JPH05278717A - Device for folding sheet for packaging wire rod coil - Google Patents

Abstract

PURPOSE:To provide a device for automatically conducting packaging work of covering the entire surface of a wire rod coil. CONSTITUTION:A wire rod coil 1 set on a stand 11 is packaged in its peripheral direction with a packaging sheet, and cylindrical extras of the sheet are formed at both ends of the coil. A truck 6 movable forward and backward in the axial direction of the coil is so arranged as to be opposed to the stand 11. Many radial swing bars 4 capable of being extended and retracted and being tilted are provided on the front face of the truck 6, and these swing bars radially the extras of the sheet and fold the drawn extras drawn into the axial hollow part of the wire rod coil 1 with force uniform in a peripheral direction, whereby the inner and outer surfaces and end faces of the wire rod coil are wrapped in a good shape.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet folding apparatus for packing wire rod coils.

[0002]

2. Description of the Related Art Coiled wire rods have been transported as hot rolled, but in recent years, surface defects and rust during transportation have become a problem due to the trend toward higher quality products. It became necessary to pack. As a method of packing the wire rod coil wound into a coil, Japanese Patent Publication No. 62-1
As disclosed in Japanese Patent No. 8427, there is known a method of covering the outer surface and end surface of a wire rod coil by fixing a rectangular synthetic fiber cloth to the surface of the wire rod coil using a fastener and a string. In addition, as a device
No. 90382 discloses a device for wrapping a band-shaped packaging material (bandage) in a gaiter-wrapping manner, and as disclosed in Japanese Utility Model Publication No. 2-108807, the bag is opened by a bag opening machine. 2. Description of the Related Art There is known a device in which a coil is inserted into a bag-shaped packing material to cover the surface and end surface of a wire coil.

[0003]

[Problems to be Solved by the Invention] Japanese Patent Publication No. Sho 62-1842
According to the method disclosed in Japanese Patent Publication No. 7, a synthetic fiber cloth must be prepared according to the dimensions of the wire rod coil before packing, and the cloth is covered with the fastener and the cord or rope. However, there is a problem in that the work must be done manually, and the coating itself cannot be said to be strong, and the inner peripheral surface of the wire coil cannot be coated. Further, in the method disclosed in Japanese Patent Publication No. 52-90382, a band-shaped packaging material (bandage) serves as a buffer for the inner and outer surfaces and end surfaces of the wire coil, but from the viewpoint of preventing moisture from entering rainwater during transportation and preventing rust. Then, the seam of the band-shaped packaging material could not be completely sealed, which was a problem. In the device disclosed in Japanese Utility Model Publication No. 2-108807, a bag-shaped packing material matching the wire coil dimensions must be prepared before packing, and the wire coil is inserted into the opened bag material. Since it is necessary, the material must be larger than the wire rod coil diameter, the material cost will increase, the packing tare will not be strong, and the wire coil insertion and handling mechanism will be required, which will complicate the device and increase the equipment cost. There was a point.

[0004]

The present invention advantageously solves the above-mentioned problems of the prior art, and the gist thereof is as follows.
Place the wire coil on the mount and face the mount,
A foldable seat for folding a wire rod coil, which comprises a trolley installed so as to be able to move forward and backward with respect to the axis of the wire rod coil, and a large number of radial swing bars that can be tilted through a link mechanism are provided on the front face of the trolley. In the apparatus, the wire bar coil packing sheet folding apparatus is characterized in that the swing bar is provided so as to be capable of expanding and contracting. It is preferable to provide a roundness at the tip of the swing bar.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a side view illustrating the present invention, FIG. 2 (A) is an enlarged view of a retaining ring holding device used in the present invention, and FIG. 2 (B) is its XX arrow view.

As shown in FIGS. 1 and 2, the present invention comprises a pedestal 11 on which the wire coil 1 is placed, and a trolley 6 which is installed facing the gantry 11 so as to be able to move forward and backward. Is provided with a radial swing bar 4 which can be tilted in the direction of arrow 21 via the link mechanism 20 and is expandable and contractable in the direction of arrow 22. The gantry 11 may be a pair of cradle rolls, and the carriage 6 is preferably provided so as to travel on a rail 7 laid in a direction facing the gantry 11. 6A and 6B are wheels, 10 is a motor for driving the wheel 6A to move the carriage 6 forward and backward, and 6C is a drive chain. Further, the sheet guide 8 provided close to the gantry 11 is provided to prevent the packing sheet from hanging downward. The swing bar 4 is installed so as to be tiltable via a swing joint 3 on a base plate 2 whose rear end is fixed to the front surface of a carriage 6. A plurality of swing joints 3 are provided on the base plate 2 at equal intervals in a radial pattern, the number of which is equal to the number of swing bars 4.

A through hole 2A is formed in the center of the base plate 2.
A sliding bar 5 is provided on the carriage 6 to slide back and forth through the through hole 2A. Reference numeral 51 is a cylinder for moving the sliding bar 5 forward and backward, and 53 is a sliding bar 5
It is a sliding block fixed to. The sliding block 53 has the same number of swing joints 5 as the swing bar 4 on the outer periphery thereof.
The link mechanism 20 is configured by connecting the rod 2 and the swing joint 41 provided on the swing bar 4 with a rod 54.

Each swing bar can change its length by the cylinder 4A and has a sensor for detecting the force received from the packing sheet. The sliding block 53 penetrates the center of the sliding block 47 so that the sliding rod 47 moves forward and backward. The retaining ring fixing device 9 is installed at the tip end 55 of the sliding rod 47 via the support block 42. ing. The snap ring fixing device 9 is provided so as to be rotatable by 90 ° in the direction orthogonal to the length direction of the sliding rod 47 via the pin 43, and the rotation is performed by the pin 46 at the tip portion 55 of the rod. It is performed by the cylinder 44 provided.

Reference numerals 31A and 31B are bases, and two bases 31A and 31B are installed so as to face each other.
31B is provided with two retaining ring support plates each having a groove at the tip thereof, a total of four retaining ring support plates 40-1, 40-2, 40-3, 40-4 at equal intervals. The bases 31A and 31B are provided with retaining ring fixing portions 30A and 30B shown in FIG.
Each of the retaining ring fixing portions 30A and 30B is provided with a hook-shaped bracket 35 at the tip thereof so as to be rotatable via a pin 34. Reference numeral 33 is a cylinder for rotating the bracket 35, 32 is a pin, 60 is a snap ring around which wire is tightly wound, and is, for example, a ring-shaped steel wire whose ends are not fixed, and is held by the bracket 35.

FIG. 4 is a sectional view for explaining the packing of the wire rod coil by the device of the present invention. FIG. 4A shows a state in which the outer periphery of the wire rod coil 1 is covered with a packing sheet 70. The sheet 70 is placed on a pedestal, the wire rod coil 1 is placed on the seat 70, and the sheet 70 is wound around the outer periphery. When the sheet is in a wound state and the cradle is a cradle roll, the sheet 70 can be wound around the wire coil 1 while rotating the cradle roll.

FIG. 4B shows a state in which the bogie is moved forward while the swing bar 4 is open and the swing bars are simultaneously rotated in the direction of arrow 21A to squeeze the end portion of the seat 70, that is, a state of focusing.

In FIG. 4C, the bogie is advanced in the state of FIG. 4B, the end of the seat 70 is pushed into the hollow portion of the wire rod coil 1 by using the tip of the swing bar 4, and the inner peripheral surface of the wire rod coil 1 is covered. The pushed state is shown. At this time, each swing bar detects the force received from the packing sheet and adjusts its length so that the force is even in the circumferential direction of the wire rod coil.
Changed by A. A spring may be used in place of the cylinder 4A and the force detection sensor to provide a telescopic mechanism that obtains a uniform force. As a result, it is possible to prevent the sheet from being damaged and to perform a smooth pushing-in operation, and further to obtain a good packing state in which the packing sheet is closely attached to the wire coil inner hole.

FIG. 4D shows a state in which the snap ring 60 held by the snap ring holding device is removed and fixed to the inner peripheral surface of the wire rod coil. In order to achieve this state, in the state of FIG. 4C, the cylinder 44 is operated to rotate the retaining ring fixing device 9 by 90 °, and then the bracket 33 is moved by the cylinder 33 as shown in FIG.
By rotating the retaining ring 60 like the reference numeral 35A to release the restraint of the retaining ring 60 by the bracket 35, the retaining ring such as a steel wire is fixed by the restoring force of its own elasticity.

FIG. 4E shows a state in which the operations shown in FIGS. 4A to 4D are performed on the other end face, that is, the packing shape of the wire rod coil 1 which has been packed. To obtain this state,
After completing the steps from to D, the carriage 6 may be moved to the opposite side and the same operation may be repeated, or the carriage may be arranged in advance on both sides of the gantry. The tip of the swing bar is preferably rounded in order to smoothly perform the pushing operation without damaging the seat in the steps of FIGS. 4B and 4C. In addition, depending on the length of the seat and the winding state around the wire rod coil, the seat may be sandwiched between the swing bar and the wire rod coil, which may make the pushing operation difficult. You should keep it.

[0015]

As described above, according to the present invention, the work of covering the wire rod coil with the sheet can be automated, which is not only advantageous in terms of labor saving but also leads to the safety of the work. Further, there is a remarkable effect that all of the outer circumference, end surface and inner circumference of the wire rod coil can be covered.

[Brief description of drawings]

FIG. 1 shows an example of the device of the present invention.

FIG. 2 (A) is an enlarged view of a retaining ring holding device of the device of the present invention. (B) It is a XX arrow line view of FIG. 2A.

FIG. 3 is an enlarged view of a retaining ring fixing portion.

FIG. 4 is a sectional view for explaining the packing of the wire rod coil by the device of the present invention.

[Explanation of symbols]

 1 wire rod coil 2 base plate 2A through hole 3 swing joint 4 swing bar 4A cylinder 5 swing bar 6 bogie 6A, 6B wheel 6C drive chain 7 rail 8 seat guide 9 snap ring fixing device 10 motor 11 mount 20 link mechanism 30A, 30B snap ring fixing part 31A, 31B base 32 pin 33 cylinder 34 pin 35 bracket 40-1 to 4 snap ring support block 41 swing joint 42 support block 43 pin 44 cylinder 45, 46 pin 47 sliding rod 51 cylinder 52 sliding Joint 53 Sliding block 54 Rod 55 Tip part 60 Snap ring 70 Packing sheet

Front Page Continuation (72) Inventor Yukio Imai 1421-5 Hitomi, Kimitsu, Chiba Prefecture (72) Masato Kimura 1 Kimitsu, Kimitsu City, Chiba Nippon Steel Corporation Kimitsu Works Ltd.

Claims (2)

[Claims] 1. A gantry on which the wire rod coil is mounted, and a trolley installed opposite to the gantry so as to be able to move forward and backward with respect to the axis of the wire rod coil. The trolley has a link mechanism on its front surface. In a wire coil packing sheet folding device provided with a large number of radial swing bars that can be tilted through
A sheet folding device for packing a wire rod coil, wherein the swing bar is provided so as to be expandable and contractible. 2. The sheet folding device for packing a wire coil according to claim 1, wherein the swing bar has a rounded tip.