JPH0577948A - Method and device for separating stacked metal plate - Google Patents

Abstract

PURPOSE:To provide a method for separating a stacked metal plate wherein the metal plate can be surely separated against closely sticking force of oil of high viscosity such as rolling oil. CONSTITUTION:In a lengthwise direction in a plan-view on a metal plate 1 stacked in a multistep state, a necessary number of vacuum pads 2 are rightly opposed with a space apart to suck and lift a part of the rightly facing metal plate 1 by a time difference in order from the vacuum pad 2 positioned in the outermost side of the vacuum pads 2, and the metal plate 1 in the upper position is separated gradually from the metal plate 1 in the lower position to finally suck and lift a part of the rightly facing metal plate 1 by the vacuum pad 2 in the central part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for separating stacked metal plates that are difficult to peel off due to viscous oil such as rolling oil.

[0002]

2. Description of the Related Art A metal plate, such as a stainless steel plate, is usually cold-rolled after cutting a hot-rolled plate into a predetermined shape, followed by a pickling process called pickling and a conditioning process (care). It is manufactured through an annealing process and a polishing process. When transferring stainless steel plates to an annealing furnace in the process of manufacturing such stainless steel plates, due to the influence of rolling oil with high viscosity, the adhesion force between the stacked stainless steel plates is strong and it is easy to move them to the lower stainless steel plate. On the other hand, since the upper stainless steel plate does not peel off, one worker holds down the lower stainless steel plate, while several workers lift the upper stainless steel plate against the adhesive force of the rolling oil to peel it off and anneal it. The artificial method of transferring to the furnace is used.

[0003]

However, the manufacturing of stainless steel plates is often carried out in a line work, and if an artificial method is performed in the middle of the manufacturing process, the manufacturing efficiency will be significantly reduced. Since many workers are unnecessarily assigned to the process of transferring the stainless steel plate to the annealing furnace, labor saving cannot be expected.

The present invention has been made in view of the conventional circumstances, and the object of the present invention is to stack metal plates that can reliably separate the metal plates against the adhesive force of highly viscous oil such as rolling oil. To provide a separation method and apparatus therefor.

[0005]

According to the first aspect of the present invention, the technical means taken to achieve the above object are the required number of vacuum pads in the lengthwise direction in plan view on the metal plates stacked in multiple stages. The metal plates are directly opposed to each other at intervals, and the metal plates facing each other are sequentially adsorbed and lifted with a time lag from the outermost vacuum pad of the vacuum pad, and the metal plate of the upper position is gradually advanced to the metal plate of the lower position. It is the gist to peel off, and finally to adsorb and raise the facing metal plate portion with the vacuum pad in the central portion. According to a second aspect of the present invention, an iron plate separator is provided which approaches or abuts a side surface portion of the metal plate group stacked in a multi-stage manner and repels the upper metal plate and the lower metal plate by using magnetic force. The gist is to make the iron plate separator act on the metal plate at least at the time of adsorption by the vacuum pad. According to a third aspect of the present invention, a supporting portion in which a required number of bakuchum pads are vertically provided in a longitudinal direction of metal plates stacked in a multi-stage manner, a vertical moving device for vertically moving the supporting portion, and the substrate portion are horizontally arranged. It is constituted by a lateral moving device for moving in a direction, and the vacuum pad is controlled so as to adsorb and lift up a facing metal plate portion with a time lag from the outermost portion in order.

[0006]

According to the above technical means, the following actions are achieved. (Claim 1) In the stacked metal plates, both end portions having the weakest adhesive force are first adsorbed by the outer vacuum pads to be lifted up, and the slightly inner metal plate portion which is easily peeled off on the lifted up side. Next, it is lifted up by suction with the inner vacuum pad, and finally the vacuum pad facing the central part of the metal plate with the strongest adhesive force is adsorbed, and peeled off in order from the weak adhesive point. Because it ’s the way to go
Even if the upper metal plate and the lower metal plate are firmly adhered to each other with a highly viscous oil such as rolling oil, the upper metal plate can be separated from the lower metal plate. (Claim 2) In the iron plate separator, the upper metal plate and the lower metal plate repel each other to further enhance the separating force. (Claim 3) In the stacked metal plates, both end portions having the weakest adhesion are first adsorbed by the outer vacuum pad to be lifted, and the metal plates are adsorbed and lifted similarly by the inner vacuum pad. Finally, at the central part, the metal plate part facing up with the vacuum pad is lifted by suction to separate the upper metal plate from the lower metal plate, and then the support part is raised by the vertical movement device, and The supporting unit is horizontally moved by the lateral moving device onto the intended conveying means, and the suction is released there to place one metal plate on the conveying means.

[0007]

Since the present invention is constructed as described above, it has the following advantages. (Claim 1) It is possible to reliably separate the uppermost metal plate of the stacked metal plate group whose adhesion is strengthened by rolling oil or the like from the lower metal plate. Therefore, the manufacturing of the metal plate can be further automated, the labor of the worker can be surely saved, and the manufacturing efficiency can be improved. (Claim 2) In the iron plate separator, since the repulsive force of mutual repulsion between the upper and lower metal plates cooperates with the suction force of the vacuum pad, the metal plates can be separated more reliably and quickly. This makes it possible to shorten the metal plate manufacturing cycle time and increase the manufacturing efficiency. (Claim 3) While separating the upper metal plate from the lower metal plate, the upper separated metal plate is continuously and automatically transferred to a desired place (in the case of a stainless steel plate, an annealing furnace or the like). The present invention provides a device for separating stacked metal plates that does not require any manpower for separation and transportation.

[0008]

Embodiments of the present invention will now be described with reference to the drawings. 1 to 4 show a method and apparatus for separating a stainless steel plate according to the second and third embodiments.

The separating apparatus A used in this separating method is
As shown in FIGS. 1 and 2, an annealing furnace B is provided for each stainless steel plate group 1'rolled in a rolling process and stacked in multiple stages.
Showing a device for transferring to a rear end of the first conveyer C for conveying the stainless steel plate group 1 ′ rolled in the rolling process and stacked in a multi-stage manner, and to the second conveyer D for conveying to the annealing furnace B. The machine frame a1 and the support portion a2 in which a large number of vacuum pads 2 are vertically arranged at equal intervals so as to face each other in the longitudinal direction of the central portion of the stainless steel plate 1 in plan view.
And a vertical movement device a3 for vertically moving the supporting portion a2,
It is composed of a lateral moving device a4 for transferring to the second conveyor D for carrying to the annealing furnace B, and an iron plate separator a5.

The machine frame a1 is assembled and formed in a gantry shape in a front view and in a rectangular shape in a plan view by framing desired rods a1 '.

The support portion a2 is a horizontally long plate 3 on which the vacuum pads 2 are vertically arranged at equal intervals.

The vertical moving device a3 includes a suspending air cylinder 4 which is connected to the central portion of the horizontally elongated plate 3 by a rod portion 4a and suspends the horizontally elongated plate 3 so as to be vertically movable. It is composed of a fixed slide body 5 and a guide portion 6 fixed to the slide body 5 by slidably guiding guide rods 6a standing from both sides of the horizontally long plate 3.

The vacuum pads 2 ... Are shown in FIG.
As shown in FIG. 6, 6 bodies are provided, and 4 bodies other than the central portion are attached to the tip of the air cylinder 2a, and the 4 bodies are stacked stainless steel plates regardless of the vertical movement of the horizontal plate 3. 1, the remaining two bodies are provided with spring cushions and are pressed against the stainless steel plate 1 when the horizontally elongated plate 3 descends. The four bodies are adsorbed with a time lag from the outer part and are slapped. It is controlled to go up.

The guide portion 6 is for preventing the laterally long plate 3 from swinging, and the function of the guide portion 3 allows the laterally long plate 3 to function.
Can be moved up and down horizontally.

The lateral moving device a4 has the above-mentioned slide body 5 in which a suspending air cylinder 4 for suspending the laterally long plate 3 is fixed.
It is composed of a rail 8 for horizontally traveling and a lateral movement air cylinder 9 connected to the slide body 5.

In the machine frame a1, the rail 8 is laid on a rod which is laid in parallel between the upper frame parts, and the slide body 5 which moves horizontally by the air cylinder 9 for horizontal movement, that is, The vacuum pad group 2 ′ can be transferred onto the second conveyor D.

The iron plate separator a5 is a well-known separator for separating materials having magnetic properties such as an iron plate and a steel plate from each other by utilizing the repulsion of the same electrodes of the ferrite magnets. Necessary devices having poles are arranged so as to approach or contact both sides in the left-right longitudinal direction of the upper layer portion of the stainless steel plate group 1'which is stacked as shown in FIG. I am doing it. Among the iron plate separators a5, as shown in FIG. 1, the iron plate separator a5 that approaches or abuts on the left side in the longitudinal direction of the stainless plate group 1 '.
Is directly or indirectly connected to an approaching / separating air cylinder 11 fixed to the supporting arm 10 projecting from the machine frame a1 so as to be able to reciprocate. The stainless plate group 1'is a vacuum pad group 2 '. When being conveyed downward by the first conveyer C, the stainless plate group 1 ′ is in a separated state positioned diagonally above and does not hinder the progress of the stainless plate group 1 ′, and the stainless plate group 1 ′ is conveyed below the vacuum pad group 2 ′. When this is done, the left-side longitudinal edge of the upper layer portion of the stainless steel plate group 1'can be approached or abutted.

Next, the separation method of this embodiment will be described using the above-mentioned separation device. Stainless steel plate 1 has a plate thickness of 1.5 to 9 m
m, plate width 190 to 350 mm, and plate length 2000 to 3300 mm. In FIG. 1, when the stainless plate group 1 ′ stacked from the first transfer conveyor C is conveyed directly below the vacuum pad group 2 ′, first, the horizontally long plate 3 is lowered by the lifting air cylinder 4 to completely lower it. The vacuum pad 2 is brought into pressure contact with the uppermost stainless plate 1 (a in FIG. 4). Next, 2 outermost vacuum pads 2 and air cylinder 2
It is adsorbed by the action of a and is lifted up again (peeling up) to separate the front and rear end regions of the stainless steel plate 1 (B in FIG. 4). Further, the two vacuum pads 2 on the inner side are adsorbed by the action of the air cylinder 2a, and the stainless plate 1 portion on the inner side is slightly peeled off by the rising (raising) again (C in FIG. 4). Finally, the lifting air cylinder 4 is lifted (raised) to separate the stainless plate 1 from the lower stainless plate 1 (d in FIG. 4). At this time, since the central portion of the stainless steel plate 1 is peeled off by suction by the two vacuum pads 2 in the central portion, the stainless steel plate 1 is completely separated. The separated stainless steel plate 1 is sent to the second conveyer D by the action of the air cylinder 9 for lateral movement, where the adsorption is released and it is transferred to the annealing furnace B. Also, the iron plate separator a
5 is made to approach or abut when the stainless steel plate 1 is separated, and its repulsive force acts at the time of adsorption on the vacuum pad 2, so that the upper stainless steel plate 1 can be reliably separated from the lower stainless steel plate 2.

Further, claim 1 does not include the iron plate separator a5, and the separation of the stainless steel plate 1 only by the vacuum pads 2 ... Is the same as in the above-mentioned embodiment. I dare to omit it.

Further, it is also possible to forcibly blow air (hot air) between the upper stainless plate 1 and the lower stainless plate 1 when the stainless plate 1 is separated.
Usually, the stainless steel plate 1 immediately after rolling is very hot and the temperature of the rolling oil is high, but on the other hand, the viscosity is low and the separation is relatively easy, but after one day or more, the temperature of the rolling oil decreases,
Since the viscosity becomes high, it becomes difficult to separate the stainless steel plate 1.
Therefore, when hot air is blown with air, the viscosity of the rolling oil is reduced and the stainless steel plate 1 is easily separated. In this case,
Similar to the iron plate separator a5, several outlets 12 of hot air ducts may be made to face the upper layer of the stainless plate group 1 ', and the ducts may be connected to a hot air generator (not shown) ( FIG. 4B).

[Brief description of drawings]

1 is a side view of an apparatus for carrying out the separation method of claims 1, 2, and 3. FIG.

2 is an enlarged front view of FIG. 1, partially shown.

FIG. 3 is a perspective view showing a relationship between an iron plate separator and stacked stainless steel plates.

[Fig. 4] Fig. 4 is a separation process diagram of a stainless steel plate, showing a state in which all the vacuum pads are pressed against the stainless steel plate.
(B) shows a state in which both end portions of the stainless steel plate are peeled off by the outermost vacuum pad. C shows a state in which the further inner portion of the stainless steel plate is peeled off by the vacuum pad inside the above vacuum pad. D shows the state where the stainless steel plate is completely separated.

[Explanation of symbols]

1: Metal plate (stainless steel plate) 2: Vacuum pad a2: Support part a3: Vertical moving device 2 ': Vacuum pad group a4: Horizontal moving device a5: Iron plate separator

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Haruhisa Kato 5025 Tsubame, Tsubame City, Tsubame City, Niigata Prefecture Myodo Metal Co., Ltd.

Claims (3)

[Claims] 1. A vacuum pad is made to face a plurality of stacked metal plates in a longitudinal direction in a plan view at a required number of intervals, and the time difference is sequentially applied from the outermost vacuum pad of the vacuum pad. After that, the metal plate portion facing directly is adsorbed and lifted up, the upper metal plate is gradually peeled off from the lower metal plate, and finally the vacuum metal plate in the central portion is sucked and lifted up. A method for separating stacked metal plates, characterized in that: 2. An iron plate separator is provided which approaches or abuts a side surface portion of the metal plate group stacked in a multi-stage manner and repels an upper metal plate and a lower metal plate by utilizing magnetic force. 2. The method for separating stacked metal plates according to claim 1, wherein the iron plate separator is made to act on the metal plates at least when adsorbed on the vacuum pad. 3. A support part in which a required number of vaccum pads are vertically laid facing a lengthwise direction of metal plates stacked in multiple stages, a vertical moving device for moving the support part up and down, and the substrate part. The vacuum pad is configured to be horizontally moved, and the vacuum pad is controlled so as to adsorb and lift up a facing metal plate portion with a time lag in order from the outermost side. Metal plate separation device.