JPH105866A - Sleeve exchanging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sleeve exchanging device which is compact in structure and capable of being applied to an existing reel of the conventional type at a low cost, and unnecessary for cleaning of fouling with oil. SOLUTION: A sleeve exchanging device comprises sleeve delivery devices 20, 21 which are provided on each side of a traveling passage 7 of a coil car 2 and at the position not interfering the operation of the coil car, and capable of delivering sleeves A, B at the prescribed position between the coil car and the sleeve delivery devices, and a sleeve transfer arm which is built in a coil saddle 6 of the coil car and capable of delivering the sleeve on the coil saddle to the sleeve delivery device.

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. 4 is a plan view showing a conventional sleeve replacement state, and FIG. 5 is a sectional view taken along the line CC in FIG. 4 and 5, 1 is a winding machine (tension reel) on which a 20-inch rubber sleeve A is mounted, 1A is a reel mandrel, 2 is a coil car, 3 is 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. 4 and 5 show that a steel strip 4 is wound in a coil shape to a required length, conveyed by a coil car 2 onto a coil skid 3 outside the line, and conveyed to a 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. 6 (for example, see Japanese Utility Model Application Laid-Open No. 4-54507). As shown in FIG. 6, 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. 5 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, and the steel strip coil and the sleeve are inserted and extracted from the winding machine and the rewinding machine. It is characterized by comprising a sleeve transfer device that is provided as a set and can transfer a sleeve in a fixed position between the coil car and a sleeve transfer arm that is incorporated into a coil saddle of the coil car and can transfer a sleeve on the coil saddle to the sleeve transfer device. Is a sleeve exchange device.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a plan view around a winding machine to which a sleeve changing device according to the present invention is applied. It should be noted that the rewinding machine has the same configuration. In FIG. 1, reference numerals 20 and 21 denote sleeve transfer devices, and the same members as those in FIG. As shown in FIG. 1, the sleeve exchanging device of the present invention (hereinafter also referred to as the present device) has
First, the traveling path 7 between the winder 1 and the coil skid 3
The steel car coil (not shown) is pulled out of the winder 1 and the sleeves A and B are inserted into and pulled out of the winder 1 on both sides of the running path 7 of the coil car 2 and the coil car 2. A set of sleeve transfer devices 20 and 21 that can transfer the sleeves A and B to and from the coil car 2 in a fixed position is provided at a position that does not interfere with the above operations (insertion / extraction / running).

One of them is provided with a sleeve transfer arm which is incorporated in the coil saddle 6 of the coil car 2 and which can transfer a sleeve to the sleeve transfer devices 20, 21 which are also sleeve receiving tables. As is well known, the coil skid 3 is a temporary storage for a steel strip coil wound by the winder 1 and sent to the next step. In the case of a rewinding machine, the coil skid 3 is prepared and temporarily prepared for rewinding. This is a temporary depository for steel strip coils to be placed.

Since the apparatus of the present invention is constructed as described above, the sleeve replacement work conventionally performed manually or via an overhead crane or the like can be performed without the need for a large-scale foundation work under the reel, and the existing equipment of the conventional process line can be used. Can be automated simply by remodeling it, resulting in excellent effects such as reduction of work load, release from unsafe work, and improvement of productivity by shortening replacement time.

Hereinafter, the specific structure of the sleeve transfer arms incorporated in the sleeve transfer devices 20 and 21 and the coil saddle 6 will be described with reference to embodiments.

[0016]

FIG. 2 is a plan view showing the coupling between the sleeve delivery device and the coil car, and FIG. 3 is a sectional view taken along the line DD in FIG. 2 and 3, 22 is a centering device, 23 and 24 are sleeve transfer arms, 30 is a sleeve saddle, 31, and 42 are shafts, 32 and 43 are bearings, 33, 37, and 40 are cylinders, and 34 is a notch. , 35, 39 are guides, 36 is stoppers, 38
Is a centering block; 50 is a groove; The same members as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.

First, regarding the sleeve delivery devices 20 and 21,
Since these are mutually opposing and have the same configuration, the structure will be described as a representative. The sleeve saddle 30 has a shaft 31 and a bearing 32 at one end facing the traveling road, and a cylinder 33 at the other end.
And can be tilted around the shaft 31. Further, the sleeve saddle 30 has two notches 34 at one end facing the traveling road side.Below these two notches 34, the sleeve saddle 30 is guided by a guide 35 and urged by a cylinder 37 so that the sleeve saddle 30 is A stopper 36 that can appear and disappear is provided on the upper surface.

The sleeve saddle 30 further includes a centering device 22. The centering device 22 is provided in two sets facing each other in the longitudinal direction of the sleeve.Each set has a centering block 38, a guide 39, and a cylinder 40, and the centering block 38 is guided by the guide 39 by the cylinder 40 so that the centering block 38 can move forward and backward. Is configured. Thus, when the sleeve is placed on the sleeve saddle 30, the centering of the sleeve can be performed by pressing the sleeve with the other centering block 38 with reference to one centering block 38, so that the sleeve saddle 30 and the coil saddle 6 Position transfer of the sleeve is possible between them.

Next, the structure of the sleeve transfer arms 23 and 24 incorporated in the coil saddle 6 will be described. As shown in FIGS. 2 and 3, the coil saddle 6, which can be moved up and down by the cylinder 44 and the main body frame (not shown), is provided with two sets (two in each set) of sleeve transfer arms 23 and 24, which are opposite to each other. These sleeve transfer arms 23, 24
Has a shaft 42 and a bearing 43 at one end, and a cylinder 44 at the other end.
, And can be tilted around the shaft 42. A groove 50 is provided in the coil saddle 6, and the sleeve transfer arms 23 and 24 are connected to the coil saddle 41 except during the transfer operation.
It is sunk from the top and stored. With this configuration, the sleeve on the coil saddle 6 is transferred to the sleeve saddle 30a by the operation of the arm 23 and to the sleeve saddle 30b by the operation of the arm 24 in FIGS.

In this embodiment, the left from the coil car 2
The sleeve transfer arms 23 and 24 are separately provided on the coil saddle 6 as members for transferring the sleeves to the right sleeve saddles 30a and 30b, respectively, but the coil saddle 6 itself is divided and the same as the sleeve transfer arms 23 and 24 is provided. Operation may be performed. Next, a method of using the device of the present invention will be described.

First, the sleeve A mounted on the winder 1 shown in FIG.
Is moved to the front of the sleeve transfer devices 20 and 21, that is, the sleeve exchange position, and stopped. Sleeve saddle 30b
Has a sleeve B to be mounted next (see FIG. 3). Next, the cylinder 44 is operated to tilt the sleeve transfer arm 23 around the axis 42. The sleeve A is lifted by the sleeve transfer arm 23, and when the inclination reaches a certain critical value (the rolling friction angle of the sleeve A), the sleeve A rolls to the left in FIG.
Stop at V section of a.

Next, the cylinder 37a is operated and the stopper 36
After projecting a from the upper surface of the sleeve saddle 30a, the cylinder 44 is operated to return the sleeve transfer arm 23 to the original position. At the same time, the cylinder 40 is operated to advance the centering block 38 to center the sleeve A in preparation for the next transfer (see FIG. 2). Next, the cylinder 33b of the sleeve transfer device 20 is operated to tilt the sleeve saddle 30b on which the sleeve B is placed around the axis 31b. When the inclination reaches a certain critical value (the rolling friction angle of the sleeve B), the sleeve B rolls leftward in FIG. 3 and moves toward the coil saddle 6, and stops at the V portion of the coil saddle 6.

Next, the cylinder 33b is operated to return the sleeve saddle 30b to the original position. Finally, the coil car 2 is moved toward the winder 1 and the coil saddle 6 is raised to insert the sleeve B into the winder 1. This completes a series of sleeve replacement operations. In this embodiment, a method of using the present invention when applied to a winder has been described. However, when the present invention is applied to a rewinder, the device can be used in a similar manner. Although the case where the sleeve is made of rubber has been described, it goes without saying that the present invention can be applied to a sleeve made of synthetic resin, paper, iron, or the like.

[0024]

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 around a winding machine to which a sleeve exchanging device of the present invention is applied.

FIG. 2 is a plan view showing the connection between the sleeve delivery device and the coil car.

FIG. 3 is a sectional view taken along the line DD in FIG. 2;

FIG. 4 is a plan view showing a conventional sleeve replacement state.

FIG. 5 is a sectional view taken along the line CC in FIG. 4;

FIG. 6 is a cross-sectional view showing an example of a conventional sleeve changing device having 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, 33, 37, 40, 44 Cylinder 6 Coil saddle 7 Running path 10 Sleeve car 20, 21 Sleeve transfer device 22 Centering device 23, 24 Sleeve transfer arm 30 Sleeve saddle 31, 42 Shaft 32, 43 Bearing 34 Notch 35, 39 Guide 36 Stopper 38 Centering block 50 Groove A, B Sleeve a, b Members that are mutually opposite on both sides of the running path One and the other

Claims (1)

[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. On the other hand, a set of sleeves is provided on both sides of the running path of the coil car to be inserted and withdrawn and does not interfere with the operation of the coil car. A sleeve transfer arm capable of transferring a sleeve on the coil saddle to a sleeve transfer device.