JP3031864B2 - Sleeve changing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sleeve changing device, and more particularly, to a rubber, synthetic resin, paper, iron, etc. used in a steel strip winding or unwinding machine in a steel process line. The present invention relates to a sleeve changing device for changing a cylindrical sleeve used as a material.

[0002]

2. Description of the Related Art In a steel processing line, a steel strip wound in a coil shape is rewound (pay-off reel).
And then rolled, annealed or surface-treated in the line, and then wound on the delivery side (tension reel)
To be wound again into a coil and sent to the next step or to the user.

At this time, in order to prevent the inner diameter of the coil from being damaged, a sleeve is generally mounted on a reel mandrel of a payoff reel or a tension reel. Also, in order to respond to the next process or various reel diameters of the user, for example, for a 20-inch tension reel,
It has several types of sleeves, such as those for 24 inches, and replaces these sleeves as necessary to wind up the steel strip.

FIG. 7 is a plan view showing a conventional sleeve replacement state, and FIG. 8 is a sectional view taken along the line CC in FIG. 7 and 8, reference numeral 1 denotes a winding machine (tension reel) on which a 20-inch rubber sleeve A is mounted, 1A denotes a reel mandrel, 2 denotes a coil car, 3 denotes a coil skid, 4
Is a steel strip, 5 is a cylinder such as a hydraulic cylinder, 6 is a coil saddle, 7 is a running path of a coil car, and B is a 24-inch rubber sleeve placed off-line.

FIGS. 7 and 8 show that a steel strip 4 is wound into a coil in a required length, transported by a coil car 2 onto a coil skid 3 outside the line, and transported to the next step by an overhead crane (not shown). Later, the state immediately before the sleeve replacement operation is started is shown. From here, first, the coil car 2 is moved to the lower part of the tension reel 1, and then the cylinder 5 is operated to raise the upper surface of the coil saddle 6 until it comes into contact with the outer surface of the sleeve A. Then, the diameter of the reel mandrel portion 1A is reduced to release the constraint on the inner surface of the sleeve A, and the sleeve A is supported by the coil saddle 6, and then the coil car 2 is moved to the off-line side as it is.

When the coil car 2 moves off-line,
The sleeve A on the coil saddle 6 is replaced with a sleeve B for the next use by an overhead crane or manually. Then, the height of the tension reel 1 is made to coincide with the center of the sleeve B,
The coil car 2 is moved to the line side, and the sleeve B is inserted into the tension reel 1. After the insertion, the coil saddle 6 is lowered, the coil car 2 is retracted off-line, and the sleeve replacement operation is completed.

[0007]

When the above-mentioned sleeve replacement work is performed manually, there is a problem in safety because the work is heavy (for example, a rubber sleeve weight: several hundred kg) and involves danger. On the other hand, when replacing using an overhead crane,
It takes time and there is a problem that the production efficiency of the line is hindered.

In order to solve this problem, a recent new line is provided with, for example, an automatic sleeve changing device as shown in a sectional view in FIG. 9 (for example, see Japanese Utility Model Application Laid-Open No. 4-54507). As shown in FIG. 9, this (conventional) automatic sleeve changing apparatus includes a coil car 2 and a sleeve car which is connected to the coil car 2 on the line side (the side of the winder 1) and runs together with the coil car 2 to automatically change the sleeve. Consists of ten. The same members as those in FIG. 8 are denoted by the same reference numerals, and description thereof will be omitted. This automatic sleeve changing device is used for the sleeve car 10
Is provided with two pockets for storing sleeves A and B, and the two pockets are alternately aligned with the reel center (the axis of the reel mandrel portion 1A) so that the sleeves A and B can be automatically replaced. I have.

However, in this apparatus, a large tunnel is necessary for the sleeve car 10 in front of the coil car 2 to be inserted into the lower part of the main body of the tension reel 1, and a conventional tunnel without such a tunnel is required. There is a drawback in that it is too costly to apply it to a die reel, because it requires a major remodeling of the existing foundation. In addition, since this device is permanently installed, oil is covered with rust-preventive oil that falls from the steel strip coil, and at the start of winding the tip of the steel strip, a slip occurs between the steel strip and the sleeve, making smooth winding work possible. There is a problem that frequent cleaning is required because it becomes impossible.

In view of the above-mentioned problems of the prior art, the present invention aims to provide a sleeve changing apparatus which has a compact structure, can be applied to an existing conventional reel at low cost, and does not require cleaning of oil stains. .

[0011]

SUMMARY OF THE INVENTION The present invention relates to a sleeve exchanging apparatus for automatically exchanging a sleeve mounted on a winder / rewinder of a steel strip coil manufacturing / processing line.
The steel strip coil and the sleeve are reciprocated between the rewinding machine and the coil skid. The steel strip coil and the sleeve are inserted / extracted with respect to the winding / rewinding machine. A sleeve take-out device and a sleeve transfer device, the sleeve take-out device comprising: an arm that can approach and separate from the sleeve on the coil saddle; and a chuck that is attached to the tip of the arm and that can hold the sleeve. A sleeve saddle that supports the sleeve lowered from the upper surface and can be moved closer to and away from the coil car, a centering device that can center the sleeve on the upper surface of the sleeve saddle, and a tilter that tilts the sleeve saddle and transfers the sleeve on the upper surface to the coil saddle And a device for exchanging sleeves. .

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a plan view showing an example in which a sleeve changing device of the present invention is applied to a winding machine. In FIG. 1, reference numeral 11 denotes a sleeve removing device, and reference numeral 12 denotes a sleeve transfer device. The same members as those in FIG. Note that the same applies to a case where the present invention is applied to a rewinding machine.

As shown in FIG. 1, the sleeve exchanging device of the present invention (hereinafter referred to as "the device of the present invention") reciprocates between a winder 1 and a coil skid 3 to form a steel strip coil (not shown). And a sleeve unloading device 11 and a sleeve reloading device which are provided on the side of the traveling path 7 of the coil car 2 for inserting and removing the sleeves A and B with respect to the reel mandrel portion 1A of the winding machine 1 and at a position which does not interfere with the operation of the coil car 2. Device 12.

FIG. 2 is a front view of the sleeve removing device 11.
FIG. 3 is a plan view taken along the line XX of FIG. 2, and FIG.
FIG. 4 shows a front view of FIG. 12, and FIG. 5 shows a side view thereof. 2 and 3, 20 is a chuck, 21 is a cylinder, 22,
28 is a shaft, 23 is an arm, 23a is a chuck frame, 24 is a lateral guide, 25 is a lifting frame, 25a and 25b are wheels, 26 is a lifting guide frame, 27 and 31 are motors, 29 is a sprocket,
Reference numeral 30 denotes a chain, 32 denotes a gear, 33 denotes a rack, and 34 denotes a counter weight. The same members as those in FIG.

4 and 5, reference numeral 40 denotes a sleeve saddle, 41, 44, and 49 cylinders, 42 a shaft, 43 a sleeve truck, 45 a base, 46 a centering device, 47 a centering block, and 48 a centering block. This is a guide, and the same members as those in FIG. As shown in FIGS. 2 and 3, the sleeve take-out device 11 includes an arm 23 that can approach and separate from the sleeve A on the coil saddle 6, and a chuck 20 that is attached to a chuck frame 23a at the tip of the arm 23 and can grip the sleeve A. Prepare.

The chuck 20 is composed of a pair of fingers provided one by one at both ends of a chuck frame 23a. The chuck 20 is pivotable about a shaft 22 by operating a chuck opening / closing cylinder 21 mounted on the chuck frame 23a. Axis 22 by turning
The pair of fingers can open and close with the fulcrum as a fulcrum to grip the sleeve A. The arm 23 has a rack 33 on both ends, and both ends are slidably supported in the horizontal guide direction by a horizontal guide 24 of a lifting frame 25, and a motor attached to the lifting frame 25.
Since it is configured to mesh with the gear 32 rotated by the gear 31, the gear can be moved close to and away from the coil saddle 6 in the lateral direction.

The elevating frame 25 has wheels 25a and 25b rotatably abutting on the elevating guide frame 26. The elevating frame 25 is connected to a shaft 28 of an elevating drive motor 27 provided on the upper part of the elevating guide frame 26. Since it is connected to one end of a chain 30 which is wound around a fixed sprocket 29 and has a counterweight 34 hung at the other end, the arm 23 supported by the elevating frame 25 is also arranged vertically with respect to the coil saddle 6. Can be close and spaced.

As shown in FIGS. 4 and 5, the sleeve transfer device 12 has a sleeve saddle 40 which supports the sleeve B lowered from the chuck on the upper surface and can be closely separated from the coil saddle 6 of the coil car, and a sleeve saddle 40. A centering device that can center the sleeve B on the upper surface, and a tilting device that can tilt the sleeve saddle and transfer the sleeve B on the upper surface to the coil saddle are provided.

Since the sleeve saddle 40 is mounted on the sleeve carriage 43 which is urged by the cylinder 44 and can be guided and moved by the base 45, the sleeve saddle 40 can be moved close to and away from the coil saddle 6.
Two sets of centering devices 46 are provided on the base 45 so as to sandwich both longitudinal ends of the sleeve B. Each set includes a centering block 47, a guide 48, and a cylinder 49. It is configured to be able to move along. Therefore, one of the centering blocks 47 is used as a reference,
By pressing, the sleeve B can be centered.

The tilting device comprises a shaft 42 for supporting one end of the sleeve saddle 40 facing the coil saddle 6, and a cylinder 41 for supporting the other end. Therefore, the sleeve saddle 40 can be tilted around the axis 42 by the operation of the cylinder 41, and the sleeve B on the upper surface thereof can be transferred to the coil saddle 6. Since the apparatus of the present invention is compact as can be understood from the above configuration, it is possible to install the existing equipment of the conventional process line only by minor modification without requiring a large-scale foundation work under the reel.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method of using the apparatus of the present invention will be described below with reference to FIG. FIG. 6 is an explanatory view of the operation sequence of the apparatus of the present invention. In FIG. 6, [1], [2]... Represent the operation sequence, and the same members as those in FIG. Omitted. FIG. 6 is appropriately referred to in the description of the present embodiment together with FIGS. 1 to 5 described above.

The present embodiment shown in FIG. 1 is applied to a winding machine (tension reel) 1, and the sleeves A and B are not particularly limited, but are, for example, rubber sleeves having a diameter of 20 inches and 24 inches, respectively. At the beginning of the sleeve replacement operation, the rubber sleeve A is inserted into the reel mandrel portion 1A of the winding machine 1. After winding the steel strip around the rubber sleeve A in a coil shape and extracting the steel strip coil with the coil car 2, the inner diameter of the next processing coil is different.
Will be described.

First, the coil car 2 travels below the reel mandrel 1A. Next, after the coil saddle 6 is raised to support the rubber sleeve A, the diameter of the reel mandrel portion 1A is reduced. The reel mandrel portion 1A is configured so that its shaft diameter can be enlarged or reduced in order to facilitate the extraction of the steel strip coil and the extraction and insertion of the rubber sleeve.

Next, the coil car 2 retreats at the same height and stops right beside the sleeve removing device 11. With this position as the rubber sleeve replacement position, the replacement operation from the rubber sleeve A to the rubber sleeve B is started. First, the motor attached to the lifting frame 25 of the sleeve removal device 11
31 is driven to move the chuck 20 forward from its standby position to a position overlooking the coil car 2 (FIG. 6 [1]).

Next, the motor 27 for driving up and down is driven to lower the chuck 20 to a position where the chuck 20 can grip the rubber sleeve A and stop at that position (FIG. 6 [2]).
Next, the chuck opening / closing cylinder 21 is raised, and the chuck is opened.
20 performs a closing operation by turning the pair of fingers around the axis 22 in a direction approaching each other to grip the rubber sleeve A (FIG. 6 [3]). When the length of the rubber sleeve is sufficiently longer than the coil saddle 6, it is only necessary to open and close the chuck 20. However, when the length of the rubber sleeve A is shorter than the length of the coil saddle 6, the chuck 20
It is preferable to provide a groove through which the tip of the finger can enter.

Next, the lifting drive motor 27 is driven in the reverse direction to slightly raise the chuck 20 holding the rubber sleeve A (FIG. 6 [4]). Next, the motor 31 is driven in the reverse direction to retract the chuck 20 to just above the sleeve transfer device 12 and wait there (FIG. 6 [5]). At the same time, the coil saddle 6, which has been placed on the rubber sleeve A and held and picked up by the chuck 20 and becomes unloaded, descends to the predetermined height position (the rubber sleeve B receiving position) of the sleeve transfer device 12. (FIG. 6 [6]).

Next, the cylinder 44 of the sleeve transfer device 12 is operated, and the sleeve saddle with the rubber sleeve B mounted on the upper surface is operated.
The sleeve carriage 43 on which the 40 is mounted is advanced to approach the coil saddle 6 (FIG. 6 [7]). Next, the cylinder 41 is operated, and the sleeve saddle 40 is tilted until the rubber sleeve B rolls and is replaced on the coil saddle 6 (FIG. 6).
[8]). If there is a concern that the rubber sleeve B may jump out of the coil saddle 6 due to inertia when the rubber sleeve B is transferred, a stopper, a bumper, or the like (not shown) may be mounted on the side of the coil saddle 6 or on the coil car 2 on which the coil saddle 6 is mounted. It is preferable that it is provided so as to protrude from the upper surface of the coil saddle 6 from the fixing base 6.

When the transfer of the rubber sleeve B is completed in this way, the cylinders 41 and 44 are sequentially operated, and the sleeve transfer device is operated.
Retract 12 to its original position (Fig. 6

[9], [10]). After retreating the sleeve carriage 43, the coil car 2 moves to the position of the winder 1, and the coil saddle 6 rises to a position where the axis of the sleeve B on the upper surface coincides with the reel center of the reel mandrel portion 1A. And the reel mandrel part 1
A rubber sleeve B is inserted into A. On the other hand, in the case of the sleeve removal device 11, the motor 27 for driving up and down is driven,
The chuck 20 is lowered to a position where the rubber sleeve A held by the chuck 20 can be placed on the sleeve saddle 40 and stopped (FIG. 6 [11]).

Next, the cylinder 21 operates to open the chuck 20, open the rubber sleeve A, and deposit it in the sleeve saddle 40 (FIG. 6 [12]). Finally, the lifting drive motor 27 is driven to raise the chuck 20 to the original position (FIG. 6).
〔13〕). Thus, a series of sleeve replacement work is completed.

The centering of the rubber sleeve is performed by operating the cylinder 49 before the forward movement of the sleeve carriage 43 or after the rubber sleeve removed from the winding machine 1 is placed on the sleeve saddle 40. As is clear from the use procedure of the present embodiment, by using the device of the present invention,
The sleeve can be automatically replaced without manual intervention or an overhead crane, etc., thereby reducing work load, releasing from unsafe work, and improving productivity by shortening the replacement time.

Incidentally, the sleeve removing device 11 of the present embodiment has a lifting mechanism as a mechanism for moving the chuck 20,
Although the configuration has two mechanisms of the horizontal movement mechanism, the same function can be provided by the configuration of the link mechanism. In the present embodiment, the case where the present invention is applied to a winding machine has been described.However, when the present invention is applied to a rewinding machine, the present invention can be used in the same manner, and when the sleeve is made of rubber. However, it is needless to say that the present invention can be applied to a sleeve made of synthetic resin such as Popalon (manufactured by Kuratore Kako), paper, iron, or the like.

[0032]

According to the present invention, the sleeve replacement work conventionally performed manually or by using an overhead crane or the like can be performed by slightly remodeling the existing equipment of the conventional process line without requiring large-scale foundation work under the reel. It is possible to achieve automation by simply performing such operations, thereby achieving excellent effects such as reduction of work load, release from unsafe work, and improvement of productivity by shortening replacement time.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example in which a sleeve changing device of the present invention is applied to a winding machine.

FIG. 2 is a front view of the sleeve removing device.

FIG. 3 is a plan view taken along the line XX of FIG. 2;

FIG. 4 is a front view of the sleeve transfer device.

FIG. 5 is a side view of the sleeve transfer device.

FIG. 6 is an explanatory diagram of an operation sequence of the device of the present invention.

FIG. 7 is a plan view showing a conventional sleeve replacement state.

FIG. 8 is a sectional view taken along the line CC in FIG. 7;

FIG. 9 is a sectional view of a conventional automatic sleeve changing device with a sleeve car.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Winding machine (tension reel) 1A Reel mandrel part 2 Coil car 3 Coil skid 4 Steel strip 5 Cylinder 6 Coil saddle 7 Running path 10 Sleeve car 11 Sleeve take-out device 12 Sleeve transfer device 20 Chuck 21, 41, 44, 49 Cylinder 22 , 28, 42 axes 23 Arm 23a Chuck frame 24 Lateral guide 25 Elevating frame 25a, 25b Wheel 26 Elevating guide frame 27, 31 Motor 29 Sprocket 30 Chain 32 Gear 33 Rack 34 Counter weight 40 Sleeve saddle 43 Sleeve carriage 45 Base 46 Centering device 47 Centering block 48 Guide A, B Sleeve (rubber sleeve)

(56) References JP-A-7-290143 (JP, A) JP-A-6-114437 (JP, A) JP-A-10-5866 (JP, A) (58) Fields studied (Int .Cl. ⁷ , DB name) B21C 47/24

Claims (1)

(57) [Claims] 1. A winding machine for a steel coil manufacturing and processing line.
A sleeve changing device for automatically changing a sleeve mounted on a rewinding machine. The sleeve changing device automatically reciprocates between a winding machine / rewinding machine and a coil skid to transfer a steel strip coil and a sleeve to the winding machine / rewinding machine. An arm which comprises a sleeve take-out device and a sleeve transfer device provided at a position on the side of the running path of the coil car to be inserted / extracted and which does not interfere with the operation of the coil car, wherein the sleeve take-out device can be moved close to and away from the sleeve on the coil saddle. And a chuck mounted on the tip of the arm and capable of gripping the sleeve, wherein the sleeve transfer device supports the sleeve lowered from the chuck on the upper surface, and is capable of approaching and separating from the coil car, and centering the sleeve on the upper surface of the sleeve saddle. Tilt the sleeve saddle and cover the sleeve on the top. Sleeve exchange device being characterized in that a reprint can tilting device to Rusadoru.