JPH09108735A - Automatic plate feeding device of coil stock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically feed a coil stock to the succeeding process by providing a loop guide forming a rockable free end and a coil stock guiding arm having a sledging roll and forming a rocking free end. SOLUTION: The coil stock C is drawn out and uncoiled by driving a motor 2b for an uncoiler 2 and a motor 8 for a coil pressing roll 7 respectively. The tip end of the coil stock is supported with the free end side of a loop guide 14. Respective motors 2b and 8 are decelerated when the tip end of the coil stock shields the beam of a first photoelecteic switch 23. Respective motors 2b and 8 are stopped when the tip end of the coil stock shields the beam of a second photoelectric switch 24. Next, the sledging roll 21 is lowered to hold the vicinity of the tip end of the coil stock C with an inlet side feeding roll 9. The inlet side feeding roll 9 and a leveler feeder 3 are driven to send out the coil stock C until the tip end of the coil stock shields the beam of a third photoelectric switch 25. The sledging roll 21 is retreated upward and the outlet side upper feeding roll 10a is lowered.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing device for the next step through which the tip of a coil material unwound from an uncoiler and fed out is automatically fed to a leveler feeder and passed through the leveler feeder. The present invention relates to an automatic plate feeding device for a coil material that is automatically fed toward a die of a press machine.

[0002]

2. Description of the Related Art Generally, a coil material is mounted on an uncoiler, is unwound from the uncoiler while being gradually unwound, and is finally supplied to a press machine which is a processing device for press working. A leveler feeder for removing the warp of the coil material and feeding the coil material toward the next step is provided on the base on the inlet end side of the former stage of the processing apparatus together with the uncoiler.

Further, in feeding the coil material from the uncoiler to the leveler feeder, first, after mounting the coil material on the mandrel of the uncoiler, the outer periphery of the coil material is pressed by a coil material pressing roll to form a binding band. The tip end of the coil material that has been cut and unwound by an uncoiler and a coil material pressing roll and hung downward is supported and guided by a loop guide, and is fed to a leveler feeder through a plate.

Conventionally, in order to feed such a coil material to the leveler feeder, a coil material threading device having a structure as shown in FIG. 8 has been used. This conventional device includes a down-loop type uncoiler (a), a loop guide (c) provided below the uncoiler (a),
The uncoiler (a) comprises a coil material tip guide device (g) provided at appropriate intervals on the coil material feed side and a leveler feeder (d) provided with the coil material tip guide device (g). There is.

In short, one end of the loop guide (c) is pivotally attached to a column (wa) that is erected on the base opposite to the leveler feeder (d) with the uncoiler (a) at the center. The other end is a free end and swings like a virtual line (c ') by a cylinder or the like. On the inlet side of the leveler feeder (d), a coil material tip guide device (t) is provided to guide the tip of the coil material (b) derived from the loop guide (c) into the leveler feeder (d). ) Is installed.

This coil material tip guide device (g) is located on the inlet side of the leveler feeder (d), and is located above the R guide (d) and the R guide (d) fixed to the bracket of the table (d). A swing guide (h) pivotally attached to the bracket so as to swing to the bracket, and a width guide (yo) that regulates the width direction of the coil material (b) attached to the mandrel (ne) of the uncoiler (a). It consists of and.

Further, a width guide (L) is installed between the coil material tip guide unit (G) and the leveler feeder (D), and the inlet side upper and lower feed rolls are attached to the inlet side of the leveler feeder (D). (H, F) are pivotally attached. However, in the conventional coil material threading and feeding device of this type, as shown in FIG. 8, the pivot shaft (ta) of the vertical swing of the loop guide (c) is erected on the opposite side of the leveler feeder (d). It is pivotally attached to a pillar (wa). for that reason,
The free end of the loop guide (c) was weak and unstable under load. Therefore, when the operator tries to insert the tip end of the coil material, which is led out from the loop guide (c), between the R guide (re) and the swing guide (h) on the coil material tip guide device (g) side, While trying to visually check the state of the tip of the coil material, an attempt is made to pass between the R guide (re) and the swing guide (h), but the tip position of the loop guide (c) becomes unstable by supporting the coil material. Therefore, the tip of the coil material is not fixed, and it is difficult to pass the coil material (b) to the coil material tip guide device (g).

The present invention has been made in view of the above-mentioned problems of the prior art, and an object thereof is to automatically and reliably feed the coil material tip to the leveler feeder without the visual inspection of an operator. At the same time, an object of the present invention is to provide an automatic sheet feeding device for coil material that automatically feeds the coil material to the next process by the leveler feeder in synchronization with the sheet feeding at the tip of the coil material to the leveler feeder. .

[0009]

In order to achieve the above object, in an automatic coil feeding device for coil material according to the present invention, a coil material unwound and drawn by an uncoiler and a coil material pressing roll is leveled. In an automatic plate feeding device for feeding a coil to a feeder, one end is pivotally attached to the leveler feeder so that the other end is below the uncoiler and is unwound from the uncoiler. A loop guide having a swingable free end so as to support and guide the loop-shaped coil material, and one end of the loop guide is swingably pivotally attached to an upper portion of a pivotal attachment portion of the leveler feeder of the loop guide. , A swinging idler having a threading roll whose other end is pressed against an inlet side feed roll provided on the inlet side of the leveler feeder to sandwich the coil material. Those formed by providing a coil member tip guide apparatus comprising a coil material guide arms forming a. Further, the coil material guide arm pivotally attaches the sledging roll to the tip end portion of the free end, and a concave tip surface downward guide between the pivotal attachment portion of the leveler feeder and the threading roll. It is constructed by straddling. Further, a first photoelectric switch for detecting the tip position of the coil material extended from the loop guide and decelerating the drive of the uncoiler and the coil material pressing roll is provided on the upper surface of the coil material tip guide. The tip end of the guide arm forming the free end detects the tip end position of the coil material reaching the threading roll,
A second photoelectric switch for stopping the driving of the uncoiler and the coil material pressing roll is provided, the passage of the coil material tip is detected at the exit side end of the leveler feeder, and the exit side upper feed roll of the leveler feeder is detected. A third photoelectric switch is provided which, while being driven so as to press the outlet side lower feed roll, releases the threading roll from the inlet side feed roll at the same time. Next, the operation of the present invention will be described. The coil material is unwound by the uncoiler and the coil material pressing roll, and the tip of the coil material that hangs downward is supported by the free end side of the loop guide, and the tip of the coil material is guided so as to pass through the leveler feeder.
The loop guide is swung through a pivot pivotally attached to the leveler feeder to form a loop of coil material. The tip of the coil material supported by the loop guide is further extended to the vicinity of the threading roll of the coil material guide arm. Therefore, the coil material guide arm swings downward, and the leading end of the coil material is pressed into contact with the inlet-side lower feed roll provided on the inlet side of the leveler feeder to sandwich the coil material. Then, the leading end of the coil material is fed to the leveler feeder by these threading rolls and lower feed rolls on the inlet side. According to the second aspect, the coil material tip supported by the loop guide is passed through the coil material tip guide of the coil material guide arm so that the coil material tip can be smoothly moved to the vicinity of the threading roll of the coil material guide arm. Stretching is performed. Further, according to claim 3, the first photoelectric switch provided on the upper surface of the coil material tip guide of the coil material guide arm detects the tip position of the coil material extended from the loop guide to detect the uncoiler and the coil material. The drive speed of the presser roll is decelerated, and the second photoelectric switch provided at the tip of the coil material guide arm forming the free end detects the tip end position of the coil material that has reached the threading roll, and the uncoiler and coil The driving of the material pressing roll is stopped, and the passage of the coil material tip is detected by the third photoelectric switch provided at the exit side end of the leveler feeder, and the exit side upper feed roll of the leveler feeder is fed to the exit side lower feed. At the same time as driving to press the roll, the threading roll is released from the lower feed roll on the inlet side.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described in detail with reference to the drawings shown in Examples. 1 to 7
FIG. 1 shows a preferred embodiment of an automatic sheet feeding device for coil material according to the present invention. FIG. 1 shows a coil material supported by an uncoiler in a front view of the automatic sheet feeding device for coil material. FIG. 2 is a diagram showing a coil material that is unwound and supported along a loop guide. FIG. 2 is a front view of an automatic sheet feeding device for a coil material. Fig. 3 shows the coil material, Fig. 3 is a front view of the automatic coil feeding device for coil material, and Fig. 4 shows the coil material being automatically threaded from the loop guide to the upper part of the coil material guide arm. In the front view of the plate feeding device, the coil material in the automatic strip passing between the inlet side feed rolls by the threading roll of the coil material guide arm is shown in FIG. 5, and FIG. In front view FIG. 7 shows the coil material fed through the plater feeder, and FIG. 6 shows the coil material fed from the leveler feeder to the next step in the front view of the automatic plate feeding apparatus for coil material. FIG. 4 is a graph showing a change in speed at which a coil material is fed by an uncoiler and a coil material pressing roll motor.

Automatic coil feeding device 1 for coil material according to the present invention
Is provided in association with the uncoiler 2 and the leveler feeder 3 provided in parallel with the uncoiler 2, and is mounted on the inlet side of the leveler feeder 3. The uncoiler 2 includes an uncoiler motor 2b in which the coil material C is provided in the uncoiler main body 2a.
A coil material pressing cylinder 6 for swingingly driving the coil material pressing arm 5 and a bracket 5a for pivotally supporting the coil material pressing arm 5 are fixedly mounted on the mandrel 4 which is rotationally driven by. ing. A coil material pressing roll 7 is rotatably attached to the tip of the coil material pressing arm 5, and the coil material pressing roll 7 is rotationally driven by a pressing roll motor 8 fixed in the coil material pressing arm 5. Is configured to.

The leveler feeder 3 has an inlet side feed roll 9 axially mounted on its inlet side, and an outlet side upper feed roll 10a and an outlet side lower feed roll 10b mounted on its outlet side.
Further, a plurality of upper work rolls 11a are provided between the inlet side feed roll 9 and the outlet side upper / lower feed rolls 10a, 10b.
And a plurality of lower work rolls 11b are pivotally attached. Also, these inlet side feed roll 9 and upper / lower work roll 1
Between the 1a and 11b, the coil material C fed from the inlet side feed roll 9 is fed to the upper and lower work rolls 11a and 11b.
A coil material feeding guide 3d that guides the sheet to be fed to is fixedly installed.

The outlet side upper feed roll 10a descends so as to press the lower feed roll 10b, and
It is designed to separate from the lower feed roll 10b and rise. Further, on the top surface of the leveler feeder 3, the light receiving portion 24 of the second photoelectric switch 24 is provided on the inlet side.
a, and the third photoelectric switch 25 is installed on the exit side.

On the inlet side of the leveler feeder 3, a coil material tip guide device 12 is provided between the uncoiler 2 and the leveler feeder 3. The leveler feeder main body 3a is fixedly mounted on a table 3b installed on the floor surface, and a guide member 3c is projectingly provided on the inlet side surface thereof. The coil material tip guide device 12 pivotally mounts the loop guides 14 on the lower portions of both side surfaces of the guide member 3c of the leveler feeder main body 3a via the pivots 13, and further on the upper portions of both side surfaces of the guide member 3c, the pivot shafts 15 are provided. The coil material guide arm 16 is pivotally attached via the loop guide 14, and the loop guide 14 is connected to a loop guide cylinder 17 pivotably attached to the lower portion of the inlet side surface of the table 3b of the leveler feeder main body 3a. , The coil material guide arm 16,
The coil material guide arm cylinder 18 is pivotally mounted on the lateral side surface of the table 3b so as to be swingable.

The guide member 3c is made of a coil material C.
Of the coil material C supported by the mandrel 4 and the loop guide 14 so as to face the gap formed in the width direction of the mandrel 4, the tip end pressing member 19 projecting forward is fixed, and the coil material C is fed to the inlet side. Rollers 20a and 20b which are freely rotatable so as to guide the roll 9 to be fed are formed.

The loop guide 14 has a pair of arcuate plates 14a and 14b which are tapered from the pivotal portion of the pivot 13 pivotally attached to the guide member 3c to the free end thereof, and the pair of these which are separated in the width direction of the coil material C. A plurality of rotatable rollers 14c are mounted between the arcuate plates 14a and 14b along the arcuate shape of the arcuate plates 14a and 14b. The coil material guide arm 16 is arranged in the width direction of the coil material C so that the guide member 3
A pair of arm members 16a and 16b pivotally attached to a pivot 15 which is located above the pivot 13 of the loop guide 14 on the guide member 3c so as to sandwich c, and the pair of arm members 16a and 16b. Between the threading roll 21 rotatably mounted on the tip end of the guide member 3 and the pivoting portion of the guide shaft 3 of the guide member 3c, and the threading roll 21 with the concave surface facing downward over the arm members 16a and 16b. The coil material tip guide 22, the first photoelectric switch 23 fixedly installed on the rear side of the concave surface of the coil material tip guide 22, and the upper arm members 16a and 16b on which the threading roll 21 is mounted. The sledging roll 21 is composed of a second photoelectric switch 24 fixedly provided.
Cylinder 18 for a coil material guide arm, which is located in the lower part near the table and is pivotally attached to the lateral side surface of the table 3b so as to be swingable.
Is connected to and supported by the piston part of.

In the automatic coil feeding device for coil material according to the present invention having such a configuration, first, the coil material C is fed to the uncoiler 2
The mandrel 4 is expanded, the mandrel 4 is enlarged, and the coil material C is rotatably held by the uncoiler 2. After holding, the coil material C is rolled by the coil material pressing roll 7.
While holding the outer periphery of the coil material, the binding band of the coil material is cut, and the motors 2b and 8 of the uncoiler 2 and the coil material pressing roll 7 are driven as shown in FIG. 1 to unwind and unwind the coil material C.

The tip end of the coil material hanging downward from the uncoiler 2 is supported by the free end side of the loop guide 14. At this time, the loop guide 14 swings upward and is fixed. Furthermore, each motor 2 of the uncoiler 2 and the coil material pressing roll 7
b, 8 and when the coil material tip shields the light beam of the first photoelectric switch 23 of the coil material tip guide 22 as shown in FIG. 2, each motor 2b of the uncoiler 2 and the coil material pressing roll 7 The drive of No. 8 is decelerated and switched to a fine speed. However, since the inertial mass of the coil material C is large, the speed does not immediately become low.

FIG. 7 shows a change in speed at which the coil material C is fed out by driving the motors 2b and 8 of the uncoiler 2 and the coil material pressing roll 7. Note that point a in FIG. 7 is a starting point at which the motors 2a and 8 are started, and point b is a switching point at which the motors 2a and 8 are switched to a fine speed by the coil material tip blocking the first photoelectric switch 23. Show. When each of the motors 2a, 8 is driven at a fine speed and then further driven at a fine speed to shield the second photoelectric switch 24 for detecting that the tip of the coil material has passed the threading roll 21, The driving of the uncoiler motor 2b and the coil material pressing roll motor 8 is stopped.

FIG. 3 shows a state in which the driving of the uncoiler motor 2b and the coil material pressing roll motor 8 is stopped. Point c in FIG. 7 shows a stop point of driving of the uncoiler motor 2b and the coil material pressing roll motor 8. Next, the threading roll 21 is lowered as shown by the arrow in FIG. 3, and as shown in FIG. 4, the threading roll 21 and the inlet side feed roll 9 hold the vicinity of the tip of the coil material C. Further, as shown in FIG. 4, the loop guide 14 is actuated by the loop guide cylinder 17 to swing as shown by the arrow in FIG. After lowering the loop guide 14, the coil material C is
Is detected and the driving of the uncoiler motor 2b of the uncoiler 2 and the press roll motor 8 is automatically controlled so as to maintain an appropriate loop amount.

As shown in FIG. 5, the inlet side feed roll 9 and the leveler feeder 3 are driven so that the tip end of the coil material is the outlet side upper / lower feed rolls 10a, 10 of the leveler feeder 3.
The coil material C is sent out until the light beam of the third photoelectric switch 25 for detecting the passage through b is blocked. Third
When the light beam of the photoelectric switch 25 is blocked, the sleding roll 21 is swung upward and retracted upward as shown by the arrow in FIG. Lowering and further pressurizing, the outlet side upper feed roll 10a and the outlet side lower feed roll 10b
The coil material C is sandwiched between and.

As shown in FIG. 6, the coil material C drives the upper and lower work rolls 11a and 11b of the leveler feeder 3 and the upper and lower feed rolls 10a and 10b on the outlet side to rotate, and the coil material C of a press machine (not shown). The required length up to the mold is sent out. As described above, the plate feeding device 1 for the coil material C is shown in FIG.
From the above, the coil material C is automatically fed to the appropriate position of the die of the press machine by the operation shown in FIG.

[0023]

As described above, the present invention is an automatic plate feeding device for coil material for feeding the coil material unwound by the uncoiler and the coil material pressing roll to the leveler feeder. Is swingably pivotally attached to the leveler feeder, and the other end thereof is below the uncoiler and is swingable to support and guide the coiled coil material unwound from the uncoiler. An end side feed roll provided with an end loop guide and one end pivotably attached to an upper part of a pivot attachment portion of the leveler feeder of the loop guide and the other end provided on the inlet side of the leveler feeder. And a coil material guide arm having a slidable roll that presses against the coil material and sandwiches the coil material, and a coil material guide arm having a swinging free end. Therefore, the tip of the coil material can be stably supported, and a guide for passing the tip of the coil material can be easily and accurately formed, and also a loop-shaped coil material can be supported and guided. It is possible to reduce the labor of feeding the sheet to the feeder. According to a second aspect of the present invention, the coil material guide arm pivotally attaches the sledging roll to the tip of the free end, and a concave surface is lowered between the pivotal attachment portion of the leveler feeder and the sledging roll. Since the coil material tip guide facing toward is straddled, it is possible to facilitate the work of passing the tip of the coil material to the leveler feeder. Further, according to claim 3, on the upper surface of the coil material tip guide, the first photoelectric device for detecting the tip position of the coil material extended from the loop guide to decelerate the drive of the uncoiler and the coil material pressing roll. A switch is provided, and a tip end portion of the coil material guide arm forming a free end detects a tip end position of the coil material reaching the sledgeging roll, and stops driving of the uncoiler and the coil material pressing roll. Equipped with a photoelectric switch
At the exit end of the leveler feeder, the passage of the coil material tip is detected, and the exit side upper feed roll of the leveler feeder is driven to press against the exit side lower feed roll, and at the same time, the sledging roll is moved to the entrance. Since the third photoelectric switch for releasing from the side feed roll is provided, it is possible to automatically feed the coil material tip to the leveler feeder and feed the coil material from the leveler feeder to the next process.

[Brief description of the drawings]

FIG. 1 is a front view illustrating a coil material supported by an uncoiler in an automatic coil feeding device for a coil material of the present invention, which is unwound and supported along a loop guide.

FIG. 2 is a front view showing the coil material during automatic threading from the loop guide to the coil material guide arm in the automatic coil material feeding apparatus of the present invention.

FIG. 3 is a front view illustrating the coil material in the automatic threading from the loop guide to the upper part of the coil material guide arm in the automatic coil material feeding apparatus of the present invention.

FIG. 4 is a front view illustrating the coil material in the automatic threading sandwiched between the inlet side feed rolls by the threading roll of the coil material guide arm in the automatic coil material feeding apparatus of the present invention.

FIG. 5 is a front view illustrating the coil material fed through the leveler feeder of the automatic coil material feeding apparatus of the present invention.

FIG. 6 is a front view showing the coil material fed from the leveler feeder to the next step in the automatic coil sheet feeding apparatus of the present invention.

FIG. 7 is a graph showing changes in the speed at which the coil material is fed out by the respective motors of the uncoiler and the coil material pressing roll in the coil material automatic sheet feeding device of the present invention.

FIG. 8 is a front view showing a conventional example of a coil material passing device.

[Explanation of symbols]

 1 Automatic Plate Feeding Device 2 Uncoiler 3 Leveler Feeder 4 Mandrel 7 Coil Material Holding Roll 9 Inlet Side Feed Roll 10a Outlet Upper Feed Roll 10b Outlet Lower Feed Roll 12 Coil Material Tip Guide Device 14 Loop Guide 14a, 14b Arc plate 14c Roller 15 Pivot 16 Coil material guide arm 21 Threading roll 23 First photoelectric switch 24 Second photoelectric switch 25 Third photoelectric switch C Coil material

Claims (3)

[Claims] 1. An automatic plate feeding device for a coil material, which feeds the coil material unwound by an uncoiler and a coil material pressing roll to a leveler feeder, and one end of which is swingable to the leveler feeder. A loop guide that is pivotally connected and has a free end that is swingable so as to support and guide a loop-shaped coil material unwound from the uncoiler, the other end being below the uncoiler; The loop guide is pivotally attached to an upper part of a pivotal attachment portion of the leveler feeder so as to be swingable, and the other end is pressed against an inlet side feed roll provided on the inlet side of the leveler feeder to sandwich the coil material. An automatic coil feeding device for a coil material provided with a coil material tip guide device including a coil material guide arm having a free end and swinging with such a threading roll. 2. A coil in which the coil material guide arm pivotally attaches the sledging roll to the tip of the free end, and a concave surface faces downward between the pivotal attachment portion of the leveler feeder and the sledging roll. The automatic strip feeding device for coil material according to claim 1, wherein the material tip guide is provided over the material. 3. A first photoelectric switch for detecting the tip position of the coil material extended from the loop guide and decelerating the drive of the uncoiler and the coil material pressing roll is provided on the upper surface of the coil material tip guide, A second end that detects the leading end position of the coil material that has reached the threading roll at the leading end of the coil material guide arm that forms the free end, and stops driving the uncoiler and the coil material holding roll.
The photoelectric switch is provided, at the outlet end of the leveler feeder, the passage of the coil material tip is detected, and the outlet side upper feed roll of the leveler feeder is driven so as to be pressed against the outlet side lower feed roll. The automatic sheet feeding device for coil material according to claim 1, further comprising a third photoelectric switch for releasing a threading roll from the inlet side feed roll.