Anti-collision detection equipment for hot rolling mill

Abstract

The utility model provides anti-collision detection equipment for a hot rolling mill, the hot rolling mill comprises a motor and a conveying roller system, the motor is constructed to be capable of controlling the movement of the conveying roller system, and the anti-collision detection equipment comprises a base, a supporting frame, a movable connecting rod, a sensing device and a control device. The support frame is connected to the base. The movable connecting rod is arranged above the conveying roller system and is constructed to be movably connected to the supporting frame. The sensing device is arranged on the supporting frame, and the sensing device is configured to be capable of sensing the movement of the movable connecting rod and generating a movement signal when sensing the movement of the movable connecting rod. The control device is electrically connected with the sensing device and is configured to control the action of the motor based on the motion signal. According to the anti-collision detection equipment in the scheme, the upwarp position of the head of the strip can be accurately detected in the aluminum plate rolling process of the hot rolling mill, so that the upwarp strip can be prevented from crashing a roller way or auxiliary equipment on the roller way, the equipment failure can be reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum plate and strip processing, in particular to an anti-collision detection device for a hot rolling mill. Background Art

[0002] In the rolling production of aluminum sheet and strip composite materials, it is usually necessary to stack 1-5 layers of different aluminum alloy material plates together and enter the hot rolling mill for rolling. Because the alloys used for the upper and lower skin layers and the middle core layer aluminum plates are different, the elongation characteristics of the materials are also different. Therefore, in operation, the strip head often curls up. Since the rolling temperature of the hot rolling mill is usually 300-500 degrees, when the strip comes out of the mill roll gap, it will carry a large amount of rolling emulsion and smoke. Since the entire roller production line is 130 meters long, it is generally difficult for the operator to accurately determine the position of the upturned strip, and the upturned strip is easy to damage the auxiliary equipment and pinch roller equipment above the roller, causing the equipment to shut down for a long time. Equipment shutdown usually requires 3-8 hours of emergency repair. When the rolling temperature drops, the internal structural stress of the strip increases, work hardening will occur, and the process characteristics of the material will also be changed, causing the product to be scrapped.

[0003] Therefore, it is necessary to provide an anti-collision detection device for a hot rolling mill to at least partially solve the above problems. Utility Model Content

[0004] The utility model provides an anti-collision detection device for a hot rolling mill. The anti-collision detection device can accurately detect the upturned position of the strip head during the process of rolling aluminum plates in the hot rolling mill, and control the motor of the conveying roller system to stop running when the strip is detected to be upturned, thereby preventing the upturned strip head from damaging the auxiliary equipment and the clamping roller of the hot rolling mill.

[0005] The anti-collision detection device proposed in the utility model is used for a hot rolling mill, the hot rolling mill comprises a motor and a conveying roller system, the motor is configured to control the movement of the conveying roller system, and the anti-collision detection device comprises:

[0006] Base;

[0007] a support frame connected to the base;

[0008] A movable connecting rod, the movable connecting rod is arranged above the conveying roller system and is configured to be movably connected to the supporting frame;

[0009] a sensing device, the sensing device being disposed on the support frame and being configured to sense movement of the movable link and to generate a motion signal when the movement of the movable link is sensed; and

[0010] A control device is electrically connected to the sensing device and is configured to control the action of the motor based on the motion signal.

[0011] Preferably, the base comprises a base body and a sleeve portion axially extending from the base body, the support frame is arranged in the sleeve portion, a first bearing is arranged in the sleeve portion, and the first bearing is arranged between the support frame and the sleeve portion.

[0012] Preferably, the support frame is connected to the sleeve portion via a plurality of positioning pins.

[0013] Preferably, the support frame includes a first support and a second support connected to the first support substantially perpendicularly, and the support frame also includes a third support, wherein the third support connects the first support and the second support to form a triangular support with the first support and the second support.

[0014] Preferably, the movable link comprises a first link, and the first link is rotatably connected to the support frame.

[0015] Preferably, the anti-collision detection device further comprises a connecting shaft, the first connecting rod is rotatably connected to the supporting frame via the connecting shaft, and a second bearing is arranged between the connecting shaft and the supporting frame.

[0016] Preferably, the first connecting rod is provided with a plurality of connecting holes along its height direction, and the connecting shaft is configured to be selectively connectable to one of the plurality of connecting holes.

[0017] Preferably, the support frame comprises a connecting sleeve connected to an end portion of the first support frame, and the connecting shaft is connected to the connecting sleeve.

[0018] Preferably, the sensing device is configured as a proximity switch, and the proximity switch is mounted on the connecting sleeve.

[0019] Preferably, the first connecting rod is further provided with a protruding block extending in the direction of the sensing device, and the protruding block is arranged above the plurality of connecting holes.

[0020] Preferably, the movable link further includes a second link configured to be slidably connected to the first link below the first link.

[0021] Preferably, a slide groove extending along the height direction of the first connecting rod is arranged on the outer wall thereof, and a protrusion is arranged on the outer wall of the second connecting rod, and the protrusion is assembled in the slide groove and can slide up and down along the slide groove.

[0022] Preferably, the anti-collision detection device further comprises a warning device, wherein the warning device is electrically connected to the control device, and the control device is configured to control the warning device to issue a warning when receiving the motion signal.

[0023] Preferably, the cross section of the movable connecting rod is square.

[0024] According to the anti-collision detection device of the above scheme, the movable link is arranged above the conveying roller system. When the upturned strip head touches the movable link, the movable link moves. After detecting the movement of the movable link, the sensing device can convert the mechanical signal into an electrical signal and send it to the control device, and the control device can then control the motor of the conveying roller system to stop running. The above scheme can prevent the upturned strip from damaging the roller or the auxiliary equipment on it, thereby reducing equipment failures and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to better understand the above and other purposes, features, advantages and functions of the present invention, reference may be made to the preferred embodiments shown in the accompanying drawings. The same or similar reference numerals in the accompanying drawings refer to the same or similar components. It should be understood by those skilled in the art that the accompanying drawings are intended to schematically illustrate the preferred embodiments of the present invention and have no limiting effect on the scope of the present invention, and the components in the drawings are not drawn to scale.

[0026] Figure 1 It is a three-dimensional diagram of an anti-collision detection device for a hot rolling mill according to a preferred embodiment of the utility model, wherein the second connecting rod is omitted;

[0027] Figure 2 for Figure 1 A top view of the anti-collision detection device shown;

[0028] Figure 3 for Figure 1 A front view of the anti-collision detection device is shown, wherein a second connecting rod is arranged below the first connecting rod.

[0029] Figure 4 for Figure 3 A partial enlarged view of part I in FIG.

[0030] Figure 5 for Figure 1 A perspective view of a first connecting rod of the anti-collision detection device shown;

[0031] Figure 6 for Figure 1 A three-dimensional view of the connecting shaft and connecting sleeve of the anti-collision detection device shown; and

[0032] Figure 7 Shows Figure 1A simplified view of the anti-collision detection device shown when it is touched by a tilted strip. DETAILED DESCRIPTION

[0033] Below, the retaining mechanism according to the preferred embodiment of the utility model will be described in detail with reference to the accompanying drawings. It can be understood that what is given below is only the preferred embodiment of the utility model, and those skilled in the art can think of other ways to implement the utility model based on the preferred embodiment, and other ways also fall within the scope of the utility model.

[0034] First of all, it should be explained that the directional terms and positional terms in the present invention should be understood as relative directions and positions, rather than absolute directions and positions.

[0035] The following will refer to Figure 1-Figure 7 The anti-collision detection device 100 for a hot rolling mill according to a preferred embodiment of the present invention is described in detail.

[0036] Hot rolling mill is a process testing instrument used in the field of mechanical engineering. It is mainly used to heat and roll composite material plates. The hot rolling mill includes a conveying roller system for conveying the rolled material and a motor that can control the start, stop and conveying direction of the conveying roller system.

[0037] The anti-collision detection device 100 according to the preferred embodiment of the utility model can be used to detect the warped strip on the conveying roller system of the hot rolling mill, and can control the action of the motor when the warping of the strip is detected, for example, the motor can be stopped or run in the opposite direction, etc., so as to prevent the warped strip from damaging the auxiliary equipment above the conveying roller system or the clamping roller device behind it.

[0038] like Figure 1 and Figure 2 As shown, the anti-collision detection device 100 includes a base 110, a support frame 120 and a movable connecting rod 130. The base 110 includes a base body 111 and a sleeve portion 112. The base body 111 is generally square in structure and can be stably fixed on a horizontal surface such as a desktop or a table. The base body 111 can be made of an iron plate. The sleeve portion 112 is generally cylindrical and is connected to the base body 111 and extends axially upward from the base body 111.

[0039] In order to strengthen the connection strength between the sleeve portion 112 and the base body 111, preferably, the base 110 further includes four reinforcing ribs 114 that are substantially configured in a right-angled triangle shape, one right-angled side of the reinforcing rib 114 is connected to the sleeve portion 112, and the other right-angled side of the reinforcing rib 114 is connected to the base body 111. The four reinforcing ribs 114 are evenly spaced apart in the circumferential direction of the sleeve portion 112. It is understood that in other embodiments not shown, other numbers of reinforcing ribs 114 may also be provided, such as three, five, etc.

[0040] The support frame 120 includes a first bracket 121 and a second bracket 122 connected to the first bracket 121 substantially perpendicularly, so that the support frame 120 is substantially configured in an L shape. The second bracket 122 is connected to the sleeve portion 112 of the base 110, and the second bracket 122 is connected to the sleeve portion 112 through a plurality of locating pins 113. Preferably, a first bearing (not shown) is also provided in the sleeve portion 112, and the first bearing is provided at the connection between the second bracket 122 and the sleeve portion 112. This solution allows the support frame 120 to rotate 360° relative to the base 110 when the plurality of locating pins 113 are removed. This solution is particularly advantageous when the hot rolling mill equipment is overhauled, in which case the support frame 120 can be rotated to any direction by pulling out the locating pins 113 without hindering or affecting the overhaul or maintenance work of the hot rolling mill equipment.

[0041] Preferably, the support frame 120 further includes a third support frame 123, and the third support frame 123 connects the first support frame 121 and the second support frame 122 together to form a triangular support together with the first support frame 121 and the second support frame 122. This solution can improve the stability of the support frame 120.

[0042] The movable link 130 is disposed above the conveying roller system and is movably connected to the support frame 120. The extending direction of the movable link 130 is substantially parallel to the second bracket 122. The movable link 130 includes a first link 134 and a second link 160 connected to the first link 134 below the first link 134, and the second link 160 is slidably connected to the first link 134. Preferably, the cross-sections of the first link 134 and the second link 160 are both configured as square.

[0043] like Figure 3As shown, the first connecting rod 134 is a hollow structure, and two outer walls of the first connecting rod 134 that are arranged opposite to each other are respectively provided with a slide groove 133 extending in the height direction thereof, and two outer walls of the second connecting rod 160 that are arranged opposite to each other are provided with a protrusion 161 extending in the direction toward the slide groove 133, and the protrusion 161 can be assembled in the slide groove 133 and can slide up and down along the slide groove 133, so that the second connecting rod 160 can slide up and down relative to the first connecting rod 134. In the actual operation process, when an upwardly tilted strip material hits the second connecting rod 160 at the lower end of the first connecting rod 134, the second connecting rod 160 will move upward along the slide groove 133 on the first connecting rod 134 after receiving a force, so as to buffer the external force received by the movable connecting rod 130. After the upwardly tilted strip material is evacuated, the second connecting rod 160 will slide to the lowest initial position along the slide groove 133 on the first connecting rod 134 under the action of gravity.

[0044] In a preferred embodiment, the movable link 130 is arranged at a predetermined height above the conveying roller system, and the predetermined height is, for example, 600 mm to 800 mm, and more preferably 700 mm. In other words, the distance between the lower end of the second link 160 and the conveying roller system is preferably 700 mm, and when the height of the upwardly warped strip reaches the predetermined distance, it will hit or hit the second link 160, thereby triggering the rotation of the first link 134.

[0045] Preferably, if Figures 4 to 6 As shown, the anti-collision detection device 100 further includes a connecting shaft 150, and the first connecting rod 134 is rotatably connected to the first bracket 121 of the support frame 120 via the connecting shaft 150. The first connecting rod 134 is provided with a plurality of connecting holes 131 along its height direction, and the connecting shaft 150 can be selectively connected to any one of the plurality of connecting holes 131. This solution can facilitate the adjustment of the spacing between the first connecting rod 134 and the conveying roller system according to the equipment conditions on site, so that the distance of the predetermined height mentioned above can be adjusted, thereby increasing the flexibility of operation.

[0046] like Figure 3 , Figure 4 and Figure 6 As shown, the support frame 120 further includes a connecting sleeve 124, which is connected to the first bracket 121 at the end of the first bracket 121. One end of the connecting shaft 150 is connected to the connecting sleeve 124, and a second bearing (not shown) is provided at the connection between the connecting shaft 150 and the connecting sleeve 124, so that the connecting shaft 150 can rotate relative to the connecting sleeve 124, and the other end of the connecting shaft 150 is fixed in the connecting hole 131 of the first connecting rod 134, so that the first connecting rod 134 can rotate relative to the first bracket 121.

[0047] like Figure 4 and Figure 6 As shown, the anti-collision detection device 100 further includes a sensing device 140 and a control device (not shown), wherein the sensing device 140 is disposed at a position close to the movable link 130, preferably disposed on the connecting sleeve 124 of the support frame 120. The sensing device 140 is capable of sensing the movement of the movable link 130 and generating a motion signal when sensing the movement of the movable link 130. The control device is electrically connected to the sensing device 140 and is capable of controlling the motor to stop running when receiving the motion signal.

[0048] Preferably, the sensing device 140 is configured as a proximity switch. Figure 4 and Figure 6 As shown, a mounting portion 141 is provided above the connecting sleeve 124 , and the proximity switch can be fixed on the mounting portion 141 after being placed in the protective cover.

[0049] In order to shorten the distance between the active link 130 and the sensing device 140 to improve the sensing accuracy of the sensing device 140, preferably, as Figure 4 and Figure 5 As shown, the first connecting rod 134 is further provided with two protruding blocks 132 extending toward the sensing device 140 , and the two protruding blocks 132 are arranged above the plurality of connecting holes 131 and spaced apart in the lateral direction.

[0050] During the normal operation of the hot rolling mill, the sensing device 140 can always sense the signal of the movable link 130 (specifically, the protruding block 132), but the signal value is unchanged at this time. For example, the signal value is "1", which can indicate that the hot rolling mill is performing the strip conveying operation normally and no warped strip head is detected. Figure 7 As shown, when the lifting belt head appears on the conveying roller system, the lifting belt head will touch the movable link 130 and cause the movable link 130 to rotate along the force direction. When the movable link 130 rotates, the protruding block 132 on the first link 134 also rotates and deviates from the sensing device 140. At this time, the sensing device 140 cannot sense the existence of the movable link 130, and the signal value changes, for example, from "1" to "0", and the changed signal is converted into an electrical signal (i.e., a motion signal) and sent to the control device. After receiving the electrical signal, the control device can control the motor of the conveying roller system to stop running, so that the conveying roller system stops conveying. At this time, the motor can be further controlled to reverse and the strip can be conveyed back in the opposite direction. After the operator cuts off the lifting belt head and confirms on site that there is no problem, the next step of work can be resumed.

[0051] Preferably, the anti-collision detection device 100 further includes a warning device, which is electrically connected to the control device. The control device can also output the electrical signal to the warning device via an intermediate relay when receiving the electrical signal, so that the warning device warns the operator. Exemplarily, the warning device can warn visually (such as a warning light) or auditorily (such as an alarm bell), and those skilled in the art can set it according to actual needs.

[0052] According to the anti-collision detection device 100 of the above scheme, the movable link 130 is arranged above the conveying roller system. When the upturned belt head touches the movable link 130, the movable link 130 moves. After detecting the movement of the movable link 130, the sensing device 140 converts the mechanical signal into an electrical signal and sends it to the control device, and the control device then controls the motor of the conveying roller system to stop running. This scheme can prevent the upturned strip from damaging the auxiliary equipment on the conveying roller system and the clamping roller at the rear, thereby reducing equipment failures and improving production efficiency. In addition, the anti-collision detection device 100 according to the above scheme can also be used in places with 300-500 degrees, high humidity and strong corrosion, and can be used in environments where radar and photoelectric sensors are not suitable for use.

[0053] The above description of various embodiments of the present invention is provided to a person of ordinary skill in the relevant art for the purpose of description. It is not intended to exclude or limit the present invention to a single disclosed embodiment. As above, a person of ordinary skill in the field of the above teachings will understand the various substitutions and variations of the present invention. Therefore, although some alternative embodiments are specifically described, a person of ordinary skill in the art will understand or relatively easily develop other embodiments. The present invention is intended to include all substitutions, modifications and variations of the present invention described herein, as well as other embodiments that fall within the spirit and scope of the present invention described above.

Claims

1. An anti-collision detection device (100) for a hot rolling mill, the hot rolling mill comprising a motor and a conveying roller system, the motor being configured to control the movement of the conveying roller system, characterized in that: The anti-collision detection device (100) comprises: Base (110); A support frame (120), the support frame (120) being connected to the base (110); A movable connecting rod (130), the movable connecting rod (130) being arranged above the conveying roller system and being configured to be movably connected to the supporting frame (120); a sensing device (140), the sensing device (140) being disposed on the support frame (120), and the sensing device (140) being configured to sense the movement of the movable link (130) and to generate a motion signal when the movement of the movable link (130) is sensed; and A control device is electrically connected to the sensing device (140) and is configured to control the action of the motor based on the motion signal.

2. The anti-collision detection device (100) according to claim 1, characterized in that: The base (110) comprises a base body (111) and a sleeve portion (112) extending axially from the base body (111); the support frame (120) is arranged in the sleeve portion (112); a first bearing is arranged in the sleeve portion (112); and the first bearing is arranged between the support frame (120) and the sleeve portion (112).

3. The anti-collision detection device (100) according to claim 2, characterized in that: The support frame (120) is connected to the sleeve portion (112) via a plurality of positioning pins (113).

4. The anti-collision detection device (100) according to claim 1, characterized in that: The support frame (120) comprises a first support frame (121) and a second support frame (122) connected to the first support frame (121) approximately perpendicularly. The support frame (120) further comprises a third support frame (123), wherein the third support frame (123) connects the first support frame (121) and the second support frame (122) to form a triangular support with the first support frame (121) and the second support frame (122).

5. The anti-collision detection device (100) according to claim 4, characterized in that: The movable link (130) includes a first link (134) which is rotatably connected to the support frame (120).

6. The anti-collision detection device (100) according to claim 5, characterized in that: The anti-collision detection device (100) further comprises a connecting shaft (150), the first connecting rod (134) being rotatably connected to the support frame (120) via the connecting shaft (150), and a second bearing being arranged between the connecting shaft (150) and the support frame (120).

7. The anti-collision detection device (100) according to claim 6, characterized in that: The first connecting rod (134) is provided with a plurality of connecting holes (131) along its height direction, and the connecting shaft (150) is configured to be selectively connected to one connecting hole (131) among the plurality of connecting holes (131).

8. The anti-collision detection device (100) according to claim 7, characterized in that: The support frame (120) comprises a connecting sleeve (124) connected to the end of the first support frame (121), and the connecting shaft (150) is connected to the connecting sleeve (124).

9. The anti-collision detection device (100) according to claim 8, characterized in that: The sensing device (140) is configured as a proximity switch, and the proximity switch is mounted on the connecting sleeve (124).

10. The anti-collision detection device (100) according to claim 7, characterized in that: The first connecting rod (134) is also provided with a protruding block (132) extending in the direction of the sensing device, and the protruding block is arranged above the plurality of connecting holes (131).

11. The anti-collision detection device (100) according to claim 5, characterized in that: The movable link (130) further includes a second link (160) configured to be slidably connected to the first link (134) below the first link (134).

12. The anti-collision detection device (100) according to claim 11, characterized in that: The outer wall of the first connecting rod (134) is provided with a slide groove (133) extending along its height direction, and the outer wall of the second connecting rod (160) is provided with a protrusion (161), and the protrusion (161) is assembled in the slide groove (133) and can slide up and down along the slide groove (133).

13. The anti-collision detection device (100) according to claim 1, characterized in that: The anti-collision detection device (100) further comprises a warning device, the warning device is electrically connected to the control device, and the control device is configured to control the warning device to issue a warning when receiving the motion signal.

14. The anti-collision detection device (100) according to claim 1, characterized in that: The cross section of the movable connecting rod (130) is square.

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