KR20130114373A - Manufacturing apparatus of wood plastic composite panel with continuous pattern - Google Patents

Abstract

PURPOSE: A manufacturing apparatus of a plastic wood composite panel is provided to be able to continuously mold unit panels with various patterns by molding a panel with a long molding band and transferring various patterns of the molding band to the panel. CONSTITUTION: A manufacturing apparatus of a plastic wood composite panel comprises a feeding port supplying raw materials, an extrusion unit extruding the melting raw materials, a molding part in which the raw materials extruded from the extrusion unit is molded, a pattern casting part (50) transferring patterns to the panel (1) extruded into a board by the molding part, a cooling unit cooling the molded panel, and a cutting unit cutting the cooled panel. The pattern casting part comprises a molding band (54) forming a pattern on the upper side of the panel extruded into a board, rollers (55D,55T,55M,55I) driven while supporting the molding band so that the molding band orbits, a moving roller capable of being moved in order to make the molding band strained, and a hydraulic system (57) connected to the moving roller, in which a stroke is expanded/contracted so that the moving roller is able to be moved.

Description

Manufacturing Apparatus for Manufacturing Composite Wood Panels with Continuous Patterns {Manufacturing Apparatus of Wood Plastic Composite Panel with Continuous Pattern}

The present invention relates to an apparatus for manufacturing a composite wood board manufactured by extrusion molding, in particular, to be configured to continuously mold the pattern of the various patterns such as wood grain pattern on the panel to be extruded.

Building materials using natural wood have the disadvantage of easily damaging its original form or texture due to water and sunlight. Therefore, a lot of research has been made on the development of synthetic wood that can compensate for the disadvantages of such natural wood. Such synthetic wood is mixed with wood fiber and synthetic resin in the form of granules or pellets at a certain magnification, and further mixed with various additives according to the purpose of the product, using a process such as extrusion or injection to form a composite wood board Make.

However, the synthetic wood board thus prepared is made of synthetic resin, which is a matrix component of the resin composite after extrusion, to form an outer layer on the surface of the board, so that, despite the use of wood fibers as a filler, due to the unique oily feel and high gloss of plastic, It does not exert its appearance and texture. Therefore, various efforts have been made to solve the shortcomings of the synthetic wood board.

As an attempt to express the natural appearance or surface texture of natural wood in a synthetic timber board, for example, a method using co-extrusion using pigments of different colors, a method of processing wood patterns by hand, a wood pattern Methods such as transfer and printing, and a method of laminating a film having a wooden pattern of a solid wood or an artificial material are used. However, these methods generally have disadvantages such as complicated manufacturing process and in some cases durability problems.

In order to solve the above problems, new methods have been proposed to give the surface of synthetic wood the texture most similar to the cut surface of natural wood. As a representative example, it is repeated by pressing or high-speed rotation by using a circular roll in which a constant intaglio and an embossed pattern are imprinted in the direction of the plate surface in the vertical upper portion of the synthetic wood proceeding in a predetermined direction using a power transmission device. There is a method of forming an embossed pattern. The method of forming the embossed wood pattern on the surface may be performed after cutting the extruded panel to a predetermined size.

On the other hand, as shown in Figure 1, the continuous manufacturing apparatus 100 of the synthetic wood panel panel having the appearance and texture of the natural wood described in Korean Patent Publication No. 10-0781932 (Public Date; 2007.05.31) Extruder 200 for extruding the resin composite to form a panel, a cooling device 300 for cooling the extruded panel, a take-off device 400 for taking out the cooled panel and transport to the subsequent process, the surface of the panel A surface treatment apparatus 500 for performing an embossing process and a brushing process, and a cutting device 600 for cutting the surface-treated panel to a predetermined size and shape, and the surface treatment apparatus 500 includes a bar as shown in FIG. Likewise, by pressing the panel 700 to which the embossing roll 530 performing the embossing process is mounted at a constant pressure, a pattern formed on the embossing roll 530 is molded on the panel 700. Then, the embossed pattern transferred from the embossing roll 530 is molded on the upper surface of the molded panel 700.

However, since only the pattern of the embossing roll is continuously formed on the upper surface of the panel, there is a problem that only the product having the pattern of the embossing roll is produced in the manufactured synthetic wood board.

Republic of Korea Patent Publication No. 10-0781932 (Publication date: May 31, 2007)

The present invention has been invented to solve the problems of the prior art as described above, the object of the present invention is to provide an apparatus for manufacturing a composite wood board configured to mold a pattern of various patterns such as wood grain pattern on the extruded panel have.

Apparatus for manufacturing a composite wood board according to the present invention for achieving the above object is a supply unit for supplying the raw material, an extrusion unit for extruding the molten raw material, a mold unit for molding the raw material extruded by the extrusion unit; A pattern molding part for transferring a pattern to a panel extruded into a plate by a mold part, a cooling part for cooling the molded panel, and a cut part for cutting the cooled panel, wherein the pattern molding part has an upper surface of the panel extruded from the sheet material. A forming band for shaping the pattern, rollers for supporting and driving the forming band so that the forming band is orbitally rotated, a movable roller movable to tension the forming band, and a movable roller connected to the movable roller. The technical feature is that the stroke includes a hydraulic system that expands and contracts.

In addition, according to a preferred embodiment of the present invention, chokes are mounted at both ends of the rollers to be mounted in the roller housing, and a long hole is formed in the roller housing so that chokes mounted at both ends of the moving roller can move along the long holes, and the moving rollers. The hydraulic system connected to the choke of the roller is mounted on the roller housing so that the moving roller can move along the long hole by the stroke extension of the hydraulic system.

In addition, according to a preferred embodiment of the present invention, different patterns are formed in each side of the forming band in the longitudinal direction of the forming band.

In addition, according to a preferred embodiment of the present invention, the forming band is a special steel or a flexible fiber material having a large elasticity.

In addition, according to a preferred embodiment of the present invention, the rollers are drive rollers for orbitally rotating the transfer roller and the forming band to press the panel, the moving roller, the transfer roller and the drive rollers are arranged in a triangular structure so that the forming band is a triangular track Rotate

In addition, according to a preferred embodiment of the present invention, the moving roller and the transfer roller is located below and the driving roller is located above the moving roller and the transfer roller, and the deflector roller inside the triangular structure of the moving roller and the transfer roller and the driving roller. Is located, the linear band running between the moving roller and the transfer roller is configured to proceed through the deflector roller.

As described above, the apparatus for manufacturing a composite wood board according to the present invention by molding the panel with a long forming band, it is possible to transfer the pattern of the various patterns of the forming band to the panel to continuously form the unit panels of various patterns. have.

1 is a conceptual diagram showing a continuous manufacturing apparatus of a composite wood panel panel disclosed in Republic of Korea Patent Publication No. 10-0781932,
2 is a conceptual view illustrating the surface treatment apparatus shown in FIG. 1.
3 is a conceptual diagram showing a manufacturing apparatus of a synthetic wood board according to the present invention,
4 is a detailed view showing the molding apparatus shown in FIG.
FIG. 5 is a cross-sectional view of the molding apparatus shown in FIG. 4.
6 is a cross-sectional view showing a relationship for adjusting the tension of the molding band shown in FIG.
7 is a conceptual diagram illustrating an example of various patterns of the forming band.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the apparatus for producing a composite wood board according to the present invention will be described in detail.

In the drawings, Figure 3 is a conceptual diagram showing a manufacturing apparatus of a composite wood board according to the present invention, Figure 4 is a detailed view showing the molding apparatus shown in Figure 3, Figure 5 is a cross-sectional view showing the molding apparatus shown in FIG. to be. And Figure 6 is a cross-sectional view showing a relationship for adjusting the tension of the forming band shown in Figure 5, Figure 7 is a conceptual diagram showing an example of various patterns of the forming band.

As shown in FIG. 3, the apparatus 10 for manufacturing a synthetic wood board includes a supply unit 20 for supplying raw materials, an extrusion unit 30 for melting and extruding the supplied raw material, and an extrusion unit 30. The mold part 40 to which the extruded raw material is molded, the pattern forming part 50 which transfers a pattern to the panel 1 formed by the mold part 40, and the cooling part which cools the molded panel 1 ( 60) and a cutout 70 for cutting the cooled panel 1.

On the other hand, as shown in Figures 4 and 5, the pattern forming portion 50 is mounted to the roller housing 51, the roller housing 51, rollers 55D, 55T, which are located inside the roller housing 51, A roller choke 53 supporting 55M and 55I, respectively, and a forming band 54 for forming a pattern on the upper surface of the panel 1 running in orbital rotation in contact with the rollers 55D, 55T, 55M and 55I. And any one of the rollers 55D, 55T, 55M, 55I is movable to tension the forming band 54.

Hereinafter, the pattern forming unit configured as described above will be described in detail.

The pattern forming portion 50 includes three rollers 55D, 55T, and 55M arranged in a triangular structure, and a deflector roller 55I located inside the three rollers 55D, 55T, and 55M. And one roller located in the downstream of the advancing direction of the panel 1 among the three rollers 55D, 55T, 55M is the roller 55M which can move to the advancing direction of the panel 1. In the following, the movable roller among the three rollers 55D, 55T, and 55M is referred to as a 'moving roller 55M', and the roller which presses the upper surface of the panel 1 which proceeds among the two fixed rollers is referred to as a 'transfer roller'. 55T ', and the roller located at the top vertex of the triangular structure is called the' drive roller 55D '. And the deflector roller 55I rotates idle.

On the other hand, the forming band 54 is in contact with the three rollers 55D, 55T, 55M arranged in a triangular structure on the inner surface of the band, the outer surface of the forming band 54 is in contact with the deflector roller 55I. Therefore, when the three rollers 55D, 55T, 55M rotate by the motor 56, the forming band 54 orbitally rotates in a triangular structure, and the forming band progresses from the transfer roller 55T to the moving roller 55M. 54 is raised upward by the deflector roller 55I. Here, the moving roller 55M is located on the upper side of the traveling panel 1 and does not pressurize the panel 1, and as shown in FIG. 5, the moving roller 55M is mounted on both sides of the moving roller 55M. ), The roller choke 53, which is supported to rotate, is positioned in the long hole 52 of the roller housing 51, so that the moving roller 55M can linearly reciprocate along the long hole 52.

Specifically, the long hole 52 is formed in the roller housing 51 in the advancing direction of the panel 1, and the choke 53 of the moving roller 55M slides along the long hole 52 in the long hole 52. To be mounted. And the hydraulic system 57 is mounted to the outside of the roller housing 51 is connected to the choke 53. Therefore, by extending the stroke of the hydraulic system 57, the choke 53 of the moving roller 55M moves to the rear of the traveling direction of the panel 1 and conversely, when the stroke is contracted, the choke 53 of the moving roller 55M is moved. Moves forward in the advancing direction of the panel 1.

As the moving roller 55M moves as described above, the length of the forming band 54 caught by the driving roller 55D, the transfer roller 55T, the deflector roller 55I, and the moving roller 55M can be adjusted. That is, the moving roller 55M is moved along the length of the forming band 54 so that the forming band 54 is tensioned across the four rollers 55D, 55T, 55M, 55I.

On the other hand, the drive side (motor-mounted side) of the roller housing 51 is equipped with a motor 56 for driving the driving roller 55D, the transfer roller 55T, and the moving roller 55M, and the motor 56 The sprocket fixed to the sprocket and the sprocket fixed to the shaft of the rollers 55D, 55T, 55M are connected by a chain so that the three rollers 55D, 55T, 55M are rotated by the driving of the motor 56. As the three rollers 55D, 55T, and 55M rotate, the forming band 54 rotates in a set triangular trajectory, and forms an upper surface of the panel 1 while enclosing the transfer roller 55T.

As the forming band 54 rotates along the four rollers 55D, 55T, 55M, and 55I, the patterns of the forming band 54 are transferred to the upper surface of the panel 1 by pressing the transfer roller 55T. do. Specifically, the pattern of the pattern is formed in the longitudinal direction of the forming band 54, the panel 1 is formed in the longitudinal direction of the panel 1, the pattern of the pattern formed in the forming band 54 is extruded. The panel extruded from the mold part 40 is a product having a radius of about 150 degrees, and the pattern of the forming band 54 is easily transferred. The forming band 54 is made of a special steel material that does not easily crack even if the track rotates along the four rollers 55D, 55T, 55M, and 55I. It can be configured with a structure in which a pattern is formed on a flexible material such as glass fiber.

In addition, the panel 1 to which the pattern is transferred from the pattern forming unit 50 is cured while passing through the cooling unit 60, and is cut at intervals of the pattern transferred to the panel 1 from the cutting unit 70. The pattern of the other pattern is molded in the unit panel cut in this way.

Therefore, the apparatus for manufacturing a composite wood board according to the present invention has an advantage of producing unit panels having various patterns through a continuous process.

On the other hand, when replacing the forming band 54, the moving roller 55M moves along the long hole 52 of the roller housing 51 to compensate for the length of the replaced forming band, the movement of the moving roller 55M To replace the chain to compensate for the gap between the shaft of the motor 56 and the shaft of the moving roller 55M.

Alternatively, the moving roller 55M may also be configured to rotate idle. In this case as well, the transfer roller 55T and the drive roller 55D rotate by the power of the motor 56, so that the forming band 54 can be orbitally rotated.

1: Panel
10: apparatus for manufacturing synthetic wood board
20: supply part
30: extruded part
40: mold part
50: pattern molding part
51: roller housing
52: longevity
53: Choke
54: forming band
55D, 55T, 55M, 55T: Roller
56: motor
57: hydraulic system
60: cooling unit
70: cutout

Claims (6)

A supply part for supplying raw materials, an extrusion part for extruding the molten raw material, a mold part for molding the raw material extruded by the extrusion part, a pattern molding part for transferring a pattern to a panel extruded from a sheet material by the mold part, And a cooling unit for cooling the molded panel, and a cutting unit for cutting the cooled panel.
The pattern forming part and the molding band for forming a pattern on the upper surface of the panel extruded from the sheet material,
Rollers which support and drive the molding band so that the molding band rotates orbitally;
A movable roller for tensioning the forming band,
An apparatus for producing a composite wood board, comprising: a hydraulic system connected to a moving roller to expand and contract a stroke to move the moving roller.
The method of claim 1,
Chokes are mounted at both ends of the rollers to be mounted in the roller housing, and long holes are formed in the roller housing so that chokes mounted at both ends of the moving roller can move along the holes, and the hydraulic system connected to the choke of the moving rollers is mounted to the roller housing. And the movable roller is movable along the long hole by the expansion and contraction of the hydraulic system.
3. The method according to claim 1 or 2,
Apparatus for producing a composite wood board, characterized in that different patterns on each side of the forming band is formed for each zone in the longitudinal direction of the forming band.
The method of claim 3,
Forming band is a device for producing a composite wood board, characterized in that the elastic material is a special steel or flexible fiber material.
The method of claim 1,
The rollers are drive rollers for orbitally rotating the transfer roller and the forming band for pressing the panel, and the moving roller, the transfer roller and the drive roller are arranged in a triangular structure to manufacture the composite wood board, wherein the forming band rotates in the triangular orbit. Device.
The method of claim 5,
The moving roller and the transfer roller are located at the bottom and the driving roller is located at the top between the moving roller and the transfer roller, and the deflector roller is located inside the triangular structure of the moving roller and the transfer roller and the driving roller. The linear band is an apparatus for producing a composite wood board, characterized in that configured to proceed through the deflector roller.

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