JPS6241772Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a slicer device used for manufacturing laminated decorative veneers and the like.

In general, laminated decorative veneers are manufactured by laminating a plurality of wood veneers using an adhesive, pressing them together using a mold to create fritches, and slicing the fritches by using a slicer device.

In the laminated decorative veneer thus obtained, the summer wood portion is expressed by the adhesive layer, and the spring wood portion is expressed by the woody veneer portion. However, when producing laminated decorative veneers in this way, the hardness of the adhesive layer is greater than that of wood veneers, so the cutting edge of the slicer device suffers severe wear, resulting in the loss of spring wood. A problem has arisen in which blurring occurs in the area, resulting in frequent blurring defects. Conventionally, to solve this problem, the cutting edge has been medium sharpened. FIG. 1 shows the relationship between the degree of wear of the cutting edge and the incidence of blurring during this medium sharpening. In the figure, curve A is a cutting edge wear degree curve, and curve B is a runout occurrence rate curve. Further, FIG. 2 shows the intermediate sharpening time required to restore a worn blade edge to its initial state. In other words, in Figure 1, the cutting edge becomes ΔR due to the slicing time of 15 minutes.
To restore a worn item to its initial state,
As is clear from FIG. 2, it can be seen that the medium sharpening time is approximately the same as the slicing time. That is, the slicing time and the medium sharpening time are approximately the same, as shown in FIG. Therefore, in the conventional slicer device, the efficiency of slicing was extremely poor due to the intermediate grinding process.

[Purpose of invention]

This invention was devised in view of these circumstances, and its purpose is to provide a slicer device that can efficiently slice fritches.

[Disclosure of invention]

That is, this invention consists of a rotating shaft, a plurality of cutting blades each fixed to the rotating shaft with the cutting edge facing outward, and a stack of fritches to attach the cutting edge of one of the plurality of cutting blades to the rotating shaft. a moving means for slicing by moving the fritch relative to the rotational axis while in contact with a surface; a polishing means for polishing the cutting edge of the cutting blade not involved in slicing; A rotating shaft rotating means for rotating and maintaining the state is provided, and when the cutting edge of the cutting blade involved in slicing becomes worn, the rotating shaft is rotated so that the cutting edge of the abrasive can participate in slicing. The gist is a slicer device characterized by the following.

This slicer device slices with one cutting blade out of multiple cutting blades, while the other cutting blade is semi-sharpened to make a certain number of slices, and then it switches to the semi-sharpened cutting blade and slices. This eliminates the need to interrupt slicing for medium sharpening. Therefore, efficient slicing can be achieved.

Next, this invention will be explained based on examples.

FIG. 4 is a block diagram of an embodiment of this invention.
Reference numeral 1 denotes a rotation axis provided parallel to the laminated surface of the flitch 5. A fixture 4 is attached to the rotating shaft 1 with a pair of cutting blades 2 and 3 with their cutting edges facing outward.
Fixed by 5 is held by a holder (not shown) with its longitudinal direction parallel to the axial direction of the rotating shaft 1, and the laminated surface is brought into contact with the cutting blade 2 and sent downward to be sliced. .
6 is a nose bar that guides this feeding (movement). 7 is a grindstone for polishing the cutting edge of the other cutting blade 3 that is not involved in slicing. This grindstone 7 is fixed to a sliced veneer support 9 by a holder 8.

The rotating shaft 1 is rotated 180 degrees counterclockwise by a rotation drive mechanism (not shown) when a predetermined number of slices have been sliced by one of the cutting blades 2 and then fixed, and the other cutting blade is polished. 3 to be involved in slicing. Then, while the other cutting blade 3 is slicing, the cutting edge of one cutting blade 2 is polished. Next, when the other cutting blade 3 has sliced a certain number of slices, the rotating shaft 1 rotates counterclockwise again.
It is rotated 180 degrees and fixed, and slicing by one cutting blade 2 is now performed. In this way, by rotating the rotating shaft 1 by 180 degrees, the slicing and polishing of the flitch are alternately performed, so that the slicing of the flitch is performed continuously.

In addition, when the rotating shaft 1 is rotated by 180 degrees, the north bar 6 and the grinding wheel 7 are rotated in advance.
can be moved from the state shown in FIG. 4 to the state shown in FIG. In FIG. 5, the broken line indicates the state shown in FIG.

In this way, according to this slicer device, after slicing a predetermined number of sheets with one cutting blade, the rotation axis is rotated 180 degrees so that slicing is performed with the other cutting blade whose cutting edge has been polished. There is no need to interrupt the operation of the slicer device to halfway sharpen the cutting edge, unlike in the past. Therefore, slicing can be performed extremely efficiently.

Incidentally, when slicing the fritches as described above, a slicer surface plate having a structure as shown in FIG. 6 may be used as a fixture for fixing the fritches. That is, this slicer surface plate is configured such that one end of the slicer surface plate is centered around a shaft 10 and the other end thereof can be moved up and down as shown by the arrow a by means of a rotary encoder 11. Therefore, by attaching the fritch 12 to this slicer surface plate 14 with a chuck 13 and rotating the slicer surface plate 14 by a predetermined angle around the shaft 15, the cutting edge 1
The surface into which the cutting edge 16a of No. 6 enters (indicated by the dashed line) can be changed. By doing this, the fritches 12 may be warped,
This makes it possible to avoid a situation where the same wood grain pattern does not appear in the resulting laminated decorative veneer due to poor lumber precision. That is,
Up until now, if sawing accuracy was poor, the method was to slice the wood, examine the grain pattern that appeared, and then re-sawn the wood and sliced it again. In addition, if the frits are warped, a jig is inserted between the frits and the slicer surface plate to adjust the grain pattern while checking the pattern during slicing so that the grain pattern is constant. If the warp was extremely large, it could not be adjusted using a jig alone, so re-sawning was performed repeatedly. However, in this case, the fritches must be removed from the slicer, re-sawn, and re-applied to the slicer, which makes the work extremely complicated and takes a long time. However, as shown in Fig. 6, the slicer surface plate 1
By configuring the wood grain pattern so that it can rotate around the shaft 15, it becomes possible to assemble the wood grain pattern while slicing, which greatly simplifies the work and saves time. become.

[Effect of idea]

As mentioned above, the slicer device of this invention is
A rotating shaft, a plurality of cutting blades fixed to this rotating shaft with their cutting edges facing outward, and a state in which the cutting edge of one of the plurality of cutting blades is in contact with the laminated surface of the fritchi. A moving means for slicing by moving the fritchi relative to the rotational shaft, a polishing means for polishing the cutting edge of the cutting blade not involved in slicing, and a polishing means for rotating the rotational shaft at a predetermined angle to check the state. The rotating shaft is equipped with a holding rotating shaft rotating means, and when the cutting edge of the cutting blade involved in slicing becomes worn, the rotating shaft is rotated so that the polished cutting blade can participate in slicing, making slicing extremely efficient. be able to do it.

[Brief explanation of the drawing]

Figure 1 is a curve diagram of cutting edge wear vs. slicing time, Figure 2 is a diagram of blade wear vs. medium sharpening time, Figure 3 is a diagram of number of slices vs. medium sharpening time, and Figure 4 is an example of this invention. The configuration diagram, FIG. 5 is an explanatory diagram of its operation,
FIG. 6 is a block diagram of an example of an improved slicer surface plate. 1... Rotating shaft, 2, 3... Cutting blade, 5... Fritsch, 6... Nose bar, 7... Grindstone, 9... Slice veneer holder.

Claims (1)

[Claims for Utility Model Registration] (1) A rotating shaft, a plurality of cutting blades fixed to the rotating shaft with their cutting edges facing outward, and one of the cutting blades among the plurality of cutting blades. a moving means for slicing by moving the fritchi relative to the rotational axis with the cutting edge in contact with the laminated surface of the fritchi; a polishing means for polishing the cutting edge of the cutting blade not involved in slicing; Equipped with a rotating means for rotating the shaft by a predetermined angle and maintaining that state, and when the cutting edge of the cutting blade involved in slicing becomes worn, the rotating shaft can be rotated so that the polished cutting blade can participate in slicing. A slicer device characterized by: (2) The slicer device according to claim 1, wherein the plurality of cutting blades are two cutting blades and are provided at positions axially symmetrical with respect to the rotation axis.