 18, and the sizing machine 22 is used for stopping the finished bars.

[0057] Specifically, as shown in Figure 5 , the bar rolling process equipment further includes a sawing machine 21 and a sizing machine 22. The sawing machine 21 (the quantity is determined by the output and production rhythm) is used for sizing sawing and segmentation of the finished bars that have been cooled to the required temperature and removed from the cooling bed 18 (corresponding to Figure 2 S11), and the sizing machine 22 stops the finished bars and cooperates with the sawing machine 21 for sizing sawing.

[0058] In this alternative embodiment, sizing sawing and segmentation are realized through the sawing machine 21 and the sizing machine 22, and finished bars with a specified length can be obtained.

[0059] Optionally, the bar rolling process equipment further includes a collecting basket 23, and the collecting basket 23 is used for collecting the finished bars after sizing sawing.

[0060] Specifically, as shown in Figure 5 , the bar rolling process equipment further includes a collecting basket 23, and the finished bars after sizing sawing are collected through the collecting basket 23, that is, the finished bars with a specified length are collected.

[0061] In this alternative embodiment, the finished bars after sizing sawing are collected through the collecting basket 23, effectively accelerating the process flow.

[0062] Although the present utility model is disclosed as above, the protection scope of the present utility model is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model, and these changes and modifications will all fall within the protection scope of the present utility model.

Claims

1. A bar rolling process equipment, characterized in that: The invention comprises a heating furnace (1), a rough rolling device, a shearing machine (10), a continuous rolling device, a water-penetrating cooling device (15), a multiple-length flying shear (16) and a cooling bed (18) which are arranged in sequence, wherein the heating furnace (1) is used to heat the blank, the rough rolling device is used to roll the blank into an intermediate blank, the shearing machine (10) is used to perform head cutting, segmentation and tail cutting on the intermediate blank, the continuous rolling device is used to continuously roll the processed intermediate blank to produce a finished bar, the water-penetrating cooling device (15) is used to perform heat treatment on the finished bar, the multiple-length flying shear (16) is used to shear the finished bar after heat treatment into segments, and the cooling bed (18) is used to cool the finished bar after shearing.

2. The bar rolling process equipment according to claim 1, characterized in that: It also comprises a billet loading and unloading device (2), which is used to load the billet into the heating furnace (1) for heating, and is also used to take out the heated billet and transport it to the initial rolling device.

3. The bar rolling process equipment according to claim 2, characterized in that: The initial rolling device comprises a roller table (3) in front of the initial rolling mill, a centering device (4) in front of the initial rolling mill, a steel turning machine (5) in front of the initial rolling mill and a primary rolling mill (6), wherein the roller table (3) in front of the initial rolling mill is used to receive the billet from the billet unloading device (2) and transport the billet to the initial rolling mill (6), the centering device (4) in front of the initial rolling mill is used to center the billet on any roll hole type of the initial rolling mill (6), and the steel turning machine (5) in front of the initial rolling mill is used to turn the billet.

4. The bar rolling process equipment according to claim 3, characterized in that: The initial rolling device also includes a steel turning machine (7) after the initial rolling mill, a centering device (8) after the initial rolling mill and a roller table (9) after the initial rolling mill. The steel turning machine (7) after the initial rolling mill and the steel turning machine (5) before the initial rolling mill are symmetrically arranged relative to the rolling mill center line (61) of the initial rolling mill (6). The centering device (8) after the initial rolling mill and the centering device (4) before the initial rolling mill are symmetrically arranged relative to the rolling mill center line (61) of the initial rolling mill (6). The roller table (9) after the initial rolling mill and the roller table (3) before the initial rolling mill are symmetrically arranged relative to the rolling mill center line (61) of the initial rolling mill (6).

5. The bar rolling process equipment according to claim 1, characterized in that: It also includes a front roller conveyor (11) of the continuous rolling mill and a material unloading stand (12), wherein the front roller conveyor (11) of the continuous rolling mill is located between the shearing machine (10) and the continuous rolling device and is used to transport the intermediate billet to the continuous rolling device, and the material unloading stand (12) is used to move the intermediate billet out of the front roller conveyor (11) of the continuous rolling mill.

6. The bar rolling process equipment according to claim 1, characterized in that: The continuous rolling device comprises a plurality of horizontal rolling mills (13) and a plurality of vertical rolling mills (14), and the plurality of horizontal rolling mills (13) and the plurality of vertical rolling mills (14) are arranged alternately in sequence.

7. The bar rolling process equipment according to claim 1, characterized in that: It also includes a slow cooling box (19), which is located on one side of the cooling bed (18) and is used for slow cooling of the finished bar.

8. The bar rolling process equipment according to claim 1, characterized in that: It also includes a cooling bed input roller (17) and a cooling bed output roller (20), wherein the cooling bed input roller (17) is used to transport the finished bar from the multiple-length flying shear (16) to the cooling bed (18), and the cooling bed output roller (20) is used to move the finished bar out of the cooling bed (18).

9. The bar rolling process equipment according to claim 8, characterized in that: It also comprises a sawing machine (21) and a sizing machine (22), wherein the sawing machine (21) is used to saw and segment the finished bar material removed from the cooling bed (18) into a fixed length, and the sizing machine (22) is used to stop the finished bar material.

10. The bar rolling process equipment according to claim 9, characterized in that: It also comprises a collecting basket (23), wherein the collecting basket (23) is used to collect the finished rods after being sawed to a fixed length.

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