A method for controlling side pressure of continuous large side press
A control method and side press technology, applied in the direction of metal rolling stands, metal rolling mill stands, etc., can solve the problems of uneven force on modules, inconsistent adjustment of roll gaps on both sides, damage to the mechanical structure of side presses, etc.
Active Publication Date: 2018-06-01
BAOSHAN IRON & STEEL CO LTD
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Problems solved by technology
[0003] At present, the side presses mainly used are mainly divided into two types: continuous type and stop-and-go type. During the rolling process, each mechanism module will produce reciprocating motion in the vertical direction of the slab running. A lateral pressing cycle, in this cycle, the various mechanisms (pinch rollers, roller tables, module conveying mechanisms, etc.) Otherwise, uneven force on the module, inconsistent adjustment of the roll gap on both sides, or friction of the slab against the module during transportation will easily occur, resulting in product quality problems such as damage to the edge of the slab, abnormal width of the finished product, and even lead to mechanical failure of the side press machine. Occurrence of failures such as structural damage
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Embodiment 1
[0106] figure 1Among them, the large side press is mainly composed of entrance roller table 2, entrance side guide plate 3, entrance upper and lower pinch roller pair 7, entrance and exit upper and lower pinch roller pair 6, side pressing module 5, and exit upper and lower pinch roller 8. The exit roller table 9, the module conveying mechanism 10 and other equipment / mechanisms are used to control the width and width precision of the slab.
[0107] During the whole rolling cycle, the slab enters along the entrance roller table. After the heat detector HMD301 detects the slab, the roller table stops, and the side guide plate centers the slab and waits for the signal of the large side press to achieve synchronization; at the entrance At the lower pinch roller, the upper pinch roller at the entrance descends and presses onto the slab. When the slab enters the first shot position of the side pressing module, the upper pinch roller descends and presses onto the slab, and the sides o...
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A sizing control method for a large-sized continuous sizing press comprises the following steps: (1) control of a first-sizing position; (2) establishment of a relationship between the position and angle of a sizing mechanism crank; (3) determination of the position of a module conveying mechanism crank; and (4) synchronous control of the sizing mechanism crank, the module conveying mechanism crank, roller ways and pinch rolls, wherein when a plate blank enters the large-sized continuous sizing press to be sized, the large-sized continuous sizing press shifts to a sizing state, and the sizing working state includes three stages, namely a synchronization establishment stage, a synchronization maintaining stage and an out-of-synchronization standby stage. According to the sizing control method for the large-sized continuous sizing press, provided by the invention, during the whole rolling cycle process of the sizing press, the purpose of accurate width control is realized through the synchronization establishment stage, the synchronization maintaining stage and the out-of-synchronization standby stage among the sizing mechanism crank, the module conveying mechanism crank, the roller ways and the pinch rolls.
Description
technical field [0001] The present invention relates to the field of metallurgical industry. Specifically, the present invention relates to a control method for rough-rolled hot-rolled plate shape adjustment using a synchronous side press in a hot rolling mill. Control Method. Background technique [0002] As a main equipment for width adjustment and a new width adjustment technology, side press has been widely used in hot rolling process. [0003] At present, the side presses mainly used are mainly divided into two types: continuous type and stop-and-go type. During the rolling process, each mechanism module will produce reciprocating motion in the vertical direction of the slab running. A lateral pressing cycle, in this cycle, the various mechanisms (pinch rollers, roller tables, module conveying mechanisms, etc.) Otherwise, uneven force on the module, inconsistent adjustment of the roll gap on both sides, or friction of the slab against the module during transportation ...
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IPC IPC(8): B21B37/22
Inventor 张仁其李景洋杜江舰
Owner BAOSHAN IRON & STEEL CO LTD