JPH06247417A - Coil cart coil fall prevention device - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent the deviation of the coil contact timing due to the difference in arm rotation direction and to prevent the tightening of the coil after both side arms contact the coil. [Structure] In a fall prevention device for carrying a wire rod coil by a coil carriage, a link mechanism that simultaneously operates the coil fall prevention arm with one hydraulic cylinder is used to prevent the coil from changing depending on the rotation direction of both side fall prevention arms. Automatic wire rod coil packing device with S-shaped ring arm and arm drive shaft connecting part with long holes to prevent deviation of contact timing and a relief circuit in the hydraulic circuit to prevent pressure from rising above the set pressure. Coil cart coil fall prevention device. [Effect] It is possible to apply a wire rod coil with a poor half-coil shape that is difficult to be self-supporting to an automatic packing line.
Even in the automatic packing of a wide range of wire rod coils, the coil does not fall over, and it is possible to operate extremely safely in terms of work.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil fall prevention device for a coil truck.

[0002]

2. Description of the Related Art Conventionally, a wire wound in a coil shape and bundled and bundled is temporarily stored in a warehouse or an inventory area after being hot-rolled, and then shipped to customers.
Wire rod coils that have been bound, weighed, etc. are susceptible to scratches and the like due to the contact between the coils, so when transporting within the factory or stacking them by sea by freight shipped from the factory. During land transportation by car or car, wire flaws during cargo handling, product flaws during stacking, scratches, etc. may occur. Particularly in recent years, as the quality of products becomes higher, surface flaws and the like during transportation have come to be considered to be a problem, and for that reason, packaging has become necessary. As a countermeasure, despite the heavy work such as preparation of materials, winding, folding, and bundling of the wire rod in order to perform the packing work, the packing work of the wire coil is actually done manually. Is.

[0003]

For this reason, the inventors have already developed a device for automatically bundling and packing wire rod coils continuously, but the wire rod coil is used as a coil carrier. There is a problem of falling due to the movement of. That is, since the wire rod coil whose shape is unstable is carried on the coil carriage, the coil falls. Therefore, we developed a coil fall prevention device in which both side arms touch the coil at the same time as a device for coil fall prevention.However, when the both side fall prevention arms are in the process of opening and closing, A difference in the coil contact timing occurs due to the difference. Also, since the fall actuating arm actuating actuator is a hydraulic cylinder, there is a risk that the coils will be tightened after both side arms come into contact with the coil and the wire will be broken, or the coil shape will be damaged.
There is a problem that it must be prevented.

[0004]

As a result of intensive development, the inventors of the present invention who should solve the above problems can prevent the deviation of the coil contact timing due to the difference in the arm rotation direction and can prevent the side arms from moving. The purpose is to prevent tightening of the coil after contact with the coil. The gist of the invention is (1) in a coil carriage for carrying and moving and carrying coils, two arms facing each other in the coil radial direction and tilting in an arc shape with one end of the lower part as a fulcrum, and a coil at the tip of the arm. A coil comprising an S-shaped link mechanism that connects the arm to the cushioning material provided in the contact portion, a drive device that tilts the arm via the link mechanism, and a contact pressure control mechanism of the drive device. A trolley coil fall prevention device. (2) In the coil overturn prevention device of (1), there is provided a coil overturn prevention device for a coil truck, wherein an elongated hole is provided in a connecting portion between the arm and the S-shaped link mechanism.

The present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic view showing a state in which an arm of a coil fall prevention device according to the present invention is opened. FIG. 2 is a schematic view showing a state in which the arm of the coil fall prevention device according to the present invention is closed. Further, FIG. 3 is a side view of the coil fall prevention device according to the present invention. As shown in FIGS. 1 to 3, a coil carriage 2 having a cradle roll 9 capable of rotating with the wire rod coil 1 placed thereon can be moved laterally orthogonal to the axial direction (width direction) of the wire rod coil 1. The seat mounting carriage (not shown) is installed on both sides of the coil carriage 2 in the axial direction of the wire rod coil, and the carriage 2 is sandwiched within the moving range of the coil carriage 2 separately from the seat mounting carriages on both sides. A sheet folding device (not shown) is arranged so that the front and rear can come close to each other, and a sheet feeding device (not shown) is provided at the front surface of the seat mounting carriage, that is, when the coil carriage 2 is at the original position. Has been placed. Then, the wire rod coil is placed between the sheet members placed on the cradle carriage 2, and the cradle roll driving device causes the cradle roll to rotate to rotate the wire rod coil 1 and the sheet member at the same time. The sheet is wound around the wire rod coil in the circumferential direction.

[0006]

In such a coil fall prevention device, as shown in FIGS. 1, 2 and 3, two fall prevention arms 4 provided on the coil carriage 2 connect the both ends of the wire rod coil 1 to the ring mechanism 6. With the hydraulic cylinder 3 coming out,
The fall prevention arm 4 operates in the closing direction and is closed. As a result, the wire rod coil 1 shown in FIGS. 1 and 2 is in contact with the radial direction. An elastic roll 5 is provided at the coil contact portion at the tip of the arm, and the roll 5 bites into the wire rod coil to prevent the wire rod coil 1 from falling in the height direction due to the frictional force. Further, the tipping prevention arm 4 must be in contact with both sides of the wire rod coil 1 in the radial direction at the same time. If one side is delayed, the wire rod coil 1 will fall in the radial direction.

Therefore, the connecting pin 8 between the S-shaped ring 6 and the fall prevention arm clevis 7 is a connection portion for causing the both side fall prevention arms 4 to perform a closing operation by the hydraulic cylinder 3 coming out. . By making the fall prevention arm clevis 7 into a long hole, both sides of the fall prevention arm 4 can simultaneously contact the radial direction of the wire rod coil 1. The connecting pin 8 enables the above operation by moving in the oblong hole of the clevis 7 when the fall prevention arm 4 is in the closing operation. Further, this arm is provided with a hydraulic circuit that is always in contact with both ends of the coil regardless of variations in the coil diameter. In other words, since the fall prevention arm operation actuator is a hydraulic cylinder, the coils are tightened after both side arms come into contact with the coils, so that it is prevented, the coil shape varies, and the contact timing of the arms deviates. As described above, a relief circuit is provided in the hydraulic circuit so that the pressure does not rise above the set pressure.

By thus forming the S-shaped ring and the arm drive shaft connecting portion in the elongated holes, it is possible to prevent the contact timing from deviating, and to provide a relief circuit in the hydraulic circuit so that the pressure exceeds the set pressure. It was possible to prevent the coil from being tightened after both side arms came into contact with the coil by preventing the coil from rising.

[0009]

As described above, according to the present invention, a wire coil having a defective half coil shape of a wire which is difficult to be self-supported can also be applied to an automatic packing line, and a coil fall can occur even in a wide range of wire coil automatic packing. It is extremely advantageous industrially that the operation can be performed extremely safely without work.

[Brief description of drawings]

FIG. 1 is a schematic view showing a state in which an arm of a coil fall prevention device according to the present invention is opened.

FIG. 2 is a schematic view showing a state in which the arm of the coil fall prevention device according to the present invention is closed.

FIG. 3 is a side view of the coil fall prevention device according to the present invention.

[Explanation of symbols]

 1 wire rod coil 2 coil trolley 3 hydraulic cylinder 4 fall prevention arm 5 roll 6 S-shaped ring 7 fall prevention arm clevis 8 connection pin 9 cradle roll

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukio Imai 1421-5 Hitomi, Kimitsu-shi, Chiba Prefecture (72) Inventor, Kawa Shibata, 1 Kimitsu, Kimitsu-shi, Chiba Takada Works Co., Ltd. Kimitsu Branch Office (72) Inventor Seiichi Setoyama 1 Kimitsu, Kimitsu-shi, Chiba In-house Kimitsu Co., Ltd. Kimitsu Branch (72) Inventor Toshio Kurasawa 1 Kimitsu, Kimitsu-shi, Chiba In-house Kimitsu Co., Ltd. (72) Inventor Toshio Yamada 1-1 Takada Industry Co., Ltd., Tsukiji-cho, Yawatanishi-ku, Kitakyushu, Fukuoka Prefecture (72) Inventor Yoshiki Kihara 1-1, Tsukiji-cho, Yawatanishi-ku, Kitakyushu, Kitakyushu, Fukuoka Prefecture

Claims (2)

[Claims] 1. In a coil carriage for loading and transporting coils, two arms facing each other in the coil radial direction and tilting in an arc shape with one end of a lower portion as a fulcrum, and a buffer provided at a coil contact portion at the tip of the arm. A coil overturn prevention device for a coil truck, comprising: an S-shaped link mechanism that connects a material and the arm, a drive device that tilts the arm via the link mechanism, and a contact pressure control mechanism of the drive device. 2. The coil overturn prevention device according to claim 1, wherein an elongated hole is provided in a connecting portion between the arm and the S-shaped link mechanism.