JPH0442006Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention allows the coil material fed from the uncoiler and sent to the blanking press machine to pass through a coil material feeding roll device such as a pinch roll of a leveler feeder. This invention relates to a threading device.

[Conventional technology]

In the coil material feeding line that extends from the uncoiler that feeds out the coil material to the blanking press machine that blanks and presses this coil material,
Equipment such as a loop controller and a leveler feeder are arranged, and the coil material is supplied to the blanking press machine through these equipment. A loop controller, leveler feeder, etc. is equipped with a roll device for feeding coil material consisting of a pair of upper and lower rolls such as a pinch roll or a feed roll, and the coil material fed between the rolls of this device with its tip is rotated by the rotation of the rolls. Sent to blanking press machine.

[The problem that the idea aims to solve]

In the above, the pair of upper and lower rolls of the coil material feeding roll device are generally able to open and close vertically, and when the tip of the coil material is fed, these rolls open and allow the tip of the coil material to pass through. It's becoming like that. However, if the tip of the coil material is sent to the coil material feeding roll device with the tip curled upward due to curling, even if a coil material guide member such as an apron is provided,
Since the opening amount of the pair of upper and lower rolls is not so large, it may be difficult to insert the tip of the coil material between these rolls.

The purpose of this invention is to provide a coil material threading device that can reliably insert the tip of the coil material between the rolls of the coil material feeding roll device even if the tip of the coil material is curled upward due to curling. It is located in a place that provides.

[Means to solve the problem]

Therefore, the coil material threading device according to the present invention is disposed in a coil material feeding line extending from an uncoiler that feeds out the coil material to a blanking press machine that blanks and presses the coil material, and slides and moves the coil material. A coil material threading device that guides the coil material to a coil material feeding roll device consisting of a pair of upper and lower rolls by pushing up the lower surface of the coil material whose tip is curved upward due to the winding curl, and a lower rocking body that guides the sliding movement of the material, and an upper rocking body that is inclined downward toward the coil material feeding roll device and guides the tip of the coil material to the coil material feeding roll device. It is characterized by having the following features.

[Effect]

When the tip of the coil material reaches the placement position of the threading device of the present invention having the above configuration,
The lower rocking body and the upper rocking body rock upward, and as a result,
The lower surface of the coil material is pushed up by the rocking of the lower rocker, and the tip of the coil material is pressed downward by the upper rocker.In this state, the coil material slides forward while being guided by the lower rocker. At this time, the coil material moves forward while receiving the push-up of the lower surface of the coil material by the lower rocking body and the guiding action of the tip of the coil material by the upper rocking body tilted downward toward the coil material feeding roll device. Therefore, even if the tip of the coil material is sent to the placement position of the threading device in an upwardly warped state due to curling, the tip can be reliably inserted between the rolls of the coil material feeding roll device.

〔Example〕

FIG. 1 is a front view showing the entire coil material feeding line in which a threading device according to an embodiment of the present invention is installed. The coil material 1 is set on the coil material mounting drum 3 of the uncoiler 2, and this drum 3
The coil material 1 fed out from the uncoiler 2 by the rotation of is sent to a blanking press machine 7 through a loop controller 4, a guide table 5, and a leveler feeder 6, and the coil material 1 is processed by blanking press processing by this press machine 7. The punched blank is sent to a transfer press machine (not shown) and pressed.

In the above, the coil material 1 is the leveler feeder 6
By threading the coil material 1 through the coil material 1, the distortion of the coil material 1 is removed by the work roll group inside the leveler feeder 6, and a loop portion is formed in the coil material 1 in the loop controller 4, and this loop portion allows the coil material 1 to be uncoiled from the uncoiler 2. The difference between the continuous feeding of the coil material 1 and the intermittent feeding of the coil material 1 from the leveler feeder 6 corresponding to the vertical movement of the slide of the blanking press machine 7 is absorbed.

As shown in FIG. 2, a substantially L-shaped stopper member 8 with a protrusion 8A formed at the tip is provided near the coil material outlet on the lower side of the loop controller 4. It is attached to the bracket 9 of 4 so as to be able to swing freely around the shaft 10,
The cylinder 11 causes the stopper member 8 to swing up and down. Furthermore, a rail 1 is provided below the stopper member 8.
The rail 12 extends obliquely upward along the guide table 5, and its terminal end is connected to the lower part of the coil material inlet of the leveler feeder 6. A puller 13 for the coil material 1 is arranged on the rail 12, and the puller 13 is movable back and forth along the rail 12.

FIG. 3 shows this puller 13. A snake chain 15 housed in a chain guide 14 is connected to the puller 13. By running the snake chain 15 on a sprocket 17 rotated by a motor 16, the puller 13 is connected to the rail 12. move along. The puller 13 includes a pair of arms 18 and 19 extending horizontally.
8 and 19 are openable and closable, and when closed, the coil material 1 is clamped at the tip.

As shown in FIG. 2, a threading device 2 according to this embodiment is installed at the coil material inlet of the leveler feeder 6
0 is arranged, and the pinch rolls 23 of the leveler feeder 6 are provided on the rear side of this threading device 20. In this embodiment, a pair of upper and lower rolls 2
This pinch roll 23 consisting of 1 and 22 serves as a roll device 24 for feeding coil material. The threading device 20 is an apron member 2 which is a lower swinging body.
5 and a guide member 26 which is an upper rocking body, and these apron member 25 and guide member 26 are connected to each other at the base and are integrated, and the apron member 25 and guide member 26 are connected to each other at the base. is the shaft 2 on the frame of the leveler feeder 6.
It is attached so that it can swing vertically around 7.
A cylinder 28 is connected to the lower surface of the apron member 25, and the cylinder 28 allows the apron member 2
5. The guide member 26 swings up and down about the shaft 27.

Although the lower surface 26A of the guide member 26 is flat,
The first half and the second half of the upper surface of the apron member 25 have an upwardly bulging curved portion 25A and a downwardly depressed concave portion 25.
B, and a roller 29 is rotatably provided on the curved portion 25A. When the apron member 25 and the guide member 26 are swung upward by the cylinder 28, the curved portion 25A of the apron member 25 protrudes above the extension line of the guide table 5, as shown by the two-dot chain line in FIG. , guide member 26
The lower surface 26A is inclined downward toward the pinch roll 23.

Next, the effect will be explained.

The tip 1A of the coil material 1 that has been fed out from the uncoiler 2 and passed through the loop controller 4 is
As shown in the figure, the protrusion 8A of the stopper member 8 that has swung downward is stopped, and at this time the puller 13
A pair of arms 18 and 19 clamp the coil material 1. While this operation is being performed, the apron member 25 and guide member 26 of the threading device 20 are swung downward as shown by solid lines in FIG.

Next, the stopper member 8 is swung upward by the cylinder 11, and after this, the puller 13 is moved along the rail 12 by the snake chain 15, and the coil material 1 is thereby affected by the pulling force of the puller 13 and the loop controller 4. While being guided by the guide table 5 by the rotation of the pinch rolls provided in the guide table 5, it advances obliquely upward toward the leveler feeder 6, resulting in the state shown in FIG. At this time, the tip 1A of the coil material 1 is in an upwardly warped state due to the curl.

Thereafter, the puller 13 is further moved, and the arms 18 and 19 of the puller 13 pass above the curved part 25A of the apron member 25 swinging downward, and the puller 13 is moved to the recess 25B of the apron member 25.
When the position is reached, the cylinder 28 is moved as shown in FIG.
The apron member 25 and guide member 26 are swung upward. As a result, the lower surface of the coil material 1 is pushed up by the curved portion 25A of the apron member 25 provided with the roller 29, and the guide member 2
6. Press the tip 1A of the coil material 1 downward with the lower surface 26A of the coil material 1. At this time, the pinch roll 23
Raise the upper roll 21 of the upper and lower rolls 2
Leave 1 and 22 open.

Thereafter, when the puller 13 is further moved, the coil material 1 slides on the curved portion 25A of the apron member 25 while being prevented from generating friction by the roller 29, and moves forward toward the pinch roll 23. At this time, due to the effect of pushing up the lower surface of the coil material 1 by the curved portion 25A of the apron member 25, the portion of the coil material 1 beyond the curved portion 25A is approximately horizontal at approximately the same height as the lower roll 22 of the pinch roll 23. The coil material 1 moves forward in this state, and the tip 1A of the coil material 1 moves forward toward the pinch roll 23 while being guided by the lower surface 26A of the guide member 26, which is inclined downward. Tip 1A is pinch roll 2 as shown in Figure 6.
3, the rolls 21 and 22 will be reliably inserted.

In this embodiment, since the tip 1A of the coil material 1 before being passed through the leveler feeder 6 is curled upward due to the curl, the rolls 21 and 22 of the pinch roll 23 cannot be opened in that state. Even if the tip 1 is placed between these rolls 21 and 22,
Even if the coil material 1 cannot be inserted, the coil material 1 can be advanced toward the pinch rolls 23 while suppressing the upwardly warped state of the tip 1A, so that the tip 1A can be reliably inserted between the rolls 21 and 22. become.

After the tip 1A of the coil material 1 enters between the rolls 21 and 22, the movement of the puller 13 is stopped, the upper roll 21 is lowered, the coil material 1 is clamped by the pinch roll 23, and the arm 18 of the puller 13 is , 19 is released, and then, by rotating the pinch rolls 23, the coil material 1 is passed through the leveler feeder 6 and sent to the blanking press machine 7. At this time as well, the curved portion 25A of the apron member 25 is
This will guide the sliding movement of the

In the above embodiment, the pinch roll 23 of the leveler feeder 6 was used as a roll device for feeding coil material, but the roll device for feeding coil material is not limited to this. For example, it may be a feed roll, Furthermore, it may be a pinch roll of a loop controller, and if necessary, the coil material feeding roll device consists of a pair of upper and lower rolls, and the tip of the coil material that is curled upward due to the curling Any item may be used as long as it is placed at the position where it is sent. Furthermore, although the puller 13 was used in the above embodiment, the device according to the present invention can also be applied when no puller is used.

[Effect of idea]

According to the present invention, even if the tip of the coil material is curled upward due to curling, the tip can be reliably inserted between the rolls of the coil feeding roll device, and the coil material can be fed in a specified manner. I can go through it.

[Brief explanation of the drawing]

FIG. 1 is a front view showing the whole of a coil material feeding line in which the device according to the embodiment is arranged, and FIG.
3 is a cross-sectional view of FIG. 2, and FIG. 4, FIG. 5 and FIG. 6 are front views showing the operation of the device according to the embodiment in the order of steps. 1... coil material, 1A... tip, 2... uncoiler, 4... loop controller, 5... guide table, 6... straightener feeder, 7... blanking press machine, 13... puller, 18, 19...
...arm, 20...threading device, 23...
...pinch roll, 24...roll device for feeding coil material, 25...apron member which is a lower swinging body, 2
6: Guide member serving as upper rocking body; 28: Cylinder.

Claims (1)

[Scope of utility model registration request] A coil material feeding roll consisting of a pair of upper and lower rolls, which is arranged in a coil material feeding line extending from an uncoiler that feeds out the coil material to a blanking press machine that blanks and presses the coil material, and slides the coil material. A coil material threading device that guides the coil material to the device, which is vertically swingable around a guide table that guides movement of the coil material and a base on the side of the coil material feeding roll device, a lower rocking body which, when rocked upward, projects upwardly from an extension of the guide table, pushes up the lower surface of the coil material whose tip is curved upward due to curling, and guides the sliding movement of the coil material; and is integrally coupled with the lower swinging body at the base on the side of the coil material feeding roll device so that it can swing up and down, and when it swings upward, it moves downward toward the coil material feeding roll device. 1. A coil material threading device comprising an upper swinging body that is inclined and guides the tip of the coil material to the coil material feeding roll device.