JPH0219211Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cutting waste discharge device for a wood planer.

Generally, as shown in Fig. 1, the above-mentioned planer includes a plurality of guide rollers 1, 1', etc. supported by a surface plate.
The guide roller 1 in the upper part of the surface plate,
A plurality of feed rollers 3, 3' are supported rotatably on a roller case 2, and a plane body is rotatably supported in a space 4 between the feed rollers 3, 3'. 5, and a motor (not shown) that drives and rotates the feed rollers 3, 3' and the planer body 5, and a workpiece W placed on a surface plate.
are the guide rollers 1, 1' and the feed roller 3,
3', the feed roller 3,
The cutting portion A shown in the drawing is caused by the planer blades 6, 6' of the planer barrel 5, which are driven and rotated in the direction of the arrow a by being forcibly fed in the direction of the arrow a by 3'.
Machining surface B is cut at .

However, since the cutting and discharging means in the conventional planer machine is configured simply by attaching a cover 7 above the opening of the cavity 4 as shown in the figure, the planer body 5 is driven and rotated in the direction of the arrow a shown in the figure. At this time, the air around the plane body 5 is influenced by the rotation, and the air around the plane body 5 is
Air is blown moving in directions c, d, e, and f.
The cutting waste generated in the cutting part A by the air blowing was only scattered and discharged in the directions of the arrows b to f.

In addition, not all of the cutting waste is scattered in the directions of the arrows b to f, but some of it is rotated in the directions of arrows g and h shown in the figure along with the direction of rotation of the planer barrel 5, so that it is not scattered in the directions of the arrows b to f. Enter part A and plane blades 6, 6'
and the material to be cut W, and some of these cutting chips are relatively heavy and large and are not blown away by the air blown as the plane barrel 5 rotates. This method has the drawback that the machining surface B is damaged due to repeated cutting, making it difficult to obtain a smooth finish.

The present invention is an attempt to eliminate the above-mentioned drawbacks of the conventional method, and a baffle plate is placed on the roller case at the rear part of the plane body in the direction of rotation, and extends from the opening edge of the space where the plane body is housed to the side of the plane body. By fixing the baffle plate in a protruding state and by providing a ventilation passage between the baffle plate and the roller case so that the interior of the space can communicate with the outside, cutting debris generated as the plane body rotates can be removed. The object of the present invention is to provide a cutting waste discharge device for a wood planer that can prevent double cutting by preventing the entrainment of wood chips, and improve the cutting waste discharge function. It is.

The present invention will be described in detail below based on illustrated embodiments. For convenience of explanation, among the numerals added to the explanatory text and drawings, the same numerals as in the conventional example indicate the same members and parts.

First of all, the woodworking machine is shown in FIG. 2, and as in the conventional example described above, a plurality of (two in the illustrated example) guide rollers 1, 1'' are rotatably supported on a surface plate.
Feed rollers 3 and 3' are respectively pivotally supported at appropriate intervals in the feeding direction of the cut material W in the roller case 2 provided above the surface plate, and are provided between the two feed rollers 3 and 3'. In the vertically penetrating space 4, a plane body 5 is rotatably supported and pivoted parallel to the feed rollers 3, 3', and is provided at symmetrical positions on the outer circumference of the plane body 5. Planer blades 6, 6' are removably attached to the flat mounting surfaces 5', 5'' via presser plates 5a, 5b by means of screws or the like. The cutting edges 6a and 6b protrude by a desired length from the outer peripheral surface of the plane body 5, so that they protrude downward from the lower opening 4a of the cavity 4, and the workpiece W is moved between the guide rollers 1 and 1' and the feed roller 3. , 3', the feed roller 3,
3' is fed in the direction of the arrow k shown in the figure, so as to be cut at the cutting part A shown in the figure, and furthermore, the upper opening 4 of the cavity 4 is cut.
A cover 7 is attached above b.

Here, the cutting waste discharge port 8 is located at the rear part of the plane body 5 in the rotational direction, and is formed between the rear part of the cover 7 and the upper surface 2a of the rear part of the roller case 2. A slight gap 9 is provided between the front end portion 7a and the upper surface 2b of the front portion of the roller case 2, and as the plane body 5 rotates, outside air flows through the gap 9.
The cutting waste is discharged toward the discharge port 8 by being sucked in in the direction of the arrow l shown in the drawing.

The proposed cutting waste discharge device is shown in Figures 2 and 3.
As shown in the figure, a baffle plate 10 is provided on the upper surface 2a of the roller case 2 at the rear part in the rotational direction of the plane body 5 at the upper opening of the space 4, and the front end 10a of the baffle plate 10 is located at the upper opening of the space 4. The screw 11 is fixed by means such as a stopper in a state in which it protrudes from the opening edge 4c toward the plane body 5 side, that is, from the opening edge 4c into the opening 4b of the space 4, and thereby the cutting waste is removed from the plane body 5. Therefore, it prevents the cutting part A from being rolled up and moved, and a ventilation passage 12 is provided between the baffle plate 10 and the upper surface 2a of the roller case so that the inside of the space 4 and the outside can communicate with each other. It is provided so as to correspond approximately to the length of the body 5, and the outside air is directed through the ventilation path 12 by the arrows i,
The structure is such that the air is sucked in the j direction to increase the force of the blowing force when the plane barrel rotates five times, thereby enhancing the cutting waste discharge function.

Here, the baffle plate 10 has its front end 10a
are the cutting edges 6a, 6b of the plane blades 6, 6' in the plane body 5.
When the baffle plate 10 is fixed with the screws 11, the air passage 12 is fixed with a washer or other material between the baffle plate 10 and the upper surface 2a of the roller case. or by protruding baffle plate receiving seats 2c of an appropriate height around the openings of screw holes drilled in the upper surface 2a of the roller case 2, as shown in the illustrated example.
Furthermore, it is formed by providing a groove (not shown) on the back surface of the baffle plate 10 or on the upper surface 2a of the roller case 2.

The baffle plate 10 also closes the opening edge 4 of the cavity 4.
It is fixed with a length approximately equal to c.

In the above configuration, the planer is operated when the motor (not shown) is energized, and the feed rollers 3, 3' and the planer body 5 are moved in the direction indicated by the arrows m and 5 in FIG.
Since they are driven and rotated in the direction a, the workpiece W is fed in the direction of the arrow k shown in the figure by the forced feeding of the feed rollers 3 and 3', and processed by the planer blades 6 and 6' of the planer body 5. Surface B is cut by cutting section A. At this time, as the plane body 5 rotates, the air around it is affected, and the arrows b, c, d shown in the figure
Since the air is blown in the directions e and f, most of the cutting debris generated in the cutting part A is moved in the directions indicated by the arrows b to
It is discharged in the f direction. Some of the cutting waste is rotated in the direction of arrow g along with the direction of rotation of the plane barrel 5, but since the baffle plate 10 is made to protrude from the opening edge 4c of the cavity 4, this baffle plate 10 The cutting chips come into contact with each other and are discharged in the direction of the arrow h shown in the figure, that is, toward the discharge port 8 side. In other words, it is caught in the plane body 5 and the arrow
The flow of the cutting chips rotated from the direction of the arrow j is changed from the direction of the arrow g shown in the figure to the direction of the arrow h, so that the cutting chips no longer enter the cutting part A.

Moreover, by attaching the baffle plate 10 as described above, the baffle plate 1 can be placed in the space 4 and
A vacant room C is formed on the back side of 0,
The empty space C is formed by the arrow j shown in the figure as the plane barrel 5 rotates.
The flow of air in this direction creates a negative pressure, which would normally cause wind noise from the plane body 5, but according to the present invention, there is a negative pressure between the baffle plate 10 and the upper surface 2a of the roller case. Since a ventilation passage 12 is provided in the chamber C, outside air is sucked through the ventilation passage 12 by the rotation of the planer body 5, and air is supplied into the cavity C in the direction of the arrow i shown in the figure. No cutting noise is generated, and the air supplied in the direction of arrow i flows in the direction of arrow j, cutting the cutting part A.
The air passes along with the cutting waste and is blown in the directions of arrows b to f.

Therefore, the amount of air supplied in the direction of the arrow i is strongly blown in the directions of the arrows b to f, thereby increasing the cutting waste discharging force.

The baffle plate 10 has long holes in its width direction, and screws 11 are provided on the upper surface 2a of the roller case 2.
It is fixed with a stopper, and with the screw 11 loosened, it can be moved laterally within the effective length of the elongated hole, that is, the plane body 5
It is also possible to make it possible to adjust the length of the protrusion to the side.

As explained above, since the cutting waste discharging device of the woodworking planer according to the present invention is constructed and operates, some of the cutting waste that is rotated and moved while being caught in the planer barrel 5 is removed by the baffle plate. 10 and the flow is changed to the outside direction, so that the cutting debris no longer enters the cutting part A of the workpiece W, and the machining surface B of the workpiece W is struck twice. Since it is possible to eliminate the conventional drawbacks such as scratches caused by cutting, it is possible to improve the cutting accuracy of the processed surface B, and also to allow the baffle plate to pass through the ventilation passage 12 formed between the baffle plate 10 and the upper surface 2a of the roller case. 10 Backside vacant room C
Since air is suctioned and supplied to the empty space 4, wind noise etc. are not generated due to the rotation of the plane body 5, even though the baffle plate 10 is provided, and moreover, the rotation of the plane body 5 does not cause wind noise. As a large amount of air flows toward the discharge port 8 side as it rotates, the blowing force becomes strong.
The cutting waste flows smoothly against the flow of air around the plane body 5, and the cutting waste is discharged without scattering near the cavity opening 4b or the discharge port 8. The discharge function can be greatly improved compared to the conventional example, and since the structure is extremely simple, it can be manufactured at low cost.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional side view of the main parts of a conventional wood planer; FIG. 2 is a longitudinal sectional side view of the main parts of a wood planer according to the present invention; FIG. is a left side view of the same device in FIG. 2; 2...Roller case, 3,3'...Feed roller,
4... Vacancy, 4c... Opening edge of the void, 5... Planer body, 10
...baffle plate, 12...ventilation path.

Claims (1)

[Scope of utility model registration request] A baffle plate 10 is placed on the roller case 2 at the rear in the rotational direction of the planer body 5 which is rotatably supported in the space 4 between the feed rollers 3 and 3'.
A ventilation passage 1 is provided between the baffle plate and the roller case.
2 is provided to enable communication between the inside of the space and the outside. A cutting waste discharge device for a wood planer.