JPS597047Y2 - Planer blade height adjustment device on the planer stand - Google Patents

Description

[Detailed description of the invention] The present invention relates to a blade height adjustment device that finely adjusts the height of the cutting edge of the plane blade in a super finishing planer for woodworking to moderate and uniformize the cutting thickness of the workpiece. A horizontal fitting groove is provided in the moving tool that connects the solid body of the back blade and the back blade, and the eccentric shaft portion of the rotating shaft is fitted into the groove, and the height of the cutting edge of the planer blade is finely adjusted by rotating the rotating shaft. At the same time, the rotary shaft is supported by two spherical bearings on the left and right, and the outer ring of one of the spherical bearings is arranged to rotate eccentrically with respect to the axis of the rotary shaft, and the outer ring is rotated by rotation of a blade edge inclination adjustment knob. It is characterized in that it rotates and then tilts about the axis of the rotating shaft using the other spherical bearing as a fulcrum, thereby adjusting the left and right protruding length of the cutting edge.

The height of the cutting edge of conventional super-finish planing machines could only be adjusted so that the entire cutting edge of the planing blade protruded equally, so it was possible to equalize the protruding length of the left and right sides of the cutting edge while the planing stand was attached to the planing board. I wasn't able to make any fine adjustments to make it work.

For this reason, it is necessary to confirm the difference in the protrusion length between the left and right sides by trial cutting, remove the plane stand from the superfinishing plane machine, and readjust the left and right edges of the plane blade to the same height using a knife push-up screw, etc. Fine adjustment work requires skill, and trial cutting and readjustment must be repeated many times, which significantly reduces work efficiency.

The present invention corrects the drawbacks of the conventional device, and makes it possible to easily equalize the protruding length of the left and right blade edges by rotating the blade edge adjustment knob when the plane stand is attached.

An embodiment of the present invention will be described with reference to the accompanying drawings.

Reference numeral 1 denotes a planer stand that is inserted in a drawer shape into the surface plate of a super-finishing planer for woodworking so that its upper surface matches the upper surface of the surface plate, and is placed on the support base plate 2 on the front side in the material feeding direction. An attached blade opening 3 is provided, a sloped surface 4 for attaching the plane blade is provided corresponding to the blade opening 3, and a lateral groove 5 in the left and right direction completely parallel to the blade opening 3 is formed at the lower end of the sloped surface 4. do.

A moving tool 6 having a concave cross section that allows fine movement of the inclined surface 4 in the direction of inclination is provided in the horizontal groove 5, and a cutter moving tool 12 is fixed to the moving tool 6 with a screw 11.

The moving tool 6 is provided with a fitting groove 7 parallel to the horizontal groove 5, and the fitting groove 7 is provided with an eccentric shaft portion of a rotating shaft 8 that penetrates the planer stand 1 in the left-right direction and is freely rotatably supported within the horizontal groove 5. 9 are tightly fitted together, and the rotary shaft 8 is provided with rotary operation handles 10 and 10 exposed on both sides of the plane head 1.

Further, several knife push-up screws 13 parallel to the direction of inclination of the inclined surface 4 are screwed into the knife moving tool 12.

A solid body of a plane blade 14 and a back blade 15 is attached to the inclined surface 4.

The solid body is connected by firmly screwing into the planer blade 14 a bolt 17 which is passed through in contact with the edge of a long hole 16 provided in the back blade 15 (FIG. 3).

Also, the length of the plane blade 14 {spring support washer at L18
19, and screw it onto the bottom of the inclined surface 4 of the blade attachment bolt 20 passed through the washer 19 and the long hole 18, and place the plane blade 14 tightly against the inclined surface 4 between the head of the bolt 20 and the washer 19. Multiply the spring 21.

The consolidated body of the planer blade 14 and the back blade 15 can be forced to move in the vertical direction along the inclined surface 4.

As shown in FIG. 3, the blade moving tool 12 places the edge of the back hole of a long hole 22 provided in the back blade 15, and inserts the screw 2 passed through the long hole 22.
3, the back blade 15 is fixed to the moving tool 12.

As shown in FIG. 3, the blade push-up screw 13 is provided with a flange-shaped retaining piece 25 at its tip, and the engaging piece 25 is fitted into the lateral groove 24 on the back surface of the back blade 15.

As shown in FIG. 4, the moving tool 6 is provided with a guide hole 26 facing forward and upward on the rear side, and a moving guide pin 27 protruding from the rear groove wall of the lateral groove 5 is fitted into the moving tool 6, thereby moving the moving tool 6 in the lateral direction. To be restrained from moving.

As shown in FIG. 2, the rotating shaft 8 is connected to each inner ring 30.29 of a spherical bearing 28. It is supported through the center of 34.

The outer ring 31 of the spherical bearing 28 is configured to rotate eccentrically with respect to the axis of the rotating shaft 8. Specifically, the outer ring 31 is attached to a cutting edge adjustment knob 33 whose outer periphery is eccentric with respect to the axis. The outer periphery of the knob 33 is fitted into a circular hole 41 provided in the plane stand 1 so that it can rotate freely.

The knob 33 is provided with a hollow hole 32 into which one side of the rotation shaft 8 is loosely inserted, and the rotation operation handle 10 is attached to the end thereof.

The inner outer circumference of the blade edge adjustment knob 33 is also eccentric with respect to the axis of the rotating shaft 8, and a large number of engagement grooves 36 in the axial direction are provided on the outer circumference. to prevent accidental rotation.

The outer ring 35 of the spherical bearing 29 has a horizontal groove 5 through which the rotating shaft 8 loosely passes.
Support within.

(Figs. 2 and 5) In the above embodiment, the screw 23 is slightly loosened, and the retaining piece 25 is pushed by operating the blade push-up screw 13 to remove the plane blade 1.
4 and the solid body of the back blade 15, thereby pushing up the plane blade 1.
4 to align with the blade mouth 3, thereby roughly correcting the horizontal inclination, tighten the screw 23 again, and then rotate the rotary shaft 8 by rotating the rotary operation handle 10. Since the fitted eccentric shaft portion 9 rotates, the moving tool 6 moves slightly back and forth depending on the amount of eccentricity.
The back blade 15 and plane blade 14 fixed to the blade moving tool 12 are slightly moved back and forth along the inclined surface 4, and the protruding length of the blade edge is adjusted.

Furthermore, if there is a slight difference in the protruding length of the cutting edge on both the left and right sides, the cutting edge inclination adjustment knob 33 is rotated.

At that time, the outer ring 31 of the spherical bearing 28 fixed in the hollow hole 32 of the knob 33 rotates, and since the inner ring 30 and the outer ring 31 are eccentric, the amount of eccentricity causes the inner ring 30 to be orthogonal to the axis. Move slightly in the direction.

For this reason, in the right spherical bearing 29, the inner ring 34 and outer ring 35 are concentric, and no movement of the inner ring occurs, so the rotating shaft 8 uses the center of the inner ring 34 of the spherical bearing 29 as a fulcrum, and tilts slightly due to the slight movement of the inner ring 30. , the moving tool 6 and the blade moving tool 12 to which the rotating shaft 8 is fitted also follow, and the back blade 15 and plane blade 14 are tilted, so that the protruding lengths of the cutting edge on both the left and right sides are adjusted uniformly.

As clarified by the description of the above embodiments, the present invention has a moving tool 6 in which a solid body of a plane blade 14 and a back blade 15 are connected in a horizontal groove 5 recessed in a plane blade mounting slope 4 of a plane stand 1. established,
The eccentric shaft part 9 of the rotary shaft 8 is fitted into the fitting groove 7 provided in the left and right direction, and the cutting edge is moved back and forth uniformly by rotating the rotary operation handle 10 provided at the end of the rotary shaft 8. A spherical bearing 28 for fine adjustment and rotatably supporting the rotating shaft 8. Inner ring 30 of one bearing 28 of 29
Due to the eccentricity between the outer ring 31 and the outer ring 31, the blade edge inclination adjustment knob 33, which is fixed to the outer ring 31, is rotated to tilt the blade edge to adjust and equalize the slight difference in protrusion between the left and right sides of the blade edge.
It is possible to precisely adjust the blade height with the plane stand 1 mounted on the plane board, and has the excellent effect of easily achieving an appropriate protruding state of the blade edge.

[Brief explanation of drawings]

The attached drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway back view of the planer stand 1, Fig. 2 is an enlarged back view of the same with the central part omitted, and Fig. 3 is a view taken along line A-A in Fig. 1. Enlarged cross-sectional view, Figure 4 is same B
FIG. 5 is an enlarged sectional view taken along the line C-C. 1 → Planer stand, 4 → Inclined surface, 6 → Moving tool, 7 → Fitting groove, 8 →
Rotating shaft, 9 → Eccentric shaft part, 10 → Rotating operation handle, 14
→ Planer blade, 15 → Back blade, 28, 29 → Spherical bearing, 30
, 34 → inner ring, 31, 35 → outer ring, 33 → blade edge inclination adjustment knob.

Claims (1)

[Scope of utility model registration request] A moving tool 6 is provided on the plane blade mounting slope 4 of the plane stand 1, and a moving tool 6 is provided on the plane blade mounting slope 4 to enable the movement of the slope 4 in the slope direction. Blade 1
5 is connected to the moving tool 6, and the moving tool 6 is further provided with a fitting groove 7 in the left-right direction, and an eccentric shaft portion 9 provided on a rotating shaft 8 passing through the planer stand 1 in the left-right direction is connected to the moving tool 6. Spherical bearings 28 are passed through the fitting groove 7 and are provided on both left and right sides of the horizontal groove 5 in which the rotating shaft 8 is provided on the inclined surface 4. At the same time, an outer ring 31 of one spherical bearing 28 is provided to rotate eccentrically with respect to the axis of the rotating shaft 8, and a blade edge inclination adjustment knob 33 is fixed to the outer ring 31. A planer blade height adjustment device for a planer stand, characterized in that the rotating shaft 8 is tilted using the other spherical bearing 29 as a fulcrum.