JPS6156861A - Circular saw correction polishing machine - Google Patents

Abstract

PURPOSE:To enable a machine to perform efficiently the automatic correction polishing of a circular saw, by mounting the circular saw of eight-blade and four-blade to be changed by a slide adjusting device and eccentrically turning a circular saw turning unit after it is positioned by controlling a handle of turning guide panel having eight stop parts. CONSTITUTION:When a circular saw 14 to be correctively polished contains eight blades, a polishing device 2 is set to a position X, and the mounting angle of a grinder 3 is adjusted to 45 deg.. Next, a slide adjusting device 31 by its longitudinal operation retreats the whole unit of a sliding bed 7 to the front side simultaneously to be stopped in a position B by turning a control handle 20, directly connecting a turning guide panel 12 with a mounting shaft 11 in the eccentric position with a supporting shaft 8 of a circular saw turning unit 9, and if the circular saw 14 is directly connected with the mounting shaft 11 so that a blade 15 may align to a stop part 13, the grinder 3 and a point of the blade 15 of the circular saw 14 are set to a position of alignment. Next the slide adjusting device 31, after a longitudinal slide length is adjusted by turning a turning screw rod 33 to be adjusted, retreats the sliding bed 7 again fully to the front side, and then if the sliding bed 7 is moved reciprocating by rotating the grinder 3 at a high speed, the blade 15 can be efficiently further automatically regenerated to be polished.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention allows a 4-blade or 8-blade circular saw blade that has become worn due to use and has poor sharpness to be easily corrected and polished to a blade with good sharpness. The present invention also relates to a circular saw correction and polishing machine that can correct and polish the external shape of an eight-blade circular saw into a well-balanced shape using the same machine.

Conventional technology Conventionally, as shown in Fig. 6, a circular saw a is rotated and has a plurality of blades having an acute angle at the outer circumferential edge C, which are arranged around the circumference at equal intervals.
′! Agricultural work in which planted grasses, stem culms, or other agricultural products are efficiently cut using the high-speed rotating action of a circular saw A by attaching it to a 'III d is commonly performed and well-known, and the above-mentioned agricultural work is When the cutting edge of the circular saw A collides with the object to be cut, clods of earth, stones, etc., the outer peripheral edge C of the blade 6 is worn round within a short period of time, resulting in a significant decrease in sharpness. .

Therefore, when the cutting edge of the circular saw a is worn out and its sharpness has deteriorated as described above, it cannot be used again unless the outer peripheral edge C of the cutting edge is polished to make it as acute as the original shape. Can not.

Therefore, when the blade of the circular saw a is worn into a round shape as described above, the worn surface of the circular saw a can be fixed using a commercially available correction ruler e (utility model registration No. 34576) as shown in Figure 7. On the top, draw a new shape of a circular saw a' with the outer peripheral end C' of the blade b' having an acute angle and the length of the blade having a predetermined dimension using a scribing needle f (see the chain line in Figure 6). The circular saw a was corrected and polished according to the drawing while being applied to a grinder, and a recycled circular saw a' was obtained so that it could be used again.

Problems to be Solved by the Invention Therefore, in order to carry out the conventional circular saw correction and polishing work, it is necessary to perform the troublesome drawing work of drawing a new accurate circular saw shape using a correction ruler on the worn surface of the circular saw. However, it is not possible to obtain a re-polished circular saw without manually re-polishing the outer periphery of the worn circular saw according to the drawing, which significantly reduces the work efficiency and requires a considerable amount of time for re-polishing. Of course, due to the necessity of drawing work, considerable skill is required, and it is difficult for amateurs to draw the drawings.The drawn circular saw figures are drawn by hand, so it is necessary to use a circular saw that is worn out. As a result, the degree of wear and tear on the circular saw increases.

In addition, all of the outer circumferential polishing work is done manually by the operator, so the outer shape of the circular saw can be finished and polished to an accurate shape. Sometimes the circular saw rattles and makes abnormal noise.
In addition to not being able to efficiently achieve stable cutting work, there are drawbacks such as the fact that the entire blade is polished at once with a grinder during sharpening work, which causes the blade to change in quality due to frictional heat, resulting in extremely poor sharpness. occured.

Therefore, the present invention completely eliminates the conventional drawing work and manual peripheral polishing work, and places an 8-blade or 4-blade circular saw in a position that is compatible with the 8-blade or 4-blade circular saw. The blade of the circular saw can be adjusted in the front and rear directions relative to the grinder, and the blade of the circular saw can be rotated 45 degrees sequentially in one direction while being eccentrically rotated by a single back and forth rotation operation of the operating handle. When set, the blade of an 8-blade or 4-blade circular saw can be corrected and polished by simply moving the circular saw back and forth, and the blade of a circular saw with 8 blades can be polished by simply moving the circular saw back and forth. Normal shape with well-balanced outer circumference (
This makes it easy to carry out the repair and polishing of a circular saw, and also enables the circular saw repair and polishing work to be accomplished safely and smoothly, so that anyone can repair a worn circular saw easily and efficiently. This is an attempt to provide a circular saw correction polishing machine that can easily perform polishing.

Means for Solving the Problems Therefore, the technical problem of the present invention is to provide a method for easily and efficiently operating a circular saw whose blades have been worn due to use, even if the number of blades is 4 or 8. The goal is to regenerate a circular saw with the best cutting quality while maintaining a well-balanced overall appearance.

In order to solve this technical problem, we specifically designed the structure to include a sliding base on the mounting base that can adjust the sliding length in the front and back direction using a sliding adjustment device, and a two-stage mounting position for the sliding base. A polishing device that can be changed is installed oppositely, and the sliding table is replaced with a rotary guide plate with 8 locking parts on the periphery and a circular saw with 8 or 4 blades on the periphery, respectively. The circular saw rotating body, which has a freely attached mounting shaft hanging loosely, moves the operating knob back and forth (,
The circular saw is arranged so that it can be rotated sequentially by 45 degrees in one direction with one rotation operation, and the rotation guide plate has a predetermined play between it and the locking part when the circular saw rotating body starts to rotate again. The circular saw is rotated eccentrically around the support shaft until the restoring rotation is completed while the circular saw is kept locked by the stoppers arranged at intervals, and the grinder of the polishing bag and the outer edge of the blade of the circular saw are removed. In the circular saw correction and grinding machine characterized in that the circular saw is eccentrically moved to a position where the A circular saw correction and polishing machine characterized in that a transparent safety cover is provided with a transparent safety cover that is hinged to the installed supporting metal fittings so as to be able to freely vibrate, and in the thing as claimed in claim 1, substantially the front half of the sliding table. This circular saw correction and polishing machine is characterized in that a dustproof plate whose periphery extends outward from the sliding table is removably attached to the upper surface of the part.

Function The above technical means works as follows (see Figures 1 to 7).
(see figure). That is, the circular saw 14 consisting of 8 blades, whose outer peripheral ends 19 of the 8 blades 15 have been worn out and whose sharpness has significantly decreased due to agricultural work of cutting grass, stem culms, or other agricultural products, is corrected and polished. , when you want to use it again,
First, when the number of blades of the circular saw 14 to be corrected and polished is eight, the polishing device 2 is firmly installed at the X position on the mounting base 1, and the grinder 3 is adjusted so that the installation angle is 45 degrees. On the other hand, by adjusting the sliding adjustment device 310 back and forth, the entire slide table T is moved back completely to the front (at the same time, the handle 20 is rotated so that it collides with the stop device 27)
The support shaft 8 of the circular saw rotating body 9 is
A rotary guide disk 12 having locking portions 13 of the same number as the number of blades of a circular saw 14 arranged around the circumference at equal intervals is directly connected to the mounting shaft 11 which is loosely suspended at an eccentric position. The saw 14 is directly connected to the mounting shaft 11 while aligning the blade 15 of the circular saw 14 and the locking portion 13 with the positioning pointer 3γ. Grinder 3 and circular saw 1 can then be moved by the above positioning operation.
The cutting edge 15 of No. 4 is set at the same position.

Next, a dustproof plate 38 whose periphery extends outward from the slide table 1 is attached to the upper surface of the front half of the slide table T, and the slide table 7
The top surface of the front half of the glider 3 and the circular saw 14 are
The upper part of the sliding contact position is also covered with a vibrating transparent safety cover 40.

After the above-mentioned adjustment and installation operations are completed, first, adjust the rotation of the rotary screw 33 of the sliding adjustment device 31 to adjust the rotation of the circular saw 1.
After adjusting the longitudinal sliding length so that the slide table γ can move forward until the base end of the blade tip of No. 4 comes into contact with the outer peripheral edge of the stationary glider 3, move the slide table T all the way to the front side again. After retreating, the glider 3 is rotated at high speed, and then the sliding table 7 is moved back and forth by the sliding length, so that the blade 15 whose outer peripheral end 19 is rounded becomes an acute angle. It is repolished by glider 3.

When the re-polishing work for one blade of the circular saw 14 is completed by the above-mentioned front-rear sliding adjustment operation, move the slide table 7 fully backwards to the front side again, and move the operating knob 20 back from the 8 position to the A position. ” Rotate in the specified direction. However, when the operation knob 200 starts rotating counterclockwise, the rotation guide plate 1
2 has a predetermined play distance l between the locking portion 13 and the stopper 24, so that the operating knob 20 cannot be rotated around the support shaft 8 within the range of the play distance. It is rotated eccentrically in the counterclockwise direction, which is the same as the direction of movement, but - just the above play interval! When the range is exceeded, the locking part 1
3, the stopper 24 is locked to forcibly prevent the rotation guide plate 12 from rotating in the counterclockwise direction.
The operation handle 200 is eccentrically rotated about the mounting shaft 11 in the opposite direction to the rotating direction until it is rotated to the position, and the circular saw 14 is automatically rotated eccentrically around the mounting shaft 11 so that the directional peripheral end m19 matches the set position of the glider 3. Moved eccentrically. Next, in this state, if the operating knife 20 is rotated clockwise from the A position to the B position, the circular saw rotating body 12 will rotate 45 degrees clockwise about the support shaft 8. At the same time, the rotation guide plate 12, which is integrally attached to the support shaft 8 and the mounting shaft 11 which is loosely suspended at an eccentric position, is also engaged with the locking portion 13 from the beginning. The feed claw 21 is rotated clockwise by the same angle for the feed rotation operation, and the circular saw 14 is moved to the next blade 15.
is the position of the glider 3, so it is eccentrically rotated about the support shaft 8 by one frame.

Therefore, if the next blade 15 is rotated to the glider 3 position by the back and forth reciprocating operation of the operation knob 2001 times as described above, then the blade 15 will be rotated to the glider 3 position. By reciprocating the seven-motion table γ by the previously adjusted sliding length, the next blade 15 will also be repolished by the glider 3.

Therefore, when the number of blades of the circular saw 14 is 8, the above operation is performed 8 times.
By repeating the operation several times, it is possible to efficiently regrind the cutting edge of the eight-blade circular saw 15.

Also, if the blade edge re-polishing operation as described above is repeated several times, the outer periphery of the circular saw 14 will become deformed and become unbalanced during use, making it impossible to perform accurate cutting. (Of course, this will generate noise. In such a case, first rotate the operating/percent handle 20 to position A, then move the slide table 7 fully backwards toward you, and then ,
Sliding adjustment.

The rotating screw 33 of the device 31 is rotated and adjusted to move the sliding table γ forward until the grinder 3 and the outer circumferential end 19 of the cutting edge of the circular saw 14 coincide. Next, in this state, if the operating handle 20 is rotated from the A position toward the 8th position, the circular saw rotating body 9 will be rotated by 45 degrees clockwise about the support shaft 8. At the same time, the support shaft 8
The rotation guide plate 12 mounted on the mounting shaft 11 which is loosely suspended at an eccentric position also has the feed pawl 21 engaged with the locking part 13 from the beginning.
The circular saw 14 is rotated eccentrically around the support shaft 8 by one frame so that the next blade 15 is at the position of the glider 3. therefore,
As mentioned above, the outer periphery of the circular saw 14 is rotated while being in contact with the glider 3 placed on the foot by the reciprocating rotation operation of the operating handle 2001 times, so the outer periphery of the circular saw 14 is rotated by the support shaft 8-.
It is precisely and quickly polished into an arcuate surface with the center and radius.

When the polishing work on the outer periphery of the ellipse is completed, if the operating handle 20 is rotated counterclockwise in the 1st direction from the 8th position to the A position in the same state, the rotation guide plate 12 is moved with the play interval l. The operation handle 2 is rotated around the support shaft 8 until it reaches the range.
It is eccentrically rotated in the same counterclockwise direction as the 00 rotation direction, and then, when the play interval l range has passed, the locking part 13 is locked at the stop angle (-24), and the rotation guide plate 12 is rotated counterclockwise. Rotation is forcibly prevented, and both the rotation guide plate 12 and the circular saw 14 are operated] - The handle 20 is rotated to the △ position.
The circular saw 15 is rotated eccentrically around the mounting shaft 11 in the opposite direction to the rotating direction of the handle 20, and the circular saw 15 is automatically rotated eccentrically so that the directional peripheral end 19 of the circular saw 15 matches the set position of the glider 3. The cutting edge is eccentrically moved, and the cutting edge is returned to a state where it can move on to the next outer circumference polishing operation without slidingly contacting the glider 3.

Therefore, if the operation of rotating the operating knob 20 toward the front side is repeated 8 times as described above, the outer periphery of the circular saw 14 consisting of 8 blades will be polished into an accurate shape, and when used. A regenerated circular saw that does not rotate incorrectly or generate abnormal noise can be obtained.

Also, when sharpening the cutting edge of the four-blade circular saw 14a,
Since the cutting edges of the four blades provided in the circular saw 14a and Ic are inclined at acute angles with respect to the horizontal center line and the vertical center line, first, the mounting position of the polishing device 2 is changed from the X position to the X position. After that, with the slide table 7 fully retracted toward the front side and the operating handle 20 returned to the 8-position, the rotation guides m12 and 4 for eight blades are attached to the mounting shaft 11.
The circular saw 14a with a single blade is connected to the locking portion 1 by the positioning pointer 37.
3 and the blade 15a match.

Next, the rotary screw rod 33 of the sliding adjustment device 31 is adjusted to rotate back and forth so that the sliding base 7 can move forward until the proximal end of the cutting edge of the circular saw 14a contacts the outer peripheral edge of the fixed glider 3. After adjusting the sliding length, move the sliding table 7 back to the front side again, rotate the glider 3 at high speed, and move the sliding table 7 back and forth by the sliding length. The blade 15a whose outer peripheral end 19a is rounded is reground by the glider 3 so that it has an acute angle.

Once the blade of the circular saw 14a has been resharpened by the above operation, the slide table 7 is moved back fully to the front side again, and the operation handle 20 is rotated back and forth twice from the 8th position to guide one rotation. The board 12 has two pieces (90.
degree) The circular saw 14a is rotated clockwise, and the next blade 15a is rotated to the glider 3 position, so the slide table 7 is rotated again against the glider 3. After reciprocating by one knot length, the next blade 15a is also repolished by the glider 3.

Therefore, by sequentially repeating the above-described operations, even the four-blade circular saw 14a can be efficiently reground and polished using the same circular saw 16 normal polishing machine.

In addition, during the above-mentioned cutting edge regeneration and polishing work, the upper surface of the front half of the slide table 7 is covered by a dustproof plate 38, and the area above the sliding contact position of the glider 3 and the circular saws 14, 14a is covered by a transparent safety cover 40. Since they are covered, cutting dust generated during polishing work is removed from the slide table 7 and guide rails 6 and 6.
This prevents the blade from entering the gap between the blade and the blade, making the sliding movement unsmooth, or hitting the operator, making it possible to safely and easily perform correction and polishing operations with a circular saw while saving labor. can be achieved.

Embodiment The present invention will be described with reference to a preferred embodiment shown in the accompanying drawings.

In the drawing, reference numeral 1 denotes a mounting base with legs that can be installed at any location, and a polishing device 2 is removably installed on the front side of the mounting base 1 via a mounting device 4. Moreover, the grinder 3, which is directly connected to the tip of the polishing device 2, is rotated at high speed at an angle of 45 degrees with respect to the horizontal plane.

When the mounting device 4 is installed at the X position on the mounting base 1 via the tensioning tool 5, the blade edge polishing work and the outer circumference polishing work of the 8-blade circular saw 14 can be easily accomplished, Further, when the setting of the mounting device 4 is changed from the X position to the X position, the setting is 5 so that the cutting edge of the four-blade circular saw 14a can be easily polished.

On the opposite side of the mounting base 1, two inclined guide rails 6.6 on the left and right are installed parallel to each other at intervals so as to extend in the front-rear direction with respect to the polishing device 2 installed at the X position. Ori,
Between the two left and right inclined guide rails 6.6, both sides of the flat plate are bent diagonally downward to each other in order to be able to slide back and forth along the two inclined guide rails 6.6. A curved sliding table 7 is fitted therein. A support shaft 8 is erected upward on the sliding table 7 in a non-rotatable state, and a disc-shaped circular saw rotating body 9 is fitted into the support 1118, and the sliding table is A rotation promoting material 10 made of rubber or resin is disposed between the circular saw rotating body 7 and the circular saw rotating body 9, so that the circular saw rotating body 9 can freely rotate in the left and right directions about the support shaft 8. .

On the upper surface of one side of the three round bar rotating body 9, there is a mounting shaft which is fitted into the th socket and is erected upward in such a manner that it can be rotated at an eccentric position relative to the support shaft 8. 11 is the provision.

A circular rotation guide plate 12 having eight locking parts 13 provided at equal intervals on the periphery is fixed to the mounting shaft 11, and a circular rotation guide plate 12 (8 pieces on the main periphery) is fixed to the mounting shaft 11. blade 15
, or an eight-blade circular saw 14 or a four-blade circular saw 14a each having four blades i5a are inserted and placed on the mounting shaft 11 in a replaceable manner.

The circular saws 14 and 14a are both firmly attached by a spacing tube 16 and a clamping plate fitted into the mounting shaft 11, and a fastening fitting 18 screwed into the distal end of the mounting shaft 11.

The rotation guide plate 12 and the circular saws 14, 14a are attached to the mounting shaft 1.
1, the locking part 13 and the blades 15, 15
The settings are set so that the values a and a match each other. Therefore, according to the above setting conditions, the grinder 3 is positioned at the outer peripheral end 19° 19a of the blades 15, 15a of the circular saws 14, 14a.

Reference numeral 20 denotes an operating knob whose base end is attached to one side wall of the circular saw rotating body 9, and the operating knob 20 is rotated toward the front side from the 8th position to the 6th position. Rotate the circular saw rotating body 9 1.1 45 degrees clockwise about the support shaft 8. A substantially central portion of a feed pawl 21 is pivotally mounted in the middle of the operating nozzle 20, and a towed projectile 22 is strung across the base end of the feed pawl 210 and the operating nodle 20. The urging force of the machine 22 causes the tip side of the feed pawl 21 to be locked to one of the locking portions 13 provided on the periphery of the rotary guide disk 12.

Therefore, by rotating the operating handle 20 from the △ position to the 6th position, the rotation guide plate 12 and the circular saws 14 and 14a, which are mounted on the mounting i1M+11, are both 1']. A shaft 23 is erected at the rear position, and a substantially central portion of a stopper 24 is pivotally mounted on the shaft 23, and a tension member mounted on one end of the stopper 24 and on the slide table 7 near the shaft 23 is mounted on the shaft 23. A towing device 26 is stretched between the dispensing tool 25 and the towing elastic force presses the tip end side of the stopper 24 against the circumference of the rotation guide plate 120.

The relative positional relationship between the locking portion 13 of the rotation guide plate 12, the feed pawl 21, and the stopper 24 is such that the feed pawl 21 is forcibly engaged with the − number of locks i13 by the biasing elasticity of the towing bomb 22. In this state, the stopper 24 is not engaged with the other locking portions 13, and the setting is such that there is a play interval l of the length between the stopper 24 and the other locking portions 13. Therefore, by setting the play interval l as described above, when the operating handle 20 is rotated backward from the 8th position row to the 4th position row, the circular saw rotating body 9 will move counterclockwise around the support shaft 8. The rotation guide plate 12 is eccentrically rotated about the support shaft 8 in the same counterclockwise direction as the rotation direction of the operating handle 200 up to the range of the play interval l of the length. Play interval! When the range is exceeded, the stopper 24 is locked to the locking portion 13 by the biasing elasticity of the towing projectile 26, and the rotation guide plate 12 is forcibly prevented from rotating counterclockwise. Both the movable guide plate 12 and the circular saw 14 are rotated when the operating handle 20 completes the restoring rotation (up to the F33rd position), when the mounting shaft 11 is turned in the opposite direction to the rotating direction of the operating handle 200.
While being rotated slightly around the support shaft 8, the outer peripheral end 19 of the blade 15 of the circular saw 14 is automatically eccentrically moved to match the set position of the grinder 3. It is something that operates.

In the case of a four-blade circular saw 14a, by performing the above-described operation twice, the outer peripheral end 19a of the blade 15a of the circular saw 14a is automatically eccentrically moved to match the set position of the grinder 3.

Therefore, in order to stop the operating handle 20 in the 6th position row, a stop device 27 is provided in the 6th position row. This stopping device 2T is formed by screwing a screw punch 30 with a handle equipped with a compression bomb 29 onto the tip side of an overhanging plate 28 whose base end is attached to a sliding table γ. The range of rotation of the operating handle 20 can be finely adjusted by moving the screw punch 30 with a needle forward and backward.

Note that in the 4th position row, the stopper 24 is engaged with the locking portion 13 to prevent the operating handle 20 from being rotated further counterclockwise, so a stopping device is not required in the 4th position row.

Therefore, when the screw punch with handle 30 is operated backward, the rotation range of the operating handle 200 is wider than the preset rotation range of 45 degrees (when adjusted, the circular saws 14 and 14a are
The blade is rotated by more than a degree, and the cutting edge is more likely to be scraped during the blade edge polishing operation by the rotation range angle that is greater than the set value.

Reference numeral 31 denotes a sliding adjustment device for freely sliding adjustment of the sliding table 7 to a desired length with respect to the polishing device 2 installed at the X position or the Y position of the mounting table 1; As shown in FIG. 7, the adjustment device 31 includes a rotating wire rod 33 with a handle mounted on a pair of front and rear bearing fittings 32 and 32 installed at the front and rear positions of the mounting base 1, and a sliding base. A movable piece 34 is screwed to the rotating wire rod 33 so as to be located between the rotating rod 33 and the mounting base 1.
Furthermore, a stop fitting 35 that collides with the moving piece 34 is provided on the front side of the sliding table 70, and the moving piece 34 is moved along the rotating line rod 33 by the left and right rotation of the rotating line rod 33. By moving it back and forth, the sliding length of the sliding table 7 can be finely adjusted.

Note that the sliding adjustment device 31 allows the desired length to be adjusted to 1
After the sliding adjustment dimension of is obtained, the sliding table γ
, the knob 3 attached to the front side of the sliding table γ.
The push and pull operation of step 6 allows the stop metal fitting 35 to slide back and forth along the inclined guide rail 6.6 until it collides with the moving piece 35 and stops.

37 is the locking part 13 of the rotation guide plate 12 and the circular saw 14° 14a
Install it with the blades 15 and 15a aligned.
It is a positioning pointer for integrally attaching it to ill 11, and its base end side is attached to a dustproof plate 38 attached over the upper surface of the first half of sliding table 7. The above-mentioned dustproof plate 38 is formed in such a size that its periphery protrudes outward from the sliding table T, so that cutting dust generated during the grinding work of the blade edges of the circular saws 14 and 14a or the grinding work of the outer periphery of the circular saw 14 is prevented from sliding. This prevents the sliding table 7 from entering between the moving table 7 and the left and right inclined guide rails 6.6 and making the sliding movement of the sliding table 7 unsmooth.

A gate-shaped support fitting 39 is placed on the mounting base 1 near the contact area between the grinder 3 and the circular saws 14 and 14a, and a transparent safety cover 40 is placed on the horizontal part of the support fitting 39.
One end is hinged to the vibrating port with a hinge 41 to cover the upper part of the contact part, so that cutting dust does not fly to the operator during polishing work? To safely perform circular saw correction and polishing work by preventing such occurrences.

A locking member 41 for stopping the transparent safety cover 40 at a predetermined position is attached to the horizontal portion of the support fitting 39.

Also, set the polishing bag e2 to the X position when using 8 blades.
The reason why the 4-blade blades were installed in different Y positions is that each of the 8 blades 15 is located on a radial line passing through the center of the circular saw 14. Since the four blades 15a are formed with respective inclination angles with respect to the horizontal center line and the vertical center line of the circular saw 14a, the polishing device ie with four blades is smaller than that with eight blades.
This is because unless the installation position of No. 2 is set at the Y position, which is shifted to one side by the inclination angle of the four blades from the X position, the blade edge cannot be polished accurately by the back and forth movement of the sliding table 70. .

A polishing mounting membrane 4 for installing the polishing device 2 at a predetermined location at the X position or Y position on the mounting base 1 is mounted on the mounting base 1 via a tensioning device 5 as shown in the eighth figure. A base end piece of a substantially elliptical mounting frame 43 is connected to a T-shaped mounting base 42 by a rotation shaft 44, and an arc-shaped elongated hole 45 bored in the base end piece of the mounting frame 43 has a mounting base. A screw shaft protruding from 42 is inserted, and a nut 46 is screwed onto the end of the screw shaft, so that the mounting frame 43 can be adjusted one turn in the front-back direction about the rotation shaft 44 by loosening the nut 46. Therefore, the front and back inclination angle of the polishing device 20 mounted on the mounting frame 43 can be adjusted to a position where it is easy to work.

Moreover, as shown in FIG.
f! A locking pin 48 is inserted into and removed from the metal fitting 4r so that even if the sliding base 7 is moved toward the front, it cannot be removed from the mounting base 1 due to the locking operation of the locking pin 48. In addition, when the locking pin 48 is pulled out from the metal fitting 47, the sliding base 7 can be removed from the mounting base 1 with a one-touch operation and cleaned.

Further, the circular saw rotating body 9 is not in the shape of a disk (it may be formed in the shape of a three-dimensional rectangle).

Effects of the Invention In short, the present invention has the above-mentioned technical means, so when the polishing device 2 is installed at the X position on the mounting base 1, the sliding hole 11 adjustment center 31 performs the sliding σ1h length adjustment operation. The cutting edge of the 8-blade circular saw 14 can be polished by reciprocating the sliding table r back and forth over the sliding length, and the polishing device 2 can be attached to the mounting table 1.
When the above 7th position is changed to 1δ, the sliding length adjustment operation of the J'Jj movement adjustment device 31 and the auxiliary operation of the back and forth reciprocating movement of the sliding table T spanning the crosspiece allow the four-blade Perhaps it is possible to accurately polish the blade edge of the circular saw 14a with some circular saw correction polishers, but by rotating the operating handle 20 once toward the front side, the circular saw rotating body 9 can be polished. The rotary guide plate 12 and the circular saw 14 and 14a mounted on the support shaft 8 and the eccentric position +!1 are attached to the polishing device 2 installed in the 45 degrees,)
Operation: Since it can be rotated in the same direction as the dollar 20, 8 sheets can be rotated by alternately repeating the rotation operation of the operation handle 20 toward the front side and the back and forth reciprocating sliding movement of the slide table 7. Not only can the blade or four-blade circular saw 14° 14a be polished continuously and efficiently, making it possible to regenerate it into a circular saw with good sharpness, but also the sliding 111 - knotting device 31
When the sliding depth of the slide table 7 is adjusted so that the sharpening device 2 comes into sliding contact with the outer peripheral edge of the circular saw 14, the 8-blade is removed by rotating the operating handle 2o toward the front side. The outer periphery of the circular saw 14 is polished to an accurate shape so that the circular saw does not become unbalanced during use and rotates smoothly without making noise, allowing for beautiful cutting work. When rotating the handle 2o in the restoration direction, the operating handle 2o
The rotation guide plate 12, which is about to be eccentrically rotated in the same direction as the rotation guide plate 12, is stopped by a stopper 24 provided with a predetermined play distance IQNJ between it and the locking part 13, and its rotation is stopped. In this state, the rotation of the operating handle 20 was eccentrically rotated around the support 1 track 8 until the end of the restoring rotation.
position), the outer peripheral edge 19 of the blade 15 of the circular saw 14 is always
is eccentrically shifted so that it matches the position of the grinder 3 of the polishing device 2, and the regenerated blade is prevented from coming into contact with the Kenreki Soshin 2 and the cutting edge is sharpened, and the next outer periphery polishing operation is started immediately. can be migrated. Furthermore, in the present invention, a transparent safety cover 40 which is hinged to a support fitting 39 installed on the mounting base 1 so that it can freely vibrate is disposed on the azimuth indicator above the contact area between the circular saw 14.14a and the grinder 3. This makes it possible to reliably prevent cutting dust generated during blade edge polishing or outer periphery polishing from accidentally hitting the operator, making it possible to perform regrinding operations more safely. A dustproof plate 38 whose periphery extends outward from the sliding table 7 is removably attached to the upper surface of the approximately front middle part of the moving table 7, so that generated cutting dust is removed from the sliding table 7.
The sliding part of the sliding table 70 is not clogged and the sliding movement of the sliding table 70 is prevented from being jammed, and the sliding movement of the sliding table 70 is not smooth. play.

[Brief explanation of the drawing]

The drawings show an embodiment of a circular saw correction and polishing machine according to the present invention, and FIG. 1 shows an 8-blade circular saw with the polishing device installed at the X position of the mounting base for polishing the cutting edge and the outer periphery of the saw. Overall side view when working, Figure 2 is the same plan view, Figure 3 is an enlarged vertical cross-sectional view of the main parts, Figure 4 is an explanation of operation, clear view, Figure 5 is the circle ε of the 4-blade. Figure 6 is an enlarged plan view of the 4-blade circular saw when the polishing device is installed at the Y position of the mounting base to polish the cutting edge of a four-blade circular saw, and Figure 7 is a diagram of one part of the sliding adjustment device. FIG. 8 is an enlarged front view of the polishing mounting device, FIG. 9 is an enlarged side view of the sliding table removal device with a portion cut away, and FIG. 10 is an enlarged side view of the circular saw. FIG. 11 is a plan view showing a state in which a new modified circular saw has been drawn using a modified ruler on its surface, and FIG. 11 is a front view of the modified ruler. 1... Mounting stand, 2... Polishing device, 7... Sliding stand,
8... Support shaft, 9... Circular saw rotating body, 11... Mounting shaft, 12... Rotating guide plate, 13... Locking part, 14
, 14a...Circular saw, 15.15a...-Sword, 19,
19a... Peripheral end of blade row, 20... Operation handle, 2
4...Stopper, 31...Sliding adjustment device, 38.
...Dustproof plate, 39...Supporting metal fittings, 40...Transparent safety cover,! ... Play interval (Ff Applicant's procedure amendment (voluntary) October 22, 1980 Manabu Shiga, Commissioner of the Patent Office 2゜ Title of invention Circular saw straight grinding machine 3, case of person making amendment Relationship with: Patent applicant 4, agent 〒201 6 Subject of amendment, 1 (“Detailed description of the invention column” 7 in Book H, contents of amendment (1) Specification, page 10, line 1 or 2nd line, 1st line
Page 0, lines 6 to 7, page 10, line 10, page 1
Page 0, line 13, page 11, line 11, page 12, line 1, page 12, lines 4 to 5, page 12, line 7,
Page 13, line 9, page 13, line 13, page 14, negative line 8, page 14, line 10, page 15, line 9 to line 1O, page 15, line 12 Do to line 13, same line 15
Original line 15, same page 16, lines 2 to 3, same page 16
"Glider" written in line 4 of page 16, line 5 of page 16, and line 12 of page 16 will be corrected to "grinder." (2) "Rotating body 12" on page 10, line 15 of the specification is corrected to "rotating body 9J". (3) "Support shaft 8" written on page 10, lines 1 and 2 of the specification is corrected. Correct it as "Mounting axis 11". (4) Specification R1: Correct "When the eyes and face 1 are turned" in the 5th line of page 12 to "When the eyes and face are rotated." (5) "Mounting shaft 11" described in page 14, line 7 of the specification is "
Correct it to "Support axis 8". (6) Page 24, line 16 of the specification R's father's "vibration self" is
"Vibration freely" is corrected. (7) "8th illustration" written in Meikan 1, page 26, line 9 is changed to "
9.

Claims (6)

[Claims] (1) A sliding table that can adjust the sliding length in the front and back direction with a sliding adjustment device and a polishing device that can change the mounting position with respect to the sliding table in two stages are installed on the mounting table, The above-mentioned sliding table has a rotating guide plate with eight locking parts on its periphery, and a mounting shaft on which a circular saw with eight or four blades, respectively, is attached on the periphery in a freely replaceable manner. The circular saw rotating body is disposed so that the circular saw is sequentially fed and rotated by 45 degrees in one direction by back and forth rotation of the operation handle about a support shaft provided eccentrically to the mounting shaft. , the rotation guide plate remains locked by a stopper disposed with a predetermined play interval between it and the locking portion until the restoring rotation ends when the circular saw rotating body starts the restoring rotation. A circular saw correction and polishing machine characterized in that the circular saw is eccentrically rotated around a support shaft to eccentrically move the circular saw to a position where a grinder of a polishing device and an outer peripheral edge of the blade of the circular saw coincide. (2) In the product described in claim 1, a transparent safety cover is provided at a position above the contact area between the circular saw and the grinder and is hinged to a support fitting installed on a mounting base so as to be able to freely vibrate. A circular saw correction and polishing machine. (3) The device described in claim 1 is characterized in that a dustproof plate whose periphery extends outward from the sliding table is removably attached to the upper surface of the approximately front half of the sliding table. Circular saw correction and polishing machine. (4) The sliding adjustment device is arranged between a rotating screw rod rotatably mounted on a pair of front and rear bearing fittings arranged at front and rear positions on the sliding table, and the sliding table and the mounting base. Consisting of a moving piece screwed onto a rotating screw so that the sliding piece is in position, and a stop fitting disposed on the front side of the sliding base so as to collide with the moving piece that is moved forward and backward along the rotating screw. A circular saw correction and polishing machine according to claim 1, characterized in that: (5) The sliding base can be removed from above the mounting base by pulling out a locking pin that is removably inserted into a metal fitting provided on the front side of the mounting base. Circular saw correction and polishing machine as described in section. (6) The polishing device is configured to be inserted and supported by a mounting frame mounted on a mounting base mounted on a mounting base so as to be able to slide back and forth about a rotation axis. Circular saw correction and polishing machine.