KR20090098261A - Apparatus and method for manufacturing rectangular-lumber block using disused wood and the rectangular-lumber block manufactured by this - Google Patents

Abstract

An apparatus and a method for manufacturing rectangular-lumber block using disused wood are provided to dry disused wood within a short time in order to secure an intensity of a finished product, thereby improving productivity. An apparatus for manufacturing rectangular-lumber block using disused wood comprises: a smashing unit(10) for smashing disused wood; a drier(20) for drying the smashed wood pieces; a resin mixer(30) for mixing the dried wood pieces with resin; and a molding unit(40) for molding the wood pieces into rectangular-lumber blocks. The molding unit consists of a lower molding frame and an upper molding frame.

Description

Apparatus and method for manufacturing rectangular-lumber block using disused wood and the rectangular-lumber block manufactured by this}

The present invention relates to a lumber block using waste wood, and more particularly, using a waste wood can produce a product having a load value proportional to the strength that can be used as a pallet support bar and can shorten the manufacturing time The present invention relates to a used horn block manufacturing apparatus and method, and a horn block produced by the same.

In general, the lumber block is widely used for interior and exterior finishing materials, such as buildings and pallets of pallets. However, there are many problems in terms of cost when these wood blocks are to be processed from solid wood. Therefore, the production of lumber is usually used for the processing of solid wood, and these are generally discarded when used once, and it is common to process wood as waste when discarding it after use as household goods or building interior and exterior. Currently, the amount of waste wood produced in Korea is about 40% of annual wood usage, and a large amount of waste wood is generated.

Therefore, one of the various ways in which these waste woods can be used is a method of reproducing these waste woods into lumber blocks.

For example, the pallet consists of a base plate and a plate on the top of the base plate, and each plate allows the fork of the forklift to be inserted away from the ground by a certain height, and when moving things, between the base plate and the base plate or between the base plate and the base plate. A fork, such as a forklift, is inserted between the pallet and the loaded object to move simultaneously with the forklift.

Recently, pallets have been manufactured using waste wood.

The block material block manufacturing apparatus by a prior art usually consists of processes, such as cutting, drying, resin mixing, and shaping | molding.

In the manufacture of the lumber block, conventionally, the production of the lumber block is easy because the sawdust, stalks, etc., but takes a long time and the load capacity of the product is significantly lower than the solid wood block.

Therefore, the lumber block having the waste wood has a low load capacity and thus is not useful for use as a load bearing device.

In addition, since the conventional processes are not continuous processes, there are many loss times such as waiting time. Because the waste wood pieces are put into a square mold having a shape of each material and pressurized, pressurization should be waited until completion of pressurization, and thus, continuous production is impossible and productivity is reduced.

The present invention is to solve the above problems, it is possible to manufacture a lumber block of strength that can be used as a base of the pallet from the waste wood as a material, the operation for maintaining the moisture content, strength, etc. of the waste wood to the reusable degree It is an object of the present invention to provide a device and method for manufacturing a block of lumber using waste wood that can shorten the time to the shortest time and minimize the equipment area, and a block of horn produced by the same.

The block material manufacturing apparatus using the waste wood according to the present invention for achieving the object as described above, the grinding unit for pulverizing the waste wood; A drying unit for drying the waste wood pieces crushed by the grinding unit; A resin mixing part for mixing the resin with the waste wood pieces dried by the drying part; And a molding part for molding the waste wood pieces mixed with the resin by the resin mixing part into a square material, wherein the molding part is provided with a lower molding mold having a space that is open toward an upper portion thereof, and installed to be liftable with respect to the lower molding mold. And it is characterized by consisting of an upper molding frame for molding each material by applying heat and pressure to the waste wood pieces contained in the lower mold.

In addition, the present invention is characterized in that the waste wood pieces mixed with the resin are compressed and bonded by a high frequency method.

According to the device and method for producing a block of lumber using waste wood according to the present invention, and the block of lumber produced by the present invention, the moisture of the waste wood can be dried within the shortest time to ensure the strength of the finished product, and the time for drying and pressurization is shortened. The productivity can be improved.

<Example 1>

As shown in Figure 1, the block material manufacturing apparatus using the waste wood according to the present embodiment, the grinding unit 10 for crushing the waste wood, the drying unit 20 for drying the waste wood pieces crushed by the crushing unit 10, It consists of a resin mixing portion 30 for applying a resin to the waste wood piece dried by the drying unit 20, and a molding portion 40 for molding the waste wood piece to which the resin is applied by the resin mixing portion 30.

The crushing unit 10 is a product that is commonly used, and the waste wood 1 of various sizes are pulverized into waste wood pieces 1a (sawdust, finely pulverized waste wood) such as 25 mesh.

The drying unit 20 is to dry the waste wood pieces 1a pulverized by the crushing unit 10 and is installed along the longitudinal direction in the drying chamber 21 and the drying chamber 21 to transfer the waste wood pieces 1a. It consists of a heat source which forms the drying conveyor 22 and the inside of the drying chamber 21 to a dry atmosphere.

The heat source may be an electric heater, an infrared heater, and the like, and the heater and the infrared heater 23 may be applied together or only one of them may be selectively applied. Hot air drying method is dried from the surface of the waste wood piece (1a), according to the infrared irradiation method is dried from the inside of the waste wood piece (1a) to shorten the drying time, improve the thermal efficiency and prevent deformation of the waste wood piece (1a) do.

As shown in FIG. 1, the drying unit 20 may include only a single drying conveyor 22, but as shown in FIG. 2, a plurality of drying conveyors 22 may be stacked in multiple stages to increase drying efficiency in a limited area. It may be.

The drying unit 20 of such a configuration adjusts the water content of the waste wood piece 1a to 8% or less.

In addition to the conveyor method, the drying unit 20 may also include a rotary method sweeping a dry apparatus method. That is, the wood piece 1a is supplied to the inside of the rotating drum 23 rotated by a drive motor, etc., and the waste wood piece 1a is dried by maintaining the inside of the rotating drum 24 by a heat source at a drying temperature.

The resin mixing unit 30 is a resin mixing tank 31 having a space formed therein, and a resin mixing screw installed in the resin mixing tank 31 and transferring the waste wood pieces 1a dried by the drying unit 20 ( 32) and a resin injector 33 for injecting a resin (for example, urea resin, melamine resin, phenol resin, urethane resin, and isocyanate resin) to the waste wood piece 1a conveyed by the resin mixing screw 32. . The resin may be mixed with 10 to 20% of the total weight of the waste wood piece (1a).

The resin mixing tank 31 is disposed to be inclined downward toward the outlet end to facilitate the transfer of the waste wood piece 1a.

The resin mixing screw 32 is inclined at the same angle as the resin mixing tank 31 in the resin mixing tank 31 and is rotated in place by receiving a driving force from a driving source not shown, and is introduced into the resin mixing tank 31. The resin sprayed by the resin injector 33 is mixed with the waste wood piece 1a while transferring the waste wood piece 1a.

The molding part 40 may be formed of a lower mold 41 and an upper mold 42. The lower mold 41 is open at the top to fill the waste wood piece 1a mixed with a resin to a predetermined thickness, and the upper mold 42 is lowered to the lower mold 41 by a pressure cylinder (not shown). The lowering pressurizes the waste wood pieces 1a filled in the lower mold 41, and heat is applied from a heat source (not shown) so that the waste wood pieces 1a are joined.

In some cases, the block 3 may have a hole 3a penetrating up and down. For this purpose, a plurality of cylindrical cores 41a are formed in the lower mold 41 and a core (3) is formed in the upper mold 42. The core hole 42a into which the 41a is inserted is formed.

The angle shaping plate 2 thus made is cut by a cutter to produce a plurality of angle blocks 3.

The shaping part 40 may be joined by a high frequency method in addition to the method of joining by heater heat. Heater heating transfers heat from the outside to the inside, but high frequency transfers heat from the inside to the outside, so workability and efficiency are good.

As shown in FIG. 3A, the waste wood piece 1a may be inserted into the high frequency shaping mold 43 to form a block of lumber having a desired thickness by a single high frequency method. It is also possible to shorten the joining time by manufacturing each of the raw material 2A and 2B having a thickness of 40T and joining them again at a high frequency. When the two materials 2A and 2B are bonded at a high frequency, the materials are joined by joining only two joining surfaces due to the characteristics of the high-order plate that starts joining from the inside of the material, so that the joining time can be shortened. In other words, although only the manufacturing of the angular material having a desired thickness using two angular material 2A and 2B is described, it is also possible to manufacture a finished product by high-frequency bonding three or more angular material.

The method for producing a lumber block using waste wood according to the present embodiment is as follows.

After the waste wood 1 having various sizes is put into the crushing unit 10 and the crushing unit 10 is operated, the waste wood 1 is crushed by the crushing unit 10 to produce a small sized waste wood piece 1a.

The waste wood piece 1a is supplied to the drying unit 20 and dried at a moisture content of less than 8%, and then put into the resin mixing tank 31 of the resin mixing unit 30, for example, a resin spray machine 33 in the form of a spray gun. The resin sprayed in is mixed with the waste wood pieces 1 conveyed by the resin mixing screw 32.

The waste wood piece 1a in which the resin is mixed is molded into the shape of a square by the molding part 40.

The molding unit 40 has been described using a heater heating and compression type, a high frequency and a compression type as an example, and the square member molded plate 2 is manufactured by each method. The horn shaped block 2 is manufactured by the lumber block 3 through a cutting process.

Heat pressure temperature and pressure are not limited to specific values because they may vary depending on the condition of the material and the strength of the finished product.

<Example 2>

As shown in FIG. 4, the block material manufacturing apparatus using the waste wood according to the present embodiment is characterized in that it is a continuous system that can be manufactured without using a molding die.

To this end, the alignment part 50 and the roller-type pressing part 60 which arrange the waste wood piece 1a in the magnitude | size of predetermined thickness and width are comprised.

As shown in FIG. 5, the alignment unit 50 continuously transfers the waste wood piece 1a (mixed resin) through the alignment conveyor 51 and aligns the thickness and width with the lumber block 3. .

Alignment conveyor 51 is made of a width (preferably larger than the horn) to match the width of the horn.

The waste wood piece 1a coated with the resin in the resin mixing part 30 is introduced into the alignment conveyor 51 and at the same time the thickness (the thickness is greater than the thickness of the finished product because the thickness is before compression) and the width (both sides of the left and right sides are not in a straight line). Since it will be irregular, it will be larger than the width of the finished product in consideration of future cutting.

The thickness adjuster 52 is similar to the left and right widths of the alignment conveyor 51 and is installed at a predetermined height (thickness) away from the surface of the alignment conveyor 51. The thickness adjusting unit 52 is fixedly installed to a frame for supporting the alignment conveyor 51.

The thickness adjusting unit 52 is formed of a flat plate to remove the waste wood piece 1a of a predetermined height or more from the sorting conveyor 51 among the waste wood pieces 1a transported on the alignment conveyor 51 to remove the waste wood pieces 1a. Adjust the thickness.

To this end, the thickness adjusting unit 52 further includes a recovery passage 53 for guiding the waste wood piece 1a removed above the thickness adjusting unit 52 to another place. The recovery path 53 may have any shape capable of removing the waste wood piece 1a removed above the thickness adjusting plate 52 from the alignment conveyor 51. For example, the recovery path 53 may include the waste wood piece 1a. It may be formed to be inclined so as to guide the left and right edges from the center of the thickness adjuster 52.

Since the waste wood pieces 1a recovered by the recovery passage 53 are not wastes, they can be returned to the inlet side of the alignment conveyor 51. The recovery path 53 may be formed to be inclined so that the waste wood pieces 1a sorted upward through the thickness adjusting unit 52 are recovered without passing through the recovery path 53 naturally.

The thickness adjusting unit 52 may be formed to be inclined downward toward both left and right sides so as to sort the waste wood pieces 1a without the recovery passage 53.

The width adjuster 54 is erected on both sides in the left and right width directions of the alignment conveyor 51 in a plate shape, and removes a part of the left and right width directions in accordance with the width of each material of the waste wood pieces 1a introduced to the alignment conveyor 51. The width adjusting unit 54 may be formed entirely from the inlet side to the outlet side of the alignment conveyor 51, or may be formed only up to a certain distance from the inlet side.

A recovery path (not shown) is provided to return the waste wood piece 1a removed from the alignment conveyor 51 by the width adjuster 54 to the alignment conveyor 51.

Pressing portion 60 is a primary horn shaping plate (1b) (referring to the state that the waste wood pieces (1a) are aligned with the lumber by the alignment portion 50) aligned to the alignment portion 50 to the lumber It is for processing, it can be divided into the primary pressing portion 61, the secondary pressing portion 62 and the third pressing portion 63, for example, by pressing the material of about 30cm in height to measure 8.5cm thick Manufacture.

Since the primary horn shaped plate 1b is only aligned and not pressurized at all, the primary pressing part 61 has a multi-stage roller press method.

The primary pressing portion 61 is a plurality of pressure rollers 61a and pressure rollers 61a spaced apart from each other by a predetermined distance along the conveying direction of the primary horn shaped plate 1b. Consists of a plurality of pressing roller blocks (61b) (shown as three in the figure) for pressing again the primary horn shaped plate (1b) passed through.

The first to third pressing rollers 61a sequentially press the primary prismatic shaping plate 1b to be transferred along the conveying conveyor 61c by using two sets arranged vertically. That is, as the first pressing roller moves from the first pressing roller to the third pressing roller, the interval through which the primary horn shaped plate 1b passes becomes smaller.

The first to third pressing roller blocks 61b are compressed while transporting the primary horn shaped plate 1b by the rotational force of one or more blocks (shown by three in the figure) disposed up and down, respectively.

Although the primary press portion 61 compresses the primary horn shaped plate 1b by physical force, the heat and pressure are simultaneously applied by adding a heating wire to the press roller 61a and the press roller block 61b. You can also grant.

The secondary press part 62 is in the form of a continuous roller press by a pressurized conveyor, and compresses the primary horn shaped plate 1b with heat and pressure in the upper and lower parts. The temperature at this time is about 150-170 degreeC.

The primary press portion 61 of the press portion 60 is a pretreatment process for compressing the primary horn shaped plate 1b to the thickness of the product, and the secondary press portion 62 is used for compressing and bonding the horn product. It can be said. Therefore, the pressing force and the heat of the large force must be provided in the secondary pressing part 62. For this purpose, the pressing conveyor 62a disposed up and down is provided with a pressing roller 62b so as to give a large pressing force in all sections. .

The secondary press unit 62 may supply heat by an electric heating wire or the like, or supply heat of an infrared heater.

The tertiary pressing portion 63 further compresses the secondary pressurized primary shell molding plate 1b to a desired thickness of the lumber, and is of the same continuous roller press type as the secondary pressing portion 62.

The tertiary pressing portion 63 is composed of a pressing conveyor 63a arranged up and down and a plurality of pressing rollers 63b for pressing the pressing conveyor 63a. However, since the primary horn shaped plate 1b is almost compressed into the product state through the secondary press part 62, in the third press part 63, the size of the press roller 63b is the secondary press part 62. It is formed smaller than the pressure roller 62b.

Although not shown in the drawing, the primary horn shaped plate 1b may be pushed to the left and right when pressed by the pressing unit 60, so that the primary horn shaped plate 1b is disposed on both sides in the width direction of the pressing unit 60. Support plates may be further provided to prevent them from being pushed.

The method for producing a lumber block using waste wood according to the present embodiment is as follows.

The pulverization-drying-resin mixing process is the same as that of Example 1, and only the new process by this Example is demonstrated concretely.

1. Alignment.

The waste wood piece 1a in which the resin is mixed in the resin mixing part 30 is supplied to the alignment conveyor 51. The waste wood piece 1a supplied to the alignment conveyor 51 is supplied and transported in a stacked state larger than the width and thickness of the lumber which is a finished product.

The waste wood piece (1a) is transported along the alignment conveyor (51) and then the width is adjusted while passing through the width adjuster 54, where those falling out of the width adjuster (54) are aligned conveyor 51 through the recovery passage It can be recovered to the input stage of.

The waste wood pieces 1a stacked at a position higher than the thickness bar 52 among the stacked wood bar pieces 1a are classified above the thickness bar 52 and then aligned along the recovery path 53. It can be recovered to the input stage of.

The material in which the waste wood pieces 1a are stacked by the width adjusting unit 54 and the thickness adjusting unit 52 is mounted on the alignment conveyor 51 in a state in which the width and thickness of the material supplied to the pressing unit 60 are adjusted. Transferred.

2. Pressurized.

Pressurization is divided into primary pressurization, secondary pressurization and tertiary pressurization.

The primary pressurization is to compress only by the physical force, and the primary horn shaped plate 1b conveyed by the conveying conveyor 61c sequentially passes through the primary press roller 61a of the primary press section 61. It is gradually compressed by a large force, and then passes through the primary pressure roller block 61b to be compressed by a larger force. Compression force by the primary pressure roller (61a) and the primary pressure roller block (61b) may vary depending on the thickness of the product and so is not limited to specific values. That is, since no heat is applied in the primary press part 61, adhesion by resin is not performed.

The secondary press part 62 compresses and adheres the primary horn shaped plate 1b by heat and pressure. On the second press, it is compressed to the thickness of the finished shell.

The tertiary pressing portion 63 compresses and stabilizes the primary horn shaped plate 1b compressed by the secondary pressing portion 62.

Through the above process, the horn shaped plate 2 can be continuously supplied, and the left and right widths of the horn shaped plate 2 passed through the third pressing section 63 are cut at the outlet end side of the third pressing section 63. A cutting portion for cutting to a desired length may be further provided.

As shown in FIG. 6, the left and right cutting parts 70 cut the left and right sides of the secondary horn shaped plate 1c (referring to the compressed material) supplied from the tertiary pressurizing unit 63. It consists of a pair of cutters 71 spaced apart at regular intervals along the width direction to cut both sides of the).

The pair of cutters 71 cuts the left and right sides of the secondary horn shaped plate 1c conveyed by the feed roller 72 (which can be arranged up and down to support the secondary horn shaped plate 1c). To finish the left and right sides of the secondary shell member molded plate (1c) in a straight line.

As shown in FIG. 7, the length cutting part 80 is a slider which reciprocates along a pair of first guide rails 81 and first guide rails 81 formed along a conveying direction of the secondary horn shaped plate 1c. The second guide rail 83 and the second guide rail 83 which are connected to the 82 and the slider 82 and arranged in a direction (length cutting direction) across the first guide rail 81 are installed to be movable. And a cutter 84 for cutting the secondary corner forming plate 1c in the longitudinal direction.

The slider 82 and the cutter 84 each move back and forth by driving means (motor or the like), which are not shown.

The cutter 84 initially waits after the left and right cutting parts 70, and when the cutting position of the secondary horn forming plate 1c reaches the cutter 84, the slider 82 moves along the first guide rail 81. While moving, the cutter 84 moves along the second guide rail 83 to cut the secondary horn shaped plate 1c to a desired length.

The chuck 85 may be applied so that the secondary horn shaped plate 1c does not shake when being cut by the cutter 84. The chuck 85 is installed on the slider 82 vertically (to support the secondary horn shaped plate 1c at the upper and lower portions), and at least one of them is elevated to fix the secondary horn shaped plate 1c.

Alternatively, the secondary square shaping plate 1c may be cut while the cutter 84 moves up and down. Of course, the cutter 84 can also reciprocate for a certain period here.

The lumber block 3 manufactured by such a method can be used for various uses, such as a pallet of a pallet.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram of a lumber block manufacturing apparatus using waste wood pieces according to a first embodiment of the present invention.

Figure 2a and Figure 2b is an illustration of a drying unit applied to the lumber block manufacturing apparatus using the waste wood piece according to Example 1 of the present invention, respectively.

Figure 3a and Figure 3b is another illustration of the molded part applied to the lumber block manufacturing apparatus using the waste wood piece according to the first embodiment of the present invention.

Figure 4 is a block diagram of a device for producing a block of lumber using waste wood pieces according to a second embodiment of the present invention.

Figure 5 is a block diagram of the alignment portion applied to the lumber block manufacturing apparatus using the waste wood piece according to a second embodiment of the present invention.

Figure 6 is a block diagram of the left and right cutting portion applied to the lumber block manufacturing apparatus using the waste wood piece according to the second embodiment of the present invention.

7 is a block diagram of a length-cutting portion applied to a lumber block manufacturing apparatus using a waste wood piece according to a second embodiment of the present invention.

<Description of Signs for Main Parts of Drawings>

10: grinding part, 20: drying part

30: resin mixing part, 40: molding part

50: alignment unit, 60: cutting unit

Claims (11)

A grinding unit 10 for pulverizing waste wood; A drying unit 20 for drying the waste wood pieces pulverized by the crushing unit; A resin mixing part 30 for mixing the resin with the waste wood pieces dried by the drying part; It includes a molding unit for molding the waste wood pieces mixed with the resin by the resin mixing unit in a square material, The molding part is a molding frame in which the waste wood is contained, respectively, disposed at the upper and lower portions of the molding frame, and pressurized the waste wood pieces contained in the molding frame, and the waste wood, characterized in that the joining by high frequency The lumber block manufacturing apparatus which used. The method according to claim 1, wherein the high-frequency molding unit, the primary high-frequency molding unit for molding the waste wood piece of a predetermined thickness, the material formed by the primary high-frequency molding unit bonded to each other to form a shaped member 2 Block material manufacturing apparatus using waste wood, characterized in that it is divided into a second high-frequency molding part. A grinding unit 10 for pulverizing waste wood; A drying unit 20 for drying the waste wood pieces pulverized by the crushing unit; A resin mixing part 30 for mixing the resin with the waste wood pieces dried by the drying part; An alignment unit 50 for aligning the waste wood pieces mixed with the resin by a predetermined width and thickness by the resin mixing unit; And, Device for producing a block of wood using waste wood, characterized in that it comprises a pressing unit 60 for continuously pressing the primary horn shaped plate (1b) continuously supplied by the alignment unit. The method of claim 3, wherein the alignment unit, the alignment conveyor 51 for conveying the waste wood pieces continuously supplied in a predetermined thickness and width by the resin mixing unit, the left and right sides of the alignment conveyor respectively along the longitudinal direction of the alignment conveyor A width adjuster 54 which is installed and guides the waste wood pieces supplied to the sorting conveyor to be gathered within a predetermined width is formed in a plate shape, spaced apart from the surface of the sorting conveyor by a certain height, and conveyed through the sorting conveyor. Block material manufacturing apparatus using a waste wood, characterized in that consisting of a thickness control bar 53 for sorting the waste wood pieces from the alignment conveyor. The method according to claim 4, wherein the pressing unit is arranged in a line along the conveying direction of the primary horn shaped plate (1b) continuously supplied from the alignment unit from the primary to sequentially compressing the primary horn shaped plate (1b) Block material manufacturing apparatus using waste wood, characterized in that consisting of the third pressing portion (61, 62, 63). The method according to claim 1 or 3, The drying unit is a closed drying chamber, one or more stages are installed in the drying chamber, characterized in that consisting of a transfer means for transferring the waste wood pieces crushed by the grinding unit and a heat source for drying the waste wood pieces conveyed by the transfer means by heat. Device for manufacturing lumber block using waste wood. The method according to claim 1 or 3, The drying unit is a block material manufacturing device using a waste wood, characterized in that it comprises a rotating drum for drying while transporting the waste wood pieces introduced into the rotation while driving by a drive motor. Cutting the waste wood to form a waste wood piece; Drying the wood chips cut by the cutting step; Mixing a resin with the waste wood pieces dried by the drying step; Method for producing a block material using a waste wood, characterized in that the step of compression molding the waste wood piece mixed with the resin by the high frequency by the resin mixing step. Cutting the waste wood to form a waste wood piece; Drying the wood chips cut by the cutting step; Mixing a resin with the waste wood pieces dried by the drying step; Supplying the waste wood pieces mixed with the resin by a predetermined width and thickness through the above steps; Method for producing a block material using a waste wood, characterized in that consisting of a pressing unit for pressing and molding the material to be fed through the alignment step. The method of claim 9, wherein in the alignment step, the waste wood pieces are supplied in a predetermined width and thickness on the sorting conveyor rotating in an endless track, the left and right sides of the waste wood pieces conveyed along the sorting conveyor within a predetermined width to adjust the left and right width And sorting the waste wood pieces stacked above a certain height among the waste wood pieces to the outside of the alignment conveyor. A lumber block manufactured using a waste wood piece, characterized in that produced by any one of claims 1, 3, 8, 9.

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