JPH03136759A - Removing method for burr - Google Patents

Abstract

PURPOSE:To easily and rapidly remove burrs by inserting parts made of soft material into the easily inserting grooves of a burr removing jig and polishing exposed parts. CONSTITUTION:When a parts 1 is inserted into the inserting grooves 5 of a burr removing jig 4, plane parts 2 on which burrs 3 are formed are slightly exposed from the upper faces of the inserting grooves 5. Under this state, the exposed parts are polished along the plane parts 2 so that the burrs 3 are removed.

Description

[Detailed Description of the Invention] [Summary] A deburring method that involves inserting a part into an insertion groove and removing burrs on the exposed flat part, which easily and quickly removes burrs from parts molded from rubber or the like. This is a deburring method that removes burrs generated during molding on the outer periphery of a flat part of a part molded with a resin material, and the part is A deburring jig is provided that is removably inserted into the deburring jig and has an insertion groove having a depth that slightly exposes the flat part to the outside, and inserting the component into the insertion groove of the deburring jig.
This is a method of polishing the flat parts of parts.

[Industrial application field]

The present invention relates to a method for removing burrs from parts molded from resin materials such as rubber, and more particularly to a method for removing burrs by inserting the part into an insertion groove and polishing the exposed flat surface. .

[Prior art and problems to be solved by the invention] Fig. 2 shows a part 1 molded from a soft resin material 1, for example, rubber, and burrs 3 during molding appear around the flat part 2. .

The burr 3 is caused by a slight gap between the joints of the mating dies. Although such burrs 3 can be reduced in size by increasing the precision of the mold, they cannot be eliminated, so burrs are removed as post-processing.

The method of removing the burr 3 is done manually with scissors or a knife, but since the burr 3 is soft and elastic and difficult to cut, it requires careful work, making the work not easy and also time consuming. For example, in the case of part 1 as shown in the figure, it takes about 30 minutes to deburr one piece.

SUMMARY OF THE INVENTION An object of the present invention is to provide a deburring method that can easily and quickly remove burrs from parts molded from rubber or the like.

5 is an insertion groove; 4 is a deburring jig having an insertion groove 5 into which the component 1 is removably inserted along the outer periphery of the flat part 2 and has a depth to slightly expose the flat part 2 to the outside.

Therefore, the method is to insert the part 1 into the insertion groove 5 of the deburring jig 4 and polish the flat part 2 of the part 1.

[Effect]

When the component 1 is inserted into the insertion groove 5 of the deburring jig 4, the flat part 2 where the burr 3 is formed on the outside of the insertion groove 5 is slightly exposed from the upper surface of the insertion groove 5. By polishing, the burr 3 can be easily and quickly removed.

[Means to solve the problem]

Figures 1 (a) to (C) are explanatory diagrams showing embodiments of the present invention, in which (a) is a plan view of the deburring jig, (b) is a plan view when parts are inserted, and (C) is the part It is a side view at the time of insertion.

In the figures, 1 is a part, 2 is a plane part, 3 is a burr, [Example] Figures 1 (a) to (C) are explanatory diagrams showing an example of the present invention, and (a) is a deburring jig. (b) is a plan view when the component is inserted, and (C) is a side view when the component is inserted.

As shown in FIG. 1(a), the deburring jig 4
The groove width is formed to be slightly larger than the dimension of the part 1 so that the part 1 can be inserted and removed along the outer periphery, and the groove depth is formed to be slightly larger than the dimension of the part 1 so that the flat part 2 of the part 1 protrudes slightly from the top surface.
An insertion groove 5 is provided which is slightly thinner than the thickness of the insertion groove 5.

Therefore, as shown in FIGS. 1(C) and 1(C), the part 1 is inserted into the deburring jig 4 so that the flat part 2 having the burr 3 is exposed, and the flat part 2 is inserted into the deburring jig 4. Since the burr 3 protrudes slightly from the upper surface of the burr 4 and is located above the upper surface, when the flat portion 2 is polished by a bar polisher or a polishing machine, the burr 3 is removed while the flat portion 2 is slightly ground. For example, in the case of part 1, deburring is completed in about 2 minutes.

Here, the thickness of the part 1 is made thicker by the dimension in which the flat part 2 is ground, so that the thickness of the part 1 becomes the regular dimension after deburring.

In the above example, we have explained the case of an impeller-shaped part 1 molded from rubber, but the same effect can be obtained by applying it generally to deburring the flat parts of parts of different shapes molded from soft materials. It will be done.

〔Effect of the invention〕

As explained above, according to the present invention, a part made of a soft material is inserted into a removable insertion groove of a deburring jig, and the exposed part is polished, thereby easily removing burrs. It has the effect of being able to be removed quickly.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an embodiment of the present invention, and FIG. 2 is an explanatory diagram of a conventional example. In the figure, l is the part, 2 is the flat part, 3 is the burr,
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Claims (1)

[Scope of Claims] A burr removal method for removing burrs (3) generated during molding on the outer periphery of a flat part (2) of a part (1) molded from a resin material, the part (1) comprising: a deburring jig (4) that is removably inserted along the outer periphery of the flat part (2) and has an insertion groove (5) having a depth that slightly exposes the flat part (2) to the outside;
), the part (1) is inserted into the insertion groove (5) of the deburring jig (4), and the flat part (2) of the part is polished.