JPS62249817A - Coil member feed method - Google Patents

Abstract

PURPOSE:To keep a constant interval between coil members, by combining a pair of rotational amount sensors and a coil member sensor in a feeding method of coil members in a heat treatment process for switching a high feed speed and a low feed speed. CONSTITUTION:A signal produced by a rotary encoder C and a sensor 12 are input to a counter for determining a pulse PA to be input to a servo controller 14. A signal produced by another rotary encoder D and another sensor 12 is input to a counter 15 for determining a pulse PB to be input to a servo controller 14 so that an interval of coil members lx is made to l0 for switching a high speed to a low speed. With this arrangement, an interval between coil members is kept constant for increasing softening efficiency.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for feeding coil material, and more particularly, to a method for transporting coil material in which coil material is sent from an inlet cheeple to a front chamber and heated and softened in a heating chamber. It is something.

[Conventional technology]

Conventionally, the methods of feeding coil material are as shown in Figures 1 and 2.
The method shown in the figure is used.

In FIGS. 1 and 2, l is an inlet cheeple, and a trailing coil material B is waiting at the inlet cheeple IK.

The inlet cheeple 1 and the front chamber 2 are provided with n3, the front chamber 21C has a detector 4, and the front chamber 2 is followed by a heating chamber 5.

When the preceding coil material A comes off the detector 4, the front chamber 2
The door 3 is opened, and the following coil material B, which is currently being placed at the entrance cheeple 1, is carried into the front chamber 2.

This conveying speed (arrow VB) is quick and high. When the trailing coil material B reaches the detector 4, the front chamber 2 is closed, and the loading speed changes from high speed (VB) to low speed (arrow V
A) K switch. For example, low speed V person is 100
~2001 EI/minute, quick high speed vB is 1
2000 seagulls/minute.

Therefore, when the low speed is 2001111/min and the spacing between the coils is 405m, the low speed is 100m/min.
If the speed is 11JI/min, the spacing between the coils will be 80fl, and if the diameter of the coils is 1000m, it will be 3.7t.
I'm going to be lbl un.

Also, since the quick speed is as fast as 12,000 cm/min, the spacing is set wide in consideration of slack in the chino and slippage with the roll.

[Problem that the invention seeks to solve]

The present invention aims at increasing the softening efficiency of the coil material by making the interval between the ninth coil materials constant. In other words, two rotation amount detection devices are installed, and the control device (the controller) switches the feed speed from a fast speed to a slow speed, so that the spacing between the coil materials is always kept constant even if the conveyance speed of the coil materials changes. This is what I did.

[Means for solving problems]

The present invention provides two rotation amount detection devices, for example, a rotary encoder and a control device, for example, a thermal material control device and a detector, and conveys the coil material to the heating furnace at regular intervals. This will be explained with reference to Figures 4 and 5.6.

Reference numeral 11 denotes a feed roll, and two of the feed rolls are provided with rotary encoders /C and D for detecting the amount of rotation of the feed roll. A detector 12 is provided between feed rollers 11 and 11 provided with two rotary encoders C and D.

After the leading coil material has missed the detector 12, the rotary encoder C integrates the /# pulse, and this nogle is set as PA, and when the trailing coil material B hits the detector 12, the rotary encoder C integrates /# The nogle pulse is integrated and this pulse is set as PB. The distance between the preceding coil material A and the following coil material B is defined as Ilx, and the sensor inputs this lx to the controller. To set the distance between the leading coil material A and the trailing coil material B to a constant distance RoK, use Rx-j! o
K L must be. That is, ff1x=Pi−P
It is necessary to set B=jO. Therefore, it is necessary to appropriately switch the speed of the feed roll 11 from a high speed to a low speed.

With this, the interval between the coil members can always be maintained at a constant interval jo even if the feeding speed changes.

Further, the feed roll 11 is controlled by a control device such as a sensor. The speed of the rolls can be changed by a controller, and if there is a front chamber before entering the heating chamber, that is, before the heating chamber, the coil material can be conveyed at a constant interval in the front chamber 2. .

A schematic diagram of the present invention will be explained in FIG. 6. Counter 13 transmits signals from rotary encoder C and detector 12
is input to obtain the arm pulse PA, which is input to the controller 14, and on the other hand, the transmission from the rotary encoder D and the detector 12 is input to the counter 15 to obtain the arm pulse PB, and the signal is input to the controller 14. The coil material spacing aX is calculated by inputting it to the controller 14.
ff1oK to quickly switch the high speed to the low speed. In this case, the rapid motor is stopped and the O/R run clutch is used to set the speed to a low speed.

Furthermore, in order to prevent collisions between the coil materials, the desired interval go can be made much shorter by setting the quick and high speed to second speed. For example, if the diameter of the coil material is 10,000, the spacing between the coil materials is 65.
The spacing between the coil members can be changed from 10 m to 10 cm. In this case, the softening efficiency increased by 5.4%.

The second speed can be achieved by frequency control using an in/seater or by an I-route change, which can be done economically.

〔Effect of the invention〕

The present invention makes it possible to keep the distance between the coil materials to a constant value by appropriately changing the conveyance speed RK for conveying the coil materials, which improves the softening efficiency of the coil materials. be.

[Brief explanation of drawings]

Figures 1 and 2 are front explanatory views showing conventional coil material conveyance, Figures 3, 4, and 5 are side views of the coil material feeding of the present invention, and Figure 6 is a schematic diagram of the present invention. FIG.

Claims (1)

[Claims] Two detection devices are provided to detect the rotation amount of the feed roll, and a detector is provided between the rotation amount detection devices, and the first rotation amount detection device generates a pulse immediately after the preceding coil material leaves the detector. The pulses are integrated and this is set as P_A, and when the trailing coil material hits the detector, the second rotation amount detection device integrates the pulses and this is set as P_B, and the interval between the leading coil material and the trailing coil material is determined. A method for feeding coil material, characterized in that l_X is adjusted to an appropriate speed via a control device so as to maintain l_X=P_A-P_B at a constant value.