KR101563920B1 - Apparatus and method for manufacturing honeycomb structure - Google Patents

Abstract

The present invention relates to a honeycomb structure manufacturing method and an apparatus for manufacturing various honeycomb structured bodies which are known in the prior art, and a honeycomb structural body having the same performance but light weight, The present invention relates to an apparatus and a method for manufacturing a honeycomb structured body, in which a stretching device and a stretching step capable of stretching a calculated honeycomb structure and enlarging the size thereof as desired are added.

Description

[0001] Apparatus and method for manufacturing honeycomb structure [

The present invention relates to a honeycomb structure manufacturing apparatus, a honeycomb structure manufacturing apparatus, a honeycomb structure manufacturing apparatus, a honeycomb structure manufacturing apparatus, and a honeycomb structure manufacturing apparatus, And a manufacturing method thereof.

The honeycomb or honeycomb structure is embedded in various panels or as a structure itself, and a plate of a predetermined thickness (butterfly) is joined or integrally formed with each other to form honeycomb cells (see FIG. 3).

There are several prior arts regarding such a honeycomb structure or a manufacturing method thereof.

Korean Patent Publication No. 1992-0014594 (cross-sectional member of a honeycomb structure made of a thermoplastic resin, an extrusion head for a cross-sectional member, and a manufacturing method thereof) of a thermoplastic resin is produced by discharging a thermoplastic resin from an extrusion head to form a honeycomb shape As a technique for forming the hexagonal honeycomb structured body according to the first embodiment of the present invention, strictly speaking, a partition wall structure).

Korean Patent Laid-Open Publication No. 1998-701343 (method and apparatus for forming a honeycomb core for use in a honeycomb type panel) is characterized in that it is made of a deformable material made of a cellulosic material such as paper or cardboard, To provide a continuous or otherwise extended glue strip which is applied by a glue ejection nozzle and wherein the two glue strips are mounted one on top of the other, Are arranged in a staggered manner such that the plates are mutually compressed so that they can be adhered locally to each other. This technique relates to a technique of forming a substantially trapezoidal shaped partition wall between two plates and a plate.

Korean Patent No. 10-538474 (a method and an apparatus for producing a honeycomb structure made of a heat-soluble material), which is a current right-disappearing state, comprises a honeycomb structure formed by extruding a thermally soluble material to form a honeycomb structure, Discloses an automatic apparatus for forming a structure (sheet material), adhering a skin to the surface thereof, and cutting it to a required size. This technique adopts a method of attaching a plate material as necessary after the honeycomb structure is formed if the hexagonal honeycomb structure is manufactured in the form of a plate conveyed by a roller.

It is an object of the present invention to provide a honeycomb structured body which is improved in the conventionally known various honeycomb structural body manufacturing methods or apparatuses so that the final calculated honeycomb structural body has the same performance but the weight is reduced to reduce the cost, And an object of the present invention is to provide an apparatus and a method for manufacturing a honeycomb structured body by which a structure can be stretched and its size can be enlarged as desired.

According to a first aspect of the present invention, there is provided an apparatus for manufacturing a honeycomb structured body, comprising: an extruder capable of distributing a heat-soluble material under a pressure over a wide width by a coat hanger die; And a molding and cooling chamber for cooling and curing the molded honeycomb structural body are used as the honeycomb structural body.

According to one embodiment of the apparatus for manufacturing foam structure according to the present invention, a foaming device is connected between the extruder and the outlet molding assembly so that when the raw material is extruded in the extruder, the raw material is foamed and extruded into the outlet molding assembly . At this time, it is preferable that the foaming apparatus is a high-pressure film extrusion foaming apparatus.

According to another embodiment of the apparatus for manufacturing a foam structure according to the present invention, the honeycomb structure formed from the forming and cooling chambers may further include a stretching device for stretching the honeycomb structure while heating the honeycomb structure to widen the plane of each honeycomb cell. The stretching device may be included in a conventional honeycomb structure manufacturing apparatus together with the foaming apparatus, or may be included separately in the honeycomb structuring apparatus separately from the foaming apparatus.

The elongating device is provided with two rotation belts between the entrance portion into which the honeycomb structural body before stretching enters and the exit portion through which the elongated honeycomb structural body exits from the elongating device so that the interval between the two rotation belts gradually increases toward the exit portion And a plurality of vertical rods are arranged in a line in the longitudinal direction of the belt on the surface of each of the rotary belts and are sequentially moved infinitely in the advancing direction of the belt (that is, toward the exit portion) by the rotation of the rotary belts. Further, at any upper position adjacent to the entrance of the elongate section, there is a heating section which is already cooled in the tank and reheats the cured honeycomb structure.

As a result, the honeycomb structures are inserted into the entrance portion of the stretching device, and honeycomb cells located along both sides of the honeycomb structure are caught by a plurality of vertical rods provided on the surfaces of the both side rotary belts, The cells constituting the honeycomb structural body are elongated (for example, transversely) while progressing toward the exit portion.

Further, between the exit portion of the elongating device and the rotary belt, at least two exit rollers may be further included which rotate in a direction pushing the extended honeycomb structure out of the elongate portion. Thereby, the degree of stretching (for example, in the longitudinal direction) of the honeycomb structural body can be adjusted by the difference between the entry speed of the honeycomb structured body entering the entrance portion of the elongating device and the exit speed of the honeycomb structural body due to the rotation of the exit roller .

Meanwhile, according to another embodiment of the apparatus for manufacturing a foam structure according to the present invention, the drawing apparatus extends the honeycomb structure present in the tank from the molding and cooling chamber during curing in the tank. The honeycomb structured body is planarly elongated to the degree necessary for the cooling time by taking advantage of the fact that the honeycomb structure in the tank is cooled and cured for about 10 seconds or so.

This stretching apparatus includes a pair of right and left first stretching rollers for picking up the left side and right side of the honeycomb structure from the forming and cooling chambers at the upper and lower sides, and a pair of upper and lower pairs. The first circumferential direction of the first elongating roller extends at an angle that allows the honeycomb structure to be elongated larger than the width of the honeycomb structural body emerging from the forming and cooling chambers.

In addition, following the first elongating roller, a second elongating roller may be additionally provided on the left and right in addition to the first elongating roller, thereby further extending the honeycomb structure during curing. The rotational circumferential direction of the second elongating roller may be the same as or different from the rotational circumferential direction of the first roller (may be larger or smaller).

According to a second aspect of the present invention, there is provided a method for manufacturing a honeycomb structured body, comprising: an extruding step of distributing a heat-soluble material under a pressure over a wide width by a die; A method for manufacturing a honeycomb structured body comprising the steps of forming a honeycomb structured body and a step of cooling and curing the formed honeycomb structural body, wherein a foaming step is carried out between the extrusion step and the molding step, And is introduced into the molding step.

The foaming step is preferably a high pressure film extrusion foaming method.

The method for manufacturing a honeycomb structured body according to the present invention may further include a step of stretching the honeycomb structure formed in the cooling and curing steps while applying heat to the honeycomb structure to widen the planar area of each honeycomb cell, The method may be applied together with the foaming step, or separately from the foaming step.

In the stretching step, two rotating belts are arranged between the entrance area where the honeycomb structure before stretching enters and the exit area where the stretched honeycomb structure exits, so that the distance between the two rotating belts gradually increases toward the exit area Installed; A plurality of vertical rods are arranged in a line in the longitudinal direction of the belt on the surface of each rotary belt and are configured to sequentially move in an infinite direction in the advancing direction of the belt by the rotation of each rotary belt. By using this apparatus, the honeycomb structures are inserted into the entry region, and honeycomb cells located along both sides of the honeycomb structure are caught by a plurality of vertical rods provided on the surfaces of the both-side rotary belts, The cells constituting the honeycomb structure are elongated (for example, in the transverse direction) while the vertical bars progress toward the exit region.

In addition, the method for manufacturing a honeycomb structured body of the present invention is characterized in that, using an apparatus including at least two ejection rollers between the exit area and the rotation belt to rotate in a direction pushing out the extended honeycomb structure out of the exit area, The degree of stretching (for example, in the longitudinal direction) of the honeycomb structural body can be adjusted by the difference between the entry speed of the entered honeycomb structural body and the exit speed of the honeycomb structural body due to the rotation of the exit roller.

Meanwhile, according to another embodiment of the method for manufacturing a foam structure according to the present invention, there is included a step of stretching the honeycomb structure out of the forming and cooling chamber and currently being cured in the tank, in a tank. This step is for planar stretching the honeycomb structural body to such an extent necessary for the cooling time by taking advantage of the time taken for the honeycomb structure to cool and harden in the tank in about 10 seconds.

For this elongation step, a pair of left and right first elongating rollers for picking up the left and right sides of the honeycomb structure from the forming and cooling chambers at the upper and lower sides are used. The first circumferential direction of the first elongating roller extends at an angle that allows the honeycomb structure to be elongated larger than the width of the honeycomb structural body emerging from the forming and cooling chambers.

In addition, following the first elongating roller, a second elongating roller may be additionally provided on the left and right in addition to the first elongating roller, thereby further extending the honeycomb structure during curing. At this time, the rotational circumferential direction of the second elongating roller may be the same as or different from the rotational circumferential direction of the first roller (which may be larger or smaller).

The above-described features and other features of the present invention will be apparent from the following detailed description and accompanying drawings.

According to the present invention, it is possible to reduce the manufacturing cost of the finally calculated honeycomb structure and to enlarge the calculated size of the honeycomb structure inline.

1 is a conceptual diagram of an apparatus for manufacturing a honeycomb structure according to the prior art.
2 is a structural view of the honeycomb structural body forming block 15 used in the apparatus of FIG.
3 is a schematic view of the honeycomb structural body calculated by the apparatus of FIG.
4 is a conceptual diagram of an apparatus for manufacturing a honeycomb structured body according to the first embodiment of the present invention.
5 is a conceptual diagram of an apparatus for manufacturing a honeycomb structured body according to a second embodiment of the present invention.
6 is a plan view of the internal configuration of the extension 200 of FIG.
7 is a side view of the internal configuration of the extension 200 of FIG.
FIG. 8 is a view for explaining the operation of the internal configuration of the extending portion 200 of FIG.
9 is a plan view of a stretching unit 200 'according to another embodiment.
10 is a plan view of Fig.

FIG. 1 shows an example of a conventional honeycomb structural body manufacturing apparatus, which is disclosed in Korean Patent No. 10-538474, which was introduced in the explanation section of the prior art.

Fig. 1 shows an apparatus comprising an extruder 2 which allows a thermally soluble material under pressure to be distributed over a broad width by a coat-hanger die 3. Fig.

On the downstream side of the die 3, a molding and cooling chamber 4 for molding and cooling the honeycomb structural body is disposed, and this chamber is pressed. The molding and cooling chamber 4 is immersed in a tank 5 containing water 6. [ Behind the molding and cooling chamber 4, there is disposed a pulling device 7 composed of two rollers 8 driven in mutually opposite directions and acting on two surfaces of the honeycomb structure 9, respectively. A joining device 10 for continuously joining two cover sheets 12 supplied from two reels 13 to form a skin on two sides of the honeycomb structure 9 is provided on the downstream side of the tank 5, Respectively. On the downstream side of this joining device 10, there is a cutting device 14 for cutting the honeycomb structural body in the direction crossing the extrusion direction to make the plate material.

The die 3 comprises a block 15 shown in detail in Fig. In the central part of the block 15 in which the heat-soluble material is dispensed in a viscous state, vertical parallel slots 16 are arranged and each slot 16 is formed between two adjacent conical parts 17 And the apex of the conical part is directed toward the upstream side. These conical parts 17 are made of a heat insulating material with good mechanical properties such as polyimide and are covered with a heat transfer material, for example based on gold, silver or copper, in the area immediately preceding the slot. Each conical part 17 may have heating means. Since the slots 16 are parallel, these slots can form a parallel sheet 31. [

In FIG. 1, the honeycomb structure is molded through two exit molding assemblies 18. The outlet molding assembly 18 is configured to allow the overlapping of the conical part 17 in any vertical position of the outlet molding assembly 18 for the die and to provide a seal to the conical parts 17 of the die And has complementary conical portions 19. Each exit molding assembly 18 is adjustably mounted vertically in the die 3 so that the thickness of the structure can be adjusted in the direction of the cell of the honeycomb structure being formed.

1 and 2, a honeycomb structure as shown in Fig. 3 can be produced. Such a honeycomb structure can be used for various purposes such as a building panel, an inner filling material for plywood, and a heat insulating material.

Figure 4 shows the foaming portion 100 positioned between the extruder 2 and the outlet molding assembly 18 of Figure 1. Here, when the raw material is extruded in the extruder 2, the raw material is foamed and extruded into the die 3.

In the present invention, basically, a honeycomb structured body made of a plate material is to be produced, so that a high pressure film extrusion foaming apparatus is applied to the foaming portion 100. It is also possible to use a CO ₂ type foaming apparatus using a material such as methane or propane. By thus foaming and extruding the raw material, the honeycomb structure having the same performance as the conventional honeycomb structural body but having a lighter weight can be produced, thereby reducing the cost.

In the embodiment of FIG. 5, the honeycomb structure 9 cooled by the tank 5 in FIG. 1 is heated again before the honeycomb structure 9 enters the joining apparatus 10, And a stretching unit 200 for stretching the stretching direction to extend the planarity. This stretching part 200 may be installed together with the blowing machine 100 of FIG. 4 or separately. The elongated portion 200 makes it possible to manufacture various planar honeycomb structures.

6 to 8 are plan and side schematic views for specifically describing a specific embodiment of the stretching part 200. As shown in Fig.

6, the extending portion 200 is provided with an entrance portion into which a honeycomb structure before being drawn (that is, a honeycomb structure formed in the tank 5 (refer to reference numeral 9 in FIG. 7 and FIG. 8)) and a drawn honeycomb structure 7 " and " 9 " in Fig. 8).

The two rotating belts 201 and 201 'are disposed so as to be spaced apart from each other between the entrance portion and the exit portion of the elongating portion 200 so as to be gradually widened toward the exit portion. A plurality of vertical bars 204 and 204 'are arranged in a line on the surface of each rotary belt. Referring to FIG. 7, it can be seen how the vertical rods 204 and 204 'are installed on the corresponding rotary belts 201 and 201'. Each of the vertical rods 204 and 204 'is infinitely shifted sequentially in the advancing direction of the rotary belt (that is, toward the exit portion) when the rotary belts 201 and 201' are rotated.

There is a heating portion 207 for reheating the honeycomb structure 9 cured in the tank 5 of Fig. 5 at an arbitrary upper position adjacent to the entering portion of the stretching portion 200. Fig.

Between the exit portion of the elongating portion 200 and the rotary belts 201 and 201 'there are release rollers 205 and 206 which rotate in a direction pushing the elongated honeycomb structure 9' out of the elongate portion 200. 7, it can be seen that the reject rollers 205 and 206 contact the upper and lower portions of the drawn honeycomb structure 9 'and rotate in different directions.

Reference is made to Fig. 8 which illustrates the operation of the stretching part 200. Fig. The honeycomb structure 9 formed by curing in the tank 5 is heated by the heating portion 207 while entering the entrance portion of the elongating portion 200 and is vertically Honeycomb cells located along both sides of the honeycomb structure are caught in the rods 204 and 204 '. Since the rotating belts 201 and 201 ', which are gradually spaced from both sides toward the exit portion, continue to rotate, the cells on both sides of the honeycomb structure 9 are sequentially moved to the vertical rods 204 and 204' And proceeds to the exit side.

The cells on both sides of the honeycomb structure 9 are pulled in the lateral direction in a state in which the vertical rods 204 and 204 'are sequentially heated to the exit portion by the rotation of the two rotary belts 201 and 201' The honeycomb structure 9 is stretched in the transverse direction.

On the other hand, in the longitudinal stretching, the difference between the entry speed of the honeycomb structured body 9 entering the entrance of the elongating portion 200 and the exit speed of the rollers 205 and 206 located in the exit portion of the elongating portion 200 . That is, when the exit speed of the honeycomb structured body 9 'extended from the entry speed of the honeycomb structured body 9 by the rotation of the ejection rollers 205 and 206 becomes faster, the degree of drawing in the longitudinal direction of the honeycomb structured body 9 becomes Lt; / RTI >

On the other hand, in the embodiment shown in Fig. 9 (side view) and Fig. 10 (plan view), the honeycomb structure 9 is cooled and hardened in the tank 5 in Fig. And a stretching portion 200 'according to the second embodiment for performing plane stretching of the honeycomb structured body 2 to such an extent as is necessary during this cooling time. This stretching part 200 'may be provided together with the blowing machine 100 of FIG. 4 or separately. Various elongated planar honeycomb structures can be manufactured by the extension portion 200 '.

9, a pair of stretching rollers 208-1, 209-1 (208'-1, 209'-1) for stretching the honeycomb structured body 9 from the left and right is disposed behind the pulling device 7, The left side and the right side of the base 9 are picked up from the upper and lower sides and stretched. The circumferential direction in which the pair of left and right elongating rollers 208-1 and 209-1 (208'-1 and 209'-1) rotate is larger than the width W1 of the honeycomb structure 9 which has entered the entrance portion The honeycomb structured body 9 is further increased in width by the rotation of the pair of left and right stretching rollers 208-1 and 209-1 (208'-1 and 209'-1).

Following the pair of left and right stretching rollers 208-1, 209-1, 208'-1 and 209'-1, the second stretching rollers 208-2, 209-2, 208'- 2 and 209'-2 are vertically rotated to further extend the honeycomb structure 9 in the left and right sides. The rotation circumferential direction of the second elongating roller may be the same as the rotational circumferential direction of the first elongating rollers 208-1, 209-1 (208'-1, 209'-1) It can be pulled out at a narrow angle. This depends on the extent to which the honeycomb structure is to be elongated. The description of the second, third, fourth, and so on stretching rollers is omitted here.

The stretching portion 200 'of the present embodiment can be achieved both in the transverse direction and in the longitudinal direction of the honeycomb structured body by the stretching roller described above. Further, since the honeycomb structured body 9 is still stretched while being softened in the water for cooling contained in the tank 5, a separate heating unit is not required.

The foregoing is illustrative and descriptive of the invention and is not intended to limit the scope of the invention. The scope of the technical scope of the present invention is defined by the following claims. Therefore, those skilled in the art can derive various embodiments through various structures, shapes, and combinations within the scope of the claims of the present invention, and these are all included in the claims of the present invention.

The extruder 2, the coat hanger die 3, the molding and cooling chamber 4, the tank 5, the water 6, the pulling device 7, the roller 8, the honeycomb structure 9, The structure 9 ', the joining device 10, the cover sheet 12, the reel 13, the cutting device 14, the material delivery block 15, the slot 16, the conical part 17, The vertical bars 204 and 204 ', the ejection rollers 205 and 206, and the upper and lower rollers 201 and 201' Heating section 207, stretching rollers 208, 208 ', 209 and 209'

Claims (12)

A material extruder (2) capable of distributing a heat-soluble material under a pressure by a coat hanger die (3) in a wide width, and a honeycomb structure including a plurality of honeycomb cells from a material delivered from the material extruder And a molding and cooling chamber (4) installed so as to be submerged in a tank (5) containing water (6) for cooling and hardening the molded honeycomb structure, characterized in that the honeycomb structural body ,
(18) so that when the material is extruded in the extruder (2), the material is foamed so that the foamed material is extruded into the exit molding assembly (18) Means 100,
And stretching means (200) for stretching the honeycomb structure cured in the tank (5) in which the shaping and cooling chamber (4) is immersed to widen the plane of each honeycomb cell,
The stretching means
A rotating belt is provided on both lateral sides opposite to each other with respect to the traveling direction of the honeycomb structural body between the entrance portion into which the honeycomb structural body before stretching enters and the exit portion through which the drawn honeycomb structural body exits, The belt is rotated so as to move in the longitudinal direction toward the exit portion, and the respective rotating belts are opposed to each other so that the distance between the rotating belts becomes gradually wider toward the exit portion as viewed from the plane,
On the surface of each of the rotary belts, a plurality of vertical rods are arranged in a line in the longitudinal direction of the belt, that is, in the longitudinal direction. The vertical rods are arranged in the advancing direction of the belt by the rotation of the respective rotary belts, Respectively, so as to move infinitely,
Honeycomb structures located on both sides of the honeycomb structure are engaged with a plurality of vertical rods provided on the surfaces of the rotating belts opposed to each other so that the honeycomb structures enter the entrance portion and gradually widen toward the exit portion, Wherein the honeycomb cells on both sides of the honeycomb structural body are elongated while the vertical rods are sequentially moved toward the exit portion by rotation of the honeycomb structural body. The honeycomb structure manufacturing apparatus according to claim 1, wherein the foaming means is a high-pressure film extrusion foaming apparatus. delete delete delete 3. The honeycomb structured body according to claim 1, further comprising at least two ejection rollers between the ejection portion of the elongating means and the rotation belt, the ejection rollers being rotated in a direction pushing the elongated honeycomb structure out of the elongation portion, Wherein the degree of stretching of the honeycomb structural body is controlled by the difference between the entry speed of the honeycomb structured body and the exit speed of the honeycomb structured body due to the rotation of the exit roller. delete delete delete A method of manufacturing a honeycomb structured body, comprising the steps of: extruding a thermally soluble material under a pressure over a wide area by a die; molding a honeycomb structure including a plurality of honeycomb cells from the material dispensed in the material extruding step; And cooling and curing the honeycomb structured body,
A foaming step performed between the material extrusion step and the honeycomb structured step, foaming the material at the time of extruding the material and injecting the material into the honeycomb structured step;
And a stretching step of stretching the honeycomb structure formed in the cooling and curing step to widen the planar area of each honeycomb cell,
Wherein the honeycomb structured body is characterized in that honeycomb cells are stretched by hanging vertical rods on the rotating belt according to claim 1 in the honeycomb cells located on opposite sides of the honeycomb structural body in the transverse direction, Wherein the honeycomb structured body is a honeycomb structured body.

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