JPH0420570Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is for driving logs of veneer lace, the outer circumferential surface of which is composed of an elastic body, and which presses the outer circumferential surface against the outer circumferential surface of the log and drives it to rotate. The present invention relates to a rotating body, and more specifically, relates to a rotating body for driving logs made of veneer lace, in which a frictional metal body is embedded in the outer peripheral surface made of the elastic body.

[Prior art]

In a rotating body for driving logs of veneer lace, the outer circumferential surface of which is made of an elastic body, the outer circumferential surface is pressed against the outer circumferential surface of the raw log to drive it to rotate, and the outer circumferential surface is made of an elastic body that has a friction metal. As for the buried body, Japanese Patent Application No. 58-36290
No. 162011), an elastic ring made of urethane rubber or the like in which a coiled metal wire is integrally molded with resin is fixed to the contact surface side of the roll corresponding to the rotating body against the raw wood, and There are some that have a high coefficient of friction and are designed to dissipate frictional heat.

[Problem that the invention attempts to solve]

However, with such a configuration, the cost of processing the metal wire into a coil shape is high, and furthermore, with a normal ring-shaped metal wire, only a part of the curve appears on the circumferential surface, which increases the coefficient of friction and reduces frictional heat. There is a limit to the effect of heat dissipation, and if the length of the metal wire appearing on the circumferential surface is increased, it is necessary to process it into a special shape, resulting in higher processing costs.

[Means for solving problems]

In the present invention, instead of the coiled metal wire, a plate-shaped metal body bent in a zigzag shape is used.
The problems of the prior art described above are solved by embedding it in the outer circumferential surface of the rotary body for driving logs, which is made of an elastic body.

[Structure of the invention] The present invention is a rotating body for driving logs of veneer lace, the outer circumferential surface of which is made of an elastic body, and which presses the outer circumferential surface against the outer circumferential surface of the log and drives it to rotate.
A plate-shaped metal body is bent in a zigzag shape so that side edges extending in a direction intersecting the rotational direction of the rotary body are exposed at appropriate intervals on the outer circumferential surface of the rotary body made of an elastic body. This is a rotating body for driving logs made of veneer lace, which is characterized by being buried.

〔Example〕

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the configuration and effects of the present invention will be described in detail based on embodiments of the present invention shown in the accompanying drawings.

In this embodiment, as shown in FIG. 1, a log 1 is rotatably supported by a spindle (not shown).
A tool rest 2 and a support frame 3 are integrally provided, which gradually advance toward.

A blade 4 having a cutting edge parallel to the axis of the spindle and cutting a veneer S from the raw wood 1 is attached to the tool rest 2.

The supporting frame 3 is integrally equipped with a rotary body A for driving logs as shown below at a position slightly higher than the cutting edge of the cutting tool 4 and whose circumferential surface contacts both the log 1 and the veneer S. A large number of them are arranged in parallel at arbitrary intervals.

The rotating body A has a ring-shaped urethane rubber 7 fixed around a fixing ring 6 which is fixed by inserting a key into a key groove on a rotating shaft 5 which is rotationally driven by a motor (not shown). As shown in Fig. 2, a plate-shaped metal body 8 is bent in a zigzag pattern so that U-shapes alternately extend in opposite directions, as shown in Fig. 3. As shown, the rotary body A is buried so that side ends extending in a direction perpendicular to the rotational direction of the body A are exposed at appropriate intervals.

As the material of the metal body, it is preferable to use stainless steel in consideration of the problem of rust.

Moreover, between the urethane rubber 7 and the fixing ring 6 of the metal or plastic body, there is a
As described in Japanese Patent No. 162011, a slip ring is provided, and when a large rotational resistance acts on the rotating body A, the fixing ring 6 and the slip ring are idly rotated to avoid cutting of the metal body 8. Also good.

On the other hand, the cutting edge 4 of the cutter 2 is located between the rotating bodies A.
A pressure bar 9 is arranged to press the log 1 on the slightly upper side. The pressure bar 9 has a holder 10 fixed to the support frame 3.
and a replaceable tip 11 that is attached to the tip of the holder 10 and presses the raw wood.

In the above configuration, the log 1 is rotated by the driving force of the spindle and the rotating body A, and the veneer S is cut by the cutter 2.

In the present invention, as shown in FIG. 3, on the outer peripheral surface of the rotating body A made of an elastic body, side end portions extending in a direction intersecting the rotational direction of the rotating body A are exposed at appropriate intervals. As the plate-shaped metal body 8 is bent in a zigzag shape and buried,
Unlike when a coil or ring is used as the metal body, all of the continuous ends of the metal body 8 are exposed to the outer peripheral surface, which increases the coefficient of friction with the log 1 and also improves the heat dissipation effect of frictional heat. It is possible to increase the

Furthermore, even if a piece of wood gets between the rotating body A and the raw wood 1 due to cracking or rotting of the raw wood during cutting, since the metal body 8 is formed in a zigzag shape as described above, the direction of rotation of the rotary body A cannot be changed. It can be stretched forward and backward without being damaged.

In the above embodiment, the metal body 8 is the rotating body A.
In contrast, although it is provided facing substantially in the radial direction, it may be provided so as to be slightly inclined toward the rotational direction.

Further, the end of the metal body 8 may be provided with fine irregularities as shown in FIG. 4 in order to increase the coefficient of friction with the log 1.

Furthermore, embedding a metal body in an elastic body such as urethane rubber is carried out by, for example, placing the metal body around a circular mold and pouring the raw material for the elastic body such as urethane rubber. If a through hole is formed in the metal body as shown by 9 in the figure, the raw material will flow into the through hole, and the bonding relationship between the elastic body and the metal body will be good.

In the above embodiment, the zigzag shape of the metal body is formed by bending the U-shape in a zigzag shape such that they are alternately connected in opposite directions, but the shape is not limited to this shape. Any material may be used as long as it is bent in a zigzag shape so that when it is embedded in the elastic body of the rotating body, side ends extending in a direction intersecting the rotational direction of the rotating body are exposed at appropriate intervals, For example, as shown in Figure 5,
It may also be one in which V-shapes are bent in a zigzag pattern so that they alternate in opposite directions.

In addition, in the present invention, as mentioned above, the constituent material of the plate-shaped body embedded in the elastic body is a metal body, but if a heat dissipation effect is not desired for this plate-shaped body,
It is also possible to use plastic.

[Effect of idea]

As explained above, in the rotating body for driving logs of veneer lace of the present invention, a plate-shaped metal body bent in a zigzag shape is used instead of the conventional coiled metal wire, so the rotating body All continuous ends of the metal body are exposed on the circumferential surface of the metal body, and as a result, the coefficient of friction with the raw wood can be increased and the heat dissipation effect of frictional heat can be increased.

In addition, in terms of manufacturing costs, it is sufficient to simply bend a plate-shaped metal body in a zigzag shape, resulting in an inexpensive product.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the state of use of one embodiment of the rotating body for driving veneer lace logs of the present invention, and Fig. 2 is a perspective view of a plate-shaped metal body bent in a zigzag shape used in the present invention. , FIG. 3 is a front view of the rotating body for driving the veneer lace raw wood shown in FIG. 1, FIG. 4 is a fragmentary view showing another embodiment of the plate-shaped metal body, and FIG.
The figure is a perspective view showing still another embodiment of the plate-shaped metal body. 1... Log, 4... Cutting edge, S... Single plate, A...
Rotating body for driving veneer lace raw wood, 5...Rotating shaft, 6...Fixing ring, 7...Urethane rubber, 8
...A plate-shaped metal body.

Claims (1)

[Claims for Utility Model Registration] (1) A rotary body for driving logs of veneer lace, the outer circumferential surface of which is made of an elastic body, and which presses the outer circumferential surface against the outer circumferential surface of the log and drives it to rotate, A plate-shaped metal body is bent in a zigzag shape and buried in the outer circumferential surface of the rotating body made of an elastic body so that side edges extending in a direction intersecting the rotational direction of the rotating body are exposed at appropriate intervals. A rotating body for driving veneer lace logs. (2) The rotary body for driving logs of veneer lace according to claim 1, wherein the elastic body is urethane rubber. (3) For driving logs of veneer lace according to claim 1 or 2 of the utility model registration claim, characterized in that the direction intersecting the rotation direction of the rotor is perpendicular to the rotation direction of the rotor. Rotating body.