Device for preventing lifting transverse moving chain of coping table from being snapped

Abstract

The utility model relates to a device for preventing a lifting and transverse moving chain of a coping table from being snapped, the device comprises a coping table top, a coping table frequency converter, a coping table transverse moving motor, the lifting and transverse moving chain, a sensor, a reflecting device and a PLC slave station, one end of the sensor is connected with a first support, and the first support is fixed below the coping table top; the reflecting device comprises a reflecting film and a steel plate, the reflecting film is fixed to the steel plate, and the lower end of the reflecting device is connected with the second support. One end of the PLC slave station is connected with the sensor through a cable, the other end of the PLC slave station is connected with the grinding table frequency converter through a cable, and the grinding table frequency converter is connected with the grinding table transverse moving motor through a cable. The chain can be monitored and repaired in time, and the problem that the lifting transverse moving chain of the coping table is frequently broken is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of chain-type finishing grinding tables for wide and thick plates, in particular to a device for preventing a lifting and traversing chain of a grinding table from being broken. Background Art

[0002] The chain grinding table for finishing wide and thick plates is mainly responsible for sending the steel plates after rolling and cooling on the cooling bed to the flaw detector and subsequent shearing machine for shearing. The chain grinding table includes a lifting and transverse moving chain, a grinding table table, a grinding table transverse moving motor and a grinding table inverter. The steel plates are transported through multiple sets of lifting and transverse moving chains. The grinding table transverse moving motor controls the operation of the lifting and transverse moving chains. The grinding table inverter adjusts the speed and torque of the grinding table transverse moving motor. The specific working process is: the steel plate is placed on the lifting and transverse moving chain, and the transverse moving motor controls the lifting and transverse moving chain to start running. Multiple sets of lifting and transverse moving chains move the steel plate from the grinding table entrance roller to the grinding table table. After the operation is completed, the steel plate passes through multiple sets of lifting and transverse moving chains and is finally moved transversely to the grinding table exit roller.

[0003] During operation, the chain frequently breaks due to heavy load on the lifting and lateral chain, chain jamming, chain track tilt, and uneven chain force, which seriously affects the normal operation of the production line. It also increases the number of temporary maintenance. Repairing and restoring the chain is time-consuming and labor-intensive, and there are certain safety hazards. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a device for preventing the grinding table lifting and lateral movement chain from breaking. By monitoring the chain's operating conditions and promptly repairing them, the problem of frequent breaking of the grinding table lifting and lateral movement chain is solved.

[0005] According to the utility model, a device for preventing the chain of a grinding table from breaking is proposed, which includes a grinding table top, a grinding table frequency converter, a grinding table transverse motor, a lifting and transverse chain, a sensor, a reflection device and a PLC slave station. One end of the sensor is connected to a bracket one, which is fixed below the grinding table top and is located on one side of multiple sets of lifting and transverse chains; the reflection device includes a reflection film and a steel plate, the reflection film is fixed on the steel plate, one end of the reflection device is connected to a bracket two, and the bracket two is located on the other side of the multiple sets of lifting and transverse chains; one end of the PLC slave station is connected to a remote distance sensor via a cable, and the other end is connected to the grinding table frequency converter via a cable, and the grinding table frequency converter is connected to the grinding table transverse motor via a cable.

[0006] Preferably, the sensor is a long-range distance sensor.

[0007] Preferably, the heights of both the first and second brackets can be adjusted up and down.

[0008] Preferably, the cable is a 5-core cable.

[0009] Preferably, the sensor signal is connected to the PLC slave system and interlocked with the start and stop of the grinding table transverse motor.

[0010] Preferably, the reflecting device is located directly opposite to the sensor, and the sensor transmits a signal that can pass through multiple sets of lifting and transverse movement chains to the reflecting device.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This device is equipped with sensors, reflection devices, PLC slave stations and brackets, and connects the sensor signals to the PLC slave station system, which is interlocked with the start and stop of the grinding table transverse motor. By monitoring whether there is a signal of continuous tension and lifting of the lifting and transverse chain, it indirectly reflects the running status of the chain, thereby controlling the start and stop of the grinding table transverse motor, realizing the monitoring and timely repair of the chain, and solving the problem of frequent breakage of the lifting and transverse chain of the grinding table. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model provides a device for preventing a lifting and traversing chain of a grinding table from being broken.

[0014] Illustration: 1. Sensor; 2. Reflection device; 3. Reflection film; 4. Steel plate; 5. PLC slave station; 6. Bracket 1; 7. Bracket 2; 8. Cable; 9. Grinding table transverse movement motor; 10. Grinding table inverter; 11. Grinding table top; 12. Lifting and transverse movement chain. DETAILED DESCRIPTION

[0015] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0016] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0017] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0018] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0019] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0020] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0021] See Figure 1 , Figure 1A structural schematic diagram of a device for preventing the grinding table chain from breaking in one embodiment of the present application is shown, the device includes a grinding table table 11, a grinding table inverter 10, a grinding table transverse motor 9, a lifting and transverse chain 12, a sensor 1, a reflection device 2 and a PLC slave station 5, one end of the sensor 1 is connected to a bracket 1 6, which is fixed below the grinding table table 11 and is located on one side of the multiple lifting and transverse chains 12; the reflection device 2 includes a reflection film 3 and a steel plate 4, the reflection film 3 is fixed on the steel plate 4, one end of the reflection device 2 is connected to a bracket 2 7, which is located on the other side of the multiple lifting and transverse chains 12, and both the bracket 1 6 and the bracket 2 7 can be adjusted up and down in height; one end of the PLC slave station 5 is connected to the sensor 1 through a cable 8, and the other end is connected to the grinding table inverter 10 through a cable, the grinding table inverter 10 is connected to the grinding table transverse motor 9 through a cable 8, and the cable 8 is a 5-core cable.

[0022] During installation, sensor 1 and its bracket 1 (6) are fixed beneath the grinding table surface (11), on one side of the lifting and traversing chains (12). Reflector 2 and its bracket 2 (7) are fixed directly opposite sensor 1, on the other side of the lifting and traversing chains (12). Sensor 1 is connected to PLC slave station 5 via cable 8, which provides power to sensor 1. After wiring is complete, the heights of bracket 1 (6) and bracket 2 (7) are adjusted so that the signal emitted by sensor 1 can pass through the multiple lifting and traversing chains (12) between them to reflector 2, where it is then reflected by reflector 2 and received by sensor 1.

[0023] When the lifting and transverse moving chain 12 is working normally, the sensor 1 can receive the signal returned by the reflecting device 2. When the lifting and transverse moving chain 12 is stuck, the chain track is tilted, the chain is unevenly stressed, etc., the chain will continue to tighten and lift, blocking the sensor 1. At this time, the signal returned from the reflecting device 2 cannot be received.

[0024] The signals transmitted and received by the sensor 1 are connected to the PLC slave station 5 system. The PLC slave station 5 is connected to the grinding platform transverse motor 9 cable through the grinding platform inverter 10 to realize the control of the start and stop of the transverse motor 9. A program is written to interlock the signal of the sensor 1 with the start and stop of the transverse motor 9. When the signal returned by the reflection device 2 is received, the grinding platform transverse motor 9 starts normally. If no signal is received, the grinding platform transverse motor 9 is turned off, the operation of the lifting and lowering transverse chain 12 is stopped, and the chain is repaired to prevent it from breaking.

[0025] The sensor 1 and the reflector 2 of this device are installed on both sides of multiple groups of lifting and transverse moving chains 12. When the chain is operating normally, the signal emitted by the sensor 1 passes through the transverse moving chain to the reflector 2, and is received by the sensor 1 again after reflection. When a fault occurs, the chain will be tightened and lifted, blocking the sensor. At this time, the signal returned by the reflector 2 cannot be received. When the returned signal is received, the grinding table transverse moving motor 9 starts normally. When no signal is received, the grinding table transverse moving motor 9 is turned off, the operation of the lifting and transverse moving chain is stopped, and the chain is repaired. This device indirectly reflects the operating status of the chain by monitoring whether there is a signal of continuous tightening and lifting of the lifting and transverse moving chain, thereby controlling the start and stop of the grinding table transverse moving motor, realizing the monitoring and timely repair of the chain, and solving the problem of frequent breakage of the lifting and transverse moving chain of the grinding table.

[0026] The various technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the various technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of the present utility model.

[0027] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A device for preventing the lifting and traversing chain of a grinding table from being broken, comprising a grinding table, a grinding table inverter, a grinding table traversing motor and a lifting and traversing chain, characterized in that: Also includes sensors, reflectors and PLC slaves, One end of the sensor is connected to a bracket 1, which is fixed below the grinding table and located on one side of the multiple lifting and transverse movement chains; The reflective device includes a reflective film and a steel plate, the reflective film is fixed to the steel plate, one end of the reflective device is connected to a second bracket, and the second bracket is located on the other side of the multiple lifting and transverse movement chains; One end of the PLC slave station is connected to the remote distance sensor via a cable, and the other end is connected to the grinding table frequency converter via a cable. The grinding table frequency converter is connected to the grinding table traverse motor via a cable.

2. The device for preventing the grinding table lifting and traversing chain from breaking according to claim 1, characterized in that: The sensor is a long-range distance sensor.

3. The device for preventing the grinding table lifting and traversing chain from breaking according to claim 1, characterized in that: The heights of the bracket 1 and the bracket 2 can be adjusted up and down.

4. The device for preventing the grinding table lifting and traversing chain from breaking according to claim 1, characterized in that: The cable is a 5-core cable.

5. The device for preventing the grinding table lifting and traversing chain from breaking according to claim 1, characterized in that: The sensor signal is connected to the PLC slave system and interlocked with the start and stop of the grinding table transverse movement motor.

6. The device for preventing the grinding table lifting and traversing chain from breaking according to claim 1, characterized in that: The reflecting device is located directly opposite to the sensor, and the sensor transmits a signal through multiple groups of lifting and transverse moving chains to the reflecting device.

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