JP2007276802A - Inner ring attaching device and method for packing metal plate coil - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inner ring attaching device and method which make it possible to automatically attach an inner ring by increasing the diameter of an inner peripheral metal plate inserted in a metal plate coil inner tube part, so as to bring it into close contact with the inner peripheral face of a metal plate coil. <P>SOLUTION: The position of the tail end part of the inner peripheral metal plate is detected. While gripping two parts with the tail end part as boundary between them, opposite forces are applied so that the diameter of the inner peripheral metal plate is increased in the circumferential direction of the metal plate coil. Thereby, the inner peripheral metal plate is brought into close contact with the inner periphery in order to define its core relative to the inner tube. Then, the inner ring is fitted therein. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an automatic metal packing apparatus for a paper-packed metal plate coil 1 and corrects the inner metal plate 3 inserted into the inner periphery of the metal plate coil before mounting the inner ring, thereby correcting the metal plate coil. It is related with the technique of making it closely_contact | adhere to the inner peripheral surface and automatically mounting | wearing an inner peripheral ring.

  Coil products in which strips such as strips are wound in a cylindrical shape (hereinafter referred to as metal plate coils) are used in the product packaging process to prevent damage and rust during product transport. Paper packaging is applied to wrap the sides with waterproof paper or rust-proof paper without any gaps. Furthermore, the products for export are subjected to metal packaging in which a metal plate coil that has been packed in paper is further packed with a metal plate in order to prevent breakage and wrinkles of the packing paper being transported and to reduce rainwater intrusion.

  In paper packaging, first, the inner peripheral paper is mounted on the inner peripheral surface of the metal plate coil, and then the outer peripheral paper, which is larger and wider than the metal plate coil, is wound around the outer peripheral surface. Then, both sides of the outer peripheral paper are folded at the edges, and the end of the outer peripheral paper is folded into the inner periphery and bonded to the inner peripheral paper. Furthermore, a cardboard packaging material may be attached to the inner peripheral edge and the outer peripheral edge to protect the edge.

  FIG. 9 shows an outline of the metal packaging. Hereafter, the process of metal packaging is demonstrated in order. First, a doughnut-shaped side metal plate 21 that covers the side surface is attached to the metal plate coil 1 that is packed in paper, and the outer peripheral backing metal 22 is attached to the outer peripheral edge. The outer peripheral buckle protects the outer peripheral edge and simultaneously fixes the side plate. Next, the outer peripheral metal plate 20 is wound on the outer peripheral surface of the metal plate coil from above the outer peripheral backing metal, and the end is fixed with tape. Then, the inner peripheral metal plate 3 is rolled and inserted into the inner cylindrical portion of the metal plate coil, and the inner peripheral ring extends from the both ends to the inner side of the inner peripheral metal plate with the inner peripheral metal plate expanded by elastic recovery in close contact with the inner peripheral surface. Fit 4 and fit. Finally, several places are bound with steel straps.

  Since the metal plate coil is transported by inserting the claws of the lifter of the crane from both sides into the metal plate coil inner cylinder, the metal plate particularly at the inner peripheral edge portion where the claws hit is easily damaged. Accordingly, an inner ring is attached to protect the inner peripheral edge. The inner peripheral ring includes a cylindrical portion that is fitted inside the inner peripheral metal plate and a flange portion that contacts the side surface of the metal plate coil.

A conventional automatic inner ring mounting device is disclosed in Patent Document 1. FIGS. 7 and 8 are side views of the apparatus of the above-mentioned document, and FIGS. 7A, 7B, and 7C sequentially show the fitting operation of the inner ring. As shown in the figure, the conventional apparatus has a plurality of expansion / contraction arms 2 that extend radially from the center of the metal plate coil and extend radially, and the pressing member 6 pushes the inner peripheral metal plate 3. In this state, the pusher 5 is a device for fitting the inner ring 4 in the metal plate coil cylindrical axis direction.
JP 7-266150 A

  The inner ring 4 in the metal packing is mounted by fitting the cylindrical portion of the inner ring into the inner peripheral metal plate 3 inserted into the inner cylinder portion of the paper plate-completed metal plate coil 1. Therefore, when fitting, it is necessary to make the inner diameter of the inner peripheral metal plate larger than the outer diameter of the cylindrical portion of the inner ring. The inner diameter error of the inner peripheral metal plate increases due to the swelling of the outer peripheral paper folded into the inner peripheral surface of the metal plate coil and the protective member attached to the edge, so the inner peripheral metal plate is expanded. In some cases, the gap between the inner diameter and the inner ring diameter is extremely small, causing the inner metal plate and the inner ring to collide and causing automatic mounting to fail. Therefore, it is necessary to enlarge the diameter of the inner peripheral metal plate so that the inner peripheral ring can be fitted.

  Here, the problems of the conventional automatic inner ring mounting device are shown in FIG. FIG. 6 is a front view of the metal plate coil as viewed in the cylindrical axis direction. In the conventional method, a plurality of expansion / contraction arms 2 expand radially and are corrected by pressing the pressing member 6 against the inner peripheral metal plate. Therefore, between the points 9 pressing the expansion / contraction arms as shown in FIG. A portion 10 in which the inner peripheral metal plate looks like a string is formed, and cannot be brought into close contact with the inner periphery of the metal plate coil. In particular, if the pressing member 6 is pressed against a portion where the inner peripheral metal plates near the tail end overlap each other, it prevents the diameter from expanding, so that the string tension portion 10 is remarkably generated. Therefore, even if the inner peripheral metal plate is aligned with the center of the inner peripheral ring and the inner peripheral metal plate is enlarged beyond the inner peripheral ring diameter in the pressing member pressing portion 9, the inner peripheral metal plate is inserted when the inner peripheral ring is fitted. The string tension part 10 and the inner ring cylindrical part collide with each other, and there is a problem that the automatic mounting of the inner ring fails.

  Accordingly, the present invention has been made to overcome the above-mentioned conventional problems, and prevents the inner peripheral metal plate from being formed with a stringed portion 10 after the inner peripheral metal plate is corrected. An object of the present invention is to provide an apparatus and a method that expands in close contact with the inner peripheral surface of a coil and facilitates automatic mounting of the inner peripheral ring.

The gist of the present invention is as follows.
(1) An inner ring mounting device in which a packing inner metal plate rolled into a cylindrical shape inside a metal plate coil inner cylinder is closely attached to an inner peripheral surface, and then an inner ring is fitted and mounted. , Two gripping means for gripping two places in the circumferential direction across the tail end of the inner peripheral surface of the packing inner peripheral metal plate, and inserting the two gripping means into the inner cylindrical portion of the metal plate coil, An insertion positioning means for moving the two gripping means to a position straddling the inner metal plate tail end, and a direction opposite to each other in the circumferential direction of the metal plate coil across the inner metal tail edge An inner ring mounting device for packing a metal plate coil, characterized in that it has load means for applying a force and inner ring fitting means for centering the inner cylinder portion and fitting the inner ring. .
(2) The two gripping means are two rollers that can be rotationally driven and have a pressing means against the inner peripheral surface of the metal plate coil supported from the axial direction. Inner ring mounting device for metal plate coil packing.
(3) The pressing means of the two rollers has a pair of expansion / contraction arms at a position sandwiching the turning shaft and a third roller different from the two rollers, and the outer peripheral side of one expansion / contraction arm is the The inner peripheral ring mounting device for packing a metal plate coil according to (2), characterized in that it is connected to two rollers and the outer peripheral side of the other expansion / contraction arm is connected to the third roller.
(4) The inner peripheral ring mounting device for packing a metal plate coil according to any one of the above (1) to (3), further comprising detection means for detecting a tail end portion of the inner peripheral metal plate.
(5) In the method of fitting the inner ring to the inner peripheral surface after the inner peripheral metal plate for packing inserted into the inner cylindrical portion of the metal plate coil in a cylindrical shape is closely attached to the inner peripheral surface, Detecting the tail end position, gripping two circumferential directions across the tail end, applying forces in the opposite directions in the circumferential direction of the metal plate coil to the gripping portion, An inner ring mounting method for packing a metal plate coil, wherein the inner ring is fitted by expanding the diameter and centering the inner cylinder part.
(6) When gripping the two locations with the inner peripheral metal plate tail end as a boundary, two rollers are used as two gripping means, and the two rollers are pressed while being driven to rotate in opposite directions. In addition, the inner peripheral ring mounting method for packing a metal plate coil according to (5) above, wherein the diameter of the inner peripheral metal plate is expanded.
(7) When pressing the two rollers, a third roller is provided at a position opposite to the center axis of the two rollers and the metal plate coil, and the third roller and the two rollers are connected to the metal plate. The inner ring mounting method for packing a metal plate coil according to the above (6), wherein the inner ring is pressed against the inner circumferential surface of the coil.
(8) The inner ring is mounted from both side surfaces simultaneously using two inner ring mounting devices according to any one of (1) to (4), (5) to (7) An inner ring mounting method for packing a metal plate coil according to any one of the above.

  According to the present invention, since the force for expanding the diameter in the uniform circumferential direction acts on the entire circumference of the inner peripheral metal plate by the two gripping means at the tail end portion of the inner peripheral metal plate, A tension part does not occur and it becomes possible to make an inner circumference metal plate stick to an inner circumference surface of a metal plate coil. In addition, the inner ring can be easily mounted without colliding with the inner metal plate while the inner metal plate is in close contact, and the inner ring of the metal plate coil has a large inner diameter error of the inner metal plate. An automated device that can handle mounting work can be realized. Furthermore, compared to conventional devices that extend the expansion / contraction arms radially, the number of arms is small, so the device can be simplified, and the same inner peripheral metal plate straightening effect can be applied to standard metal plate coils with different inner peripheral diameters. Is obtained.

  Hereinafter, the most preferred embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a side view of the inner ring mounting device 26 of the present invention. FIG. 2 is a front view of the state in which the inner peripheral metal plate correction device 23 is inserted into the metal plate coil when viewed in the cylindrical axis direction. Here, the inner peripheral metal plate straightening device 23 includes a rotationally driveable driving roller 12 that grips two circumferential directions across the tail end of the inner peripheral surface of the inner peripheral metal plate, and the tail end of the inner peripheral metal plate. The tail end detecting means 24 for detecting the part, the turning shaft 11 for positioning the driving roller 12 at the tail end 8 of the inner peripheral metal plate, and the horizontal movement for positioning the inner peripheral metal plate correcting device 23 at an arbitrary place. Means 27, vertical direction moving means 28, expansion / contraction arm 2 for obtaining a pressing force by moving the roller 12 in the radial direction, reaction force generating roller 13 for obtaining a pressing force stably and its expansion / contraction arm 2, and This is an apparatus for bringing an inner peripheral metal plate into close contact with an inner periphery of a metal plate coil, which includes a driving device 29 that rotates the driving roller 12 in opposite directions.

  The inner ring mounting device 26 is arranged in the next process of inserting the inner metal plate in the automatic packing line, and is used for the metal plate coil on which the side metal plate, outer metal pad, outer metal plate, and inner metal plate are mounted. Then, the inner peripheral metal plate is corrected so that the inner peripheral surface is in close contact with the inner periphery, and an operation of mounting the inner peripheral ring is performed. The inner ring mounting device 26 includes an inner metal plate straightening device 23 and an inner ring fitting means 30. The inner ring fitting device 30 is a metal plate independent of the inner metal plate straightening device 23. An inner ring moving means 25 that can be driven in the coil axis direction and a pusher 5 for fitting the inner ring are provided. The horizontal direction moving means 27 and the vertical direction moving means 28 of the inner peripheral metal plate correcting device also function as a part of the positioning means of the inner peripheral ring.

  The driving roller 12 is positioned by rotating the turning shaft 11 so that the two rollers come to two places in the circumferential direction across the tail end of the inner peripheral metal plate. After inserting the inner metal plate straightening device into the metal plate coil, by extending the expansion / contraction arm 2 of the driving roller and reaction force generating roller and pressing each roller against the inner metal plate, directions 15 and 16 shown in FIG. Since the pressing force acts on and the reaction force generating roller is present, these pressing forces cancel each other and can stably press the driving roller. In a state where the drive roller is pressed against the inner peripheral metal plate, the drive rollers rotate in directions opposite to each other in a direction 14 shown in FIG. 5 so that the diameter of the inner peripheral metal plate is expanded.

  Since the driving roller 12 transmits the rotational driving force to the inner peripheral metal plate 3 by friction, it is necessary to have a sufficient friction coefficient between the driving roller 12 and the inner peripheral metal plate. Further, the smaller the interval between the driving rollers, the inner peripheral metal plate tail end can be in close contact with the inner peripheral surface. However, by driving the roller 12, the inner peripheral metal plate tail end 8 is between the driving roller pressing portions. Has a spacing that does not deviate or is controlled as such.

  The reaction force generation roller is connected to the tip of the expansion / contraction arm on the side opposite to the drive roller 12, and the drive roller can be stably pressed against the inner peripheral metal plate by extending the two expansion / contraction arms. The reaction force generating roller 13 is freely rotatable and does not hinder the movement when the inner peripheral metal plate expands. The reaction force generation roller may be arranged symmetrically so as to cancel out the pressing force of the drive roller by using two or more reaction force generation expansion / contraction arms and rollers.

  FIG. 3 is a cross-sectional view of the metal plate coil in the cylindrical direction, and shows operations from (A) insertion of the inner peripheral metal plate straightening device 23 to (B) insertion of the inner peripheral ring 3. First, before inserting the inner peripheral metal plate straightening device 23, the tail end detection means 24 is used to detect the position of the inner peripheral metal plate tail end portion in advance, and the drive roller 12 is moved to the inner position based on the obtained position information. The turning shaft 11 is rotated in accordance with the peripheral metal plate tail end position 8, and the inner peripheral metal plate correction device 23 is inserted from both ends of the inner cylinder of the metal plate coil 1 with the expansion / contraction mechanism reduced. Next, the expansion / contraction mechanism was extended to press the driving roller against the inner peripheral metal plate 3, and the driving roller was rotated reversely so that the diameter of the inner peripheral metal plate was expanded, thereby closely contacting the inner peripheral metal plate to the inner peripheral surface. Keep in state. Then, the inner ring 4 is centered by the inner ring moving means 25 of the inner ring insertion means 30 and inserted by pushing the inner ring 4 with 5, and then the expansion / contraction arm 2 is reduced to the inner ring 4 The inner peripheral metal plate straightening device 23 is retracted from the inside of the tube portion. However, in this embodiment, since the inner peripheral metal plate straightening device 23 and the inner peripheral ring fitting means 30 are integrated, at the same time as the step of bringing the inner peripheral metal plate into close contact with the inner periphery of the metal plate coil, It is possible to center the ring 4.

  The position of the tail end 8 of the inner metal plate is detected by, for example, image processing, photographing the inner circumference of the metal plate coil with the inner metal plate 3 inserted, and the shape of the inner metal plate tail 8 is determined. A method of pattern matching using a difference from an arc, or a method of detecting a feature point where the projected light beam changes at the tail end of the inner metal plate by irradiating the inner surface of the metal plate coil with a line laser beam Conceivable.

  Of the embodiments of the inner ring mounting device of the present invention, the first of different forms is shown in FIG. 4 shows the state in which the inner peripheral metal plate 3 is inserted into the inner cylindrical portion of the metal plate coil 1 along the inner cylindrical surface and the inner peripheral metal plate correcting device 23 of the present invention is further inserted in the cylindrical axis direction. It is a front view. However, the inner peripheral metal plate straightening device 23 here is different from the embodiment exemplified in the best mode for carrying out the invention as described below. It is the same that it is a device for bringing a metal plate into close contact with the inner periphery of the metal plate coil. The two gripping means 17 utilize suction force or frictional force such as vacuum or magnetic force, and grip the inner peripheral metal plate with these gripping forces. The two gripping means are positioned by the expansion / contraction arm 2 and the turning shaft 11, and forces opposite to each other are applied by the arm driving means 19 so that the diameter of the inner peripheral metal plate expands in the circumferential direction of the metal plate coil. Although different from the above-described best embodiment in the above part, the steps such as fitting the inner ring are the same thereafter. The gripping by the driving roller in the best embodiment described above may cause slippage between the inner peripheral metal plate and the driving roller. However, in this method, gripping is performed using an attracting force or the like. Can be said to be possible. On the other hand, the arm drive device 19 is newly required to move the two gripping means in the circumferential direction to increase the distance between them. In this method, when the attracting force is used without using the frictional force for the gripping means, the pressing means is unnecessary, and the expansion / contraction arm is used for positioning the gripping means.

  Of the embodiments of the inner ring mounting device of the present invention, the second of different forms is shown in FIG. FIG. 5 shows the situation in which the inner peripheral metal plate 3 is inserted into the inner cylindrical portion of the metal plate coil 1 along the inner cylindrical surface and the inner peripheral metal plate correcting device 23 of the present invention is further inserted in the cylindrical axis direction. It is a front view. However, the inner peripheral metal plate straightening device 23 here is a device for bringing the inner peripheral metal plate into close contact with the inner periphery of the metal plate coil, although it is different from the above-described embodiment and the above-mentioned example as in the above-described example. The two gripping means are the driving roller 12, but instead of pressing the driving roller 12 against the inner peripheral surface using the reaction force generating roller 13 as shown in FIG. 2, the rotating shaft 11 is fixed after inserting the correction device. The expansion / contraction arm 2 is extended, and the roller 12 is pressed against the inner peripheral surface by utilizing the weight of the metal plate coil. Although the above-mentioned part is different from the first embodiment and the first of the different forms, the steps such as fitting the inner ring 4 are the same thereafter. Since this method does not require a reaction force generating roller and its expansion / contraction arm, the apparatus can be simplified. On the other hand, depending on the position of the tail end, the expansion / contraction arm may exert a lateral force on the metal plate coil. Therefore, when the inner peripheral metal plate is inserted into the inner cylindrical portion of the metal plate coil, it is desirable to set the tail end position to be the upper or lower portion of the inner periphery of the metal plate coil.

It is a side view of the inner periphery ring mounting apparatus which is the best embodiment of this invention. It is a front view of the inner periphery metal plate correction apparatus which is the best embodiment of this invention. (A) (B) is a side view which shows operation | movement of the apparatus which is an Example of this invention. It is a front view which shows the Example of this invention. It is a front view which shows the Example of this invention. It is a front view which shows the subject of the prior art. (A), (B), and (C) are sectional views of the inner peripheral portion of the metal plate coil showing the insertion operation of the inner peripheral ring in order. It is a side view of the apparatus which shows a prior art. It is a perspective view which shows the method of the metal packing of a metal plate coil.

Explanation of symbols

1 Metal plate coil
2 Expansion / contraction arm (expansion / contraction member)
3 Inner metal plate
4 Inner ring
5 Pusher
6 Pressing member
7 Inner peripheral paper (including outer peripheral paper folded on the inner peripheral surface)
8 Inner metal plate tail end
9 Pressing member pressing part
10 Inner metal plate strings
11 Rotating axis
12 Drive roller
13 Reaction force generation roller
14 Roller rotation direction
15 Direction of action of driving roller pressing force
16 Direction of action of pressing force of roller for reaction force generation
17 Gripping means
18 Direction of force applied to inner metal plate by gripping means
19 Arm drive
20 Peripheral metal plate
21 Side metal plate
22 Peripheral allowance
23 Inner metal plate straightener
24 Inner metal plate tail end detection means
25 Inner ring moving means
26 Inner ring mounting device
27 Horizontal movement means
28 Vertical movement means
29 Roller drive
30 Inner ring insertion means

Claims (8)

  An inner ring mounting device for fitting and mounting an inner ring after closely attaching an inner metal surface for packing inserted into a cylindrical shape inside a metal plate coil inner cylinder portion, the packing Two gripping means for gripping two circumferential directions across the tail end of the inner peripheral surface of the inner peripheral metal plate, and inserting the two gripping means into the inner cylindrical portion of the metal plate coil, Insertion positioning means for moving the two gripping means to a position straddling the metal plate tail end, and forces opposite to each other in the circumferential direction of the metal plate coil across the inner peripheral metal plate tail end. An inner ring mounting device for packing a metal plate coil, comprising load means for applying, and inner ring fitting means for centering the inner cylinder portion and fitting the inner ring.   2. The metal plate coil package according to claim 1, wherein the two gripping means are two rollers that can be rotationally driven and have a pressing means against the inner peripheral surface of the metal plate coil supported from the axial direction. Inner ring mounting device.   The pressing means of the two rollers has a pair of expansion / contraction arms located at a position sandwiching the pivot axis and a third roller different from the two rollers, and the outer peripheral side of one expansion / contraction arm is the two rollers The outer peripheral side of the other expansion-contraction arm is connected with the said 3rd roller, The inner peripheral ring mounting apparatus for metal plate coil packing of Claim 2 characterized by the above-mentioned.   The inner peripheral ring mounting device for packing a metal plate coil according to any one of claims 1 to 3, further comprising detecting means for detecting a tail end portion of the inner peripheral metal plate.   In the method of fitting the inner peripheral ring into the inner peripheral surface after the inner peripheral metal plate for packing inserted into the inner cylindrical portion of the metal plate coil in a cylindrical shape is closely attached to the inner peripheral surface, the tail end portion of the inner peripheral metal plate The position is detected, the two circumferential directions across the tail end portion are gripped, and forces in opposite directions in the circumferential direction of the metal plate coil are applied to the gripping portion to widen the diameter of the inner peripheral metal plate. An inner ring mounting method for packing a metal plate coil, characterized by centering the inner cylinder part and fitting an inner ring.   When gripping the two locations with the inner metal plate tail end as a boundary, two rollers are used as two gripping means, and the two rollers are rotated while being pressed to apply forces in opposite directions to each other. 6. The method for mounting an inner ring for packing a metal plate coil according to claim 5, wherein the diameter of the peripheral metal plate is expanded.   When the two rollers are pressed, a third roller is provided at a position opposite to the two rollers and the metal plate coil central axis, and the third roller and the two rollers are connected to the inner circumference of the metal plate coil. 7. The inner ring mounting method for packing a metal plate coil according to claim 6, wherein the pressing is performed in a direction repelling the surface.   The metal according to any one of claims 5 to 7, wherein two inner ring mounting devices according to any one of claims 1 to 4 are used to simultaneously mount the inner ring from both side surfaces. Inner ring mounting method for plate coil packing.

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