JPH031214Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to the improvement of a super-finishing planer for woodworking with replaceable blades, which eliminates the need for man-hours to replace disposable blades. It has a field of application that makes it easier.

(Prior technology) A super-finishing plane machine that uses disposable blades has already been developed, but the blades must be replaced by loosening the blade holding plate, and the number of replacements is limited to several times a day. Since it is necessary, the number of man-hours required for replacement must be minimized and made easy. However, conventional super-finishing planers for woodworking with replaceable blades do not have a replacement blade that can be replaced quickly.

(Problems to be Solved by the Invention) The problem to be solved by the present invention is to be able to replace the replaceable blades at high speed as described in the previous section.

(Means for solving the problem) The present invention aims to solve the problem mentioned in the previous section.
A groove 5 is provided which intersects with the groove 5 and is open on both sides in the front and back direction, a cutting edge 7 is attached to the front surface of the groove 5, a shelf-shaped support plate 6 is provided to the rear surface of the groove 5, and an upper surface 13 is provided on the support plate 6.
is at the same height as the material feeding surface 4, the front surface facing the blade opening 7 is made into an inclined surface 14, and a fitting groove 19 into which the replaceable blade a is fitted is provided at the upper end of the inclined surface 14. A blade support plate 12 with a replaceable blade holding plate 15 for holding down the blade a attached to the inclined surface 14 is placed so as to be movable in the release direction of the groove 5, and the support plate 6 is placed on the lower surface of the blade support plate 12. An engagement groove 20 is provided that is open to the upper surface and both sides in the front and back direction, and has a narrowed lower end, and the support plate 6 is provided with a threaded shaft 24 that protrudes into the engagement groove 20 from the lower surface, An engagement groove 2 whose lower end is narrowed as the screw shaft 24 moves downward in a portion of the screw shaft 24 that protrudes into the engagement groove 20.
0, and the guide/treading piece 25 is engaged with the threaded shaft 2, and the guide/treading piece 25 is engaged with the threaded shaft 2 and separated from the engagement of the engagement groove 20 with the upward movement.
This relates to a replaceable blade type super-finishing plane machine for woodworking, characterized in that the replaceable blade a is replaced by lifting the blade support plate 12 in the front-back direction of the groove 5 by lifting the screw shaft 24.
By rotating in one direction, the blade support plate 12 is tightened onto the support plate 6 in the groove 5 via the guide/pressure plate to fix the replaceable blade, or alternatively, by rotating the screw shaft 24 in the other direction, the guide/pressure plate 25 is tightened. The knife support plate is raised within the engagement groove 20 to escape from the open surface of the groove 5, and this escape facilitates replacement of the replaceable blade.

In the present invention, the front-back or front-back direction refers to the front side and the back side that intersect the material feeding direction. Further, the front surface and the rear surface refer to the front surface and the rear surface in the material feeding direction.

(Example) The present invention can be applied only to a material feeding table that is provided with a groove that intersects with the material feeding direction and allows both ends to be left open, and is a type in which a knife support plate equipped with a replaceable blade is attached to a knife stock. This would only make the structure even more complicated, so it is technically meaningless.

As shown in FIG. 1, the material feeding table 3 has a known structure attached to the lower frame 1 so that it can be raised and lowered by a handle 2.
As shown in FIG. 5, a groove 5 that intersects with the material feeding direction is opened in the cross direction on the material feeding surface 4 of the material feeding surface 4 to open the front and rear sides, and a support plate 6 is fed in the form of a shelf inside the groove 5. Projects from the rear surface in the direction of the material. The groove 5 does not need to be perpendicular to the material feeding direction, but can be configured to cross diagonally and perform diagonal cutting with the replaceable blade a.

A cutting edge 7 that almost matches the height of the material feeding surface 4 is attached to the front surface of the groove 5 in the material feeding direction, and the lower surface of the cutting edge 7 is an inclined surface 8 that intersects with the material feeding direction, and the cutting edge 7 and support A wedge piece 10 is inserted between the surface 9 and the surface 9. The wedge piece 10 is screwed onto a screw 11 whose head is exposed at the front or rear of the material feeding table 3, and by rotating the screw 11, the wedge piece 10 is inserted into the wedge piece 10.
The blade moves forward and backward in a manner that intersects with the material feeding direction, thereby making it possible to finely adjust the elevation of the cutting edge 7.

Reference numeral 12 denotes a cutter support plate which is fitted into the groove 5 and whose lower surface is supported by the support plate 6.The upper surface 13 is at the same height as the material feeding surface 4, and the corresponding tip surface and support are placed at a small distance from the cutting edge 7. A vertically inclined surface 14 is provided between the plate 6 and a replaceable blade holding plate 15, which has a vertically elongated hole 16 formed in the inclined surface, is attached with a tightening screw 17 passed through the elongated hole 16, and the inclined surface 14 is attached. Tightening screw 17
Insert the push spring 18 in a higher position and replace the blade holding plate 1.
5, and when the tightening screw 17 is slightly loosened, the presser plate 15 is pressed by the spring 18. The inclined surface 14 of the blade support plate 12 has a groove 1 in which a spare blade a is fitted.
9 is provided, and the replaceable blade a is sandwiched and fixed by a replaceable blade holding plate 15.

The blade support plate 12 is provided with an inverted trapezoidal engagement groove 20 with a narrowed lower end on the lower surface in contact with the support plate 6, with the lower surface and front and rear sides open. The engagement groove 20 may have a C-shaped cross section with an open bottom surface.

From the bottom surface of the support plate 6, the rotary shaft 22 is passed through the through hole 21 and a ring 23 is fitted to enable only rotation.
A guide and treading piece 25 having an inverted trapezoidal cross section is screwed onto the threaded shaft 24 within the engagement groove 20.

(Function of the invention) The present invention has a structure that has been made clearer through the explanation of the embodiments, and the guiding/pressing piece 25 is moved within the engagement groove 20 of the blade support plate 12 by rotating the rotating shaft 22 and the screw shaft 24 in one direction. When pulled down, the blade support plate 12 comes into pressure contact with the support plate 6 and is fixed. By rotating the rotation shaft 22 and the screw shaft 24 in the other direction, the guide/tread pressure piece 25 is slightly raised inside the engagement groove 10 , the fixation is loosened, and the blade support plate 12 is guided and pressed on the support plate 6 . The material feeding table 3 can be extracted forward and backward using the piece 25 as a guide, and after removing the blade support plate 12, replace the spare blade a and use the guide/treading piece 25 as a guide. The cutter support plate 12 is fixed on the support plate 6 by rotating the rotary shaft 22 and the screw shaft 24 in one direction.

(Effects of the invention) The present invention has the structure and operation detailed above,
Rotating the blade support plate 12, which holds the spare blade a between it and the blade holding plate 15, to remove it from the front and back of the material feeding table 3, fit it into the normal position, and fix it on the support plate 6. The reversible rotation of the shaft 22 and screw shaft 24 makes it extremely easy to rotate the material feeding table 3.
This has the effect that the replacement of the replaceable blade a outside the blade and the re-fixing after replacement can be performed without causing any misalignment due to the guiding action of the guiding and pressing piece 25.

[Brief explanation of the drawing]

Figure 1 is a side view of a replaceable blade type super-finishing planer for woodworking.
Fig. 2 is a partially cutaway side view of the main part, Fig. 3 is a plan view, Fig. 4 is a front view cut along line A-A in Fig. 2, and Fig. 5 is the position of the groove 5 provided in the material feeding table 3. FIG. 3... Material feeding table, 4... Material feeding surface, 5...
Groove, 6...Support plate, 7...Blade mouth, 12...Blade support plate, 13...Top surface, 14...Slope surface, 15...
Spare blade holding plate, 19... fitting groove, 20... engaging groove,
22...Rotating shaft, 23...Ring, 24...Screw shaft, 25...Guiding/pressing piece, a...Replaceable blade.

Claims (1)

[Scope of utility model registration request] A groove 5 that intersects with the material feeding surface 4 and is open on both sides in the front and back direction is provided in the material feeding table 3, a cutting edge 7 is attached to the front surface of the groove 5, and a shelf-shaped support plate 6 is provided to the rear surface of the groove 5 to support the material. On the plate 6, an upper surface 13 is made to be at the same height as the material feeding surface 4, and the front surface facing the cutting edge 7 is an inclined surface 14, and a fitting groove 19 is provided at the upper end of the inclined surface 14 in which a replacement blade a is fitted. Furthermore, a blade support plate 12 with a blade holding plate 15 for holding down the blade a is mounted on the inclined surface 14 so as to be movable in the release direction of the groove 5, and the support plate 12 is mounted on the lower surface of the blade support plate 12. An engagement groove 20 is provided which is open to the upper surface of the plate 6, is open on both sides in the front and rear direction, and has a narrowed lower end, and has a threaded shaft 24 that projects into the engagement groove 20 from the lower surface of the support plate 6. is provided in the portion of the screw shaft 24 that protrudes into the engagement groove 20, and as the screw shaft 24 moves downward, it engages with the engagement groove 20 whose lower end is narrowed, and as the screw shaft 24 moves upward, it is engaged with the engagement groove 20. A replaceable blade type super finishing for woodworking characterized by screwing together a separating guide/pressing piece 25, raising the screw shaft 24, and ejecting the blade support plate 12 in the front and back direction of the groove 5 to replace the replaceable blade a. Planer board.