KR101649595B1 - Method And Apparatus for Manufacturing Drain Board - Google Patents

Abstract

A manufacturing apparatus and a manufacturing method of a drain board are disclosed.
A drain board manufacturing apparatus for making a drain board using a plate material supplied with a predetermined thickness, the apparatus comprising: a protrusion protruding outwardly in order to form a protrusion on a surface of the plate material; A first shaping roller provided with a plurality of first through-holes and provided with a suction hole connected to the connection passage, An adsorption means for adsorbing the sheet material on the surface of the first shaping roller by discharging the inner air to the outside through the adsorption hole connected to the connection path; A second shaping roller which is rotatably installed at a position adjacent to the first shaping roller and has a plurality of protrusion complementary holes complementary to the protrusions to press the lower end of the first shaping roller protrusion toward the surface to remove the protrusions between the protrusions, The drain board manufacturing apparatus includes:

Description

Technical Field [0001] The present invention relates to a method and apparatus for manufacturing a drain board,

The present embodiment relates to a manufacturing apparatus and a manufacturing method of a drain board.

The contents described in this section merely provide background information on the present embodiment and do not constitute the prior art.

Generally, the outer wall, the inner wall, or the bottom surface of the concrete buried in the ground is drained so that the structure is not damaged by water pressure.

As drainage treatment method, drainage method using drain board and drainage method using gravel are commonly used.

In the drainboard method, a drainboard is installed on the side of a concrete structure that touches the ground, and then the gravel is covered. In the gravel drainage method, gravel is piled on the surface of the concrete structure, and then the gravel is covered.

Among these methods, the gravel drainage method has a problem that the drainage ability is deteriorated because the gravel or dust particles flow into the gravels to block drainage (drainage). Due to such a problem, a drain board method is widely used in recent years to prevent the penetration of soil or residual particles.

The drainboard method is constructed by using a drain board structured in three dimensions between the concrete structure and the soil, so that the drainage effect is large, and the distribution of the soil or the residual particles is blocked through the drainage filter in particular. This minimizes the damage of the concrete structure by reducing the water pressure applied to the concrete structure.

Such a drain board is usually manufactured by attaching a non-woven fabric having permeability to a drain board made of resin. The drain board is generally made of plastic, and protrusions are formed at one side of the drain board at regular intervals. Then, the nonwoven fabric is adhered to the upper surface of the ridge portion of the drain board.

However, in the manufacture of the drain board, the conventional Korean Patent No. 10-0336098 entitled " Bubble type drain board manufacturing apparatus " is formed by only a method of sucking the drain board by the suction means on the surface of the forming roller.

FIG. 1 is a cross-sectional view showing an example of a part of a drain board manufacturing apparatus using a conventional first forming roller, and FIG. 2 is a view showing an example of a drain board manufactured using the manufacturing apparatus of FIG.

As shown in FIG. 1, in the conventional patent, the extruder 160 extrudes the raw material at 220 ° C to make it easy to mold and sends it to the die 170. The dice 170 pushes the plate material 150 to be used as an actual drain board in a state where the plate material 150 can be easily molded and the plate material 150 that comes out of the dice 170 comes into contact with the protrusion 110 at the upper end of the first forming roller .

When the plate member 150 contacts the first forming roller 100, the plate member 150 is sucked only through the suction hole 120 and the connection passage 130 to adsorb the plate member 150 to the first forming roller 100, And a protrusion 210 in the form of a protrusion 110 is formed.

However, as shown in FIG. 2, the drain board 200 manufactured only by the first shaping roller and the sucking means has a gap between the protrusions 210 of the drain board due to the instantaneous strong attraction force of the sucking means and the rotation speed of the shaping roller Thereby creating a ridge 220.

In case of a drain board used for a large structure, a large size drain board is rolled in the form of a roll, so that when the drain board is rolled, There is a problem that cracks may occur.

When the roll type is used, the curvature between the protrusions must be maintained to some extent, but the protrusions having the uniform shape between the protrusions cause cracks between the protrusions because they interfere with the bending force of the curve.

In the case of a drain board, drainage of the inside of the structure is used. If there is a ridge between protrusions, drainage is not performed smoothly. If the ridge is piled up on the ridge, the drainage function is lost.

However, in order to prevent such protrusions from being produced in the manufacturing process, it is possible to reduce the size of the protrusions to some extent by significantly lowering the rotation speed of the shaping rollers. However, this method significantly reduces the productivity of the drain board, There was a problem.

In this embodiment, the container portion between the protruding portions of the drain board is removed to allow the drain board to be transported and stored without cracking even when the drain board is rolled, and when the drain board is used for the construction, The purpose is to make it possible to do.

According to an aspect of the present invention, there is provided a drain board manufacturing apparatus for manufacturing a drain board using a plate material supplied with a predetermined thickness, the apparatus comprising: a protruding portion protruding outward to form a protrusion on a surface of the plate; A first shaping roller provided with a plurality of connection passages communicating with the protrusions and the protrusions so as to be rotatable in place and having a suction hole connected to the connection passage; An adsorption means for adsorbing the sheet material on the surface of the first shaping roller by discharging the inner air to the outside through the adsorption hole connected to the connection path; A second shaping roller which is rotatably installed at a position adjacent to the first shaping roller and has a plurality of protrusion complementary holes complementary to the protrusions to press the lower end of the first shaping roller protrusion toward the surface to remove the protrusions between the protrusions, The drain board manufacturing apparatus includes:

Also, a manufacturing method for making a drain board using a plate material supplied with a predetermined thickness includes the steps of bringing the plate into contact with the first shaping roller; A first molding progressing step of sucking the plate material onto the first shaping roller to produce a protrusion; A step of injecting the drain board, which has been firstly formed, into the space between the first shaping roller and the second shaping roller by squeezing; And a second molding step of removing the ridges formed on the drain board after the first molding.

The present invention also provides a method of manufacturing a drain board using a plate material having a predetermined thickness, the method comprising: injecting a sheet material between a first forming roller and a second forming roller by squeezing; A first molding step of sucking the plate material to the first shaping roller and a second shaping advancing step of removing the protrusions of the drain board by pressing between the first shaping roller and the second shaping roller And the drain electrode is electrically connected to the drain electrode.

According to the present embodiment, in the conventional drain board production method, the first shaping roller and the second shaping roller, which are complementary to each other, are joined to the existing first shaping roller to remove the ridges between the protrusions so that the drain board is rolled Even the drain board can be transported and stored without cracks.

Further, by using the drain board from which the ridges are removed, the drain function, which is actually used for the drain board, can be smoothly performed continuously.

1 is a cross-sectional view showing an example of a part of a drain board manufacturing apparatus using a conventional first forming roller.
FIG. 2 is a view showing an example of a drain board manufactured using the manufacturing apparatus of FIG.
3 is a side view showing an example of a first forming roller used in a drain board manufacturing apparatus according to an embodiment of the present invention.
FIG. 4 is a side view showing an example of a second forming roller used in a drain board manufacturing apparatus in which the shape of the projecting complementary hole is different according to another embodiment of the present invention.
Fig. 5 is a cross-sectional view showing an example of a part of a drain board manufacturing apparatus using the first forming roller of Fig. 3 and the second forming roller of Fig. 4;
6 is a partially enlarged longitudinal sectional view of the first forming roller for explaining the connecting passage and the suction hole of the first forming roller;
7 is a partially enlarged cross-sectional view of the first forming roller for explaining the connecting passage of the first forming roller;
8 is a cross-sectional view of the projection.
9 is a bottom view of the projection.
FIG. 10 is a view showing an example of a drain board produced using the manufacturing apparatus of FIG. 5 in which the second forming roller of FIG. 4 is modified.
11 is a flow chart showing a method of manufacturing the drain board according to the present embodiment.

Hereinafter, some embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that, in the drawings, like reference numerals are used to denote like elements in the drawings, even if they are shown in different drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present disclosure rather unclear.

In describing the constituent elements of this embodiment, first, second, i), ii), a), b) and the like can be used. Such a code is intended to distinguish the constituent element from other constituent elements, and the nature of the constituent element, the order or the order of the constituent element is not limited by the code. It is also to be understood that when an element is referred to as being "comprising" or "comprising", it should be understood that it does not exclude other elements unless explicitly stated to the contrary, do.

Hereinafter, an apparatus and a method for manufacturing a drain board according to the present invention will be described with reference to the accompanying drawings.

FIG. 3 is a side view showing an example of a first forming roller used in a drain board manufacturing apparatus according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view of a drain board manufacturing apparatus according to an embodiment of the present invention, Fig. 5 is a partial sectional view of the drain board manufacturing apparatus using the first forming roller of Fig. 3 and the second forming roller of Fig. 4; Fig.

3, 4 and 5, the drain board manufacturing apparatus according to the present embodiment includes a first forming roller 100 and a second forming roller 400.

As shown in FIG. 3, the first forming roller 100 is for manufacturing a drain board, and includes a plurality of protrusions 110 protruding radially outward from an outer circumferential surface thereof.

The plurality of protrusions are formed to protrude outward on the surface of the plate 150 that is extruded and transferred from an extruder or the like. It is needless to say that the first shaping roller 100 should be installed at a predetermined position so as to be rotatable about the first rotational shaft 140 as a center.

The protrusion 110 is formed with an air hole communicating with the inside thereof, so that the plate can be attracted, which will be described in detail later.

The first shaping roller 100 is connected to the adsorption means 320 and the adsorption means 320 is disposed between the first shaping roller 100 and the first shaping roller 100, And is adsorbed on the surface of the plate 150 to form the plate 150 into a required shape. The plate 150 is connected to the suction holes 120 to suck air in the connection passages 130 facing the suction holes 120.

4, the second forming roller 400 is for removing the protrusion 220 of the drain board, and is formed as shown in FIG. 4 (a), FIG. 4 (b) . ≪ / RTI > The final formed drain board according to the second forming roller 400 may be partially different in shape, which will be described in detail below.

The second shaping roller 400 has a plurality of protrusion complementary holes 410 which are complementary to the protrusions 110 of the first shaping roller 100. The outer surface of the second shaping roller 400 other than the projecting hole 410 is abutted against the drain board ridge 220 to remove the protrusion formed around the protrusion formed in the first shaping roller.

The projections 210 must be retained when the protrusions 220 are removed so that the shapes of the protrusions complementary holes 410 are not limited to the cylindrical shape, the octagonal column shape, the hexagonal shape, In the case of FIG. 4 (a), the projecting complementary hole 410 has a cylindrical shape. In FIG. 4 (b), the projecting complementary hole 410 ) Are in the form of square pillars.

When the projection complementary hole 410 is a hexagonal column or a square column, the raised portion may not be completely removed as compared with the columnar or octagonal column. However, the effect of the present embodiment is not significantly problematic.

The size of the projection complementary hole 410 will be described in detail below.

4C, when the complementary projection hole horizontal to the second rotation axis 420 is a row 430 in FIG. 4B, the complementary projection hole of each row is formed into one It is a connected form.

In the case of the second forming roller having the protrusion complementary hole 410 as shown in FIG. 4 (c), since the upper and lower protrusions 220 of the first-formed drain board 200 of FIG. 2 can be removed, Even if the drain board is rolled in a direction in which the base 220 is removed, there is no problem that conventional cracks occur.

However, when the drain board is used for construction, it is possible to smoothly drain the inside of the structure by removing all ridges 220 to the left and right as well as up and down. Therefore, It is preferable to use the second forming roller 400 having the complementary hole 410. [

The second shaping roller 400 has a cylindrical shape similar to that of the first shaping roller 100, and a second rotational shaft 420 is provided at the center of both sides.

 The inside of the second shaping roller is not specified. However, for example, the second shaping roller may be formed in a cylindrical shape as a hollow space to communicate with the projecting hole (410) At the same time, to cool the projecting portion 210 of the drain board in the secondary molding.

The second shaping roller must be provided at a predetermined position so as to be rotatable in place, and rotates in a direction opposite to the first shaping roller 100 about the second rotational shaft 420. Further, the positions of the projecting complementary holes 410 are made to be the same as the projections 110 of the first shaping roller so that they can be engaged with each other.

As shown in FIG. 5, the apparatus for manufacturing a drain board according to the present invention includes a first shaping roller 100 and a second shaping roller (not shown) 400 are engaged and the ridge portion 220 is compressed.

First, the plate 150 must be easily formed, so that the extruder 160 heats and compresses the raw material at a temperature of 150 ° C to 250 ° C, preferably 220 ° C, And the die 170 pushes the plate 150 of the size to be used as an actual drain board to the first shaping roller.

In this case, the height of the dies 170 from which the sheet material 150 is discharged is higher than the height of the upper ends of the protrusions 110 of the first shaping roller 100, so that the sheet material 150 is diagonally distributed from the dies 170 to the first shaping roller 100 And comes into contact with the projection 110 of the first forming roller.

When the plate member 150 comes into contact with the protrusion 110 of the first shaping roller 100, the plate member 150 is positioned above the suction hole 120 of the first shaping roller 100, 150 are sucked to the surface of the first shaping roller 100 to form a first preformed drain board 200 having protrusions 210 formed thereon.

The first forming roller 100 and the second forming roller 400 are in a state in which the first and second forming rollers 100 and 400 are in a state in which the first and second forming rollers 100, The protrusion 220 between the protrusions 210 is pressed by the compression of the outer surface of the second shaping roller 400 other than the protrusion complementary hole 410 and the protrusion 110 of the first shaping roller 100, And it is spread out.

The secondary molding can be performed simultaneously with the first molding or immediately after the first molding because the plate material is cooled after the primary molding so that the protrusions 220 between the protrusions 210 are kept in a constant shape This is to enable secondary molding before.

5, the position of the second shaping roller 400 is represented as being positioned at the upper end of the suction hole 120 of the first shaping roller 100 to express that the secondary shaping is performed simultaneously with the primary shaping .

However, in order for the second molding process to be performed immediately after the first molding process, the position of the second molding roller 400 is moved to the position of the advancing direction of the first molding roller 100, It is possible to perform secondary molding by the first shaping roller and the second shaping roller.

5, after the second forming of the drain board 500 from the first shaping roller 100, the nonwoven fabric 510 is transferred to the nonwoven fabric 510 using the nonwoven roller 520, .

The nonwoven rollers 520 need not necessarily be rotatable in a predetermined position, and rotate in a direction opposite to the first forming roller 100.

 The nonwoven fabric 510 is guided to the surface of the secondarily formed drainboard 500 where the protrusions 210 are formed on the surface of the first forming roller 100 and the non- The nonwoven fabric 510 can be adhered to the protruding portion 210 by being pressed toward the surface of the nonwoven fabric 100.

5, the size of the protrusion complementary hole 410 may include the size of the lower end portion of the protrusion 110 of the first shaping roller and the thickness of the protrusion 210 of the drain board being secondarily formed Size.

Fig. 6 is a partial enlarged vertical sectional view of the first forming roller for explaining the connecting passage and the suction hole of the first forming roller, and Fig. 7 is a partial enlarged cross- to be.

As shown in FIG. 6, the connection passage 130 in the first shaping roller is in line with the first rotation shaft 140, and one connection passage is entirely connected to the respective protrusions 110 for one row .

The first shaping roller 100 is rotated in the direction about the first rotation axis 140 except for the sliding contact cylinder 310. [

The air in the connection passage 130 is sucked into the suction holes 120 and adsorbed even in the projection screw holes 610 when the connection passages 130 meet the suction holes 120 of the fixed sliding contact cylinder 310 1, the plate member 150 outside the forming roller 100 is formed. The projection screw hole 610 is a hole formed by the coupling between the first shaping roller 100 and the projection 110 and is described in detail below.

As shown in FIG. 7, since the connection passage is parallel to the rotation axis, the connection passage 130 is positioned at a position where the first formation roller is connected to the lower portion of the projection located at the edge of the circle when viewed in cross section.

In the case of FIG. 7, the cross section of the connection passage 130 is shown as a rectangular shape, but it may be circular or other shapes.

The connection passage 130 rotates around the first rotation shaft 140 and is sucked into the suction hole 120 when the connection passage 130 is brought into contact with the fixed suction hole 120 of the sliding contact cylinder 310.

7, since the outer surface of the first shaping roller 100 on which the protrusions 110 are attached is circular, the outer surface of the first shaping roller 100 that meets the protrusions 110 is curved, and the protrusions 110 A protrusion gap 710 is formed in a portion where the protrusion 110 and the first forming roller 100 are in contact with each other.

Accordingly, the protrusion gap 710 is connected to the protrusion screw hole 610, so that the plate material is adsorbed through the protrusion gap 710 when the protrusion gap 710 is adsorbed.

Fig. 8 is a sectional view of the projection, and Fig. 9 is a bottom view of the projection.

As shown in Fig. 8, the projections 110 are screwed onto the surface of the first forming roller 100. As shown in Fig.

The protrusion 110 is formed of a protrusion upper portion 810 and a protrusion lower portion 820. The protrusion upper portion 810 has a shape in which the most common paper cup is turned upside down and a protrusion 210 is formed in the plate material 150 .

The lower projection 820 is composed of a threaded portion 830 and a cut-off portion 840. In the case of the threaded portion 830, the lower projection 820 functions as a male thread to fix the projection 110 to the first shaping roller.

The cut-off portion 840 is an empty space when the protrusion is engaged with the first forming roller 100 to form a protruding screw hole 610. The cut portion 840 is a vertically cut portion of a cylindrical protrusion lower portion 820. When the first shaping roller 100 and the protrusion screw hole 610 are formed, So that the passage 130 and the protrusion gap 710 are communicated with each other to allow the plate material to be sucked, so that primary molding is performed.

8, it is also possible to provide a protrusion gap hole 850 on the bottom surface of the protrusion upper portion 810.

The protrusion gap hole 850 is recessed in a semi-cylindrical shape inside the protrusion upper portion 810 on the bottom surface of the protrusion upper portion 810 in order to allow the protrusion gap 810 to be adsorbed in the protrusion gap 710, And extends in a cross shape from the center to the outer surface excluding the projecting lower portion 820, thereby further facilitating the adsorption in the first molding.

9, the lower projection 820 is composed of a threaded portion 830 and a cut-off portion 840. The cut-off portion 840 is formed in a threaded lower portion 820) is cut away. Therefore, even if the protrusion 110 is coupled to the first shaping roller 100, since the protrusion screw hole 610 is formed, it becomes possible to perform the adsorption for the first molding.

Further, as described above, it is also possible to provide the projection vent hole 850 on the bottom surface of the projection upper portion 810.

However, the protrusion gap hole 910 may be provided on the bottom surface of the protrusion upper portion 810 to enable the protrusion gap hole 850 not connected to the protrusion screw hole 610 to be sucked. The protrusion gap connection hole 910 is formed in the bottom surface of the protrusion upper portion 810 in a circumferential ring shape groove contacting the bottom surface of the protrusion upper portion 810 and the threaded portion 830 and the cut portion 840 of the protrusion lower portion 820 So that the paser projection gap hole 850 and the projection screw hole 610 are communicated with each other to cause the attraction even in the projection screw hole 610 and the non-continuous projection gap hole 850.

FIG. 10 is a view showing an example of a drain board manufactured using the manufacturing apparatus of FIG. 5, which is different from the second forming roller of FIG.

As shown in FIG. 10, the drain board formed in the drain board manufacturing apparatus according to the present embodiment is in a state in which the protrusion 220 is partially or completely removed between the protrusions 210, unlike the conventional drain board.

Therefore, it is possible to prevent cracks from occurring in the drain board even if the drain board produced in a large size is rolled. This is a decisive factor for the reliability of the drain board. Also, since the protruding portions 220 are not provided between the protruding portions 210, sediments or the like are not accumulated between the protruding portions used in the construction, so that the drain board can smoothly drain the present function.

As shown in FIG. 10, the shape of the second-shaped drain board 500 may vary depending on the shape of the second forming roller shown in FIG.

When a second forming roller as shown in FIG. 4 (a) is used, a drain board in which all the protruding portions 220 are removed as shown in FIG. 10 (a) is manufactured. 10 (b), when the second shaping roller is used as shown in FIG. 4 (b), the protruding portion 220 is removed from the mode, but the protruding portion 210 has a checkerboard- .

On the other hand, when the second forming roller as shown in FIG. 4C is used, a drain board in which the protrusion 220 is partially removed as shown in FIG. 10C is manufactured. In the case of the drain board in which the protruding portions 220 are partially left in FIG. 10 (c), there is no problem that cracks are generated between the protruding portions 210 even if the protruding portions 220 are rolled in a direction in which the protruding portions 220 are not present.

However, it is preferable to use a drain board from which all the protruding portions 220 are removed, as shown in FIG. 10 (a) or 10 (b), when considering the drain function of the drain board. In the case of the drain board of FIGS. 10 (a) and 10 (b), there is a difference in the form of a checkerboard shape, but there is no significant difference in the drain board function or the drainage function.

11 is a flow chart showing a method of manufacturing a drain board according to an embodiment of the present invention.

The manufacturing method of this embodiment starts with the extruder 160 extruding the raw material (S100). The extruder 160 heats and compresses the material at 220 ° C to make the plate 150 easier to mold.

After the extrusion process, the plate material of the size of the drain board to be formed through the die passes through the die (S200). Since the extruder 160 and the dies 170 are connected to each other, the plate 150 can be maintained at a high temperature so that the molding can be maintained easily.

The plate material 150 exiting the die passes through the process of contacting the first forming roller 100 (S300). The plate member 150 may have a different thickness depending on the use of the drain board. The plate member 150 in contact with the first forming roller is compressed and heated by an extruder before entering the first forming roller, It is easy.

The height of the dies 170 is higher than the height of the upper end of the first forming roller 100 so that the plate material 150 exiting the dies 170 falls down diagonally and contacts the first forming roller.

When the plate member 150 enters the first shaping roller 100 and is positioned in the suction hole 120, the first shaping roller starts primary molding while adsorbing the plate 150 (S400). When the first shaping roller 100 sucks the sheet material 150, the sheet material 150 proceeds in accordance with the shape of the protrusion of the first shaping roller. The suction attracts the plate material 150 through the projection screw hole 610 and the projection gap 710 to generate the projection 210 on the plate material 150.

The drain board having completed the adsorption process is a step (S500) after completion of the first molding. After the adsorption process, the drain board still rotates on the first shaping rollers before the secondary shaping proceeds and the drain board has the protrusions 210 in the adsorption step, while the protrusions 220 Have together.

Thereafter, the first molded drain board 200 is injected between the first shaping roller and the second shaping roller (S600). The first molded drain board 200 is still in a state where molding is likely to be performed before the cooling step.

The drain board between the first shaping roller 100 and the second shaping roller 200 is removed in step S700. The ridge portion 220 of the drain board is compressed by the outer surface of the first shaping roller 100 other than the protrusion 110 and the outer surface of the second shaping roller 400 other than the protrusion hole 410, Press to open.

When the protrusion 220 is pushed and spread on the drain board, the protrusion 210 is compressed to a portion other than the protrusion 210 of the drain board. The compressed portion has the effect of making the portion of the drain board protruding portion 210 other than the thicker portion thicker, thereby making the drain board harder.

The process of sucking the plate material to the first shaping roller S400 and the process of removing the protrusion 220 of the drain board S700 may be performed at the same time. In this case, The step of injecting between the first shaping roller and the second shaping roller (S600) may be omitted.

In addition, during the process of removing the protrusion 220 of the drain board, the protrusion 210 of the drain board in the second molding may be cooled (S800). The shape of the second forming roller 400 is cylindrical and the inside is hollow and communicates with the protrusion complementary hole 410 to easily introduce air into the outside, And cools the projecting portion 210 while abutting against the air.

The drain board that has passed through between the first shaping roller 100 and the second shaping roller 400 is a process in which the second shaping is completed (S900). The drain board 500 having completed the secondary molding has a form in which the protrusion 220 is removed and only the protrusion remains as shown in FIG.

After the secondary molding is completed, the drain board may be subjected to a process of attaching the nonwoven fabric to the upper end of the protrusion 210 of the drain board (S1000). The drain board used for construction is attached with a nonwoven fabric, and the nonwoven fabric serves to block the distribution of soil or residual particles.

After completing the nonwoven step, the drain board undergoes a cooling step (S1100). The drain board maintains the second molded form through the second post-forming cooling step.

However, the step of attaching the nonwoven fabric to the drain board (S1000) and the step of cooling the drain board (S1100) can be carried out by reversing the order.

The present invention is not intended to limit the scope of the present invention but to limit the scope of the present invention. The scope of protection of the present invention should be construed according to the claims, and all technical ideas considered to be equivalent or equivalent thereto should be construed as being included in the scope of the present invention.

100: first forming roller 110: projection
120: suction hole 130: connection passage
200: first molded drain board 210:
220: ridge portion 400: second forming roller
410: projecting hole 500: second molded drain board
610: projection screw hole 710: projection gap
810: upper projection 820: lower projection

Claims (17)

A drain board manufacturing apparatus for making a drain board using a plate material supplied with a predetermined thickness,
A first shaping roller provided with a plurality of protrusions protruding outwardly and a plurality of connection passages communicating with the inside of the protrusions so as to be rotatable in place so as to form protrusions on the surface of the plate, ;
An adsorption means for adsorbing the sheet material on the surface of the first shaping roller by discharging the inner air to the outside through the adsorption hole connected to the connection path;
A second shaping roller which is rotatably installed at a position adjacent to the first shaping roller and has a plurality of protrusion complementary holes complementary to the protrusions to press the lower end of the first shaping roller protrusion toward the surface to remove the protrusions between the protrusions,
And it includes a
The width of the projection complementary hole of the second shaping roller is the same as the dimension including the width of the projection lower portion of the first shaping roller and the projection thickness formed on the surface of the plate, The surface of the plate member presses the entire width between the projections of the plate member to remove ridges between the projections,
Wherein the inside of the second shaping roller is a cylindrical shape having an empty space, and the inner hollow space is communicated with the second shaping roller at the time of removing the protrusion by pressurization of the first shaping roller and the second shaping roller, Wherein said projecting portion of said plate material is cooled by convection in the air inside said second forming roller. The method according to claim 1,
Wherein a protruding portion of the protrusion has a shape in which a top of the paper cup is smaller than a diameter of a bottom of the lower portion and a circle of an upper end and a lower end of the paper cup are connected in a straight line. The method according to claim 1,
Wherein the protrusions are formed of a protrusion upper portion protruding outside the first shaping roller and a protrusion lower portion fixed to the first shaping roller, the shape of the lower portion of the protrusion being a thread portion to be engaged with the first shaping roller, Wherein the first forming roller and the protrusion are formed as a vertically cut portion to form a protruding screw hole when the first forming roller and the protrusion are engaged with each other. The method of claim 3,
Wherein a protrusion gap is formed in an area where the first shaping roller and the bottom surface of the protrusion are in contact with each other, and the protrusion gap is connected to the protrusion screw hole. 5. The method of claim 4,
And a protrusion gap hole is formed in a bottom surface of the protrusion upper part, the protrusion gap hole being formed in a bottom surface of the protrusion upper part in a semicircular shape in the inner direction of the protrusion upper part, Wherein the drain board is formed in a cross shape. 6. The method of claim 5,
And a protrusion gap connection hole formed in a bottom surface of the protrusion upper part, wherein the protrusion gap connection hole is formed in a bottom surface of the protrusion upper part in a ring shape along the bottom surface of the protrusion upper part and the thread part of the protrusion lower part, Wherein a groove is formed in an inner side of the upper part of the projection to connect the projection gap hole with the projection screw hole. The method according to claim 1,
Wherein the shape of the projection complementary hole is formed in the entirety of the second shaping roller in any one of a cylindrical shape, an octagonal column shape, a hexagonal column shape, and a square column shape. 8. The method of claim 7,
And the length of the circle of the base of the column when the projection complementary hole is the cylindrical shape is the sum of the length of the lower end of the protruded portion of the projection of the first shaping roller and the length of two thicknesses of the plate material. Drain board manufacturing equipment. 8. The method of claim 7,
And the length of one side of a quadrangular base of the quadrangular column is the sum of the length of the lower end of the protruded portion of the protrusion of the first shaping roller and the length of the two thicknesses of the plate material when the protuberant hole is the square pillar shape. Drain board manufacturing apparatus. delete 10. The method according to any one of claims 1 to 9,
A first shaping roller disposed at a position adjacent to the second shaping roller in a traveling direction of the first shaping roller and rotatably installed at a position adjacent to the first shaping roller so as to guide the nonwoven fabric to a surface of the sheet material on which the projecting portion is formed, The nonwoven fabric is pressed against the roller surface to bond the nonwoven fabric to the protruding portion,
Further comprising: a drain electrode for receiving the drain electrode; A manufacturing method for manufacturing a drain board using a plate material supplied with a predetermined thickness,
A step of bringing the sheet material into contact with the first forming roller;
A first molding progressing step of sucking the plate material onto the first shaping roller to produce a protrusion;
A step of injecting the drain board, which has been firstly formed, into the space between the first shaping roller and the second shaping roller by squeezing; And
A second molding step of removing a protrusion formed on the drain board after the first molding step;
It includes
Wherein the second molding step includes a plurality of protrusion complementary holes provided at positions adjacent to the first forming roller so as to be rotatable and complementary to the protrusions to press the lower ends of the first forming roller protrusions toward the surface, Wherein the width of the projection complementary hole of the second shaping roller is smaller than the width of the projecting portion formed on the surface of the plate and the width of the lower portion of the projection formed on the first shaping roller, The surface of the second shaping roller formed between the projections complementary holes presses the entire width between the projections of the plate material to remove the protrusions between the projections,
Further comprising the step of cooling the protrusions of the drain board in the second molding step after the second molding step
Wherein the cooling of the protrusions is performed by forming the second shaping roller in a cylindrical shape having an inner space as an empty space and communicating the inner space with the protuberance holes of the second shaping roller, Wherein the protruding portion of the drain board in the second molding is cooled by convection of air when the forming roller is pressed to remove the protrusion of the drain board. delete delete 13. The method of claim 12,
Further comprising the step of attaching a nonwoven fabric to the upper end of the protrusion of the drain board after the second forming step. delete delete

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