JPH0699405A - Pressing device for continuous timber - Google Patents

Abstract

PURPOSE:To solidify efficiently and simply a continuous timber by disposing a press plate between a couple of press molds of a device with a support disposed in upright correspondingly to a press mold support on the bottom of a pressing tank into which high temperatrue and high pressure water vapor is fed on a floor face and pressed by means of a plurality of hydraulic cylinders mounted above the pressing tank all together simultaneously. CONSTITUTION:A press mold supporting bed 6 is mounted on the bottom of a pressing tank 1 through a mounting flange 7, and a support 8 for supporting press molds is disposed in upright on a floor face below the mounting flange 7 on a floor face. A press mold 9 on a press supporting bed 6 consists of a bottom force 10, a couple of side molds 11 and a press plate 12. A plurality of hydraulic cylinders 20 are provided in the longitudinal direction above the pressing tank 1, and press seat 25 are mounted integrally at the ends of piston rods 20a of the cylinders. The press plate 12 is pressed by the press seats 25 all together simultaneously. A timber W can be compression molded uniformly by the arrangement, and as it is not necessary to increase the strength of the press plate 12, the cost thereof can be controlled to the low price level.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for pressing a long piece of wood which is used to solidify a long piece of wood.

[0002]

2. Description of the Related Art Generally, soft woods such as cedar, larch, and poplar are used as building materials in some parts, but their fastness is low, so that their use range is limited.

Therefore, in order to expand the range of use of such wood, research has been conducted to improve the solidity of the wood. As a result of intensive research conducted by the applicant, the wood was subjected to high temperature and high pressure steam atmosphere. It was found that the press working with is a very effective means for strengthening wood, and Japanese Patent Application No. 2-
In No. 117979 etc., wood is placed in a high-temperature and high-pressure steam atmosphere to be softened by heat, and then compression-molded and fixed in a high-temperature and high-pressure steam atmosphere to solidify the wood. Proposing a device.

In the above wood processing apparatus, a press die is appropriately placed inside a press tank made of high-strength steel, stainless steel or the like so as to withstand high temperature and high pressure, and the press plate of this press die is hydraulically operated. It is connected to a pressure driving means such as a cylinder, and after setting and loading wood into the press tank with a press mold, high temperature and high pressure steam is supplied into the press tank to heat the wood at high temperature and high pressure. By placing it in a steam atmosphere, the wood is heated and softened by steam, and then a mechanical compressive force is applied to the wood to compression-mold the wood to a predetermined cross-sectional area ratio, and then the wood is cut. It is fixed.

According to the above-mentioned wood processing apparatus, since the wood is heated and softened in the steam atmosphere of high temperature and high pressure in the press working tank to be compression-molded, the inner cavity portion of the wood becomes small, so that the wood is hard, In addition, the wood becomes strong and even bent wood can be straightened, and the wood can be formed into a desired size and shape without performing lumber processing.

[0006]

By the way, in the above apparatus, the press die is fixedly arranged in the press working tank, and
Since the press plate and the pressure drive means, for example, the piston rod of the hydraulic cylinder, are integrated, it is troublesome to set and remove the wood from the press mold, and at the same time, the wood is pressed through the press cylinder to the hydraulic cylinder. Even after compression-molding with, the wood had to be continuously pressed by the hydraulic cylinder via the holding plate until it was fixed, which was a major obstacle to improving work efficiency.

Further, in the above apparatus, a press type holding plate is used.
Since it is pressed by the hydraulic cylinder of the book, if the holding plate becomes long when processing a long piece of wood, the holding plate will bend and it will not be possible to evenly compress the wood, so it is necessary to increase the strength of the holding plate. Therefore, the device cost is inevitably high.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a long wood press working apparatus capable of efficiently and easily making a long wood hard. It is in.

[0009]

In order to achieve the above object, the present invention arranges a press die through a press die pedestal at the bottom of a press working tank to which high-temperature and high-pressure steam is supplied, and at the same time, performs the above-mentioned press working. A hydraulic cylinder that presses the pressing plate of the press mold is provided above the tank, and further, below the pressing tank, a press support column is erected from the floor so as to correspond to the press mold support. In a press working apparatus, the press die is a bottom die placed on a press die pedestal, a pair of side dies opposed to each other on the bottom die with a space adjustable, and arranged between the pair of side dies. A plurality of hydraulic cylinders for pressing the pressing plate of the press die are provided above the pressing tank in the longitudinal direction above the pressing tank, and the presser seat is attached to the piston rod of each hydraulic cylinder. Only, there is provided a stamping device of a long timber which is adapted to compression molding wood by pressing simultaneously the press die of the pressing plate through the respective retainer seat.

Further, a plurality of retaining grooves are formed on the opposing surfaces of the pair of side dies of the press die at a constant pitch in the vertical direction, and the retaining grooves of the side die and the retaining ridges are provided on both sides of the upper surface of the holding plate. A detent mechanism having a stopper pin is provided.

Further, a roller is rotatably attached to the press die, and the press die can be reciprocally moved on a rail installed inside the press working tank through the roller.

Further, a distance collar is interposed between the bottom die of the press die and the wood.

[0013]

According to the apparatus of the present invention, the press-type presser plate and the piston rod of the hydraulic cylinder are individually configured, and the presser seats in which the press-type presser plate is attached to the piston rods by a plurality of hydraulic cylinders are provided. By pressing all at once through the wood, the wood can be uniformly compression-molded.

Further, by providing a detent mechanism having a retaining groove formed in the side die and a stopper pin for retaining on the press plate of the press die, the stopper pin of the detent mechanism automatically engages the side plate. It is possible to prevent the pressing plate from being lifted by being locked by the stop groove, and to reliably fix the compression-molded wood until it is fixed.

Further, since the press die can reciprocate on the two rails installed inside the press processing tank via the rollers, the press die reciprocates on the rails via the rollers to press the press die. You can freely move in and out of the processing tank.

Further, since the distance collar is interposed between the bottom die of the press mold and the wood, the thin wood can be compression-molded and the height dimension of the distance collar can be adjusted. It is possible to perform compression molding in a stepless thickness dimension.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings.

FIG. 1 is a schematic view of a long wood press working apparatus according to the present invention. The present invention apparatus is a press working tank having a cylindrical shape made of high-strength steel or stainless steel so as to withstand high temperature and high pressure. A lid (1a) is attached to the opening of (1) so as to be able to be opened and closed in a sealed manner by an appropriate means, and a vacuum pump (3) is connected to this press tank (1) through a pipe (2), A steam supply device (not shown) is connected through a pipe (4), and the vacuum pump (3) sucks the air in the press tank (1) through the pipe (2) and exhausts the air to press the tank. The inside of (1) is evacuated, and high-temperature and high-pressure steam is supplied into the press-processing tank (1) from the steam supply device through the pipe (4), so that the press-processing tank (1) has a high-temperature and high-pressure steam atmosphere. To be in a state To have.

As shown in FIG. 2, a press die pedestal (6) is arranged in the press tub (1), and the press die pedestal (6) is arranged in the press tub (1). It is attached to the bottom through a mounting flange (7), and a press receiving column (8) is erected on the floor below the mounting flange (7).

A press die (9) is placed on the press die pedestal (6). This press die (9) is a bottom die (10) and a bottom die (10). Composed of a pair of side molds (11) (11) arranged to face each other and a holding plate (12) arranged between the pair of side molds (11) (11).
1) Locking grooves (13) are formed on the opposing surfaces of (11) in the vertical direction at a constant pitch, and detent mechanisms (14) are attached to both upper surfaces of the holding plate (12). The pair of side molds (11) (11) is attached to the bottom mold (10) by inserting the shaft portion (15a) of the tension lever (15) into the long hole (11b) formed in the seat plate (11a). By loosening the tension lever (15), the facing distance can be adjusted by the elongated hole (11a). In addition, a pair of side molds (11)
To adjust the facing interval of (11), screw the pair of side molds (11) and (11) into the screw parts formed by threading in opposite directions on both ends of the adjustment shaft (not shown). , The pair of side molds (11, 11) are moved toward and away from each other by rotating the adjustment shaft. As shown in FIG. 4, the detent mechanism (14) includes a pin case (16) having a notch (16a), a hook groove (13) of the side die (11) and a hook (17a) for hooking. The stopper plate (17) has a stopper plate (17), and the tab (17a) is projected from the notch (16a) in the pin case (16) to pivotally support the stopper pin (17). When (12) moves downward, the stopper pin (17) can be moved by swinging, but when the holding plate (12) moves upward, the tab (17a) of the stopper pin (17) moves. Side groove (11) locking groove (1
The movement is stopped by being locked by 3).

As shown in FIG. 3, the press mold (9) has rollers (18) (18) on a pair of side molds (11) (11), respectively.
This roller (18) (1
2) by supporting two rails (19) (19) arranged in parallel inside the press tank (1) via 8)
It is installed so that it can move back and forth along the rails (19) (19) of the book.

Hydraulic cylinders (20) are attached to a plurality of positions in the longitudinal direction above the press working tank (1), for example, six positions, and the piston rod (20a) of this hydraulic cylinder (20) is pressed. The stuffing box (22) mounted on the ceiling of the tank (1) via the mounting seat (21) is airtightly inserted through the packing (23) and the packing retainer (24) so that the piston rod (20a). Insert the tip end of the piston rod into the press tank (1), and press the seat (2
5) is attached integrally.

Next, the press working of the wood (W) in the apparatus of the present invention constructed as described above will be explained.

First, the wood (W) to be treated is placed between the pair of side molds (11) and (11) on the bottom mold (10) of the press mold (9), and the wood (W) is prevented from deteriorating. The holding plate (12) with the mechanism (14) is placed on the wood (W) set in the press die (9), and the wood (W) is heated and softened by the preheater with high temperature and high pressure steam.

When the wood (W) is heated and softened,
Roller (18) set in press die (9)
Via the rails (19) and (19) arranged inside the press working tank (1) via the (18), and placing the rails at a predetermined position of the press die pedestal (6). The lid (8a) of (1) is closed, and the wood (W) is loaded into the press tank (1). Then, if necessary, if the wood (W) is not sufficiently softened by heating, the press tank (1)
By supplying high-temperature and high-pressure steam from the steam supply device to the inside of the press working tank (1) to create a high-temperature and high-pressure steam atmosphere, the wood (W) is further heated by the high-temperature and high-pressure steam and sufficiently heated. Soften. If necessary, the vacuum pump (3) evacuates the air in the pressing tank (1) to bring the inside of the pressing tank (1) into a vacuum state.

When the wood (W) is sufficiently softened by heating in this manner, the piston rod (20) of each hydraulic cylinder (20) is
The pressing plate (12) mounted on the wood (W) set in the press die (9) by the pressing seat (25) attached to the tip of each piston rod (20a) by extending a).
Are simultaneously pressed from above, whereby the wood (W) is compression-molded to a predetermined cross-sectional area ratio.

When wood (W) is compression-molded by the hydraulic cylinders (20) through the press die (9) to a predetermined cross-sectional area ratio, the piston rods (20) of the hydraulic cylinders (20)
a) is retracted and the respective presser seats (25) attached to the tips of the respective piston rods (20a) are simultaneously raised. At this time, when all the presser seats (25) are raised simultaneously, the presser plate (12) of the press die (9) moves upward together with the presser seats (25) due to the restoring force of returning to the original shape of the wood (W). Although it is about to be lifted, the tab (17a) of the stopper pin (17) of the detent mechanism (14) attached to the presser plate (12) automatically moves when the wood (W) is compressed to a predetermined sectional area ratio. Since the retaining plate (12) of the press die (9) is not lifted up, the wood (W) is maintained in a compression-molded state because the retaining groove (13) of the side die (11) is engaged. .

When the wood (W) is compression-molded as described above, the lid (8a) is opened to open the pressing tank (1), and at the same time, the press die (9) is moved to the rollers (18) (18).
By moving backward along the rails (19) and (19) via the press, the compression-formed wood (W) is carried out to the outside of the press tank (1) together with the press die (9) and compressed in that state. The formed wood (W) is fixed for a predetermined time. When the wood (W) compression-molded in this way is fixed, it is removed from the press die (9) and the processing is finished. When the compression-molded wood (W) is fixed,
Since the restoring force to return to the original shape does not work, the tab (17a) of the stopper pin (17) of the detent mechanism (14) can be easily released from the latch groove (13) of the side mold (20). Then, the wood (W) can be easily removed from the press die (9).

According to the device of the present invention, the detent having the retaining groove (13) formed in the side die (11) and the stopper pin (17) for engaging with the holding plate (12) of the press die (9). Mechanism (1
4) is attached, the presser plate (12) is pressed by each hydraulic cylinder (20) to compress the wood (W) to a predetermined cross-sectional area ratio, and then the stopper of the detent mechanism (14) automatically. It is possible to prevent the pin (17) from being locked by the locking groove (13) of the side plate (11) and lifting the wood (W) of the pressing plate (12) due to the restoring force that tries to return to the original shape. It is possible to securely fix the formed wood (W) until it is fixed. Thus, immediately after the compression molding of the wood (W), the pressure of each hydraulic cylinder (20) is released, and the wood (W) is taken out of the press working tank (1) together with the press die (9) and fixed at an appropriate place. it can.

Further, according to the device of the present invention, the pressing plate (12) of the press die (9) and the piston rod (20a) of each hydraulic cylinder (20) are separated from each other to form the piston rods of the plurality of hydraulic cylinders (20). Since the presser plates (12) of the press die (9) are simultaneously pressed by the respective presser seats (25) attached to the tip of the (20a), the presser plate (12)
The wood (W) can be evenly compression-molded through the press, and the cost can be kept low because it is not necessary to increase the strength of the pressing plate (12).

Further, along a rail (19) (19) arranged inside the press tank (1) via rollers (18) (18) rotatably attached to the press die (9). The press die (9) can be freely moved in and out of the pressing tank (1). For this reason, it becomes easy to set and remove the wood (W) to and from the press die (9), and it is possible to perform processing automatically.

In the above embodiment, the case where the thick wood (W) is compression-molded has been described.
As shown in, it is also possible to perform compression molding of thin wood (W) by interposing a distance collar (26) between the bottom mold (10) of the press mold (9) and the wood (W). is there.

Further, when the distance collar (26) is used, the height dimension of the distance collar (26) is arbitrarily adjusted so that the wood (W) in the above-mentioned embodiment is retained by the hooking groove () of the side mold (11). It is possible to perform stepless compression dimension molding of what could not be compression molded to the stepwise thickness dimension of 13).

[0034]

As described above, according to the present invention, since the detent mechanism having the engaging groove formed in the side die and the stopper pin for engaging is attached to the press plate of the press die, the timber of a predetermined cross-sectional area can be obtained. When compression-molded in comparison, the stopper pin of the detent mechanism is automatically locked in the locking groove of the side plate to prevent lifting of the holding plate, and the compression-molded wood can be securely fixed until it is fixed. it can.

Further, the press type pressing plate and the piston rod of the hydraulic cylinder are separately configured, and the pressing type pressing plates are simultaneously pressed by the respective presser seats attached to the tips of the piston rods of the plurality of hydraulic cylinders. By doing so, the wood can be uniformly compression-molded, and even in the case of long wood, there is no need to increase the strength of the holding plate, so that the cost can be kept low.

Further, since the press die can be reciprocated via the rollers to the two rails installed inside the press tank, the press die is reciprocated on the rails via the rollers to press the tank. Can be freely moved in and out, making it easy to set and remove wood from the press mold,
It is also possible to perform processing automatically.

Further, since the distance collar is interposed between the bottom die of the press mold and the wood, not only the compression molding of thick wood but also the compression molding of thin wood is possible, and the height of the distance collar is high. By adjusting the dimensions, it is possible to perform compression molding into a stepless thickness dimension.

[Brief description of drawings]

FIG. 1 is a schematic view of a long wood pressing apparatus according to the present invention.

FIG. 2 is a longitudinal sectional view of a main part of the device of the present invention.

3 is a longitudinal sectional view of an essential part of a portion different from that of FIG. 2 of the device of the present invention.

FIG. 4 is a detailed view of a detent mechanism.

FIG. 5 is a drawing showing a state in which wood is compressed by the device of the present invention.

FIG. 6 is a drawing showing a state in which thin wood is compressed by the device of the present invention.

[Explanation of symbols]

 W Wood 1 Press processing tank 6 Press receiving tray 7 Mounting flange 8 Press receiving support 9 Press die 10 Bottom die 11 Side die 12 Presser plate 13 Lock groove 14 Detent mechanism 15 Tension lever 16 Pin case 17 Stopper pin 18 Roller 19 Rail 20 Hydraulic cylinder 25 Presser foot 26 Distance collar

Claims (4)

[Claims] 1. A hydraulic pressure for arranging a press die through a press die pedestal at the bottom of a press working tank to which high-temperature and high-pressure steam is supplied, and for pressing a pressing plate of the press mold above the press working tank. In a long wood press working apparatus in which a cylinder is provided and a press receiving column is installed upright from the floor corresponding to the press die receiving stand below the press tank, the press die is placed on the press die receiving stand. A bottom mold to be placed, a pair of side molds arranged on the bottom mold so as to be adjustable in space,
A plurality of hydraulic cylinders, each of which is composed of a holding plate arranged between the pair of side molds, is provided above the pressing tank in the longitudinal direction to press the holding plate of the press mold. A press machine for long wood, characterized in that a presser seat is attached to each of the rods, and the presser presser plates are pressed together by the presser seats to compress the wood. 2. A plurality of retaining grooves are formed on the opposing surfaces of a pair of side dies of the press die at a constant pitch in the vertical direction, and the retaining grooves of the side dies and the retaining ridges are provided on both sides of the upper surface of the holding plate. 2. The long wood pressing apparatus according to claim 1, further comprising a detent mechanism having a stopper pin to be used. 3. A roller is rotatably attached to the press die, and the press die can be reciprocally moved on a rail installed inside the press working tank through the roller. And the press working device of 2 long wood. 4. The apparatus for pressing a long piece of wood according to claim 1, wherein a distance collar is interposed between the bottom die of the press die and the wood.