KR102253383B1 - Corrugator equipped with oscillating heat pipe and assembling method thereof - Google Patents

Abstract

Disclosed are a corrugator having an oscillating heat pipe and a method of manufacturing the same. The corrugator having an oscillating heat pipe according to the present invention includes a cylinder-shaped cylinder having a plurality of perforation holes formed by perforating at least one of a preheater, a corrugation roll, and a pressure roll in a concentric circle around a rotation axis; And a pair of cap members which are respectively bonded to both ends of the cylinder, and have a plurality of connection grooves concentrically formed in the contact portions of both ends of the cylinder. At this time, each of the connection grooves are located at the ends of the adjacent pair of punched holes to communicate the pair of punched holes, and the pair of cap members opposing connection grooves have a structure in which they are arranged to be staggered.

Description

TECHNICAL FIELD [0001] Corrugator equipped with oscillating heat pipe and assembling method thereof

The present invention relates to a corrugator. More specifically, it relates to a corrugator that provides temperature uniformity over the entire cylinder of the corrugator.

Various types of materials from steel to corrugated board are produced through roll-to-roll processing.

The roll-to-roll processing equipment is equipped with a number of cylindrical members, and the temperature uniformity of these members closely affects the quality of the final product. In addition, it affects the life of the equipment itself.

If the temperature uniformity is not guaranteed, a bending phenomenon in which the cylinder itself is bent to one side or a cylinder in which the center part is expanded occurs, and the deformation of the cylinder directly leads to a deterioration in product quality and an increase in the defect rate.

For example, in the case of corrugated cardboard as shown in FIG. 1, it is manufactured by bonding the corrugated paper and the liner through a corrugator, and when deformation occurs in the cylinder, the corrugation is not properly counted in the corrugated core at both edges, or both edges Along the way, the ribs and the liner are not properly attached and defects occur in which they are removed.

However, when the material is a polymer fabric other than paper, this problem occurs more severely.

For example, in the case of manufacturing an element for a heat exchanger having a corrugated shape using polymer fabric, if the surface temperature of the cylinder is not uniform, some sections may be excessively deformed or melted. In another section, the liner and corrugated paper are properly fused. There is a problem of not being able to do so or being thrown out.

That is, since it is impossible to implement a flow path having a precise and constant shape, there is a problem that the performance of the heat exchanger element is deteriorated and the defect rate is increased.

Accordingly, there is an urgent need to prepare an improvement measure to ensure the temperature uniformity of the roll-to-roll process equipment, especially the cylindrical member of the corrugator.

Document 1. Patent Publication No. 10-2017-0032351 "Advanced Air Pressure Control Method for Corrugator" Document 2. Patent Publication No. 10-2009-0040263 "Double facer in corrugated cardboard manufacturing apparatus and heating control method of heating plate of the double facer"

The present invention is to solve the problems of the prior art as described above, and it is an object of the present invention to provide a corrugator that secures surface temperature uniformity by implementing an oscillating heat pipe inside a cylinder.

In addition, by implementing an oscillating heat pipe in a simple way without inserting a separate heat pipe inside the cylinder, the purpose is to provide a corrugator manufacturing method that minimizes the cost increase factor compared to the existing corrugator equipment and simplifies the manufacturing process. have.

In order to achieve the above object, the corrugator having an oscillating heat pipe according to the present invention includes at least one preheater that heats a corrugated core or a liner fabric, a pair of corrugated rolls for producing a corrugated core by rotating in mesh with each other, and It has a pressure roll for compressing the liner.

At this time, at least one or more of the preheater, the roll roll, and the pressure roll,

A cylindrical cylinder having a plurality of perforation holes formed by perforating concentric circles around the rotation axis; And

And a pair of cap members which are respectively joined to both ends of the cylinder, and have a plurality of connection grooves concentrically formed in the contact portions of both ends of the cylinder.

At this time, each of the connecting grooves is located at the end of the pair of adjacent boring holes to communicate the pair of boring holes, and the connecting grooves facing each other of the pair of cap members are arranged to be staggered.

Meanwhile, the perforated holes are arranged on concentric circles at predetermined intervals,

The length of the connection groove is equal to or greater than the distance between the perforated holes, but is less than twice the distance between the perforated holes,

The number of connection grooves is equal to half of the number of perforated holes, or 1 is less than half of the number of perforated holes.

Meanwhile, the perforation hole and the connection groove are communicated to each other to form a single flow path, but the working fluid is filled therein to form an oscillating heat pipe.

On the other hand, in order to achieve the above object, a method for manufacturing a corrugator having an oscillating heat pipe according to the present invention includes: drilling a plurality of perforated holes concentrically around a rotation axis of a cylinder;

Forming a vibrating tubular flow path by joining a pair of cap members having a plurality of concentric connection grooves inwardly concentrically formed to both ends of the cylinder;

Degassing the formed vibrating tubular flow path to create a vacuum state, and then filling a working fluid; And

It includes; after manufacturing at least one of a preheater, a roll roll, and a pressure roll through the above process, assembling to complete the corrugator.

According to the present invention, there is an effect of maintaining a high level of quality of products manufactured through roll-to-roll processing equipment by uniformly maintaining the cylinder surface temperature of the corrugator.

In addition, it can contribute to improving the durability of the equipment itself by preventing the cylinder from being deformed.

In particular, not only the heat from the heat source inside the cylinder is uniformly diffused, but also heat transfer from the outside by contact is uniformly diffused, thereby enabling elaborate processing.

According to the present invention, when manufacturing a corrugated heat exchanger element using a polymer material, the size and shape of the flow channel can be uniformly maintained, thereby securing the performance of the heat exchange element and reducing the defect rate. have.

1 is a diagram showing the shape of a corrugated cardboard;
2 is a diagram showing the structure of a corrugator;
3 is a view showing the coupling relationship between the cylinder and the cap member according to the present invention,
4 is a view showing the shape of the cap member,
5 is a view showing a state in which a pair of adjacent perforation holes communicate through a connection groove;
6 is a view conceptually showing a vibrating custom tube flow path formed by a connection groove and a perforation hole,
7 is a view showing a modified example of the cylinder and the cap member according to the present invention,
8 is a flowchart illustrating a method of manufacturing a corrugator having an oscillating heat pipe according to the present invention in time series.

Hereinafter, the present invention will be described in detail with reference to a preferred embodiment of the present invention and the accompanying drawings, but it will be described on the premise that the same reference numerals refer to the same elements.

In the detailed description of the invention or in the claims, when any one component "includes" another component, it is not construed as being limited to only the component unless otherwise stated, and other components It is to be understood that it may further include.

Hereinafter, the corrugated fiberboard refers to a product manufactured by bonding a riser having a flat surface to a corrugated core made of a corrugated shape, and is not limited to a specific material. Preferably, in the present invention, it is assumed that it is made of a polymer fabric material.

The corrugator is a collective term for equipment that processes corrugated paper to form corrugated paper, and bonds it with a liner to produce corrugated board. The name or detailed structure is not limited, and it goes without saying that the present invention can be applied to equipment of a single facer as well as a double facer structure.

Hereinafter, a structure of a corrugator having an oscillating heat pipe according to the present invention will be described with reference to the accompanying drawings.

As shown in Fig. 2, the corrugator having an oscillating heat pipe according to the present invention comprises a first preheater 31 for preheating by unrolling the corrugated core, and a pair of top and bottom to make the corrugated core into a corrugated body. It has a flute roll (10).

Further, it has a second preheater 32 for unwinding and preheating the liner, and a pressure roll 20 for compressing the golgi produced through the gol roll 10 and the preheated liner.

Since a general corrugator makes corrugated cardboard using paper fabric, instead of preheating, at the position of the first preheater 31, it is pre-treated so that it is moist by spraying steam, and a separate glue (not shown) roll is used. After applying the adhesive solution to the contact surface between the liner and the Golgi by using, the pressure roll 20 undergoes a process of compressing the liner and the Golgi to be bonded.

In the present invention, since it is premised on manufacturing corrugated cardboard using a polymer fabric, the first preheater 31 and the second preheater 32 preheat each liner and corrugated core to a predetermined temperature in advance unlike a conventional corrugator. Is provided, and since the liner and the corrugated paper are heat-sealed, the glue roll may be excluded.

At this time, the area in direct contact with the liner or the ridge is a pair of upper and lower gol rolls (11, 12), the first pre-heater (31), the second pre-heater (32) and the pressure roll (20), as described above, the length It should have a uniform temperature throughout the entire section along the direction.

To this end, the top and bottom pair of roll rolls 11 and 12, the first preheater 31, the second preheater 32, and the pressure roll 20 are preferably cylindrical, respectively, as shown in FIG. It includes a shaped cylinder 110 and a pair of cap members 120 provided on both sides of the cylinder.

The cylinder 110 has a cylindrical shape that extends long in one direction, and in the case of the valley rolls 11 and 12, valleys may be formed along the outer circumferential surface. On the other hand, the first preheater 31, the second preheater 32, and the pressure roll 20 have a smooth outer circumferential surface.

The axis of rotation of the cylinder 110 coincides with an imaginary line connecting the center points of both ends of the cylinder 110 in the longitudinal direction. The cylinder 110 is formed by perforating a plurality of through-holes 111 concentrically around a rotation axis.

Each through hole 111 is preferably parallel to the rotation axis of the cylinder 110, and is formed in a straight line along the longitudinal direction.

Each through hole 111 has an inner wall blocked and both ends are opened only in the longitudinal direction, so that the working fluid flowing into one side of the through hole 111 completely flows out to the other end of the through hole 111.

Preferably, each of the through holes 111 have the same diameter and are arranged at regular intervals.

Meanwhile, as shown in FIG. 4, the cap member 120 is provided with a plurality of connection grooves 121 for communicating two adjacent through holes 111, and are welded to both ends of the cylinder 110.

The connection groove 121 preferably has a length corresponding to the separation distance between a pair of adjacent through-holes 111, and the shape of both ends of the connection groove 121 in the longitudinal direction corresponds to the cross-sectional shape of the through-hole 111 It is desirable to have a corresponding shape.

The length of the connection groove 121 may be equal to or longer than the separation distance between adjacent through holes 111, but should be shorter than twice the separation distance between the through holes 111 so that the three through holes 111 do not communicate. .

A plurality of connection grooves 121 are arranged concentrically at regular intervals on one side of the cap member 120 about the rotation axis of the cylinder 110. At this time, each connection groove 121 is arranged to correspond to the position of the through hole 111.

When the cap member 120 is bonded to either end of the cylinder 110 by welding or the like, each of the connection grooves 121 is formed of a pair of through holes 111, respectively, as shown in FIG. 5. Communicate.

A pair of through-holes 111 are connected to both ends of the connection groove 121 in the longitudinal direction, and between each connection groove 121 there is a gap 122 between the connection grooves that are not depressed. The spacing part 122 between the connection grooves is in close contact with the outer walls of both ends of the cylinder 110 so that the working fluid does not leak to the outside.

On the other hand, when joining the cap member 120 to both ends of the cylinder 110, the connecting grooves 121 facing each other around the cylinder 110 are arranged to be staggered.

That is, if any one through hole 111 communicates with the other through hole 111 adjacent in the clockwise direction through the connection groove 121 at one end of the cylinder 110, the connection groove at the other end of the cylinder 110 It communicates with another through hole 111 adjacent to the counterclockwise direction through the 121.

In this way, as shown in FIG. 6, each of the connection grooves 121 and the through holes 111 forms a single flow path.

The number of connection grooves 121 is 1 less than half of the number of through holes 111 or half of the number of through holes 111.

When the number of connection grooves 121 is half of the number of through holes 111, it becomes a circulation type in which both ends of the flow path are connected. As in the example of FIG. 6(a), the ends of all the through holes 111 are communicated through the connection groove 121 so that the working fluid continues to circulate.

That is, when the number of through holes 111 is an even number, a circulation type oscillating heat pipe is formed.

On the other hand, when the number of through holes 111 is an odd number, the number of connection grooves 121 is 1 less than half of the number of through holes 111.

In this case, as in the example of FIG. 6(b), one pair of adjacent through-holes 111 among the through-holes 111 is closed without being interlocked with one end. Accordingly, a straight oscillating heat pipe is formed.

Meanwhile, in the examples of FIGS. 3 and 4, the cap member 120 has a circular cross section, and the rotation shaft 124 protrudes at both ends, but this is only an example and the through hole 111 If the connection groove 121 for communicating) is provided, there is no limit to its shape.

Meanwhile, preferably, a pipe 123 that is exposed to the outside and connects the inside and outside of the cap member 120 is further provided on the cap member 120 on either side of both sides.

After the cap member 120 is welded to the cylinder 110 to form a flow path, the inside of the flow path is degassed through the pipe 123, and then the working fluid may be filled therein.

On the other hand, by designing the upper and lower pair of roll rolls 11 and 12, the first preheater 31, the second preheater 32, and the pressure roll 20 in the above structure, the working fluid inside the flow path is vaporized. It operates as an oscillating heating pipe in which the vapor phase section and the liquid phase section alternately appear, and it can maintain a uniform temperature range over the entire section and the entire area.

In particular, maintaining a uniform surface temperature when heating the gollols 11 and 12, the first preheater 31, the second preheater 32 and the pressure roll 20 through a separate heating means (not shown). In addition to being possible, heat applied through external contact is also uniformly transferred over the entire area through the oscillating heating pipe, thereby maintaining a uniform temperature.

7 shows a modified example of the cylinder and the cap member according to the present invention.

In order to form a flow path simply by welding the outer circumferential surface in a state in which the cylinder 110 and the cap member 120 are fastened, both side end surfaces of the cylinder 110 and the inner surface of the cap member 120 can more easily come into close contact with each other. It is desirable to have a shape that is present.

To this end, as illustrated in FIG. 7, the concave-convex portion 125 may be formed by protruding the inner surface of the cap member 120. On the other hand, it is possible to form the concave-convex corresponding portions 113 of the shape depressed inward at both side ends of the cylinder 110.

7 is only a simple example, and the direction of the irregularities may be reversed, and it is possible to limit the direction or position in a polygonal shape rather than a cylindrical shape.

Hereinafter, a method of manufacturing a corrugator having an oscillating heat pipe according to the present invention will be described with reference to FIG. 8.

First, a plurality of perforation holes 111 are perforated in a concentric circle around the axis of rotation of the cylinder 110 (S1).

The cylinder is preferably made of metal, and the perforated holes 111 are parallel to the rotation axis of the cylinder 110 and are spaced apart from each other at regular intervals.

Instead of inserting a separate pipe into the perforated hole 111, after fastening the cap member 120 to both ends of the cylinder 110 in order to form one flow path by communicating a plurality of perforated holes 111 It is joined by a method such as welding.

At this time, on the inner side of the cap member 120, as described above, a connection groove 121 for communicating a pair of perforation holes 111 is concentrically formed by being recessed in a number of ways, and a pair of cap members ( By bonding 120) to both ends of the cylinder 110, a vibrating tubular flow path is formed (S2).

The pair of cap members 120 are bonded to both ends of the cylinder 110, but the connecting grooves 121 facing each other are arranged so as to be staggered, so that all the perforated holes 111 are connected by a single flow path.

Thereafter, the formed vibrating tubular flow path is degassed to create a vacuum state, and then the working fluid is filled (S3).

Through this process, when a pair of roll rolls 11 and 12, the first preheater 31, the second preheater 32, and the pressure roll 20 are manufactured, they are assembled to complete the corrugator (S4). .

The technical idea of the present invention was examined through the above several embodiments.

It is apparent that those of ordinary skill in the art to which the present invention pertains can variously modify or change the above-described embodiments from the description of the present invention. In addition, even if not explicitly shown or described, a person of ordinary skill in the technical field to which the present invention pertains can make various modifications including the technical idea according to the present invention from the description of the present invention. Is self-evident, which still belongs to the scope of the present invention. The above embodiments described with reference to the accompanying drawings have been described for the purpose of describing the present invention, and the scope of the present invention is not limited to these embodiments.

The present invention can be applied to roll-to-roll processing equipment including corrugators.

L: Liner
G: Golsimji
31: 1st preheater
32: second preheater
11: 1st goal roll
12: 2nd goal roll
20: pressure roll
110: cylinder
111: drilling hole
112: border
113: uneven response section
120: cap member
121: connection groove
122: spacing between connection grooves
123: piping
124: rotating shaft
125: irregularities

Claims (5)

In a corrugator having one or more preheaters for heating the corrugated core or liner fabric, a pair of corrugated rolls for producing corrugated cores by rotating in engagement with each other, and a pressurizing roll for compressing the liner on the generated corrugated cores,

Each of the preheater, gol roll and pressure roll,
A cylinder 110 of a cylindrical shape having a plurality of perforated holes 111 formed by perforating concentrically around a rotation axis; And
A pair of cap members 120 which are joined to both ends of the cylinder 110, respectively, and a plurality of connection grooves 121 recessed inwardly at the contact portions of both ends of the cylinder 110 are concentrically formed; Provided,

Each of the connection grooves 121 is located at the end of the adjacent pair of perforated holes 111 to communicate the pair of perforated holes 111,
Based on the specific perforated hole 111, one end communicates with the adjacent perforated hole 111 in the clockwise direction through the connecting groove 121, and the other end is connected to the specific perforated hole 111 as a reference. 121 is communicated to the adjacent perforation hole 111 in a counterclockwise direction, and the perforation hole 111 and the connection groove 121 form a single flow path,
After the cylinder 110 and the cap member 120 are welded while the single flow path is formed, the inside of the flow path is degassed through the pipe 123 formed on the cap member 120 to provide a working fluid inside the flow path. Is filled,
The filled working fluid provides temperature uniformity over the entire surface of the cylinder by forming a single flow path through the perforated holes 111 separated by concentric circles,

A plurality of the connection grooves 121 are arranged at regular intervals in a concentric circle on one side of the cap member 120,
The length of the connection groove 121 is equal to or greater than the distance between the perforated holes 111, but is less than twice the distance between the perforated holes 111,
The shape of both ends in the longitudinal direction of the connection groove 121 has a shape corresponding to the cross-sectional shape of the perforated hole 111,

The number of connection grooves 121 is configured to be 1 less than half or half of the number of perforated holes 111,
Oscillating, characterized in that when the number of perforated holes 111 is an even number, a circular oscillating heat pipe is formed, and when the number of perforated holes 111 is odd, a straight oscillating heat pipe is formed. Corrugator with heat pipe.
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