JP4060945B2 - Veneer veneer insertion method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an insertion method when inserting a veneer into a dehydrator to remove moisture from a veneer veneer before drying (hereinafter referred to as a veneer) obtained by cutting a log. .
[0002]
[Prior art]
When a single plate is inserted into the dehydrator, there are four directions of insertion in both the fiber direction and the fiber orthogonal direction. Conventionally, the insertion direction is not determined based on the physical properties of the veneer, but it is determined randomly or simply by determining the fiber direction or the orthogonal direction of the fiber according to the flow of the manufacturing process. there were.
[0003]
[Problems to be solved by the invention]
Such conventional techniques have the following problems. Since the insertion direction is not determined by the physical properties of the veneer, the portion of the node of the veneer may be almost destroyed depending on the insertion direction.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention is a dehydrating apparatus constituted by a pair of opposing rolls, and when removing a single plate into the dehydrating device in order to remove moisture from the single plate, A single plate insertion method, wherein the single plate is inserted in the fiber direction, in a direction in which the fiber direction of the joint is directed to a roll having a larger force for conveying the single plate of the pair of rolls,
Or, at least one drive roll of a pair of opposing rolls is driven to rotate, and the peripheral surface is formed in an uneven shape, and the other rubber roll has a peripheral surface covered with synthetic rubber. When the veneer is inserted into the dehydrator in order to remove moisture from the veneer, the veneer is in the fiber direction of the veneer, and the fiber direction of the knot is in the direction toward the drive roll. A veneer insertion method characterized by inserting
[0005]
When a single veneer before drying is inserted between the pair of rolls in the fiber direction of the veneer, and in the direction where the fiber direction of the knot is directed to the drive roll, moisture is removed from the normal portion of the veneer. Also, the section is hardly destroyed.
[0006]
【Example】
Hereinafter, an embodiment of the present invention will be specifically described with reference to FIG.
[0007]
As shown in FIG. 1, P is a single plate to be inserted. Reference numeral 1 denotes one drive roll, which is connected to an electric motor (not shown) and is further rotatably attached to a machine base (not shown). In addition, a large number of piercing bodies 3 having a substantially regular quadrangular pyramid (not shown) are provided on the peripheral surface at a pitch of 4 millimeters in the rotational direction and at a pitch of 2 millimeters in the direction orthogonal to the rotational direction. (Not shown) is 100 degrees, and the height is 0.5 millimeters from the peripheral surface.
[0008]
Reference numeral 5 denotes the other rubber roll, and the drive roll 1 and the rotation axis are parallel to each other. The rubber roll 5 is rotatably attached to a machine base (not shown). The rubber roll is covered with urethane rubber 7 having a rubber hardness of 98 degrees, which is a synthetic rubber, with a thickness of 40 millimeters in the radial direction.
[0009]
As shown in FIG. 1, between the pair of rolls configured as described above, the single plate P is in the fiber direction, and the one-dot chain line A, which is in the fiber direction of the node Q, faces the drive roll 1. When inserted in the direction, as indicated by the imaginary line (two-dot chain line) on the left, the single plate P and the node Q are hardly destroyed.
[0010]
Next, when the single plate P is inserted between the pair of rolls in the fiber direction and in the direction in which the one-dot chain line B, which is the fiber direction of the node Q, faces the rubber roll 5, as shown in FIG. As shown by the imaginary line (two-dot chain line), the single plate P is hardly destroyed, but the node Q is almost destroyed.
[0011]
Next, as shown in FIG. 3, when the insertion direction of the single plate P is arranged in the direction perpendicular to the fiber between the pair of rolls, a part of the fiber direction of the node Q is as shown by a one-dot chain line A. 1 and the fiber direction of a part of the nodes Q is directed to the rubber roll 5 as indicated by a one-dot chain line B. When the single plate P is inserted between the pair of rolls in the above state, the single plate P is hardly broken as indicated by an imaginary line (two-dot chain line) on the left, but the fiber direction in the node Q faces the rubber roll 5. The part that had been broken is almost destroyed, and the part of the node Q in which the fiber direction faces the drive roll 1 is hardly destroyed.
[0012]
When the single plate P is inserted between the pair of rolls in a state where the single plate P shown in FIG. 3 is turned over (not shown), the single plate P is hardly broken, but the fiber direction is a rubber roll within the node Q. The portion facing 5 is almost destroyed, and the portion of the node Q where the fiber direction faces the drive roll 1 is hardly destroyed.
[0013]
In addition, when both of a pair of rolls are drivingly rotated, the one where the force which conveys a single plate is larger is regarded as a driving roll.
[0014]
【The invention's effect】
In the present invention, the node of the single plate is hardly destroyed.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of an embodiment.
FIG. 2 is an explanatory diagram for comparison with an example.
FIG. 3 is an explanatory diagram for comparison with an example.
[Explanation of symbols]
1 ... Drive Roll 5 ... Roll Roll P ... Single Plate Q ... Section

Claims (2)

When a veneer veneer is inserted into the dehydrator in order to remove moisture from the veneer veneer with a dehydrator configured with a pair of opposing rolls,
The veneer veneer is checked in advance in the fiber direction of the veneer veneer, and the fiber direction of the knot is directed in advance toward the roll having the larger force for conveying the veneer veneer of the pair of rolls. A veneer veneer insertion method characterized by inserting a veneer. Of the pair of opposing rolls, at least one of the drive rolls is driven to rotate, and the peripheral surface is formed in a concavo-convex shape, and the other rubber roll is a dewatering device whose peripheral surface is coated with synthetic rubber. In order to remove moisture from the veneer veneer, when inserting the veneer veneer into the dehydrator,
A veneer veneer insertion method, wherein the veneer veneer is inserted in a fiber direction of the veneer veneer, and the fiber direction of the knot is confirmed in advance in a direction toward the drive roll.

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