Safety control system and method for hot rolling finishing operation line

Abstract

The invention discloses a safety control system and method for a hot rolling finishing operation line, and the system comprises a safety fence which is disposed at the periphery of a full-automatic hot rolling finishing unit and divides the full-automatic hot rolling finishing unit into a plurality of safety regions; the multiple safety doors are arranged on the safety fence and correspond to the safety areas; the safety PCC establishes data communication with the safety door, is used for controlling opening and closing of the safety door and also establishes data communication with a main PCC of the full-automatic hot rolling finishing unit; and the access control device is arranged on the safety door and establishes data communication with the safety PCC. The safety problem of the full-automatic hot rolling finishing unit is solved, safety needs to be guaranteed, and the minimum influence on the production rhythm and the productivity is achieved.

Description

Technical Field

[0001] The invention relates to hot rolling finishing unit technology, and more specifically to a hot rolling finishing line safety control system and method. Background Art

[0002] The existing steel enterprise's 2050 hot-rolled high-strength steel flat-pass unit is a fully automatic hot-rolled finishing unit. The full automation of the unit also brings new challenges to control and safety, that is, how to ensure the safety of operators when the unit may be in motion at any time.

[0003] Safety fence designs (such as robot safety fences) are used on other fully automatic equipment. When the safety fence door is opened, the fully automatic equipment will shut down. However, some areas of the fully automatic hot rolling finishing unit still require the assistance of staff. Therefore, a simple complete shutdown plan is adopted, which has an adverse effect on production rhythm and production capacity. Summary of the invention

[0004] In view of the defects existing in the prior art, the purpose of the present invention is to provide a hot rolling finishing line safety control system and method to solve the safety problems of the full-automatic hot rolling finishing unit, which not only ensures safety but also minimizes the impact on production rhythm and production capacity.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] A first aspect of the present invention provides a hot rolling finishing line safety control system, comprising:

[0007] A safety fence is provided at the periphery of the fully automatic hot rolling finishing mill and divides the fully automatic hot rolling finishing mill into a plurality of safety areas;

[0008] A plurality of safety doors are provided on the safety fence, corresponding to each of the safety areas;

[0009] A safety PCC, which 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;

[0010] The access control device is arranged on the security door and establishes data communication with the security PCC.

[0011] Preferably, the safety areas of the fully automatic hot rolling finishing unit include an entrance loading area, a main operation line area, a quality inspection area, a post-discharging unloading area, an entrance robot unbundling area, and an exit robot marking area.

[0012] Preferably, each safety area of ​​the fully automatic hot rolling finishing unit has a plurality of safety doors.

[0013] Preferably, the safety fence is also connected to an IC card frequency band detector.

[0014] The second aspect of the present invention provides a hot rolling finishing line safety control method, which uses the hot rolling finishing line safety control system provided by the first aspect of the present invention to perform the following steps:

[0015] S1. A person goes to a certain security area with an IC card and swipes the access control device on any security door;

[0016] S2. After receiving the card swiping request, the secure PCC executes the corresponding security policy according to the authority of the IC card;

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

[0018] Preferably, the authority of the IC card in step S2 includes full shutdown, half shutdown and no shutdown authority.

[0019] Preferably, the security policy corresponding to the full shutdown authority specifically includes:

[0020] The safety PCC requests the main PCC to shut down. After receiving the request, the main PCC terminates the automatic working mode of the fully automatic hot rolling finishing mill and locks related 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.

[0021] The security policies corresponding to the semi-shutdown authority specifically include:

[0022] The safety PCC requests the main PCC to stop the automatic working mode. After receiving the request, the main PCC ends the automatic working mode of the full-automatic hot rolling finishing mill 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, the personnel jog the relevant equipment of the full-automatic hot rolling finishing mill in manual mode, but cannot start the automatic working mode.

[0023] The security policies corresponding to the shutdown authority specifically include:

[0024] The safety door opens immediately and the fully automatic hot rolling finishing unit is not affected by the shutdown.

[0025] Preferably, when entering the quality inspection area, any permissions of the IC card adopt the following corresponding security policies:

[0026] The safety PCC receives a request to enter the safety door, and requests the main PCC to slow down the operating line of the full-automatic hot rolling finishing mill to the threading speed. After receiving the request, the main PCC decelerates and responds to the safety PCC after the actual speed reaches the threading speed. The safety PCC opens the safety door for operators to enter.

[0027] Preferably, when entering the entry robot unbundling area and the exit robot marking area, any permissions of the IC card adopt the robot area security policy.

[0028] The hot rolling finishing line safety control system and method provided by the present invention have the following beneficial effects:

[0029] 1) The present invention controls the fully automatic hot rolling finishing unit by area, and divides the fully automatic hot rolling finishing unit into several safety areas. When personnel enter different areas, only the safety strategy of the area will be triggered, and other areas will not be affected;

[0030] 2) The present invention implements authority control on the IC card, sets different authorities for personnel in different positions, sets three authorities: full shutdown, half shutdown, and no shutdown, and provides different security strategies for personnel in different positions to enter the security fence area. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structural framework of the safety control system of the hot rolling finishing line of the present invention;

[0032] Figure 2 It is a schematic flow chart of the hot rolling finishing line safety control method of the present invention. DETAILED DESCRIPTION

[0033] In order to better understand the above technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0034] Combination Figure 1 As shown, the present invention provides a hot rolling finishing line safety control system, comprising:

[0035] A safety fence 1 is arranged at the periphery of the full-automatic hot rolling finishing mill 100 and divides the full-automatic hot rolling finishing mill 100 into a plurality of safety areas;

[0036] The safety door 2 has multiple doors, all of which are arranged on the safety fence 1, corresponding to each safety area of ​​the fully automatic hot rolling finishing unit. One safety area can be provided with multiple safety doors 2. When a person enters any safety door 2 of the same safety area, the safety area adopts a unified safety strategy;

[0037] Safety PCC3, establishes data communication with the safety door 2 to control the opening and closing of the safety door 2, and also establishes data communication with the main PCC4 of the fully automatic hot rolling finishing unit;

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

[0039] The safety areas of the fully automatic hot rolling finishing unit include the entrance loading area, the main operation line area, the quality inspection area, the post-discharging unloading area, the entrance robot unloading area, and the exit robot marking area. Among them, the entrance robot unloading area and the exit robot marking area are two separately set 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 contactless IC card. The IC card frequency band detector 5 and the card reader complete the read and write operations through radio waves. The communication frequency between the two is 13.56MHZ. The contactless IC card itself is a passive card. When the reader performs a read and write operation on the card, the signal sent by the reader is composed of two parts: one part is a power signal. After the signal is received by the card, it generates an instantaneous energy with its own L / C to supply the chip to work. The other part is the instruction and data signal, which instructs the chip to complete the reading, modification, storage, etc. of the data, and returns the signal to the reader to complete a read and write operation. The reader is generally composed of a single-chip microcomputer, a dedicated intelligent module and an antenna, and is equipped with a communication interface with a PC, a printer port, an I / O port, etc., so as to be applied to different fields.

[0041] Combination Figure 2 As shown, the present invention also provides a hot rolling finishing line safety control method, using the hot rolling finishing line safety control system of the present invention to perform the following steps:

[0042] S1. A person goes to a certain security area and swipes the access control device on any security door with an IC card;

[0043] S2. After receiving the card swipe request, the security PCC executes the corresponding security policy according to the authority of the IC card;

[0044] S3. The safety door opens and personnel enter a certain safety area.

[0045] The authority of the IC card in the above step S2 includes full shutdown, half shutdown and no shutdown authority.

[0046] The security policies corresponding to the full shutdown authority include:

[0047] Safety PCC3 requests shutdown from main PCC4. After receiving the request, main PCC4 terminates the automatic working mode of the fully automatic hot rolling finishing unit and locks the relevant equipment, and then responds to safety PCC. After receiving the confirmation response from main PCC, safety PCC opens the corresponding safety door to allow personnel to enter. This type of security strategy is mainly authorized to general operators, and this authority is invalid in the main operation line area, that is, the main operation line is in high-speed production, and general operators are prohibited from entering;

[0048] The security policies corresponding to the semi-shutdown authority include:

[0049] The safety PCC requests the main PCC to stop the automatic working mode. After receiving the request, the main PCC ends the automatic working 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, the personnel can manually start the relevant equipment of the fully automatic hot rolling finishing unit, but cannot start the automatic working mode. This type of security policy is mainly authorized to equipment inspection and equipment operation and maintenance personnel;

[0050] The security policies corresponding to the non-stop permissions include:

[0051] The safety door opens immediately and the fully automatic hot rolling finishing unit is not affected by the shutdown. This type of safety strategy is mainly authorized to equipment experts and operation and maintenance experts.

[0052] When entering the quality inspection area, any permissions of the IC card adopt the following corresponding security policies:

[0053] The safety PCC receives the request to enter the safety door and requests the main PCC to slow down the operating line of the fully automatic hot rolling finishing unit to the threading speed. After receiving the request, the main PCC decelerates and responds to the safety PCC after the actual speed reaches the threading speed. The safety PCC opens the safety door for the operating personnel to enter.

[0054] When entering the entrance robot unbundling area and the exit robot marking area, any permissions of the IC card will adopt the robot area security policy.

[0055] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A hot rolling finishing line safety control system, characterized in that: include: A safety fence is provided at the periphery of the fully automatic hot rolling finishing mill and divides the fully automatic hot rolling finishing mill into a plurality of safety areas; A plurality of safety doors are provided on the safety fence, corresponding to each of the safety areas; A safety PCC, which 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 arranged on the security door and establishes data communication with the security PCC.

2. The hot rolling finishing line safety control system according to claim 1, characterized in that: The safety areas of the fully automatic hot rolling finishing unit include an entrance loading area, a main operation line area, a quality inspection area, a post-discharging unloading area, an entrance robot unbundling area, and an exit robot marking area.

3. The hot rolling finishing line safety control system according to claim 2, characterized in that: Each safety area of ​​the fully automatic hot rolling finishing machine group corresponds to a plurality of safety doors.

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

5. A hot rolling finishing line safety control method, characterized in that: The hot rolling finishing line safety control system according to any one of claims 1 to 4 is used to perform the following steps: S1. A person goes to a certain security area with an IC card and swipes the access control device on any security door; S2. After receiving the card swiping request, the secure PCC executes the corresponding security policy according to the authority of the IC card; S3. The safety door is opened and a person enters a certain safety area.

6. The hot rolling finishing line safety control method according to claim 5, characterized in that: The authority of the IC card in step S2 includes full shutdown, half shutdown and no shutdown authority.

7. The hot rolling finishing line safety control method according to claim 6, characterized in that: The security policies corresponding to the full shutdown authority specifically include: The safety PCC requests the main PCC to shut down. After receiving the request, the main PCC terminates the automatic working mode of the fully automatic hot rolling finishing mill and locks related 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 policies corresponding to the semi-shutdown authority specifically include: The safety PCC requests the main PCC to stop the automatic working mode. After receiving the request, the main PCC ends the automatic working mode of the full-automatic hot rolling finishing mill 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, the personnel jog the relevant equipment of the full-automatic hot rolling finishing mill in manual mode, but cannot start the automatic working mode. The security policies corresponding to the shutdown authority specifically include: The safety door opens immediately and the fully automatic hot rolling finishing unit is not affected by the shutdown.

8. The hot rolling finishing line safety control method according to claim 6, characterized in that: When entering the quality inspection area, any permissions of the IC card adopt the following corresponding security policies: The safety PCC receives a request to enter the safety door, and requests the main PCC to slow down the operating line of the full-automatic hot rolling finishing mill to the threading speed. After receiving the request, the main PCC decelerates and responds to the safety PCC after the actual speed reaches the threading speed. The safety PCC opens the safety door for operators to enter.

9. The hot rolling finishing line safety control method according to claim 6, characterized in that: When entering the entry robot unbundling area and the exit robot marking area, any permissions of the IC card adopt the robot area security policy.

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