KR100408695B1 - Device for preventing slip of strip in coiler - Google Patents

Abstract

The present invention provides a strip slipper prevention device of a winder, which is provided with a cloth having a high coefficient of friction so as to increase the frictional force with the strip on the surface of the pinch roll to prevent slippage of the strip during strip feeding. Has its purpose.

Accordingly, the present invention, by installing a mesh cloth that can increase the friction force with the strip on the surface of the pinch roll for advancing the strip so that the mesh cloth is rotated like the pinch roll, so that the strip does not slide by the mesh cloth along the pinch roll Provided is a slip prevention device for a winder having a structure that can be fed.

Description

Device for preventing slip of strip in coiler

The present invention relates to a winder for winding a strip into a coil, and in particular, a strip slip of the winder, which can prevent the strip from slipping on the pinch roll during a feeding operation in which the first end of the strip is hung on the mandrel of the winder. It relates to a prevention device.

In general, a winder is a device that rolls a coil through a cold rolled or hot rolling mill for convenience of storage, transportation, and other processing before sending it to a post process.

As shown in FIG. 4, the winding machine includes a mandrel 102 installed on the side of the housing 100 of the winder, on which the strip 200 is wound, and a driving means for rotating the mandrel 102. In front of the winder, a cutter 104 for cutting the strip 200 and a pinch roll 106 for transferring the strip 200 are installed.

Therefore, the strip passing through the rolling mill or the grinding machine is transferred by the driving force of the pinch roll and wound on the mandrel of the winding machine. When a certain amount of the coil is wound, the strip is cut by a cutter to produce a coil having a certain diameter. It is transferred to the next process by fuco car removed from the mandrel.

Feeding operation is the operation to transfer the first leading edge of the trailing strip cut by the cutter as described above to the mandrel to fit the grip groove of the mandrel again.

However, in the related art, there is a problem in that the pinch roll does not transfer the strip while the strip slips on the pinch roll due to the abrasive oil on the strip during the feeding operation.

That is, as the strip is not advanced in time, a strip looper is generated and scratches are generated on the lower surface of the strip, and a strip feeding delay causes excessive work preparation time, resulting in a decrease in productivity.

In order to solve the above problem, conventionally, as shown in FIG. 4, the operator inserts the corrugated cardboard 108 or the like between the pinch roll 106 and the strip 200 to increase the coefficient of friction so that the strip 200 does not slip. It was to be transferred to the reel (102).

However, the conventional method has a problem that may cause a safety accident due to the dangerous operation of inserting the corrugated cardboard between the ongoing strip and the pinch roll.

Accordingly, the present invention has been made to solve the above problems, by installing a cloth of high friction coefficient material, such as to increase the frictional force with the strip on the surface of the pinch roll to prevent the sliding phenomenon of the strip during strip feeding operation It is an object of the present invention to provide a strip slipper prevention device of a winder.

1 is a perspective view of a strip slip prevention device according to the present invention;

2 is a detailed view of the portion A of FIG. 1 according to the present invention;

3 is a detailed view of portion B of FIG. 1 according to the present invention;

4 is a perspective view showing a state of feeding a strip according to the prior art.

Explanation of symbols on the main parts of the drawings

10: upper pinch roll 12: lower pinch roll

14: base 16: drive motor

20: moving frame 22: guide bar

24: guide hole 26: cylinder

30: mesh cloth 40: tension roll

42: guide member 44: support block

46: elastic spring 50: rod

52: nut 56: drive motor

60: hose 62: nozzle

64: oil collecting plate 66: piping

68: screw 70: drive motor

72: solenoid valve 74: detection sensor

90: controller

The present invention for achieving the object as described above, by installing a mesh cloth to increase the friction force with the strip on the surface of the pinch roll for advancing the strip so that the mesh cloth is rotated like the pinch roll, the strip is the mesh cloth It is characterized by being able to be fed along a pinch roll without being slipped by it.

In addition, the present invention is characterized in that the abrasive oil of the strip attached to the mesh cloth can be recovered and reused.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a strip slip prevention device according to the present invention, Figures 2 and 3 is a partial detail of Figure 1 according to the present invention.

According to the above drawings, the present invention provides a pinch roll (10, 12) for advancing the strip 200, friction means for increasing the coefficient of friction is provided on the surface of the pinch roll (10, 12), this friction It consists of drive means for advancing the means in the same manner as the rotation of the pinch rolls 10 and 12.

The pinch roll is composed of an upper pinch roll 10 and a lower pinch roll 12, the lower pinch roll 12 is rotatably installed on the base 14 fixed to the facility and the drive motor 16 on one side of the rotation shaft ) Is connected.

The upper pinch roll 10 is supported by the moving frame 20 installed on the rotary shafts at both ends, and the moving frame 20 is inserted into the guide bar 22 installed perpendicular to the base 14 to move up and down. A hole 24 is formed and coupled to the guide bar 22, and the piston rod end of the cylinder 26 is connected to the moving frame 20 to install the moving frame 20 according to the driving of the cylinder 26. This structure moves up and down.

In the installation of the cylinder 26, the cylinder 26 is vertically installed on the connecting member 28 connecting the upper end of the guide bar 22 so that the piston rod of the cylinder 26 moves downward of the frame 20. It is structured to be installed at the top.

According to one embodiment of the present invention, two upper pinch rolls 10 are installed on the left and right sides of one extended moving frame 20, and both ends of each upper pinch roll 10 have the same structure as above. 26) is installed.

Wherein the friction means is made of a mesh cloth (30) wound on the upper pinch roll 10, and the tension portion for imparting tension to the mesh cloth (30).

Looking at Figure 2, the mesh cloth 30 is connected across the upper pinch roll 10 before and after the strip 200, the tension portion is located between the upper pinch roll 10 Guide member 42, which is fixed to the tension roll 40 and the movable pin 20, which the upper pinch roll 10 is installed, and the guide rail 48 is formed in the vertical direction. And a support block 44 installed on the rotation shaft of the tension roll 40 and moving along the guide rail 48 of the guide member 42, between the support block 44 and the guide member 42. Is installed is made of an elastic spring 46 for pushing the tension roll 40 elastically.

Therefore, the mesh cloth 30 is wound in a triangular form on the two upper pinch roll 10 and the tension roll (40).

As shown in FIG. 3, a rod 50 having a screw thread formed at a distal end thereof is attached to a lower portion of the support block 44 to penetrate the spring 46 to be formed on the bottom surface of the guide member 42. It is structured to be fixed to the nut 52 on the outside of the guide member 42 through the hole.

Therefore, when the nut 52 is tightened or released, the tension force of the spring 46 can be adjusted.

Here, reference numeral 54 is installed on the left and right sides of the tension roll 40 is a guide plate for preventing the mesh cloth 30 is separated.

The driving means is connected to the rotary shaft of the upper pinch roll 10 installed on one side of the moving frame 20 is composed of a drive motor 56 and a reducer 58 for driving the upper pinch roll 10.

In addition, the present invention comprises a collecting means for recovering the abrasive oil of the strip 200 buried in the mesh cloth 30, which is the friction means.

The oil collecting means includes an air spray hose 60 placed in the longitudinal direction of the tension roll 40 on the mesh cloth 30, an air spray nozzle 62 installed at a predetermined interval on the hose 60, and the mesh cloth 30. ) The oil collecting plate 64 installed at the lower part to collect oil removed by air, the pipe 66 installed at the bottom of the oil collecting plate 64, and the oil collecting plate 64 at the bottom in the longitudinal direction. It consists of a screw 68 for flowing into the pipe 66 and a drive motor 70 for rotating the screw 68.

On the other hand, preferably the air injection and screw operation is to be made automatically, for this purpose is provided with a solenoid valve 72 for opening and closing the hose 60 on one side of the air hose 60, the moving frame 20 and the base 14 are provided with a detection sensor 74 and a sensing piece 76, respectively, when the moving frame 20 is lowered and the sensing piece 76 is detected by the detection sensor 74 of the sensor In response to the signal, the solenoid valve 72 and the drive motor 70 operate to open the hose 60 and rotate the screw 68.

Here, reference numerals 78, 80, and 82 are the support frame for fixing the guide member 42 to the moving frame 20 and the collecting plate 64 to prevent the dispersion of oil during air spraying, respectively. Shatterproof plate is installed on both sides, and a drain box for receiving the drained oil.

Hereinafter, the operation of the strip slip prevention device of the present invention winder will be described.

When the preceding strip 200 is completely wound by a coil and then enters a feeding operation to wind the next strip 200 to the coil, the switch 26 is operated to operate the cylinder 26 to operate the cylinder 26 to be installed on the moving frame 20. Lower the upper pinch roll (10).

That is, when the cylinder 26 is operated, the piston rod 50 is extended and the moving frame 20 connected to the piston rod 50 is lowered along the guide bar 22 of the base 14. The upper pinch roll 10 and the tension roll 40 installed on the moving frame 20 are simultaneously lowered toward the strip 200.

Here, the mesh cloth 30 forms a triangular shape by being caught by both upper pinch rolls 10 and the tension roll 40 in the center. As the moving frame 20 itself descends, the mesh cloth 30 also has a triangular shape. It will descend while keeping it as it is. Therefore, the tension hung on the mesh cloth 30 is maintained as it is.

The cylinders 26 are installed at both ends of each upper pinch roll 10 so that all four cylinders 26 operate, and the extension amount is the same so that the upper tension roll 40 is strip 200. ) Can be uniformly adhered to.

When the moving frame 20 is lowered as described above, when the upper pinch roll 10 presses the strip 200, the mesh cloth 30 wound around the pinch roll 10 and rotated together with the pinch roll 10 is strip 200. It is in close contact with the surface to increase the coefficient of friction is to prevent the strip 200 to slide.

That is, when the upper pinch roll 10 is rotated by the drive motor 56, the mesh cloth 30 is placed on the upper pinch roll 10 and the strip 200 to rotate together with the upper pinch roll 10. Therefore, the oil buried in the strip 200 is absorbed by the mesh cloth 30, and the strip 200 is not slipped by the surface friction force of the mesh cloth 30.

On the other hand, when the upper pinch roll 10 is completely lowered as described above and in close contact with the strip 200 placed on the lower pinch roll 12 to the moving frame 20 to the sensing piece 76 installed on the base 14 The installed sensing sensor 74 is in close proximity, so that the sensing sensor 74 detects the sensing piece 76 and this signal is applied to the controller.

The controller 90 receiving the detection signal operates the solenoid valve 72 installed in the air hose 60 to open the hose 60, and at the same time to the collecting plate 64 located under the tension roll 40. The driving motor 70 is installed.

Therefore, air is introduced into the hose 60, and the air is injected into the mesh cloth 30 through the nozzle 62 installed in the hose 60.

The oil of the strip 200 buried in the mesh cloth 30 during the feeding operation of the strip 200 by the sprayed air is removed from the mesh cloth 30 and falls on the collecting plate 64 under the mesh cloth 30. .

The collecting plate 64 is formed to be inclined toward the center portion, and the screw 68 is placed in the longitudinal direction at the central portion thereof. As described above, the oil dropped to the collecting plate 64 is collected at the central portion along the inclined surface and then the driving motor 70. It is sent to the pipe (66) installed on the bottom surface of the collecting plate (64) by the screw (68) rotated by).

Therefore, the oil separated from the mesh cloth 30 is collected in the drain container 82 through the pipe 66, and the oil collected in the drain container 82 is recycled.

On the other hand, when the moving frame 20 is raised by the operation of the cylinder 26 after the operation is finished, the detection sensor 74 of the moving frame 20 away from the sensing piece 76 of the base 14 Then, the drive motor 70 and the solenoid valve 72 is controlled by the controller 90 receiving this signal to stop the rotation of the screw 68 and air injection.

Wherein the mesh cloth 30 is maintained in tension by the elastic spring 46 installed between the guide member 42 and the support block 44, the support block 44, the tension roll 40 is installed The tension of the mesh cloth 30 hanging on the tension roll 40 is appropriately adjusted while sliding up and down along the guide rail 48 of the guide member 42.

In addition, in the case where the tension of the mesh cloth 30 is too high or too low, the operator may tighten or loosen the nut 52 fastened to the tip of the rod 50 protruding downward from the guide member 42. The tension of the four thousand (30) can be adjusted.

As described above, according to the strip slipping prevention device of the winding machine according to the present invention, the strips can be accurately transported without slipping, thereby preventing productivity degradation due to work delay, and the labor of having to insert corrugated cardboard by the worker one by one. It can reduce the risk of safety accidents as well as improve the yield.

Claims (4)

(Correction) Upper and lower pinch rolls for advancing the strip, friction means provided on the surface of the pinch rolls to increase the coefficient of friction, and the upper pinches for advancing the friction means in the same manner as the rotation of the pinch rolls. It is connected to the rotation axis of the roll includes a drive motor for driving the upper pinch roll, The friction means comprises a mesh cloth wound on the upper pinch roll, and a tension portion for imparting tension to the mesh cloth, wherein the tension portion is located between the upper pinch rolls and the tension roll to span the mesh cloth, and the upper pinch. A guide member fixed to a moving frame on which a roll is installed and having a guide rail formed in a vertical direction therein; a support block installed on a rotation shaft of the tension roll and moving along a guide rail of the guide member; An elastic spring installed between the members to elastically push the tension roll, and a rod attached to the lower portion of the support block, a thread formed on the surface, and a rod projecting out of the guide member through a hole formed in the bottom of the guide member; Strip slip prevention device of the winder comprising a nut fastened to the rod outside the member. According to claim 1, wherein the lower pinch roll is rotatably installed on the base fixed to the installation and the drive motor is connected to one rotation shaft, the upper pinch roll is supported by the moving frame is installed on the rotation shaft of both ends, The moving frame is inserted into the guide bar vertically installed on the base and is formed with a guide hole to move up and down and is coupled to the guide bar. The moving frame is moved up and down according to the driving of the cylinder by connecting the piston rod end of the cylinder to the moving frame. Strip slip prevention device of the winder characterized in that the structure. (delete) (Correction) The air spray hose according to claim 1 or 2, wherein the air spray hose is placed in the longitudinal direction of the tension roll on the mesh cloth, the air spray nozzles provided at regular intervals to the hose, and the air spray hose is installed under the mesh cloth. And a collecting plate for collecting oil removed by the oil collecting pipe, a pipe installed at the bottom of the collecting plate, a screw installed in the longitudinal direction at the bottom of the collecting plate, for introducing oil into the pipe, and a driving motor for rotating the screw. Strip slip prevention device of the winder, characterized in that it further comprises a collecting means for recovering the abrasive oil of the strip on the mesh cloth.