JPH0729143B2 - Coil material feeding device - Google Patents

Description

The present invention relates to a device for feeding a coil material to a press machine or the like.

[Prior Art] Conventionally, when supplying a coil material to a press machine or the like, in order to remove an uncoiler (a coil material supporting device) that rotatably supports the coil material and a winding tendency of the coil material that is unwound from the uncoiler. Leveler (straightening device) and a loop space that relaxes the coil material in a curved shape in order to control the delivery of the unwound coil material are arranged in a plane in the order of the delivery direction of the coil material. There were many This arrangement has the disadvantage of increasing the overall installation area.

Then, as a plan to solve this problem,
The coil material feeding device disclosed in Japanese Patent No. 614 has been developed. In this device, the leveler is installed above the uncoiler, and the coil material that has passed through the leveler is fed vertically upward, so that the coil material fed upward does not bend again while being directed downward. An arc-shaped coil guide for conversion is installed above the leveler, and below the coil guide, a dancer arm having a function of controlling the feeding of the coil material is provided. That is, the installation area is reduced by arranging the devices three-dimensionally.

[Problems to be Solved by the Invention] However, in the case of the coil material feeding device disclosed in Japanese Utility Model Publication No. 53-34614, since the uncoiler, the leveler, and the coil guide are arranged in a vertical line, the total height of the device is small. There was a problem that it became too high to be installed on the floor of an indoor factory with a low ceiling.

Also, since the coil guide is provided with the upper side protruding upward, it is necessary to provide a fall prevention device so that the coil material does not fall naturally, which complicates the structure of the coil material feeding device and the operation control. There was also a problem.

The present invention has been made in view of the above-mentioned problems of the conventional technique, and an object thereof is to reduce the installation area and the overall height of the device, which has a simple structure. There is an attempt to provide a coil material feeding device.

[Means for Solving the Problems] The present invention has been made to achieve the above object,
The gist thereof is that a coil material supporting device that rotatably supports a coil material, a straightening device that removes the winding tendency of the coil material that is unraveled from the coil material supporting device, and a delivery of the unraveled coil material are controlled. In order to do so, the coil material is provided with a loop space that relaxes the coil material in a curved shape, and a feeding device that is disposed on the opposite side of the straightening processing device with the loop space sandwiched between and that feeds the coil material that has passed through the loop space. In the apparatus, the straightening device is installed near the side of the coil material supporting device so as to send out the coil material passing through the coil material substantially vertically downward, and between the coil material supporting device and the straightening device. A guide mechanism is provided for guiding the coil material from the coil material supporting device to the correction processing device, and the loop space is provided below the coil material supporting device and the correction processing device. Between the straightening device and the feeding device, a guide member that is concavely curved downward is located on the upper side of the loop space to guide the coil material sent from the straightening device along the concave curved surface. The coil material feeding device is provided so as to be displaceable between a guide position for guiding to the feeding device and a standby position where the coil material enters the loop space and is separated from the coil material.

[Operation] By arranging the coil material supporting device, the straightening device, and the loop space as described above, it is possible to reduce the installation area and simultaneously reduce the overall height of the device. Further, since the guide mechanism is provided between the coil material supporting device and the correction processing device, the coil material can be fed into the correction processing device extremely smoothly even if each device is arranged as described above. Further, when the coil material is unwound, the guide member is displaced to the guide position. Then, the leading end of the coil material fed downward from the straightening device is guided to the feeding device along the concave curved surface of the guide member without hanging down in the loop space. After the feeding device starts feeding the coil, the guide member is displaced to the standby position. In this state,
The guide member does not contact the coil material, and the coil material relaxes in a curved shape in the loop space.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings from FIG. 1 to FIG.

FIG. 1 is a front view of the coil material feeding device, FIG. 2 is a plan view of the same, and FIG. 3 is a right side view of the same. In this coil material feeding device, an uncoiler (coil material supporting device) 2 that rotatably supports the coil material 1 is installed on a concrete floor (foundation) 100 of an indoor factory. A mounting base 3 is installed near the side of the uncoiler 2, and a leveler (correction processing device) 4 is fixed to the mounting base 3. The leveler 4 has a driving roller 4a and a large number of driven rollers 4b arranged vertically with the axis centered in the horizontal direction. The coil material 1 unwound from the uncoiler 2 is driven by the driving rollers 4a, 4a of the leveler 4. It is conveyed downward in the vertical direction through the space and between the driven rollers 4b, 4b, and the curl of the coil material 1 is removed during that time. The drive roller 4a is driven by the motor 5 via a chain sprocket (not shown).

In addition, the coil material 1 is attached to the mounting base 3 by the uncoiler 2
A guide mechanism is provided to guide the vehicle to the leveler 4. The guide mechanism is a magnetic conveyor unit 6 for mechanically pulling out the coil material 1 mounted on the uncoiler 2 in a direction approaching the leveler 4 during the start-up operation of the coil material feeding device, and is pulled out by the magnetic conveyor unit 6. A guide roller unit 7 for guiding the coiled material 1 to the leveler 4 and a pressing roller unit 8 for sandwiching the drawn out coil material 1 with the guide roller unit 7.

The magnetic conveyor unit 6 is shown in FIG.
Explaining with reference to FIG. 5, a shaft 9 is rotatably supported on the mounting base 3, and a conveyor frame 10 is fixed to the shaft 9. In addition, a pneumatic actuator is attached to the bracket 3a provided on one side of the mounting base 3.
11 is rotatably supported, and this actuator 11
The tip end of the conveyor frame 10 is rotatably connected to one end of the conveyor frame 10, and the conveyor frame 10 swings around the shaft 9 by the expansion and contraction of the actuator 11. A drive roller 12 and a driven roller 13 are rotatably supported on the conveyor frame 10. Drive roller 12
Is the conveyor frame through the chain sprocket 14
It is connected to a motor 15 installed on top of 10. A belt 16 is stretched over the driving roller 12 and the driven roller 13. Further, in the conveyor frame 10, a plurality of elongated plate-shaped magnets 17 are fixed along the traveling direction of the belt 16 at a portion inside the belt 16 traveling below. Belt of magnetic conveyor unit 6
When 16 is brought into contact with the coil material 1 to run, the coil material 1
The magnet 17 is pulled by the magnet 17 in the traveling direction of the belt 16.

Next, the guide roller unit 7 and the pressing roller unit 8 will be described with reference to FIG. The guide roller unit 7 is arranged such that a plurality of guide rollers 18 having their axes centered in the horizontal direction are inscribed in one arc as shown in FIG. 6 and are rotatably attached to the support plates 19, 19 on both sides. Has been. Both support plates 19 are fixed at predetermined positions on the mounting base 3.

A shaft 20 is rotatably supported via bearing stands 3d fixed to brackets 3b provided on both sides of the mounting base 3, and a swing arm 21 is fixed to the shaft 20. A pneumatic actuator 22 is rotatably supported on another bracket 3c provided on one side of the mounting base 3. Then, the actuator 22
The tip of the swing arm 21 is rotatably connected to one end of the swing arm 21, and the swing arm 21 swings around the shaft 20 when the actuator 22 expands and contracts. A pressing roller 23 is rotatably supported on the swing arm 21. The coil material 1 is held by one of the guide rollers 18 of the guide roller unit 7 and the pressing roller 23.

In the foundation 100, a pit 24 is formed below the uncoiler 2, the leveler 4 and the mounting base 3. Inside the pit 24, there is formed a loop space 25 for relaxing the coil material 1 in a curved shape so that the coil material 1 unwound from the uncoiler 2 is not bent again. Position detection sensors 26a to 26d for controlling the feeding of the coil material 1 to a press machine (not shown) are attached to the side wall of the pit 24 and the mounting base 3. That is, the loop space 25 also serves as a space for controlling the feeding of the coil material 1.

A roll feeder (feeding device) 27 for conveying the coil material 1 to the press machine is installed at a position facing the mounting base 3 across the pit 24.

A loop guide (guide member) 28, which is concavely curved downward in an arc shape, is rotatably supported on the lower portion of the mounting base 3. A plurality of rollers 28a are rotatably supported by the loop guide 28. The loop guide 28 is positioned at the upper side of the loop space 25 (guide position) as shown by an imaginary line in FIG. 1 at the start-up operation of the coil material feeding device, that is, at the beginning of unwinding of the coil material 1. The tip end portion of the coil material 1 that is pivotally displaced to be fed downward from the leveler 4 is guided to the roll feeder 27 along the concave curved surface without hanging down in the loop space 25. On the other hand, during a normal operation in which the roll feeder 27 feeds the coil material 1, as shown by the solid line in FIG. 1, the roll feeder 27 enters the loop space 25 and is located at a position (standby position) along the sidewall of the pit 24. Rotate. At this position, the loop guide 28 separates from the coil material 1 without contacting it.

Reference numeral 30 in the drawing denotes a coil car for transferring the coil material 1, and the coil car 30 moves along a rail 31 spanning the pit 24.

Next, a procedure for feeding the coil material 1 by the coil material feeding device having the above configuration will be briefly described.

Before starting the operation of the coil material feeding device, both the pneumatic actuator 11 of the magnetic conveyor unit 6 and the actuator 22 of the pressing roller unit 8 are in the contracted state, and the loop guide 28 is in the raised state. It is located as shown by the chain double-dashed line in FIG.

First, the coil material 1 is attached to the uncoiler 2, and the band (not shown) that bound the coil material 1 is cut. Then, the pneumatic actuator 11 of the magnetic conveyor unit 6 is operated to extend the belt 16, and the belt 16 is pressed against the starting end portion of the coil material 1. Then, the motor 15 is driven to rotate the belt 16 counterclockwise in FIG. Then, as described above, the coil material 1 is pulled toward the guide roller unit 7 while being attracted to the magnet 17. That is, the coil material 1 rotates clockwise in FIG.

The starting end of the coil material 1 is guided by the belt 16 onto the guide roller 18 of the guide roller unit 7, guided by the guide roller 18, and smoothly inserted between the upper drive rollers 4a, 4a of the leveler 4. .

After that, the pneumatic actuator 22 of the pressing roller unit 8 operates and extends, and the pressing roller 23 descends, and the coil material 1 is sandwiched between the coil material 1 and the guide roller 18. After the coil material 1 is sandwiched, the actuator 11 contracts, the magnetic conveyor unit 6 moves upward, and the belt 16 separates from the coil material 1.

Then, the coil material 1 is pulled by the drive roller 4a of the leveler 4.

The coil material 1 from which the curl is removed by the leveler 4 extends downward in the vertical direction and is then bridged over the guide portion 27a of the roll feeder 27 while drawing a curve along the loop guide 28. After it is confirmed that the roll feeder 27 is firmly held, the loop guide 28 descends.

After that, the coil material 1 is continuously fed from the leveler 4, the operation speed of the leveler 4 is controlled by the sensors 26a to 26d, and the feed operation of the roll feeder 27 is performed according to the operating state of the press machine. Are controlled. The sensor 26a is for a lower limit alarm, and the sensor 26d is for an upper limit alarm.

According to the coil material feeding device, the uncoiler 2,
Since the leveler 4 and the loop space 25 are arranged as described above, the installation area can be small, the overall height of the device can be reduced, and the device can be installed in a factory building with a low ceiling. Particularly, in this embodiment, the ground clearance of the uncoiler 2 is set to be low and the loop space 25
Is provided in the pit 24, the height protruding above the floor 100 of the factory can be made lower. Moreover, since the uncoiler 2 is installed on the floor 100, the operability is good.

Further, since the loop guide 28 is installed between the leveler 4 and the roll feed 27, at the beginning of unraveling the coil material 1,
The tip end of the coil material 1 sent downward from the leveler 4 does not hang down in the loop space 25 but roll-feeds.
Can be sent to 27. Moreover, the loop guide 28
Is rotated to the standby position during normal operation and does not come into contact with the coil material 1.
The curvilinear relaxation within 25 is not hindered by loop guide 28.

The present invention is not limited to the above-mentioned embodiment and various modes can be adopted.

It goes without saying that the design can be appropriately changed, for example, by replacing the guide roller 18 with another means and guiding the coil material 1.

Also, the pit 24 is not always necessary.

[Effects of the Invention] As described above, according to the present invention, it is possible to reduce the installation area and at the same time reduce the overall height of the device with a simple structure. Further, since the guide mechanism is provided between the coil material supporting device and the correction processing device, the coil material can be fed into the correction processing device extremely smoothly. Furthermore,
Since the guide member that can be displaced between the guide position and the standby position is provided between the straightening device and the feeding device, the feeding device does not hang down the tip end of the coil material into the loop space at the beginning of unwinding the coil material. There is an excellent effect that the guide member does not hinder the coil material from curving in the loop space during the normal operation.

[Brief description of drawings]

1 to 6 show an embodiment of the present invention. FIG. 1 is a front view of a coil material feeding device, FIG. 2 is the same plan view, and FIG. 3 is the same right side surface. Fig. 4, Fig. 4 is a rear view of the magnetic conveyor unit viewed from the direction of arrow A in Fig. 3, Fig. 5 is a side view of the magnetic conveyor unit viewed from the direction of arrow B of Fig. 1, and Fig. 6 is a third view. It is a rear view of the guide roller unit and the press roller unit seen from the arrow A direction in the figure. 1 ... Coil material, 2 ... Uncoiler (coil material support device), 4 ... Leveler (correction processing device), 6 ... Magnetic conveyor unit (guide mechanism), 7 ... Guide roller unit (guide mechanism), 8 ... Pressing roller unit (guide mechanism), 25 ... loop space 27 ... roll feed (feed device) 28 ... loop guide (guide member)

Claims (1)

[Claims] 1. A coil material supporting device for rotatably supporting a coil material, a straightening device for removing the curl of the coil material unwound from the coil material supporting device, and a feeding device for unwound coil material. A coil material provided with a loop space that relaxes the coil material in a curved shape for controlling, and a feeding device that is disposed on the opposite side of the correction processing device with the loop space sandwiched therebetween and that sends out the coil material that has passed through the loop space. In the feeding device, the correction processing device is installed in the vicinity of the side portion of the coil material support device so as to send out the coil material passing through the inside thereof in a substantially straight downward direction, and between the coil material support device and the correction processing device. Is provided with a guide mechanism for guiding the coil material from the coil material supporting device to the correction processing device, and the loop space is provided below the coil material supporting device and the correction processing device. Between the straightening device and the feeding device, a guide member that is concavely curved downward is located on the upper side of the loop space to guide the coil material sent from the straightening device along the concave curved surface. And a guide position for guiding to the feeding device and a standby position where the coil material enters into the loop space and is separated from the coil material, the coil material feeding device is characterized by being displaceable.