JPS59111804A - Face cutter for woodworking - 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 has a rotating cutter and a pair of holding shafts that hold both end faces of a columnar workpiece, thereby cutting the circumferential surface of the workpiece with extremely high precision and efficiency. This invention relates to a surface cutting machine for woodworking that can finish a tapered surface.

Disclosed is a retouched lumber in which a lumber whose peripheral surface is finished in a tapered shape is press-fitted and embedded into a tapered hole formed by removing a defective part such as a hole tube. The object of the present invention is to provide a surface cutting machine for woodworking that can manufacture columnar bodies whose peripheral surfaces are finished with a tapered surface, for example, to be used as such buried wood, etc., with extremely high precision and efficiency. One embodiment will be described based on the drawings.

In Figs. 1 to 3, the woodworking surface cutting machine (1) of the present invention is
A pair of holding shafts (3) (4) that hold a cylindrical or prismatic wood material to be cut (2), and both holding shafts (3).
) (4) and a rotary cutter (5) for finishing the peripheral surface of the workpiece (2) held by the cutter (2) into a tapered surface. A sliding rectangular plate-shaped sliding table (7) is attached to a base (9
), and the holding shaft (3) supported by a bearing OQ and the holding shaft (4) supported by a bearing (11) are arranged on the sliding table (7). , arranged on the left and right with the axes aligned and the tips facing each other, and the sliding base (7)
The rotary cutter (5) is disposed in front of the cutter.

In addition, on the bottom surface of the sliding table (7), there are guide tubes (g) α on which guide shafts (2) (2), which are arranged at intervals on both sides of the base plate (9), slide. is attached, and the guide tube Q→α
The sliding table (7) moves back and forth due to the sliding of the leaf. α4I in the figure
, IO are stop members that collide with the front and rear end faces M (171) of the slide table (7) and regulate the sliding stroke of the slide table (7), and are attached to the upright piece a9 or (e). The screw shaft ■υ or (A) is screwed onto the carved acid screw, and the screw shaft Q
By adjusting the length of protrusion of υ (A) from the upright piece α (A), the sliding stroke can be arbitrarily adjusted.

The air cylinder a (6) is fixed on the base (9) at the rear position of the slide table (7), and its rond (
b) Pivotally attach the tip to the hanging piece (b) hanging down from the rear end of the lower surface of the slide table (7), approximately in the center. Therefore, the sliding table (7) is caused to slide due to its expansion and contraction. Further, in this embodiment, the hydraulic cylinder is connected to the machine cylinder a (6).
), and the rod holder is provided with a threaded portion extending substantially over its entire length, and a screw nut () a 5b-He◇ is screwed into the rod holder at a position near its tip and proximal end.

Also, the two parties Tsudo (a) and (ho) are bridged by a joint piece 0''4.
(c), and the rod can be inserted into the through hole bored at the other end. and air cylinder a (6)
Due to the extension of , the sliding table (7) moves forward relatively quickly, and at the same time 6
Then, the joint piece 00 advances toward the locking nut a (g), and at a slightly forward position where the sliding base (7) collides with the locking member α→, the joint piece (2) and the locking nut & (to) After that, the air cylinder a (6)
expands very slowly together with the hydraulic cylinder (g),
The sliding table (7) is stopped by coming into contact with the stop member a→. The mounting positions of the locking nuts a and 00 are adjusted so that the joint piece 0 and the locking nuts a (g) can be aligned just before the rotary cutter (5) starts cutting the workpiece (2). . The protruding length of the screw shaft Qυ of the stopper member α→ regulates the amount of cut into the workpiece (2) by the rotary cutter (5),
The predetermined protrusion length is adjusted depending on the size of the columnar body (2) to be manufactured. On the other hand, when the air cylinder a(6) is contracted, the joint piece 0 collides with the locking nut b0, so that the air cylinder a(6) contracts and returns to its initial state.

The holding shaft (3) can be rotated at low speed, for example counterclockwise, via a chain device (g). Also, the holding shaft (3)
The diameter of the shaft is set smaller than the diameter of the small diameter side of the columnar body (to) to be manufactured, and a positioning protrusion (07) is provided in the center of the tip surface (07) as shown in Fig. 8. Further, a claw piece QO that bites into one end surface (281) of the material to be cut (2) is formed on the peripheral edge thereof.

The holding shaft (4) is rotatable and can move forward and backward by expanding and contracting an air cylinder b attached to the outer surface of the bearing αυ. Similarly, positioning protrusion 0 [phase], workpiece material (2
) is formed with a claw piece θQ that bites into the other end surface (282).

The rotary cutter (5) has an even number of cutting blades (the upper blades are protruding from the base (9)) arranged at an equiangular pitch around the disc body, and is fixed in front of the holding shaft (3). It is fixed to a rotating shaft (c) which is supported by a bearing 0, which is attached to the shaft, and is rotated at high speed in the same direction as the material to be cut (2) via a belt device θ0 to cut the material. Note that the width of the cutting edge of the cutting blade θ is slightly longer than the length of the material to be cut (2), as shown in FIGS. 6(a) to 6(d).
The cutting edge is gently inclined in accordance with the toothed surface to be formed on the material to be cut (2).

Note that the holding shaft (3) starts rotating as soon as the joint piece 0 collides with the locking nut a00, and the rotation of the holding shaft (4) stops at the same time as the joint pieces collide with the locking nut a00 (bc31). Configure it wisely.

Material to be cut using Zhao Miaki's woodworking surface cutting machine (1) (2)
The process of finishing the peripheral surface as a tapered surface will be explained.

Note that the material to be cut (2) used in the explanation of this process is, for example, the center layer part 1) of the round cut material made by cutting a branch into rings, as shown in FIG. This is a punched piece (2a) punched into the cylindrical blade 6e using a cylindrical blade 6e with a sharp blade at the tip and a pressing tool (2a), and its both end faces (
2SIX2S2) has a depression that clearly marks its center.

First, as shown in Figure 6(a), with the slide table (7) in contact with the screw shaft, one end surface (
281) is pressed against the holding shaft (3) so that the protrusion (T) of the holding shaft (3) comes into contact with the recess (C1, then the air cylinder bO]), and the holding shaft (4) is punched out. (2a) is advanced toward the other end surface (2S 2), and the workpiece (2) is positioned so that the protrusion) is in contact with the concave area on the other end surface (282) side, and both holding shafts (3 ) (
When the material to be cut (2) is held by the method 4), the claw pieces bite into the material to be cut (2), and the material to be cut (2) is securely held and its axis (Ll) is aligned with the holding shaft (3) ( 4) Axis center (L
2) is maintained consistent with . Next, air cylinder a (
6), the sliding table (7) moves forward, and the joint piece (a) collides with the stopper a (7), and at the same time the holding shaft (3) moves forward.
) begins to rotate counterclockwise at low speed, and the workpiece (2) also begins to rotate together with the holding shaft (3) and the holding shaft (4). Thereafter, the workpiece (2) moves very slowly toward the rotating cutter (5) under the action of the hydraulic cylinder (g), and its circumferential surface rotates counterclockwise as shown in FIG. 6(b). The cutting blade 071 rotating at high speed gradually cuts the material, and as shown in FIG. 6(C), when the sliding table (7) collides with the screw shaft (2I) and stops, the cutting is completed and the predetermined size is A columnar body (G) with a smooth tapered surface (35 pieces) is manufactured. After that, the air cylinder a (6)
When f is reduced, the rotation of the holding shaft (3) is stopped when the joint piece) collides with the locking nut b01), and the slide table (7) stops when it collides with the screw shaft (a). . (See Figure 6(a)) Next, air cylinder b (11)
When the holding shaft (4) is reduced, the holding shaft (4) retreats and at the same time the columnar body (
c) falls into, for example, a storage container (not shown) placed on a base (9).

As shown in FIG. 7, the columnar body (1) manufactured in this way is used, for example, as a buried wood (85a), and is used to remove defective parts such as holes formed on the surface of wood such as pillars and boards. For example, it is press-fitted and embedded in a tapered hole formed by removing it with a drill.

When performing such wood burial treatment, the columnar body-periphery surface (85Eg'
) is desirably coated with adhesive. In this case, as shown in the same figure, the circumferential surface of the columnar body (c) (tapered surface
), it is possible to securely hold the adhesive applied to the circumferential surface (35) and improve the adhesive strength. When (c) is press-fitted into the hole and the surface is finished, the circumferential surface (35) can be provided from the small diameter end face to the large diameter end as long as the fine groove @◇ is not formed on the finished surface. Fig. 8 shows an example of a cutting blade θ that can form such a narrow groove (61) at the same time as surface finishing.
■There are multiple sharp groove cutting blades near the lower end of the slope...
By protruding in advance, multiple thin grooves O])
(61) can be carved on the small-diameter end surface side of the columnar body (to) peripheral surface (350) at the same time as forming the tapered surface.

As described above, the woodworking surface cutting machine of the present invention has a pair of holding shafts that hold a workpiece having a columnar or prismatic shape, and a peripheral surface of the workpiece held by the holding shafts as a tapered surface. As a result of including a finishing rotary cutter, the circumferential surface of the material to be cut can be finished into a tapered surface with extremely high precision and efficiency.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the present invention, Fig. 2 is a line diagram showing its drive system, Fig. 8 is a perspective view showing a holding shaft, Fig. 4 is a perspective view showing an embodiment of the present invention;
The figure is a perspective view illustrating an example of a circular cut material, FIG. 5 is an explanatory diagram showing the procedure for punching out the center layer of a circular cut material, and FIGS. 6 (1) to (d)
is an explanatory diagram explaining the action of the device according to the present invention, and FIG. 7 is a columnar body? FIG. 8 is a perspective view showing a case where the cutting blade is used as a filler for repairing a defective part of a wooden material, and FIG. 8 is a plan view showing another example of the cutting blade together with a columnar body. (1)... Woodworking surface cutting machine, (2)... Cutting material,
(3) (4)... Holding shaft, (5)... Rotating cutter,
6'iJ...cutting blade, 0g)...blade edge. Patent Applicant Yasuki Inoue Agent Patent Attorney Kiyoshi Okamoto Figure 6 (a) Figure 6 (b) Figure 6 (c)

Claims (1)

[Claims] (1) A surface cutting machine for woodworking that cuts the circumferential surface of a column-shaped wood workpiece and finishes it as a tapered surface: A pair of holding shafts that are placed opposite each other at a predetermined interval so that their axes coincide. Both end faces of the workpiece can be held between the workpiece and the workpiece is rotated together with both holding shafts in the holding state, and the workpiece has a blade width equal to or longer than the length of the workpiece, and the cutting edge is cut by the workpiece. A rotary cutter, which is equipped with a cutting blade inclined according to the tapered surface to be formed in the material and rotates in the same direction as the material to be cut, can be relatively approached to the material to be cut. A surface cutting machine for woodworking, characterized in that the circumferential surface of a material to be cut is finished as a tapered surface.