JPH0453886Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a round blade support device that supports a round blade in a surface polishing machine.

(Prior Art) When supporting a round blade in a conventional surface polishing machine, the round blade is fixed to a round blade holder by screwing a fixed handle or the like.

(Problem to be solved by the invention) In the conventional method of supporting the round blade described above, each time the round blade is replaced, the fixed handle must be rotated to attach and detach it from the bolt. The problem is that it takes time and effort to attach and detach, and it is inconvenient to handle and has poor workability.

(Means for solving the problem) Therefore, this invention was developed to solve the above problems by making it possible to quickly replace the round blade in a surface polishing machine, and to accurately polish the cutting edge surface. A U-shaped base metal 3 is rotatably attached to a support base 2 that is vertically adjustable on a support base 1, and the U-shaped base metal 3
A round blade presser 4 and a round blade holder 5 are arranged vertically facing each other with an appropriate gap between the upper and lower pieces of the U-shaped base metal 3. The round blade holder 5 is rotatably fitted to the lower end of the presser shaft 7, which is inserted into the presser shaft 7 so as to be vertically movable and pressed upwardly by a spring 6. It is rotatably fitted onto the upper end of a receiving shaft 9 which is pressed upward by a spring 8, and the upper end of the presser shaft 7 is connected to a presser handle 10 to constitute a support device a for the round blade 11.

(Function) After placing the round blade 11 on the pedestal 5, the round blade 11
The supporting device a is moved up and down, and the attachment part of the round blade 11 is rotated left and right so that the cutting edge surface of the grinding wheel 12 is aligned with the upper part of the grinding wheel 12 with a suitably small interval.
Adjust the tilt to the side to the desired angle and secure.

Then, if you push down the handle 10, the presser plate 4
The presser shaft 7 descends against the elasticity of the spring 6, and the round blade 11 is held between the presser plate 4 and the pedestal 5. After that, if you push down the handle 10 further,
In response to the pushdown, the bearing shaft 9 descends against the elasticity of the spring 8, and the round blade 11, while being held by the press plate 4 and the pedestal 5, descends integrally with them. The blade edge surface hits the upper surface of the grindstone 12.

On the other hand, when the pressing force of the handle 10 is relaxed, the elasticity of the springs 6 and 8 causes the presser shaft 7 with the presser plate 4 and the receiving shaft 9 with the pedestal 5 to rise and return to their original positions. The blade 11 moves away above the grindstone 12, and on the other hand, the presser plate 4 moves away above the pedestal 5, a gap is formed between them, and the grip of the round blade 11 is released.Thereafter, the round blade 11 can be replaced. I can do it.

(Embodiment) To explain the structure of one embodiment of this invention shown in the drawings, 1 is a frame of a surface polishing machine;
3 is a receiver fixed to the upper end of one side of frame 1;
The upper end of the support 14 is fixed to the center of the receiver 13.

a shows a round-blade support device that is attached to the support column 14 in a vertically adjustable manner; 2 is a clamp-type support device for the support device; 2 is a clamp-type support device that fits into the middle part of the support column 14 so as to be vertically movable; The support base 2 is fixed to the support column 14 by tightening the bolts 15. Reference numeral 16 denotes adjustment bolts arranged in parallel in front of one side of the support column 14, whose upper end is rotatably fitted into one side of the support 13, and whose middle portion is screwed into a screw hole on one side of the support base 2. , a handle 17 is attached to the upper protrusion of the adjustment bolt 16.
Reference numeral 18 denotes a support shaft that projects forward into the support base 2 and is rotatably fitted, and is fixed to the support base 2 by tightening it with a fixing bolt 20 with a knob 19 screwed into a screw hole on one side of the support base 2. do. Reference numeral 3 designates a U-shaped base metal whose open portion faces forward, and the center hole of the rear piece is fitted into the front protrusion of the support shaft 18 to be fixed.

21 is a support provided on the rear of the U-shaped base metal 3;
A long hole 23 at the rear end of the presser handle 10 is fitted into the horizontal shaft 22, and a hole 24 is provided in the middle of the presser handle 10. Reference numeral 7 denotes a presser shaft, which is inserted into a hole in the front end of the upper piece of the U-shaped base metal 3 so as to be vertically movable. A spring 6 fitted to the presser shaft 7 is interposed between the U-shaped base metal 3 and the catch seat 25, and the downward protruding portion of the presser shaft 7 allows the plate to be tilted. A shaped round blade presser 4 is rotatably fitted. Reference numeral 9 denotes a receiving shaft, whose lower part is vertically movably fitted into a bearing 27 at the front end of the lower piece of the U-shaped base metal 3. A head 28 is attached to the upper end of the receiving shaft 9, and a bottom plate of the bearing 27 is inserted downwardly. A bolt stopper 29 is provided, which is inserted into the hole and screwed into the threaded hole of the receiving shaft 9, and the round-blade holder 5, which has a fitting protrusion 30 formed on the center thereof, is rotatably mounted on the head 28 of each bolt. A spring 8 fitted to the bearing shaft 9 is interposed between the bearing 27 and the head 28 as a support 31.

11 is a round blade, 32 is a splash water receiving box placed below the support device a, and a drain port 33 is provided on the other side of the front end.
A drain hose (not shown) is connected below the drain port 33.

Reference numeral 34 denotes a rotary shaft supported vertically in the splashed water receiving case 32 at the other side of the center of the U-shaped base metal 3, and the grinding wheel 12 is attached to the end of the rotating shaft extending into the scattered water receiving case 32. Reference numeral 35 denotes a motor attached to the rear of the other side of the rotary shaft 34, and its driving shaft 36 and the lower end of the rotary shaft 34 are connected by a belt transmission mechanism 37.

38 is a water tank installed on frame 1,
The tip of the drain hose 39 is placed above the grindstone 12. 40 is a switch box.

Next, its effect will be explained. First, when the motor 35 starts operating, the grinding wheel 12 rotates in the direction of the arrow in FIG. 2 via the driving shaft 36, the transmission mechanism 37, and the rotating shaft 34.

On the other hand, water is supplied into the tank 36 and the water is allowed to drip onto the grindstone 12 in small amounts from the tip of the hose 39.

Therefore, as shown in FIG. 1, after fitting the center hole of the round blade 11 into the protruding piece 30 of the pedestal 5 and placing the round blade 11 on the pedestal 5, the lower surface of the cutting edge of the round blade 11 is placed on the whetstone. Rotate the adjustment bolt 16 to one side or the other using the handle 17 so that the adjustment bolt 16 is aligned above the adjustment bolt 12 with a suitable small gap, and slide the support base 2 whose screw hole is engaged with the adjustment bolt 16 onto the support column 14. The supporting device a is raised or lowered in parallel. On the other hand, operate the handle 10 to one side or the other side, and
The angle of inclination of the mounting portion of the round blade 11 of the support device a with respect to the grindstone 12 is adjusted by rotating the base metal 3 about its support shaft 18 to one side or the other. after that,
Screw in the bolt 15 to tighten the support base 2 to the column 14, turn the fixing bolt 20 using the knob 19, and tighten the support shaft 18 to the support base 2 with the fixing bolt 20, and attach the support device a and its round blade 11. The supporting device a is set in the desired state on the support column 14 by fixing the respective parts in the adjusted positions as described above.

When the handle 10 is pushed down, the handle 10 resists the elasticity of the spring 6 and rotates clockwise in FIG.
0, the presser plate 4 is lowered integrally through the shaft 26 and the presser shaft 7, and the protruding piece 30 of the pedestal 5 enters the recess of the presser plate 4, and the outer periphery of the presser plate 4 and the pedestal 5 The round blade 11 is held.

Thereafter, as the handle 10 is pressed down, the bearing shaft 9 slides on the bearing 27 against the elasticity of the spring 8, and the round blade 11 descends while being held between the presser plate 4 and the pedestal 5 and becomes round. The cutting edge surface of the blade 11 contacts the upper surface of the grindstone 12.

Therefore, the round blade 11 rotates around the presser shaft 7 and the receiving shaft 9 as fulcrums while being integral with the presser plate 4 and the pedestal 5 that hold the round blade 11 by contact with the grindstone 12 on the cutting edge surface. The cutting edge surface of the blade 11 is polished by a grindstone 12.

Therefore, after the polishing work of the round blade 11 is completed, if the pressing force of the handle 10 is relaxed, contrary to the above,
Due to the elasticity of the spring 8, the round blade 11 rises integrally with the presser shaft 7 with the presser plate 4 and the receiving shaft 9 with the pedestal 5, and the round blade 11 leaves above the grindstone 12 and stops rotating. In addition, the presser plate 4 and the presser shaft 7 with the handle 10 rise due to the elasticity of the spring 6.
The presser plate 4 is separated above the pedestal 5 and restored.

Therefore, if the round blade 11 is then turned over or replaced and the above operation is repeated, the work can be continued.

(Effects of the invention) The round blade support device in the surface polishing machine of this invention has the following remarkable effects.

(1) By adjusting the support stand of the support device up and down and adjusting the U-shaped base metal left and right, when the round blade is placed on the cradle of the support device, the cutting edge surface of the round blade is always adjusted to the appropriate position. It is possible to precisely form an appropriate small gap above the grindstone and grind the cutting edge surface to a predetermined slope.

(2) By pressing down on the presser handle, the round blade is clamped between the presser plate and the pedestal, and then they lower together and the cutting edge of the round blade comes into contact with the whetstone, and as the whetstone rotates. The round blade is held between the presser plate and the pedestal and rotates together with them to polish the cutting edge surface of the round blade. Therefore, (a) polishing operation is easy.

(b) The cutting edge surface of the round blade is precisely and evenly polished for good sharpness.

(c) The work does not require any skill, and even an amateur can perform the work easily and appropriately.

(3) As the pressing force of the presser handle is loosened, the presser plate with the presser handle and the pedestal automatically rise due to the elasticity of the spring, and the round blade also rises, and the round blade is placed above the grinding stone. When they are separated, the rotation stops, and on the other hand, the presser plate is separated above the pedestal and a gap is formed between them, so the round blade can be replaced safely, easily, and quickly.
Its operation is simple, saving time and labor and improving work efficiency.

(4) The structure is simple and easy to manufacture, and its operation is light and smooth.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional front view of a surface polishing machine according to an embodiment of the invention, FIG. 2 is a plan view of the same, and FIG. 3 is an enlarged side sectional view of the main parts thereof. 1... Frame, 2... Support stand, 3... U-shaped base metal, 4... Round blade presser, 5... Round blade holder, 6...
Spring, 7... Presser shaft, 8... Spring,
9... Receiving shaft, 10... Presser handle, 18... Support shaft.

Claims (1)

[Scope of utility model registration request] A U-shaped base metal is rotatably attached to a support base that is vertically adjustable on the frame, and a round blade presser and a round blade holder are placed between the upper and lower sides of the U-shaped base metal with an appropriate gap. The round-blade presser plate is vertically movably inserted into the hole in the upper part of the U-shaped base metal, and is rotatably attached to the lower end of the presser shaft, which is pressed upward by a spring. The round blade holder is rotatably fitted to the upper end of the bearing shaft which is vertically movably supported on the lower piece of the U-shaped holder and pressed upward by a spring, A support device for a round blade in a surface polishing machine whose upper end is connected to a presser handle.