KR102356446B1 - A method of manufacturing synthetic wood in which molding and surface processing are integrated - Google Patents

Abstract

The present invention relates to a manufacturing method of a composite wood deck, and more specifically, to a manufacturing method of a composite wood deck in which molding and surface processing are performed before cooling a semi-synthetic wood deck. The manufacturing method performs surface processing treatment before cooling the semi-synthetic wood deck from an extruder in a cooling frame, but performs surface processing treatment by scraping a surface with an ultra-low-speed rotary knife or a fixed knife. The manufacturing method recycles by-products by inhaling molding by-products generated during the surface processing treatment and transporting the same to a raw material tank, does not generate dust, and has an energy-saving effect.

Description

A method of manufacturing synthetic wood decks in which molding and surface processing are performed before the semi-synthetic wood deck is cooled {A method of manufacturing synthetic wood in which molding and surface processing are integrated}

The present invention relates to a method for manufacturing a synthetic wood deck, and more particularly, a method of surface-processing a semi-synthetic wood deck from an extruder before cooling it in a cooling frame, but scraping the surface with an ultra-low-speed rotary knife or a fixed knife. Semi-synthetic wood decking is a semi-synthetic wood deck that performs surface processing, absorbs molding by-products generated during surface processing, transfers them to the raw material tank, and recycles by-products. It relates to a method for manufacturing a composite wood deck that proceeds before cooling.

Building materials using natural wood have a disadvantage in that they are easily damaged in their original shape or texture due to water or sunlight. Therefore, synthetic wood that can compensate for the shortcomings of such natural wood has been widely distributed. This synthetic wood is made by mixing powdered wood fiber and synthetic resin at a certain ratio, and additionally mixing various additives according to the product use, and then extruding or injecting the primary raw material in the form of pellets to form a panel. It is made into a circular product.

In recent years, synthetic wood surface processing that directly processes the surface of synthetic wood has been performed. In this conventional synthetic wood surface processing apparatus, a plurality of wire brushes are mounted on a rotating motor to synthesize the surface of the composite wood moving along the conveying roller. The wood surface is cut (scratched) to express the wood texture.

However, in the case of conventional synthetic wood surface processing, due to the repetitive surface processing process, fine brush dust (dust) of 100 to 200 mesh was generated very severely. Therefore, there were several problems, such as a decrease in the efficiency of work due to maintenance or equipment replacement due to the occurrence of a failure, and the need for a dust collection facility.

In addition, during surface processing and polishing, by-products mixed with wire brush pieces are generated due to fine dust and friction. Pure synthetic wood dust is recyclable, but by-products mixed with metallic wire brush pieces are difficult to sort and reuse, and waste There is a disadvantage of being treated at a higher unit price than general waste during treatment.

On the other hand, in the conventional synthetic wood production process, the molding process and the surface processing process are separated, and the surface processing process collects the dust generated during grinding with a high-speed rotating brush with a dust collection facility, but a perfect treatment is impossible. It contaminates the extrusion molding line and the surrounding production line and work space and induces fine dust in the air, so there is a disadvantage in that productivity is lowered by keeping a considerable distance between the molding process and the surface processing process or operating separately in a separate space.

And, when manufacturing the conventional composite wood deck, the WPC (Wood Plastic Composite) raw material is heated in an extruder to about 200 degrees, which is a high temperature, and is continuously molded through a mold, cooled with water, and then polished with a brush to increase the slip resistance. At this time, since the brush work is performed after cooling the composite wood deck with water, the moisture absorbed on the surface of the composite wood causes agglomeration of work by-products on the brush. Since it can be excessively polished in the , the grinding process must be performed after sufficient cooling, and the workability is inefficient because it must be transferred to a grinding process in a separate space after cooling.

In addition, in the case of the water cooling type, since it has to pass through the cooling water section, a vacuum pump with a large capacity is required to prevent the outflow of water toward the inlet and outlet, and energy efficiency is poor.

In addition, due to the high temperature required for conversion to the raw material in the gel state in the extruder, the energy requirement is also very large.

In addition, the rotating brush operating for non-slip processes the surface with the brush in only one direction, that is, in the direction transferred from the extruder. It has the disadvantage of low resistance.

KR 10-0892394 (registration number) 2009.04.01. KR 10-1119570 (registration number) 2012.03.06. KR 10-1493997 (registration number) 2015.03.03.

Accordingly, the present invention has been devised to solve the conventional problems as described above,

Accordingly, the present invention has been devised to solve the conventional problems as described above,

Forming and surface processing are performed before cooling the semi-synthetic wood deck from the extruder in the cooling frame, but dust is not generated as well as dust is not generated by processing the surface by scraping the surface with an ultra-low speed rotation or a fixed knife. An object of the present invention is to provide a method for manufacturing a synthetic wooden deck that recycles the generated molding by-products and performs molding and surface processing to obtain an energy-saving effect before the semi-synthetic wooden deck is cooled.

Another object of the present invention is that the surface processing is not a one-way polishing method, but can be polished in both directions (front and back, left and right), so that the composite wood deck can be molded and surfaced to ensure uniform sliding resistance in the longitudinal and lateral directions. It is to provide a method for manufacturing a composite wood deck that proceeds before cooling.

Another object of the present invention is that the fixed knife for molding moves up and down in synchronization with the height of the semi-synthetic wood deck, and the transfer and discharge of the molding by-products are made smoothly to prevent damage to the fixed knife and improve productivity. It is to provide a method for manufacturing a synthetic wood deck in which processing is performed before the semi-synthetic wood deck is cooled.

Another object of the present invention is that the fixed knife installed on the upper plate and the guide roller before or after the fixed knife are operated by maintaining the same line, so that the pressing force of the fixed knife is processed by the weight of the upper plate and the parts mounted on the upper plate. When the synthetic wood deck with surface irregularities is processed, the fixed knife is adjusted with a spring pressure less than its own weight and the fixed knife rises. will do

Another object of the present invention is that even if the surface of the semi-synthetic wood deck of high temperature discharged from the extruder and the mold is molded and processed, brush dust does not occur, and the molding by-products ejected from the high-temperature semi-synthetic wood deck are transferred to the raw material tank as it is. It is to provide a method for manufacturing a synthetic wood deck in which the semi-synthetic wood deck is cooled before the semi-synthetic wood deck is cooled by molding and surface processing that can reduce raw material savings and waste generation by transporting and recycling.

Another object of the present invention is to lower the temperature of the semi-synthetic wood deck by air movement by the rotation of the circulation fan, and transfer the air raised by contact with the semi-synthetic wood deck to the raw material tank to achieve energy savings. It is to provide a method for manufacturing a synthetic wood deck in which surface processing is performed before the semi-synthetic wood deck is cooled.

Another object of the present invention is to reduce the energy consumption required for grinding by molding and surface processing a semi-synthetic wood deck in a soft state at high temperature, while providing molding and surface processing that does not attach contaminants to the semi-synthetic wood deck in a soft state. An object of the present invention is to provide a method for manufacturing a composite wood deck that proceeds before the composite wood deck is cooled.

In order to achieve the above object, the present invention provides a method for manufacturing a synthetic wood deck in which molding and surface processing are performed before the semi-synthetic wood deck (1) is cooled, the semi-synthetic wood deck transferred through the extruder (E) and the mold ( 1) a fixed knife 220 for uniformly shaping the upper surface, and a first grinding roller 600 having a plurality of protrusions 19 formed on the surface to form scratches on the upper surface formed by the fixed knife 220 ) is provided with a surface processing step (S10) and; An air cooling step (S20) of receiving the semi-synthetic wood deck (1) discharged in the surface processing step (S10) and lowering the temperature of the semi-synthetic wood deck (1) by the circulation fan (25); a drawing step (S30) of drawing the semi-synthetic wood deck (1) cooled in the air cooling step (S20) to the drawer (35); A cutting step (S40) of cutting the continuous semi-synthetic wood deck (1) pulled by the drawer (35) to a required length to form a composite wood deck (2); Including a packaging step (S50) of loading and packaging the composite wood deck (2), the surface processing step (S10) is the upper surface of the semi-synthetic wood deck (1) inside the knife box 200 in one direction Molded with the fixed knife 220 coupled to the cylindrical body 210 provided with the rotating screw 211 , and a molding by-product discharge unit formed on the cylindrical body 210 to the outside where the fixed knife 220 is disposed A molding and by-product discharge step (S110) of discharging the raw material to the raw material tank (T) in which the raw material transferred to the extruder (E) through (213) is stored (S110); Forming a scratch on the upper surface of the semi-synthetic wood deck (1) with the first grinding roller (600) It includes a surface processing step (S150).

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The surface processing step (S10) of the present invention is a first guide roller 100 or a second guide for guiding the semi-synthetic wood deck 1 to move in a straight direction before or after the forming and discharging by-products step (S110). A guide roller 300 is further installed, and the first guide roller 100 or the second guide roller 300 moves up and down in synchronization with the fixed knife 220; At the rear end of the knife box 200, a plurality of rotary knives 410 are installed on the precision grinding roller 400 to precisely shape the surface of the semi-synthetic wood deck 1 molded with the fixed knife 220 and rotate. .

The width of the fixed knife 220 of the present invention is equal to or greater than the width of the semi-synthetic wood deck (1).

In the surface processing step (S10) of the present invention, the upper plate 11 and the lower plate 12 are installed to be spaced apart along the extrusion direction of the semi-synthetic wood deck 1; In the forming and discharging by-products step (S110), the pressure sensor 241 is mounted on the knife box adjustment unit 240 connected to the top of the knife box connection unit 230 for installing the knife box 200, and the set value of the pressure sensor 241 When it is lowered, the upper plate 11 is automatically raised by the double-acting cylinder 250 .

Between the molding and discharging of by-products of the present invention (S110) and the surface processing step (S150), a processing step (S140) of processing with a grinding machine 500 guided by a sliding guide 510 is further included; In the processing step (S140), the composite wood deck 1 is ground back and forth by rotating the grinder 500 at a low speed, and left and right grinding with the articulated sliding guide 510 .

In the air cooling step (S20) of the present invention, the cooling frame 20 in which a plurality of the circulation fans 25 are disposed surrounds the semi-synthetic wood deck 1, and the air inside the cooling frame 20 is the It is transferred to the raw material tank (T) by the circulation fan (25).

The temperature of the semi-synthetic wood deck (1) of the present invention is maintained higher than the air cooling step (S20) in the surface processing step (S10).

The synthetic wood deck of the present invention is a wood powder mixture 55-63 wt%, synthetic resin 23-27 wt%, binder 2.3-2.7 wt%, lubricant 1.6-1.8 wt%, flame retardant 3-11 wt%, pigment 1.5-3.0 wt% and 1 to 1.5% by weight of an antioxidant, wherein the wood flour mixture includes 85 to 95% by weight of wood flour, 2 to 10% by weight of chestnut shells, and 2 to 7% by weight of peanut shells.

The fixed knife 220 of the present invention is connected to the knife connection part 214 from the outside of the cylindrical body 210, the knife connection part 214 is formed by an angle-controlled hinge.

The surface processing step (S10) of the present invention is performed with the knife box 200 in a flattened state in which the lower plate 12 and the upper plate 11 are spaced apart. When adjusting the flattening of the lower surface of the first grinding roller 600, it consists of a lever and a gap adjusting nut. The knife box adjusting unit 240 and the first grinding roller adjusting unit 620 are manually adjusted, and at the lower end of each adjusting unit, the knife box adjusting unit 260 and the first grinding roller adjusting unit 630 are composed of a lever and a spring stiffness adjusting nut. Adjust the spring strength.

Accordingly, the present invention has been devised to solve the conventional problems as described above,

Forming and surface processing are performed before cooling the semi-synthetic wood deck from the extruder in the cooling frame, but dust is not generated as well as dust is not generated by processing the surface by scraping the surface with an ultra-low speed rotation or a fixed knife. An object of the present invention is to provide a method for manufacturing a synthetic wooden deck that recycles the generated molding by-products and performs molding and surface processing to obtain an energy-saving effect before the semi-synthetic wooden deck is cooled.

Another object of the present invention is that the surface processing is not a one-way polishing method, but can be polished in both directions (front and back, left and right), so that the composite wood deck can be molded and surfaced to ensure uniform sliding resistance in the longitudinal and lateral directions. It is to provide a method for manufacturing a composite wood deck that proceeds before cooling.

Another object of the present invention is that the fixed knife for molding moves up and down in synchronization with the height of the semi-synthetic wood deck, and the transfer and discharge of the molding by-products are made smoothly to prevent damage to the fixed knife and improve productivity. It is to provide a method for manufacturing a synthetic wood deck in which processing is performed before the semi-synthetic wood deck is cooled.

Another object of the present invention is that the fixed knife installed on the upper plate and the guide roller before or after the fixed knife are operated by maintaining the same line, so that the pressing force of the fixed knife is processed by the weight of the upper plate and the parts mounted on the upper plate. When the synthetic wood deck with surface irregularities is processed, the fixed knife is adjusted with a spring pressure less than its own weight and the fixed knife rises. will do

Another object of the present invention is that even if the surface of the semi-synthetic wood deck of high temperature discharged from the extruder and the mold is molded and processed, brush dust does not occur, and the molding by-products ejected from the high-temperature semi-synthetic wood deck are transferred to the raw material tank as it is. It is to provide a method for manufacturing a synthetic wood deck in which the semi-synthetic wood deck is cooled before the semi-synthetic wood deck is cooled by molding and surface processing that can reduce raw material savings and waste generation by transporting and recycling.

Another object of the present invention is to lower the temperature of the semi-synthetic wood deck by air movement by the rotation of the circulation fan, and transfer the air raised by contact with the semi-synthetic wood deck to the raw material tank to achieve energy savings. It is to provide a method for manufacturing a synthetic wood deck in which surface processing is performed before the semi-synthetic wood deck is cooled.

Another object of the present invention is to reduce the energy consumption required for grinding by molding and surface processing a semi-synthetic wood deck in a soft state at high temperature, while providing molding and surface processing that does not attach contaminants to the semi-synthetic wood deck in a soft state. An object of the present invention is to provide a method for manufacturing a composite wood deck that proceeds before the composite wood deck is cooled.

1 is a schematic flowchart of a method for manufacturing a synthetic wood deck in which the molding and surface processing of the present invention are performed before the semi-synthetic wood deck is cooled;
Figure 2 is a flow chart of the synthetic wood deck manufacturing method in which the molding and surface processing of the present invention are performed before the semi-synthetic wood deck is cooled;
3 is a detailed flowchart of the surface processing step (S10) of the present invention,
4 is a schematic diagram showing the structure of the surface processing step (S10) according to the present invention,
5 is a plan view showing a state in which the semi-synthetic wood deck 1 is introduced into the first guide roller of the present invention;
6 is a side view of a knife box and a fixed knife in the forming and surface processing step of the present invention;
7 is a perspective view of a cylindrical body inserted into the knife box of the present invention,
8 is a side view showing a state in which the grinding machine of the surface processing frame of the present invention is connected to the sliding guide;
9 is a plan view and a side view showing a state in which the first guide roller of the present invention is formed in a T-shape;
10 is an exemplary view of the first grinding roller of the present invention,
11 is a structural diagram of the lower planarization operation of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement them.

The present invention is a synthetic wood manufacturing method in which molding and surface processing are integrated before being cooled in a cooling device, as shown in FIGS. 1 to 11,

In the synthetic wood deck manufacturing method in which molding and surface processing are performed before the semi-synthetic wood deck (1) is cooled,

A fixed knife 220 that uniformly shapes the upper surface of the semi-synthetic wood deck 1 transferred through the extruder E and the mold, and the surface to form a scratch on the upper surface molded by the fixed knife 220 a surface processing step (S10) in which a first grinding roller 600 having a plurality of protrusions 19 formed thereon is provided;

an air cooling step (S20) of receiving the semi-synthetic wood deck (1) discharged in the surface processing step (S10) and lowering the temperature of the semi-synthetic wood deck (1) by the circulation fan (25);

a drawing step (S30) of drawing the semi-synthetic wood deck (1) cooled in the air cooling step (S20) to the drawer (35);

A cutting step (S40) of cutting the continuous semi-synthetic wood deck (1) pulled by the drawer (35) to a required length to form a composite wood deck (2);

and a packaging step (S50) of loading and packaging the composite wood deck (2).

At this time, the surface processing step (S10) includes a surface processing frame (10),

A first guide roller (100) installed on the surface processing frame (10) in which the upper plate (11) and the lower plate (12) are spaced apart from each other by the extruder (E) and the semi-synthetic wood deck (1) transferred from the mold along the extrusion direction (100) ) to guide the first guide step (S100) and,

The upper surface of the semi-synthetic wood deck 1 is molded (polished) with the fixed knife 220 coupled to the cylindrical body 210 provided with a screw 211 rotating in one direction inside the knife box 200, and , The fixed knife 220 is disposed to the outside through the molding by-product discharge part 213 formed in the cylindrical body 210 to the raw material transferred to the extruder (E) is stored in the raw material tank (T) molding And a by-product discharge step (S110),

A second guide step (S120) of guiding the semi-synthetic wood deck (1) with a second guide roller (300);

A polishing step (S130) of grinding the semi-synthetic wood deck (1) by rotating at an ultra-low speed a plurality of rotary knives 410 installed on the precision grinding roller 400;

A processing step (S140) of processing the semi-synthetic wood deck (1) with a grinding machine (500) guided by a sliding guide (510) (S140);

A surface processing step (S150) of forming a scratch with the first grinding roller 600 having projections 19 so that the semi-synthetic wood deck 1 is slip-prevented (S150);

A rough finishing step (S160) of finishing the semi-synthetic wood deck (1) with a second grinding roller (700);

and a third guide step (S170) of guiding the semi-synthetic wood deck (1) to a third guide roller (800) to prevent separation by pressing.

The synthetic wood deck 2, which is the final product manufactured in the present invention, is usually about 100 to 200 cm with the width of the walkway in the vertical direction, the width in the horizontal direction is 10 to 15 cm, and the height is 2 to 3 cm. This composite wood deck (2) has a side groove (3) is formed on the side and is coupled to the lower square pipe through a clip, and a plurality of upper grooves (4) are formed on the upper surface in the longitudinal direction.

The synthetic wood deck is 55 to 63% by weight of wood powder mixture, 23 to 27% by weight of synthetic resin, 2.3 to 2.7% by weight of binder, 1.6 to 1.8% by weight of lubricant, 3 to 11% by weight of flame retardant, 1.5 to 3.0% by weight of pigment and antioxidant 1 to 1.5% by weight.

The wood flour mixture includes 85 to 95% by weight of wood flour, 2 to 10% by weight of chestnut shells, and 2 to 7% by weight of peanut shells.

The wood powder mixture is preferably contained in an amount of 55 to 63% by weight, when it contains less than 55% by weight, it is difficult to provide an appearance or texture corresponding to natural wood, and when it is contained in an amount exceeding 63% by weight, the surface of the synthetic wood is rough due to excessive wood flour content. It is difficult to manufacture high-quality synthetic wood because wood powder peeling occurs.

The wood powder may be any one or more of conifers and broad-leaved trees.

The chestnut shell can be expected to have a sterilizing effect due to the tannin component, and a pest repelling effect can be expected.

The chestnut shell may use any one or more of chestnut shell or chestnut endothelium.

The peanut shell can be expected to improve the physical properties due to the tough fibrous component.

The peanut shell may use any one or more of the peanut shell or the peanut endothelium.

The present invention has an effect of recycling discarded raw materials by including chestnut shells and peanut shells in a wood flour mixture.

The synthetic resin is preferably included in an amount of 23 to 27% by weight, and when less than 23% by weight is included, there is a problem in durability, weight reduction and corrosion resistance, and when included in an amount exceeding 27% by weight, there is a problem in that the impact strength is weakened.

The synthetic resin is not particularly limited, and may include, for example, 65 to 75% by weight of HDPE and 25 to 35% by weight of polypropylene.

It is preferable to use the synthetic resin by pulverizing it in order to be uniformly mixed.

The binder is preferably contained in an amount of 2.3 to 2.7% by weight. The binder improves the bonding force between the synthetic resin and the wood flour to increase bending strength and elastic modulus, and serves to improve dimensional stability and impact strength and dispersibility of wood flour.

The binder is not particularly limited, and may include, for example, 60 to 70% by weight of maleic anhydride polyethylene (Maleic Anhydride PE) and 30 to 40% by weight of maleic anhydride polypropylene (Maleic Anhydride PP). .

The lubricant is preferably contained in an amount of 1.6 to 1.8% by weight, and when it is contained in less than 1.6% by weight, there is a problem that the effect of improving the dispersibility of the wood flour is insufficient, and when it is contained in an amount exceeding 1.8% by weight, the physical properties of the synthetic wood may be reduced.

The lubricant improves the surface composition of the synthetic wood by increasing the dispersibility of the wood flour in the process of mixing the synthetic resin and the wood flour. That is, it serves to increase the productivity by improving the workability of the synthetic wood.

The lubricant is not particularly limited, and a silicone-based lubricant may be used.

In the past, glycerin fatty acid esters are mainly used as lubricants, but there is a disadvantage in that durability is deteriorated due to migration phenomenon occurring and changing physical properties.

The present invention does not cause migration by using a silicone-based lubricant as a lubricant, and has an adhesive force to prevent shrinkage and expansion, has an effect of improving strength, and has an effect of reducing the coefficient of thermal expansion.

The flame retardant is preferably included in an amount of 3 to 11% by weight, and when it is included in less than 3% by weight, there is a problem in that the flame retardant performance is deteriorated, and when it is included in more than 11% by weight, the physical properties of the synthetic wood may be reduced.

The flame retardant is not particularly limited, and 50 to 60% by weight of red phosphorus, 10 to 20% by weight of potassium silicate, 10 to 20% by weight of expanded graphite, 1 to 5% by weight of perlite, 1 to 5% by weight of diatomaceous earth, kaolin It may contain 1 to 5% by weight and 1 to 5% by weight of boric acid.

The red has an advantage in that the flame retardant effect is excellent and the flame retardant effect does not decrease even after a long time has elapsed. The red color has the advantage of not needing to use a red inorganic pigment because the synthetic wood has a red color due to the red color of the flame retardant itself. In addition, red is non-toxic and thermally stable.

Since the potassium silicate has excellent adhesive properties, it is possible to improve adhesion to wood flour as well as improve flame retardancy.

The expanded graphite has a layered crystal structure, and the expanded graphite of such a structure is foamed 20 to 350 times by flame, water, and an oxidizing compound formed by combustion to form a porous structure to prevent heat transfer to the combustible material. It prevents the flame from adhering to the combustible material and acts as a trapping toxic gas in the porous structure, thereby exhibiting an excellent flame retardant effect. Therefore, the expanded graphite can significantly suppress flammability, and also prevent the emission of toxic gases.

When the natural mineral generated by volcanic activity is expanded to a high temperature, the volume of the perlite expands several tens of times to produce perlite, which is an ultra-light polymorphic white particle. This expanded material can be used as a building material because it has high fire resistance, heat insulation, and sound absorption as well as light weight.

The diatomaceous earth is composed of a complex structure, primary and secondary pores, and has a very low density, so it is used as an excellent filter aid, adsorbent, additive, abrasive, and the like.

The kaolin is mainly composed of kaolinite (kaolinite) and halloysite, and feldspar is produced through chemical weathering by carbonic acid and water. Pure white or slightly gray, as a raw material for ceramics, used for white porcelain, Buncheong porcelain, and celadon inlaid porcelain. only

Not only that, but it also has excellent fire resistance and thermal insulation properties, so it has excellent performance as a building material, and is easy to obtain and inexpensive.

The boric acid serves to prevent the flame retardant from flying away as dust in case of fire.

The pigment is not particularly limited, and iron oxide may be used.

The reason iron oxide is used as a pigment is because it resembles the color of natural wood.

The antioxidant is not particularly limited, and those used in the synthetic wood composition may be used.

In the present invention, the synthetic wood deck 2, which is the final product, is formed in the same manner as the final product by the cutting step (S40), and there is a difference from the finished product before the cutting step (S40). In the present invention, the state that is not the final product is expressed as a semi-synthetic wooden deck (1). When the semi-synthetic wood deck (1) comes out of the mold (F) from the extruder (E), the side grooves (3) on the side and the upper grooves (4) are formed on the upper surface, and the bar is cut while passing the mold (F). It means before step S40. When the semi-synthetic wood deck (1) and the composite wood deck (2) are mentioned at the same time, they are referred to as composite wood decks.

In the extruder (E), the material is transferred from the raw material tank (T) through the hopper, and the material is melted in a gel state to be manufactured in the desired shape in the mold, so it maintains a high temperature and requires a lot of energy. In the present invention, the temperature of the material in the raw material tank (T) is 30 ~ 40 ℃, the raw material tank (T) is connected to the surface processing frame 10 and the cooling frame (20). After the surface processing frame 10 is formed with a fixed knife 220 in the semi-synthetic wood deck 1, the by-product is transferred, and in the cooling frame 20, the semi-synthetic wood deck 1 by the circulation fan 25 In contact with the air, the heated air moves.

The surface processing frame 10 and the cooling frame 20 have a shape that is sealed as much as possible except for the conveyor belt. The surface processing frame 10 is, in addition to the forming and discharging by-products step (S110), by-products by the rotary knife 410 in the polishing step (S130), by-products processed by the grinding machine 500 in the processing step (S140), surface processing treatment A by-product generated after being scratched by the first grinding roller 600 in step S150 and a by-product by the second grinding roller 700 in the rough finishing treatment step S160 may be moved.

In the surface processing frame 10, the semi-synthetic wood deck 1 is in a high temperature state of 140 to 160 ° C. When the by-products (including hot high temperature air) at such a high temperature are transferred to the raw material tank T by the suction duct, As the temperature inside the raw material tank T rises, energy consumption can be reduced.

In addition, the temperature of the semi-synthetic wood deck 1 in the cooling frame 20 is about 80 ~ 100 ℃, and the air heated by the rotation of the semi-synthetic wood deck 1 and the circulation fan 25 is converted into a raw material tank (T). ) to achieve energy savings in the extruder (E).

The semi-synthetic wood deck (1) is discharged from the extruder (E) and the mold (F) and is molded and surface-processed in the surface processing frame (10) before being cooled in the cooling frame (20).

As described above, in the semi-synthetic wood deck 1 where molding and surface processing are performed in the surface processing frame 10, molding by-products including dust generated during molding and surface processing are transferred to the raw material tank T through the suction duct D. is moved, and is transferred from the raw material tank (T) to the extruder (E) via a hopper through a transfer screw to be recycled.

On the other hand, the surface processing frame 10 includes a first guide roller 100, a knife box 200, a fixed knife 220, a second guide roller 300, a precision grinding roller 400, a grinding machine 500, The upper plate 11 and the lower plate 12, on which several processing machinery devices are installed, such as the first grinding roller 600, the second grinding roller 700, and the third guide roller 800, are the first guides at the four corners. (13), the second guide 14, the third guide (not shown), and the fourth guide (not shown) are installed at regular intervals, and the first guide 13, the second guide 14, the third The upper plate 11 is supported from the lower plate 12 by the guide and the fourth guide. And the lower plate 12 also serves to support the semi-synthetic wood deck 1 to move from the upper part.

When the semi-synthetic wood deck (1) is introduced into the first guide roller (100) of the surface processing frame (10) in the step (S100) of guiding the semi-synthetic wood deck (1) with the first guide roller (100), the semi-synthetic wood deck (1) It is raised by the thickness of the composite wood deck (1) so that the knife box 200 and the fixed knife 220 are maintained at the same level.

At this time, the first guide roller 100 is disposed on the synthetic wood deck (1) as high as the height and rotates as much as the speed of the extruder (E) to advance the semi-synthetic wood deck (1) from the upper portion of the lower plate (12). The second guide roller 300 is also disposed on the lower plate 12 as high as the first guide roller 100 .

The first guide roller 100 is connected to the upper plate 11 by a first guide roller connection part 110 and is adjustable by a first guide roller adjustment part 120 connected to the first guide roller connection part 110 . provided

As described above, in the first guide step (S100) of guiding the semi-synthetic wood deck 1 with the first guide roller 100, the first guide roller 100 is formed in a cylindrical shape from the upper portion of the semi-synthetic wood deck 1 Guides, or T-shaped, semi-synthetic wood deck (1) is guided from both sides along the side grooves (3) on both sides, or it is balanced and guided from both sides.

When the first guide roller 100 is formed in a T-shape, as shown in FIG. 7 , the protrusion 101 inserted into the side grooves 3 concavely formed on both sides of the semi-synthetic wood deck 1 is formed and the lower plate It is installed in (12) and holds it from both sides of the semi-synthetic wood deck (1) so that it goes straight. When the first guide roller 100 is formed in a T-shape, the load is reduced by smoothly moving the semi-synthetic wood deck 1 . And, when the first guide roller 100 is balanced, it is guided from both sides of the semi-synthetic wood deck 1 without protrusions. When the first guide roller 100 is T-shaped or balanced, it guides the direction so that the semi-synthetic wood deck 1 moves in a straight line on the lower plate 12 .

On the other hand, when all the mechanical devices are mounted on the upper plate 11, the weight can be about 200 kg, and the fixed knife 220 connected to the upper plate 11 comes down by its own weight to deeply grind the semi-synthetic wood deck (1). As a result, a defective product may be generated or it may give a burden to the machine, so a pressure sensor 241 is installed on the upper part of the knife box 200 so that when it is lower than the set value, the upper plate 11 with the fixed knife 220 automatically rises. do.

This is so that the double-acting cylinder 250 installed on the upper plate 11 lifts the upper plate 11 to ensure safety in the machinery when there is a problem in processing.

In this way, the semi-synthetic wood deck 1 is molded with a fixed knife 220 and the semi-synthetic wood deck 1 is polished with a fixed knife 220 in the molding and by-product discharge step (S110) for discharging molding by-products, and The molding by-product is discharged through the screw 211 of the cylindrical body 210, but the pressure is applied to the knife box adjustment unit 240 connected to the top of the knife box connection unit 230 for installing the knife box 200 on the upper plate 11. Since the sensor 241 is mounted, when it is lower than the set value of the pressure sensor 241 , the upper plate 11 automatically rises by the double-acting cylinder 250 to raise the fixed knife 220 .

In this way, the first guide roller ( 100), the knife box 200, and the second guide roller 300 are operated while maintaining the same height.

The knife box 200 has a cylindrical body 210 installed on the inside, a screw 211 is rotated on the inside of the cylindrical body 210 by a driving motor (not shown), and a fixed knife 220 passes through. The knife opening 212 to be installed and the molding by-product discharge part 213 through which the molding by-products ground in the semi-synthetic wood deck 1 by the fixed knife 220 move along the screw 211 and are discharged are formed through do.

At this time, the molding by-product discharge part 213 is connected to the suction duct (D) so that the molding by-product is moved. The width of the fixed knife 220 is equal to or larger than the width of the semi-synthetic wood deck 1, so that the upper surface of the semi-synthetic wood deck 1 can be formed at once by the fixed knife 220. In addition, the knife opening 212 into which the fixed knife 220 is inserted should be formed to be larger than the width of the composite wood deck. Since the molding by-product discharge part 213 is disposed outside the knife opening 212, it is disposed on the outside of the semi-synthetic wood deck 1 that moves in position.

In addition, the screw 211 rotates in only one direction while being inserted into the cylindrical body 210 and smoothly discharges the molding by-products to the molding by-product discharge unit 213 .

In addition, the knife box 200 is connected to the upper plate 11 through a knife box connection part 230 , and the knife box connection part 230 is installed to be adjustable through the knife box adjustment part 240 .

The fixed knife 220 is installed through the knife box 200, as shown in FIG. 6, is connected to the knife connection part 214 from the outside of the cylindrical body 210, and is a knife provided with a bolt and a nut. It is fixedly installed using the fixing means 221 , and is provided so as to be able to adjust the height using the knife height adjustment means 222 . The knife connection part 214 is preferably formed of a hinge that can be adjusted to an optimal angle (about -45° to +45°) that can be molded.

And the fixed knife 220 is connected through a fixed knife connection part 223 that is installed through the upper plate 11, and the height can be adjusted using the fixed knife adjustment part 224.

The first guide roller 100 , the knife box 200 , the fixed knife 220 , and the second guide roller 300 are equipped with a spring at the connection part connected to the upper plate 11 , so that they are stable when adjusted by the adjusting unit. It is provided to be stretchable. This includes the precision grinding roller 400, the grinding machine 500, the first grinding roller 600, the second grinding roller 700, and the third guide roller 800 installed at the rear end of the second guide roller 300. provided in the same way. As shown in FIG. 10 , the first grinding roller 600 may be an anti-slip scratch suitable for an environment in which the composite wood deck 2 is installed by protruding protrusions 19 of various shapes.

A double-acting cylinder 250 capable of lifting the upper plate 11 is installed between the fixed knife 220 and the second guide roller 300 .

The second guide roller 300 serves to guide the semi-synthetic wood deck 1 like the first guide roller 100 .

And, the semi-synthetic wood deck 1 passing through the second guide roller 300 is introduced into the precision grinding roller 400 .

A plurality of rotary knives 410 are installed in the precision grinding roller 400, and the rotary knife 410 reduces knife abrasion and allows the stationary knife 220 to grind a portion that has not been ground. And the molding by-products generated at this time are moved to the raw material tank (T) through the suction duct (D) connected to the surface processing frame (10) to be recycled.

The precision grinding roller 400 installs a plurality of rotary knives 410 rotating at an ultra-low speed or a single knife is fixedly installed to precisely grind the semi-synthetic wood deck 1 .

On the other hand, wood-plastic composite flooring (KS F 3230) measures the slip resistance in the extrusion direction and the opposite direction in the slip resistance (CSR) item of the specification and sees a low value as the result. They have low sliding resistance in the extrusion direction. However, the higher the slip resistance, the higher the safety, so that the semi-synthetic wood deck 1 of the present invention is polished in both directions rather than a one-way polishing method to ensure slip resistance.

Accordingly, in the present invention, the grinding machine 500 is installed at the rear end of the precision grinding roller 400 and longitudinal/transverse grinding is performed by the sliding guide 510 . At this time, the grinding machine 500 is provided mechanically or has a structure that can be used as a substitute for a CNC engraver.

The grinding machine 500 is composed of an emboss roller and a flat scratch roller, rotates at a low speed to grind the composite wood deck 1 back and forth, and moves left and right using a sliding guide 510 made of an articulation type for grinding.

In this case, the sliding guide 510 is provided to adjust the distance using the distance adjusting bolt 511 and is driven by the sliding guide motor 520 .

The grinding machine 500 is installed on the upper plate 11 as a grinding machine connection part 530 , and a spring is installed on the upper plate 11 .

On the other hand, the present invention passes the processing step (S140) of processing the semi-synthetic wood deck (1) with the grinding machine 500 guided by the sliding guide 510, so that the semi-synthetic wood deck (1) is slip-prevented. A surface processing step (S150) of forming a scratch with the first grinding roller 600 provided with the protrusion 19, and rough finishing of the semi-synthetic wood deck 1 with a second grinding roller 700 In the processing step (S160), two rough finishing processes are performed.

The first grinding roller 600 and the second grinding roller 700 are rough-finished with coarse sandpaper or a diamond wheel so that there is no slippery part on the synthetic wood deck 1, and the second grinding roller 700 plays a role in cleaning.

The by-products generated in the grinding machine 500 , the first grinding roller 600 , and the second grinding roller 700 can also move to the suction duct (D).

And, the present invention is to transfer the composite wood deck (1) from the surface processing device (10) to the cooling device through the step (S800) of guiding to the third guide roller (800) to prevent separation by pressing.

The air cooling step (S20) of the present invention cools the temperature of the semi-synthetic wood deck 1 through a plurality of circulation fans 25 installed in the cooling frame 20, and comes into contact with the semi-synthetic wood deck 1 and is raised. High-temperature air (about 70-90° C.) is transferred to the raw material tank T by the power of the circulation fan 25. The cooling frame 20 has a closed frame except for the part where the semi-synthetic wood deck 1 flows in and out, and the temperature of the semi-synthetic wood deck 1 by the flow of air by the circulation fan 25 is reduced. Since it is lowered, there is no need for equipment for moisture leakage, and energy savings in the extruder can be induced by feeding back hot air.

The semi-synthetic wood deck 1 that has passed through the air cooling step (S20) is pulled by the extractor 35 and transferred to the next step, the cutting step (S40).

The cutting step (S40) is a step of forming the composite wood deck 2 by cutting the continuous semi-synthetic wood deck 1 pulled by the drawer 35 with the cutting machine C to a required length, and the cutting step (S40) ) from the composite wood deck (2). The semi-synthetic wood deck 1 has a continuously long length, and is cut to a required length in the cutting step (S40), and then the composite wood deck (2) is loaded and packaged in the packaging step (S50).

Meanwhile, in the flattening state in which the lower plate 12 and the upper plate 11 are spaced apart in the surface processing step (S10), the first guide roller 100, the knife box 200, the second guide roller 300, the precision grinding The roller 400, the first grinding roller 600, the second grinding roller 700, the third guide roller 800, the first guide roller adjustment unit 120 consisting of a lever and a gap adjusting nut when adjusting the flattening of the lower surface of the guide roller 800, Knife box adjusting unit 240, fixed knife adjusting unit 224, second guide roller adjusting unit 320, precision grinding roller adjusting unit 420, first grinding roller adjusting unit 620, second grinding roller adjusting unit 720, second 3 The guide roller adjustment unit 820 is manually adjusted, and at the lower end of each adjustment unit, the first guide roller adjustment unit 130 consisting of a lever and a spring stiffness adjustment nut, a knife box adjustment unit 260, a fixed knife adjustment unit 225, The second guide roller adjusting unit 330, the precision grinding roller adjusting unit 440, the first grinding roller adjusting unit 630, the second grinding roller adjusting unit 730, and the third guide roller adjusting unit 830 are screwed. As the time axis descends, the spring stiffness is adjusted.

In addition, the first guide roller 100 is installed on the upper plate 11 as shown in FIG. 11 , and may be fixedly coupled with bolts while being inserted into the first guide roller frame 140 , and the first A height adjustment bolt 141 for horizontal and fine height adjustment of the first guide roller 100 may be further provided under the guide roller frame 140 .

In this way, in a state in which the first guide roller 100 is inserted into the first guide roller frame 140 , the gap between it and the lower plate 12 is adjusted by the first guide roller adjusting unit 120 , and the first guide roller adjusting unit The strength and weakness of the spring 111 are adjusted with 130, and the horizontal and height can be adjusted inside the first guide roller frame 140 with the height adjustment bolt 141.

In addition, the second guide roller 300 and the third guide roller 800 are also fixedly coupled to the upper plate 11 while being inserted into the frame like the first guide roller 100, so as to have a gap between the second guide roller 300 and the lower plate 12 . , it is formed in a structure that can adjust the strength and weakness of the spring and adjust the horizontal and fine height.

Therefore, in the method for manufacturing a synthetic wood deck in which molding and surface processing of the present invention are performed before the semi-synthetic wood deck is cooled, molding and surface treatment are performed before cooling the semi-synthetic wood deck from the extruder in the cooling frame, It is processed by a method of scraping the surface with a low-speed rotation or a fixed knife, recycling molding by-products generated during surface processing, and not only does not generate dust, but also has the advantage of obtaining an energy-saving effect.

1: Semi-synthetic wood deck 2: Synthetic wood deck
3: side groove 4: upper surface groove
10: surface processing frame
11: upper plate 12: lower plate
13: first guide 14: second guide
19: projection 20: cooling frame
25: circulation fan 35: withdrawal machine
100: first guide roller 101: protrusion
110: first guide roller connection 111: spring
120: first guide roller adjustment unit 121: sensor pressure gauge
130: first guide roller control unit 140: first guide roller frame
141: height adjustment bolt
200: knife box 210: cylindrical body
211: screw 212: knife opening
213: molding by-product discharge part 214: knife connection part
220: fixed knife 221: knife fixing means
222: knife height adjustment means 223: fixed knife connection part
224: fixed knife adjustment unit 225: fixed knife adjustment unit
230: knife box connection 240: knife box adjustment unit
241: pressure sensor 250: double-acting cylinder
260: knife box control unit
300: second guide roller 310: second guide roller connection part
320: second guide roller adjustment unit 330: second guide roller adjustment unit
400: precision grinding roller 410: rotary knife
420: precision grinding roller adjustment part 430: precision grinding roller connection part
440: precision grinding roller control unit
500: grinding machine 510: sliding guide
511: distance adjustment bolt 520: sliding guide motor
530: grinding machine connection part
600: first grinding roller 610: first grinding roller connection part
620: first grinding roller adjusting unit 630: first grinding roller adjusting unit
700: second grinding roller 710: second grinding roller connection part
720: second grinding roller adjusting unit 730: first grinding roller adjusting unit
800: third guide roller 810: third guide roller connection part
820: third guide roller adjusting unit 830: third guide roller adjusting unit

Claims (11)

In the synthetic wood deck manufacturing method in which molding and surface processing are performed before the semi-synthetic wood deck (1) is cooled,
A fixed knife 220 for uniformly shaping the upper surface of the semi-synthetic wood deck 1 transferred through the extruder E and the mold, and the surface to form a scratch on the upper surface molded by the fixed knife 220 a surface processing step (S10) in which a first grinding roller 600 having a plurality of protrusions 19 formed thereon is provided;
An air cooling step (S20) of receiving the semi-synthetic wood deck (1) discharged in the surface processing step (S10) and lowering the temperature of the semi-synthetic wood deck (1) by the circulation fan (25);
a drawing step (S30) of pulling the semi-synthetic wood deck (1) cooled in the air cooling step (S20) to the drawer (35);
A cutting step (S40) of cutting the continuous semi-synthetic wood deck (1) pulled by the drawer (35) to a required length to form a composite wood deck (2);
Including; a packing step (S50) of loading and packaging the composite wood deck (2);

The surface processing step (S10) is
The upper surface of the semi-synthetic wood deck 1 is molded into the fixed knife 220 coupled to the cylindrical body 210 provided with a screw 211 rotating in one direction inside the knife box 200, and the fixed knife Forming and discharging the by-products to the raw material tank (T) in which the raw material transferred to the extruder (E) is stored through the molding by-product discharge part 213 formed in the cylindrical body 210 to the outside in which 220 is disposed. (S110);
Forming a scratch on the upper surface of the semi-synthetic wood deck (1) with the first grinding roller (600) Including a surface processing step (S150);
A synthetic wood deck manufacturing method in which molding and surface processing are performed before the semi-synthetic wood deck is cooled.
delete According to claim 1,
The surface processing step (S10) is
A first guide roller 100 or a second guide roller 300 for guiding the semi-synthetic wood deck 1 to move in a straight direction is further installed at the front or rear end of the molding and by-product discharging step (S110), and the The first guide roller 100 or the second guide roller 300 moves up and down in synchronization with the fixed knife 220;
At the rear end of the knife box 200, a plurality of rotary knives 410 are installed on the precision grinding roller 400 to precisely shape the surface of the semi-synthetic wood deck 1 molded with the fixed knife 220 and rotate. ;
A synthetic wood deck manufacturing method in which molding and surface processing are performed before the semi-synthetic wood deck is cooled.
According to claim 1,
The width of the fixed knife 220 is equal to or greater than the width of the semi-synthetic wood deck (1)
A synthetic wood deck manufacturing method in which molding and surface processing are performed before the semi-synthetic wood deck is cooled.
According to claim 1,
In the surface processing step (S10), the upper plate 11 and the lower plate 12 are installed spaced apart along the extrusion direction of the semi-synthetic wood deck (1);
In the forming and discharging by-products step (S110), the pressure sensor 241 is mounted on the knife box adjustment unit 240 connected to the top of the knife box connection unit 230 for installing the knife box 200, and the set value of the pressure sensor 241 When it is lower than that, the upper plate 11 automatically rises by the double-acting cylinder 250.
A synthetic wood deck manufacturing method in which molding and surface processing are performed before the semi-synthetic wood deck is cooled.
According to claim 1,
Between the molding and discharging by-products step (S110) and the surface processing step (S150), the processing step (S140) of processing with the grinding machine 500 guided by the sliding guide 510 is further included;
In the processing step (S140), the composite wood deck 1 is ground back and forth by rotating the grinding machine 500 at low speed, and left and right grinding with the articulated sliding guide 510.
A synthetic wood deck manufacturing method in which molding and surface processing are performed before the semi-synthetic wood deck is cooled.
According to claim 1,
In the air cooling step (S20), the cooling frame 20 in which a plurality of the circulation fans 25 are disposed surrounds the semi-synthetic wood deck 1,
The air inside the cooling frame 20 is transferred to the raw material tank T by the circulation fan 25.
A synthetic wood deck manufacturing method in which molding and surface processing are performed before the semi-synthetic wood deck is cooled.
According to claim 1,
The temperature of the semi-synthetic wood deck (1) is maintained higher than the air cooling step (S20) in the surface processing step (S10)
A synthetic wood deck manufacturing method in which molding and surface processing are performed before the semi-synthetic wood deck is cooled.
According to claim 1,
The synthetic wood deck is 55 to 63% by weight of a wood powder mixture, 23 to 27% by weight of synthetic resin, 2.3 to 2.7% by weight of binder, 1.6 to 1.8% by weight of lubricant, 3 to 11% by weight of flame retardant, 1.5 to 3.0% by weight of pigment and antioxidant Including 1-1.5% by weight,
The wood flour mixture comprises 85 to 95% by weight of wood flour, 2 to 10% by weight of chestnut shells, and 2 to 7% by weight of peanut shells
A synthetic wood deck manufacturing method in which molding and surface processing are performed before the semi-synthetic wood deck is cooled.
According to claim 1,
The fixed knife 220 is connected to the knife connection part 214 from the outside of the cylindrical body 210,
The knife connection part 214 is formed of an angle-adjustable hinge.
A synthetic wood deck manufacturing method in which molding and surface processing are performed before the semi-synthetic wood deck is cooled.
6. The method of claim 5,
The surface processing step (S10) is
In a flattened state in which the lower plate 12 and the upper plate 11 are spaced apart, the knife box 200 and When adjusting the flattening of the lower surface of the first grinding roller 600, it consists of a lever and a gap adjusting nut. The knife box adjusting unit 240 and the first grinding roller adjusting unit 620 are manually adjusted, and at the lower end of each adjusting unit, the knife box adjusting unit 260 and the first grinding roller adjusting unit 630 are composed of a lever and a spring stiffness adjusting nut. adjusting spring strength
A synthetic wood deck manufacturing method in which molding and surface processing are performed before the semi-synthetic wood deck is cooled.

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