KR20210049246A - Method for manufacturing a complex light wood pole using domestically produced oak tree - Google Patents

Abstract

The present invention relates to a method for manufacturing a complex light wood pole using a domestically produced oak tree. According to the present invention, utilization as a high value-added product can be significantly enhanced with respect to a domestically produced oak tree, an oak tree thinning-out tree in particular, and oak tree fission and warping can be easily prevented during drying for stable product manufacturing. The manufacturing method includes a raw wood cut lumber preparation step (S10) of preparing raw wood cut lumber by sawing oak, a heating plate installation step of stacking the raw wood cut lumber and a heating plate on a cart to form a laminated lumber (S20), a drying chamber sealing step (S30) of putting the cart into the drying chamber and sealing the drying chamber, a vacuum forming step (S40) of forming a vacuum inside the drying chamber, a vacuum pressurizing step (S50) of pressing the laminated lumber with the pressing plate by forming the vacuum, a raw wood drying step (S60) of circulating hot water through the heating plate to dry the raw wood cut lumber and form a dried wood block wood, a pressing pressure control step (S70) of adjusting the pressing force by the pressing plate inside the drying chamber during drying of the raw wood cut lumber, a room temperature cooling step (S80) of cooling the dried wood block material, a high heat treatment step (S90) of treating the dried square material with high heat, a wood beam forming step of processing and bonding the two dried square materials to form a wood beam (S100), and an outer surface processing step (S110) of processing the outer surface of the wooden lamp pole into a cylindrical shape to complete the street lamp pole.

Description

Method for manufacturing complex street light liquor using domestic oak {METHOD FOR MANUFACTURING A COMPLEX LIGHT WOOD POLE USING DOMESTICALLY PRODUCED OAK TREE}

The present invention relates to a method for manufacturing complex street lamps, and more particularly, the utilization of domestic oaks as a high value-added product, especially for oak thinning, is smoothly prevented and the splitting and twisting of oaks during drying are smoothly prevented, so that the product is stably manufactured. It relates to a method for manufacturing complex street lanterns using domestic oak trees.

In general, streetlight poles are usually manufactured by processing metal. Metal streetlight poles can be commonly installed on general roads and residential areas. Metal streetlight poles are made by rolling steel plates to make lampposts or by welding steel plates to each other.

However, in recent years, in consideration of eco-friendly urban aesthetics, the installation of streetlight poles made of wood that does not harm the natural scenery in the access roads of natural green facilities such as recreation forests, parks, and golf courses is increasing. Streetlight poles made of such conventional wood are completed by bonding the pieces of wood using an adhesive or a bonding tool.

On the other hand, as a result of the survey on the use of domestic broadleaf trees in Korea, it is traded in units of weight (tons) regardless of tree species, and the dimensions are 2.1m long, the diameter of horses is over 23cm for oaks, and crafts such as elm and elm trees. Trees of special value are supplied in more than 19cm. Hardwood bundles containing even a small amount of wood of high value as a craft material were trading at a higher price per unit weight than those that did not. Hardwood materials, excluding craft materials, are being used to manufacture products such as tool bags, even if they are sanctioned.

In particular, oak thinning for forest cultivation, that is, oak thinning, has a relatively small diameter, so it is less useful, and almost all of it is left in the forest to be discarded, and only part of it is crushed into sawdust, which is used for fuel such as wood pellets. It is being used only.

The reason why domestic oak, such as thinning, is significantly low, that is, the reason for not attempting to produce high-value-added products such as flooring, floorboards, or furniture using oak is a lack of processing technology such as drying technology suitable for oak. It is known to be the main cause.

However, there was a problem in that the conventional street lamps made of wood were warped, cracked, or separated due to seasonal temperature changes and moisture absorption, and there was a problem that the wood was cracked, damaged, spoiled aesthetics, and there was a high risk of breaking the wood due to strong winds. .

In addition, the domestic oak has a small diameter and has many bent trees, so it is difficult to manufacture it as a wooden street lamp due to high drying defects due to easily splitting or warping during drying, and the yield is very low.

Registered Patent No. 0984738 "A streetlight pole assembled with a wooden unit structure and a method for manufacturing a streetlight pole using the same" (2010.09.27.)

Accordingly, the present invention was conceived to solve all the problems of the prior art as described above,

It is an object of the present invention to manufacture a complex street light liquor using a domestic oak tree to ensure that the product is stably manufactured by smoothly preventing the splitting and twisting of the oak tree during drying while remarkably increasing the utilization as a high value-added product for domestic oak, especially oak thinning It is in providing a way.

In order to achieve the above object, the "manufacturing method for complex street lamps using domestic oak" according to the present invention is a drying chamber having a door that can be opened and closed in the front, a rail is installed on the inner lower surface, and a square through hole is formed on the upper surface. Wow; A bogie provided on an upper surface of the rail and removable in and out of the drying chamber along the rail; A drying unit provided with a heating plate sandwiched between wood and wood on the top of the bogie, and drying the wood by heating the heating plate with hot water; A vacuum pump installed outside the drying chamber and connected to an air suction pipe in communication with the drying chamber; An elastic cover provided on an upper surface of the drying chamber to cover the through hole and formed of an elastic rubber material, and an upper surface attached to the lower surface of the elastic cover into the interior of the drying chamber and disposed to correspond to the upper surface of the wood. A vacuum pressurizing unit including a pressurizing plate; A plurality of elastic support portions installed in the drying chamber and elastically supporting both ends of each of the pressing members so that the pressing members 54 moved downward can be elastically restored upwards; A room temperature cooling unit connected to the drying unit and supplying room temperature water to the heating plate to cool the wood to room temperature; In the method of manufacturing a complex street deungju using a domestic oak drying device comprising; A step of preparing a timber timber by collecting thinned or felled oak trees and cutting the collected oak trees into timber to prepare a tree timber; A heating plate installation step of forming a laminated wood by alternately stacking the green timber and a heating plate on the upper surface of the bogie; A drying chamber sealing step of injecting the bogie loaded with the laminated wood into the drying chamber and closing the door to seal the drying chamber; A vacuum forming step of actuating the vacuum pump to discharge the air inside the drying chamber to the outside through the air suction pipe to form a degree of vacuum in the drying chamber; As a vacuum is formed in the drying chamber by the vacuum pump, the elastic cover is extended downward by the discharge of air into the drying chamber, and the pressing plate is moved downward, so that the pressing plate touches the upper surface of the laminated wood. A vacuum pressurizing step of pressurizing; A drying step of circulating hot water through the heating plate while the vacuum is maintained inside the drying chamber to heat and dry the timber timber in the laminated timber to form dry timber; A room temperature cooling step of circulating room temperature coolant to the heating plate through the room temperature cooling unit after drying of the laminated wood is completed, while a vacuum is maintained inside the drying chamber to cool the dried timber to room temperature; Wood forming a processed tree by processing a semicircular groove in the longitudinal direction along the center of one side of the dried timber, and forming a wooden stump by bonding the two processed trees with the grooves to form a circular hole inside Forming a light pole; An outer surface processing step of processing the outer surface of the wooden lamppost into a cylindrical shape to complete the lamppost; It characterized in that it includes.

In addition, after the step of drying the trees of the "method for manufacturing composite street lamps using domestic oak" according to the present invention, the degree of vacuum inside the drying chamber by the vacuum pump is lowered for several seconds while drying the wooden timber. A pressing force adjusting step of intermittently lowering the pressing force of the laminated wood for several seconds while the pressing plate is moved upward by the elastic support part; Next to the room temperature cooling step, after removing the dried timber from the drying chamber, the cooling process is put into a wood high heat treatment apparatus, and a high heat treatment step of performing high heat treatment at a temperature of 180 degrees Celsius to 250 degrees Celsius; It characterized in that it further includes.

In addition, in the step of forming the timber stump in the "method for producing a composite street light pole using domestic oak" according to the present invention, the dried cut timber is a single timber or a combined timber in which several timbers are bonded to each other, and two of the above processing The neck is formed by processing a toothed engaging jaw to engage with each other on the inner side, which is a portion to be bonded to each other, and the engaging jaw is formed in a pair on the bonding portion of the processed neck, and one of the pair of engaging jaws The engaging jaw of is characterized in that it is formed to protrude and the other engaging jaw is formed to be recessed.

In the present invention as described above, the utilization of domestic oak, especially oak thinning, as a high value-added product can significantly decrease unnecessary disposal due to poor drying of the oak, and smoothly prevent splitting and twisting of the oak during drying. As a result, the warped timber can be unfolded before drying, so that the product is stably manufactured, and accordingly, the resource utilization efficiency of domestic timber is remarkably increased.

In addition, according to the present invention, if the present technology is applied to domestic timbers, such as oak, birch, zelkova, maple, etc., which are generally difficult to manufacture with wooden streetlights, it is possible to obtain a wooden streetlighting product of a desired quality.

1 is a step diagram showing a method for manufacturing a complex street lamp according to the present invention,
Figure 2 is a schematic cross-sectional view of a composite street lamp manufactured according to the present invention,
3 is an exploded plan cross-sectional view of a main part showing a junction site of a complex street lamp according to the present invention,
Figure 4 is a schematic front cross-sectional view showing an oak drying apparatus used in the present invention,
Figure 5 is an enlarged view of the main part of Figure 4,
6 is a schematic side cross-sectional view showing an oak drying apparatus used in the present invention,
7 is an enlarged view of the main part of FIG. 6,
Figure 8 is a schematic longitudinal cross-sectional view showing the operating state of the oak drying apparatus used in the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in more detail with reference to the accompanying drawings. However, it should be understood that the present invention may be implemented in a number of different forms, and is not limited to the described embodiments.

The domestic oak drying apparatus used in the present invention will be described with reference to FIGS. 4 to 8 as follows. The domestic oak drying apparatus used in the present invention is a drying chamber 10, a bogie 20 provided in the drying chamber 10, and the bogie 20 installed in the bogie 20 to heat and dry the wood (W). A drying unit 30 to be used, a vacuum pump 40 connected to the drying chamber 10, and a vacuum pressing unit 50 installed in the drying chamber 10 to pressurize the wood loaded on the bogie 20 ), and an elastic support part 60 installed inside the drying chamber 10 to elastically support the vacuum pressing part 50, and an elastic support part 60 connected to the drying part 30 to cool the wood to room temperature. It includes a room temperature cooling unit (70).

The drying chamber 10 has a door 11 that can be opened and closed on the front side, a rail 12 is installed on the inner bottom surface, and a square through hole 13 is formed on the top surface. A vacuum is formed by sealing it through the door 11 while providing a space, and the bogie 20 can be moved in and out through the rail 12. Here, the timber (W) refers to a timber having a thickness of 100 mm or more obtained by cutting oak or thin oak timber with a timber.

The through hole 13 allows the vacuum pressing part 50 to pass through the upper surface of the drying chamber 10 and be installed so as to be movable vertically.

The bogie 20 is provided on the upper surface of the rail 12 and is loaded with a timber made of oak timber which is cut on the upper surface corresponding to the through hole 13, and the drying chamber 10 along the rail 12 It is a well-known thing that can be inserted into and out of.

The drying unit 30 is installed on the wood (W) to the top of the bogie 20, and is provided in a plate shape between the wood (W) and the wood (W), and serves to dry the wood (W). Do it.

Such a drying unit 30 is interposed horizontally between the wood (W) and the wood (W), a plurality of heating plates 31 provided in the shape of a hollow plate, and each connected to the heating plate 31 A hot water supply pipe 32 for supplying hot water to the heating plate 31, a hot water discharge pipe 33 respectively connected to the heating plate 31 to discharge hot water from the heating plate 31, the hot water supply pipe 32, and A hot water tank 34 connected to the hot water discharge pipe 33 and storing hot water therein, a heater 35 installed in the hot water tank 34 to heat the water stored in the hot water tank 34, and the hot water It is installed on the pipeline of the supply pipe 32 and includes a hot water pump 36 for circulating hot water.

The heating plate 31 serves to heat and dry the wood (W) by being heated by the hot water while the inside is hollow and filled with hot water. The heating plate 31 may be made of a metal such as aluminum having good heat conduction.

The hot water supply pipe 32 serves to provide a conduit through which the hot water heated by the heater 35 in the hot water tank 34 flows into the heating plate 31. The hot water discharge pipe 33 serves to provide a pipe through which the hot water used from the heating plate 31 to the hot water tank 34 is discharged.

The hot water tank 34 is installed outside the drying chamber 10 and serves to provide a place where hot water is stored, and the heater 35 is an electric heater, and the water stored in the hot water tank 34 It serves to heat the heat to a predetermined temperature. The hot water pump 36 is to circulate hot water from the hot water tank 34 through the hot water supply pipe 32 and from the heating plate 31 through the hot water discharge pipe 33 to the hot water tank 34. .

The vacuum pump 40 is installed outside the drying chamber 10 and sucks the air inside the drying chamber 10 through an air suction pipe 41 connected in communication with the drying chamber 10. It serves to form a vacuum by discharging it to the outside.

The vacuum pump 40 as described above makes the inside of the drying chamber 10 in a vacuum state, so that the vacuum pressurizing unit 50 descends due to a pressure difference between the inside and the outside of the drying chamber 10 It also serves to provide a pressing force to pressurize the upper surface.

The vacuum pressing part 50 is provided on the upper surface of the drying chamber 10 to cover the through hole 13 and formed of an elastic rubber material, and an upper surface of the elastic cover 51 A sealing fixing member 52 which is mounted on the upper surface of the drying chamber 10 along the periphery to seally fix the elastic cover 51, and the lower surface of the elastic cover 51 into the interior of the drying chamber 10 It includes a pressing plate 53 attached to the upper surface and disposed to correspond to the upper surface of the wood, and a plurality of pressing members 54 attached at intervals to the lower surface of the pressing plate 53 so as to correspond to the upper surface of the wood. .

When the drying chamber 10 is closed, the vacuum pressing unit 50 increases the expansion and contraction cover 51 by the discharge of internal air through the vacuum pump 40 while the pressing plate 53 and the pressing member 54 serves to pressurize from the upper surface of the wood W to the lower direction.

As the vacuum level of the drying chamber 10 by the vacuum pump 40 increases, the pressing force on the wood W increases, and conversely, the vacuum pressure of the drying chamber 10 increases. When is lowered, the pressing force on the wood (W) is reduced. That is, it is possible to adjust the pressing force of the wood (W) by the control of the vacuum degree by the vacuum pump (40).

The expansion/contraction cover 51 serves to support the vertical movement of the pressing plate 53 while being expanded and contracted up and down according to the vacuum degree of the drying chamber 10 while covering and sealing the through hole 13. The sealing fixing member 52 serves to seal the outer end of the elastic cover 51 to the upper surface of the drying chamber 10 around the through hole 13.

The pressing plate 53 serves to pressurize the upper surface of the wood W with its own weight while being moved downward by the vacuum suction force, and provides a place where a plurality of the pressing members 54 are installed at regular intervals, and , The pressing member 54 serves to pressurize the upper surface of the wood W at regular intervals while providing a place where the elastic support part 60 is installed.

The elastic support part 60 is installed in a plurality of the inside of the drying chamber 10, the both ends of each of the pressing member 54 so that the pressing member 54 moved downward can be elastically restored upward. It plays a role of supporting elastically.

The elastic support portion 60 is fitted in an upward direction at both ends of the pressing member 54 to support the pressing member 54, and each of the supporting members 61 A sliding rod 62 with an upper end attached to the center of the lower surface and vertically provided, and a first fitting with one side attached to the inner surface of the drying chamber 10 so that the central portion of the sliding rod 62 is slidably fitted A member 63 and a second fitting member having a lower end portion of the sliding rod 62 slidably fitted under the first fitting member 63 and one side attached to the inner surface of the drying chamber 10 (64), a locking protrusion 65 formed to protrude around the outer circumferential surface of the sliding rod 62 under the first fitting member 63, and the lower end while the upper end is caught on the lower surface of the locking protrusion 65 It includes an elastic spring (66) fitted to the sliding rod (62) so as to be caught on the upper surface of the second fitting member (64).

The support member 61 serves to support and support the lower portion of the pressing member 54, and the sliding rod 62 is inserted into the first fitting member 63 and the second fitting member 64. It serves to pressurize the elastic spring 66 or release the pressurization while moving up and down according to the vertical movement of the pressing member 54.

The first fitting member 63 allows the sliding rod 62 to be mounted on the inner wall of the drying chamber 10 in a vertically movable state, and the second fitting member 64 includes the first Like the fitting member 63, the sliding rod 62 serves to support and support the lower end of the elastic spring 66 while allowing the sliding rod 62 to be mounted on the inner wall of the drying chamber 10 in a vertically movable state.

The locking protrusion 65 is to allow the upper end of the elastic spring 66 to be caught and supported, and the elastic spring 66 has its lower end supported on the upper surface of the second fitting member 64. As the sliding rod 62 moves up and down, it is pressed by the locking projection 65 to generate an elastic restoring force.

The room temperature cooling unit 70 is connected to the drying unit 30 and serves to cool the wood to room temperature by supplying room temperature water to the heating plate.

The room temperature cooling unit 70 is connected to a pipe line of the hot water supply pipe 32 to supply room temperature cold water to the heating plate 31, and the cold water supply pipe 71 and the hot water discharge pipe 33 are connected to the pipe line. A cold water discharge pipe 72 for discharging cold water from the heating plate 31, the cold water supply pipe 71 and the cold water discharge pipe 72 are connected, and a cold water tank 73 in which cold water at room temperature is stored, and the cold water A cooling fan 74 installed on the conduit of the discharge pipe 72 and cooling water flowing into the cold water tank 73 through the cold water discharge pipe 72 with a fan, and on the conduit of the cold water supply pipe 71 It is installed and includes a cold water pump 75 for circulating cold water.

The room temperature cooling unit 70 is injected into the heating plate 31 through the hot water supply pipe 32 through the cold water supply pipe 71 through the cold water supply pipe 71 by the operation of the cold water pump 75 , By circulating from the heating plate 31 to the cold water tank 73 through the cold water discharge pipe 72 through the hot water discharge pipe 33, the wood W is cooled by cooling the heating plate 31 at room temperature. To cool down. The cooling fan 74 serves to cool the water discharged through the cold water discharge pipe 72 in a heated state by being circulated to the heating plate 31 with cold air through a fan.

The hot water supply pipe 32 and the hot water discharge pipe 33, an on-off valve V1 installed in the pipeline, and the cold water supply pipe 71 and the cold water discharge pipe 72, an on-off valve V2 installed in the pipeline from hot water to cold water. It is to make it more stable to switch the circulation of water or to switch the circulation of water from cold water to hot water.

Hereinafter, a method for manufacturing a complex street lamp according to the present invention will be described with reference to the drying apparatus shown in the above drawings. As shown in FIGS. 1 to 3, the method of manufacturing a domestic oak complex street lamp according to the present invention is a method of manufacturing a complex street lamp using a domestic oak drying device, and a preparation step of preparing a green wooden frame by cutting an oak tree (S10) and, a heating plate installation step (S20) of forming a laminated timber by stacking the wooden timber and a heating plate on the bogie, and a drying chamber sealing step (S30) of injecting the bogie into the drying chamber and sealing the drying chamber (S30). ), a vacuum forming step (S40) of forming a vacuum inside the drying chamber, a vacuum pressing step (S50) of pressing the laminated wood with the pressing plate by forming the vacuum, and hot water is circulated to the heating plate The drying step (S60) of drying the timber timber to form a dried timber, and a pressing pressure adjusting step (S70) of adjusting the pressing force by the pressing plate inside the drying chamber during drying of the timber timber, and the room temperature. A room temperature cooling step (S80) of circulating room temperature water to the heating plate through a cooling unit to cool the dried timber, and a step of high heat treatment of timber (S90) in which the dried timber is put into a wood high heat treatment device and treated with high heat, and two Processing and bonding the dried timber to form a wooden lamp post (S100), and processing the outer surface of the wooden lamp post into a cylindrical shape to complete the street lamp post (S110).

The step of preparing the timber timber (S10) refers to a step of preparing a timber timber by collecting thinning or felled oak and cutting the collected oak into timber.

The heating plate installation step (S20) refers to a step of forming a laminated wood by alternately stacking a plurality of the green timber and a heating plate on the upper surface of the bogie. The heating plate is hollow inside and heated while the hot water is circulated to heat and dry the greenwood (see FIG. 8).

The drying chamber sealing step (S30) refers to a step of injecting the bogie loaded with the laminated wood into the drying chamber and closing the door to seal the drying chamber. This step is to seal the inside of the drying chamber so that a vacuum can be formed inside the drying chamber.

The vacuum forming step (S40) refers to a step of forming a degree of vacuum in the drying chamber by actuating the vacuum pump to discharge the air inside the drying chamber to the outside through the air suction pipe. Here, the vacuum inside the drying chamber serves to discharge the water vapor discharged as the wooden timber is dried to the outside, and also serves to form a pressing force while the pressure plate is moved downward.

In the vacuum pressurization step (S50), as a vacuum is formed in the drying chamber by the vacuum pump, the elastic cover is extended downward and the pressure plate is moved downward by the discharge of air into the drying chamber. It refers to the step of pressing the upper surface of the laminated wood by the pressing plate. In this way, as the degree of vacuum inside the drying chamber increases, the pressing force of the laminated timber by the pressure plate increases, so that it is possible to stably dry in a state in which bending or distortion of the wooden timber laminated on the laminated timber is prevented.

The drying step (S60) refers to a step of circulating hot water through the heating plate while a vacuum is maintained in the drying chamber to heat and dry the timber timber in the laminated timber to form a dried timber. That is, the green timber is quickly dried in a state where it is heated by the heating plate in a vacuum pressurized state by the pressurizing plate to prevent distortion, and is formed into a dried timber.

In the pressing pressure adjusting step (S70), while drying the wooden timber, the vacuum level inside the drying chamber by the vacuum pump is lowered for several seconds, so that the pressing plate is moved upward by the elastic support part, and the pressing force of the laminated timber is Refers to the step of intermittently lowering for several seconds. In this step, the pressure of the laminated wood by the pressure plate is intermittently lowered for several seconds by adjusting the degree of vacuum into the drying chamber by the vacuum pump. As the pressing force between the and the heating plate is lowered, the water vapor discharged from the wooden timber is smoothly discharged to the outside, so that the wooden timber is evenly and stably dried.

In the room temperature cooling step (S80), after drying of the laminated wood is completed, cooling water at room temperature is circulated to the heating plate through the room temperature cooling unit while a vacuum is maintained inside the drying chamber to cool the dried timber to room temperature. Say the steps. This step is to cool the dried square material in a high temperature state to a state in which splitting or deformation is prevented through the heating plate through which coolant at room temperature is circulated while pressing the platen with the pressurizing plate so that it can be quickly discharged from the drying chamber.

The high heat treatment step (S90) refers to a step of removing the dried wood material from the drying chamber and then putting it into a wood high heat treatment device and performing high heat treatment at a temperature of 180 degrees Celsius to 250 degrees Celsius. In this step, the dried square material is treated with high heat to remove the stress remaining therein while increasing antiseptic properties. The removal of the residual stress inside the dried square material plays a role of stabilizing by further preventing the splitting or deformation, etc. after being manufactured as a street light main.

In the step of forming a wooden stump (S100), a semicircular groove is formed in a longitudinal direction along the center of one side of the dried timber, and two processed trees with the grooves are processed to form a circular through hole therein. It refers to the step of forming a wooden stump by bonding them to each other (see FIGS. 2 and 3). The circular through-hole serves to provide a place where an electric wire supplying electricity to the street light head is interposed.

In the timber stump forming step (S100), the dried timber may be a single timber or a combined timber in which several timbers are bonded and collected. Here, the laminated timber has the advantage of using a small-diameter oak tree having a relatively thin thickness.

In the wood stump forming step (S100), it is preferable that the two processed woods are formed by processing the teeth-shaped engagement jaws so that they are mutually engaged with the inner side, which is the area to be bonded to each other. It is intended to be able to more completely prevent bursting of the bonded portion after forming the wooden stump by bonding the processed wood to each other.

As shown in FIG. 3, the engaging jaws are formed in a pair on the bonding portion of the processed wood, and one of the pair of engaging jaws is formed to protrude, and the other engaging jaws are recessed. By being formed, when the two processed woods are bonded and bonded, their adhesion and bonding strength are remarkably excellent.

The outer surface processing step (S110) refers to a step of forming a street lamp post by processing the outer surface of the wooden lamp post into a cylindrical shape (see FIG. 2). The outer surface of the wooden lamppost is processed into cylinders of various diameters so that the aesthetic feeling is revealed and the shape of a tree is formed, and at the same time, the metal fixing tube at the bottom can be inserted.

Although a preferred embodiment of the present invention has been described above, the present invention can use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Therefore, the above description does not limit the scope of the present invention determined by the limits of the following claims.

Meanwhile, although specific embodiments have been described in the detailed description of the present invention, it will be apparent to those of ordinary skill in the art that various modifications can be made without departing from the scope of the present invention.

10: drying chamber
11: door 12: rail
13: through hole
20: Balance
30: drying part
31: heating plate 32: hot water supply pipe
33: hot water discharge pipe 34: hot water tank
35: heater 36: hot water pump
40: vacuum pump
41: air intake pipe
50: vacuum pressurization unit
51: telescopic cover 52: airtight fixing material
53: pressure plate 54: pressure member
60: elastic support
61: support member 62: sliding rod
63: first fitting member 64: second fitting member
65: locking jaw 66: elastic spring
70: room temperature cooling unit
71: cold water supply pipe 72: cold water discharge pipe
73: cold water tank 74: cooling fan
75: cold water pump
W: wood

Claims (3)

A drying chamber 10 having a door 11 open and closing on the front side, a rail 12 installed on an inner lower surface thereof, and having a square through hole 13 formed on an upper surface thereof; A bogie 20 that is provided on the upper surface of the rail 12 and is removable in and out of the drying chamber 10 along the rail 12; A drying unit 30 for drying the wood by heating the heating plate 31 to the top of the bogie 20 by sandwiching the heating plate 31 between the wood and the wood; A vacuum pump (40) installed outside the drying chamber (10) and connected to an air suction pipe (41) to communicate with the drying chamber (10); The elastic cover 51 provided on the upper surface of the drying chamber 10 to cover the through hole 13 and formed of an elastic rubber material, and the elastic cover 51 inside the drying chamber 10 A vacuum pressing unit 50 including a pressing plate 53 having an upper surface attached to the lower surface and disposed to correspond to the upper surface of the wood; A plurality of elastic support portions installed inside the drying chamber 10 and elastically supporting both ends of each of the pressing members 54 so that the pressing members 54 moved downward can be elastically restored upwards (60) and; A room temperature cooling unit 70 connected to the drying unit 30 and supplying room temperature water to the heating plate to cool the wood to room temperature; In the method of manufacturing a complex street deungju using a domestic oak drying device comprising;
A raw timber lumber preparation step (S10) of collecting thinned or felled oak trees, and preparing a raw lumber lumber by cutting the collected oak wood into a lumber;
A heating plate installation step (S20) of alternately stacking the wooden timber and the heating plate on the upper surface of the bogie to form a laminated timber;
A drying chamber sealing step (S30) of injecting the bogie loaded with the laminated wood into the drying chamber and closing the door to seal the drying chamber;
A vacuum forming step (S40) of operating the vacuum pump to discharge the air inside the drying chamber to the outside through the air suction pipe to form a degree of vacuum in the drying chamber;
As a vacuum is formed in the drying chamber by the vacuum pump, the elastic cover is extended downward by the discharge of air into the drying chamber, and the pressing plate is moved downward, so that the pressing plate touches the upper surface of the laminated wood. A vacuum pressurizing step of pressurizing (S50);
A drying step (S60) of circulating hot water through the heating plate while the vacuum is maintained inside the drying chamber to heat and dry the timber timber in the laminated timber to form a dried timber;
A room temperature cooling step (S80) of circulating coolant at room temperature to the heating plate through the room temperature cooling unit after drying of the laminated wood is completed, while a vacuum is maintained inside the drying chamber, to cool the dried timber to room temperature;
Wood forming a processed tree by processing a semicircular groove in the longitudinal direction along the center of one side of the dried timber, and forming a wooden stump by bonding the two processed trees with the grooves to form a circular hole inside Deungju formation step (S100) and;
An outer surface processing step (S110) of processing the outer surface of the wooden lamppost into a cylindrical shape to complete the lamppost;
Complex street-deungju manufacturing method using a domestic oak, characterized in that it comprises.
The method of claim 1,
After the drying step (S60), the vacuum level in the drying chamber by the vacuum pump is lowered for several seconds for several seconds while drying the wooden timber, so that the pressure plate is moved upward by the elastic support, and the stacking A pressing pressure adjusting step (S70) of intermittently lowering the pressing force of the wood for several seconds;
Next to the room temperature cooling step (S80), the dried timber is removed from the drying chamber and then put into a wood high heat treatment device, and the timber material high heat treatment step (S90 );
Complex street-deungju manufacturing method using a domestic oak, characterized in that it further comprises.
The method of claim 1,
In the wood stump forming step (S100),
The dried timber is a single timber or a combined timber in which several timbers are bonded to each other,
The two processed woods are formed by processing a toothed engaging jaw so as to engage with each other on the inner surface, which is a portion to be bonded to each other,
The engaging jaws are formed in a pair on the bonding portion of the processed wood,
One of the pair of interlocking jaws is formed to protrude, and the other interlocking jaw is formed to be recessed.

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