JPS5849203A - Veneer lathe - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention relates to a veneer lace that cuts a wide thin veneer veneer using a cutting blade that spans the entire length of the raw wood while holding and rotating the left and right end faces of the raw wood, and particularly relates to the commercial value of plywood products. In addition to making it possible to increase the yield of high-quality veneers that are used on the front and back sides of plywood, which affects the quality of the wood, it also provides a veneer lace that is ideal for cutting weak logs and low-grade logs with cracks.

Recently, plywood manufacturing factories have begun to use low-quality raw wood logs due to the deterioration of the raw wood situation, or because they are trying to maintain manufacturing costs by reducing the cost of raw wood, which accounts for the majority of plywood manufacturing costs.

On the other hand, in order to inevitably improve the yield of raw materials and increase work efficiency, there is a demand for cutting low-quality logs into high-quality veneers at high speed and down to a small diameter using veneer lace. is also getting stronger.

For this reason, recently, in order to address this problem, raw wood logs with driving rollers with multiple blades on the outer periphery have been developed.
Emphasis is being placed on research and development of veneer lace that is pressed together to supply rotational driving force from the outer circumference of the log.

However, such periphery-driven veneer lace is prone to scratches and cracks due to the periphery of the log.
When the chain part is squeezed by the pressure bar, wood chips accumulate on the top of the bar, and this sometimes passes through the pressure bar, damaging the veneer veneer surface or making the pressing force of the pressure bar uneven. There was a risk that the quality of the veneer veneer would deteriorate. For example, recent veneer laces that make frequent use of rotating rolls with protrusions, as shown in Figure 1, are now on the market and have achieved some success in efficient cutting of veneer veneers, but on the other hand, the above-mentioned problems continue to occur. ing.

That is, a fishing table 1 equipped with a cutting blade 2 and a guide member 4 having a single-plate guide surface 3 are fixedly installed on the back of the cutting blade 2, and a pressure bar body 5 placed above the fishing table 1 is installed. This is a structural Novenya lace equipped with a pre-7 shear 6 that presses the vicinity of the cutting edge of the cutting tool of the log 11, and a serrated rotating body 8 that pierces the outer peripheral surface of the log 11 and drives the log rotationally. The serrated rotating body 8 has sharp protrusions 9 on its outer peripheral surface, and
A plurality of blades are mounted at regular intervals in the axial direction on a rotating shaft 10 installed parallel to the cutting edge of the blade 2. On the other hand, the pressure bar 6 is connected to the raw wood 11 between the sawtooth rotating bodies 8.
is arranged so as to pressurize the outer circumferential surface of the In such a recent device, the log 11 is rotated in the direction of the arrow A, while the planer stand 1 and the pressure par body 5 are integrally moved by a feed screw (not shown) at a predetermined rate for each rotation of the log. The veneer veneer advances toward the log by the thickness of the veneer, and a veneer veneer of a predetermined thickness is cut out using the cutter 2 and the pressure bar 6.

This cut veneer 7 is pierced by the piercing body 9 of the serrated rotary body 8, and the raw wood 11 is pierced by the rotational drive of the rotary body 8.
is rotated, the veneer 7 is cut, and the veneer 9 is stabbed by the veneer 9 while conveying the veneer to the rear. In this type of veneer lace, the serrated rotating body 8 contacts the log 11 at the top of the cutting blade 2 and rotates the log, so as the log 11 becomes thinner as the cutting progresses, the log The curvature of the outer periphery of the saw-toothed rotary body 8 becomes large, and the serrated rotating body 8 cannot sufficiently penetrate into the raw wood 11, making it difficult to cut the veneer smoothly. Therefore, as a remedy for this, in order to make the rotating body 8 sufficiently penetrate the log even if the log 11 becomes thinner, the piercing body 9 should be set quite deep from the beginning of cutting the log, that is, the serrated rotor 8 should be strongly inserted into the log 11. It was necessary to pressurize. Therefore, the raw wood may be bent due to the powerful piercing force of the rotary body, and the scars of the piercing body 9 on the raw wood may be sharp.

The cut veneer 7 remains quickly and does not disappear, and furthermore, the cut veneer 7 is transported while being stuck by the piercing bodies 9 of the serrated rotary body 8, so that the cut veneer 7 remains stuck to the veneer 7 in the raw wood state with the piercing bodies 9 stuck therein. This progresses, and the veneer 7 is transported rearward with the piercing body 9 piercing the surface of the veneer 7. As a result, the veneer 7 has a large number of puncture wounds that are quite deep from its surface and remain as large defects, and these puncture wounds develop into numerous cracks and tears, which have a serious negative impact on the quality of the veneer. It was. In particular, when cutting and transporting veneers with extremely low strength cut from brittle punky logs or thin veneers of less than 1 mm thick, many cracks occur due to the above-mentioned reasons, resulting in a continuous succession of high-quality veneers. Cutting and carrying out was severely impaired, making it impossible to use it for the front and back veneers, which determine the commercial value of plywood products, and also resulting in lower yields. Furthermore, a sharp circular saw-shaped rotating body constantly rotates at high speed in front of the cutting edge of the veneer lace (corresponding to the height of the worker), and it is impossible to hide the chain due to the function of the veneer lace. The situation is extremely dangerous 24/7. Furthermore, the serrated rotating body is subject to severe wear and tear, and during normal operation, approximately
The function decreases drastically after about 10 days, and each time it is necessary to replace it with a new one, the labor of replacing it and the running cost of the serrated rotating body as a consumable item are enormous. The present invention was made with the purpose of improving the above-mentioned defects, and its main purpose is to provide a veneer lace that can be safely and inexpensively cut veneer in a wide range of materials, from brittle logs to hardwoods, with low maintenance costs.

In the present invention, in an effort to solve the above-mentioned problems, various cutting machines and literatures and materials related to wood cutting that have been published in the present name have been thoroughly reviewed. As a result, there may be some deformation, but when cutting a veneer as a veneer lace, a so-called pressure member that applies pressure near the cutting edge of the cutting tool is an essential element. There are two types of roller bars (driven type and driven type), and they recognized that both had conflicting interests and disadvantages, and that they were insufficient to solve the problem. Specifically, the fixed pressure nose bar can be easily installed at the predetermined position at the cutting edge according to the cutting conditions, but on the other hand, the large pressurized area that spans the entire length of the log reduces the cutting resistance when cutting veneer. This part bears most of the load and becomes a large load resistance, resulting in damage to the cut wood, etc.
This brings about many obstacles. On the other hand, the cutting resistance of the rotating roller bar is very small, and by driving the roller, the cutting resistance can be significantly reduced. However, the fate of a roller bar with a circular cross section is that an unforeseen situation arises at the position where pressure is applied to the log, which is determined at a certain ratio according to the thickness of the cut veneer.

When cutting a veneer using a veneer lace, there is a position approximately 2096 mm away from the tip of the cutting tool in the opposite direction to the direction of rotation of the raw wood. -6 perpendicular distance to the tip) is considered best, and the larger the diameter of the roller bar, the more impossible it becomes to satisfy the above condition.

In other words, as the outer periphery of the large-diameter rotating roller bar approaches the predetermined pressurizing position of the raw wood, the lower outer periphery of the roller bar tends to come into contact with the back surface (rake surface) of the cutting blade, and the predetermined pressure increases. Before reaching the position, it comes into contact with the back side of the cutter, making it impossible to apply pressure to the specified position.

The above conditions become more severe as the thickness of the cut veneer becomes thinner, and as part of a breakthrough, it is necessary to reduce the diameter of the roller bar. Naturally, the thinner the roller bar (diameter 16
(A simple roller bar is used in the United States) The rotation speed is extremely high, increasing the load on the bearings, requiring special lubrication methods, and causing various troubles. Furthermore, if there is a slip between the outer circumference of the log and the roller bar, the rotational drive device for the roller bar will also be large, which is disadvantageous.

Based on the above-mentioned events, it is common knowledge that roller bars are not suitable for cutting thin veneers of around 12 mm in diameter in Japan, even if they are suitable for cutting rough veneers of around 25 mm in diameter in the United States. In fact, no roller bars are used in Japanese plywood factories. Compared to a fixed pressure nose bar, cutting resistance is significantly reduced, and it also has the potential to eliminate blade jams at the cutting edge, making it an advantage that is difficult to abandon. So, as a step,
We repeated the test by alternating the fixed pressure nose bar and the rotating roller bar, and the results showed that the fixed pressure nose bar and the rotating roller bar were arranged in half for the entire width of the cut veneer. Due to the difference in the pressure effect of the roller bar, the thickness was over and under in various places, and there was no way it could have been a veneer product. The above is an example, and the present invention focuses on the advantages of both of the above, and as a compensation for repeated research and development, the fixed pressure 7
- It has been completed by drawing out the advantages of both the roller bar and the rotary roller bar, while also compensating for the disadvantages of each.

In order to achieve this objective, the present invention has a cannon turret equipped with a cutting blade that can move forward and backward toward the raw wood, and a pressure bar that is mounted parallel to the cutting blade so that it can move forward and backward as one unit with the cannon turret. In a known veneer race equipped with a mounted planer bar body, a roller with a flat outer circumferential surface is equipped with a pressure buffer mechanism and is driven to rotate at a circumferential speed higher than the circumferential speed of the log to be cut. This model is characterized by the fact that it is equipped with a 100mm diaphragm on the plane's main body.

An embodiment will be described below with reference to the drawings.

FIG. 2 is a side sectional view showing one embodiment of the present invention, and FIG. 3 is a front view. In the figure, a tree 11 is rotated in the direction of arrow A with its left and right end surfaces held between the two sides.

Further, the gun turret 1 and the pressure bar body 5 are assembled vertically and are integrally held at their left and right end surfaces, and are configured to rapidly approach or separate from the raw wood 11 using, for example, a feed screw (not shown). When cutting a veneer, for one revolution of the log 11, the cutting veneer advances toward the log by a predetermined thickness of the cut veneer. 1 in Fig. 2 is a gun turret with a roughly triangular cross section, and the blade 2 is a blade holder 2'.
It is tightly held on the side of the gun turret 1 facing the log 11 with the cutting edge facing upward. A base 4 made of a material such as stainless steel is attached to the surface of the gun turret 1 that comes into contact with the blade 2.

An arcuate or inclined veneer guide surface 3 is formed at the top of the die 4, which serves as a passage for the veneer P to be produced by cutting the raw wood 11. Reference numeral 4' denotes an auxiliary base which is disposed adjacent to the lower side of the base 4 in the direction of carrying out the veneer, and similarly to the base 4, has a veneer guide surface 3' formed on its top. Note that this auxiliary cap may be constructed integrally with the cap 4, but this part suffers a lot of wear and tear, so it is more advantageous in terms of maintenance and the like to arrange it separately from the cap 4. Further, the guide surface 3.3' at the top of the mouthpiece 4.4' is formed into an arc shape similar to the outer circumferential circle of the roller disc 8, which will be described later, with the starting point near a position slightly recessed from the cutting edge of the cutter 2, or It is formed as an inclined surface or the like that gradually approaches the lower outer circumferential surface of the vertical center line of the roller disk.

Furthermore, the cap 4.4' is constructed as a single piece that spans the entire width of the gun turret 1 (in the length direction of the log 11), or it can be made of multiple split types or the middle part of the cap 4.4' in the width direction of the gun turret can be omitted as appropriate. and arrange them as multiple pieces. In another embodiment, a guide roller or the like is arranged on the guide surface of the die to increase the smoothness of conveyance of the veneer. Note that when cutting a veneer from relatively high-quality logs, there is no need to consider the top of the nozzle as a veneer guide surface, and a simple straight line from the vicinity of the tip of the blade to the back slope that becomes the veneer conveyance path of the gun turret 1 is required. It may also be configured on a slope. On the other hand, a plane bar body 5 is mounted above the plane stand 1, and as mentioned above, together with the gun stand 1,
Its left and right end surfaces are integrally clamped so that it can move forward and backward relative to the log 11. And pressure bar body
The side facing the raw wood 5 is an inclined surface 5#, and this inclined surface 5'' has a small inclined pressure bar 6 as shown in FIG. 3 that can press the outer peripheral surface of the raw wood 11. A plurality of slanted pressure bars 6 are arranged.The entire inclined pressure bar 6 or a plurality of the pressure bars 6 may be constructed in one piece.
The corresponding portions of the gaps between the divided fixed pressure bars 6 shown in FIG. 3 may be appropriately cut out and used.

A height adjustment mechanism 6' (partially not shown) is arranged at the midpoint of the inclined surface 5'' of the pressure bar body. An adjustment screw 6'' is inserted into this adjustment mechanism 6'.
Its lower tip is connected to a fixed pressure bar 6, and by adjusting this portion, the pressure position of the lower tip of the pressure bar 6 on the log 11 can be raised or lowered to increase or decrease the pressure applied. The pressure applied to the raw wood by the fixed pressure bar 6 prevents the tip from cracking when cutting the veneer veneer, correctly regulates the thickness of the veneer, and effectively prepares the peeled surface of the veneer. The protruding part made of a cut veneer formed from the tip of the blade of the knife 2 and the heat is called the blade mouth.
.

The pressure bar body 5 has a cutter 2 near the cutter mouth.
A rotating shaft 10 is mounted parallel to the rotating shaft 10, and a plurality of thin disc-shaped roller discs 8 with flat outer peripheral surfaces are mounted on the rotating shaft 10 in a row in a skewer shape. As shown in FIG. 3, the arrangement of the roller discs 8 is arranged between the fixed pressure bar 6 dividedly arranged, or between the fixed pressure bar notches when constructed as one piece. However, in addition to being arranged evenly over the entire width of the pressure bar body 5 (in the length direction of the raw wood 11), the pressure bar body 5 may also be arranged with its middle part or both ends omitted as appropriate. Furthermore, the scoring knives (which determine the width of the cut veneer) are sometimes arranged closely together.This rotating shaft 10 is usually configured as a spline shaft as shown in FIG. (not shown)
For example, the pressure bar body 5 is rotated in the direction of arrow B by a drive mechanism composed of a variable speed electric motor (not shown) fixedly installed on the upper part of the pressure bar body 5, a tension device, etc. FIG. 4 is a side sectional view of the vicinity of the cutting edge and the pressure bar body, and is a detailed view of the pressure buffer mechanism of the roller disk, which is the main part of the present invention. For example, the bearings 21 that support the rotating shaft 10 are held at multiple locations in the axial direction by needle bearings, etc., and the multiple bearings 21 are held and connected together by connecting portions 21' arranged parallel to the axial direction. ing. Furthermore, the connecting portion 21'
23 is attached to the rear part of the connecting part 21' and is attached to the rear (the rear This is a connecting shaft extending toward the right (in FIG. 4), and is usually placed near the left and right end sides of the connecting portion 21', which is generally arranged parallel to the axis.

The connecting shaft 23 is attached to the bracket 2 via the bush 28.
The mounting bracket 27' is held in a predetermined position by a bracket 27', which is attached to the rotating shaft 10 through a suitable plate on the internal mounting surface 12 of the inner pocket of the Blenyer bar body 5, which is configured in a tubular type. The axis of the pressurized shock absorbing mechanism is accurately installed in a direction perpendicular to the axis.

Next, regarding the connecting shaft 23, its end portion is inserted into and connected to the coupling 31 via a key 23K or by omitting the key and using a set bolt.
The other side of the piston rod 1 is connected to the tip of the piston rod 32 protruding from the fluid cylinder 33 by a set bolt or the like.

On the other hand, the fluid cylinder 33 is placed on a bracket 34, and the back mounting surface 1 of the pressure bar body 5 is prepared in a plane exactly perpendicular to the axis of the connecting shaft 23.
3. It is fixed and installed correctly. The fluid cylinder 32 arranged in series with the connecting shaft 23 constitutes a pressurized shock absorbing mechanism.

In FIG. 4, the pressure buffer mechanism is shown in a state in which it has moved forward toward the log 11 side (in the figure, it has moved in the left direction of arrow F). When moving backward from this state to the right, pressure fluid is introduced from the left side of the cylinder head 35 in the illustration, and the piston 36 moves in the direction of arrow E.

Accordingly, the nine-coupling ring 31 connected to the piston rod 32 and the connecting shaft 23 also move to the right in the figure. In this case, the outer peripheral surface of the connecting shaft 23 moves while sliding between the bushes 28.

Next is the fluid pressure supplied to the fluid cylinder 33.
Generally, hydraulic equipment is often used. Optionally, pressurized fluid is introduced into the cylinder 33 via a solenoid valve or the like by operating a push button switch, and the cylinder 33 is pressurized in the directions of arrows E to F as appropriate.

Further, the fluid cylinder of the pressurizing and buffering mechanism may be arranged only in one central portion of the roller disk, or may be arranged separately on the left and right sides.

In FIG. 4, the front part 51 of the pressure bar body 5
14 is a mounting bolt of the front surface part 51 of the pressure harboard, and is detachably configured with a substantially triangular side cross section, and is adapted to cover the bearing 21, the connecting part 21', etc. on the log cutting side. It is a hole.

In the above configuration, the embodiments and effects of the present invention will be described in detail. The plurality of roller disks 8 have flat outer peripheral surfaces and are driven at an outer peripheral speed faster than the rotational peripheral speed of the log 11, and are pressurized and buffered. The mechanism 301 is always in contact with the log 11 with an appropriate pressing force.

Therefore, the pressing force of the roller disc 8 on the raw wood in a substantially horizontal direction or one horizontal direction and the rotational driving force of the roller disc in the tangential direction of the raw wood, which is faster than the outer circumferential speed of the raw wood, work in a superimposed manner, and the resultant force force (acting force that presses the raw wood 11 diagonally downward, and as a result, prevents the raw wood from deflecting in the opposite direction when cutting the veneer with a cutting blade, which inevitably occurs when cutting the raw wood with veneer lace) This is extremely effective in preventing so-called bending, in which the axial center of the log, which is rotated by the spindle while holding the left and right end faces of the log, separates from the cutter 2 and buckles.

Furthermore, when cutting a veneer for veneer lace, the blade tends to bite into the wood, and the wood comes closer to the pressure bar, increasing the frictional resistance of the fixed pressure bar.In the present invention, however, the fixed pressure At a position slightly above the bar 6's position in the rotational direction of the log, the resistance of the fixed pressure bar described in 1 increases due to the rotation of the wheel pressurizing the outer circumferential surface of the log with a plurality of roller discs 8. Preventing it from happening. Next, Figure 5 shows (Al-
(It will look like D+. In other words, in the cutting state of cracks R such as water cracks and dry cracks existing in the raw wood 11, the starting end M of the crack escapes from the cutter 2 due to cutting resistance and escapes to the crack R. I end up.

Furthermore, the N portion cannot withstand the sudden instantaneous cutting load and escapes away from the outer circumference of the log. This phenomenon becomes more pronounced as the sharpness of the knife 2 decreases. As a result, the core parts N and M gradually develop into a snout-like shape and are left behind (the outer periphery of the log other than these parts is gradually stripped away with one knife and becomes smaller in diameter). It collides with the cutting edge and reaches the protruding frame of the log, as shown in Figure fD1. On the other hand, the roller disc 8 according to the present invention has
The outer circumferential surface of the log, which is slightly below the upper pressing point of the fixed pressure bar 6 that presses the outer circumferential surface of the log, is applied with an appropriate adding force to the outer circumferential surface of the log, while maintaining a buffering effect and at a speed faster than the outer circumferential speed of the log 11. Since it is driven to rotate at the outer circumferential speed, the roller disc works to force the starting ends N and M of the crack into the cutting edge, and the cutting of the veneer by the cutting tool is inevitably completed. Naturally, the breakage of the log shown in FIG. 5 IDI is also impossible.

Note that these phenomena are caused by the fixed pressure bar 6 mentioned above.
This is due to a pushing action that packs the log into the space of the cracked part of the log at a position above the pressing point in the rotational direction and at a speed faster than the outer peripheral speed of the log, for example, by a rotating body with a piercing body. In this case, the above-mentioned circumferential speed difference cannot be obtained because it pierces the log, and therefore the pushing action does not work (
, is ino.

Next, in the case of the latest veneer lace that uses a piercing-type drive rotating body, the effect cannot be achieved at all unless the piercing body completely pierces each log. Unless a pressure-receiving rotating body mechanism or the like is installed on the opposite side of the body from which the log is sandwiched, to receive and stop the piercing pressure,
It was not possible to break free from the negative effects of conventional veneer lace. Of course, in the case of extremely sharp objects such as needle-like objects, even if the pressure applied to the object can be reduced, it may not be suitable for transferring rotational force to the raw wood, or there may be conflicts of interest such as wear and tear on the object. It was a difficult task.

As mentioned above, the present invention was able to demonstrate its effectiveness particularly in the case of cracked logs. Furthermore, since the strong pressing force caused by the piercing pressure described above is not required, even if the log 11 becomes smaller in diameter as cutting progresses, the log does not get used to being bent by the pressing force, and the left and right end surfaces of the log are eventually gripped. Now you can reliably cut with the spindle moving backwards. In addition, when cutting raw wood (generally called castella wood) that has a part of the raw wood that is weathered and has an extremely weak part, the veneer lace plate of the stabbing rotor is used to cut into a wide thin veneer. At the time, the weathered soft parts are broken into pieces or crushed into pieces, which first cling to the cutting edge and block the cutting edge, interrupting subsequent veneer cutting, or during the conveyance process of the cut veneer. In this process, disadvantages arise, such as foreign matter causing problems in subsequent steps. However, in the present invention, the weathered and soft parts are cut out in the same way as ordinary veneer veneers, and this is because the veneer veneer itself is not punctured. If necessary, the roller disk 8 can be completely separated from the outer circumferential surface of the log 11 by the pressure buffer mechanism 30, and veneer cutting can be performed in exactly the same way as conventional veneer lace. This method is used when cutting extremely high-quality logs, and conventional veneer is It was no different from veneer veneer cut from lace. Note that it is convenient to use the pressurized buffer mechanism 30 using fluid pressure, such as when rapid separation is required when separating the roller disk from the raw wood.

Further, the outer peripheral speed of the roller disk is generally 2 to 2
It is preferable to rotate the log at a speed within the range of 096 and faster than the outer circumferential speed of the log. In addition, when the pressurizing force of the roller disk is increased by the above-mentioned pressurizing/relaxing/new mechanism, the speed may be set to increase over a wide range of 1 to 25% of the circumferential speed of the log, depending on the various properties of the log.

Furthermore, through repeated various tests on the base metal, the ratio of the total width in the axial direction of the raw wood of the fixed pressure bar 6 that presses the outer peripheral surface of the raw wood to the total width of the roller disc 8 according to the present invention is approximately 10:1. It has been found that this setting is the best, and that there is no practical problem up to the ratio of about 7:3, and in reality, a range of 10:05 to 3 is good. Moreover, if radial slits or the like are formed in the thin disk-shaped roller disk 8, the above-mentioned effects will be slightly increased.

After all, the main part is composed of a completely simple thin disk-shaped roller disk, and even if the outer circumferential surface of the disk-shaped disk is considerably worn, as long as the wear condition is average, the above-mentioned By increasing the rotational drive speed of the roller disk, each of the above effects can be easily achieved without reducing its functions, which is extremely economical. As mentioned above, as another embodiment of the present invention, it is possible to replace the fluid cylinder with a synthetic mechanism such as a spring or a cam with a simple design change. The effects of the present invention can be summarized as follows.

1. Good quality veneers without puncture marks can be obtained at a high yield.

2. The yield of veneers from low-grade logs with various defects such as cracks and rot is increased.

3. There is no clogging of the blade edge of the veneer lace, improving the operating rate.

4. There are no piercing rotating bodies, etc. (This ensures safe work.

5. There are no replacement parts such as the piercing rotor. Therefore, there is no need to replace parts, making it maintenance-free.

6. The roller disc can continue to operate even if it is considerably worn, and the degree of wear is minimal, so running costs can be significantly reduced.

7. If desired, the roller disc can be retracted and used as a conventional veneer lace. Therefore, low equipment costs are expected as multi-purpose veneer lace can be used for two purposes.

As explained above, the veneer lace according to the present invention can easily solve the much-needed labor and resource savings, thereby greatly contributing to the industry.

[Brief Description of the Drawings] Fig. 1 is a side view of a conventional veneer lace, Fig. 2 is a side sectional view of an embodiment of the present invention, Fig. 3 is a partial front view, and Fig. 4 is a side view of a conventional veneer lace.
The figure is a detailed side sectional view of the pressure buffer mechanism, and FIG. 5 is a diagram showing how a conventional race is used to cut a cracked log. 1・・・・・・・・・・・・・・・・・・・・・・Battery 2
・Book・・・・・・・・・・・・・・・・1・Knife 2 fists・
・・１・・・Fist・・・・・・Blade presser 4 Chō・Calligraphy・・
・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・Rotation axis 1
1・・・・・・・・・・・・・・・・・・Log 3
0・・・・・・・・・・・・Pressure buffer mechanism 32@--
-...1 Piston Rondo 33... Urn e... Fluid cylinder 34... Skewer... 111
@Bracket) 1ζ Upper 2 (C) Figure 5 (D)

Claims (1)

[Scope of Claims] 1. A reed having a flat outer circumferential surface that is provided with a blade for cutting a veneer from raw wood and a plurality of fixed plennya bars, the plurality of fixed plennya bars and a reed having a flat outer circumferential surface that is driven at an outer circumferential speed faster than the outer circumferential speed of the raw wood. Arrange disc-shaped roller discs alternately,
A veneer lace characterized by comprising a drive mechanism that rotates the roller disk, and a pressure buffer mechanism that brings the roller disk into contact with raw wood. 2 The drive mechanism that rotates the roller disc can be changed in speed 1
The veneer lace according to claim 1, characterized in that it has this structure. 3. The veneer lace according to claim 1 or 2, wherein the pressure buffer mechanism for bringing the roller disk into contact with the raw wood is constituted by a fluid unlinder. 4. Any one of claims 1 to 3, wherein the roller disk drive mechanism is configured such that the outer circumferential speed of the roller disk can be increased within a range of 2 to 20% from the log outer circumferential speed. or the veneer lace described in item 1. 5. The veneer lace according to any one of claims 1 to 4, wherein a portion of the roller disk is appropriately omitted. 6. Any one of claims 1 to 5, characterized in that the ratio of the contact area between the plurality of fixed pressure bars and the raw wood of the roller disk is approximately in the range of 10:05 to 30. The veneer lace described in item 1. ( (blank below)