JPH0328964Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an apparatus for inverting a rectangular steel plate such as a small-sized rectangular plate for taking a thick steel plate test material.

[Conventional technology]

Conventionally, as this type of reversing device, there are ones that are miniaturized thick steel plate reversing machines, or those that are sandwiched between two reversible bifurcated structures as seen in Japanese Patent Publication No. 51-8388.

In addition to these conventional devices, the sloped surface of the claw with a triangular front shape, which is advanced by a cylinder, sinks into the material while lifting one side of the material to be inverted. There is a reversing device in which the material to be reversed is lifted up at an angle of 90 degrees or more, contacts an auxiliary roller provided on the opposite side, and slides down, thereby reversing the material. .

[Problem that the invention attempts to solve]

However, the above conventional example not only has a complicated structure and high manufacturing cost, but also has problems in operation and maintenance.

Furthermore, in the above-mentioned reversing device having a triangular claw in front, the claw is advanced by a cylinder and the propulsive force lifts the material to be reversed. If the propulsive force is smaller than the frictional force with the material to be reversed, the reversal cannot be performed.On the other hand, if the claw part cannot penetrate, only the claw part will rotate at the position where it contacts the material to be reversed and is stopped.
The material itself may not be able to be turned over, and due to its function, the cylinder's capacity is often not fully utilized. For example, if the cylinder's propulsion force is
251Kgf/cm ² and the weight of one sheet of material to be reversed is 200
Anything over Kg cannot be reversed, and in short, reliable reversal is impossible. Therefore, in this case, two workers performed the reversing work from both sides using tools such as hand fishing rods, but this posed a safety problem.

Furthermore, the impact when the material to be turned and the claws come into contact is severe, and the frictional resistance when the material to be turned over slides on the claws is large, resulting in considerable damage to the claws. Ta.

The present invention was developed to solve the above-mentioned problems, and is capable of reliably inverting the material to be inverted according to the capacity of the cylinder, without damaging the equipment due to smooth inversion operation, and requiring less manual labor. The purpose of the present invention is to provide a steel plate reversing device that is safe and improves work efficiency.

[Means for solving problems]

In order to solve the above problems, in the present invention, the rear part of the cylinder has a cylinder rod that advances and retreats at a position higher than the top surface of the roller conveyor, on the cylinder support shaft of the mounting base provided on the outside of one side of the roller conveyor. The cylinder rod is rotatably supported in a direction orthogonal to the flow direction of the roller conveyor, and two or more support arms are provided at the tip of the cylinder rod via a connecting plate whose lower side does not contact the upper surface of the roller conveyor. , a reversing claw portion whose part that contacts the material to be reversed is formed with an inclined surface is rotatably provided at the tip of each of the support arms, and the material to be reversed is provided at the side end of the roller conveyor on the opposite side thereof. In a steel plate reversing device, which is provided with a stopper, and an auxiliary roller having a rotation axis in the same direction as the flow direction of the roller conveyor is provided at a required height above the stopper, the inclined surface of the reversing claw portion is vertically The reversing claw is formed in an arc shape across the arc, and a plurality of rotating members are provided on the same arc-shaped surface, and the reversing claw has a height such that the lower tip of the reversing claw is located below the upper surface of the roller conveyor. Two or more guides are provided in the gap between the roller conveyors.

[Effect]

In the reversing device according to the present invention, since the reversing claw member has an arc-shaped inclined surface and a plurality of rotating members, the reversing claw member smoothly slips into the lower part of the material to be reversed.
Further, since the frictional resistance is small at the contact portion with the material to be reversed, the material to be reversed can be smoothly and reliably reversed.

〔Example〕

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

FIG. 1 is an overall perspective view of the present invention, FIG. 2 is a front view including a partial sectional view of the present invention, and FIG. 3 is a diagram showing the detailed structure of the reversing claw.

First, in FIG. 1 and FIG. 2, the reversing device 1 includes a reversing claw part 2 for reversing the material to be reversed, a claw part support shaft 3 for rotatably supporting the reversing claw part 2, and a reversing claw part 2 for reversing the material to be reversed. Cylinder 4 for advancing and retracting the claw part 2
It is composed of etc.

5 is a roller conveyor, and the material to be reversed a is conveyed on conveyance rollers 6 of the roller conveyor 5. The reversing device 1 is disposed in a direction perpendicular to the roller conveyor 5.

That is, 4 is a cylinder, and the rear part of the cylinder 4 is rotatably supported on a cylinder support shaft 8 of a mounting base 7. 9 is a cylinder rod;
A connecting plate 10 is attached to its tip. The connecting plate 10 is formed over the length of several pitches of the conveying roller 6, and two guide rods 11 are provided extending parallel to the cylinder rod 9 on both sides of the cylinder rod 9 on the cylinder 4 side. However, on the opposite side, three support arms 12 for supporting the reversing claw portion 2 are protruded in the illustrated embodiment. The intermediate portion of the guide rod 11 attached to the connecting plate 10 is inserted into a linear bushing etc. fitted to the vertical member of the L-shaped support base 13, so that the guide rod 11 can be freely moved in accordance with the movement of the cylinder rod 9. I'm trying to move.

The support stand 13 is supported by known means on a substrate (not shown) so that the guide rod 11 matches the cylinder 4 and can swing vertically.

In the illustrated embodiment, the horizontal member of the support stand 13 is extended toward the cylinder support shaft 8 side, and its extended end is pivotally supported on the axis of the cylinder support shaft 8 on a plane. Further, the support arm 12 is provided in the same direction as the axial direction of the conveyance roller 6, and at a position that coincides with the gaps 14, 14 of the conveyance rollers 6, 6, . . . . Further, the reversing claw part 2 is rotatably attached to the support arm 12 via a claw part support shaft 3.

The reversing claw part 2 has an arc-shaped inclined surface (hereinafter referred to as
15 (referred to as an arcuate surface). Further, the tip portion 16 of the reversing claw portion 2 is formed to be located below the claw portion support shaft 3. Further, the arcuate surface 15 is provided with a large number of rotating members 17 that rotate in the vertical direction of the surface. This rotating member 17 may be, for example, a chain roller or the like. As shown in FIG. 3, the rotating member 17 has grooves 1 extending in the vertical direction of the arcuate surface 15 so as to be able to withstand the impact load of the material a to be turned over.
8 is dug, and a large number of rotary members 17 are arranged in the groove 18, and are installed in a state where about 2 to 3 mm of the rotary member 17 is exposed from the arcuate lift 15. That is, the shaft 19 of the rotating member 17 is fixed to the side wall of the groove 18, so that the rotating member 17 slightly exposed from the arcuate surface 15 comes into contact with the material to be reversed a and can rotate freely.

Furthermore, a guide 20 is provided in the gap 14 between the conveyance rollers 6 to guide the reversing claw part 2 into the roller conveyor 5 when the reversing claw part 2 moves back and forth. When the bottom section of the reversing claw part 2 is convex, the guide 20 has a concave portion that contacts the reversing claw part 2 to ensure smooth and reliable engagement with the reversing claw part 2. The mounting height of the guide 20 is such that the tip 16 of the reversing claw part 2 is located below the upper surface of the conveyance roller 6, and the tip 16 is located at a position lower than the top surface of the conveyor roller 6. It is designed so that it does not come into contact with material a.

Further, a stopper 21 is provided on the opposite side of the roller conveyor 5 to the reversing device 1 for locking the material a to be reversed pushed by the reversing claw part 2, and the upper part of the stopper 21 is Furthermore, a rotatable auxiliary roller 22 is provided. The axis of the auxiliary roller 22 is in the same direction as the flow direction of the roller conveyor 5, and the height is such that the largest size material a does not fall out of the roller conveyor 5 after contacting the auxiliary roller 22. There is.

Next, the manner of use of the reversing device having the above configuration will be explained based on FIG. 4.

First, when the material a to be reversed, which is conveyed on the roller conveyor 5 in an upside-down state where the serial number cannot be confirmed, reaches the position of the reversing device 1, the material to be reversed is temporarily stopped. Then, the cylinder 4 is driven to extend the cylinder rod 9, and the reversing claw portion 2 is advanced along the gap 14 of the conveying roller 6 while being guided by the guide 20 (FIG. 4A).

Since the tip 16 of the reversing claw 2 moves at a lower position than the upper surface of the conveyance roller 6, the tip 16
6 reliably slips into the lower part of the material to be reversed a without contacting the material to be reversed (FIG. 4B).

Next, when the reversing claw portion 2 is further advanced, the front end of the material to be reversed a is stopped by the stopper 21 (FIG. 4C).

The rear side of the material to be turned a is lifted while rolling in contact with the rotating member 17 slightly exposed from the arcuate surface 15, and it slides up along the arcuate surface 15 with low frictional resistance, and a large number of rotating members 17 are arranged. As a result, the material to be reversed a is smoothly lifted up, and the tip 16 of the reversing claw portion 2 touches the stopper 21.
(Fig. 4D).

Furthermore, when the cylinder rod 9 is extended, the claw support shaft 3 is located above the tip 16, so the cylinder 4 rotates about the cylinder support shaft 8 in the direction of lifting the cylinder rod 9. The pushed reversing claw part 2 tilts clockwise in the drawing with the tip part 16 as a fulcrum, and the upper end side of the reversing claw part 2 further raises the rear side of the material to be reversed and assists it. It comes into contact with the roller 22 (FIG. 4E).

Here, when the cylinder rod 9 is further extended and the reversing claw part 2 is tilted, the material to be reversed a uses the contact part with the auxiliary roller 22 as a fulcrum, and the rear side of the reversing claw part 2 is tilted. While rotating in the direction pushed toward the upper end side, the front side of the material to be reversed a pushes back the front end 16 side of the reversing claw 2.
The leading edge of the material a to be reversed slides on the conveyance roller 6 toward the cylinder 4 side. At that time, the reversing claw part 2
is further tilted, and the claw support shaft 3 is lifted upward using its tip 16 as a fulcrum, and the cylinder 4 rotates about the cylinder support shaft 8 by the amount of displacement. As a result, the material to be inverted a is tilted by more than 90 degrees, and the positions of its leading edge and trailing edge are reversed (FIG. 4F).

When the cylinder rod 9 is shortened after the material to be inverted a is tilted by more than 90 degrees, the inverting claw part 2 moves back while tilting counterclockwise in the drawing with its tip as a fulcrum. The material a to be reversed released from the restraint of the reversing claw part 2 is on the roller conveyor 5 on the front side and on the auxiliary roller 22 on the rear side, and is in an unstable inclined state. The side portion begins to slide on the roller conveyor 5 due to the weight of the material a to be reversed (FIG. 4G).

As a result, the material a to be reversed changes from an inclined state to a horizontal state and is placed on the conveying roller 6, and the reversing operation is completed.

With the above structure and method, using a cylinder with the same propulsion force of 521Kgf/ ^cm2 as a conventional cylinder, a cylinder with a plate thickness of 4.5 to 40 mm, a plate width of 100 to 450 mm, a length of 2000 to 4000 mm, and a unit weight of 400 kg or less. Material to be reversed a
could be reliably reversed, furthermore, damage to the arcuate surface 15 was significantly reduced, the reversal time was also significantly reduced, and work efficiency was improved.

In addition, as shown in the above embodiment, the reversing claw part 2
It is sufficient to provide three cylinders, but depending on the size of the material to be reversed, two cylinders can be installed if it is short, or three or more cylinders can be installed if it is long, and if necessary, it is natural to install additional cylinders 4. It is.

[Effect of idea]

The present invention provides the following effects.

The material to be reversed can be reliably reversed.

As long as the material to be reversed is the same, a cylinder with a small propulsion force is sufficient, so the cost of the device is reduced.

Since there is no impact or large frictional resistance when the material to be reversed and the reversing claws come into contact, the reversing claws are not damaged.

Unlike conventional methods, this method does not require any human intervention, so it is safe and work efficiency is significantly increased.

[Brief explanation of drawings]

Fig. 1 is an overall perspective view of one embodiment of the present invention;
The figure is a front view including a partial sectional view, FIG. 3 is a cross-sectional front view of the reversing claw part, and FIG. 4 is an explanatory view of the use of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Reversing device, 2... Reversing claw part, 3... Claw part support shaft, 4... Cylinder, 5... Roller conveyor, 6... Conveyance roller, 7... Mounting stand, 8
... Cylinder support shaft, 9 ... Cylinder rod, 10 ... Connection plate, 11 ... Guide rod, 1
2... Support arm, 13... Support stand, 14... Gap, 15... Arc-shaped surface, 16... Tip, 17...
Rotating member, 18... groove, 19... shaft, 20... guide, 21... stopper, 22... auxiliary roller, a... material to be reversed.

Claims (1)

[Scope of utility model registration request] The roller conveyor 5 is attached to the cylinder support shaft 8 of the mounting base 7 provided on one side of the roller conveyor 5.
The rear part of the cylinder 4, which has a cylinder rod 9 that moves forward and backward at a position higher than the upper surface, is rotatably supported in a direction orthogonal to the flow direction of the roller conveyor 5, and the lower side is attached to the tip of the cylinder rod 9. Two or more support arms 12 are provided via a connecting plate 10 of a height that does not contact the upper surface of the roller conveyor 5, and the tip of each support arm 12 is formed with an inclined surface at a portion that contacts the material to be inverted a. A stopper 21 for the material to be reversed a is provided at the side end of the roller conveyor 5 on the opposite side thereof, and the roller conveyor 5 is placed at a required height above the stopper 21. In the steel plate reversing device 1, which is provided with an auxiliary roller 22 having a rotation axis in the same direction as the flow direction, the inclined surface of the reversing claw portion 2 is formed in an arc shape in the vertical direction, and the same arc-shaped surface 15 is formed. A plurality of rotating members 17 are provided on the top of the reversing claw 2, and the guide 20 of the reversing claw 2 is set at a height such that the lower tip 16 of the reversing claw 2 is located below the upper surface of the roller conveyor 5. A steel plate reversing device characterized in that two or more are provided in the gap 14 of the conveyor 5.