A hot rolling finishing line safety control system and method

Abstract

The application discloses a hot-rolling finishing operation line safety control system and method, which comprises a safety fence, a safety door, a safety PCC and an access control device. The safety fence is arranged at the periphery of a full-automatic hot-rolling finishing unit and divides the full-automatic hot-rolling finishing unit into multiple safety areas. The safety door has multiple doors and is arranged on the safety fence and corresponds to each safety area. The safety PCC establishes data communication with the safety door, controls the opening and closing of the safety door, and also establishes data communication with a main PCC of the full-automatic hot-rolling finishing unit. The access control device is arranged on the safety door and establishes data communication with the safety PCC. The application solves the safety problem of the full-automatic hot-rolling finishing unit, guarantees safety, and minimally influences production rhythm and capacity.

Description

TECHNICAL FIELD

[0001] The present application relates to hot rolling finishing unit technology, more particularly, to a hot rolling finishing line safety control system and method. BACKGROUND

[0002] The existing steel enterprise 2050 hot-rolled high-strength steel skinning unit is a full-automatic hot-rolling finishing unit. Since the full-automatic hot-rolling finishing unit is full-automatic, it brings new problems to control and safety. How to ensure the safety of the operating personnel in the case that the unit will act at any time.

[0003] A safety fence design (such as a robot safety fence) is adopted on other full-automatic equipment. When the safety fence door is opened, the full-automatic equipment will stop. However, the full-automatic hot-rolling finishing unit still needs the assistance of workers in some areas, so the simple full-stop scheme has an adverse effect on production rhythm and capacity. SUMMARY

[0004] In view of the defects in the prior art, the purpose of the present application is to provide a hot-rolling finishing line safety control system and method, which solves the safety problem of the full-automatic hot-rolling finishing unit, ensures safety, and has minimal impact on production rhythm and capacity.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0006] The present application provides a hot-rolling finishing line safety control system in the first aspect, comprising:

[0007] A safety fence is arranged on the periphery of the full-automatic hot-rolling finishing unit and divides the full-automatic hot-rolling finishing unit into multiple safety areas;

[0008] A safety door having multiple doors is arranged on the safety fence and corresponds to each safety area;

[0009] A safety PCC is in data communication with the safety door to control the opening and closing of the safety door, and is also in data communication with the main PCC of the full-automatic hot-rolling finishing unit;

[0010] An access control device is arranged on the safety door and is in data communication with the safety PCC.

[0011] Preferably, each safety area of the full-automatic hot-rolling finishing unit includes an entry loading area, a main operating line area, a quality inspection area, an exit unloading area, and an entry robot unpacking area and an exit robot marking area.

[0012] Preferably, multiple safety doors are opened in each safety area of the full-automatic hot-rolling finishing unit.

[0013] The security fence is preferably further connected with an IC card frequency band detector.

[0014] The second aspect of the present application provides a safety control method for a hot rolling finishing line, which is executed by the safety control system for the hot rolling finishing line provided in the first aspect of the present application.

[0015] S1, a person holds an IC card to a certain safety area and brushes the access control device on any of the safety doors;

[0016] S2, after receiving the card brushing request, the safety PCC executes the corresponding safety strategy according to the authority of the IC card;

[0017] S3, the safety door is opened, and the person enters a certain safety area.

[0018] Preferably, the authority of the IC card in the step S2 includes full stop, half stop and non-stop authority.

[0019] Preferably, the safety strategy corresponding to the full stop authority specifically includes:

[0020] The safety PCC requests the main PCC to stop, the main PCC receives the request, ends the automatic working mode of the full-automatic hot rolling finishing unit, locks the related equipment, and then answers the safety PCC, and the safety PCC receives the confirmation response of the main PCC, opens the corresponding safety door to allow personnel to enter;

[0021] The safety strategy corresponding to the half stop authority specifically includes:

[0022] The safety PCC requests the main PCC to stop the automatic working mode, the main PCC receives the request, ends the automatic working mode of the full-automatic hot rolling finishing unit, and answers the safety PCC, the safety PCC receives the confirmation response of the main PCC, opens the corresponding safety door to allow personnel to enter, and personnel enters the full-automatic hot rolling finishing unit through the manual mode to drive the related equipment, but cannot start the automatic working mode;

[0023] The safety strategy corresponding to the non-stop authority specifically includes:

[0024] The safety door is immediately opened, and the full-automatic hot rolling finishing unit is not affected by the stop.

[0025] Preferably, when entering the quality inspection area, any authority of the IC card adopts the following corresponding safety strategy:

[0026] The safe PCC receives the request of entering the safe door, requests the main PCC to slow down the operating line of the full-automatic hot rolling and finishing unit to the threading speed, the main PCC slows down after receiving the request and replies to the safe PCC when the actual speed reaches the threading speed, and the safe PCC opens the safe door for the operator to enter.

[0027] Preferably, when entering the entrance robot unwrapping area and the exit robot marking area, the IC card adopts the robot area safety strategy.

[0028] The hot rolling and finishing operating line safety control system and method provided by the application has the following advantages:

[0029] 1) The full-automatic hot rolling and finishing unit is controlled in different areas, and the full-automatic hot rolling and finishing unit is divided into several safety areas, when the personnel enter different areas, only the safety strategy of the area is triggered, and other areas are not affected.

[0030] 2) The IC card is controlled in different permissions, different permissions are set for different post personnel, three permissions of full stop, half stop and no stop are set, and different safety strategies are given to the personnel entering the safety fence area. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a structural frame schematic diagram of the hot rolling and finishing operating line safety control system of the application.

[0032] Figure 2 It is a flow schematic diagram of the hot rolling and finishing operating line safety control method of the application. DETAILED DESCRIPTION

[0033] In order to better understand the above technical solutions of the application, the technical solutions of the application are further described below in combination with the drawings and examples.

[0034] In combination with Figure 1 The hot rolling and finishing operating line safety control system provided by the application comprises:

[0035] The safety fence 1 is arranged at the periphery of the full-automatic hot rolling and finishing unit 100 and divides the full-automatic hot rolling and finishing unit 100 into multiple safety areas.

[0036] The safe door 2 has multiple doors and is arranged on the safety fence 1 and corresponds to each safety area of the full-automatic hot rolling and finishing unit, multiple safe doors 2 can be arranged in one safety area, and the same safety strategy is adopted in the same safety area when the personnel enter any safe door 2 of the same safety area.

[0037] The safety PCC 3 establishes data communication with the safety door 2 to control opening and closing of the safety door 2, and also establishes data communication with a main PCC 4 of the full-automatic hot-rolling finishing unit;

[0038] The access control device is arranged on the safety door 2 and establishes data communication with the safety PCC 3 to lock the safety door 2.

[0039] The safety areas of the full-automatic hot-rolling finishing unit include an entrance loading area, a main working line area, a quality inspection area, an exit unloading area, and an entrance robot unwrapping area and an exit robot marking area, wherein the entrance robot unwrapping area and the exit robot marking area are two separately arranged robot areas.

[0040] The safety fence 1 is also connected with an IC card frequency band detector 5, the IC card frequency band detector 5 is a non-contact IC card, and the IC card frequency band detector 5 and a card reader complete read-write operation through radio waves. The communication frequency between the two is 13.56 MHZ. The non-contact IC card itself is a passive card, when the card is read and written by the reader, the signal emitted by the reader is composed of two parts: one part is a power signal, which is received by the card and generates a momentary energy with its L / C to supply the chip work. The other part is the command and data signal, which instructs the chip to complete data reading, modification, storage, etc., and returns a signal to the reader to complete a read-write operation. The reader is generally composed of a single-chip microcomputer, a special intelligent module and an antenna, and is equipped with a communication interface with a PC, a printing port, an I / O port, etc., so as to be applied to different fields.

[0041] In combination with Figure 2 The application also provides a hot-rolling finishing working line safety control method, and the following steps are executed by using the hot-rolling finishing working line safety control system of the application:

[0042] S1, a person holds an IC card to an access control device on any one of safety doors in a certain safety area;

[0043] S2, after receiving the card swiping request, the safety PCC executes corresponding safety strategies according to the permission of the IC card;

[0044] S3, the safety door is opened, and the person enters the certain safety area.

[0045] The permission of the IC card in the above step S2 includes full-stop permission, half-stop permission and non-stop permission.

[0046] The safety strategy corresponding to the full-stop permission specifically includes:

[0047] The safety PCC 3 requests shutdown from the main PCC 4, the main PCC 4 receives the request, ends the automatic working mode of the full-automatic hot rolling and finishing unit, locks the related equipment, and then answers the safety PCC, the safety PCC receives the confirmation answer of the main PCC, opens the corresponding safety door to allow personnel to enter. Such a safety strategy is mainly authorized to general operators, and this authority is invalid in the main working line area, that is, the main working line is in high-speed production, and general operators are prohibited from entering;

[0048] The safety PCC requests shutdown from the main PCC 4, the main PCC 4 receives the request, ends the automatic working mode of the full-automatic hot rolling and finishing unit, locks the related equipment, and then answers the safety PCC, the safety PCC receives the confirmation answer of the main PCC, opens the corresponding safety door to allow personnel to enter. Such a safety strategy is mainly authorized to general operators, and this authority is invalid in the main working line area, that is, the main working line is in high-speed production, and general operators are prohibited from entering;

[0049] The safety PCC requests shutdown from the main PCC 4, the main PCC 4 receives the request, ends the automatic working mode of the full-automatic hot rolling and finishing unit, locks the related equipment, and then answers the safety PCC, the safety PCC receives the confirmation answer of the main PCC, opens the corresponding safety door to allow personnel to enter. Such a safety strategy is mainly authorized to general operators, and this authority is invalid in the main working line area, that is, the main working line is in high-speed production, and general operators are prohibited from entering;

[0050] The safety PCC requests shutdown from the main PCC 4, the main PCC 4 receives the request, ends the automatic working mode of the full-automatic hot rolling and finishing unit, locks the related equipment, and then answers the safety PCC, the safety PCC receives the confirmation answer of the main PCC, opens the corresponding safety door to allow personnel to enter. Such a safety strategy is mainly authorized to general operators, and this authority is invalid in the main working line area, that is, the main working line is in high-speed production, and general operators are prohibited from entering;

[0051] The safety door is immediately opened, and the full-automatic hot rolling and finishing unit is not affected by shutdown. Such a safety strategy is mainly authorized to device experts and maintenance experts.

[0052] When entering the quality inspection area, any authority of the IC card adopts the following corresponding safety strategy:

[0053] The safety PCC receives the request to enter the safety door, requests the main PCC to slow down the working line of the full-automatic hot rolling and finishing unit to the threading speed, the main PCC receives the request, executes the speed reduction, and answers the safety PCC after the actual speed reaches the threading speed, and the safety PCC opens the safety door for the operator to enter.

[0054] When entering the entrance robot unwinding area and the exit robot marking area, any authority of the IC card adopts the robot area safety strategy.

[0055] Those skilled in the art of the present technology should recognize that the above embodiments are only used to illustrate the present application, and are not used as a limitation of the present application, as long as the changes and modifications of the above described embodiments are within the scope of the spirit of the present application.

Claims

1. A safety control method for a hot rolling finishing line used in a safety control system for a hot rolling finishing line, characterized in that, The safety control system for the hot rolling finishing line includes: Safety fences are set up around the fully automated hot rolling mill, dividing the fully automated hot rolling mill into multiple safety zones; The safety gate has multiple doors, all of which are installed on the safety fence and correspond to each of the safety zones; The safety PCC establishes data communication with the safety door to control the opening and closing of the safety door, and also establishes data communication with the main PCC of the fully automatic hot rolling finishing unit. The access control device is installed on the security door and establishes data communication with the security PCC. The safety control method for the hot rolling finishing line shall be implemented in the following steps: S1. Personnel use an IC card to swipe the access control device on any of the security doors in a certain security area; S2. After receiving the card swipe request, the security PCC executes the corresponding security policy according to the IC card's permissions. S3. The security door opens, and personnel enter a designated security area. The permissions of the IC card in step S2 include full shutdown, partial shutdown, and no shutdown permissions. The security policy corresponding to the full shutdown permission specifically includes: The safety PCC requests a shutdown from the main PCC. Upon receiving the request, the main PCC terminates the automatic operation mode of the fully automatic hot rolling finishing unit, locks the relevant equipment, and then responds to the safety PCC. After receiving the confirmation response from the main PCC, the safety PCC opens the corresponding safety door to allow personnel to enter. The security policy corresponding to the partial shutdown permission specifically includes: The safety PCC requests the main PCC to stop the automatic operation mode. After receiving the request, the main PCC ends the automatic operation mode of the fully automatic hot rolling finishing unit and responds to the safety PCC. After receiving the confirmation response from the main PCC, the safety PCC opens the corresponding safety door to allow personnel to enter. After entering, personnel manually operate the relevant equipment of the fully automatic hot rolling finishing unit, but cannot start the automatic operation mode. The security policy corresponding to the non-disruption permission specifically includes: The safety door opens immediately, and the fully automatic hot rolling finishing unit is unaffected by the shutdown.

2. The safety control method for a hot rolling finishing line according to claim 1, characterized in that: The safety zones of the fully automated hot rolling finishing unit include the inlet feeding area, the main production line area, the quality inspection area, the outlet unloading area, the inlet robot unbundling area, and the outlet robot marking area.

3. The safety control method for a hot rolling finishing line according to claim 2, characterized in that: Each safety zone of the fully automated hot rolling finishing unit has multiple safety doors.

4. The safety control method for a hot rolling finishing line according to claim 1, characterized in that: The safety fence is also connected to an IC card frequency band detector.

5. The safety control method for a hot rolling finishing line according to claim 2, characterized in that, When entering the quality inspection area, any permissions granted by the IC card are subject to the following corresponding security policies: When the safety PCC receives a request to enter the safety door, it requests the main PCC to decelerate the fully automatic hot rolling finishing unit's production line to the threading speed. After receiving the request, the main PCC decelerates and responds to the safety PCC once the actual speed reaches the threading speed. The safety PCC then opens the safety door for the operator to enter.

6. The safety control method for a hot rolling finishing line according to claim 2, characterized in that, When entering the entrance robot unpacking area or the exit robot marking area, the IC card's permissions are subject to the robot area security policy.

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