JPH05213U - Coil carrier - Google Patents

Abstract

(57) [Abstract] [Purpose] To increase the coil transfer speed of a three-stage coil transfer trolley composed of a parent trolley, a child trolley, a grandson trolley, and a V-shaped skid. [Structure] A coil fall prevention member 6 is erected on both ends in the width direction (Y direction) of a coil of a V-shaped skid 1 installed on a grandchild truck 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a coil carrier truck that carries a strip coil (hereinafter abbreviated as coil).

[0002]

[Prior Art]

 As shown in the perspective view of FIG. 2, the conventionally used three-stage coil transfer carriage is composed of a parent carriage 4, a slave carriage 3 and a grandchild carriage 2, and the traveling directions of the carriages intersect at right angles. Has become. Then, a coil to be conveyed is placed on the V-shaped skid 1 installed on the grandchild truck 2, and each truck can be moved to convey the coil to a predetermined position. Here, as shown in FIG. 2, the X direction indicates the diametrical direction of the coil, and the Y direction indicates the width direction of the coil, that is, the direction parallel to the axis of the V-shaped skid. It should be noted that the coil, which is the object to be transported, is simply placed on the V-shaped skid in order to form a three-stage coil transport cart because of the work process before and after, that is, the workability of loading and unloading the coil. It is customary to transport without fixing. Therefore, the sudden start and stop of the three-stage coil transport vehicle, especially the sudden start and stop in the Y direction, cause accidents such as the coil falling or falling.

Here, a typical transfer operation pattern of the three-stage coil transfer carriage will be described as follows. (See Fig. 4) (1) Start at constant acceleration (acceleration) (2) Constant speed running at constant line speed (3) Stop at constant deceleration (deceleration) That is, increase at constant acceleration However, when the vehicle starts, and reaches the line speed specified in the transportation plan, it will move to a constant speed at a constant line speed. Next, when approaching the target point, the vehicle decelerates at a constant deceleration and stops.

Since the V-shaped skid on which the coil is placed is arranged so as to sandwich the coil in the diametrical direction (X direction), even if a large acceleration is applied in the diametrical direction (X direction) of the coil. There is almost no danger of falling. However, since no member capable of supporting the coil is installed in the width direction of the coil (Y direction), there is a drawback that the coil may fall over if an excessive acceleration is applied. For coils of normal size and weight, the absolute value of the acceleration that can be tolerated in the width direction of the coil (Y direction) is 0.02 g (m / s ² ) or less. It must be controlled below the value. This is a major obstacle to increasing the coil transfer speed.

Here, the conveyance speed of the coil means the start in the diameter direction (X direction) of the coil and the width direction (Y direction) of the coil, the constant speed running at the line speed, the stop, and the direction by the turner. It refers to the transfer speed of the coil for transfer management including conversion.

[0006]

[Problems to be solved by the device]

 The present invention has been made in view of the above-mentioned circumstances, and a V-shaped skid is provided with a coil fall prevention member having a simple structure so that the V-shaped skid can start and stop more rapidly than before. The purpose of the present invention is to provide a three-stage coil transfer carriage that does not cause the coil to fall over even when subjected to a larger acceleration than before, and therefore can further increase the transfer speed of the coil.

[0007]

[Means for Solving the Problems]

 The present invention relates to a coil carrier truck comprising a parent carriage, a child carriage, and a grandchild carriage, and a V-shaped skid for mounting a coil to be transported on the grandchild carriage. A coil carrier is characterized in that coil fall prevention members are provided upright at both ends in the width direction (Y direction) of a coil placed on a V-shaped skid.

[0008]

[Action]

 As shown in FIG. 1, the three-stage coil carrier of the present invention has a coil fall prevention member 6 erected at both ends of the coil of the V-shaped skid 1 in the width direction (Y direction), so that a larger acceleration than the conventional one can be obtained. Even if it receives, the coil is received by the coil fall prevention member, and the coil does not fall. Therefore, the coil can be transported by starting and stopping more rapidly than before, and the transport speed of the coils of the three-stage coil transport vehicle can be further increased.

[0009]

【Example】

 FIG. 1 shows a perspective view of an embodiment of the present invention. That is, the fixed coil fall prevention members 6 were erected at four positions at both ends in the width direction (Y direction) of the coil of the V-shaped skid 1 installed on the grandson truck 2. The coil overturn preventing member 6 is made of a steel flat bar, and is fixed to the end surface of the V-shaped skid 1 by welding to receive the weight of the coil 5. The coil overturn preventing member 6 is not limited to a flat bar, but may be a round bar, an angle, or the like, but the height is preferably about the same as or smaller than the coil diameter in consideration of other work. FIG. 3 shows a line speed pattern in the width direction (Y direction) of the coil in which the coil does not tip over in the three-stage coil transporting vehicle in which the coil overturning prevention member 6 according to the present invention is installed. Similarly, FIG. 4 shows a line speed pattern in the width direction (Y direction) of the coil, which is the limit in which the coil does not tip over, of a conventional three-stage coil carrier without a coil overturning prevention member installed.

As is clear from FIGS. 3 and 4, the acceleration in the width direction (Y direction) of the coil received by the conventional three-stage coil carrier is suppressed to 0.02 g (m / s ² ) or less. However, in the case of the three-stage coil transfer carriage equipped with the coil fall prevention member 6 according to the present invention, the acceleration of the coil in the width direction (Y direction) reaches a value of 0.05 g (m / s ² ). Even though the coil does not fall, it is possible to transfer the coil at a much faster acceleration / deceleration rate. For this reason, even when the coils are conveyed at the same line speed V, when the three-stage coil conveying carriage according to the present invention is used, the time T ₁ required for conveying the coils is the same as that of the conventional coil fall prevention member. This is much shorter than the required time T ₂ when using a three-stage coil transfer cart without a coil, and the coil transfer speed can be significantly increased. Further, since the transfer speed of the three-stage coil transfer carriage is increased regardless of the width direction and the diameter direction of the coil, it is not necessary to change the direction of the coil with a turner, etc. It can contribute to speeding up.

[0011]

[Effect of the device]

 According to the three-stage coil transfer carriage equipped with the coil fall prevention member of the present invention, the coil does not fall even if it receives an acceleration more than twice that of the conventional one in the width direction of the coil (Y direction). Thus, the coil can be transported at the deceleration rate.

[Brief description of drawings]

FIG. 1 is a perspective view of a V-shaped skid provided with a coil fall prevention member according to the present invention.

FIG. 2 is a perspective view of a conventional three-stage coil transfer carriage.

FIG. 3 is a characteristic diagram showing a line velocity pattern in a width direction (Y direction) of a coil in which a coil of a three-stage coil carrier of the present invention does not fall.

FIG. 4 is a characteristic diagram showing a line velocity pattern in a width direction (Y direction) of a coil, which is a limit in which a coil of a conventional three-stage coil transfer carriage does not fall.

[Explanation of symbols]

 1 V-shaped skid 2 Son truck 3 Child truck 4 Parent truck 5 Coil 6 Coil fall prevention member

Claims (1)

[Claims for utility model registration] [Claim 1] Consists of a parent trolley, a child trolley, and a grandson trolley,
V for mounting a coil, which is an object to be transported, on the grandchild truck
In a coil carrier having a shape skid, coil fall prevention members are provided upright on both ends of the V-shaped skid in the width direction (Y direction) of the coil placed on the V-shaped skid. Coil carrier.