Hot coil box coiling mechanism

Abstract

The present invention relates to a coiling mechanism for a hot coil box, belonging to the technical field of uncoiling metal strip produced by non-rolling methods. The coiling mechanism comprises a forming roller and a forming plate disposed on a metal arch. One end of the forming roller's swing arm is fixedly hinged with the metal arch, while the other end of the forming roller's swing arm is fixed to the metal arch. The forming plate is separate from the forming roller and positioned independently in front of the forming roller. A connecting rod is hinged on the metal arch and is provided with a waist-shaped hole and a driving cylinder. One end of the connecting rod is fixed to one end of the forming plate, and the other end of the forming plate is provided with a pin located in the waist-shaped hole. The driving rod of the driving cylinder is connected to the pin. The metal arch is also provided with a free roller located below the forming roller. This coiling mechanism not only withstands impact during strip coiling but also ensures smooth passage of the strip when it is empty and facilitates installation and replacement.

Description

Technical Field

[0001] The invention relates to a coiling mechanism of a hot coil box, belonging to the technical field of uncoiling of metal strips produced in a non-rolling manner. Background Art

[0002] The main function of the hot coil box is to coil the rough-rolled intermediate billet without a core shaft to form a coil, and then to uncoil the intermediate billet to transform the tail into the head and the lower surface into the upper surface, and then send it to the finishing rolling unit for rolling.

[0003] At present, all hot coil boxes in hot rolling production lines are Hertz series. Some of the structures of the hot coil boxes in this series are as follows: Figure 1 As shown, the forming roller 5.4 and forming plate 6 of the coiling mechanism are integrated. The swing arms 5 on either side of the forming roller 5.4 are hinged to the archway 1 for rotation. A hydraulic cylinder is installed on the archway 1 to drive the entire forming roller 5.4 and its forming plate 6 to swing and move the forming roller 5.4 up and down. However, in actual production, the mounting and connection structure of this coiling mechanism is not impact-resistant and easily loosens during strip coiling. In particular, the entrance and exit transition plates, crossbeams, and forming plate 6 are prone to loosening and wear, making replacement very inconvenient. Repairs require approximately one-third of the total maintenance workload on the rolling line. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: by redesigning and manufacturing the coiling mechanism of the hot coil box, it can not only withstand impact when the strip is coiled, but also ensure the smooth passage of the strip when it is empty and facilitate installation and replacement.

[0005] The technical solution proposed by the present invention to solve the above-mentioned technical problems is: a rolling mechanism of a hot coil box, comprising a forming roller and a forming plate arranged on an arch, one end of the swing arm of the forming roller is fixedly hinged with the arch, the other end of the swing arm of the forming roller is fixed on the arch, the forming plate is separated from the forming roller and is located separately in front of the forming roller, a connecting rod is hinged on the arch and is provided with a waist-shaped hole and a driving cylinder, one end of the connecting rod is fixed to one end of the forming plate, the other end of the forming plate is provided with a pin shaft, the pin shaft is located in the waist-shaped hole, the driving rod of the driving cylinder is connected to the pin shaft, and the arch is also provided with a free roller located below the forming roller.

[0006] The beneficial effects of the present invention are:

[0007] 1) Since both ends of the swing arm of the forming roller are fixed by the arch, it can effectively cope with the impact force on the forming roller when the strip passes through the forming roller and is rolled up, without the existing forming roller becoming loose;

[0008] 2) Since the forming plate is separated from the forming roller and located separately in front of the forming roller, the forming plate can be rotated by the drive cylinder to form two motion states, namely: when the strip is coiled, the drive rod of the driving cylinder drives the pin shaft and the other end of the forming plate to move downward in the waist-shaped hole, and one end of the forming plate moves upward. At this time, the forming plate rotates clockwise around the connecting rod and is in an oblique state with one end up and the other end down. This oblique state makes one side of the arc surface of the forming plate fit with the outer ring of the strip coil; when the strip is empty, the drive rod of the driving cylinder drives the pin shaft and the other end of the forming plate to move upward in the waist-shaped hole, and one end of the forming plate moves downward. At this time, the forming plate rotates counterclockwise around the connecting rod and is in a horizontal state, so that the strip can pass through the bottom of the forming plate;

[0009] 3) Since free rollers are set below the forming rollers, when the strip passes empty, the free rollers can support the strip to ensure that the strip passes smoothly.

[0010] Furthermore, it also includes a transition plate assembly installed on the swing arm of the forming roller.

[0011] Since the transition plate assembly is installed on the swing arm of the forming roller instead of on the archway, it can be easily repaired and replaced.

[0012] Furthermore, the swing arm of the forming roller is divided into an operating side swing arm and a transmission side swing arm, and the operating side swing arm and the transmission side swing arm are both provided with a first long key square hole and a first bolt hole. The end of the forming roller is provided with a bearing seat, and the bearing seat is provided with a second bolt hole opposite to the first bolt hole. The forming roller is installed on the operating side swing arm and the transmission side swing arm by passing bolts through the first bolt hole and the second bolt hole.

[0013] Furthermore, a first circular key hole is provided at the other end of the operating side swing arm and the transmission side swing arm, and a second circular key hole opposite to the first circular key hole is provided on the archway. The other ends of the operating side swing arm and the transmission side swing arm are fixed on the archway by inserting a through key into the first circular key hole and the second circular key hole.

[0014] Furthermore, the transition plate assembly is mainly composed of an inlet transition plate and a crossbeam, and mounting plates are fixedly installed at both ends of the transition plate assembly. A third bolt hole is provided on the operating side swing arm and the transmission side swing arm, and the transition plate assembly is fixed to the operating side swing arm and the transmission side swing arm by passing bolts through the mounting plate bolt holes and the third bolt holes.

[0015] Furthermore, a long key process square hole is provided on the archway, and a mounting plate bolt hole and a second long key square hole are provided on the mounting plate. The long key is passed through the long key process square hole and installed in the first long key square hole and the second long key square hole to tightly connect the operating side swing arm, the transmission side swing arm and the transition plate assembly; the diameter of the long key process square hole is larger than the diameters of the first long key square hole and the second long key square hole and the outer diameter of the long key.

[0016] The long key can strengthen the connection and fixing strength between the transition plate assembly and the operating side swing arm and the transmission side swing arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of part of the coiling mechanism of the existing hot coil box.

[0018] Figure 2 It is a structural schematic diagram of a hot coil box in which a coil forming mechanism of the hot coil box is located according to an embodiment of the present invention.

[0019] Figure 3 yes Figure 2 Middle AA section view.

[0020] Figure 4 yes Figure 2 Middle BB section view.

[0021] Figure 5 yes Figure 3 After simplification, the remaining structure diagram of the rolling mechanism is shown.

[0022] Figure 6 It is from Figure 5 Schematic diagram of the structure of the forming roller and its swing arm decomposed in the figure.

[0023] Figure 7 It is from Figure 5 Schematic diagram of the structure of the archway decomposed from the figure.

[0024] Figure 8 yes Figure 5 A local enlarged view of point I in the middle.

[0025] Figure 9 It is from Figure 5 Schematic diagram of the structure of the transition plate assembly exploded.

[0026] Figure 10 yes Figure 9 Top view of .

[0027] The coiling mechanism of the hot coil box of the present invention will be further described below with reference to the accompanying drawings. DETAILED DESCRIPTION Example

[0028] A coiling mechanism of a hot coil box in this embodiment is located in the overall structure of the hot coil box. The overall structure of the hot coil box is as follows: Figure 2 As shown, it includes an archway 1, a deflection roller mechanism 2, a bending roller mechanism 3, a workstation roll supporting mechanism 4 and a roll forming mechanism.

[0029] like Figure 2 、 3 As shown, the rolling mechanism includes a forming roller 5.4 and a forming plate 6 arranged on the arch 1, and the swing arm of the forming roller 5.4 includes an operating side swing arm 5.1 and a transmission side swing arm 5.2 on both sides of the forming roller 5.4. Figure 4 、 5 As shown, the operating side swing arm 5.1 and the transmission side swing arm 5.2 are both provided with a first long key square hole 5.3 and a first bolt hole 5.5; Figure 4 As shown, a bearing seat is provided at the end of the forming roller 5.4, and a second bolt hole is provided on the bearing seat opposite to the first bolt hole 5.5. Bolts are inserted into the first bolt hole 5.5 and the second bolt hole to install the forming roller 5.4 on the operating side swing arm 5.1 and the transmission side swing arm 5.2.

[0030] like Figure 5 As shown, one end of the swing arms 5.1 and 5.2 on both sides is fixedly hinged (not rotating) with the arch 1 through the hinge point 5.7. Figure 6 As shown, a first round key hole 5.9 is provided at the other end of the operating side swing arm 5.1 and the transmission side swing arm 5.2. Figure 7 As shown, a second round key hole 5.10 is provided on the archway 1 opposite to the first round key hole 5.9; a long key process square hole 5.11 is also provided on the archway 1. Figure 3 、 5 As shown, the other ends of the swing arms 5.1 and 5.2 can be fixed to the archway 1 by inserting the through key 5.12 into the first round key hole 5.9 and the second round key hole 5.10.

[0031] like Figure 2 、 3 As shown in Figure 5, the forming plate 6 is separated from the forming roller 5.4 and is located alone in front of the forming roller 5.4.

[0032] like Figure 4 and 8 As shown, a connecting rod 6.1 is hinged on the arch 1 and is provided with a waist-shaped hole 6.2 and a driving cylinder 6.3. One end of the connecting rod 6.1 is fixed to one end of the forming plate 6, and the other end of the forming plate 6 is provided with a pin 6.4. The pin 6.4 is located in the waist-shaped hole 6.2, and the driving rod of the driving cylinder 6.3 is connected to the pin 6.4.

[0033] like Figure 2 and 5 As shown, the archway 1 is also provided with a free roller 8 located below the forming roller 5.4, as shown in FIG. Figure 5 and 7 As shown, the free roller 8 is installed on the arch 1 through the bearing seat 8.1.

[0034] like Figure 5 As shown, the rolling mechanism of the embodiment of the present invention further includes a transition plate assembly, which is mounted on the swing arms 5.1 and 5.2 on both sides of the forming roller 5.4. Figure 9 and 10 As shown, the transition plate assembly 7 is mainly composed of an inlet transition plate 7.1 and a crossbeam 7.2. Mounting plates 9 are fixedly mounted (connected by keys) at both ends of the transition plate assembly 7. The mounting plates 9 are provided with mounting plate bolt holes 9.1 and second long key square holes 9.2. Figure 6 As shown, the third bolt hole 5.8 is provided on the swing arms 5.1 and 5.2. By passing the bolts through the mounting plate bolt holes 9.1 and the third bolt holes 5.8, the transition plate assembly 7 can be fixed to the swing arms 5.1 and 5.2; Figure 5 、 6 As shown, by passing the long key 5.13 through the long key process square hole 5.11 and then installing it in the first long key square hole 5.3 and the second long key square hole 9.2, the operating side swing arm 5.1, the transmission side swing arm 5.2 and the transition plate assembly 7 can be tightly connected. The diameter of the long key process square hole 5.11 should be larger than the diameters of the first long key square hole 5.3 and the second long key square hole 9.2, as well as the outer diameter of the long key 5.13. Figure 1 As shown, the transition plate assembly 7 was originally mounted on the archway 1, and bolt holes 1.1 on the archway 1 can be seen. Therefore, the original mounting structure is generally difficult to disassemble and replace. However, the present invention installs the transition plate assembly 7 on the swing arms 5.1 and 5.2 on both sides of the forming roller 5.4, removes the bolt holes 1.1 on the archway 1, and replaces them with third bolt holes 5.8 on the swing arms 5.1 and 5.2. At the same time, a long key 5.13 is inserted into the first long key square hole 5.3 and the second long key square hole 9.2, which can strengthen and reinforce the connection between the transition plate assembly 7 and the swing arms 5.1 and 5.2. This not only improves the connection strength but also facilitates disassembly and assembly. Therefore, this mounting structure of the present invention can facilitate the disassembly and replacement of the transition plate assembly 7.

[0035] The above description is only a preferred embodiment of the present invention, but the present invention is not limited thereto. All equivalent replacements or equivalent changes of the concepts and technical solutions according to the present invention should be included in the protection scope of the present invention.

Claims

1. The coiling mechanism of the hot coil box includes forming rollers and forming plates arranged on the archway, characterized by: One end of the swing arm of the forming roller is fixedly hinged with the archway, and the other end of the swing arm of the forming roller is fixed on the archway. The forming plate is separated from the forming roller and is located alone in front of the forming roller. A connecting rod is hinged on the archway and is provided with a waist-shaped hole and a driving cylinder. One end of the connecting rod is fixed to one end of the forming plate, and the other end of the forming plate is provided with a pin shaft, and the pin shaft is located in the waist-shaped hole. The driving rod of the driving cylinder is connected to the pin shaft. The archway is also provided with a free roller located below the forming roller.

2. The coiling mechanism of the hot coil box according to claim 1, characterized in that: Also included is a transition plate assembly mounted on the swing arm of the forming roller.

3. The coiling mechanism of the hot coil box according to claim 2, characterized in that: The swing arm of the forming roller is divided into an operating side swing arm and a transmission side swing arm. Both the operating side swing arm and the transmission side swing arm are provided with a first long key square hole and a first bolt hole. A bearing seat is provided at the end of the forming roller. The bearing seat is provided with a second bolt hole opposite to the first bolt hole. The forming roller is installed on the operating side swing arm and the transmission side swing arm by passing bolts through the first bolt hole and the second bolt hole.

4. The coiling mechanism of the hot coil box according to claim 3, characterized in that: A first circular key hole is provided at the other end of the operating side swing arm and the transmission side swing arm, and a second circular key hole opposite to the first circular key hole is provided on the archway. The other ends of the operating side swing arm and the transmission side swing arm are fixed on the archway by inserting a through key into the first circular key hole and the second circular key hole.

5. The coiling mechanism of the hot coil box according to claim 3, characterized in that: The transition plate assembly is mainly composed of an inlet transition plate and a crossbeam. Mounting plates are fixedly installed at both ends of the transition plate assembly. A third bolt hole is provided on the operating side swing arm and the transmission side swing arm. A mounting plate bolt hole is provided on the mounting plate. The transition plate assembly is fixed to the operating side swing arm and the transmission side swing arm by passing bolts through the mounting plate bolt holes and the third bolt holes.

6. The coiling mechanism of the hot coil box according to claim 5, characterized in that: A long key process square hole is also provided on the archway, and a mounting plate bolt hole and a second long key square hole are provided on the mounting plate. The long key is passed through the long key process square hole and installed in the first long key square hole and the second long key square hole to tightly connect the operating side swing arm, the transmission side swing arm and the transition plate assembly; the diameter of the long key process square hole is larger than the diameters of the first long key square hole and the second long key square hole and the outer diameter of the long key.

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