KR20230009668A - Industrial Wave Rolls - Google Patents

Abstract

The present invention relates to an industrial wave roll used for manufacturing facilities for film, paper, textile, etc., which is able to form a wave on the outer side of the roll, improve the straight-driving property of film, suppress the formation of wrinkles, prevent scratches from being formed on the surface of a film, reduce frictional force with the film, make it easy to clean the surface, and improve durability. As such, according to the present invention, in an industrial wave roll with shafts on both side units of a core roll, the industrial wave roll comprises: a base layer sheathing the outer side of the core roll with rubber with a high hardness; a groove formed on the outer side of the base layer with a certain pattern; an inner material filling the inside of the groove with rubber with a low hardness; and a sheath layer sheathing the outer side of the base layer and the inner material.

Description

Industrial Wave Rolls {Industrial Wave Rolls}

The present invention is a technology related to industrial rolls used in manufacturing facilities such as film, paper, and fibers. More specifically, since a wave is formed on the outside of the roll, the running straightness of the film is improved while suppressing wrinkles. It is a technology related to an industrial wave roll that not only prevents scratches on the surface of the film, but also lowers the frictional force with the film, and is easy to clean the surface while improving durability.

In general, in manufacturing facilities such as film, paper, and fiber, a number of rolls are used to transport articles such as films, strips, and sheets according to the manufacturing process, and these rolls are made of various materials depending on the purpose and characteristics of use. It is made of, for example, fiber-reinforced plastic (FRP) or carbon fiber-reinforced plastic (CFRP) or steel (steel) and rubber (rubber).

Recently, in the process of winding a finished film in an industrial film manufacturing facility, the finished film is first slitted with a cutting machine, passed through a contact roll made of a rubber material, and then wound around a winding roll adjacent thereto.

These industrial rubber rolls carry out the function of transporting the film fabric from the film manufacturing facility according to the manufacturing process or smoothing the film during the winding process of the finished film, and frictional force is generated in contact with the film fabric, while static electricity is generated on the rubber roll itself. will occur

On the other hand, rolls made of existing synthetic resins (FRP, CFRP) or steel and stainless pipes have a relatively high coefficient of friction, resulting in a lot of scratches on the surface of the rolls and severe static electricity, which causes various environmental effects on the surface of the rolls. There is a problem in that durability of the roll is reduced while the lifetime of the roll is shortened by the attachment of foreign substances.

Therefore, as a prior art for removing static electricity caused by friction between a film fabric and a roll and preventing foreign substances from adhering to the surface of the roll, Korean Patent Publication No. 10-2018-0024148 (static reduction type industrial roll) is proposed. there is a bar

In this prior art, grooves are formed in various shapes on the surface of the roll, and a conductive part is formed on the surface of the roll by filling the groove with a conductive material, thereby removing strong static electricity generated due to friction between the film fabric and the roll. It prevents various environmental foreign substances from being attached to the surface of the film to increase the durability of the roll, while providing the effect of preventing various troubles in the process of conveying and winding the film fabric.

In addition, as a prior art for improving the running straightness and stability of conventional film fabrics and preventing wrinkles of film fabrics, Korean Patent Publication No. 10-2018-0024150 (a roll for straightness and wrinkle improvement using frictional force) has been proposed.

In this prior art, grooves are formed in various shapes on the cylindrical body of the roll, and a release portion is formed on the surface of the roll by filling the groove with a material having a different material and frictional force, so that the friction force acts differently on the release portion on the surface of the roll. As a result, the driving straightness and stability of the film fabric are increased, and the film fabric is smoothed out to provide an effect of preventing wrinkles.

However, in the "industrial roll" presented in the prior art, the air layer introduced from the film conveying equipment to the roll side increases as the film fabric progresses faster and the roll rotates faster, as well as flows between the film fabric and the contact surface of the roll. Significantly lowers the frictional force between the rolls and, as a result, there is a problem in that slip occurs between the roll and the film fabric.

As a result, the running straightness and stability of the film are deteriorated, the work efficiency is lowered in the subsequent process, and various problems are caused, and the air layer is not smoothly discharged and dispersed, and the effect is not as expected.

Republic of Korea Patent Registration No. 10-1335287. Republic of Korea Patent Registration No. 10-1533736. Republic of Korea Patent Registration No. 10-1817732. Republic of Korea Patent Publication No. 10-2018-0024148. Republic of Korea Patent Publication No. 10-2018-0024150.

The present invention is a technology devised to improve the problems of the "industrial roll" presented in the prior art, and a base layer is coated with high hardness rubber on the outside of a core roll, and a groove is formed on the outside of the base layer. And, while the interior material is filled with low-hardness rubber in the groove, a coating layer of conductive rubber is formed on the outside of the base layer and the interior material, so that a wave is formed on the outside of the roll due to the difference in hardness between the base layer and the interior material. It aims to provide a wave roll.

In addition, in the embodiment of the present invention, the wave is formed on the outside of the industrial roll, thereby improving the running straightness of the film, suppressing wrinkles, preventing scratches on the surface of the film, lowering the frictional force with the film, and cleaning the surface. It is an object to provide an industrial wave roll that is easy and has improved durability.

The present invention, in order to realize the desired object as described above,

An industrial roll having shafts on both sides of a core roll, comprising: a base layer coated with high-hardness rubber on the outside of the core roll; Grooves formed in a predetermined pattern on the outside of the base layer; an interior material filled with low-hardness rubber inside the groove; and a coating layer coated and molded on the outside of the base layer and the interior material.

In addition, as an embodiment of the present invention, the base layer is coated and molded to a predetermined diameter on the outside of the core roll, and high-hardness synthetic resin rubber having a hardness of Hs85 to Hs100 is applied.

In addition, as an embodiment of the present invention, the interior material is filled in the concave groove of the groove, and a low-hardness synthetic resin rubber having a hardness of Hs30 to Hs45 is applied.

In addition, as an embodiment of the present invention, the coating layer is configured by coating the base layer and the exterior of the interior material with conductive rubber.

In the embodiment of the present invention, a wave is formed on the outside of the roll due to the difference in hardness between the base layer and the interior material filled in the groove, so that when the film is wound on the roll, air is discharged between the film and the wave to suppress wrinkles. And, there is an effect of improving the running straightness of the film due to the directionality of the wave.

In addition, in the embodiment of the present invention, since the wave is formed on the outside of the roll, the frictional force with the film is lowered, the surface of the film is prevented from being scratched, and the surface of the roll is easily cleaned, and a coating layer is formed of conductive rubber on the outside Accordingly, there is an effect of further increasing the durability of the roll.

1 is a perspective view showing a conventional industrial roll.
2 to 4 are front views showing conventional industrial rolls.
Figure 5 is a side cross-sectional view showing a winding state of the film on an existing industrial roll.
Figure 6 is a front cross-sectional view showing the winding state of the film on the existing industrial roll.
Figure 7 is a front cross-sectional view showing a groove of a conventional industrial roll.
8 to 10 are front sectional views of main parts showing an embodiment of the present invention.
Figure 11 is a front cross-sectional view of the main part showing the wave state of the roll in the present invention.
Fig. 12 is a front cross-sectional view of main parts showing the wave state of the coating layer in the present invention.
Fig. 13 is a front cross-sectional view of main parts showing the winding state of the film on the coating layer in the present invention.

Existing industrial rolls are manufactured to a predetermined length and diameter according to the specifications of the roll 10 in the manufacturing facility of the film fabric, as shown in Figs. provided, where the shaft 11 is rotatably installed as a bearing in the manufacturing facility.

In the above, the shaft 11 is formed on both sides of the core roll 10a constituting the roll 10, and the core roll 10a is made of synthetic resin (FRP, CFRP) or It is made of a material such as steel, and the base layer 20 is formed by coating a rubber layer with a predetermined diameter on the outside.

On the other hand, grooves 30 are formed in a certain pattern in order to increase the straightness of the film and to suppress wrinkles on the base layer 20 coated on the outside of the core roll 10a. It is formed in a spiral shape symmetrically in both directions in the middle part of the, or formed into a diamond shape or a cutout groove of a predetermined length.

As shown in FIG. 5 in the drawing, in the conventional industrial roll, since the groove 30 is spirally processed on the outside of the base layer 20, when the film P is wound around the roll 10, the film P and Air is discharged between the grooves 30 to suppress wrinkles, and the directivity of the grooves 30 improves the running straightness of the film.

However, as shown in FIGS. 6 to 7 in the drawing, the conventional industrial rolls, when the roll 10 rotates at high speed, the high-speed wind passes through the groove 30 of a large width and depth, and the film P moves through the groove 30 Since the phenomenon of pulling inwards occurs, there is a problem in that scratches occur on the surface of the film P by the edges A of both sides of the groove 30.

On the other hand, it is difficult to process the edge (A) of the groove 30 in the existing industrial roll into a round, and various environmental foreign substances are collected inside the groove 30, and these environmental foreign substances are transferred to the film or affect the characteristics of the film. There are issues that affect it.

Therefore, the embodiment of the present invention improves the running straightness of the film by constructing a wave on the outside of the industrial roll, suppresses the occurrence of wrinkles, prevents surface scratches of the film, and lowers the frictional force with the film, In addition, it is intended to provide an industrial wave roll that is easy to clean the surface and has improved durability.

In this embodiment of the present invention, the base layer is coated with high-hardness rubber on the outside of the core roll, grooves are formed in a predetermined pattern on the outside of the base layer, and the interior material is filled with low-hardness rubber in the groove, while the base layer By forming a coating layer of conductive rubber on the outside of the interior and the interior material, a wave can be formed on the outside of the roll due to a difference in hardness between the base layer and the interior material.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The main configuration according to the embodiment of the present invention is an industrial roll having a shaft 11 on both sides of the core roll 10a, and a base layer coated with high-hardness rubber on the outside of the core roll 10a. (20); Grooves 30 formed in a predetermined pattern on the outside of the base layer 20; an interior material 40 filled with low-hardness rubber inside the groove 30; and a coating layer 50 coated and molded on the outside of the base layer 20 and the interior material 40.

In the main configuration of the embodiment, the core roll 10a has a shaft 11 formed on both sides, respectively, as shown in FIGS. 8 to 10 in the drawing, and manufactured to a predetermined length and diameter according to the specifications of the roll 10, In addition, it is preferable to be composed of synthetic resin (FRP, CFRP) due to the characteristics of the roll 10.

Here, the core roll 10a is made of synthetic resin (FRP, CFRP) or steel and stainless, and the shaft 11 is made of steel, and the core roll 10a ) can be manufactured by attaching it to both sides of the

In addition, in the main configuration of the embodiment, the base layer 20 is coated and molded on the outside of the core roll 10a, and the base layer 20, as shown in FIGS. 8 to 10 in the drawings, of the core roll 10a It is coated and molded to a predetermined diameter on the outside, and is made of high-hardness synthetic resin rubber.

In the above, the base layer 20 is formed by coating and molding high-hardness synthetic resin rubber on the outside of the core roll 10a, and high-hardness synthetic resin rubber having a hardness of Hs85 to Hs100 may be applied, where a synthetic resin rubber of Hs90 to Hs95 is used. is most preferable

On the other hand, after molding the base layer 20 with high-hardness synthetic resin rubber on the outside of the core roll 10a, a lapping process is performed to grind the surface of the base layer 20, and then primary vulcanization (加黃) process is carried out.

In addition, in the main configuration of the embodiment, the groove 30 is formed in a predetermined pattern on the outside of the base layer 20, and the groove 30 is formed in the base layer 20 as shown in FIGS. 2 to 4 in the drawings. It may be formed in a spiral shape symmetrically in both directions at the outer middle portion, or may be formed in a diamond shape or a cutout groove of a predetermined length.

In the above, the groove 30 is formed as a concave groove on the outside of the base layer 20, as shown in FIG. 8 in the drawing, and its shape is not particularly limited, but it may have a certain pattern and direction like a conventional industrial roll. Do.

Meanwhile, in the above, the groove 30 is polished on the surface of the base layer 20 that has undergone the vulcanization process, and is processed in a predetermined pattern on the outside of the base layer 20, and then a cleaning process is performed.

In addition, in the main configuration of the embodiment, the interior material 40 is a function of filling the inside of the groove 30, and the interior material 40 is filled in the concave groove of the groove 30, as shown in FIG. 9 in the drawing, and has low hardness. It is made of synthetic resin rubber.

In the above, the interior material 40 is configured by filling the inside of the groove 30 with low-hardness synthetic resin rubber, and low-hardness synthetic resin rubber having a hardness of Hs30 to Hs45 may be applied, where Hs35 to Hs40 synthetic resin rubber is most preferable. Do.

On the other hand, after filling the interior material 40 with low-hardness synthetic resin rubber inside the groove 30, a lapping process is performed to grind the surfaces of the base layer 20 and the interior material 40, and then the secondary vulcanization process and a polishing process and a washing process are performed.

In addition, in the main configuration of the embodiment, the coating layer 50 is a function of being coated and molded on the outside of the base layer 20 and the interior material 40, and the coating layer 50 is a base layer ( 20) and the interior material 40 are coated and molded to a predetermined diameter and made of conductive rubber, for example, DE-CR.

In the above, the coating layer 50 is configured by coating the conductive rubber (DE-CR) on the outside of the base layer 20 and the interior material 40, and a conductive rubber having a hardness of Hs50 to Hs80 may be applied, where Hs55 to A hardness of Hs65 is preferred.

In addition, after forming the coating layer 50 on the outside of the base layer 20 and the interior material 40, a lapping process is performed to grind the surface of the coating layer 50, and then a tertiary vulcanization process and a polishing process are performed. Subsequent processes are carried out to produce wave rolls.

In the embodiment of the present invention having such a configuration, since the rubber hardness of the base layer and the interior material filled in the groove is different, when the coating layer is formed on the outside of the base layer and the interior material and then the vulcanization process is performed, FIGS. 11 to 13 in the drawings As such, as the stress acting on the high-hardness base layer and the low-hardness interior material is greatly increased, a wave is naturally formed on the surface of the coating layer.

Therefore, in the embodiment of the present invention, waves are formed on the outside of the roll due to the difference in hardness between the base layer and the interior material, so that when the film is wound on the roll, air is discharged between the film and the wave to suppress wrinkles, and the wave The directivity of the film improves the running straightness.

In addition, in the embodiment of the present invention, since the wave is formed on the outside of the roll, the frictional force with the film is lowered, the surface of the film is prevented from being scratched, and the surface of the roll is easily cleaned, and a coating layer is formed of conductive rubber on the outside Accordingly, the durability of the roll is further increased.

In the above, the preferred embodiments of the present invention have been described with reference, and it is not limited to the above embodiments, and those skilled in the art through the above embodiments do not deviate from the gist of the present invention. It can be implemented with various changes in .

10: roll 10a: core roll
11: shaft 20: base layer
30: Groove 40: Interior material
50: coating layer A: corner
P: film

Claims (4)

In the industrial roll provided with the shaft 11 on both sides of the core roll 10a,
a base layer 20 coated with high-hardness rubber on the outside of the core roll 10a;
Grooves 30 formed in a predetermined pattern on the outside of the base layer 20;
an interior material 40 filled with low-hardness rubber inside the groove 30; and
An industrial wave roll, characterized in that it is configured to include; a coating layer 50 coated and molded on the outside of the base layer 20 and the interior material 40.
According to claim 1,
The base layer 20,
An industrial wave roll characterized by applying high-hardness synthetic resin rubber having a hardness of Hs85 to Hs100 and being coated and molded to a predetermined diameter on the outside of the core roll (10a).
According to claim 1,
The interior material 40 is
An industrial wave roll filled in the concave groove of the groove 30 and characterized by applying low hardness synthetic resin rubber having a hardness of Hs30 to Hs45.
According to claim 1,
The coating layer 50 is
An industrial wave roll characterized in that it is constituted by coating the outside of the base layer 20 and the interior material 40 with conductive rubber.

Images