Rotary peeling device

Abstract

To propose a rotary peeling device for efficiently peeling work members such as bamboo.SOLUTION: In a rotary peeling device, a rotating member 3 that rotates around a rotational axis 3a in a left-right direction is provided, and the rotating member 3 has at least three arm portions 7 that protrude in a radial outer direction from an axial core of the rotational axis 3a. A plurality of gripping portions 8 that can grip a work member 6 are provided at tips of each arm portion 7, and a movable cutting portion 5 is provided. The rotary peeling device comprises a supply portion 2 for supplying the work member 6 to the rotary member 3, and an ejection portion 4 for ejecting a member 6A obtained after rotationally peeling the work member 6. It can be arranged at a position where the tip of the arm portion 7 can receive the work member 6 from the supply portion 2 by rotating the rotary member 3, a position where the work member 6 can be rotationally peeled by the cutting portion 5, and a position where the peeled work member 6A can be ejected to the ejection portion 4.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a katsura peeling device. [Background technology]

[0002] In recent years, with the demand for wood rising sharply, bamboo veneer is produced by cutting it to a specified length in the axial direction, then cutting it at specified intervals in the circumferential direction, forming it into a plate, stacking these plate-shaped pieces, and then cutting them to a thickness of about 2 to 3 mm.

[0003] Another method is to produce veneer by peeling bamboo and layering it so that the bamboo fibers of adjacent pieces are perpendicular to each other. Summary of the Invention [Problem to be solved by the invention]

[0004] However, if the bamboo is cut to a specified axial length and then fed one by one to a cutting section to peel the bamboo, there is a problem that it takes a long time to peel a specified amount of bamboo because the bamboo is thin.

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a device for efficiently peeling bamboo or other processed materials. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention provides a rotary member that rotates around a rotary shaft in the left-right direction, the rotary member having at least three arms that protrude radially outward from the axis of the rotary shaft, and a plurality of gripping portions that can grip a workpiece are provided at the tip of each arm, a cutting portion movable in a direction perpendicular to an axis of the rotating shaft; The rotary member has a feed section for feeding the workpiece to the rotary member, and a discharge section for discharging the workpiece after the workpiece has been stripped. By rotating the rotating member, the tip of the arm can be positioned at a position where it can receive the workpiece from the supply section, at a position where it can peel the workpiece by the cutting section, and at a position where it can discharge the peeled workpiece to the discharge section.

[0007] Moreover, the workpiece may be made of bamboo. Effect of the Invention

[0008] The present invention provides a rotating member that rotates around a rotating shaft, the rotating member having at least three arms that protrude radially outward from the axis of the rotating shaft, and the tip of each arm is provided with a plurality of gripping portions for holding the workpiece, and by rotating the rotating member, the tip of the arm can be positioned at a position where it can receive the workpiece from the supply section, a position where it can peel the workpiece by the cutting section, and a position where it can discharge the workpiece after peeling to the discharge section, thereby making it possible to efficiently peel the workpiece. [Brief description of the drawings]

[0009] [Figure 1] FIG. 2 is a side view of a schematic diagram of a katsura peeling device according to an embodiment of the present invention. [Diagram 2] Top view of Figure 1. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the accompanying drawings.

[0011] Fig. 1 is a schematic diagram showing a peeling device 1 according to an embodiment of the present invention. The peeling device 1 is a device for peeling a generally columnar or cylindrical workpiece, such as bamboo (e.g. Madake, Moso bamboo, Hachiku bamboo, Medake bamboo), coniferous or broadleaf trees, palm trees, etc. The following embodiment will be described based on an embodiment using bamboo as the workpiece.

[0012] As shown in FIG. 1, the katsura peeling device 1 includes a supply unit 2, a rotating member 3, a discharge unit 4, and a cutting unit 5.

[0013] As shown in FIGS. 1 and 2, the supply section 2 is constituted by a belt conveyor in this embodiment, and supplies the bamboo, which is the material to be processed 6, to the rotating member 3.

[0014] The rotating member 3 is capable of rotating about a rotating shaft 3a. Three arms 7 protruding radially outward from both ends of the rotating shaft 3a in the axial direction of the rotating member 3 are provided. In this embodiment, three arms 7 are provided at both ends of the rotating shaft 3a in the axial direction of the rotating member 3, but the number of arms 7 may be at least three, and the number may be set arbitrarily.

[0015] Three gripping parts 8 capable of gripping the workpiece 6 are provided at the tip of each arm 7, and each gripping part 8 is extendable and contractible. By extending and contracting the gripping parts 8, the distance between the axis 8a, which is parallel to the axis of the rotation shaft 3a, and the end of each gripping part 8 can be changed around the axis 8a.

[0016] A rotating member 9 is rotatably provided at the tip of the grip portion 8. Each rotating member 9 is provided across the entire space between the left and right arms 7, 7.

[0017] At both ends of the rotating member 3 on the cutting section 5 side, driving members 10, 10 movable in an axial direction parallel to the axis of the rotation shaft 3a of the rotating member 3 are provided.

[0018] The cutting unit 5 is provided so as to be movable in the horizontal direction, which is a direction perpendicular to the rotation axis 3a of the rotating member 3. After both ends of the workpiece 6 are clamped by the driving members 10, 10, the cutting blade 5a of the cutting unit 5 is brought into contact with the surface of the workpiece 6, and the workpiece 6 is rotated by the driving member 10, so that the workpiece can be peeled to a predetermined thickness.

[0019] A rotating member 9 provided at the tip of the gripping portion 8 rotates as the workpiece 6 rotates.

[0020] The diameter of the workpiece 6 is reduced by stripping the outer periphery, but by moving the cutting part 5 toward the workpiece 6, the workpiece 6 can be stripped to a constant thickness. As the diameter of the workpiece 6 is reduced, the gripping part 8 extends, so that the axis of the workpiece 6 remains in the same position.

[0021] The discharge section 4 is configured to discharge a stripped member 6A, which is a workpiece 6 stripped by the cutting section 5.

[0022] In this manner, by using the stripping device 1 of the present invention, the workpiece 6 can be stripped efficiently.

[0023] Next, a method for peeling the workpiece 6 using the peeling device 1 will be described.

[0024] First, the feed section 2 is set so as to be able to feed the workpieces 6 appropriately.

[0025] Next, the rotating member 3 is rotated so that the tip of one arm 7 is in a position where it can receive the workpiece 6, which is bamboo, from the supply unit 2, and the tip of the other arm 7 is in a position where the workpiece 6 can be peeled off by the cutting unit 5.

[0026] Next, the workpiece 6 is gripped by one arm 7 and contracted so that the distance between the axis 8a and the end of the grip 8 becomes larger than the radius of the workpiece 6.

[0027] Next, by using a moving means not shown, the workpiece 6 located on the upstream side of the supply section 2 is supplied to a position where its axis is approximately aligned with the axis 8a, and then the gripping portion 8 is extended to grip the workpiece 6 with the gripping portion 8.

[0028] Next, the rotating member 3 is rotated until the arm portion 7 gripping the workpiece 6 is at a position where the workpiece 6 can be peeled off by the cutting portion 5.

[0029] Next, the workpiece 6 is clamped from both sides by the driving members 10, 10, and the cutting blade 5a of the cutting unit 5 is brought into contact with the surface of the workpiece 6. The workpiece 6 is then rotated by the driving member 10, and the surface of the workpiece 6 is peeled to a predetermined thickness. Immediately after the workpiece 6 starts to be peeled by the cutting unit 5, any parts with an uneven thickness are discarded and only parts with a stable thickness are collected. While the workpiece 6 is being peeled by the cutting unit 5, the workpiece 6 is supplied from the supply unit 2 to the other arm 7, and the workpiece 6 is gripped by its gripping unit 8.

[0030] After the stripping of the workpiece 6 is completed, the rotating member 3 is rotated until one arm 7 is in a position where the stripped material 6A can be discharged to the discharge section 4, and the stripped material 6A is discharged to the discharge section 4.

[0031] The above steps are carried out continuously.

[0032] Next, a method for manufacturing a veneer using bamboo as the workpiece 6 will be described.

[0033] First, after cutting and collecting the bamboo, it is cut to a specified length in the axial direction, 1000 mm in this example. It is preferable to cut the bamboo so that there are no nodes at either end. Next, it is boiled at a specified temperature.

[0034] Next, as described above, the workpiece 6 is stripped to a predetermined thickness using the stripping device 1.

[0035] Next, the stripped material is cut to a specified length to form a thin plate. It is then passed between two iron rollers, one above the other, while being pressurized, and heated to a specified temperature (100-120 degrees in this example) to remove sugars and oils from the bamboo and produce a straight plate-shaped material.

[0036] Next, if necessary, the plates are joined in a direction in which the grain direction is in the vertical direction, and the plates are joined in a direction in which the grain direction is in the horizontal direction.

[0037] Next, the boards are stacked so that the fiber directions of adjacent boards are perpendicular to each other, and the boards are joined together with an adhesive or the like and pressed together to form a veneer.

[0038] When a veneer is made from bamboo, it can be made thinner and still have the same or greater strength as a veneer made from wood. [Explanation of symbols]

[0039] 1. Katsura peeling device 2 Supply section 3 Rotating member 3a Rotation axis 4 Discharge section 5 Cutting part 5a cutting blade 6 Workpiece 7 Arms 8 Gripping part 8a Axis core 9 Rotating members 10 Driving member

Claims

1. a rotating member that rotates around a rotation axis in the left-right direction is provided, the rotating member has at least three arms that protrude radially outward from the axis of the rotation axis, and a plurality of gripping portions that can grip a workpiece are provided at the tip of each arm; a cutting portion movable in a direction perpendicular to an axis of the rotating shaft; The rotary member has a feed section for feeding the workpiece to the rotary member, and a discharge section for discharging the workpiece after the workpiece has been stripped. This peeling device is characterized in that, by rotating the rotating member, the tip of the arm can be positioned at a position where it can receive the workpiece from the supply section, at a position where it can peel the workpiece by the cutting section, and at a position where it can discharge the peeled material to the discharge section.

2. 2. The apparatus according to claim 1, wherein the workpiece is made of bamboo.

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