Logistics path arrangement method for two hot continuous rolling production lines

Abstract

The invention relates to the technical field of production line transportation. The invention discloses a logistics path arrangement method for two hot continuous rolling production lines, which comprises the following steps: a hot continuous rolling production line A outputs a steel coil, the steel coil enters a hot continuous rolling production line B after being loaded by an empty tray, and then enters a next process production line b or / and a next process production line d; the empty trays existing at the next procedure production line b or / and the next procedure production line d flow back, and the empty trays enter the hot continuous rolling production line A and then enter the hot continuous rolling production line B; the hot continuous rolling production line B outputs a steel coil, and the steel coil enters the hot continuous rolling production line A after being loaded by an empty tray and then enters the next process production line a or / and the next process production line c; and the empty trays existing at the next procedure production line a or / and the next procedure production line c flow back, enter the hot continuous rolling production line B and then enter the hot continuous rolling production line A. According to the method, hundred percent of transportation chain lightering of the steel coils produced by the two hot continuous rolling production lines can be realized, and the use cost of a steel coil transportation vehicle is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of production line transportation, and in particular to a method for arranging logistics paths for two hot rolling production lines. Background Art

[0002] At present, the transportation chain area after the conventional hot rolling is a single-line single-transportation system. In order to further improve the rolling rhythm and transportation efficiency of the hot rolling production line, the applicant has studied and developed a double hot rolling line shared transportation chain system. However, as the rolling rhythm of the double production lines gradually increases, the output transportation of steel coils and the return supply of pallets for loading steel coils are particularly important. After the steel coils of the two hot rolling production lines are transported out, the following demand conditions will arise: 1. The steel coils produced in area B of production line must flow out through area A of production line; 2. Empty pallets must flow back from production line A area to production line B area; 3. The steel coils produced in area A of production line must flow out through area B of production line; 4. Empty pallets must flow back from production line B area to production line A area; According to the above-mentioned actual on-site demand situation, if the single production line transportation mode is followed, the rolling rhythm of the hot rolling production line will be seriously restricted, and the produced steel coils cannot be continuously shipped out of the warehouse. At the same time, the return path of the empty pallets will also seriously restrict the steel coil production capacity output of the two production lines. Summary of the invention

[0003] The object of the present invention is to provide a logistics path layout method for two hot rolling production lines, which can enable the output steel coils of the two hot rolling production lines to be 100% transported by the transport chain, reduce the stagnation of steel coil output, and achieve the purpose of not using or using less steel coil transport vehicles for transport.

[0004] In order to achieve the above object, the present invention adopts the following technical solution: A method for arranging logistics paths for two hot rolling production lines, the method being applied to a shared transport chain system for two hot rolling production lines, the shared transport chain system for two hot rolling production lines comprising a hot rolling production line A, a hot rolling production line B, a next process production line a, a next process production line b, a next process production line c, and a next process production line d, the hot rolling production line A is connected to the hot rolling production line B, and the next process production line a, the next process production line b, the next process production line c, and the next process production line d are respectively connected to the hot rolling production line A and the hot rolling production line B; the method comprising the following steps: Step 1: The hot rolling production line A produces steel coils, which are loaded on empty pallets and then enter the hot rolling production line B, and then enter the next process production line b and / or the next process production line d; Step 2: The empty pallets stored at the next process production line b and / or the next process production line d are refluxed, and the empty pallets enter the hot rolling production line A, and then enter the hot rolling production line B; Step 3: The hot rolling production line B produces steel coils, which are loaded on empty pallets and then enter the hot rolling production line A, and then enter the next process production line a or / and the next process production line c; Step 4: The empty pallets stored at the next process production line a and / or the next process production line c are refluxed, and the empty pallets enter the hot rolling production line B, and then enter the hot rolling production line A.

[0005] Beneficial effects of the present invention: 1. This method can effectively combine the docking layout of two hot rolling production lines and four cold rolling process downstream production lines and the automatic control of multi-directional and multi-mode transfer of the transport chain, so that the output steel coils of the two hot rolling production lines can be 100% transported by the transport chain. While the two hot rolling production lines form a stable transport chain network, they can also supply steel coils to the four downstream production lines for the cold rolling process.

[0006] 2. Compared with the conventional production mode of single production line and single transport system, this method not only improves the chain transfer rate of the transport chain system shared by the double hot rolling lines, achieves the purpose of not using or using less steel coil transport vehicles, and reduces the use cost of steel coil transport vehicles, but also makes the double hot rolling line shared transport chain system more compact, saving plant area and investment cost of system equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the shared transport chain system for double hot rolling lines.

[0008] In the figure: 1. Hot rolling production line A; 2. Hot rolling production line B; 3. Next process production line a; 4. Next process production line b; 5. Next process production line c; 6. Next process production line d. DETAILED DESCRIPTION

[0009] The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0010] Please refer to Figure 1 A method for arranging logistics paths for two hot rolling production lines, wherein the method is applied to a shared transport chain system for two hot rolling production lines, wherein the shared transport chain system for two hot rolling production lines comprises a hot rolling production line A1, a hot rolling production line B2, a next process production line a3, a next process production line b4, a next process production line c5, and a next process production line d6, wherein the hot rolling production line A1 is connected to the hot rolling production line B2, and the next process production line a3, the next process production line b4, the next process production line c5, and the next process production line d6 are connected to the hot rolling production line A1 and the hot rolling production line B2 respectively; the method comprises the following steps: Step 1: The hot rolling production line A1 produces steel coils, which are loaded on empty pallets and then enter the hot rolling production line B2, and then enter the next process production line b4 and / or the next process production line d6; Step 2: The empty pallets stored at the next process production line b4 and / or the next process production line d6 are refluxed, and the empty pallets enter the hot rolling production line A1, and then enter the hot rolling production line B2; Step 3: The hot rolling production line B2 produces steel coils, which are loaded on empty pallets and then enter the hot rolling production line A1, and then enter the next process production line a3 and / or the next process production line c5; Step 4: The empty pallets stored in the next process production line a4 and / or the next process production line c5 are refluxed, and the empty pallets enter the hot rolling production line B2, and then enter the hot rolling production line A1.

[0011] It should be noted that this method enables two hot rolling production lines and four cold rolling process downstream production lines to share pallets during the production process. The empty pallets at the four downstream production lines can flow back to the two hot rolling production lines stably and without obstacles throughout the process, effectively coordinating the barge transportation of steel coils and improving the output capacity of steel coils.

[0012] It should be noted that this method can effectively combine the docking layout of two hot rolling production lines, four cold rolling process downstream production lines and the automatic control of multi-directional and multi-mode transfer of the transport chain, which can not only enable the output steel coils of the two hot rolling production lines to achieve 100% transport chain transshipment, but also provide a stable supply of steel coils to the four cold rolling process downstream production lines, realize multi-condition, multi-variety, and multi-mode steel coil supply and output modes, and achieve the purpose of diversified direct delivery of steel coils.

[0013] It should be noted that compared with the conventional production method of a single production line and a single transport system, this method not only improves the chain transfer rate of the transport chain system shared by the double hot rolling lines, reduces the use cost of the steel coil transport vehicles, and achieves the purpose of not using or using less steel coil transport vehicles, but also makes the double hot rolling lines The shared transport chain system is more compact, saving plant space and investment costs of system equipment.

Claims

1. A method for arranging logistics paths for two hot rolling production lines, characterized in that: The method is applied to a shared transport chain system of two hot rolling lines, which includes a hot rolling line A, a hot rolling line B, a next process line a, a next process line b, a next process line c, and a next process line d. The hot rolling line A is connected to the hot rolling line B, and the next process line a, the next process line b, the next process line c, and the next process line d are connected to the hot rolling line A and the hot rolling line B respectively. The method includes the following steps: Step 1: The hot rolling production line A produces steel coils, which are loaded on empty pallets and then enter the hot rolling production line B, and then enter the next process production line b and / or the next process production line d; Step 2: The empty pallets stored at the next process production line b and / or the next process production line d are refluxed, and the empty pallets enter the hot rolling production line A, and then enter the hot rolling production line B; Step 3: The hot rolling production line B produces steel coils, which are loaded on empty pallets and then enter the hot rolling production line A, and then enter the next process production line a or / and the next process production line c; Step 4: The empty pallets stored at the next process production line a and / or the next process production line c are refluxed, and the empty pallets enter the hot rolling production line B, and then enter the hot rolling production line A.

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