JPH018256Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a conveying device that is installed on the front and rear surfaces of a shear and conveys steel materials to the shear.

Some steel material conveying devices have the purpose of conveying the steel material using pinch rolls that pinch both sides of the steel material in the width direction, and sending the steel material to a shear for cutting the steel material while maintaining accurate positioning. In order to accommodate changes in the width of the steel material, normally in this type of conveying device, one of a pair of pinch rolls, which are placed facing each other, can move in the width direction of the steel material. . As shown in Fig. 1, an example of such a conveying device is that a steel material positioning device (not shown) is provided on the upstream side, and a steel material positioning device (not shown) is installed on the downstream side of the roller conveyor R through which the positioned steel material is transported. A pair of shears S for cutting both side edges of the steel material are disposed opposite to each other in the width direction of the steel material so as to be able to move toward and away from the steel material. Furthermore, on the entry and exit sides of the shear S, there is a stationary pinch roll main body 8 provided with a pinch roll 6 capable of pinching one side edge of the steel material, and a stationary pinch roll main body 8 that is in contact with the steel material in the width direction. Each pair is provided with a movable pinch roll main body 7, which is provided with a pinch roll 6 that can be freely separated and can pinch the other side edge of the steel material. Therefore, by moving the movable pinch roll main body 7 in the width direction according to the width of the steel material, each of the pair of pinch rolls 6 feeds the steel material to the shear S while always pinching both side edges of the steel material. , a pair of shear S at the same time
Shear S on the moving side pinch roll body side 7
The rollers also move together with the movable pinch roll main body 7 so as to cut both side edges of the steel material.

Further, a fixed beam 1 is spanned in a direction perpendicular to the conveying direction of the steel material on the entry side and the exit side between the stationary pinch roll main body 8 and the movable pinch roll main body 7, both of which are provided with the pinch rolls 6. . and,
A movable beam 2 is disposed between the fixed beams 1 in the conveying direction of the steel material, and an idle roller 4 is disposed on the movable beam 2. In such a device, the movable pinch roll body 7 and the movable beam 2
Therefore, as shown in FIG. 3, the moving side pinch roll main body 7 and the moving beam 2 must be connected by a chain 9, or as shown in FIG. A pinion 11 was attached to the frame of the beam 2, and a rack 10 was meshed with the pinion 11. However, when the traverse amount of the moving side pinch roll main body 7 becomes large, the connecting means shown in FIG.
is pulled by the chain 9. On the other hand, when the traverse amount becomes small, the moving side pinch roll main body 7 remains stationary until it comes into contact with the moving beam 2, and after the contact, the beam 2 moves into the moving side pinch roll main body 7. Therefore, the position of the moving beam 2 is not always constant. Furthermore, in the connecting means shown in FIG. 2, the position of the moving beam 2 always moves by half the stroke amount of the moving side pinch roll main body 7, but if it is desired to provide a plurality of moving beams 2, a space is required. The number of installations is limited due to the following. Therefore, when conveying steel materials or slit materials of different widths, the steel materials do not necessarily rest on the idle rollers 4, but rather on the pinch rolls 6.
The sheet was conveyed to the shear S with only one hand, and the shearing operation was carried out in the inclined shape, which caused problems such as having an adverse effect on the shearing accuracy (squareness).

The present invention has been made in view of the above-mentioned drawbacks, and an object of the present invention is to provide a steel conveying device that can reliably supply steel materials and slit materials of different widths to the shear S.

The configuration of the present invention to achieve such an object includes pinch roll bodies that can move toward and away from each other in the width direction of the steel material to be conveyed according to the width of the steel material, and each of the pinch roll bodies is rotatable. A steel material comprising: pinch rolls that are provided to pinch both side edges of the steel material; and a moving beam that is disposed between the pinch rolls in the steel material conveyance direction and is movable in the width direction of the steel material. In the conveyance device,
The moving beam is supported via a telescopic link lever connected between the pinch roll bodies.

Hereinafter, one embodiment of the present invention will be specifically described with reference to FIGS. 4 to 6. In addition, in these figures, the same parts as in the conventional example are given the same reference numerals for correspondence.

As shown in FIG. 4, a steel material positioning device (not shown) is provided on the upstream side, and one side edge of the steel material is located on the downstream side of the roller conveyor R, through which the positioned steel material is conveyed. a fixed-side pinch roll main body 8 provided with a pinch roll 6 capable of pinching the steel material; and a pinch roll facing the fixed side pinch roll main body 8 provided with a pinch roll 6 capable of pinching the other side edge of the steel material and disposed so as to be movable toward and away from the steel material in the width direction of the steel material. A moving side pinch roll main body 7 is provided. Therefore, by moving the movable pinch roll main body 7 in the width direction according to the width of the steel material, each of the pair of pinch rolls 6 feeds the steel material to the shear S while always pinching both side edges of the steel material. Further, a shear S for cutting the steel material in the width direction is provided in the middle of the roller conveyor R located on the downstream side in the conveying direction, and the steel material is cut here. Furthermore, fixed beams 1 are attached to the entry and exit sides of the moving side pinch roll main body 7 and fixed side pinch roll main body 8, on which the pinch rolls 6 are arranged, respectively. Three rows of moving beams 2 are spanned in parallel. On this moving beam 2, as shown in FIG.
is rotatably attached, and the distance between each moving beam 2 is selected as appropriate and does not necessarily have to be equal. A guide roller 5 that rolls on the fixed beam 1 is attached to the lower surface of the moving beam 2, so that the moving beam 2 can move on the fixed beam 1. The legs of each moving beam 2 are connected by a pantograph-shaped extendable link lever 3, as shown in FIG. 6A and 6B. Both ends of the link lever 3 are fixed to the movable pinch roll body 7 and the stationary pinch roll body 8, and from the state shown in FIG. When the roller 7 moves to the state shown in FIG. 6B where it approaches the stationary pinch roll main body 8, it expands and contracts in accordance with this movement. During this expansion and contraction, the moving beam 2 is moved while maintaining a constant interval, so that even if the width of the steel material changes, the idle roller 4 on the moving beam 2 always moves the steel material at a constant interval. Since the steel material can be supported, the steel material can be transported in a more stable supported state. Therefore, the steel material conveyed on the roller conveyor R is sent to the shear S and sheared while maintaining an accurately positioned state according to its width, achieving high shearing accuracy (squareness). It can be done.

The link lever does not have to be shaped like a pantograph, but may be made of expandable and retractable multi-pipe tubes, and the number of moving beams may be one or more than two rows. The opening/closing mechanism of the side pinch roll and fixed side pinch roll is made possible with a simple structure, and maintenance is easy and it can be provided at low cost. Also, during this opening and closing, the moving beam 2 follows and moves, so even if the width of the steel material changes, the steel material can always be supported and transported well.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the conventional example, Figs. 2 and 3 are side views taken along the line A-A, Fig. 4 is a plan view of an embodiment of the present invention, and Fig. 5 is a cross section taken along the line B-B. 6A and 6B are sectional views taken along the line C--C in FIG. 4, showing the operation. In the drawing, 2 is a moving beam, 3 is a link lever,
7 is a moving side pinch roll body, 8 is a fixed side pinch roll body, R is a roller conveyor, and S is a shear.

Claims (1)

[Scope of utility model registration request] Pinch roll bodies that can move toward and away from each other in the width direction of the steel material to be conveyed according to the width of the steel material, and each of the pinch roll bodies is rotatably provided and can pinch both side edges of the steel material. In a steel material conveyance device comprising pinch rolls and a moving beam disposed between the pinch rolls in the steel material conveying direction and movable in the width direction of the steel material, the moving beam is connected to the pinch roll main body. A conveying device for steel material, characterized in that it is supported via a telescopic link lever connected between the steel materials.