Coil falling prevention device of rolling mill

Abstract

The utility model discloses a roll falling prevention device of a rolling mill. The roll falling prevention device comprises a trolley support arm, a cushion block and a detection sensor, the cushion block is fixed to the top of the trolley supporting arm, a first step face and a second step face are formed on the top of the cushion block, the second step face is located on the inner side of the trolley supporting arm, and the height of the second step face is smaller than that of the first step face. The detection sensor is fixed to the outer side of the trolley supporting arm, the detection sensor is used for detecting whether a sleeve exists over the detection sensor or not, and the detection sensor is electrically connected with the control system and conducts signal transmission. When the sleeve is laterally pulled, an alarm can be given to remind an operator to stop the movement of the conical head in time, so that the rolling mill is effectively prevented from laterally pulling and dropping during loading or unloading, the fault shutdown time of the rolling mill is shortened, the waste scrabbling loss of a material coil and the loss of spare parts are reduced, and the operation safety and economical efficiency of the rolling mill are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum foil rolling mills, in particular to a rolling mill anti-coil-off device. Background Art

[0002] The unloading system of the aluminum foil rolling mill consists of a unloading trolley, a coiler, a storage seat and other components. Among them, the coiler includes an operating side and a driving side. Cone heads are provided on the machine bases of the operating side and the driving side, and the cone heads are arranged opposite to each other. The sleeve is clamped between the two cone heads. The machine base is also provided with a cylinder for controlling the cone head to clamp or loosen the sleeve and a solenoid valve for controlling the opening and closing of the cylinder. When the material coil is finished rolling, the unloading trolley moves to the bottom of the material coil, and the support arms on both sides of the unloading trolley rise to support the sleeve of the material coil. Then the operator manually opens the machine bases of the operating side and the driving side synchronously outward by pressing a button. After the cone heads on both sides are completely separated from the sleeve, the unloading trolley is moved to the designated storage seat, and the support arms on both sides of the unloading trolley descend to place the material coil on the storage seat, completing the unloading process.

[0003] When the arm of the unloading trolley supports the sleeve and the coiler opens to both sides, it is easy for the coiler cone head and the sleeve to get stuck, causing one end of the sleeve to be pulled a certain distance by the cone head on one side, but the operator did not find it and stopped moving in time, causing the other end of the sleeve to slip off the trolley arm, resulting in a coil drop accident. More seriously, once a coil drop accident occurs, the recovery time is quite long, taking 4 to 6 hours, which not only affects production efficiency, but also brings potential safety hazards to operators. Utility Model Content

[0004] The purpose of the utility model is to provide a rolling mill anti-coil unloading device, which can sound an alarm when the sleeve is pulled sideways, reminding the operator to stop the movement of the cone head in time, effectively avoiding the rolling mill from pulling sideways when loading or unloading, reducing the rolling mill's downtime and the loss of scrap and spare parts of the coil, thereby improving the safety and economy of the rolling mill operation.

[0005] To achieve the above-mentioned purpose, the solution of the utility model is: a rolling mill anti-coil dropping device, including a trolley support arm, a cushion block and a detection sensor; the cushion block is fixed on the top of the trolley support arm, and the top of the cushion block forms a first step surface and a second step surface, the second step surface is located on the inner side of the trolley support arm, and the height of the second step surface is lower than the height of the first step surface; the detection sensor is fixed on the outer side of the trolley support arm, and the detection sensor is used to detect whether there is a sleeve directly above it, and the detection sensor is electrically connected to the control system and transmits signals.

[0006] Furthermore, the top of the trolley support arm is V-shaped, and a cushion block is provided on each side of the V-shaped top of each trolley support arm.

[0007] Furthermore, a lifting mechanism is provided at the bottom of the second step surface of the cushion block, and the lifting mechanism is used to lift and reset the sleeve that falls on the second step surface.

[0008] Furthermore, the lifting mechanism is a lifting screw, which extends upward from the bottom of the second step surface and passes through to the top of the second step surface. The sleeve falling on the second step surface is lifted upward by rotating the lifting screw.

[0009] Furthermore, the detection sensor is a photoelectric sensor, and a probe of the photoelectric sensor is perpendicular to the sleeve.

[0010] Furthermore, the detection sensor is fixed on the trolley support arm through a mounting bracket.

[0011] Furthermore, the cushion block is fixed on the trolley support arm by bolts.

[0012] After adopting the above scheme, the beneficial effects of the utility model are:

[0013] The utility model provides a detection sensor on the trolley support arm, which can monitor in real time whether there is a sleeve directly above it. When the sleeve is pulled sideways, it can sound an alarm to remind the operator to stop the movement of the cone head in time, thereby effectively avoiding the side pulling and coil falling accidents of the rolling mill during loading or unloading, reducing the downtime of the rolling mill and the loss of scrap and spare parts of the coil, thereby improving the safety and economy of the rolling mill operation. A gasket structure is also added to the trolley support arm to provide stable support for the sleeve. The gasket is in a stepped shape. When the sleeve falls onto the second step surface, it will make a sound, which can also serve to remind the operator. Furthermore, a lifting mechanism is provided at the bottom of the second step surface, which can lift the coil to achieve rapid resetting and shorten the recovery time of the coil falling.

[0014] The utility model effectively prevents the rolling mill from coiling accidents through the dual insurance settings of mechanical and electrical, and can restore the equipment to normal in about 30 minutes after the accident occurs, reducing the failure downtime of the rolling mill, and effectively avoiding the safety hazards of maintenance personnel when restoring the rolling mill after the coiling accident occurs, while improving the equipment availability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of the application state of the rolling mill anti-coil-off device of one embodiment of the utility model on the rolling mill;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of a rolling mill anti-coil-off device according to an embodiment of the utility model;

[0017] Figure 3 This is a side view of the application state of the rolling mill anti-coil drop device of one embodiment of the utility model on the rolling mill (the cone head is open);

[0018] Figure 4 This is a side view of the application state of the rolling mill anti-coil drop device of one embodiment of the utility model on the rolling mill (with the cone head clamped);

[0019] Figure 5 This is a side view of the application state of the rolling mill anti-coil drop device of one embodiment of the utility model on the rolling mill (cone head side pull);

[0020] Figure 6 yes Figure 5 A partial enlarged view of the middle part;

[0021] Figure 7 It is a side view of the application state of the rolling mill anti-coil-off device of one embodiment of the utility model on the rolling mill (cone head limit side pulling);

[0022] Figure 8 yes Figure 7 A partial enlarged view of point B in the middle.

[0023] Description of labels:

[0024] 1. Trolley base; 2. Trolley support arm; 3. Spacer; 31. First step surface; 32. Second step surface; 4. Photoelectric sensor; 5. Top screw; 6. Bolt; 7. Sleeve; 8. Cone head; 9. Cylinder; 10. Mounting bracket. DETAILED DESCRIPTION

[0025] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] The utility model provides a rolling mill anti-rolling device, which is used to prevent the rolling mill from pulling out the roll when loading or unloading. Figure 1 As shown, the rolling mill anti-rolling device of the utility model includes a trolley support arm 2, a cushion block 3 and a detection sensor. The trolley support arm 2 is fixed on the trolley base 1. A trolley support arm 2 is provided on each of the left and right sides of the trolley base 1, which is used to support the left and right ends of the sleeve 7 respectively to provide stable support for the sleeve 7. In order to improve the stability of the placement of the sleeve 7, the top of the trolley support arm 2 is designed to be V-shaped. The V-shaped design can not only adapt to sleeves 7 of different diameters, but also is more stable in physical structure, which can prevent the sleeve 7 from slipping or rolling at the support point. A cushion block 3 is provided on each side of the V-shaped top of each trolley support arm.

[0027] like Figure 2As shown, the pad 3 is fixed to the top of the trolley support arm 2 by bolts 6. This fixing method not only ensures the stability of the pad 3, but also greatly facilitates the assembly, disassembly and replacement work of the operator, thereby effectively improving the maintainability and use efficiency of the device. The top of the pad 3 forms a first step surface 31 and a second step surface 32. This stepped structure not only provides stable support, but also meets specific functional requirements. The second step surface 32 is located on the inner side of the support arm, that is, close to the center of the sleeve 7. The height of the second step surface 32 is lower than the height of the first step surface 31. Such a height difference provides precise space for the movement and positioning of the sleeve 7.

[0028] The detection sensor is electrically connected to the control system. The control system receives the signal sent by the detection sensor and controls the opening and closing of the oil cylinder 9 of the uncoiler, thereby controlling the movement of the cone head 8. The detection sensor used in this embodiment is a photoelectric sensor 4, which has the characteristics of high sensitivity and rapid response. In order to ensure its stable operation, the photoelectric sensor 4 is fixed to the outside of the trolley support arm 2 through a mounting bracket 10. This design not only ensures the accurate detection of the sensor, but also facilitates installation and maintenance. The probe of the photoelectric sensor 4 is perpendicular to the sleeve 7 and is used to detect whether there is a sleeve 7 directly above it. If the sleeve 7 is not detected, an alarm signal will be triggered and a rapid response will be made through the interlocking control of the control system. When this detection sensor alarms, the cone head 8 stops moving immediately to prevent the rolling mill from rolling off. After that, the control system needs to be reset before it can move again. This process ensures that the rolling mill is in a safe state before restarting, providing safety protection for the operator.

[0029] In order to enable the rolling mill to quickly return to its original state, the utility model is provided with a lifting mechanism at the bottom of the second step surface 32 of the cushion block 3, referring to Figure 1 and Figure 2 . When the sleeve 7 is pulled sideways by the cone head 8 and falls on the second step surface 32, the lifting mechanism can quickly and accurately lift the sleeve 7 upwards, so that it is reset to the normal working position, ensuring the continuous and stable operation of the rolling mill. This design not only improves the safety performance of the device, but also greatly enhances the convenience and efficiency of the operation of the rolling mill. The lifting mechanism described in this embodiment is a top screw 5, which extends upward from the bottom of the second step surface 32 and passes through the top of the second step surface 32. The sleeve 7 that falls on the second step surface 32 can be lifted and reset by rotating the top screw 5. The utility model effectively prevents the rolling mill from rolling off accidents through the dual insurance settings of mechanical structure and electricity, and can restore the equipment to normal in about 30 minutes after the accident. It effectively solves the problem of rolling off accidents in the rolling mill, reduces the downtime of the rolling mill, and effectively avoids the safety hazards of maintenance personnel when restoring the rolling mill after the rolling off accident while improving the equipment availability.

[0030] Figures 3 to 8For the specific application of the utility model installed on the rolling mill, the following is based on Figures 3 to 8 The working principle of the utility model is described in detail.

[0031] Figure 3 The middle cone head 8 is in an open state. At this time, the two ends of the sleeve 7 are stably located on the first step surface 31 of the cushion block 3 of the left and right trolley support arms 2, respectively, and are in a safe state.

[0032] Figure 4 The middle cone head 8 is in a clamped state, and when the cone head 8 is clamped, the oil cylinder 9 extends. At this time, the two ends of the sleeve 7 are stably located on the first step surface 31 of the cushion block 3 of the left and right trolley support arms 2, respectively, and are in a safe state.

[0033] Figure 5 and 6 The middle cone head 8 is in a state of side pulling, and the cone head 8 and the sleeve 7 are stuck, causing one end of the sleeve 7 to be pulled sideways by the cone head 8 on one side for a certain distance (not exceeding the limit distance). At this time, the photoelectric sensor 4 detects that there is no sleeve 7 above it and sends an emergency stop signal. The control system controls the cone head 8 to stop moving. At this time, the sleeve 7 is still on the first step surface 31 of the cushion block 3, and no winding accident occurs. The oil cylinder 9 drives the cone head 8 to re-clamp and then open it to recover.

[0034] Figure 7 and 8 This is the state where the cone head 8 is pulled to the extreme side. If the photoelectric sensor 4 fails to detect the displacement of the sleeve 7 due to a fault, the cone head 8 continues to pull the sleeve 7 to the side until the sleeve 7 falls from the first step surface 31 to the second step surface 32. At this time, a loud noise will be emitted, thereby reminding the operator of the roll-off accident. The operator can easily restore the roll through the top screw 5 on the cushion block 3. The width design of the second step surface 32 can ensure that when the side-pull distance is greater than the limit stroke of the oil cylinder 9, the roll is still on the cushion block 3 of the trolley support arm 2, thereby avoiding the roll-off accident.

[0035] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0036] Meanwhile, the directions such as front, back, left, and right involved in this embodiment are only used as a reference for directions and do not represent directions in actual use. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] The above description is only a preferred embodiment of the present utility model and is not a limitation on the design of the present case. Any equivalent changes made based on the key design of the present case shall fall within the protection scope of the present case.

Claims

1. A rolling mill anti-coil drop device, characterized in that: It includes a trolley support arm, a cushion block and a detection sensor; the cushion block is fixed on the top of the trolley support arm, the top of the cushion block forms a first step surface and a second step surface, the second step surface is located on the inner side of the trolley support arm, and the height of the second step surface is lower than the height of the first step surface; the detection sensor is fixed on the outer side of the trolley support arm, the detection sensor is used to detect whether there is a sleeve directly above it, and the detection sensor is electrically connected to the control system and transmits signals.

2. A rolling mill anti-coil drop device according to claim 1, characterized in that: The top of the trolley support arm is V-shaped, and a cushion block is respectively arranged on both sides of the V-shaped top of each trolley support arm.

3. A rolling mill anti-coil drop device as claimed in claim 1 or 2, characterized in that: A lifting mechanism is provided at the bottom of the second step surface of the cushion block, and the lifting mechanism is used to lift and reset the sleeve that falls on the second step surface.

4. A rolling mill anti-coil drop device as claimed in claim 3, characterized in that: The lifting mechanism is a lifting screw, which extends upward from the bottom of the second step surface and passes through to the top of the second step surface. The sleeve falling on the second step surface is lifted upward by rotating the lifting screw.

5. A rolling mill anti-coil drop device as claimed in claim 1, characterized in that: The detection sensor is a photoelectric sensor, and the probe of the photoelectric sensor is perpendicular to the sleeve.

6. A rolling mill anti-coil drop device as claimed in claim 1, characterized in that: The detection sensor is fixed on the trolley support arm through a mounting bracket.

7. A rolling mill anti-coil drop device as claimed in claim 1, characterized in that: The cushion block is fixed on the trolley support arm by bolts.

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