JPS6252649B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for automatically and quickly guiding coil material to a press machine in a coil feeder line that feeds the coil material to the press machine.

Conventionally, the work of guiding the tip of the coil material to the press machine, or the work of processing the end of the coil material upon completion of press processing, was often performed by the operator's visual inspection, and it was difficult for the operator to be skilled. was required, and the work could not be done quickly. The present invention has been made to solve this problem, and will be described below based on the drawings, which are one embodiment of the present invention.

1 to 4, the coil feeder line that feeds the coil material to the press machine 34 includes an uncoiler 31 for holding the inner diameter of the coil material 32 and loosening the coil material 32, and an uncoiler 31 for cutting the coil material. A coil cutter 1 for straightening the coil material and feeding it at a constant speed, a loop control device 33 for adjusting the flow of the coil material, and a coil cutter 1 for feeding the coil material at a constant pitch to the press machine. It is composed of a feeder 10.

The leveler 2 is provided with a work roll 16 for straightening the coil material and pinch rolls 15a and 15b for feeding the coil material. The upper roll group of the work roll 16 and the upper rolls of the pinch rolls 15a and 15b are provided to be movable up and down. A side guide 12a for regulating the side surface of the coil material is provided on the entrance side of the leveler 2, and a member (side guide roll) for regulating the side surface of the coil material of the side guide is operated by a side guide roll opening/closing electric motor 13a. It is movable in the width direction of the material. The side guide roll opening/closing electric motor 13a is provided near the side guide roll, and is controlled by a signal from a side guide roll opening/closing detection phototube 20a for detecting the side end of the coil material. Between the pinch roll 15a and the work roll 16, there is a coil material that detects the tip of the coil material, activates the side guide roll opening/closing electric motor 13a, and sends a signal that causes the side guide roll to regulate the coil material. Tip detection phototube 2
1 is provided. Between the work roll 16 and the pinch roll 15b, there is a signal for detecting the end of the coil material and releasing the pinch rolls 15a, 15b and the work roll 16, and a signal for raising the loop table 5, which will be described later. A coil material end detection phototube 22 is provided for producing a signal. On the exit side of the leveler 2, a high-speed threading phototube 23 is provided that detects the tip of the coil material and outputs a signal to switch the pinch rolls 15a, 15b and the work roll 16 to high-speed operation.

The loop control device 33 is provided with phototubes 24a, 24b, 24c, and 24d for detecting the loop of the roll material and the loop table 5. The loop table 5 is guided by a guide member 36 erected in the loop pit portion 35, and is moved up and down by a loop table lifting motor 7. The guide member 36 is provided with a loop table lower limit detection limit switch 25, a loop table intermediate detection limit switch 26, and a loop table upper limit detection limit switch 27 for detecting the position of the loop table 5. These limit switches output a signal to control the loop table lifting motor 7, and also output a signal to control the loop table intermediate detection limit switch 2.
6 has the role of issuing a release signal to the pinch roll 15b. In loop table 5,
Rollers 6 are provided to assist the passage of the coil material. At the end of the loop table 5 on the exit side,
Threading deceleration phototube 28 for detecting the tip of the coil material and sending a deceleration signal to the leveler 2
is provided. Threading deceleration phototube 28 and threading high speed phototube 23
is for controlling the speed at which the coil material passes over the loop table 5.

The feeder 10 includes a feed roll 18 for feeding the coil material at a constant pitch, a backstop roll 17 for preventing the coil material from flowing backward, and a rotation angle of the feed roll 18 by detecting the feeding length of the coil material. It is composed of a measuring roll 19 that controls. feeder 1
Similarly to the leveler 2, a side guide 12c and a side guide roll opening/closing electric motor 1 are installed on the entrance side of the roller 0.
3c and a detection phototube 20c for opening and closing the side guide rolls. A material tip detection phototube 29 is provided on the exit side of the side guide 12c of the feeder 10 for detecting the tip of the coil material and outputting a signal for stopping the leveler 2. After the leveler 2 is stopped by the signal from the phototube 29, the side guide roll of the side guide 12c is moved by the side guide roll opening/closing electric motor 13c to regulate the side surface of the coil material. On the exit side of the feeder 10, a material end stop phototube 30 is provided that detects the end of the coil material and outputs a signal for clamping the backstop roll 17, feed roll 18, and measuring roll 19. A material guide table 11 for guiding the coil material is provided between the feeder 10 and the press machine 34.
is provided.

Between the leveler 2 and the loop control device 33, the feeder 10 and the loop control device 33
Aprons 3 and 9 for receiving and guiding the coil material are provided between them. Apron 3,
Reference numeral 9 is composed of movable links 4a and 4b which are formed by bendably connecting a plurality of divided pieces. One end of this movable link is attached to the leveler 2 and feeder 10 sides, respectively, and the other end becomes a free end and is received by the loop table 5. When the loop table 5 rises to the upper limit, it becomes a straight line. It has a structure. In addition, these movable links 4a, 4b
are disclosed by the same applicant.
(Utility Application No. 54-156572) The movable links 4a and 4b are provided with guide rolls 14 for assisting the passage of the coil material. A guide bar 8 for guiding the coil material is provided at the tip of the movable link 4b. On the entrance side of the apron 9, similarly to the entrance of the leveler 2, a side guide 12b, a side guide roll opening/closing electric motor 13b, and a side guide roll opening/closing detection phototube 20b are provided. The side guide roll opening/closing electric motor 13b is connected to the loop table lower limit detection limit switch 25.
It is activated by a signal from the coil end detection phototube 22, and acts in the direction in which the side guide closes and in the direction in which the side guide opens, respectively.

The effect will be explained below.

(a) When supplying new coil material.

When the coil material loosened by the uncoiler 31 is fed out by the uncoiler and the tip of the coil material is detected by the coil tip detection phototube 21,
In response to the signal, the uncoiler 31 is stopped, and the side guide roll opening/closing motor 13a is driven, so that both ends of the coil material are regulated. after that,
The pinch roll 15a and the work roll 16 become a clamp, the leveler is activated, the coil material is fed, and when the tip of the coil material is detected by the high-speed threading phototube 23, the leveler 2 is activated by the signal.
becomes high speed, and the coil material passes over the loop table 5 at high speed. In this case, the loop table 5 has been raised since the end of the previous operation. When the tip of the coil material is detected by the threading deceleration phototube 28, the leveler 2 is decelerated by the signal, and thereafter the coil material is fed at a low speed.
When the tip of the coil material is detected by the material tip detection phototube 29, the leveler 2 stops, and while the forward movement of the coil material is stopped, the side guide roll opening/closing electric motor 13c starts, and the side guide 12c moves the coil material forward. Regulate both sides. Leveler 2 starts up again,
The coil material advances, and when the tip of the coil material is detected by the material tip stop phototube 30, the leveler 2 is stopped by that signal, and the backstop roll 17, feed roll 18, and measuring roll are stopped with the coil material stopped. 19 is a clamp. Next, the leveler 2 is activated and feeds the coil material, and the loop table 5 is lowered by the loop table lifting motor 7 following the loop of the coil material, and is detected by the loop table lower limit detection limit switch 25. descend until the The side guide roll opening/closing electric motor 13b is activated by a signal from the limit switch 25, and the side guide 12b regulates both sides of the coil material, and the leveler 2 is stopped. The movable links 4a and 4b are connected to the loop table 5.
As the loop table 5 descends, its free end portion descends, and when the loop table 5 is at its lower limit, it forms an apron for guiding the coil material. Press operation is possible in this state.

(b) When pressing work is finished.

To end the pressing operation, the coil material is cut with the coil cutter 1, and when the end of the coil material is detected by the coil material end detection phototube 22, the side guide roll opening/closing electric motor 13a,
13b starts, the side guides 12a and 12b release the coil material, the leveler 2 stops, the loop table lifting motor 7 starts, and the loop table 5
rises following the loop of the coil material. That is, the loop of coil material connects the phototubes 24a and 24b.
When it comes between the loop table 5 and the photocell 2
It rises to the height of 4a. Similarly, when the loop rises and comes between phototubes 24b and 24c, between phototubes 24c and 24d, or above phototube 24d, the corresponding , the loop table 5 has a phototube 24b,
It rises to the positions 24c and 24d.

When the loop table 5 is detected by the loop table intermediate detection limit switch 26, the loop table 5 is stopped by that signal, the coil material is still fed by the feeder 10, and the end of the coil material is detected by the coil material end detection. When detected by the phototube 23, the pinch rolls 15a, 15b and the work roll 16 are released, and the loop table 5 starts to rise, rising to its upper limit while pushing up one end of the movable links 4a, 4b.

The coil material passes over the loop table 5, and when its end reaches the material tip detection phototube 29, the side guide 12c opens and expands, and the backstop roll 17, feed roll 18, and measuring roll 19 are released.

Since the present invention has the above-described configuration, the coil material can be fed automatically and quickly, which significantly increases the efficiency of use of the press in practice, and makes handling by the operator extremely easy. The effects and benefits are significant.

[Brief explanation of the drawing]

FIG. 1 is a top view and front view showing the overall arrangement, FIG. 2 is a leveler, FIG. 3 is a loop control device and apron, and FIG. 4 is a top view and front view of a feeder, respectively. 1 is a coil cutter, 2 is a leveler, 3 is an apron, 4a, 4b are movable links, 5 is a loop table, 6 is a roller, 7 is an electric motor for raising and lowering the loop table, 8 is a guide bar, 9 is an apron, 10 is a feeder, 11 is material guide table, 12a, 12
b, 12c are side guides, 13a, 13b, 1
3c is a motor for opening and closing side guide rolls, 14 is a guide roll, 15a and 15b are pinch rolls,
16 is a work roll, 17 is a backstop roll, 18 is a feed roll, 19 is a measuring roll, 20a, 20b, 20c are side guide roll opening/closing detection phototubes, 21 is a coil tip detection phototube, 22 is a coil end detection phototube, 23 24 is a phototube for high-speed threading, 24 is a phototube for detecting loop control and loop table elevation, 25
is the loop table lower limit detection limit switch, 2
6 is a loop table intermediate detection limit switch;
27 is a loop table upper limit detection limit switch, 28 is a phototube for threading deceleration, 29 is a material tip detection phototube, 30 is a material tip stop phototube, 31 is an uncoiler, 32 is a coil material, 33 is a loop control device, 34 is a press machine, 3
5 is a pit, and 36 is a guide member.

Claims (1)

[Claims] 1. In a coil feeder line that feeds coil material to a press that is equipped with a leveler, a loop control device, and a feeder in series, there are An apron is provided for guiding the coil material, a detector is provided near the apron on the entrance side to detect the tip of the coil material and output a signal to switch the leveler at high speed, and a detector is provided near the apron on the exit side to detect the tip of the coil material and output a signal to switch the leveler at high speed. 1. A coil material threading device comprising a detector that detects the tip of the coil material and outputs a signal to switch the leveler to a low speed.