Slitter edge guiding device with grating detection function

Abstract

The invention discloses a slitter edge guide device with a grating detection function, which is used in a metallurgical plate strip production process. An inlet section groove body, an optical grating and an outlet section groove body of the slitter edge guiding device are arranged in the moving direction of slitter edges, the optical grating is arranged between the inlet section groove body and the outlet section groove body, the emitting direction of a lamp bead sensor of the optical grating intersects with the moving direction of the slitter edges, and the lamp bead sensor of the optical grating is arranged along the width of the inlet section groove body and the outlet section groove body. And the grating is arranged on the outer sides of the inlet section groove body and the outlet section groove body. According to the slitter edge guiding device, the safety is guaranteed, meanwhile, the operation condition of slitter edges can be rapidly judged through the grating sensor, even the slitter edge blocking phenomenon can be pre-judged in advance, an execution mechanism can be fed back to participate in production adjustment according to the slitter edge state stored in a database and a corresponding control method, and the production efficiency is improved. Therefore, the plate and strip quality problem caused by blocking of the slitter edges is reduced, and the production quality and efficiency of a production line are improved.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgical equipment, in particular to a waste edge guiding device with grating detection. Background Art

[0002] In the production process of plates and strips in the metallurgical industry, the slitting shearing machine cuts the edges of the plates and strips and controls the production quality of the edges of the plates and strips. The scrap edges generated by cutting are guided to the scrap edge processing equipment through the guide device. The operation process of the scrap edges is dangerous to the operators, so it is impossible to directly monitor the status of the scrap edge operation in real time manually.

[0003] Normally, during the slitting process, the operation of the strip area is often monitored manually. If the scrap edge is blocked or other faults occur during operation, if the emergency stop is not timely after the fault is discovered, the strip edge will stagnate at the slitting point, while the strip in the production line will continue to move forward, resulting in the strip edge tearing or even strip breakage, affecting the manufacturing quality of the strip. In addition, it takes a certain amount of time to deal with the equipment failure before production can be resumed, which will cause the production line to stagnate and directly affect the production efficiency of the production line. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the object of the present invention is to provide a waste edge guiding device with grating detection, which detects the running status of the waste edge through a grating sensor to quickly judge the running status of the waste edge and feed back the detected waste edge running status signal to the device.

[0005] In order to achieve the above-mentioned purpose of the invention, the inlet section trough body, the grating sensor and the outlet section trough body of the scrap edge guiding device of the present invention are arranged along the running direction of the scrap edge.

[0006] Furthermore, the grating sensor is arranged between the entrance section trough body and the exit section trough body, the emission direction of the lamp bead sensor of the grating sensor intersects with the running direction of the waste edge, and the lamp bead sensor is arranged along the width direction of the entrance section trough body and the exit section trough body.

[0007] Furthermore, the spacing L between the lamp bead sensors of the grating sensor is determined by the width and thickness of the cut waste edges that can be sensed.

[0008] Furthermore, the lamp bead sensors of the grating sensor are distributed throughout the channels of the inlet section slot body and the outlet section slot body, and the number of the lamp bead sensors is determined according to the width of the inlet section slot body and the outlet section slot body.

[0009] Furthermore, the grating sensor is placed outside the inlet section tank body and the outlet section tank body.

[0010] Furthermore, the inlet of the inlet section trough body is connected to the waste edge channel of the shearing machine.

[0011] Furthermore, the outlet section trough body is connected to the waste edge channel of the waste edge processing equipment.

[0012] Furthermore, at the joint portion between the inlet section trough body and the outlet section trough body of the waste edge guiding device, the size of the inlet section trough body is smaller than that of the outlet section trough body.

[0013] Furthermore, the inlet section tank body and the outlet section tank body are laterally closed structures.

[0014] Furthermore, the control system of the waste edge guiding device includes a PLC controller and a server containing a database, wherein the database stores the waste edge status and the corresponding execution strategy, and the execution strategy includes a screen alarm and a light alarm transmitted to the client, and a logic control module transmitted to the execution element.

[0015] The grating sensor of the waste edge guiding device of the present invention detects the waste edges passing through the waste edge guiding channel, monitors the running status of the waste edges in real time, and transmits the detected waste edge running status signal to the control system, compares it with the information stored in the database of the server to determine the running status of the waste edges, assist the control system to make adjustments, and control the equipment execution elements to act to change the running status of the waste edges.

[0016] Compared with the prior art, the scrap edge guiding device of the present invention can quickly judge the scrap edge running situation through the grating sensor while ensuring safety, and even predict the scrap edge blocking phenomenon in advance, and can feedback the actuator to participate in production adjustment according to the scrap edge status stored in the database and the corresponding control method, thereby reducing the plate and strip quality problems caused by scrap edge blocking, improving the production quality and efficiency of the production line, and has the following advantages: 1. In terms of production quality and efficiency, the operating status of the waste edge is directly detected through the grating, and the signal is fed back to the PLC controller of the control system to determine the timing of the fault or predict the fault, eliminating the process of manual intervention and judgment, shortening the fault handling time, effectively reducing or eliminating the impact of the fault on the quality, and greatly improving the manufacturing quality of the plate and strip.

[0017] 2. From the perspective of production safety, the running status of the waste edge is directly monitored at close range by the grating sensor, avoiding human intervention. At the same time, the trough of the waste edge guide device adopts a laterally closed structure, and in the docking part of the inlet section trough and the outlet section trough, the size of the inlet section trough is smaller than that of the outlet section trough, which can prevent the waste edge from flying out, and production safety is fully guaranteed.

[0018] 3. In terms of maintenance convenience, the grating sensor is placed outside the slot of the waste edge guide device to facilitate daily maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention.

[0020] Figure 2 for Figure 1 Side view of.

[0021] Figure 3 It is the electrical control flow chart of the present invention.

[0022] In the figure: 1. Entrance section tank; 2. Grating sensor; 3. Exit section tank; 4. Control system; 5. PLC controller; 6. Server; 7. Execution strategy; 8. Screen alarm signal; 9. Light alarm signal; 10. Logic control module; 11 Client; 12. Actuator. DETAILED DESCRIPTION

[0023] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments and in combination with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the scope of protection of the present invention.

[0024] like Figure 1 , Figure 2 , Figure 3 As shown, the inlet section slot 1, grating sensor 2 and outlet section slot 3 of the scrap edge guiding device of the present invention are arranged along the scrap edge running direction, and the scrap edge runs in the inlet section slot 1 and the outlet section slot 3. The grating sensor 2 detects the scrap edge passing through the scrap edge guiding channel and monitors the running state of the scrap edge in real time; the grating sensor 2 transmits the detected scrap edge running state signal to the control system 4, and compares it with the information stored in the database of the server 6 to determine the running state of the scrap edge and assist the control system 4 in making adjustments.

[0025] Preferably, the grating sensor 2 is arranged between the entrance section trough body 1 and the exit section trough body 3 and is arranged horizontally; the emission direction of the lamp bead sensor of the grating sensor 2 intersects with the running direction of the waste edge, so as to facilitate the grating sensor 2 to directly detect the state of the waste edge, and the lamp bead sensor of the grating sensor 2 is arranged along the width direction of the entrance section trough body 1 and the exit section trough body 3; the lamp bead sensor of the grating sensor 2 includes lamp bead sensor I, lamp bead sensor II, lamp bead sensor III, and up to lamp bead sensor N, and the spacing L of each lamp bead sensor is determined according to the width and thickness of the waste edge, so as to effectively sense the cut waste edge; the lamp bead sensors of the grating sensor 2 are distributed throughout the channels of the entrance section trough body 1 and the exit section trough body 3, and the number of the lamp bead sensors is determined according to the width of the entrance section trough body 1 and the exit section trough body 3; the grating sensor 2 is placed on the outside of the entrance section trough body 1 and the exit section trough body 3 to facilitate the maintenance of the grating sensor 2 and prevent the waste edge from damaging the grating sensor 2 due to the running of the waste edge, thereby effectively improving the service life of the waste edge guiding device.

[0026] Preferably, the inlet section trough body 1 is located in the direction of the waste edge running, and the inlet of the inlet section trough body 1 is connected with the waste edge channel of the shearing machine; the outlet section trough body 3 is located in the direction of the waste edge running and the outlet section trough body 3 is connected with the waste edge channel of the waste edge processing equipment; in the connecting part of the inlet section trough body 1 and the outlet section trough body 3 of the waste edge guiding device, the size of the inlet section trough body 1 is smaller than that of the outlet section trough body 3 to prevent the waste edge from flying out of the connecting part during operation; the sides of the inlet section trough body 1 and the outlet section trough body 3 are closed structures, which can effectively prevent the waste edge from splashing.

[0027] Preferably, the control system 4 of the waste edge guiding device includes a PLC controller 5 and a server 6 containing a database, wherein the database stores the waste edge status and the corresponding execution strategy 7, wherein the execution strategy 7 includes a picture alarm and a light alarm transmitted to the client 11, and a logic control module 10 transmitted to the actuator 12; the server 6 of the control system 4 continuously optimizes its own database by automatically collecting and updating the waste edge status information, so that the execution strategy 7 is continuously optimized and the accuracy of the system judgment is improved. The present invention records the signal position and the time frequency of the lamp bead sensor sensed by the grating 2 to monitor the state of the waste edge.

[0028] The state of the waste edge corresponding to the lamp bead signal, taking the broken waste edge as an example, is as follows: Assume that the length of a single waste edge is H, the running speed of the waste edge is V, the spacing length between the N consecutive lamp beads of the grating sensor 2 is consistent with the length of the single waste edge, and the number of times the lamp beads are sensed simultaneously per second is the passing frequency f.

[0029] The monitored waste edge status and interpretation are: Normal: The scrap edge is broken without cutting, and the running speed is stable. The passing frequency f≈V / H×(1±5%), and the number of lamp beads sensed at the same time is ≤N; Two-cut blade: The broken waste edge has two consecutive pieces that are not completely cut off, and the running speed is stable. The frequency is f≈V / (2×H)×(1±5%), and the number of lamp beads sensed at the same time is ≤2×N; Three-cut blade: The scrap edge is broken into three consecutive pieces that are not completely cut off, and the running speed is stable. The frequency is f≈V / (3×H)×(1±5%), and the number of lamp beads sensed at the same time is ≤3×N; Entrance blockage: The broken waste edge is blocked in front of the entrance section trough 1. At this time, its running speed is not stable. In the case of non-continuous knives, the frequency is [V / H×(1-5%)]<f<[V / H×(1+5%)], and the number of lamp beads sensed at the same time is ≤N; in the case of two-continuous knives, the frequency is [V / (2×H)×(1-5%)]<f<[V / (2×H)×(1+5%)], and the number of lamp beads sensed at the same time is ≤2×N; in the case of three-continuous knives, the frequency is [V / (3×H)×(1-5%)]<f<[V / (3×H)×(1+5%)], and the number of lamp beads sensed at the same time is ≤3×N; Exit blockage: The broken waste edge is blocked after the outlet section trough 3. At this time, its running speed is not stable. In the case of no continuous knives, the passing frequency f≈V / H×(1±5%), and the number of lamp beads sensed at the same time is>N; in the case of two continuous knives, the passing frequency f≈V / (2×H)×(1±5%), and the number of lamp beads sensed at the same time is>2×N; in the case of three continuous knives, the passing frequency f≈V / (3×H)×(1±5%), and the number of lamp beads sensed at the same time is>3×N; The state of the waste edge corresponding to the lamp bead signal, taking continuous waste edge as an example, is as follows: Assume that the running speed of the scrap edge is V. When the scrap edge runs smoothly, it swings continuously. The running distance in one swing cycle is S, and it contacts M lamp bead gratings back and forth. The number of times the lamp bead is continuously sensed per second is the passing frequency F.

[0030] The monitored waste edge status and interpretation are: Normal: The waste edge runs smoothly and at a steady speed. Through the frequency F≈V / S×(1±5%), the number of continuously sensed lamp beads is ≤M; Entrance blockage: Continuous waste edges cause the entrance section tank 1 to be blocked. At this time, its running speed is not stable. Through the frequency F<V / S×(1-5%), the number of continuously sensed lamp beads is ≤M; Outlet blockage: Continuous waste edges cause blockage of the inlet section tank 1. At this time, its running speed is not stable. Through the frequency F≈V / S×(1±5%), the number of continuously sensed lamp beads is>M; When the trimmed scrap passes through the slot channel, the lamp bead sensor of the grating 2 will trigger the induction. When the scrap running state changes, the lamp bead sensor of the grating sensor 2 in the area will feed back the signal to the PLC controller 5 of the control system 4, and then upload it to the server 6 through the PLC controller 5. The server 6 compares the received signal with the fault signal pre-stored in the database, judges or predicts the running state of the scrap, retrieves the corresponding execution strategy 7, and feeds back the signal to the PLC controller 5. The PLC controller 5 transmits the execution strategy 7 to the corresponding client 11 and the actuator 12.

[0031] The screen alarm signal 8 and the alarm light signal 9 in the execution strategy 7 are transmitted to the client 11, prompting manual intervention to change the waste edge state.

[0032] The logic control module 10 in the execution strategy 7 is transmitted to the execution element 12, and the control device execution element takes action to change the waste edge state.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A waste edge guiding device with grating detection, characterized in that: The inlet section trough body (1), the grating sensor (2) and the outlet section trough body (3) of the scrap edge guiding device are arranged along the running direction of the scrap edge.

2. The scrap edge guiding device with grating detection according to claim 1, characterized in that: The grating sensor (2) is arranged between the entrance section trough body (1) and the exit section trough body (3); the emission direction of the lamp bead sensor of the grating sensor (2) intersects with the running direction of the waste edge; and the lamp bead sensor is arranged along the width direction of the entrance section trough body (1) and the exit section trough body (3).

3. The scrap edge guiding device with grating detection according to claim 1, characterized in that: The spacing L between the lamp bead sensors of the grating sensor (2) is determined by the width and thickness of the cut waste edges that can be sensed.

4. A waste edge guiding device with grating detection according to claim 1, characterized in that: The lamp bead sensors of the grating sensor (2) are distributed throughout the channels of the inlet section slot body (1) and the outlet section slot body (3), and the number of the lamp bead sensors is determined according to the width of the inlet section slot body (1) and the outlet section slot body (3).

5. The scrap edge guiding device with grating detection according to claim 1, characterized in that: The grating sensor (2) is placed outside the inlet section tank body (1) and the outlet section tank body (3).

6. A scrap edge guiding device with grating detection according to claim 1, characterized in that: The inlet of the inlet section tank body (1) is butted against the waste channel of the shearing machine.

7. The scrap edge guiding device with grating detection according to claim 1, characterized in that: The outlet section tank body (3) is connected to the waste edge channel of the waste edge processing equipment.

8. The scrap edge guiding device with grating detection function according to claim 1, characterized in that: At the joint portion between the inlet section trough body (1) and the outlet section trough body (3) of the waste edge guiding device, the size of the inlet section trough body (1) is smaller than that of the outlet section trough body (3).

9. The scrap edge guiding device with grating detection according to claim 1, characterized in that: The inlet section tank body (1) and the outlet section tank body (3) are laterally closed structures.

10. The scrap edge guiding device with grating detection according to claim 1, characterized in that: The control system (4) of the waste edge guiding device comprises a PLC controller (5) and a server (6) including a database, wherein the database stores waste edge status and corresponding execution strategies (7), and the execution strategies (7) comprise a screen alarm and a light alarm transmitted to a client (11), and a logic control module (10) transmitted to an execution element (12).

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