Alarm reminding device for steel pipe joint detection

Abstract

The utility model relates to the technical field of steel pipe quality detection equipment, in particular to a steel pipe joint detection alarm reminding device which is matched with a rolling mill for use, the rolling mill comprises an upper roller frame, a lower roller frame and a lifting frame used for adjusting the space height of the upper roller frame, and the bottom end of the lifting frame is connected with the upper roller frame in a hooking mode. The device comprises a vibration sensor and an audible and visual alarm, the vibration sensor is installed on the top of an upper roller frame, the audible and visual alarm is installed on equipment of a production line through an installation base, and the vibration sensor and the audible and visual alarm are both connected into a PLC control system. The device accurately detects the weld joints and reminds production personnel, the screening precision and efficiency of the steel pipes with the weld joints are effectively improved, and then the quality of bundled steel pipes is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of steel pipe quality inspection equipment, and in particular to a steel pipe joint detection alarm and reminder device. Background Technology

[0002] Steel pipes are generally made by rolling and welding strip steel. Adjacent strip steel coils need to be connected end to end by welding to ensure assembly line production. However, there is a quality difference between steel pipes with welded joints and those without. Steel pipes with welded joints affect actual use and sales, so it is necessary to screen out steel pipes with welded joints.

[0003] Currently, the selection of steel pipes with welded joints is mainly carried out by production workers who identify and screen the steel pipes. However, production workers are often responsible for multiple tasks on the production line. During the production process, due to untimely supervision or negligence, steel pipes with welded joints may be mixed in with normal steel pipes, which will then affect the quality of the bundled steel pipes during stacking and packaging. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the present invention provides a steel pipe joint detection alarm and reminder device.

[0005] The steel pipe joint detection alarm and reminder device provided by this utility model adopts the following technical solution:

[0006] A steel pipe joint detection alarm and reminder device is used in conjunction with a rolling mill. The rolling mill includes an upper rolling mill frame, a lower rolling mill frame, and a lifting frame for adjusting the height of the upper rolling mill frame. The bottom end of the lifting frame is hooked to the upper rolling mill frame, and there is an existing gap at the hook. The device includes a vibration sensor and an audible and visual alarm. The vibration sensor is installed on the top of the upper rolling mill frame, and the audible and visual alarm is installed on the equipment of the production line via a mounting base. Both the vibration sensor and the audible and visual alarm are connected to a PLC control system.

[0007] By adopting the above technical solution, when the strip steel weld joint passes through the rolls of the first rolling mill, the vibration sensor detects that the vibration of the upper roll stand exceeds the normal value. After comparison by the PLC system, a signal is output, and the audible and visual alarm reminds the production personnel that a weld joint has been detected. The production personnel then proceed to the exit of the rolling mill and pick out the steel pipe with the weld joint. This device accurately detects the weld joint and reminds the production personnel, effectively improving the screening accuracy and efficiency of steel pipes with weld joints, thereby improving the quality of bundled steel pipes.

[0008] Optionally, the mounting base includes a base plate, with a side plate for surrounding the audible and visual alarm vertically fixed to the top surface of the base plate. A top rod is slidably inserted through the side plate, and a pressure block for abutting and fixing the audible and visual alarm is provided at the end of the top rod. A pull rod is provided at the other end of the top rod, and a baffle is fixedly fitted on the top rod. A spring is also fitted on the top rod for elastically driving the baffle to move closer to the audible and visual alarm.

[0009] By adopting the above technical solution, the spring elastically drives the baffle, the baffle drives the top rod, and the top rod drives the pressure block, thereby fixing the sound and light alarm in the mounting base, which facilitates the installation or removal of the sound and light alarm.

[0010] Optionally, a vertical groove is provided on the side plate, and a slider is vertically connected in the groove. A top rod slides through the slider, and a spring elastically supports the slider between the slider and the baffle. A lifting mechanism for adjusting the height of the slider is provided between the slider and the side plate.

[0011] By adopting the above technical solution, the position of the top rod can be changed through the lifting mechanism to adapt to different models of audible and visual alarms.

[0012] Optionally, the lifting mechanism includes a knob screw threaded onto the top of the side plate, the knob screw passing through a slide groove, and the end of the knob screw being rotatably connected to the slider.

[0013] By adopting the above technical solution, simply turning the knob screw can drive the slider to move up and down, making operation simple.

[0014] Optionally, a stop block is fixed to the end of the knob screw, and a connecting block is fixed to the slider. A cavity is provided inside the connecting block, and the stop block is rotatably connected to the cavity.

[0015] Optionally, a limiting plate is fixedly connected to the outer wall of the top rod along the length direction, and a limiting groove adapted to the limiting plate is opened on the slider, and the limiting plate slides through the limiting groove.

[0016] By adopting the above technical solution, pulling the top rod outward to its limit state will cause the limiting plate to disengage from the limiting groove. Then, rotating the top rod will cause the end of the limiting plate to abut against the outer wall of the slider, thereby fixing the top rod and facilitating the installation or removal of the audible and visual alarm.

[0017] Optionally, the end of the push rod is hinged to the ball of the pressure block.

[0018] By adopting the above technical solution, it is easier for the pressure block to adhere more stably to the surface of the sound and light alarm, thus improving the fixing effect.

[0019] Optionally, multiple side plates are arranged in a circle, with gaps between adjacent side plates for the wires of the audible and visual alarm to pass through.

[0020] By adopting the above technical solution, it is easier to arrange the wires of the audible and visual alarm. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the steel pipe joint detection alarm and reminder device according to an embodiment of this utility model.

[0022] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle.

[0023] Figure 3 This is a schematic diagram of the audible and visual alarm device and its mounting base in accordance with an embodiment of this utility model.

[0024] Figure 4 This is a partial structural cross-sectional view of the mounting base according to an embodiment of the present utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Rolling mill; 10. Upper roll stand; 11. Lower roll stand; 12. Lifting frame; 2. Vibration sensor; 3. Audible and visual alarm; 4. Mounting base; 40. Base plate; 41. Side plate; 410. Slide groove; 42. Slider; 420. Limiting groove; 43. Top rod; 44. Pressure block; 440. Pressure plate; 441. Shim; 45. Tie rod; 46. Baffle; 47. Spring; 48. Limiting plate; 49. Lifting mechanism; 490. Knob screw; 491. Stop block; 492. Connecting block; 5. Bracket. Detailed Implementation

[0026] The following combination Figures 1-4 The present invention will be described in further detail below.

[0027] This utility model discloses a steel pipe joint detection alarm and reminder device. (Refer to...) Figure 1 and Figure 2 The steel pipe joint detection alarm device is used in conjunction with the rolling mill 1. The rolling mill 1 includes an upper roll frame 10, a lower roll frame 11, and a lifting frame 12 for adjusting the spatial height of the upper roll frame 10. The bottom end of the lifting frame 12 is hooked to the upper roll frame 10, and there is an existing gap at the hook.

[0028] Reference Figure 1 and Figure 2 The device includes a vibration sensor 2 installed on the top of the upper roll stand 10 of the first rolling mill 1 and an audible and visual alarm 3 installed in the previous process. The vibration sensor 2 and the audible and visual alarm 3 are connected to the PLC control system. The PLC uses analog input to detect dynamic production values ​​and then sets effective values ​​according to the actual situation on site. When the weld joint of the strip passes through the rolls, the vibration sensor 2 detects that the vibration of the upper roll stand 10 exceeds the normal value. After comparison by the PLC, a signal is output, and the audible and visual alarm 3 reminds the production personnel that a weld joint has been detected. The production personnel then proceed to the exit of the last rolling mill 1 and pick out the steel pipe with the weld joint.

[0029] Reference Figure 1 , Figure 3 and Figure 4 To facilitate the installation and maintenance of the audible and visual alarm 3, the audible and visual alarm 3 is mounted on the bracket 5 within the production line via a mounting base 4. The mounting base 4 includes a base plate 40, which can be a flange plate and fixed to the top of the bracket 5 or other equipment housing with bolts. The specific installation position of the mounting base 4 can be selected according to the actual usage and is not limited. Multiple side plates 41 are vertically fixed to the top surface of the base plate 40. In this embodiment, four side plates 41 are used as an example. The four side plates 41 are evenly arranged in a circle, and a gap is left between two adjacent side plates 41 for the wires of the audible and visual alarm 3 to be led out. The audible and visual alarm 3 is installed in the space enclosed by the four side plates 41.

[0030] Reference Figure 3 and Figure 4 A vertical groove 410 is provided on the side plate 41. A slider 42 with an H-shaped cross-section slides up and down in the groove 410. A top rod 43 is vertically inserted through the middle of the slider 42. A pressure block 44 for abutting against the outer wall of the sound and light alarm 3 is ball-hinged at the end of the top rod 43. The pressure block 44 includes a pressure plate 440 and a gasket 441. A pull rod 45 is vertically fixed to the end of the top rod 43 away from the pressure block 44. A baffle 46 is sleeved and fixed on the top rod 43. The baffle 46 is located on the side of the side plate 41 away from the pull rod 45. A spring 47 is sleeved on the pull rod 45. The spring 47 is elastically supported between the slider 42 and the baffle 46.

[0031] Reference Figure 3 and Figure 4 To facilitate the fixing of the top rod 43 during the installation or removal of the audible and visual alarm 3, a limiting plate 48 is fixedly attached to the outer wall of the top rod 43 along the length direction. A limiting groove 420 adapted to the limiting plate 48 is provided on the corresponding slider 42. The limiting plate 48 slides through the limiting groove 420. Pulling the top rod 43 outward to the limit state will disengage the limiting plate 48 from the limiting groove 420. Then, rotating the top rod 43 will cause the end of the limiting plate 48 to abut against the surface of the slider 42, thereby restricting the movement of the top rod 43.

[0032] Reference Figure 3 and Figure 4 To accommodate different lengths of the audible and visual alarm 3, the side plate 41 is also equipped with a lifting mechanism 49 for adjusting the height of the top rod 43. The lifting mechanism 49 includes a knob screw 490 that is vertically threaded onto the top of the side plate 41. The bottom end of the knob screw 490 passes into the slide groove 410. A circular plate-shaped stop block 491 is fixedly connected to the bottom end of the knob screw 490. A connecting block 492 is fixedly connected to the top surface of the slider 42. A cavity is provided in the connecting block 492 to accommodate the stop block 491. The stop block 491 is rotatably connected to the cavity. That is, by turning the knob screw 490, the slider 42 can be moved up and down, thereby changing the position of the top rod 43.

[0033] The implementation principle of the steel pipe joint detection alarm reminder device in this utility model embodiment is as follows: when the strip steel weld joint passes through the roll of the first rolling mill 1, the vibration sensor 2 detects that the vibration of the upper roll frame 10 exceeds the normal value. After comparison by the PLC system, the signal is output and the audible and visual alarm 3 reminds the production personnel that the weld joint has been detected. The production personnel then proceed to the exit of the rolling mill 1 and pick out the steel pipe with the weld joint.

[0034] The adjustable mounting base 4 allows for easy installation of the audible and visual alarm 3 in the desired position. The mounting base 4, along with components such as the top rod 43 and spring 47, effectively secures the audible and visual alarm 3. It is also compatible with different sizes and models of audible and visual alarms 3 and can be applied to other scenarios. This device accurately detects weld joints and alerts production personnel, effectively improving the screening accuracy and efficiency of steel pipes with weld joints, thereby enhancing the quality of bundled steel pipes.

[0035] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A steel pipe joint detection alarm and reminder device, characterized in that: Used in conjunction with a rolling mill (1), the rolling mill (1) includes an upper roll frame (10), a lower roll frame (11), and a lifting frame (12) for adjusting the spatial height of the upper roll frame (10). The bottom end of the lifting frame (12) is hooked to the upper roll frame (10), and there is an existing gap at the hook. The device includes a vibration sensor (2) and an audible and visual alarm (3). The vibration sensor (2) is installed on the top of the upper roll frame (10), and the audible and visual alarm (3) is installed on the equipment of the production line through a mounting base (4). Both the vibration sensor (2) and the audible and visual alarm (3) are connected to the PLC control system.

2. The steel pipe joint detection alarm and reminder device according to claim 1, characterized in that: The mounting base (4) includes a base plate (40), and a side plate (41) for surrounding the audible and visual alarm (3) is vertically fixed to the top surface of the base plate (40). A top rod (43) is slidably inserted on the side plate (41). A pressure block (44) for abutting and fixing the audible and visual alarm (3) is provided at the end of the top rod (43). A pull rod (45) is provided at the other end of the top rod (43). A baffle (46) is fixed on the top rod (43). A spring (47) for elastically driving the baffle (46) to move closer to the audible and visual alarm (3) is also fitted on the top rod (43).

3. The steel pipe joint detection alarm and reminder device according to claim 2, characterized in that: A vertical groove (410) is provided on the side plate (41), and a slider (42) is vertically connected in the groove (410). A top rod (43) slides through the slider (42), and a spring (47) is elastically supported between the slider (42) and the baffle (46). A lifting mechanism (49) for adjusting the spatial height of the slider (42) is provided between the slider (42) and the side plate (41).

4. The steel pipe joint detection alarm and reminder device according to claim 3, characterized in that: The lifting mechanism (49) includes a knob screw (490) threaded onto the top of the side plate (41), the knob screw (490) passing through the slide groove (410), and the end of the knob screw (490) being rotatably connected to the slider (42).

5. The steel pipe joint detection alarm and reminder device according to claim 4, characterized in that: A stop block (491) is fixedly connected to the end of the knob screw (490), and a connecting block (492) is fixedly connected to the slider (42). A cavity is provided inside the connecting block (492), and the stop block (491) is rotatably connected to the cavity.

6. The steel pipe joint detection alarm and reminder device according to claim 3, characterized in that: A limiting plate (48) is fixedly connected to the outer wall of the top rod (43) along the length direction. A limiting groove (420) adapted to the limiting plate (48) is provided on the slider (42). The limiting plate (48) slides through the limiting groove (420).

7. The steel pipe joint detection alarm and reminder device according to claim 2, characterized in that: The end of the push rod (43) is ball-jointed with the pressure block (44).

8. The steel pipe joint detection alarm and reminder device according to claim 2, characterized in that: Multiple side plates (41) are arranged in a circular pattern, and a gap is provided between two adjacent side plates (41) for the wires of the sound and light alarm (3) to pass through.

Images