JPH04217532A - Inhibition of double lifting of piled thin plate - Google Patents

Abstract

PURPOSE:To surely lifting a thin plate one by one when accumulated thin plates are lifted in order from the uppermost one. CONSTITUTION:The upper surface of an uppermost thin plate S accumulated on a storing box B, is sucked and held by a vacuum sucking pad 14 of a lifting device 1, and the thin plate S is lifted thereby. While the thin plate S is lifted, a cylinder 16 is driven vertically, and by striking the thin plate S by a striking arm 18 mounted on the point, another thin plate S' adhered to the thin plate S is discriminated therefrom, and is thus dropped.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a method for preventing the hanging of two sheets of stacked thin steel sheets, in particular, when lifting and taking out thin sheets such as cut sheets of stacked cold-rolled thin steel sheets one by one starting from the topmost sheet, This invention relates to a method for preventing hanging of two stacked thin plates, which can reliably prevent lifting of two or more thin plates.

0002

[Prior Art] It is not possible to store a large number of thin plates cut to a predetermined size in a stacked state, and to use the thin plates by sequentially taking out the thin plates one by one starting from the top layer as needed. , is carried out on a daily basis.

For example, in a steelworks, when handling sample plates (thin plates) such as test materials and test pieces of manufactured cold-rolled thin steel plates, the stacked sample plates are separated and handled one by one. A variety of work is being carried out. When these operations are automated using equipment, the mainstream method for lifting thin plates is to use vacuum suction pads. With this vacuum suction pad, if the plates are large and unlubricated, gaps will easily form between the plates due to deformation of the thin plates, so it is relatively easy to separate them one by one and lift them up. There is a problem with boards, oiled boards, etc., where two or more boards are lifted together.

[0004] As described above, methods for preventing two or more thin plates from being lifted at the same time when lifting them using suction pads are disclosed in Japanese Patent Application Laid-Open No. 47-32571 and Japanese Patent Application Laid-open No. 49-26.
970, JP 54-97969, JP 58-216
846, Utility Model No. 49-33574, Utility Model No. 50-117
There are many methods, as shown in Japanese Utility Model No. 580, Utility Model Publication No. 54-10701, etc.

[0005] In addition, there are other methods, such as applying vibration to the surface of a thin plate in a substantially vertical direction (Japanese Patent Publication No. 51-12568), and vibrating the surface of a thin plate using a vibrating nozzle (Japanese Patent Publication No. 51-7).
7777), a method of magnetizing the ends of laminated thin plates to the same polarity using a magnet and utilizing the repulsive force (Utility Model Act 55-24
038) etc. are also known.

[0006]

[Problems to be Solved by the Invention] However, in these methods, the thin plate may be damaged due to extreme bending, and the equipment used is complicated or large-scale. There are some drawbacks.

[0007] Furthermore, the method using a magnet as in the above-mentioned Japanese Utility Model Publication No. 55-24038 has the problem that it cannot be used for thin plates for which magnetic force cannot be used due to their nature.

The present invention has been made to solve the above-mentioned conventional problems, and provides a method for preventing double hanging of stacked thin plates, which can reliably prevent double hanging of thin plates by simple means. The task is to

[0009]

[Means for Solving the Problems] The present invention provides a method for preventing the hanging of two stacked thin plates when the stacked thin plates are sequentially lifted by a lifting means, in which a striking means for striking the thin plates is provided, and a striking means for striking the thin plates is provided. The above object is achieved by lifting the thin plate by holding the upper surface of the thin plate with a lifting means and striking the lifted thin plate with the striking means.

0010

[Operation] In the present invention, the stacked thin plates are
When lifting one by one using a lifting means such as a vacuum suction pad, starting with the highest one, by hitting a part of the lifted thin plate, the thin plate attached to the thin plate held by the lifting means can be removed. Since the impact force can be used to separate the thin plates, the thin plates can be reliably lifted one by one.

According to the present invention, it is possible to reliably lift one sheet at a time, not only for thin sheets that cannot be used with magnetic force, but also for thin sheets that are hard to separate, such as thin sheets with a well-finished surface or thin sheets coated with oil on the surface. I can do it.

0012

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic front view showing a lifting device applied to a first embodiment of the present invention, along with its function.

The lifting device 1 has a lifting frame 10, and a lifting cylinder 12 is installed at a predetermined upper part of the lifting frame 10, and a lifting cylinder 12 is installed below the lifting frame 10. A vacuum suction pad (lifting means) 14 is installed.

Further, striking cylinders 16 are installed at both ends of the lifting frame 10, and a striking piece (impacting means) 18 made of rubber or the like is attached to the tip thereof, which is moved up and down by the cylinder 16. .

Further, the reference numeral B in the figure is a storage box, and inside the storage box B, a large number of cut plates (thin plates) S are stacked and stored.

In this embodiment, after the above-mentioned lifting device 1 is moved above the above-mentioned storage box B by a moving means (not shown), the above-mentioned lifting cylinder 12 is driven to move the above-mentioned vacuum suction pad. 14 is lowered, and the pad 14 is pressed against the surface of the cutting plate S to bring it into contact.

The vacuum suction pad 14 is placed on the uppermost cutting plate S.
After making contact with the surface of the pad 14, the pressure inside the pad 14 is reduced to attract and hold the cut plate S.

With the cut plate S being sucked and held, the vacuum suction pad 14 is raised, and when the cut plate S is lifted to the position shown in FIG. The cut plate S in the state of
Hit with 8.

As described above, when the suspended cutting board S is struck, the impact force at that time causes the suspended cutting board to remain attached to the back surface of the cutting board S, as shown by the two-dot chain line in the figure. If the plate S' is present, it is possible to separate it. As a result, the separated cut plate S' falls back to its original position, making it possible to lift only the cut plate S that is attracted to the cylinder, ensuring that only one cut plate S
can be transported to a desired location.

[0021] Therefore, it becomes possible to take out and move the cut plates S one by one from the storage box in which the cut plates S are stacked and stored, which simplifies the work when handling cut plates for testing or processing, for example. Automation is now possible. In addition, it can effectively separate cut plates such as oiled plates that were previously difficult to separate.
It became possible to lift one piece at a time.

Furthermore, in this embodiment, the suspended cut plate S
Since the impact is applied near the end of the cut plate S', the adhering cut plate S' can be effectively separated. In addition, in the case of a cut plate coated with oil and having a strong adhesion force, it can be effectively separated by applying a blow to the extent that the cut plate bends while being lifted up.

[0023] The manner of striking with the above-mentioned striking piece is not particularly limited; for example, one strike may be sufficient, and if one strike is not sufficient, the striking cylinder 16 may be used. The vertical movement may be repeated to perform two or more strikes.

[0024] Furthermore, the degree of impact is determined by
can be arbitrarily adjusted within a range that does not come off, and the interval when striking two or more times can be arbitrarily changed to the extent that an appropriate impact force can be applied to the cut plate S.

Furthermore, the number of striking pieces 18 installed can be changed arbitrarily depending on the size, type, etc. of the cut plate S to which it is applied, and the installation position can also be changed so that it can strike the vicinity of the end of the cut plate S. It's not limited to location.

Further, the means for driving the striking piece is not limited to a cylinder, but may be, for example, an electric motor.

Next, a second embodiment of the present invention will be described.

In this embodiment, as shown in FIG. 2, when the cut plate S is sucked and lifted by the vacuum suction pad 14, the vicinity of the end of the cut plate S can be hit during the lifting. This embodiment is substantially the same as the first embodiment except that the striking means 20 is separately installed at a location where it can be used.

The striking means 20 applied to this embodiment has a striking piece 18 made of rubber or the like attached to the tip of an arm 24 to which elastic force is applied by a spring 22. This striking piece 18, when the cut plate S is lifted,
It is arranged at a position where it comes into contact with the vicinity of the end of the cutting plate S.

In this embodiment, the cut plate is suctioned by the vacuum suction pad 14 in the same way as in the first embodiment, and then
), the cut plate S is rapidly lifted and raised while in the suction state. When the cutting plate S rises to the position of the striking piece 18, the vicinity of the side end of the cutting plate S collides with the striking piece 18, as shown in FIG. At the same time, it is pushed outward and lifted further upwards. At the same time, the striking piece returns to its original position by the spring 22 and waits for hoisting the next cut plate.

According to this embodiment, as described above, the cut plate S is raised rapidly and the vicinity of its end collides with the striking piece 18, so that a striking force is applied to the cut plate S at that time. As a result, similarly to the first embodiment, the vacuum suction pad 14
It becomes possible to reliably separate the cut plate S' adhering to the cut plate S that is attracted to the cut plate S, and it becomes possible to reliably lift the cut plate S one by one.

Although the present invention has been specifically explained above, it goes without saying that the present invention is not limited to what has been shown in the above embodiments.

For example, in the above embodiment, a lifting device is shown in which vacuum suction pads are provided at two locations in the width direction. The number and position of vacuum suction pads can be changed as desired.

Further, although only a vacuum suction pad is shown as the lifting means, the present invention is not limited to this, and for example, an electromagnet may be used instead of the vacuum suction pad.

[0035]

As described above, according to the present invention, stacked thin plates can be reliably lifted one by one starting from the topmost one by simple means.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view showing a vacuum suction pad applied to a first embodiment along with its function.

FIG. 2 is a schematic front view showing the main parts of the lifting device applied to the second embodiment, along with their functions.

[Explanation of symbols]

1... Lifting device, 12...lifting cylinder, 14...Vacuum suction pad, 16...Blow cylinder, 18...Blowing piece.

Claims (1)

[Claims] Claim 1: A method for preventing the suspension of two stacked thin plates when the stacked thin plates are sequentially lifted by a lifting means, wherein a striking means for striking the thin plates is provided, and the upper surface of the uppermost thin plate is touched by the lifting means. A method for preventing hanging of two stacked thin plates, which comprises holding and lifting the thin plates, and striking the lifted thin plates with the striking means.