KR200451964Y1 - Roller - Google Patents

Abstract

The present invention relates to a roller for solving problems such as scratches caused by the weight of the guide roller used in the stretching and processing process in the LCD film manufacturing process, to reduce the weight of the large-sized roller and stainless steel pipe rollers due to corrosion protection In order to simplify the internal structure of the roller.

In order to realize this, the present invention, a plurality of pipes, reinforcement connecting means consisting of a reinforcement wheel and a reinforcement pipe welded therein so that the connection and reinforcement of the pipes, and attached to both ends of the roller formed by connecting the pipes A roller comprising a shaft plate and a roller shaft installed by welding to the shaft plate for transmitting power to the roller, wherein the reinforcing connecting means for connecting the pipes is sewn into the pipe and formed into a hollow tube. It is done.

Roller, LCD film, roller shaft, shaft, reinforcement wheel,

Description

Roller {ROLLER}

The present invention relates to a roller for solving problems such as scratches caused by the weight of the guide roller used in the stretching and processing process in the LCD film manufacturing process, more specifically, a large size formed by connecting a plurality of pipes A roller for lightening the weight of the roller by simplifying the reinforcing connecting means forming the internal structure of the roller.

BACKGROUND ART In general, liquid crystal displays (LCDs) are widely used in desk electronic calculators, electronic clocks, personal computer word processors, instruments of automobiles and machinery. Such a liquid crystal display device is usually provided with a polarizing plate for visualizing the change in orientation of the liquid crystal, and this polarizing plate has a very large influence on the display characteristics of the liquid crystal display device.

As said polarizing plate, what laminated | stacked protective films, such as triacetylcellulose, on both surfaces of polarizing films, such as polyvinyl alcohol (PVA) type film which adsorbed and oriented dichroic substances, such as iodine and an organic dye, is generally used. . In particular, there is a demand for a polarizing film capable of providing a liquid crystal display device having good color reproducibility and excellent display characteristics.

Said polarizing film conveys a hydrophilic polymer film with a guide roll, immerses it in a swelling bath, swells the polymer film, and then dyes by dipping in a dye bath containing a dichroic substance, followed by stretching in a crosslinking bath. Is manufactured.

As shown in Figs. 1, 2 and 3, the film is a stretching step (S10) for extending the hard film, a dyeing step (S20) for adding a dye, a water squeezing step (S30), and a cleaning (S40). It is produced through a drying step (S50) to remove foreign substances and water, a coating step (S60) of combining several films, and a cutting step (S70) to cut to fit the size of a TV or monitor.

The roller used for manufacture of an LCD film as mentioned above is attached to the film manufacturing apparatus as shown in FIG.

An LCD film is manufactured using the film manufacturing apparatus (refer FIG. 2) with the said roller. When the pressure means 6 presses the pressure roller 4 toward the fixed roller 2 in the state where the polarizing film F is bitten between the fixed roller 2 and the pressure roller 4 in the film manufacturing apparatus, The film (F) is conveyed while being pulled by the traction force on the tip side in the state of being bitten between the rollers (2) (4) to produce the LCD film.

A roller and a roller manufacturing method mounted to the film manufacturing apparatus as described above are known in patent application No. 2008-9554 filed by the present applicant, as shown in FIG.

Looking at the roller schematically, a plurality of pipes 12 connected through a plurality of reinforcement wheels 14, a reinforcement pipe 16 passing through the center of the reinforcement wheel 14, and the pipe 12 Is formed of a shaft portion 23 consisting of a shaft plate 18 and a roller shaft 20 mounted on both sides of the.

In addition, the method of manufacturing the roller is roughly described, a process of processing a pipe of a predetermined length, a process of inserting and welding a reinforcement wheel 14 on both sides of the pipe 12, and reinforcement through the reinforcement wheels 14. Inserting and welding the pipe 16, inserting and welding the pipe 12 to each of the reinforcement wheels 14, and placing the shaft plate 18 and the roller shaft 20 at both ends of the pipe 12. It includes the process of welding, the post-processing process of processing the surface of the produced roller, and the process of plating and rubber-coating the produced roller.

The roller manufactured through the above process, as shown in Figure 2, is used as the fixed roller 4 and the pressure roller (2), depending on the width of the film (F) of about 3 ~ 4m long length (L) Is formed.

The rollers are very heavy because the pipes 12 are long connected using the reinforcement wheels 14. In particular, the manufacture of the roller using the reinforcement wheel 14 and the reinforcement pipe 16, the weight of the roller increases as the weight of the reinforcement wheel 14 and the reinforcement pipe 16 is added to increase the overall weight Becomes

The roller having an increased weight has a problem in that the rotation speed cannot be increased in the film manufacturing apparatus. This is because a load is applied to a bearing (not shown) supporting the weight of the roller and damaged. As described above, the roller of which the rotational speed is limited will lower the yield of the film.

In addition, the bearing for supporting the roller, because of the heavy weight of the roller wear is bad and should be replaced every three to six months. In the case of replacing the bearing, there is a problem that the operation is difficult, as well as the cost of maintenance and repair of the roller is increased due to frequent replacement of the bearing.

The present invention is proposed to solve the above problems of the prior art, the object of the present invention is to lighten the weight of the roller by selecting a thin pipe thickness of the roller.

Another object of the present invention is to connect pipes using hollow reinforcing connectors to simplify the internal structure of the rollers.

The roller of the present invention for realizing the above technical problem, a plurality of pipes, reinforcement connecting means installed therein so that the connection and reinforcement of the pipes, and attached to both ends of the roller formed by connecting the pipes A roller comprising a shaft plate and a roller shaft installed by welding to the shaft plate for transmitting power to the roller, wherein the reinforcing connecting means for connecting the pipes is sewn into the pipe and formed into a hollow tube. do.

According to the roller according to the present invention, there is an effect that the weight of the roller can be reduced by using only the hollow tube when connecting a plurality of pipes.

In addition, as the weight of the roller becomes lighter, the rotational speed can be increased, thereby increasing the yield of the film.

As the weight of the roller becomes lighter, the replacement cycle of the bearing can be extended, thereby reducing the cost of maintenance and repair.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention will be described in more detail. (The same components as in the prior art use the same symbols)

The roller according to the present invention, as shown in Figure 4, is formed of a plurality of pipes 12 provided with a predetermined length, and the shaft portion 23 is attached to both ends of the pipe (12).

The pipe 12 is connected to the other pipe by reinforcing connecting means which is shrinked in the inner diameter. After being connected by the reinforcing connecting means, the contact gap formed on the outer circumferential surface of the pipe 12 is welded and finished. And the length of the pipe 12 can be formed in various ways depending on the design of the roller.

The pipe 12, aluminum, carbon fiber reinforced plastics (CFRP: Carbon Fiber Reinforced Plastics), steel (STEEL), stainless steel may be used, but carbon fiber reinforced resin is expensive, so aluminum, steel, stainless steel It is preferable to select and use according to a use.

The shaft portion 23 includes a shaft plate 18 formed to have an inner diameter and a predetermined thickness of the pipe 12, and a roller shaft 20 formed at the center of the shaft plate 18. That is, the shaft plate 18 and the roller shaft 20 is formed of one body for reducing the assembly labor for the pipe (12).

The roller shaft 20 is attached to both ends of the pipe 12 by the shaft plate 18. The roller shaft 20 of the shaft portion 23 is provided with a bearing installation end 20-3 for mounting on the roller device and a power connection end 20-4 for mounting a pulley or gear.

Next, the features of the roller according to the present invention will be described in detail with reference to FIGS. 4 to 5. The roller is formed by a hollow connection pipe 26, which is a reinforcing connection means, and pipes 12 connected by welding.

The connection of the pipes 12 is made through a shrink fit process of the hollow connection pipe 26 to the pipe 12.

The hollow connecting pipe 26 used for the connection of the pipes 12 described above is a hollow tube of short length and constant thickness. The hollow connection pipe 26 is lighter than the reinforcement wheel 14 used when connecting the pipes 12 in the related art because the center is bored.

In addition, the roller of the present invention, since the conventional reinforcement wheel 14 is not used, the reinforcement pipe 16 installed through it is not used. Accordingly, the roller of the present invention can be manufactured very lightly than the conventional roller weight.

And after finishing the post-processing process of processing the surface of a roller, a rubber coating process can be selected as needed. When the rubber coating process is selected, as illustrated in FIG. 5, the rubber material R may be coated on the outer circumferential surface of the pipe 12 with a predetermined thickness.

In addition, as shown in FIG. 6, the hollow connecting pipe 26 may be provided with a protrusion 28 on an outer circumferential surface thereof. The projections 28 allow the shrinkage depth to the pipe 12 to be uniform.

Hereinafter, the operation of the present invention made as described above.

First, three roller manufacturing pipes 12 cut to a predetermined diameter and length are prepared. In any one of the prepared pipes 12, the reinforcing connecting pipes 26 are connected by shrinking from both sides.

Then, the other two unused pipes 12 connect to each of the reinforcing connection pipes 26 which are shrinked to the pipes 12 through shrinkage.

The order of connection of the pipes 12 and the reinforcement connecting pipe 26 may be changed.

When the pipes 12 are long connected by the reinforcing connection pipe 26, the shaft plate 18 is connected to the inner diameter of both side pipes 12 to connect the shaft portions 23.

When the pipe 12 is connected to the shaft 23, the shape of the roller is completed. In the completed roller, a gap is formed around the contact portion of the pipes 12 and the shaft plate 18, which is removed through a welding process that is attached by welding.

After the welding of the pipes 12 and the shaft 23 is completed, the roller manufacturing is completed. After that, the roller is subjected to a post-treatment process for processing the surface. When the post-treatment process for the roller is completed, the roller is produced through a final process selected from the plating process or the rubber coating process.

The plating process and the rubber coating process, the surface of the roller is smoother so that the cutting operation of the LCD film is made precisely.

The rubber coating step is a step that is selected as necessary in the step of finishing the surface of the roller in the post-treatment step. After the rubber coating process, as shown in Figure 5, the rubber material (R) is coated with a predetermined thickness on the outer peripheral surface of the roller.

As described above, the roller manufactured lighter than the conventional roller can increase the rotational speed because it does not impose a burden on the bearing of the film production apparatus. Increasing the rotational speed of the roller can increase the amount of production of the film.

In addition, since the roller is light, the replacement cycle of the bearing can be extended, thereby reducing the cost of maintenance and repair of the facility.

The present invention is to manufacture a roller by connecting the hollow reinforcing connector to the pipes by shrinking, so that it is possible to provide a roller with increased durability and light weight, as well as manufacturing an LCD film, and the general rolling process and large-sized It can be widely used in rollers of equipment.

1 is a block diagram showing a conventional LCD film manufacturing process.

2 is a view showing a conventional roller device for film production apparatus.

3 is a view showing an embodiment of a conventional roller.

Figure 4 is an exploded perspective view showing a roller according to an embodiment of the present invention.

FIG. 5 is a side sectional view of the roller shown in FIG. 4. FIG.

FIG. 6 is a perspective view showing another embodiment of the hollow reinforcement connector shown in FIG. 4. FIG.

<Description of the symbols for the main parts of the drawings>

12: Pipe

18: shaft

20: roller shaft

23: shaft

28: protrusion

Claims (5)

delete A plurality of pipes 12, reinforcement connecting means installed therein so as to connect and reinforce the pipes 12, attached to both ends of the roller formed by connecting the pipes 12 and transmits power to the rollers In the roller comprising a shaft portion 23 formed of two shaft plate 18 and the roller shaft 20 to be welded after assembling, Reinforcing connecting means for connecting the pipes 12, the shrinkage to the pipe 12 is formed as a hollow tube, the projection 28 is formed in the middle of the outer peripheral surface so that the shrinkage depth to the pipe 12 is uniform Characterized by roller. The method of claim 2, The shaft portion (23), characterized in that the shaft plate (18) and the roller shaft (20) is formed in one body in order to reduce the assembly labor for the pipe (12). The method of claim 2, The roller is a roller, characterized in that the both ends are formed in a hollow hollow inside and blocked by the shaft portion (23). delete

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