JP3315072B2 - Wood cutting machine with auxiliary circular saw - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a vertical cutting machine provided with a rail on which a work is placed along the lower end thereof. In the case where an auxiliary circular saw is provided to prevent "cutting" from occurring at the cut end, a mechanism for moving the auxiliary circular saw to a standby position which does not interfere with the main circular saw when the main circular saw is operated has been simplified. And a wood cutting machine.

[0002]

2. Description of the Related Art One of the most important characteristics required of the above-mentioned wood cutting machine called "panel saw" in the industry is that the cut end face is as clean as possible like other woodworking machines. It is to be finished. However, the teeth of the circular saw act to scratch the surface of the work, and therefore, depending on the shape of the saw teeth and the direction of rotation of the saw, the work W
, A remarkable "scratch" v is likely to be generated at the cut end.

[0003] Therefore, an auxiliary circular saw that rotates in a direction that does not cause "flagging" is disposed near the descending end position of the main circular saw for cutting. Conventionally, a method has been considered in which a cut is made in advance, and then the main circular saw, which has been waiting at the ascending end position, is cut while being lowered.

According to this method, at the time of cutting, the auxiliary circular saw needs to be retracted to a position where it does not interfere with the descending main circular saw. For this purpose, the auxiliary circular saw B and its attached mechanism are moved backward from the descending end position of the main circular saw A as shown in FIG. 9 or, as shown in FIG. Had been moved down. Reference numeral 51 in the figure
Is a cutting board, 52 is a rail on which the work W is mounted so as to be movable left and right, and 53 is a pressure setting mechanism for the work W.

[0005]

However, the auxiliary circular saw B
When the robot is moved backward, as shown in FIG. 9, a moving frame 54 and a moving mechanism (not shown) are required. Since the depth dimension is considerably increased, a large installation space is required. On the other hand, if the method of retracting the auxiliary circular saw B is adopted, as shown in FIG.
An extra space for allowing the auxiliary circular saw B to move downward is required on the lower side, and the rail 52 has to be provided at a higher position. As a result, workability at the time of cutting is deteriorated, and the production cost is increased.

Accordingly, an object of the present invention is to provide a so-called "panel saw" in which a rail on which a work is mounted so as to be able to move left and right is provided at the lower part of a vertical cutting machine. In addition, when the auxiliary circular saw that prevents the "cut-off" from being generated at the cut end of the work is provided,
An object of the present invention is to provide a wood cutting machine in which a mechanism for avoiding interference with the main circular saw is made more compact.

[0007]

In order to achieve the above-mentioned object, a wood cutting machine provided with an auxiliary circular saw according to the present invention is provided with a rail on which a work is placed along a lower end of a vertical cutting machine. The auxiliary circular saw for preventing the "cut-off" from being generated at the cut end of the work is provided at the lower end of the main circular saw that moves up and down along the cutting board.
The support shaft 1 is arranged in parallel with the rail 52 behind the
The pivotal member 4 having an auxiliary circular saw B attached to the distal end side of the pivotal shaft 1 is fitted on the proximal end side of the pivotal member 4, and the pivotal member 4 is moved around the pivotal shaft 1 in the front-rear direction. Driving means 6, 9 for rotating and moving left and right along the support shaft 1 and a control unit thereof are provided, and the auxiliary circular saw B is directed toward the descending end position of the main circular saw A only during its operation. After moving horizontally, the robot moves forward toward the workpiece. During standby, to avoid interference with the main circular saw A,
The driving means 6 and 9 are operated so as to move horizontally and retreat. Further, a fine position adjusting mechanism 20 for correcting a positional deviation of the auxiliary circular saw B with respect to the main circular saw A when the type of the main circular saw A is changed, may be attached to the driving means 9.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. 1 and 2,
This figure shows the appearance and an enlarged main part of a wood cutting machine 50 of this embodiment, which is called "panel saw" in the art.
In the figure, A is a main circular saw, B is an auxiliary circular saw, 51 is a vertical cutting machine for bringing a work (not shown) into contact with the front surface, 52
Is a roller conveyer (rail) on which the work is mounted so as to be able to move left and right, and 53 is a pressure setting mechanism for pressing the work against the cutting board 51 so as to be freely disengageable.

FIG. 3 shows a state in which the auxiliary circular saw B is mounted on a frame 56 on the rear side of the cutting board 51. A support shaft 1 having a predetermined length is disposed on the frame 56 behind the roller conveyor 52 and adjacent to the lower end position of the main circular saw A in parallel with the roller conveyor 52. 2
And 3 are bearings for supporting both ends of the support shaft 1.

A shaft hole of a cylindrical body 4a provided on the base end side of a rotation plate (rotation member) 4 is spline-fitted to the support shaft 1. Thus, the rotating plate 4 can rotate integrally with the support shaft 1 and slide right and left along the support shaft 1. A driving motor 5 for the auxiliary circular saw B is mounted on the tip end side of the rotating plate 4, and the auxiliary circular saw B is mounted on the drive shaft.

Reference numeral 6 denotes a rotation cylinder (drive means) for rotating the rotation plate 4 around the support shaft 1 in the front-rear direction. As shown in FIG. 3, the rotation cylinder 6 composed of a pneumatic or hydraulic cylinder is provided with a tip of an arm 7 protruding in a fixed state at the left end (in the figure) of the support shaft 1 and a bearing member attached to the frame 56. 8 are connected by pins at both ends thereof.

Reference numeral 9 denotes a left-right moving cylinder (driving means).
It serves to move the rotating plate 4 right and left along the support shaft 1. The left / right movement cylinder 9 is provided between the arm 7 and the position fine adjustment mechanism 20 attached to the rotary plate 4.

The position fine adjustment mechanism 20 moves the rotary plate 4 along the support shaft 1 to change the type of the replaceable main circular saw A, and moves the auxiliary circular saw B to its operating position. If the auxiliary circular saw B is displaced from the position immediately below the main circular saw A when the rotation is brought, the deviation is corrected.

The main structure of the position fine adjustment mechanism 20 of this embodiment is a female screw forming member 20 attached to the rotating plate 4 side.
A and a male screw forming member 20B attached to the left and right movement cylinder 9 and screwed to the female screw forming member 20A. Reference numeral 21 in the drawing denotes a safety cover of the auxiliary circular saw B.

Next, the operation of the auxiliary circular saw B will be described with reference to FIGS.
This will be described with reference to FIG. The auxiliary circular saw B is a control unit (not shown) when the panel saw is stopped and when the main circular saw A is operated.
To the standby position shown in FIG.
At this time, in order to remove the auxiliary circular saw B from a position immediately below the main circular saw A, the rotating plate 4 is moved (retracted) to the left end side in the figure along the support shaft 1 by the left / right moving cylinder 9. I have. Also, in order to retract the auxiliary circular saw B from the front surface of the cutting board 51 (FIG. 7).
The rotation plate 4 is rotated backward around the support shaft 1 by the rotation cylinder 6.

As described at the beginning, the auxiliary circular saw B is lowered while rotating the main circular saw A, and before the work W is started to be cut, the auxiliary circular saw B is rotated in a direction in which "saddle" does not occur. By providing a cut at the cutting end of the work W in advance (see FIG. 8), it plays a role of preventing the occurrence of “scratch” at the cutting end of the work W.

In order to move the auxiliary circular saw B from the standby position to the operating position shown in FIG. 8, first, the rotating plate 4 is turned rightward in the figure by the left-right moving cylinder 9. The auxiliary circular saw B is moved (advanced) to a position where the surface of the auxiliary circular saw B coincides with the surface of the main circular saw A (see FIG. 5).

Thereafter, in order to press the auxiliary circular saw B against the back surface of the work W which is in contact with the front surface of the cutting board 51,
Let go forward. This can be done by rotating the rotating plate 4 forward around the support shaft 1 by the rotating cylinder 6 (see FIG. 6).

Then, as shown in FIG. 8, the cut lower end of the work W can be partially cut in advance. Sign u
Indicates this pre-cut portion. Thus, the possibility that the main circular saw A causes “scratching” at the cut end of the work W is reliably eliminated.

In the above configuration, the shape of each component, the configuration of the driving means 6, 9 and the like can be variously changed by diverting a known technique. Is done.

[0021]

As is apparent from the above description, the wood cutting machine according to the present invention provided with the auxiliary circular saw for preventing the cutting edge from "scratching" has the advantage that the conventional circular saw with the auxiliary circular saw is provided. In comparison, the following practically superior effects can be obtained. (A) The depth dimension and manufacturing cost of the machine can be significantly reduced as compared with the case where the auxiliary circular saw is moved back and forth on a gantry provided behind the rail. (B) Unlike the method in which the auxiliary circular saw is retracted below the rail, it is not necessary to increase the installation position of the rail, so that the workability is not deteriorated, and the manufacturing cost and the height of the machine are kept low. (C) If the auxiliary circular saw position fine adjustment mechanism is provided, the vertical positional relationship between the two circular saws can be easily adjusted even when the main circular saw is replaced with another type. (D) In summary, the manufacturing cost, the required installation space, the usability, etc., are remarkably superior to the conventional one.

[Brief description of the drawings]

FIG. 1 is a perspective view of a front side of a wood cutting machine, showing one embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of FIG. 1 for illustrating an assembling position of an auxiliary circular saw and its movement.

FIG. 3 is a rear perspective view of the cutting machine, showing an assembled state of the auxiliary circular saw;

FIG. 4 is a diagram corresponding to FIG. 3, showing a state in which the auxiliary circular saw is at a standby position;

5 is a diagram corresponding to FIG. 3, showing a state in which the auxiliary circular saw is laterally moved to a position immediately below the main circular saw.

FIG. 6 is a diagram corresponding to FIG. 3, showing a state in which the auxiliary circular saw has advanced toward a workpiece W;

FIG. 7 is a side view showing the positional relationship between the auxiliary circular saw and the workpiece when the auxiliary circular saw is on standby;

FIG. 8 is a side view showing a state in which the auxiliary circular saw is operated, and a partial side view showing a work whose lower end is preliminarily cut;

FIG. 9 shows a first conventional example, in which an auxiliary circular saw is retracted rearward with respect to a main circular saw.

FIG. 10 shows a second conventional example, in which an auxiliary circular saw is retracted downward with respect to a main circular saw.

FIG. 11 is an explanatory view showing a state in which the main circular saw causes “scratching” at the lower end of the work when the auxiliary circular saw is not attached.

[Explanation of symbols]

 Reference Signs List A Main circular saw B Auxiliary circular saw 1 Support shaft 2, 3 Bearing 4 Rotating plate (Rotating member) 4a Cylindrical body 5 Motor 6 Rotating cylinder (driving means) 7 Arm 8 Bearing member 9 Left-right moving cylinder (Driving means) 20) Position fine adjustment mechanism 20A Female screw forming member 20B Male screw forming member 21 Safety cover 50 Panel saw (wood cutting machine) 51 Cutting machine 52 Roller conveyor (rail) 53 Pressure setting mechanism 54 Transfer mount 55 Mount 56 Frame u Preceding cut location v “Sasagure”

Claims (2)

(57) [Claims] 1. A rail for mounting a work is provided along a lower end of a vertical cutting machine, and an auxiliary circular saw for preventing generation of "scratch" at a cutting end of the work is vertically moved along the cutting machine. At the lower end of the moving main circular saw, a support shaft 1 is provided behind the rail 52 in parallel with the rail 52.
The pivot 1 is fitted with an auxiliary circular saw B at the distal end thereof, and the proximal end side of the pivot member 4 is fitted into the pivot 1. Driving means 6 and 9 for rotating around the shaft 1 in the front-rear direction and moving left and right along the support shaft 1 and a control unit therefor are provided. After the horizontal movement toward the lower end position, the drive means 6 and 9 are operated so as to move forward toward the work, and to move horizontally and backward during standby to avoid interference with the main circular saw A. A wood cutting machine provided with an auxiliary circular saw. 2. A method for correcting a positional shift of the auxiliary circular saw B with respect to the main circular saw A when the type of the main circular saw A is exchanged.
2. A wood cutting machine with an auxiliary circular saw according to claim 1, wherein a position fine adjustment mechanism is provided on said driving means.