JP2804437B2 - Method and apparatus for mounting inner diameter ring in packing of steel coil - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for automatically mounting an inner diameter ring on an inner diameter portion in packing a steel sheet coil such as a lomo coil.

[0002]

2. Description of the Related Art A relatively soft steel coil such as a lomo coil used as an original tin plate is used to prevent deformation and damage during transportation, or to prevent rust and moisture in a packing process after manufacturing. The face and both end faces may be packed without gaps. In this packing operation, after covering the outer peripheral surface and both end surfaces of the steel sheet coil with paper and further an iron plate, as shown in FIG. 10, a cylindrical inner peripheral iron plate is inserted into the inner diameter portion of the steel plate coil, and the inner peripheral iron plate is inserted. The inner diameter ring is fitted to the inner diameter side of both ends of
Further, the entire steel coil is hooped by a plurality of steel bands (not shown) to complete the process.

[0003]

Since the conventional packing work is all manual work, the work efficiency is low. In particular, when the inner ring is fitted to both ends of the inner peripheral iron plate, the inner peripheral iron plate is slightly reduced in diameter due to springback. This was a difficult task. In addition, it is very difficult to accurately align the inner ring with the inner iron plate and fit the inner ring, which usually causes misalignment.Therefore, it is necessary to hit the inner ring with a hammer or the like to correct this. Was.

[0004] It is an object of the present invention to enable accurate automatic mounting of an inner diameter ring to an inner diameter portion of a steel sheet coil.

[0005]

The mounting of the inner diameter ring according to the present invention comprises the steps of (a) expanding the expandable and contractible member in the inner diameter portion of the steel sheet coil in the radial direction until it comes into contact with the inner peripheral surface of the inner diameter portion; b) detecting a center position of the expansion member;
(C) moving, based on the detection result, an inner diameter ring that can be fitted to both ends of the inner diameter portion of the steel plate coil so as to match the center position of the expanding / contracting member; It is constituted by a step of moving in the axial direction with respect to the end of the part and fitting.

Another mounting method is as follows: (a) an expanding / contracting member which can be radially expanded and contracted in the inner diameter portion of the steel sheet coil, and an inner diameter ring which can be fitted to both ends of the inner diameter portion of the steel sheet coil. (B) enlarging the expanding / contracting member until it comes into contact with the inner peripheral surface of the inner diameter portion, and (c) extending the inner diameter ring of the holding means to the inner diameter portion. In the axial direction to be fitted to the end of the. In this method, since the reaction force received from the inner peripheral surface of the inner diameter portion by the expanding / contracting member is used for moving the holding means, it is unnecessary to detect the center position of the expanding / contracting member.

[0007] In the mounting device for the inner diameter ring, a bogie that can be adjusted in the front-rear, left-right, and up-and-down directions is disposed on the side of the horizontally placed steel coil, and the inner peripheral iron plate is pushed radially outward on this bogie. An expanding / contracting member for expanding, and holding means for holding the inner diameter ring movably in the direction of the central axis of the expanding / contracting member are provided. The holding means is provided with a pushing means such as a fluid cylinder for fitting the inner ring to both ends of the inner diameter of the steel coil. The longitudinal movement direction of the truck is made to coincide with the axial direction of the steel sheet coil, and the expanding / contracting member is capable of swinging vertically and horizontally relative to the truck.

When the expanding / contracting member is enlarged within the inner diameter portion of the steel coil, the swinging angle formed by the longitudinal movement direction of the bogie and the expanding / contracting member is detected by a detecting means. This detecting means uses, for example, a photoelectric sensor and a light shielding member, and detects whether or not the expanding / contracting member has a swing angle based on the presence or absence of light shielding of the photoelectric sensor. When the swing angle is generated, the bogie is adjusted and moved by the adjusting means so that the swing angle becomes zero. In this way, the holding means for the expanding / contracting member and thus the inner diameter ring and the inner diameter portion are aligned coaxially. Next, the inner diameter ring is pushed toward both ends of the inner diameter portion by a pushing means.

[0009]

The inner ring is pushed into the inner diameter part with the inner peripheral iron plate pushed and spread by the expanding and contracting member, and the holding means of the inner diameter ring and the inner diameter part are coaxially aligned. Since it can be performed very smoothly and there is no deviation in the fitted state, no gap is generated around the inner diameter ring.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Before explaining an inner ring mounting apparatus according to an embodiment of the present invention, a packing process of a steel sheet coil will be described.

FIGS. 9 to 11 show the first stage (basic packing) of the packing process, FIGS. 12 to 14 show the second stage (preferred packing) of the packing process, and FIG. Figure 2 shows the stage of completion of the most suitable package completely protected against mechanical shock.

FIG. 9 shows the first step of the packing step. The steel sheet coil C is wound to form an inner diameter part, and the outer end is tape T
Stopped at. The steel sheet coil C must protect not only the outer peripheral surface but also the end surface E and the inner peripheral surface of the inner diameter portion O from moisture and mechanical shock, and particularly protects the outer peripheral edge Go and the inner peripheral edge Gi from damage. Must.

An end surface contact soft board 1 having a special configuration is prepared for enclosing the end surface E. This soft board 1
In the central hole 3 of the annular disk portion 2, an insertion cylindrical portion 4 for inserting into the inner diameter portion of the coil is fixed to a flange portion 5 thereof. Both the circular disk portion 2 and the cylindrical portion 4 have a thickness of 4 to 5
It is preferably formed from a millimeter polyethylene laminated sheet, particularly a sheet having a surface coated with a vaporizable rust inhibitor (VCI). One such end-face contact soft board 1 is mounted on each side of the coil end face.

Steel coil C encased and protected at the end face
Next, for example, a mandrel is inserted into the inner diameter portion thereof and suspended in the air, and the outer peripheral paper 10 is wound thereon as shown in FIG. If the coil is a high-grade product such as a lomo coil,
Rotating the coil while laying it sideways may damage the product. Therefore, the packaging material must be wrapped around the suspended coil. The outer peripheral paper 10 is wound so that both side edges 11 protrude slightly from the end face.
The outer peripheral paper may be wound so as to have a length just around the coil. Such winding can be performed by an automated operation. The longitudinal edges join or overlap or abut each other. Preferably, the outer peripheral paper 10 has the same V
It can be formed from CI coated polyethylene laminate base paper.

Next, as shown in FIG. 11, both side edges 11 of the outer peripheral paper 10 are gathered and folded 12 on the soft board annular disk portion 2 on the end face, and are bonded with a suitable adhesive, for example, a hot melt. Complete basic packaging. Gathering is automated using a well-known chrysanthemum blade. In this state, the outer periphery of the steel sheet coil is formed by the outer peripheral paper 10 and the inner periphery is the insertion cylindrical portion 4.
The end face is completely covered by the annular disk portion 2 of the soft board 1, and the outer and inner peripheral edges are covered and protected.
Unless there are strict requirements, steel coils can also be shipped in this basic packaging.

In the case of an object to be packaged which requires a high degree of protection against mechanical damage, such as the above-mentioned loco-coil, etc., from the preferred packaging form shown in FIGS. It is desirable to pack up to the shape of.

The first step of the preferred packaging involves winding the outer peripheral board 18 by an automated operation, as shown in FIG. The outer peripheral board 18 has a thickness of about 2 to 3 mm and a coil width W.
The width is almost the same as that of the soft board 1
Alternatively, the same or different type of end board 14 described below can be used.

Next, as shown in FIG. 13, donut-shaped end boards 14 are attached to both ends of the steel coil. The end board 14 is preferably a polyethylene laminate liner having a thickness of 1 to 2 mm, which is heat-sealed or hot-melt-bonded by an automatic operation. One (left side in the figure) of the end face board 14 shows a cut 15 at the inner edge of the center hole, and this cut 15 is connected to the other (right) board 14.
Is folded inward 16 as described above, and inserted into the inner periphery of the cylindrical portion 4 inserted earlier. End board 1
As shown by the broken line in FIG.
Partly overlaps with 2.

Next, when the article to be packaged is a lomo coil, it is preferable to wind the outer peripheral board 18 once and then wind the outer peripheral thin iron plate 20 as shown in FIG. The winding of the outer thin iron plate 20 can be performed automatically or semi-automatically. As a result, the outer peripheral surface of the lomo-coil is formed on the outer peripheral paper 10 (FIG. 11) and the outer peripheral board 18 (1).
3) and the three layers of the outer thin iron plate 20 so that the moisture-proof, rust-proof and impact resistance are perfect.

In order to prevent the outer thin steel plate 20 from being pressed down or gaps on both sides and to more completely protect the outer peripheral edge of the coil,
As shown in FIG. 14, the edge tape 22 is wound around both side edges. The edge tape 22 is preferably a foamed polyethylene tape having a thickness of about 5 mm, and preferably has a firing rate of about 30 to 40 times.

The steel sheet coil can be shipped with the appearance as shown in FIG. Since the outer peripheral surface is covered with the thin iron plate 20, it is protected from damage due to piercing and the like, and the end surface is also protected by the internal soft board 1 and the end surface board 14 thereon, so that it is mechanically damaged. Nothing. And since both edges are protected by the edge tape and the coil is pressed firmly so that the winding of the coil does not loosen, there is no loosening or rubbing between layers even if the coil is rolled anymore, There is no risk of quality loss.

However, if more advanced and more complete protection is desired, as shown in FIG.
4 and the inner peripheral iron plate 28 may be attached. End cap 2
In FIG. 15, one is already attached to the end face and the other is close to the end face to be attached thereto. End cap 2
Numeral 4 has an inwardly folded edge 25 on the outer circumference, and this inner diameter is fitted so as to rub against the outer circumference of the edge tape.
A fold 26 is also formed on the inner circumference of the center hole of the end cap, and this slidably fits on the inner wrap 16 of the end face board 14 previously attached. Such mounting of the end cap 24 can be performed by an automatic device.

Next, an inner peripheral iron plate 28 rounded into a cylindrical shape is inserted into the center hole of the end cap 24. This insertion is performed by an automatic device. The length of the inner peripheral iron plate 28 is substantially equal to the distance between the inner diameters of the pair of end caps 24 fitted at both ends, and both ends of the inner peripheral iron plate are respectively seen through the edges of the center holes of both end caps.

A pair of inner diameter rings 30 which are tightly fitted to the inner periphery of both ends of the inner peripheral iron plate 28
Complete packaging, particularly suitable for lomocoils, is completed. The inner diameter ring 30 has a short cylindrical portion 31 fitted into the inner periphery of the inner peripheral iron plate 28, and a flange portion 32 slidably in contact with the radial surface of the end cap 24. As a result, the inner peripheral iron plate 28 and the end cap 24 are integrated, and the steel plate coil is completely covered with a metal material, particularly a thin iron plate, on the entire outer periphery, end surface, and inner periphery. The coated steel coil is shipped after being hooped by a plurality of steel bands.

FIG. 16 is a schematic plan view of a packing line for performing the above-described packing process. In the drawing, reference numeral 34 denotes a transport line in a steel coil manufacturing process for transporting the steel coil C in a direction perpendicular to the center line thereof, and reference numeral 36 denotes a transport line in a packing process for transporting the steel coil in a direction perpendicular to the center line thereof. The two transfer lines 34 and 36 are connected at a connection position 38. At the connection position 38, a measuring device (not shown) for measuring the width and the inner and outer diameters of the steel sheet coil C is provided.

Along the transport line 36, a mounting device 40 for the end surface abutting soft board 1, a storage device 42 for the soft board 1, an insertion device 44 for the insertion cylindrical portion 4, a storage device 46 for the cylindrical portion 4, an outer peripheral board 18, a winding device 52 for the end board 14, a winding device 52 for the outer peripheral thin steel plate 20, an edge tape supply device 54, the end cap 2.
A four-mounting device 56, an inner peripheral iron plate inserting device 58, an inner diameter ring mounting device 60, an inner diameter ring storage device 62, and the like are provided. These devices operate so as to provide a packaging material of a required size and shape based on a signal from a measuring device for measuring the dimensions of each part of the steel sheet coil C.

The inner ring mounting device 60 according to the present invention comprises:
As described above, it is disposed near the end of the packing transport line 36. Hereinafter, the inner ring mounting device 60 will be described with reference to FIGS. FIG. 1 schematically shows a main part of the device 60, in which an inner diameter ring 30 has an inner diameter O of a steel sheet coil C.
Are shown step by step. Device 60
Is a bogie 66 having a horizontal shaft portion 64 that slidably supports one inner diameter ring 30, and a pusher 6 disposed on the outer periphery of the shaft portion 64 and capable of pressing the inner diameter ring 30 in the axial direction.
8, an expandable and contractible member 70 provided at the tip of the shaft portion 64, and a storage device 62 for the inner diameter ring 30 shown in FIG.
6 mainly includes an unloading moving device 72 that picks up the inner diameter ring 30 from the storage device 62 and mounts it on the shaft portion 64.

As shown in FIG. 3, the bogie 66 is composed of an upper bogie 66a and a lower bogie 66b which are divided into upper and lower parts, and the lower bogie 66b extends along the first track 74 in the direction of arrow a in FIG. It is possible to move back and forth. The upper carriage 66a is movable in the left-right direction in FIG. 3 along the second track 76 on the upper surface of the lower carriage 66b. First orbit 74
Is supported by a support member 78.
Are vertically movable along a vertical fixed rail 80. Therefore, the carriage 66 can move in the front-back, left-right, and up-down directions.

As shown in FIG. 4, the expansion member 70 has four arms 82 extending radially or vertically and horizontally which can be expanded and contracted in the radial direction. The number of the arms 82 may be any number as long as the later-described centering of the steel plate coil C inner diameter portion O can be effectively performed, and therefore at least three are necessary, and in practice, four may be used as in this embodiment. . These arms 82
The opening / closing mechanism is as follows. That is, the shaft portion 64
Of the rocking member 8 via a vertical X axis and a horizontal Y axis
4 is connected, and a screw 86 that can move forward and backward with forward / reverse rotation protrudes in a horizontal direction from a front portion of the swing member 84. A bracket 88 is rotatably mounted on the tip of the screw 86, and the four arms 82 are swingably connected to the bracket 88 by pins 90. The intermediate portion of the arm 82 is connected by a link plate 92 to a fixed bracket 94 on the front surface of the swing member 84 with a pin. Arm 82
An arc-shaped pressing member 96 is pin-connected to the tip of the bracket, and a bracket 98 on the back surface of the pressing member 96 and the fixed bracket 94 are connected by a tension spring 100.

A support bracket 102 is provided at the tip of the shaft portion 64.
And two optical sensors including a pair of light emitters 104 and a pair of light receivers 106 are provided at the front of the support bracket 102 as shown in FIG. In these optical sensors, one optical sensor makes the two optical paths 108 vertical, and the other optical sensor makes the two optical paths 110 horizontal. On the other hand, the swinging member 84 has two light blocking members 112 and 11 so as to be able to block exactly the middle of the two vertical and horizontal optical paths 108 and 110, respectively.
4 is fixed. The thickness or width of the light blocking members 112 and 114 is slightly smaller than the width of the two optical paths 108 and 110. When the swinging member 84 swings up and down or left and right from the horizontal state, the optical path of one of the optical sensors is changed. Is the light shielding member 1
12 (114). The detection result of the optical sensor is transmitted to the up-down and left-right movement mechanisms of the carriage 66, and the upper carriage 66a or the shaft 64 is adjusted by an adjusting means (not shown) so that the swing angle of the swing member 84 becomes zero. The vertical and horizontal positions are adjusted.

The storage device 62 of the inner diameter ring 30 is provided with an endless belt 118 driven by a motor 116 as shown in FIG.
Having. On the surface of the endless belt 118, a plurality of left and right comb-teeth-shaped holding plates 120 are erected at regular intervals as shown in FIG. The lower end of the inner diameter ring 30 is
20 and are stored in an upright state. The removal of the inner diameter ring 30 is performed at the right end in FIG. 6, and the refilling is performed manually at the left end. Endless belt 1
Reference numeral 18 is intermittently driven clockwise by an amount corresponding to the removal of the inner diameter ring 30.

As shown in FIG. 2, three storage devices 62 are provided on each side of the transfer line, that is, a total of six storage devices 62 in order to correspond to the dimensions of a plurality of types of inner diameter rings 30. These storage devices 62 are arranged at right angles to the transport line 36 and adjacent to each other.
A rail 122 parallel to 6 is provided. The inner ring 30 is taken out from the inner ring storage device 62, and the bogie 6 is removed.
The take-out moving device 72 shown in FIG. 8 is used to move to the shaft portion 64 of FIG. The device 72 includes the rail 12
A ring carrier 126 that can travel along 2 and a gripping claw 128 disposed on the ring carrier 126 are provided. The gripping claw 128 can be moved up and down by a vertical cylinder 132 provided on a carriage 126 via a bracket 130, and can be moved back and forth by a horizontal cylinder 134. That is, the rod 132 of the vertical cylinder 132
The upper support member 136 is attached to a, and a horizontal cylinder 134 is pivotally connected to the upper support member 136 by a pin. The upper support member 136 is connected to the lower support member 138 by two parallel link plates 140, and the rod 134 a of the horizontal cylinder 134 is connected to one of the parallel link plates 140. The lower support member 138 has a vertical cylinder 14
2 is pivotally connected to a pin. Lower support 1
A gripping claw fixing claw 144 and a movable claw 146 are provided at the lower end of the 38, and the movable claw 146 is closed and opened by the expansion and contraction of the rod 142 a of the vertical cylinder 142.

Next, the operation until the inner ring 30 is mounted will be described. The steel sheet coil C is transported by the transport line 36 to the front of the carriage 66 and stopped. The carriage 66 has an inner diameter ring 3 corresponding to the inner diameter of the conveyed steel sheet coil C.
Move to the front end of the storage device 62 storing zero and extend the vertical cylinder 132. At this time, the lower support 13
8 is located away from the innermost ring 30 at the forefront of the storage device 62 as shown by the chain line in FIG. In this state, the horizontal cylinder 134 is shortened. At this time, the movable claw 1
Reference numeral 46 denotes an open state, that is, a state in which the vertical cylinder 142 extends and faces upward. Horizontal cylinder 13
4 is shortened, the fixing claw 144 is moved to the innermost ring 3 at the forefront.
0, and inserted into the vertical cylinder 14 in this state.
2, the movable pawl 146 is closed and the inner diameter ring 30 is closed.
Is held between the fixed claw 144 and the cylindrical portion.

The horizontal cylinder 134 extends, the vertical cylinder 142 shortens, and the ring carrier 126 moves to the front of the truck 66. The vertical cylinder 132 is driven to align the height position of the inner diameter ring 30 with the height position of the shank 64 of the bogie, and then the horizontal cylinder 134 is shortened to fit the inner diameter ring 30 around the outer circumference of the shaft portion 64. I do. The vertical cylinder 142 is extended after this fitting, and the movable pawl 146 is opened to separate from the inner diameter ring 30. The horizontal cylinder 134 extends again to separate the lower support member 138 or the movable claw 146 and the fixed claw 144 from the inner diameter ring 30, and the ring carrier 126 escapes from the front of the carriage 66 to grasp the next inner diameter ring 30.

The bogie 66 having the shaft portion 64 that has received the inner diameter ring 30 advances and approaches the steel plate coil C, and stops when the expanding / contracting member 70 is inserted sufficiently deep into the inner diameter portion O. Next, the screw 86 is rotated in the retracting direction, and as a result, the arm 82 expands, and the pressing member 96 contacts the inner peripheral surface of the inner diameter portion O (the inner peripheral surface of the inner peripheral iron plate). At this time, the backlash of the screw 86 is absorbed by the tension spring 100,
Irregularities in the spread angles of the arms 82 are prevented.

The position of the inner diameter portion O of the steel plate coil C stopped at the front of the truck 66 slightly deviates from the position of the shaft portion 64 of the truck 66. This is based on an unavoidable error of each part of the apparatus. However, if the inner ring 30 is fitted to the inner diameter part by driving the pusher in a state where the position is misaligned, the inner ring 30 is fitted in an eccentric or inclined state. Between the inner diameter ring 30 and the end cap 24 or the inner diameter ring 30.
A gap remains between the inner iron plate 28 and the inner peripheral iron plate 28. In the present invention, after the shaft portion 64 and the inner diameter portion O are centered, the inner diameter ring 3
One feature is that the occurrence of the above-mentioned gap is prevented by fitting 0.

The centering operation is performed as follows. That is, when the arm 82 expands and the pressing member 96 contacts the inner peripheral surface of the inner peripheral iron plate 28, the presence or absence of vertical and horizontal misalignment between the shaft portion 64 and the inner diameter portion O is determined by light. The presence or absence of light blocking of the sensor is detected, and based on the detection result, the support member 78 of the carriage 66 is moved up and down or the upper carriage 66a
Is moved left and right, and stopped at the same time as the light from the optical sensor passes. Thus, the axis of the shaft portion 64 and the axis of the inner diameter portion O are accurately aligned. In this state, the pusher 68 is driven, and the inner diameter ring 30 is fitted to the inner diameter portion O. Inner ring 3
After fitting 0, the expansion / contraction member 70 is pulled out from the inner diameter portion O by the reverse operation, and the carriage 66 is retracted, and the steel sheet coil C is transported to the hoop hooking step.

Next, a modified embodiment of the inner ring mounting device of the present invention will be described with reference to FIGS. FIG. 18 is a plan view of FIG. In FIG. 17, reference numeral 150 denotes a moving head having a horizontal columnar shape, and an expansion / contraction member 70 similar to that shown in FIG. However, the expanding / contracting member 70 is not of the swing type as shown in FIG. 4, but is integrally formed with the moving head 150 in a coaxial state. Further, an inner diameter ring 30 is temporarily held on the outer peripheral surface of the moving head 150, and the inner diameter ring 30 is moved by hydraulic or pneumatic pusher cylinders 152 disposed at four locations on the outer peripheral surface of the moving head 150. It can be pushed in the axial direction of 150, that is, in the axial direction of the inner diameter portion O.

The moving head 150 is vertically movably supported on a side rail 156 of a column 154 disposed vertically on the carriage 66 while an appropriate braking force is constantly applied. The base end 154a of the column 154 is slidably engaged with the upper surface rail 138 provided on the carriage 66 in a transverse direction, that is, in a direction orthogonal to the side rail 156, with an appropriate braking force. I have. Since the braking force is applied, the moving head 150 remains stopped at a fixed position unless an external force equal to or more than a predetermined force is applied. The bogie 66 itself can move back and forth in the axial direction of the steel sheet coil C.

In such an inner diameter ring mounting apparatus, the moving head 150 can be simultaneously moved to a position aligned with the center of the inner diameter portion O simply by expanding the expanding / contracting member 70 in the inner diameter portion O. That is, when the expanding / contracting member 70 is expanded in the inner diameter portion O, the pressing member 96 at the tip thereof comes into contact with the inner peripheral surface of the inner diameter portion O, and the center of the expanding / contracting member 70 is aligned with the center of the inner diameter portion O. At the same time, the moving head 150 moves integrally with the expanding / contracting member 70 due to the reaction force received by the pressing member 96 from the inner peripheral surface of the inner diameter portion O, so that the center of the moving head 150 is also aligned with the inner diameter portion O. By utilizing the reaction force received by the expanding / contracting member 70 in this manner, it is possible to omit the detecting means such as the light projector and the light receiver of FIG.
Since no time is required for adjusting or moving the movable head 150, the inner ring 30 can be mounted more quickly.

The V-block 140 is normally used to support the lower surface of the steel coil C and raise the steel coil C to a predetermined height position. The V-block 140 has an isosceles triangle V-shaped groove 142. Since the center position of the steel sheet coil C in the horizontal direction is determined, V
If the center of the groove 142 and the carriage 66 or the moving head 150 is aligned, the upper rail 138 is not particularly required, and the moving head 150 need only be configured to be movable only in the vertical direction. However, the diameter of the inner diameter portion O is steel plate coil C
Therefore, at least a vertical movement mechanism of the moving head 150 is necessary.

[0042]

As described above, according to the present invention, since the inner ring is fitted with no misalignment with the inner diameter of the steel plate coil, the inner ring is pushed in smoothly and a gap is formed around the inner ring. Can not. Also, since the expanding / retracting member fits the inner diameter ring in a state where the inner peripheral surface of the inner diameter portion is pressed and expanded by pressing the inner peripheral iron plate, the diameter reduction by springback of the inner peripheral iron plate is corrected in advance and the inner diameter is corrected. It does not interfere with the pushing of the ring.

[Brief description of the drawings]

FIGS. 1A, 1B, and 1C are cross-sectional views of an inner diameter portion of a steel sheet coil sequentially showing a fitting operation of an inner diameter ring.

FIG. 2 is a plan view of the inner ring mounting device.

FIG. 3 is a front view of the cart.

FIG. 4 is a side view of a shaft of the bogie.

FIG. 5 is a front view of a shaft portion.

FIG. 6 is a side view of a storage device for the inner diameter ring.

FIG. 7 is a front view of the storage device.

8A is a side view of the gripping arm, and FIG. 8B is a front view thereof.

FIG. 9 is a perspective view showing a first stage of packaging of the steel sheet coil.

FIG. 10 is a perspective view showing a second stage of packaging of the steel sheet coil.

FIG. 11 is a perspective view showing a third stage of packaging of the steel sheet coil.

FIG. 12 is a perspective view showing a fourth stage of packaging of the steel sheet coil.

FIG. 13 is a perspective view showing a fifth stage of packaging of the steel sheet coil.

FIG. 14 is a perspective view showing a sixth step of packaging the steel sheet coil.

FIG. 15 is a perspective view showing a seventh stage of packaging of the steel sheet coil.

FIG. 16 is a plan view of a step of packing a steel sheet coil.

FIG. 17 is a side view of a modified example of the inner diameter ring mounting device.

FIG. 18 is a plan view of the same device.

[Explanation of symbols]

 C Steel plate coil O Inner diameter portion 30 Inner diameter ring 60 Inner diameter ring mounting device 62 Inner diameter ring storage device 64 Shaft portion 66 Cart 68 Pusher 70 Expanding / contracting member 72 Inner diameter ring take-out moving device 104 Light emitter 106 Light receiver 108, 110 Optical path 112, 114 Light shielding member

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Masao Yamakawa 2-18-6 Imai, Chuo-ku, Chiba Affinity Package Co., Ltd. Chiba Works (72) Inventor Kenji Iwano 2- 18-6 Imai, Chuo-ku, Chiba-shi Affinity Package Co., Ltd. Chiba Works (72) Inventor Masao Iwata 2-18-6 Imai, Chuo-ku, Chiba Affinity Package Co., Ltd. Chiba Works (72) Inventor Shigeki Taniguchi 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Kawasaki Inside the Chiba Works, Steel Works (72) Inventor Makoto Ebara 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Prefecture Inside the Chiba Works, Chiba Works (72) Inventor Yoshinari Hayashida 1-1-8 Nishide-cho, Hyogo-ku, Kobe City God (56) References JP-A-3-281129 (JP, A) JP-A-2-23929 (JP) , U) (58) Field surveyed (Int. Cl. ⁶ , DB name) B23P 19/02 B25J 17/02

Claims (5)

(57) [Claims] (A) a step of enlarging a radially expandable and contractable member within an inner diameter portion of a steel sheet coil until it comes into contact with an inner peripheral surface of an inner diameter portion; (b) a step of detecting a center position of the expanding and contracting member; (C) moving an inner diameter ring that can be fitted to both ends of the inner diameter portion of the steel sheet coil to match the center position of the expansion member based on the detection result;
(D) a step of axially moving and fitting the inner diameter ring to the end of the inner diameter portion to fit the inner diameter ring in the packing of the steel sheet coil. (A) moving an expanding / contracting member radially expandable and contractable in the inner diameter portion of the steel plate coil and an inner diameter ring capable of being fitted to both ends of the inner diameter portion of the steel plate coil in the center axis direction of the expanding / contracting member; Make the axis of the holding means common to the holding means,
(B) expanding the expansion / contraction member until it comes into contact with the inner peripheral surface of the inner diameter portion; and (c) moving the inner diameter ring of the holding means in the axial direction with respect to the end of the inner diameter portion to fit the inner ring. Inner ring mounting method for packaging steel coil. 3. A trolley disposed laterally of the horizontally disposed steel coil and capable of moving back and forth in the axial direction of the steel coil and being adjustable in up, down, left and right directions; Provided, an expanding / contracting member capable of expanding and contracting in the radial direction within the inner diameter portion of the steel sheet coil, and a detecting means disposed between the truck and the expanding / contracting member, for detecting a relative movement amount of the expanding / contracting member with respect to the truck, Adjusting means for adjusting and moving the bogie vertically and horizontally based on the detection result of the detecting means so as to make the relative movement amount zero, and an inner diameter ring which can be fitted to both ends of the inner diameter part of the steel sheet coil, A holding means for movably holding the expanding / contracting member in the center axis direction; and a moving means for axially moving and fitting the inner diameter ring held by the holding means to both ends of the inner diameter portion. For packing That the inner diameter ring mounting device. 4. The apparatus according to claim 1, wherein the expanding / contracting member has a plurality of arms which can be opened and closed radially in a radial direction of an inner diameter portion of the steel coil. 5. The apparatus according to claim 1, wherein the detecting means comprises first detecting means for detecting a vertical swing angle of the expanding / contracting member, and second detecting means for detecting a horizontal swing angle. The first and second detection means are constituted by a light emitter and a light receiver arranged on the cart side, and a light shielding member arranged on the expansion and contraction member side and arranged between the light emitter and the light receiver, 2. The inner diameter of a steel coil according to claim 1, wherein the light shielding member blocks light incident on the light projector when the expansion member forms a swing angle with respect to the front-rear direction of the carriage. Ring mounting device.