JPH09267135A - Device and method for edge treatment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform the edge treatment without deteriorating a quality, and to facilitate the change of an elastic body by constructing a masher roll so that an elastic body with a tapered shape at the edge of the masker roll is attachable and detachable, and forming the maximum width of the tapered part larger than a roll diameter. SOLUTION: When a steel strip 3 is transferred this way, a pressure is applied to the edge of the steel strip 3 by the elastic body 7 constructing the masher roll 30, and the edge treatment is performed, which is a treatment smoothing by crushing burrs having occurred by trimming. At that time, a rotational movement is performed by a support roll 25 to feed the steel strip 3 after the edge treatment. The elastic body 7 is manufactured so that the maximum width of the taper, which is the maximum width of the tapered part of the elastic body 7, is larger than the roll diameter. Consequently, even when pushing the elastic body 7 on the edge part of the steel strip 3, the edge treatment can be performed without flawing a boundary line part between the horizontal part of the masher roll and the tapered part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for performing a so-called edge treatment, and more particularly to a masher roll suitable for crushing a side of a trimmed steel strip and performing edge treatment.

[0002]

2. Description of the Related Art A conventional edge processing apparatus will be described with reference to FIGS. FIG. 4 shows the structure of a conventional edge processing apparatus.

The trimmer 1 provided with a blade for trimming the steel strip 3 is rotated by a rotary drive mechanism (not shown) to cut off both edges of the steel strip 3. The ear scraps 4, which are unnecessary steel strips generated by the edge cutting, are collected in a container (not shown) or the like.

Since the trimmed steel strip 3 has burrs and the like on both edge portions thereof, it is crushed to smooth the edge portion of the steel strip 3 and trimming processing is carried out to convey it to the next step.

Various methods have been proposed as a mode of trimming treatment, but generally, a method in which a masher roll 2 is provided and a steel strip edge portion is crushed by the masher roll 2 to smooth burrs is generally used. Target.

In FIG. 4, one set of masher rolls 2 is provided to crush burrs with two masher rolls 2. However, one masher roll 2 is used to crush burrs. Is also good.

Then, such a trimming process is sequentially performed in accordance with the progress of the steel strip 3 shown by the arrow in the figure.
By the way, as the masher roll 2, one made of iron or rubber has been proposed.

When the trimming process is performed by the iron masher roll 2, the locus of the roll edge is transferred to the steel strip 3 and the roll edge scratches the steel strip. Therefore, as shown in FIG. The configuration has a tapered shape.

[0009]

However, even if the iron masher roll 2 has a tapered shape and is trimmed, the boundary between the horizontal portion and the taper portion of the masher roll 2 (see FIG. 5). Part A) had a problem that the steel strip 3 was flawed.

Further, when the trimming process is performed by the rubber masher roll 2, the abrasion of the rubber is remarkable and the durability of the masher roll 2 is problematic. Conventionally, in such a case, a method of easily replacing the rolls provided in the trimming device has not been proposed, and a lot of man-hours are required for the replacement work.

Therefore, an object of the present invention is to solve the problem of complicated roll replacement by trimming with an elastic body that can be easily exchanged, and to attach it to a steel strip using the elastic body. It is to provide a masher roll that suppresses flaws.

[0012]

In order to solve the above problems and achieve the objects of the present invention, the following means are proposed. That is, according to the first aspect of the present invention, in an edge processing device that performs edge processing by crushing a blade return portion on a side of a trimmed steel strip, a mash roll that presses against the blade return portion to perform edge processing. The edge of the smash machine roll is configured so that an elastic body having a taper shape can be attached and detached, and the maximum width of the taper portion is formed larger than the roll diameter.

Further, an edge treatment method which is another embodiment of the present invention is also conceivable. This method is a method of performing edge treatment by crushing a side blade return portion of a trimmed steel strip as in the invention according to claim 2, and an elastic body having a taper shape can be attached to and detached from the end of itself. And an edge treatment method in which the maximum width of the tapered portion is formed to be larger than the roll diameter and a masher roll is prepared, and the masher roll is pressed against the blade return portion to perform edge treatment. .

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. An embodiment of the present invention will be described with reference to FIGS. 1 to 3.

FIG. 1 shows a part of the structure of an edge processing apparatus using a masher roll 30 according to the present invention. Note that, in FIG. 1, for ease of understanding and the like, the configuration of the edge processing device on the right side of the steel strip 3 is omitted.

The support roll 25 is a roll for feeding the steel strip 3, and its rotation shaft is rotatably supported by the support 20. The masher roll 30 is rotatably supported by the support 20 via the rotary shaft 15 in order to perform the edge treatment of the steel strip 3.

It is preferable that a mechanism for adjusting the height of the rotary shaft 15 is provided so that the pressure with which the masher roll 30 is pressed against the steel strip 3 can be adjusted. Further, a device configuration may be provided in which a pair of masher rolls 30 are provided so as to face each other so as to sandwich the edge portion of the steel strip 3.

Now, the operation of the edge treatment of the steel strip 3 performed by this apparatus is as follows. Now, it is assumed that the steel strip 3 is wound up by a winding device (not shown) such that the steel strip 3 advances from the other side to the front side in a direction perpendicular to the drawing.

When the steel strip 3 is conveyed to the present apparatus, the masher roll 30 which rotates as the steel strip 3 advances advances the edge treatment of the steel strip 3. Specifically, the elastic body 7 that constitutes the masher roll 30 operates so as to perform an edge process that is a process of applying pressure to the edge of the steel strip 3 to crush and smooth burrs generated by trimming.

At this time, the support roll 25 performs a rotating operation so as to send out the steel strip 3 which has been subjected to the edge treatment. Such edge treatment is sequentially performed according to the progress of the steel strip 3.

Now, the structure of the masher roll 30 used in the edge processing apparatus shown in FIG. 1 will be described in detail with reference to FIG. FIG. 2 shows a cross-sectional view of the masher roll 30.

The iron part 6 is a member constituting the masher roll 30, and is usually made of an iron material. The elastic body 7 is a member having a tapered portion, and is made of an elastic material such as rubber or urethane material.

A female screw is provided at the right end of the iron part 6, and the elastic body 7 can be screwed to the iron part 6 with a fixing screw 8. Therefore, by operating the fixing screw 8, the elastic body 7 can be attached to and detached from the iron part 6, and when the elastic body 7 is worn, it can be easily replaced.

Further, the fixing screw 8 is provided with the rotating shaft 15 described above.
A groove b for rotatably supporting is provided. On the other hand, the left part of the iron part 6 also has a tapered shape, and a groove a for rotatably supporting the rotary shaft 15 is provided on the left end surface of the iron part 6.

Here, the elastic body 7 is manufactured so that the maximum taper width, which is the maximum width of the tapered portion of the elastic body 7 shown in the figure, is larger than the roll diameter shown in the figure.
Specifically, the maximum taper width is 2 (m
m) It is preferable to manufacture the elastic body so as to be large.

FIG. 3 shows an external view of the masher roll 30 having the sectional structure shown in FIG. It can be seen that the elastic body 7 having a tapered shape is fixed to the iron portion 6 by the fixing screw 8.

Such a masher roll 30 has the following features. First, the elastic body, which is a member that is easily worn by the edge process and lacks durability, can be easily replaced.

Thus, if a plurality of elastic bodies 7 are prepared in advance, the elastic bodies can be easily replaced by only operating the fixing screw 8, and the replacement time is extremely short. Second,
The maximum taper width of the elastic body 7 is set to be larger than the roll diameter.

As a result, even if the elastic body 7 is pressed against the edge portion of the steel strip 3, the edge processing can be performed without the flaw due to the boundary portion between the horizontal portion and the taper portion of the masher roll as in the conventional case. Become.

Therefore, the quality of the steel strip 3 after the edge treatment is deteriorated by performing the edge treatment of the steel strip 3 with the edge treatment apparatus using the masher roll having such characteristics as shown in FIG. There is no invitation.

In the above embodiment, the edge treatment of the steel strip 3 after the trimming treatment has been described.
The present invention can also be used as a means for removing burrs generated after a pressing process, for example.

Further, in the apparatus configuration shown in FIG. 1, the masher roll 30 is rotatably supported by the support 20 so that the central axis of the masher roll 30 is parallel to the surface of the steel strip 3. The masher roll 30 may be rotatably supported by the support 20 such that the central axis of the roll 30 has a predetermined angle with the surface of the steel strip 3.

Further, by attaching a coating material to the elastic body 7 in advance and visually confirming the degree of peeling of the attached coating material so that the degree of wear of the elastic body 7 can be grasped, the elastic body 7 can be grasped. This is convenient because it is possible to immediately know the replacement time of.

As described above, according to the present invention, by performing the trimming process with the elastic body which can be easily exchanged, the problem of the complexity of the roll exchange can be solved and the elastic body can be used. It is possible to realize a masher roll that suppresses a flaw attached to a steel strip.

[0035]

As described above, according to the invention of claim 1 or 2, the end of the machine roll is
An elastic body having a tapered shape is detachably configured, and
Since the maximum width of the tapered portion is made larger than the roll diameter, it is easy to replace the elastic body that is the worn portion due to the trimming process, and it is possible to realize an apparatus and method that suppresses flaws attached to the steel strip by the elastic body. .

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment according to the present invention.

FIG. 2 is a cross-sectional view showing a configuration of a masher roll of this embodiment.

FIG. 3 is an external view of a masher roll of this embodiment.

FIG. 4 is a general configuration example of an edge processing device.

FIG. 5 is a sectional view showing a configuration of a conventional masher roll.

[Explanation of symbols]

 1 trimmer 2 masher roll 3 steel strip 4 ear waste 6 iron part 7 elastic body 8 fixing screw 15 rotating shaft 20 support 25 support roll 30 masher roll

Claims (2)

[Claims] 1. An edge processing apparatus for crushing a side edge of a trimmed steel strip to perform an edge treatment, comprising a massier roll pressed against the blade burr portion to perform an edge treatment. Is an edge treatment device in which an elastic body having a tapered shape is detachably attached to the end thereof, and the maximum width of the tapered portion is formed larger than the roll diameter. 2. A method of performing edge treatment by crushing a blade return portion on a side of a trimmed steel strip, wherein an elastic body having a taper shape is detachably attached to an end of itself, and An edge treatment method in which a masher roll having a maximum width larger than a roll diameter is prepared, and the masher roll is pressed against the blade return portion to perform edge treatment.