JPS58212902A - Back edge of plane edge in superfinishing planer - 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] This invention relates to the back edge of a planer blade in an abrasive planer that is separate from the blade position where the cutting action is performed. The planer board is as shown in Figure 1. In the figure, 7 is a material feeding device. When the sharpness of the planer blade 3 of such a super-finish planer board deteriorates, it is replaced with a holding part 5 to which another polished planer blade 3 and back blade 4 are attached.

However, in general, the total cutting length of the planer blade of this persimmon super-finishing machine to obtain a good finished surface after polishing is about 50mm.
It is 〃z. This means that the planer blade must be replaced very frequently. It is necessary to stop the machine to change the planer blade, and doing this frequently causes problems that make it difficult to incorporate Vrc into the production line, and the finished surface immediately after polishing the planer blade and the finished surface after it has been used to some extent. There was a difference between the two, and there were problems such as uneven finishing of the workpiece.

Therefore, the present inventor proposed an extremely efficient super-finishing planer that can maintain good sharpness by attaching a planer blade to a super-finishing planer and using it for super-finishing cutting as well as re-sharpening. .

Some super finishing planer has a smell at the blade position of the table.
The planer blade, which is held in a state where it can cut, has its blade width
The planer blade is provided so as to be movable in the direction, and is configured to polish the planer blade at a moving position that is away from the position of the blade opening. Since the planer blade has a movable structure, a metal plate that is relatively easy to sharpen is glued to the back of the planer blade, and the back blade is also scraped by the amount that the planer blade is polished. It had become. It has been found that adhesion of such a back blade to a planer blade is very troublesome, and it is also expensive. It has also been found that when the back blade is scraped off, the sharp plane blade may be damaged.

This invention solves the above problem by improving the back edge of the plane blade in a super-finish planer machine configured to perform super-finish cutting while the plane blade is attached to the super-finish planer machine, and also to perform re-sharpening. The purpose is to

The main feature of this invention is that in the above-mentioned super-finishing double planer, the back blade presses the cutting edge into contact with a position close to the cutting edge on the back side of the planer blade at the cutting edge position. The reason is that it is held on the fixed side of the planer board so as to form a predetermined angle with the planer blade.

With this configuration, there is no need to glue the back blade to the planer blade, and there is no need to remove the polished portion of the planer blade. There is no need to scrape it off, so there is no need to worry about damaging the planer blade. The fact that the planer blade and the back blade form a predetermined angle means that the acting force from the planer shavings generated during cutting will not cause the cutting edge of the back blade to float up from the back surface of the planer blade. This prevents debris from entering between the planer blade and the back blade. As a result, even if the back blade is held on the fixed side with respect to the moving planer blade, good cutting is always performed. Moreover, this means that the pressing force from the back blade side that is brought into pressurized contact with the planer blade does not have to be so large, which also has the effect that the movement resistance of the planer blade does not increase unnecessarily. Furthermore, by making it possible to slightly adjust the holding state of the back blade in the direction of the cutting edge along the back side of the planer blade, the back blade can be adjusted according to the finishing allowance, that is, the thickness of the planer scraps. This allows for good cutting.

Embodiments of the present invention will be described below with reference to the drawings.

Figures 2 and 3 schematically show the configuration of a super-finishing planer machine, which includes a table 10, a material feeding device]l, a planer blade 12, a planer blade holder]3, a reciprocating drive device 14, a polishing device 15, etc. .

The table 10 has a cutting edge 20. The blade opening 2o is open over the entire width of the tape) V 1.0, so that the cutting edge of the planer blade 12 protrudes from the top surface of the table. A planer blade holding portion 13, which will be described later, is provided below the blade mouth 20. In the figure, 10a is the table body, 10τ]
are auxiliary tables, both of which are formed integrally with the table 10.

The material feeding device 11 is composed of running endless rubber bells 1 facing two sides of the table 10, similar to a normal superfinishing planer.

The planer blade 12 is elongated in the cutting direction, and its length is slightly longer than twice the width of the blade opening 20.

The planer blade holding part 13 is attached to a fixed base 22 and a first movable base 2.
3. The first movable base 23 is movably placed on an inclined fixed base 22 located below the rear half of the table 10, which is composed of a second movable base 24 and the like.

Then, take the π planer blade 12 on the first movable base 23.
A curved second movable base 24 is mounted so as to be able to reciprocate from side to side along the cutting edge 20. The first movable base 23 is moved by a lifting drive device 26, and the second movable base 24 is reciprocated by a reciprocating drive device 14. The rear end of the planer blade 12 is fixed to the second movable base 24 with screws 41, and the middle position near the tip is shown in FIG.
As shown in FIG.
It is. In the same figure, 45 is a wear-resistant receiving plate for the blade [
One edge 42 has a fixed δ angle. 46 is a wear-resistant plate, 47
is a suppression plate, which is fixed integrally and attached to the support beam 44, and has a suppression effect on the planer blade 12 by a nuplink or an air pressurizing device (not shown). In this way, the planer blade 12 completely held in the planer blade holding part 13 is at the blade opening 20.
Although it can reciprocate in the left and right directions along K and can move up and down along the inclination, it is positioned at the cutting edge in such a way that it does not interfere with superfinish cutting.

The reciprocating drive device 14 includes a feed screw 34 whose both ends are supported on the lower surface of the auxiliary table lOb, a nut 35 screwed onto the feed screw 34, and a reciprocating drive arm 33N that is integrally formed with the nut 35. Motor 3 for driving forward and reverse rotation of screws
It consists of 8 mag. With this configuration, the irrigation blade 12 attached to the second movable base 24 moves back and forth.

The polishing devices 15 are provided at fixed positions on the auxiliary table 10b close to the positions on both sides of the blade mouth 20, and the grindstone 39 is rotated at that position to polish the moving planer blade 12. It has become.

A back blade 50 as shown in FIG. 6 is provided in contrast to the planer blade 12 in the super-finish planer machine constructed as described above. The back blade 50 is made of a steel plate that has been heat-treated to the extent that it does not damage the planer blade 12, and is formed to have a width corresponding to the width of one table 10. In the figure, 50a is a cutting edge, 51 is a mounting screw insertion hole, and 52 is a notch 153 for arranging a pressure spring, which is a pressure spring engagement hole. As shown in FIGS. 4 and 5, this back blade 50 has a pressure spring 5 attached to a support shaft 54.
5 with screws 56, and its support shaft 54 is supported at both ends by the support portion 43 via bearing blocks 57.

The support shaft 54 is longer than the width of the back blade 50 by the portions 58 that fit into the bearing blocks 57Vrc at both ends, and the area between the two end portions 58 is a flat surface 59 by cutting out a part of the r circumferential surface as shown in the figure. The base end of the back blade 50 is attached to the flat surface 59 with a screw 56.

The pressure spring 55 is a coil spring, and has engaging portions 60 and 61 in which spring wire rods at both ends thereof are linearly extended in the tangential direction.
have. The inner hole of the coil is fitted and placed in advance at the position of the support shaft 54 corresponding to the position of the notch 52 of the back blade 50, and the pressure spring 55 is pressed by the knob to which the back blade 50 is attached.
are each held in place.

As shown in the figure, when assembled to the planer board, the first retaining part 60 engages with the support beam 44vc, and the first engaging part 61 has its tip bent one time and engages with the pressure spring engaging hole 53. are doing. In this state, the pressure spring 55 is elastically strained, and its reaction force exerts a pressure action on the back blade 50 in the counterclockwise direction in FIG. 4'. Therefore, the back blade 50 has its cutting edge 50a.
is brought into pressure contact with the back surface of the planer blade 12.

The bearing block 57 is fitted into the both end portions 58 of the first support shaft 54, and the bearing block holding portion 62 formed inside both the support portions 43 is parallel to the back surface of the planer blade 12. The cutting edge 12aK can be held so as to be adjustable in movement only in 100-degree directions. 61a and 62b in FIG. 5 are block holding grooves. Bolts 63 and 64 are locked so as to restrain the movement of this bearing block 57 in the front and back.
65 and 66 are installed. The bolt 63 is provided on a member 67 fixed to the support portion 63, and the bolt 64 is provided on the support beam 44.

The shape of the cutting edge of the above-mentioned back blade 50, the take-up angle, etc. are as shown in FIG. In the figure, θ1 is the angle at which the planer blade 12 is attached to the table top surface, approximately 35°Xθ2
The attachment to the planer blade 12 is at an angle of approximately 35°, θ
3 is the planer blade 1 of the minute cut portion 68 on the cutting edge of the back blade 50?
The nominal angle is approximately 60°. Further, the dimension d + of the minute cut portion 68 is approximately 0.51 Wm. In addition, d2 in the figure corresponds to the cutting allowance, that is, 19. It is a dimension that can be adjusted according to the thickness of the planer shavings, and if the thickness 8 of the planer scrap is large, the adjustment will be large, and if it is small, the adjustment will be small.

The super-finishing planer equipped with the back blade 50 configured in this manner is capable of transporting wood along the soil surface vrc of the table 10 using the material feeding device 11 as in the case of conventional super-finishing planing machines of this type. Cut with a plane blade 12. Planer blade 1
2 is reciprocated left and right by a reciprocating drive device 14, and while the grindstone 39 is rotating at an appropriately adjusted position, the planer blade 12 cuts the wood, although not by the λ elevating drive device 26. When cutting, the blade bends slightly due to the cutting resistance, but the adjustment of the blade edge position due to the bending is 1 bolt 63.6
This is possible by adjusting the movement of the bearing block 57 along the 1-block holding grooves 62a and 62b by operating the 4% opening nuts 65 and 66. In this adjustment, the back blade 5o is moved in and out parallel to the back surface of the planer blade 12, so the angle θ3 does not change at all.

Therefore, the back edge 50 of the planer blade in this super-finishing planer is not attached to the moving planer blade 12, but instead performs its original role, namely, preventing hangnails caused by the cutting edge 12a biting into the wood too much. can be achieved with certainty. This makes the production of the movable planer blade and its back blade extremely easy and reduces costs. Further, the adjustment of the position of the cutting edge of the back blade 50 does not involve cutting and can be taken in and out as it is, so there is no wear and tear, which is extremely convenient, and there is no risk of damaging the planer blade 12.

In the above embodiment, the structure for adjusting the position of the cutting edge of the back blade 50 is based on the bolt 63, 64 and the rotornant 65, 66. The bolt 63 side may be left as it is or have a cam pressing structure so that adjustment can be performed with only one side, or the bearing block 5 may be adjusted separately.
It is also possible to provide a feed screw for '7Vc.

As described above, according to the present invention, it is possible to provide an improved back blade that is extremely suitable for a moving planer blade.

[Brief explanation of drawings]

Fig. 1 is a partial vertical sectional side view showing the general structure of a conventional super finishing planer, Fig. 2 is a schematic side view of a super fL J 2ge planing machine according to an embodiment of the present invention, and Fig. 3 is a partially broken view of the same part. surface drawing,
Fig. 4 is an enlarged cross-sectional view taken along line A-A in Fig. 3, Fig. 5 is a partially cutaway view taken in the direction of the arrow B-B in Fig. 4, and Fig. 6 is a partially omitted enlarged view of the back blade of the same example. 7 are partially enlarged side views showing the attachment relationship between the planer blade and the back blade in the same embodiment. 10...Table, 10a...Table body, 10
b... Auxiliary table 111... Material feeding device 112...
・Planer blade, 13... Planer blade holding part ・14... Reciprocating drive device 115... Polishing device, 20... Blade mouth 14
3...Support part\44...Support beam/47...til
l Pressure plate・50...back blade・50a...blade edge 154...
- Support shaft 155...pressure spring, 57...bearing block 162...bearing block holding part. Patent applicant: Morisaki Housing Industry Co., Ltd. Agent: Tetsu Shimizu and two others τ 2 Figure 111.3 2θ″
X 3 diagram

Claims (2)

[Claims] (1) A planer blade, which is held in a state capable of cutting at the cutting edge position of the table, is provided so as to be movable in the blade width direction VC, and at a position where the blade edge is moved from 1 to 1 to 1, (1) In a super-finishing planer configured to polish a planer blade, the blade edge is placed in pressurized contact with a position close to the glue blade on the back side of the planer blade located at the blade opening position, and at a predetermined angle with the planer blade. The back edge of a planer blade is held on the fixed side so as to form a shape. (2) The planer blade in the super-finishing planer machine according to claim (1), characterized in that the holding state of the top filler back blade can be finely adjusted in the front and back direction by being placed on the back surface of the planer blade. The back blade.