Reversible rolling system

By introducing a lead-up device and tension device into the reversible cold rolling system, the problems of scrap cutting and tension in the coil rolling process are solved, and the material yield and coil quality are improved.

CN222919326UActive Publication Date: 2025-05-30JIANGMEN HUAMU METAL PROD CO LTD
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Patent Information

Application Number
CN202421521308.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2025-05-30
Estimated Expiration
2034-06-28

AI Technical Summary

Technical Problem

In the existing reversible cold rolling technology, it is difficult for strip steel to achieve the target thickness during the rolling process, resulting in large volume of coil cutting and low material yield. At the same time, the tension of strip steel after rolling is insufficient, affecting the quality of the steel coil.

Method used

A reversible rolling system is designed to weld the strip to the lead through a lead butt device, and the lead is used to replace the scrap cutting section between the coiler and the rolling mill, and the tension of the strip is adjusted through a tension device.

Benefits of technology

The coil coil is effectively avoided, the yield of the rolling mill is improved, and the quality of the coil is improved by adjusting the strip tension.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a reversible rolling system which comprises a leading tape butt joint device, an uncoiler, a rolling mill, a tension device and a coiler which are arranged in sequence, the leading tape butt joint device is used for welding leading tapes and strip steel, and the leading tape butt joint device comprises a workbench, a first pressing mechanism, a welding machine and a second pressing mechanism. The first pressing mechanism, the welding machine and the second pressing mechanism are sequentially arranged on the upper end face of the workbench, the first pressing mechanism is used for pressing a leading tape, the second pressing mechanism is used for pressing strip steel, the tension device comprises a rack, at least two supporting rollers and a pressing roller, the supporting rollers and the pressing roller are arranged in parallel at intervals, the supporting rollers are fixedly installed on the rack, and the pressing roller is fixedly installed on the rack. The rack is provided with a driving mechanism which is connected with the pressing roller and drives the pressing roller to move up and down. According to the reversible rolling system provided by the embodiment of the utility model, the strip steel can be butted with the leading tape to prevent the roll center of the steel roll from being cut off, and the tension of the strip steel is adjusted through the tension device, so that the quality of the steel roll is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of metal strip processing, in particular to a reversible rolling system. Background Art

[0002] Cold rolled strip production is usually based on continuous cold rolling, while reversible cold rolling is generally used to adjust product varieties or product specifications. In recent years, with the growing demand for small batches, multiple varieties, short cycles and other personalized needs of cold rolled thin plate products in the user market, reversible cold rolling has received more and more attention.

[0003] In the prior art, the reversible rolling process of strip steel is to feed the strip steel into the rolling mill for rolling through the uncoiler, and then coil it through the coiler to obtain a rolled steel coil. However, there are two main problems in this process. First, due to the structural defects of the reversible rolling mill itself, the strip steel between the coiler and the rolling mill cannot be rolled to the target thickness and can only be cut into scrap, resulting in a certain amount of core cutting for each roll of the rolled steel coil, causing the yield rate of the reversible rolling mill to be generally lower than that of the continuous rolling mill; second, when the coiler coils the strip steel, the strip steel needs to have a certain tension to ensure the coiling quality, but the strip steel tension after rolling is insufficient, resulting in poor quality of the steel coil. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a reversible rolling system, which can avoid the waste of the steel coil core by docking the strip steel with the guide belt and adjust the tension of the strip steel through the tension device, thereby improving the quality of the steel coil.

[0005] A reversible rolling system according to the utility model comprises a lead tape docking device, an uncoiler, a rolling mill, a tension device and a coiler which are arranged in sequence, the lead tape docking device is used to weld the lead tape to the strip steel, the lead tape docking device comprises a workbench, a first clamping mechanism, a welder and a second clamping mechanism, the first clamping mechanism, the welder and the second clamping mechanism are arranged in sequence on the upper end surface of the workbench, the first clamping mechanism is used to clamp the lead tape, the second clamping mechanism is used to clamp the strip steel, the tension device comprises a frame, a support roller and a pressure roller, the support roller and the pressure roller are arranged in parallel and spaced apart, at least two support rollers are arranged, the support roller is fixedly mounted on the frame, the frame is provided with a driving mechanism, the driving mechanism is connected to the pressure roller and drives the pressure roller to move up and down.

[0006] According to the above embodiments of the utility model, at least the following beneficial effects are achieved:

[0007] The reversible rolling system provided by the embodiment of the utility model connects the strip head to be rolled with the guide belt through the guide belt docking device, and uses the guide belt to replace the strip cutting section between the coiler and the rolling mill, and the guide belt can be reused, which effectively avoids the cutting of the steel coil core and improves the yield rate of the rolling mill; by setting a tension device, the strip is wound on the support roller and the pressure roller, and the pressure roller moves up and down to change the tension of the strip, and the tension control range is large, while reducing the extrusion deformation of the strip and ensuring the winding quality.

[0008] According to some embodiments of the utility model, the first clamping mechanism includes a first support frame, a first connecting frame, a first hydraulic cylinder and a first pressure plate, the first support frame is connected to the workbench, one end of the first connecting frame is fixedly connected to the first support frame, and the other end of the first connecting bracket is installed with the first hydraulic cylinder, and the piston rod of the first hydraulic cylinder is downward and fixedly connected to the first pressure plate.

[0009] According to some embodiments of the utility model, the second clamping mechanism includes a second support frame, a second connecting frame, a second hydraulic cylinder and a second pressure plate, the second support frame is connected to the workbench, one end of the second connecting frame is fixedly connected to the second support frame, and the other end of the second connecting bracket is installed with the second hydraulic cylinder, and the piston rod of the second hydraulic cylinder is downward and fixedly connected to the second pressure plate.

[0010] According to some embodiments of the present invention, it also includes a ground roller arranged below the uncoiler, and the strip steel is coiled by the uncoiler after being transmitted by the ground roller.

[0011] According to some embodiments of the utility model, connecting seats are provided at both ends of the pressure roller, sliding grooves are provided on opposite sides of the frame, the connecting seats are slidably matched with the sliding grooves, and the driving mechanism is connected to the connecting seats and drives the connecting seats to move up and down.

[0012] According to some embodiments of the utility model, the driving mechanism includes a third hydraulic cylinder, the third hydraulic cylinder is installed on the frame, and the piston rod of the third hydraulic cylinder is downward and fixedly connected to the connecting seat.

[0013] According to some embodiments of the utility model, three support rollers are provided, two pressure rollers are provided, and four drive mechanisms are provided. The four drive mechanisms are symmetrically distributed in pairs above the four slide grooves.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0016] Figure 1 is a schematic structural diagram of a reversible rolling system according to some embodiments of the present utility model;

[0017] Figure 2 is a schematic structural diagram of a tape splicing device according to some embodiments of the present utility model;

[0018] Figure 3 is a schematic structural diagram of a first pressing mechanism according to some embodiments of the present utility model;

[0019] Figure 4 is a schematic structural diagram of a tension device according to some embodiments of the present utility model;

[0020] Figure 5 is a top view of a tension device according to some embodiments of the present utility model.

[0021] Wherein, reference numerals:

[0022] Tape splicing device 100; tape 101; strip steel 102; workbench 110; first pressing mechanism 120; first support frame 121; first connecting bracket 122; first hydraulic cylinder 123; first pressing plate 124; welding machine 130; second pressing mechanism 140; second support frame 141; second connecting bracket 142; second hydraulic cylinder 143; second pressing plate 144;

[0023] Uncoiler 200; ground roll 210;

[0024] Rolling mill 300;

[0025] Tension device 400; frame 410; chute 411; support roll 420; pressure roll 430; connecting seat 431; drive mechanism 440; third hydraulic cylinder 441;

[0026] Coiler 500. Detailed implementation manners

[0027] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described by referring to the drawings below are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0028] In the description of the present utility model, it should be understood that with regard to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0029] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more. Understandings such as "greater than", "less than", "exceeding", etc. do not include the original number, and understandings such as "above", "below", "within", etc. include the original number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0030] In the description of the present utility model, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0031] Refer to Figures 1 to 5 , a reversible rolling system proposed according to the present utility model includes a tape leading 101 docking device 100, an uncoiler 200, a rolling mill 300, a tension device 400, and a coiler 500 arranged in sequence. The tape leading 101 docking device 100 is used to weld the tape leading 101 to the strip steel 102. The tape leading 101 docking device 100 includes a workbench 110, a first pressing mechanism 120, a welding machine 130, and a second pressing mechanism 140. The first pressing mechanism 120, the welding machine 130, and the second pressing mechanism 140 are arranged in sequence on the upper end surface of the workbench 110. The first pressing mechanism 120 is used to press the tape leading 101, and the second pressing mechanism 140 is used to press the strip steel 102. The tension device 400 includes a frame 410, a supporting roller 420, and a pressing roller 430. The supporting roller 420 and the pressing roller 430 are arranged in parallel at intervals. There are at least two supporting rollers 420, and the supporting rollers 420 are fixedly installed on the frame 410. The frame 410 is provided with a driving mechanism 440, and the driving mechanism 440 is connected to the pressing roller 430 and drives the pressing roller 430 to move up and down.

[0032] Specifically, the reversible rolling system provided by the embodiment of the utility model connects the head of the strip 102 to be rolled with the lead belt 101 through the lead belt 101 docking device 100, and uses the lead belt 101 to replace the scrap cutting section of the strip 102 between the coiler 500 and the rolling mill 300, and the lead belt 101 can be reused, which effectively avoids the scrap cutting of the steel coil core and improves the yield rate of the rolling mill 300; by setting the tension device 400, the strip 102 is wound around the support roller 420 and the pressure roller 430, and the pressure roller 430 moves up and down to change the tension of the strip 102, and the tension control range is large, while reducing the extrusion deformation of the strip 102, ensuring the winding quality.

[0033] It can be understood that the utility model improves the yield rate of the rolling mill 300 by reducing the waste cutting section of the coil core. Figure 1 The utility model is provided with a lead belt 101 docking device 100 at the inlet end of the rolling mill 300. Before the unwinder 200 unwinds the steel coil, the lead belt 101 is docked with the lead belt 101 through the lead belt 101 docking device 100. The length of the lead belt 101 is consistent with the length of the waste cutting section between the rolling mill 300 and the coiler 500. The lead belt 101 is used as the waste cutting section of the strip steel 102. After the rolling of the strip steel 102 is completed, the lead belt 101 is cut off. The lead belt 101 can be reused after straightening. The lead belt 101 can use waste strip steel 102 to save costs. The utility model uses the reusable lead belt 101 to serve as the core waste cutting section in the rolling work of the strip steel 102, effectively avoiding the amount of core waste cutting in the rolling of the strip steel 102, thereby improving the yield rate of the rolling mill 300.

[0034] Specifically, refer to Figure 2 and Figure 3 According to some embodiments of the utility model, the first clamping mechanism 120 includes a first support frame 121, a first connecting frame 122, a first hydraulic cylinder 123 and a first pressing plate 124. The first support frame 121 is connected to the workbench 110, one end of the first connecting frame 122 is fixedly connected to the first support frame 121, and the other end of the first connecting frame 122 is installed with the first hydraulic cylinder 123. The piston rod of the first hydraulic cylinder 123 is downward and fixedly connected to the first pressing plate 124, so that the first pressing plate 124 is driven downward by the first hydraulic cylinder 123 to press the guide belt 101 to prevent the guide belt 101 from moving when docking with the strip steel 102.

[0035] Specifically, refer to Figure 2According to some embodiments of the utility model, the second clamping mechanism 140 includes a second support frame 141, a second connecting frame 142, a second hydraulic cylinder 143 and a second pressing plate 144. The second support frame 141 is connected to the workbench 110, one end of the second connecting frame 142 is fixedly connected to the second support frame 141, and the other end of the second connecting frame 142 is installed with the second hydraulic cylinder 143. The piston rod of the second hydraulic cylinder 143 is downward and fixedly connected to the second pressing plate 144, so that the second pressing plate 144 is driven downward by the second hydraulic cylinder 143 to press the strip steel 102 to prevent the strip steel 102 from moving when docking with the guide belt 101.

[0036] Preferably, refer to Figure 1 According to some embodiments of the utility model, the reversible rolling system also includes a ground roller 210 arranged below the uncoiler 200. The strip steel 102 is coiled by the uncoiler 200 after being transmitted by the ground roller 210. A distance greater than the thickness of the strip steel 102 needs to be reserved between the ground roller 210 and the uncoiler 200. The strip steel 102 is transported to the uncoiler 200 through the ground roller 210, so that the uncoiler 200 can coil the strip steel 102.

[0037] Further, see Figure 4 and Figure 5 According to some embodiments of the present invention, connecting seats 431 are provided at both ends of the pressure roller 430, and slide grooves 411 are provided on the opposite sides of the frame 410. The connecting seats 431 slide with the slide grooves 411 to play a guiding role. The driving mechanism 440 is connected to the connecting seat 431 and drives the connecting seat 431 to move up and down, thereby driving the pressure roller 430 to move up and down to change the tension of the strip steel 102.

[0038] Further, see Figure 4 According to some embodiments of the present invention, the driving mechanism 440 includes a third hydraulic cylinder 441 , which is mounted on the frame 410 , and a piston rod of the third hydraulic cylinder 441 is downward and fixedly connected to the connecting seat 431 .

[0039] Preferably, refer to Figure 4 and Figure 5 According to some embodiments of the present invention, three support rollers 420 are provided, two pressure rollers 430 are provided, and four driving mechanisms 440 are provided. The four driving mechanisms 440 are symmetrically distributed above the four slide grooves 411 in pairs.

[0040] In the embodiment of the utility model, the connecting member may be a clip or a plate of other shapes, and the connection method may be a snap connection, a screw connection or a welding method, which will not be described in detail here.

[0041] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A reversible rolling system, characterized in that: include: A lead tape docking device, an uncoiler, a rolling mill, a tension device and a coiler are arranged in sequence, the lead tape docking device is used to weld the lead tape to the strip steel, the lead tape docking device comprises a workbench, a first clamping mechanism, a welder and a second clamping mechanism, the first clamping mechanism, the welder and the second clamping mechanism are arranged in sequence on the upper end surface of the workbench, the first clamping mechanism is used to clamp the lead tape, the second clamping mechanism is used to clamp the strip steel, the tension device comprises a frame, a support roller and a pressure roller, the support roller and the pressure roller are arranged in parallel and spaced apart, at least two support rollers are provided, the support roller is fixedly installed on the frame, the frame is provided with a driving mechanism, the driving mechanism is connected to the pressure roller and drives the pressure roller to move up and down.

2. The reversible rolling system according to claim 1, characterized in that: The first clamping mechanism includes a first support frame, a first connecting frame, a first hydraulic cylinder and a first pressing plate. The first support frame is connected to the workbench, one end of the first connecting frame is fixedly connected to the first support frame, and the other end of the first connecting frame is installed with the first hydraulic cylinder. The piston rod of the first hydraulic cylinder is downward and fixedly connected to the first pressing plate.

3. The reversible rolling system according to claim 1, characterized in that: The second clamping mechanism includes a second support frame, a second connecting frame, a second hydraulic cylinder and a second pressing plate. The second support frame is connected to the workbench, one end of the second connecting frame is fixedly connected to the second support frame, and the other end of the second connecting frame is installed with the second hydraulic cylinder. The piston rod of the second hydraulic cylinder is downward and fixedly connected to the second pressing plate.

4. The reversible rolling system according to claim 1, characterized in that: It also includes a ground roller arranged below the uncoiler, and the strip steel is coiled by the uncoiler after being transmitted by the ground roller.

5. The reversible rolling system according to claim 1, characterized in that: Both ends of the pressure roller are provided with connecting seats, and the opposite sides of the frame are provided with sliding grooves. The connecting seats are slidably matched with the sliding grooves, and the driving mechanism is connected to the connecting seats and drives the connecting seats to move up and down.

6. The reversible rolling system according to claim 5, characterized in that: The driving mechanism comprises a third hydraulic cylinder, which is mounted on the frame, and a piston rod of the third hydraulic cylinder is downward and fixedly connected to the connecting seat.

7. The reversible rolling system according to claim 6, characterized in that: The number of the supporting rollers is three, the number of the pressing rollers is two, and the number of the driving mechanisms is four. The four driving mechanisms are symmetrically distributed in pairs above the four slide grooves.