JPS59174217A - Rolling equipment - Google Patents

Abstract

PURPOSE:To reduce the necking of a rolling material produced at the time of winding by detecting the front end of the material which is passing through pinch rolls used for sending the material to a coiler from a rolling mill and controlling the speeds of the pinch rolls and the coiler. CONSTITUTION:When a rolling material S delivered from a rolling mill 1 arrives at pinch rolls 2, a detecting device 4 functions and actuates a speed controlling device 5. Then the initial waiting speed of rolls 2 is decreased to the speed near the traveling speed of the material S which is passing through the rolls 2. Simultaneously with said action, the initial waiting speed of a coiler 3 is set and maintained, by the device 5, to be a slightly higher than the speed of rolls 2 after said correction. Further, when the material S arrives at the coiler 3 after passing through the rolls 2, the speeds of the rolls 2 and the coiler 3 begin to decrease from that instant and arrive at the stationary state of the winding of material S, and the material S is wound up at the speed of said stationary state thereafter.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rolling machine, and particularly to a winding machine that reduces necking that occurs when winding a rolled material.

The conventional configuration of a hot rolling device will be explained based on FIG. 1. The rolling IA device has a plurality of rolling rolls (1a), (
A rolling mill (1) equipped with Ib) and (Ac), a pinch roll (2) that holds and sends out the rolled material (θ) sent out from this rolling mill (1), and this pinch roll (2). Winder (3) that receives and winds the rolled material (day) sent from
It consists of

Therefore, the rolled material (θ) rolled by the rolling machine (1) is sent to the pinch rolls (2), where the rolled material (8) is pinched and sent to the next winding machine (3). By the way, in order to perform each operation of rolling 2 and winding smoothly, it is necessary to
(1) and the pinch roll (2), and between the pinch roll (2) and the winder (3), after adjusting the tension applied to the rolled material (θ) appropriately, the rolled material (8) is stabilized. The film is then passed through a pinch roll (2) to smoothly wind it up on a winder (8). In other words, the top 6 hit rolls (2
) and the winding machine (8)'s rotation.
11 Kawanobe ° (e) The running speed is set slightly higher than that of
This controls the tension in the valley section mentioned above. Therefore, when the tip of the rolled material (θ) wraps around the scatterer (3) and the rolled material (6) extends over the entire section from the rolling mill (1) to the winder (8), the rotational speed of these The running speed of the material (8) is almost the same as that of the material (8). FIG. 2 shows this change over time.

As is clear from the figure, the running speed of the rolled material (8), the rotation speed of the pinch roll (2), and the winding machine vary with fixed values, and the rolling material (s) is wrapped around the winder (3), the rotational speed of the pinch roll (2) and the winder (3) begins to decrease, eventually reaching a normal state, and then reaching a certain level. The rolled material (e) is removed at this speed.

However, at the moment when the rolling stitch (θ) wraps around the winder (3), due to the difference in rotational speed between it and the pinch roll (2), the rolled material (8) between the two rolls. An abnormally high tension acts, and this additional tension is transmitted between the rolling mill (1) and the pinch rolls (2), and eventually the tip of the rolled material (8) reaches the winding dredge (3). When the rolled material (
8) is wound onto the winder (3), a high tension of 44% acts across the entire section from the rolling wire ([) to the winder (3), and due to this high tension, The rolled material (8) in these sections was subject to a so-called necking phenomenon, which significantly reduced the degree of corrosion of the rolled material (8).

The present invention has been made in view of the above points, and includes a rolling mill,
In a rolling equipment that is fully equipped with pinch rolls that pinch the rolled material sent out from the rolling mill and convey it to the downstream side, and a winder that takes up the rolled material sent out from the pinch rolls, the pinch rolls are A detector detects the point when the tip of the rolling material passing through passes, and a speed at which the rotational standby speeds of the pinch roll and winder are reduced in accordance with the detection value of this detector corresponding to the running speed of the rolling mill. I installed an existing controller! ++ There is something that looks like mold.

The following description will be given based on the illustrated embodiments, with the same or corresponding parts being designated by the same reference numerals. FIG. 3 shows that a conventional rolling apparatus includes a detection device for detecting the rolled material (8) that has passed through the pinch rolls (2), and a detection device for detecting the rolled material (8) that has passed through the pinch rolls (2), and a separating plate (
A swimming speed control device (5) that manually controls the swimming speed of the swimmer (3) and the fourth self-synthesizing device (4) is attached. In other words, the rolled material (
When θ) reaches the pinch roll (2), the detection device (4) is activated, and this activates the speed control device tt51'.
Activate the initial rotation standby operation 1 of the pinch roll (2).
The rotating speed can be decreased to a speed close to the traveling speed of the rolled material (B) passing through the pinch rolls (2) (see Fig. 4). Simultaneously with this operation, the speed control device (5) also sets and maintains the initial rotational standby speed of the winder (3) slightly higher than the corrected rotational speed of the pinch roll (2) (fourth (see figure). Further, when the rolled material (8) passes through the pinch rolls (2) and reaches the winder (3),
From that moment on, the pinch roll (2) and the winder (3)
The rotational speed of ) begins to decrease and reaches a steady state of rolling the rolled material (8), after which the rolling material (8) is wound at that speed.

That is, according to the above embodiment, the rolled material (8) is
Waiting for the rotation of the winding machine (8) until the moment when the winder (8) reaches the position 1
By the 1'F movement of the speed control device (5), the speed wave has already been adjusted to a high speed wave close to the running speed of the rolling machine (8), and at the moment of winding, it is connected to the pinch roll (2). 1
The high tension acting between the rolls (3) is greatly relieved, and since the rotational speed of the pinch rolls (2) is close enough to almost match the running speed of the rolled material (e), the high tension Since the tension can be kept within the interval between the vinyl roll (2) and Toshiro Toshiro (3), the necking phenomenon of the rolled material (B) can be concentrated within this interval. Therefore, it is possible to suppress the reduction in the width dimension accuracy of the rolled material (6) to a short section between the pinch roll (2) and the winder (81).

The detection device (4) may be, for example, an accelerometer that detects changes in acceleration, or a current meter that detects changes in the current of the motor for driving the pinch roll (2) itself. It is. In addition, the entire passage of the rolled material (6) is detected between the rolling mill (1) and the pinch roll (2), and the tip position of the rolled material (8) is then tracked and the position immediately below the pinch roll (2) is detected. It is also possible to use a passing sensor (HMD, OMD, etc.) that detects the passing meeting.And, as for the rotation wait 1 speed J and total 15 stop timing between the pinch roll (2) and Ichitori JH (81), the rolling The moment when the material (S) reaches the base end or just below the pinch roll (2), the passage sensor (2) may be installed on the right side. is clear.

According to the present invention, the rolling device is a rolling machine, a pinch roll that pinches the rolled material sent out from the rolling machine and conveys it to the lower side, and a roll that winds up the entire rolled material sent out from the pinch roll. In a rolling apparatus equipped with a winding machine, there is a detector that detects every time the tip of the rolled material passes through the pinch rolls, and the rotational speed and t of the pinch rolls and winding machine are determined based on the detection values of this detector. A movement control device was installed to reduce the tension in accordance with the running speed of the rolled material, and by controlling the winding of the rolled chestnut with the 1'F-tai of these two ministries, the rolling material was reduced. It has the effect of improving board width dimensions, etc. by +11 steps.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing the configuration of a conventional rolling mill, Fig. 2 is a graph showing custom-ordered winding of rolled material according to the rolling schedule in Fig. 1, and Fig. 6 is an example of the result of the present invention. FIG. 4 is a schematic diagram similar to FIG. 1, and FIG. 4 is a graph showing the winding characteristics of the rolling mill M in FIG. 3, similar to FIG. (1) War/Rolling↑笈 (2)/ΦVinch roll (
3)...Makitorigi (4)...1 disaster relief device (5)...
Speed controller (S)...Rolled material agent Iro Kuzuno - 1st r; a 2nd figure 3rd figure 1a ib 1c figure 4 - AA fermentation training - 4 pieces 4 boxes - Procedural amendment (voluntary) Patent Office Mr. Secretary, 1. Indication of the incident, Patent Application No. 58-50872, 2.
Name of the invention: Rolling machine 3; To the representative of the person making the amendment: Hitoshi Katayama; +Tbe 5: Detailed description of the invention in the specification to be amended. 6. Contents of the amendment (1) From page 4, line 18 to page 5, line 3 of the specification, ``Figure 3 shows that the conventional rolling mill has...speed control device (5)
is attached. In other words, the statement "in other words" is amended as follows. [Figure 3 shows a conventional rolling equipment equipped with a detector (
4), and a speed control device (5) which receives the detection operation of the rolled material (S) by the detector (4) and appropriately controls each rotational standby speed of the pinch roll (2) and the winder (3). The apparatus of this embodiment is constructed by newly attaching the following. (2) The statement "as the above-mentioned detection device (4)" on page 6, line 12 of the specification is amended to "as the above-mentioned detector (4)."

Claims (1)

[Claims] (1) In a rolling device equipped with a rolling mill, pinch rolls that pinch the rolled material sent out from the rolling mill and convey it to the downstream side, and a winder that sweeps the rolled material sent out from the pinch rolls. , a detector for detecting the point in time when the tip of the rolling mill passes through the pinch roll, and a detection value of this detector to make the rotation standby speed and reversal of the pinch roll and winding machine correspond to the running speed of the rolling mill. A rolling apparatus 0 (2) characterized in that a speed controller is provided to reduce and adjust the rotational speed of the pinch roll to be gradually adjusted to the running speed of the rolled material based on the detection value of the detector, and The rolling apparatus according to item 1 of the scope of the patent, characterized in that it is equipped with a speed controller that adjusts the rotational speed of the rolling machine to be slightly higher than the rotational speed of the pinch roll.