JPH11104735A - Processing device for stripped coil band cutting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To seek a prevention of a loose coil winding and of a band nipping in the band cutting processing device for the stripped coil binding band. SOLUTION: This device comprises a band cutter device 3, having a binding band detecting device 3-6, a band cutter 3-4, a band clamp jig 3-5 on a mobile truck 1 movable forward/backward in a right angle direction to a coil transfer conveyor 9, a band delivery device 4 to pull out a binding band cut from the coil by a roller, a winding machine 5 to wind the pulled out band, and a band nipping prevention unit 6. Then, the coil is hung up by a transfer machine 7, the mobile truck 1 is made to move forward under a state that a peripheral face of the coil is pressed by a coil pressing device 8, a band nipping prevention unit is inserted between the coil 10 and the transfer conveyer, and the binding band of the coil placed on the band nipping prevention unit is cut by the cutter, and the cut band is wound up by the winding machine via the delivery device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for cutting a binding band of a strip coil at an entrance side of various processing lines such as an acid pickling process and a cold rolling process in a strip manufacturing line.

[0002]

2. Description of the Related Art As a method of cutting a coil binding band on the entry side of various strip processing lines, a method of cutting the binding band on a coil conveyor or a process of transferring a strip coil from a conveyor to a payoff reel is used. There is a method of cutting the binding band by using, for example, a method of cutting in the coil transfer process, for example, a band provided with a band cutting device in a coil transfer machine, a band provided with a presser roll for preventing winding of the coil during cutting. A cutting device is known (see Japanese Patent Application Laid-Open No. 5-154553).

In the case of a method of cutting a binding band on a coil conveyor, there is a problem that the band is laid under the coil and cannot be removed. As a countermeasure, for example, as shown in FIG.
A liner 23 is attached to the belt surface of the conveyor 22 or a pair of front and rear saddles 24 are mounted in place of the belt as shown in FIG. 6 so that a gap is formed in the portion where the binding band 21 is hung. There is a method in which the strip coil 20 is placed on the saddle 24 and transported so that the portion of the strip coil 20 where the binding band 21 is hung is located between the saddles 24 using the conveyor 25 with the saddle.

[0004] However, these countermeasures are problematic in that the number of coils that can be loaded on the conveyor is limited by the fact that the position of the coil loaded on the conveyor is determined by the maximum width or the maximum diameter of the coil. When lowering the coil on the conveyor, the binding band must be placed while being positioned so as to be located between the liners 23 or between the saddles 24. There is a problem that the skill must be mastered, and a problem that the coil is loosened when the coil is transferred from the conveyor to the payoff reel by the transfer machine after the band is cut.

[0005] In the case of a system in which a band cutting device and a press roll for preventing coil loosening are assembled to a coil transfer machine to cut a band, a band cutting device and a coil loose prevention for an existing coil transfer machine are installed. If a presser roll is attached, the weight is inevitably increased, which reduces the loading capacity of the coil transfer machine and complicates the structure for supplying power to the band cutting device. However, there is a problem in that a large-scale remodeling is required, and the equipment cost must be increased.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned conventional problems, and there is no limitation on the number of coils loaded on a coil conveyor, and it is also possible to reduce the number of coils after a band is cut. It is an object of the present invention to provide a strip coil band cutting apparatus which can prevent winding looseness and does not require a large-scale modification when applied to existing equipment.

[0007]

SUMMARY OF THE INVENTION A strip coil band cutting apparatus according to the present invention is an apparatus for cutting a binding band of a strip coil at an entrance side of various lines, and is installed near a coil conveying conveyor. A self-propelled truck that moves forward and backward in a direction perpendicular to the conveyor, grips a binding band detection device, a binding band cutter, and a binding band that move in the coil axis direction by a traversing mechanism such as a hydraulic cylinder on the head. A band cutter device that has a band clamp jig and moves forward and backward in the coil radial direction by a longitudinal movement mechanism such as a fluid pressure cylinder, and a band delivery device that pulls out the binding band cut by the cutter device from the coil by a roller. A band winding machine that winds the binding band pulled out by the band sending device into a coil shape, It consists of at least two bar-shaped horizontal bars projecting horizontally in the direction perpendicular to the il conveyor and the bar is inserted between the coil and the coil conveyor, so that the strip is formed by the springback of the strip generated when the band is cut. A band pinch prevention device is installed to prevent the band from being pinched between the coil conveyors, and furthermore, a winding machine for transferring the strip coil from the conveyor to the payoff reel to prevent loosening of the coil when cutting the binding band. Equipped with a coil holding device consisting of a fluid pressure cylinder, the strip coil is lifted by the transfer machine, and the band pinch prevention device is inserted between the coil and the coil transport conveyor to place the coil on the horizontal bar. Cut the binding band with the band cutter device It is characterized in that the winding handle the binding band at the band winder through said band delivery system.

The self-propelled trolley according to the present invention is installed on a track of a desired length laid in a direction perpendicular to the coil conveying conveyor, and drives wheels by power of a motor or the like mounted on the trolley. It is a system with a braking device.

[0009] The band cutter device is installed horizontally on a gantry installed on the upper surface of the self-propelled carriage. Attach a cutter head that moves in the coil axis direction by a traverse mechanism such as an air cylinder to the tip of the rod, and integrally attach a binding band detector, a binding band cutter, and a band clamp jig that grips the binding band. With the configuration
The binding band detector includes a contact-type detector mounted on the head, and a binding band cutter and a band clamp jig are incorporated in the head in proximity to the detector. The tying band cutter, for example, was attached so that the upper blade and the lower blade moved in the coil axis direction with the power of a motor or the like, and the lower blade penetrated under the band, and became a mechanism for cutting between the upper blade and the upper blade. Can be used. Also,
As the band clamp jig, for example, one having a structure in which the band is gripped from both sides by a pair of left and right grips that move in the coil axis direction by the power of a motor or the like can be used.

[0010] In a band sending device for taking out a binding band cut by the cutter device from a coil, a band gripped by a band clamp jig incorporated in the band cutter device retreats a head of the band cutter device. In the state of being pulled by, a movable holding roll that operates up and down by an air cylinder etc. and a fixed roll are sandwiched by a stand installed on the upper surface of a self-propelled bogie, and this pair of rolls is driven to rotate by a motor etc. By doing so, the band is pulled out and sent backward. The band pulled out by this band sending device is guided to a band winder installed at the rear of the gantry, is wound around a small diameter wheel, and is processed as scrap.

A band pinching prevention device for preventing the band from being pinched between the strip and the coil conveyor by the spring back of the strip generated when the band is cut off is provided at the tip of the self-propelled bogie so as to be horizontally at right angles to the coil conveyor. It consists of at least two bar-shaped horizontal bars protruding, and is mounted so that the horizontal bars are inserted between the coil and the coil conveyor by the forward movement of the self-propelled bogie. The horizontal bar has a length capable of supporting the coil body on both sides at a predetermined advance position, and is protruded at a predetermined interval so as to be located outside the binding band.

A coil presser comprising a hydraulic cylinder for preventing loosening of a coil when cutting a binding band is of a type in which a rod of a hydraulic cylinder is extended to press a coil surface. It is attached to the inner surface of a pair of tongs.

[0013]

FIG. 1 is a side view showing an apparatus according to an embodiment of the present invention, FIG. 2 is a plan view of the same apparatus, and FIG. 3 is a side view showing a state in which a tie band of a strip coil is cut by the same apparatus. FIG. 4 is a side view showing a state in which the cut binding band is separated from the coil and wound up, 1 is a self-propelled bogie, 2 is a gantry, 3 is a band cutter device, and 4 is a band sending device. 5 is a band winder, 6 is a band pinching prevention tool, 7 is a coil transfer machine, 8 is a coil presser,
9 is a coil conveyor, 10 is a coil, 11 is a binding band, 12 is a track, 13 is a guide, and 14 is a scrap bucket.

The self-propelled trolley 1 is installed on a track 12 of a desired length, which is laid in a direction perpendicular to the coil conveying conveyor 9, and is driven by a motor 1-1 mounted on the trolley via a power transmission mechanism. And a braking device (not shown) is provided. That is,
The self-propelled carriage 1 is installed so as to move forward and backward by a predetermined stroke in a direction perpendicular to the coil conveyor 9.

The band cutter device 3 installed on the self-propelled trolley 1 includes a pair of left and right air cylinders 3 laid horizontally on the gantry 2 of a required height installed on the upper surface of the trolley in a direction perpendicular to the coil conveyor. -1 and a frame 3-2 horizontally supported at the rod end of the cylinder at right angles to the rod.
And a cutter head 3 suspended movably in the coil axis direction on the frame 3-2 and reciprocated in the coil axis direction by an air cylinder 3-4 provided transversely to the frame in the coil axis direction.
-3, and a binding head cutter 3-4, a band clamp jig 3-5 for gripping the binding band, and a binding band detection device 3-6 are integrally incorporated in the cutter head 3-3.

The binding band cutter 3-4 is composed of an upper blade and a lower blade that move in the coil axis direction by the power of a motor or the like, and the lower blade penetrates under the band and cuts between the band and the upper blade. It has a mechanism. A band clamp jig 3-5 for gripping the binding band is located immediately below the band cutter 3-4, and is configured to grip the band from both sides with a pair of left and right grips that move in the coil axis direction by the power of a motor or the like. And that. Further, the binding band detection device 3-6 is formed of a contact type detector, is located above the band cutter 3-4, and when the binding band is detected by this detection device,
At the same time when the cutter head 3-3 stops at that position,
Band clamp jig 3-5 and band cutter 3-4
Automatically operates to cut the band. Since the band cutter 3-4, the band clamp jig 3-5, and the band detection device 3-6 are known, the description of the structure is omitted here.

The band sending device 4 for taking out the binding band cut by the band cutter device 3 from the coil,
It is composed of a pair of left and right bending arms 4-2 and a connecting plate 4-3 provided between both arms, and a band pressing roll 4
-4, with the pressing roll 4-4 facing the coil side, the base thereof is rotatably mounted on a base 2 installed on the upper surface of the self-propelled carriage 1, and a band cutter is mounted on the base 2. A movable roll supporter 4-1 provided so as to rotate up and down about the base with a pair of left and right air cylinders 4-6 provided in parallel with the air cylinder 3-1 of the device 3; A band support roll 4-8 driven by a motor 4-9 provided as a pair with the pressing roll 4-4 on a support base 4-7 protruding from a front portion of the band cutter 2; While the band cut by the device 3 and gripped by the band clamp jig 3-5 is pulled by the retreat of the cutter head 3-3 of the band cutter device, the pressing roll 4-4 and the band receiver are pulled. Band between rolls 4-8 The only role 4-8 the motor 4
By rotating at 9, the band is pulled out and sent backward.

A band winder 5 for winding and retracting the band drawn by the band delivery device 4 into a small-diameter wheel and processing the scrap as scrap is provided on the rear upper surface of the gantry 2 by a band pressing roll of the band delivery device 4. 4-4 and receiving roll 4-8
And the band pulled out by the band sending device 4 is connected to the band pressing roll 4-4 and the guide 13 disposed on the exit side of the receiving roll 4-8. To be wound into a small-diameter wheel and processed as scrap. The scrap band wound around the small-diameter wheel is automatically thrown into a scrap bucket 14 installed near the retreat position of the self-propelled trolley 1. The band winder 5 is a machine that gives permanent bending to the scrap band cut and removed by the band cutter device 3, winds it into a small-diameter wheel, and discharges it out of the machine. , And the description of the mechanism is omitted because it is known.

A band pinching prevention device 6 for preventing a band from being pinched between a strip and a coil conveyor by spring back of the strip generated when the band is cut.
Consists of two bar-shaped horizontal bars 6-1 protruding horizontally at right angles to the coil conveyor 9 at the front of the self-propelled carriage 1, and the self-propelled carriage 1 has a strip formed when the band is cut. It is mounted horizontally via a coil spring 6-2 or a leaf spring to reduce the impact due to springback. The horizontal bar 6-1 has a length capable of supporting the coil 10 main body on both sides at a predetermined forward position, and is spaced apart from the two binding bands 11 by a predetermined distance here. It is protruding.

The coil presser 8 for preventing the coil from being loosened when the banding band is cut is provided with two tune-operating fluid pressures mounted on the inner surfaces of a pair of right and left tongs 7-1 of the coil transfer machine 7. In this method, the rod of the fluid pressure cylinder 8-1 is extended to press the coil surface.

Next, a description will be given of a procedure for cutting the two binding bands of the strip coil by the above apparatus. First, the coil 10 transported to the band cutting step by the coil transport conveyor 9 is stopped at the lifting position of the coil transfer machine 7 and lifted by the tongs 7-1 to prevent the band from being pinched between the coil transport conveyor 9 and the coil transport conveyor 9. The 6 horizontal bars 6-1 create a gap that can be inserted. The coil 10 thus lifted is pressed by the coil pressing device 8 in advance so as to prevent the winding of the coil 10 from being loosened even when the two binding bands 11 are cut.

Next, the self-propelled trolley 1 standing by at the retreat position travels forward to a predetermined position, and sandwiches a band consisting of two horizontal bars 6-1 protruding from the front of the trolley. The prevention tool 6 is inserted between the coil conveyor 10 and the coil 10 outside the binding band. At the same time, the self-propelled trolley 1 is braked and stopped at the position.
The pair of left and right air cylinders 3-1 of the band cutter device 3 installed above move forward to move the cutter head 3-3 attached to the [form 3-2 at the tip of the rod to the coil 10 side. .

When the cutter head 3-3 comes into contact with the coil surface, the cutter head 3-3 stops at the position, and at the same time, the cutter head 3-3 is moved in the coil axial direction by the air cylinder 3-4 provided laterally in the coil axial direction. The cutter head 3-3 stops at the same position as the binding band 11 is detected by the binding band detection device 3-6, and the band clamp jig 3-5 grips the binding band 11. First, the first binding band 11 is cut by the binding band cutter 3-4.

When the first banding band 11 is cut in this manner, the air cylinder 3-1 moves backward and the cutter head 3-3 is moved to the end of the banding band 11 by the band clamp jig 3-5. Retreats while gripping.

The cutter head 3-3 is retracted to a predetermined position, and the band 11 held by the band clamp jig 3-5 is moved to the band receiving roll 4-8 of the band sending device 4.
When the movable roll support 4-1 is placed on the movable roll support 4-1, the movable roll support 4-1 is pushed forward and pivots downward. Then, a pressing roll 4-4 and a band receiving roll 4-attached to the tip of the movable roll support 4-1.
8, the band clamp jig 3-5 is opened to release the band 11, and at the same time, the band receiving roll 4-8 reversely rotates to return the band 11 to the coil side. When the tip of the band is located at the entrance of the guide 13 disposed on the exit side of the band pressing roll 4-4 and the receiving roll 4-8, the band receiving roll 4-8 is rotated forward. This band receiving roll 4-
By the forward rotation of 8, the band 11 is introduced into the band winder 5 via the guide 13 and wound around a small-diameter wheel.

Subsequently, in order to cut the second binding band, the cutter head 3-3 advances again, contacts the coil surface and moves in the coil axis direction at the same time. When the banding jig 3-5 is detected, the band clamp jig 3-5 moves the banding jig 3-5.
The second cut is performed by the binding band cutter 3-4 in a state where is gripped.

When the second banding band is cut, the tip of the coil strip instantly drops downward due to springback, and the tip of the strip is inserted between the coil conveyor 9 and the coil 10 in advance. Since the binding band 11 falls on the two horizontal bars 6-1 of the band pinching prevention tool 6, the binding band 11 is not pinched between the band and the conveyor. Then, similarly to the first band processing, the cut second binding band is retracted to a predetermined position with the cutter head 3-3 gripping the end of the binding band 11 with the band clamp jig 3-5. And band clamp jig 3
The band 11 held by -5 is the band sending device 4
Is introduced into the band winder 5 and wound around a small-diameter wheel.

The two binding bands wound by the band winder 5 in this manner are automatically thrown into the scrap bucket 14 installed near the retreat position of the self-propelled carriage 1.

On the other hand, when the two binding bands 11 are cut, the outer winding of the strip coil 10 tends to be loosened. However, the coil holding device 8 attached to the tongue 7-1 of the coil transfer machine 7 has a coil Since the outer periphery is pressed and fixed, the reel is mounted on a coil car without being loosened and mounted on a payoff reel.

[0030]

As described above, according to the present invention, the following effects can be obtained. (1) Separate the coil holding device and the band cutting device to prevent the coil from loosening due to the cutting of the binding band,
By providing only the coil holding device in the coil transfer device, the loading capacity of the coil transfer device is not reduced, and the structure for supplying power to the band cutting device is not complicated, When applied to existing equipment, no major modification is required, and equipment costs are relatively low. (2) A self-propelled trolley equipped with a band cutting device is provided with a band pinch prevention device for preventing the band from being pinched between the strip and the coil conveyor by spring back of the strip generated when the band is cut. The band can be completely prevented from being caught between the strip and the coil conveyor by mounting the anti-jamming device to be automatically inserted between the coil and the coil conveyor by the forward movement of the coil. . (3) Since the cut banding band is pulled out by the band cutting device as it is, sent out by a roller, wound up by a band winding machine and discharged, the processing of the cut banded band is performed smoothly and quickly. Can be.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a plan view of the same device.

FIG. 3 is a side view showing a state where the binding band of the strip coil is cut by the above device.

FIG. 4 is a side view showing a state in which a cut binding band is detached from a coil and a winding process is performed.

FIGS. 5A and 5B are views showing an example of a conventional binding band laying-in prevention means when a binding band is cut on a coil conveying conveyor, wherein FIG. 5A is a side view and FIG. 5B is a front view.

FIGS. 6A and 6B are diagrams showing another example of the conventional binding band laying prevention means when the binding band is cut on the coil conveying conveyor, wherein FIG. 6A is a side view and FIG. 6B is a front view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Self-propelled trolley 2 Stand 3 Band cutter device 4 Band feeding device 5 Band winder 6 Band pinching prevention tool 7 Coil transfer device 8 Coil holding device 9 Coil transport conveyor 10 Coil 11 Binding band 12 Track 13 Guide 14 Scrap bucket

Claims (1)

[Claims] An apparatus for cutting a binding band of a strip coil at an entrance side of various lines, comprising: a self-propelled bogie installed near a coil conveyor and moving forward and backward in a direction perpendicular to the conveyor. The unit has a binding band detection device that moves in the coil axis direction by a traversing mechanism such as a fluid pressure cylinder, a binding band cutter, and a band clamp jig that grips the binding band. A band cutter device that moves forward and backward in the coil radial direction, a band sending device that pulls out the binding band cut by the cutter device from the coil by a roller, and a band binding device that is pulled out by the band sending device. And a band winder that winds at least two rod-like horizontal members protruding horizontally at right angles to the coil conveyor at the end of the bogie. The band is inserted between the coil and the coil conveyor, and a band pinch prevention device is installed to prevent the band from being pinched between the strip and the coil conveyor by the spring back of the strip generated when the band is cut. Further, the transfer machine for transferring the strip coil from the conveyor to the pay-off reel is provided with a coil holding device including a fluid pressure cylinder for preventing the coil from being loosened when the binding band is cut, and the strip coil is transferred to the transfer machine. In the state of being lifted and hung, the band clipping device was inserted between the coil and the coil conveyor, and the band was cut by the band cutter device with the coil placed on the horizontal bar. The binding band is wound by the band winder via the band sending device. Band cutting apparatus of the strip coils, characterized by sense.